EP2573452B1 - Unité optique améliorée et torche dotée d'une telle unité - Google Patents

Unité optique améliorée et torche dotée d'une telle unité Download PDF

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Publication number
EP2573452B1
EP2573452B1 EP12156444.7A EP12156444A EP2573452B1 EP 2573452 B1 EP2573452 B1 EP 2573452B1 EP 12156444 A EP12156444 A EP 12156444A EP 2573452 B1 EP2573452 B1 EP 2573452B1
Authority
EP
European Patent Office
Prior art keywords
convex lens
mirror
light source
light
optical package
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12156444.7A
Other languages
German (de)
English (en)
Other versions
EP2573452A3 (fr
EP2573452A2 (fr
Inventor
Chen JIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAX LUX CORP Ltd
Original Assignee
MAX LUX CORP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2011203645359U external-priority patent/CN202253393U/zh
Application filed by MAX LUX CORP Ltd filed Critical MAX LUX CORP Ltd
Publication of EP2573452A2 publication Critical patent/EP2573452A2/fr
Publication of EP2573452A3 publication Critical patent/EP2573452A3/fr
Application granted granted Critical
Publication of EP2573452B1 publication Critical patent/EP2573452B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F21V13/045—Combinations of only two kinds of elements the elements being reflectors and refractors for portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F21L4/022—Pocket lamps
    • F21L4/027—Pocket lamps the light sources being a LED
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F21V14/025—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources in portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F21V14/065—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors in portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0066—Reflectors for light sources specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present application relates to the technical field of optics, and more specifically, to an improved optical package and an illumination torch using the optical package.
  • the traditional incandescent or LED torches are composed of a parabolic concave mirror and an incandescent or LED light source set at the focus of the concave mirror.
  • the light in the middle of or near the light source will be given off in a straight line, thus causing the unavailability of the effective light use since the light reflected from the middle is not strong enough and cannot realize long-distance illumination with great light loss.
  • the traditional torches are composed of a bulb, a lamp holder, a parabolic concave mirror and batteries.
  • the bulb is used as a light source from which the light is emitted from the inner chamber of the mirror; the batteries are used to provide electrical energy for the bulb, wherein the sleeve head part at the front end of the lamp holder is capable of rotating relatively to the main body of the lamp holder, the mirror is fixed inside the sleeve head part, and the bulb is connected at the front end of the lamp holder.
  • the sleeve head part is assembled with the main body of the lamp holder by means of threads.
  • the sleeve head part rotates relatively to the main body of the lamp holder, the axial distance between them can be changed, thus the bulb position in the axial direction of the mirror can be changed. Therefore, when the bulb moves along the axial line of the mirror, the light emitted by it is given off from the front end of the torch after being reflected by the mirror and can generate various different shadows.
  • the existing torches have the following using defects since they use the structure above:
  • one objective of the present invention is to provide an optical package capable of reducing light loss effectively.
  • Another objective of the present invention is to provide a torch using the optical package above.
  • the present invention comprises the technical features of claim 1.
  • the optical package includes a light source, an installation socket, a mirror and a convex lens, wherein at least one part of the projection of the reflection surface of the mirror on its axial section is in a parabolic shape, the mirror and the convex lens having the same axes, an installation depression is set at the front end of the optical package, wherein the light source is configured in the installation depression, the emitting point of the light source is on the axis of the convex lens and the circumference of the installation depression is formed to be a reflection surface capable of reflecting the light emitted from the bottom of the light source, a light-penetrable support integrated with the convex lens is configured between the outer circumference of the convex lens and the upper end part of the mirror, and a flat and straight light-penetrable connecting plate is integrated between the circumference of the convex lens and the support and is used as a buffer section between the convex lens and the support.
  • the installation socket can move along the axial direction of the convex lens.
  • the light source is a point light source.
  • the focuses of the convex lens and the mirror coincide with each other.
  • the installation socket moves to the maximum space of the convex lens, the emitting point of the light source and the focus of the mirror coincide with each other.
  • the light source is a surface light source.
  • the focuses of the convex lens and the mirror have a horizontal offset distance no greater than 1mm.
  • the reflection surface is a slant or at least one part of the projection of the reflection surface on the axial section of the mirror is in a parabolic shape.
  • the top end of the light source is on the inner side of the outer end surface of the installation socket, or the top end of the light source is at the same level with the outer end surface of the installation socket.
  • the light source is an LED light, and a through hole fit for the bottom of the LED light is installed at the bottom of the installation socket on the inner side, wherein the axes of the through hole and the convex lens share the same line.
  • the upper surface and/or lower surface of the support are/is in arc shape.
  • a light-penetrable connecting plate is integrated between the circumference of the convex lens and the support.
  • the support is a conical canister, wherein the angle between the two sides of its cross section is greater than 85 degrees and the angle between the extensive direction of the support and the cross section of the convex lens is 30-50 degrees.
  • a light-penetrable support canister is connected between the circumference of the convex lens and the lower end part of the mirror, wherein the support canister is integrated with the convex lens.
  • the refection surface of the mirror has a step, wherein the projections of the refection surface on the axial section of the mirror on the two sides of the step are in a parabolic shape.
  • the light incident surface of the convex lens is a Fresnel surface.
  • the positions of the convex lens and mirror are relatively fixed.
  • the convex lens can move relative to the mirror along its axial direction.
  • the present invention adopts the following technical solution:
  • a limit sliding groove is configured on the inner surface of the sleeve head in its axial direction, wherein the inner side of the limit sliding groove is a dead end and an elastic fastener fit for the limit sliding groove is configured at the circumference of the installation socket.
  • the elastic fastener includes an elastic connecting section extending from the circumference of the installation socket, and a limit flange integrated at the outer circumference of the free end of the elastic connecting section, wherein a limit block is set between the elastic connecting section and the installation socket.
  • a limit plate is mounted on the installation socket and the free end of the elastic connecting section is limited between the limit block and the main body of the installation socket.
  • the present invention also adopts the following technical solution:
  • FIG. 1 shows an improved optical package including an installation socket 1, a light source 2, a mirror 3, a convex lens 4, wherein the mirror 3 is in bowel shape with openings at both the upper and lower parts, the outer circumference of the convex lens 4 in the upper opening of the mirror 3 is fixed and connected on the inner side of the upper opening of the mirror 3 which has a support 5, a transparent plate structure; the installation socket 1 is in the lower opening of the mirror 3 and the light source 2 is fixed at the upper end of the installation socket 1.
  • the mirror 2 is a parabolic mirror, and more specifically, the projection of the reflection surface f1 of the mirror 3 on its axial section is in parabolic shape and the axes of the convex lens 4 and the mirror 3 share the same line R shown in the figure.
  • the focuses of the convex lens 4 and the mirror 3 coincide with each other.
  • the central axis of the installation socket 1 coincides with the axis R and the installation socket 1 can move relatively to the mirror 3.
  • the light source 2 whose light emitting point is on the axis R is installed in the installation depression 11 configured at the upper end surface of the installation socket 1.
  • the circumference of the installation depression 11 is machined to a reflection surface f2, wherein the reflection surface f2 can be a slant or a parabolic reflection surface (that is to say, the projection of the reflection surface f2 on the axial section of the mirror 3 is in parabolic shape);
  • the support 5 above is a conical canister structure, wherein the two ends of its axial section form an angle a greater than 85 degrees.
  • the luminous efficiency is the best when the angle a is 94 degrees.
  • An angle b is generated between the extensive direction of the support 5 and the cross section of the convex lens 4, wherein the angle b is 30 to 50 degrees, and 40 degrees preferably.
  • the part at the front end of the installation socket 1 used to install the light source 2 is required to have a certain diameter which determines the diameter of the lower opening of the mirror 3. Therefore, the diameter of the lower opening of the mirror 3 above shall be no smaller than 6mm so as to ensure that the diameter of the front end of the installation socket 1 is no smaller than 6mm, thus enabling the reflection surface f2 to have suitable opening degree.
  • the optical package can be machined to difference sizes; specifically, the height can be 5-70mm. The proportion of the maximum diameter of the optical package relative to its height is within 1:0.8 to 1:0.5.
  • the luminous efficiency generated is the best when the proportion of the maximum diameter of the optical package relative to its height is 1:0.65.
  • the proportion of the diameter of the convex lens 4 relative to that of the upper end part of the mirror 3 above is within 1:0.5 to 1:0.3, and 1:0.4 preferably.
  • the light source 2 above can be a point light source, the focuses of the convex lens 4 and the mirror 3 above coincide with each other.
  • the installation socket 1 leads the light source 2 to move to the maximum space to the convex lens 4, the light emitting point of the light source 2 coincides with the focuses of the convex lens 4 and the mirror 3.
  • the light source above is a surface light source (such as an LED light)
  • a deviation between the focuses of the convex lens 4 and the mirror 3 within 1mm in the horizontal direction is allowed to exist in the direction vertical to the axis R, wherein the specific size of the deviation is determined by the size of the light emitting area or the light emitting chip of the LED light.
  • the light source above uses an LED light.
  • a through hole fit for the bottom of the LED light is machined at the bottom on the inner side of the installation depression 11, so it can fit for the installation of the LED light.
  • the colinerity of axes of the through hole and the convex lens 4 shall be ensured in advance.
  • the installation socket 1 leads the light source 2 to move along the axis R relative to the mirror 3.
  • the light emitted by the light source 2 will be given off after being reflected by the mirror 3 and refracted by the support 5, while the light in the middle will be given off after being refracted by the convex lens 4 directly and the light at the extreme edge (namely the light forming the maximum angle with the axis R) will be given off after being reflected by the reflection surface f2 at the circumference of the installation depression 11 and refracted by the support 5, thus making full use of the light emitted by the light source 2.
  • the image generated after the light is emitted from the optical package is a maximum aperture, by name commonly referred to as a flood light.
  • the upper top of the light source 2 is on the inner side of the outer end surface of the installation depression 11 or at the same level with the outer end surface of the installation depression 11, thus avoiding the collision between the light source 2 and the inner surface of the convex lens 4 during the movement relative to the convex lens 4 as well as ensuring the sufficient movement range of the light source 2.
  • the inventor has set the axial dimensions of the structures above.
  • the maximum displacement of the movement keeping the light source 2 far away from the convex lens 4 can only ensure that the light emitting point of the light source 2 coincides with the focuses of the convex lens 4 and the mirror 3, that is to say, when the light source 2 moves far away from the convex lens 4 until the light emitting point of the light source 2 coincides with the focus of the convex lens 4, the light source 2 cannot move relatively to the convex lens 4, namely the state shown in FIG. 4 .
  • the inventor limits the curvatures t1 and t2 of the light incident surface and emergent surface of the convex lens 4 above within 0.0001-0.2569mm and 0.0648-0.2169mm respectively.
  • the structure of the optical package shown in FIG. 1 can be optimized, a step 31 is machined on the reflection surface of the mirror 3 above, wherein the upper and lower parts of the step 31 are in parabolic shape; this structure is suitable for the situation that the light source is a line light source, and more specifically, a certain space exists between the focuses of the parabolic reflection surfaces of the upper and lower parts of the step 31 above on the axis of the mirror 3, thus good parallel luminous efficiency can be obtained.
  • the lower surface of the convex lens 4 above can be machined to a Fresnel surface. Since the light emergent surface of the convex lens 4 is machined to a Fresnel surface (wave shape) by removing the part having no direct effect on the light of the light incident surface of the convex lens 4, the distance of the light going through the convex lens 4 is reduced, thus increasing the transmittance of the convex lens 4 and reducing the light loss.
  • a flat and straight connecting plate 41 penetrable to light is mounted between the circumference of the convex lens 4 and the support 5, wherein the connecting plate 41 is integrated with the convex lens 4 and the support 5 and is used as a buffer section between the convex lens 4 and the support 5 during injection molding for the convenience of glue feeding and drawing of patterns.
  • the upper surface of the support 5 above can be machined to an arc-shaped surface, and more specifically, by increasing the thickness from the two sides to the middle, which is equivalent to a light-gathering lens. It is certain that the lower surface of the support 5 can also be machined to the convex arc-shaped surface, or both the upper and lower surfaces of the support 5 are machined to the convex arc-shaped surfaces above.
  • FIG. 5 shows another optical package of the present invention.
  • the structure used to connect and support the convex lens 4 and the mirror 3 is a support canister 6, wherein the support canister 6 made of light-penetrable materials is integrated at the lower part of the circumference of the convex lens 4, and its lower end part is fixed and connected with the inner circumference of the lower opening of the mirror 3.
  • the back end of the support canister 6 above narrows down from the upper part to the lower part in turn.
  • the using situations of the optical package shown in FIG. 6 and FIG. 7 are approximately the same with the optical package above, and will not be detailed herein.
  • the mirror part of the optical package above is composed of aluminum alloy or plastic, preferably PC, PMMA or glass, and shall be provided with high-quality surface finish (such as vacuum coating) so as to improve the light-reflection capacity of the mirror surface;
  • the convex lens part shall be made of plastic, preferably PMMA or glass.
  • the convex lens 4 and the mirror 3 of the optical package above of the present invention are relatively fixed, that is to say, no relative displacement occurs between them. It is certain that, in some application fields, the present invention can also provide the structure shown in FIG. 12 , wherein the convex lens can move along the mirror in its axial direction, namely the axial displacement between them can be changed, so the shadow can be changed by changing the displacement and converting the light path; in this optical package, the mirror can be fixed as described above to let the convex les move relative to the mirror, or the convex lens can be fixed to let the mirror move relatively to the convex lens.
  • the positions of the installation socket 1, mirror 3 and convex lens 4 can be fixed, namely the axial positions of the mirror 3, convex lens 4 and installation socket 1 can be fixed.
  • this configuration is required to set the axial distance between the installation socket 1 and the convex lens 4 according to the application requirements, for example, when gathering light, the distance between the installation socket 1 and the convex lens 4 is required to be set correspondingly to let the light source 2 on the focuses of the mirror 3 and the convex lens 4, then the installation socket 1 shall be fixed and connected with the lower end part of the mirror 3 and the convex lens shall be fixed on the mirror 3.
  • the distance between the installation socket 1 and the convex lens 4 shall be set to enable the light source 2 to be close to the convex lens 4 if possible.
  • FIGs. 13 , 14 and 15 show a torch having the optical package above, including an optical package shown in FIG. 1 , a light holder 7 and a sleeve head part 8, wherein the sleeve head part 8 includes a sleeve head cover 81 at its front end and a sleeve head socket 82 bolt connected with the back end of the sleeve head cover 81, and the sleeve head 8 part can slide along the axis of the light holder 7 relatively to the light holder 7.
  • the mirror 3 and convex lens 4 on the optical package are fixed inside the sleeve head cover 81 through a ring 83.
  • the installation socket 1 is fixed and connected at the front end of the light holder 7.
  • the sleeve head cover 81 leads the mirror 3 and convex lens 4 to slide relatively to the light holder 7, thus changing the relative distance between the light source 2 and the convex lens 4 & mirror 3.
  • the inner wall of the sleeve head socket 82 above is provided with 2 limit sliding grooves 84 along the axial direction, wherein the inner side ends of the two limit sliding grooves 84 are dead ends.
  • Two elastic connecting sections 14 extend from the circumference of the installation socket 1, wherein two limit flanges 12 are configured at the circumferences of the free ends of the two elastic connecting sections 14 respectively, an elastic limit block 13 is configured between the inner side of the connecting section 11 and the installation socket 1, and the two limit flanges 12 match with the two limit sliding grooves 84 respectively.
  • a heat emitting socket 9 is fixed at the inner side of the installation socket 1 in order to emit the heat generated by the LED light in time.
  • the limit flanges 12 are in the limit sliding grooves 84 and the sleeve head part 8 can move relative to the light holder 7 in the axial direction of the light holder 7, thus changing the relative distance between the light source 2 and the convex lens 4 & mirror 3.
  • FIG. 17 when the sleeve head part 8 is turned along direction B, the mismatch between the limit sliding grooves 84 and the limit flanges 12 occurs, causing the limit flanges 12 to be rolled out from the limit sliding grooves 84.
  • the inner wall of the sleeve head part 8 presses the limit flanges 12 inwards to deform the elastic connecting sections 14 and the elastic limit block 13 at the same time, so a great fraction force is generated between the outer circumference of the limit flanges 12 and the inner wall of the sleeve head part 8, thus fixing the relative positions of the sleeve head part 8 and the installation socket 1, and further fixing the relative positions of the light source and the convex lens 4.
  • the elastic limit block 13 above has an assistant effect on the elastic connecting sections 14, thus ensuring that the elastic connecting sections 14 will not break down because of over fatigue under the condition of long-term deformation.
  • two limit plates 15 corresponding to the free ends of the two elastic connecting sections 14 respectively are configured on the installation socket 1, and more specifically, the free ends of the elastic connecting sections are between the limit plates 15 and the main body of the installation socket 1.
  • the elastic locking structure above can be omitted with the sleeve head part sleeved at the front end of the light holder directly.
  • internal threads and external threads can be configured on the inner surface of the sleeve head part and the outer surface of the light holder at the front end respectively in the present invention, through which the sleeve head part is bolt-connected at the front end of the light holder. Therefore, when turning the sleeve head part, the axial displacement between the light holder and the sleeve head part can be changed through the mutual matching between the threads, thus the axial displacement between the convex lens & mirror and the light source can be changed.
  • the convex lens above can be colored and the color can be adjusted according to particular using environments, for example purple can be used to distinguish false from the genuine (such as currency detection), yellow capable of improving penetrating power can be used as vehicle frog lights, the blue convex lens will emit dark black when glaring on red substances and can be used to identify bloodstains at night, since the light-sensitive eye cells are sensitive to the blue-green short wavelength light, it can realize an eye-catching effect when used at night.
  • the red light capable of protecting the night visual function of human eyes effectively is suitable for viewing maps at night.
  • inverted characters or brand logos can be carved at the bottom of the reflection surface f1 of the mirror 3 above and the projections of the characters and logos on the cross section of the convex lens 4 shall be ensured to locate on the inner side of the edge of the convex lens 4. In this way, the characters and brand logos can be displayed on the shadow presented by Projection Imaging Principle. It is certain that, as shown in FIG. 21 , erected brand logos can also be carved on the reflection surface f2 and the outer end surface of the installation depression 11. In the unused state, the magnified images of the characters and logos can be seen from the front end of the sleeve head part of the torch through the convex lens 4, thus popularizing the product brand.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (18)

  1. Boîtier optique amélioré, comprenant une source lumineuse (2), une douille d'installation (1), un miroir (3) et une lentille convexe (4), caractérisé en ce qu'au moins une partie de la projection de la surface de réflexion du miroir (3), sur sa section axiale, présente une forme parabolique, le miroir (3) et la lentille convexe (4) ayant les mêmes axes, en ce qu'un creux d'installation (11) est défini à l'extrémité avant du boîtier optique, dans lequel la source lumineuse (2) est configurée dans le creux d'installation (11), le point d'émission de la source lumineuse (2) se trouve sur l'axe de la lentille convexe (4) et la circonférence du creux d'installation (11) est formée de manière à être une surface de réflexion (f2) capable de réfléchir la lumière émise par la partie inférieure de la source lumineuse (2), un support (5) pouvant être pénétré par la lumière, intégré à la lentille convexe (4), est configuré entre la circonférence extérieure de la lentille convexe (4) et la partie d'extrémité supérieure du miroir (3), et une plaque de connexion (41) plane et droite pouvant être pénétrée par la lumière est intégrée entre la circonférence de la lentille convexe (4) et le support (5) et est utilisée comme section tampon entre la lentille convexe (4) et le support (5).
  2. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la douille d'installation (1) peut se déplacer dans la direction axiale de la lentille convexe (4).
  3. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la source lumineuse (2) est une source lumineuse ponctuelle, en ce que les foyers de la lentille convexe (4) et du miroir (3) coïncident l'un avec l'autre et en ce que le point d'émission de la source lumineuse (2) et le foyer du miroir (3) coïncident l'un avec l'autre lorsque la douille d'installation (1) se déplace vers l'espacement maximum par rapport à la lentille convexe (4).
  4. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la source lumineuse (2) est une source lumineuse de surface et en ce que les foyers de la lentille convexe (4) et du miroir (3) ont une distance de décalage horizontale non supérieure à 1 mm.
  5. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la surface de réflexion est une surface inclinée, ou en ce qu'au moins une partie de la projection de la surface de réflexion sur la section axiale du miroir (3) présente une forme parabolique.
  6. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la partie supérieure de la source lumineuse (2) se trouve sur la face intérieure de la surface d'extrémité extérieure du creux d'installation (11), ou en ce que la partie supérieure de la source lumineuse (2) se trouve au même niveau que la surface d'extrémité extérieure du creux d'installation (11).
  7. Boîtier optique amélioré selon la revendication 6, caractérisé en ce que la source lumineuse (2) est une lumière à LED, en ce qu'un trou traversant adapté à la partie inférieure de la lumière à LED est configuré dans la partie inférieure du creux d'installation (11) sur la face intérieure et en ce que les axes du trou traversant et de la lentille convexe (4) partagent la même droite.
  8. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que les surfaces supérieure et/ou inférieure du support (5) présente/présentent une forme d'arc.
  9. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que le support (5) est un boîtier conique, en ce que l'angle entre les deux côtés de sa section transversale est supérieur à 85 degrés et en ce que l'angle entre la direction de prolongement du support et la section transversale de la lentille convexe (4) est égal à 30-50 degrés.
  10. Boîtier amélioré selon la revendication 1, caractérisé en ce que la surface de réflexion (f1) du miroir (3) présente un échelon (31) et en ce que les projections de la surface de réflexion, sur la section se trouvant dans l'axe du miroir (3), des deux côtés de l'échelon, présentent une forme parabolique.
  11. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la surface d'incidence de la lumière de la lentille convexe (4) est une surface de Fresnel.
  12. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que les positions de la lentille convexe (4) et du miroir (3) sont fixes l'une par rapport à l'autre.
  13. Boîtier optique amélioré selon la revendication 1, caractérisé en ce que la lentille convexe (4) peut se déplacer par rapport au miroir (3) le long de son axe.
  14. Lampe torche comprenant le boîtier optique selon la revendication 1, comprenant une source lumineuse (2), une douille d'installation (1), un miroir (3), une lentille convexe (4), un support de lumière (7) et une partie de tête de manchon (8), caractérisée en ce qu'au moins une partie de la projection de la surface de réflexion du miroir (3), sur sa section axiale, présente une forme parabolique, en ce que le miroir (3) et la lentille convexe (4) présentent les mêmes axes, en ce que la douille d'installation (1) peut se déplacer dans la direction axiale de la lentille convexe (4) et en ce qu'un creux d'installation (11) est défini au niveau de l'extrémité avant du boîtier optique, en ce que la source lumineuse (2) est configurée dans le creux d'installation (11), en ce que le point d'émission de la source lumineuse (2) se trouve sur l'axe de la lentille convexe (4) et en ce que la circonférence du creux d'installation (11) est formée de manière à être une surface de réflexion capable de réfléchir la lumière émise par la partie inférieure de la source lumineuse (2), en ce que la partie de tête de manchon (8) est emmanchée à l'extrémité avant du support de lumière (7) et peut coulisser dans la direction axiale du support de lumière (7), en ce que le miroir (3) et la lentille convexe (4) sont installés à l'intérieur de la partie de tête de manchon (8) et en ce que la douille d'installation (1) est fixée et est reliée à l'extrémité avant du support de lumière (7).
  15. Lampe torche selon la revendication 14, caractérisée en ce qu'une rainure de coulissement de limitation (84) est configurée sur la surface intérieure de la tête de manchon (8) dans sa direction axiale, dans laquelle la face intérieure de la rainure de coulissement de limitation est une extrémité borgne et en ce qu'un dispositif de fixation élastique adapté à la rainure de coulissement de limitation de position est configuré sur la circonférence de la douille d'installation (1).
  16. Lampe torche selon la revendication 15, caractérisée en ce que le dispositif de fixation élastique comprend une section de raccordement élastique (14) s'étendant depuis le bord de la douille d'installation (1), et en ce qu'une bride de limitation (12) est intégrée sur le bord extérieur de l'extrémité libre de la section de raccordement élastique, dans laquelle un bloc de limitation élastique (13) est disposé entre la section de raccordement élastique et la douille d'installation (1).
  17. Lampe torche selon la revendication 16, caractérisée en ce qu'une plaque de limitation (15) est montée sur la douille d'installation (1) et en ce que l'extrémité libre de la section de raccordement élastique est limitée entre le bloc de limitation et le corps principal de la douille d'installation (1).
  18. Lampe torche comportant le boîtier optique selon la revendication 1, comprenant une source lumineuse (2), une douille d'installation (1), un miroir (3), une lentille convexe (4), un support de lumière (7) et une partie de tête de manchon (8), caractérisée en ce qu'au moins une partie de la projection de la surface de réflexion du miroir (3), sur sa section axiale, présente une forme parabolique, en ce que les axes du miroir (3) et de la lentille convexe (4) partagent la même droite, en ce que la douille d'installation (1) peut se déplacer dans la direction axiale de la lentille convexe (4) et en ce qu'un creux d'installation (11) est défini au niveau de l'extrémité avant de la douille d'installation (1), dans laquelle la source lumineuse (2) est configurée dans le creux d'installation (11), le point d'émission de la source lumineuse (2) se trouve sur l'axe de la lentille convexe (4) et le bord du creux d'installation (11) est formé de manière à être une surface de réflexion capable de réfléchir la lumière émise par la partie inférieure de la source lumineuse, la surface extérieure du support de lumière (7) est munie de filets externes au niveau de l'extrémité avant, et la surface intérieure de la partie de tête de manchon (8) est munie de filets internes adaptés aux filets externes, dans laquelle le miroir (3) et la lentille convexe (4) sont montés dans la partie de tête de manchon (8) et la douille d'installation (1) est fixée et reliée à l'extrémité avant du support de lumière (7).
EP12156444.7A 2011-09-26 2012-02-22 Unité optique améliorée et torche dotée d'une telle unité Not-in-force EP2573452B1 (fr)

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CN2011203645359U CN202253393U (zh) 2011-07-25 2011-09-26 改良光学组套以及具有该光学组套的手电筒

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US9416937B2 (en) * 2012-06-06 2016-08-16 Coast Cutlery Co. Thin profile lens for flashlight
US9435515B2 (en) 2014-01-31 2016-09-06 Energizer Brands, Llc Near-field lens with convex hyperbolic surface
FR3098279B1 (fr) * 2019-07-01 2021-09-03 Valeo Vision Ensemble de projection de véhicule automobile et Procédé de réglage dudit ensemble de projection

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WO2002014738A1 (fr) * 2000-08-11 2002-02-21 The Brinkmann Corporation Lampe de poche a diode electroluminescente
EP2290421A1 (fr) * 2009-08-24 2011-03-02 Phoenix Electric Co., Ltd. Dispositif d'émission de lumière

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US4965488A (en) * 1989-03-27 1990-10-23 Bachir Hihi Light-source multiplication device
JP2004259541A (ja) * 2003-02-25 2004-09-16 Cateye Co Ltd 照明器具
JP4541290B2 (ja) * 2005-12-07 2010-09-08 株式会社小糸製作所 車両用コーナリングランプ
KR20100101756A (ko) * 2009-03-10 2010-09-20 주식회사 에이텍 건전지 홀더 및 이를 갖는 손전등
CN201819153U (zh) * 2010-07-27 2011-05-04 叶秀敏 多功能光学组套
CN202253393U (zh) * 2011-07-25 2012-05-30 阳西星际科技有限公司 改良光学组套以及具有该光学组套的手电筒

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Publication number Priority date Publication date Assignee Title
GB2346207A (en) * 1999-01-21 2000-08-02 Koito Mfg Co Ltd Vehicle indicator lamp reflector
WO2002014738A1 (fr) * 2000-08-11 2002-02-21 The Brinkmann Corporation Lampe de poche a diode electroluminescente
EP2290421A1 (fr) * 2009-08-24 2011-03-02 Phoenix Electric Co., Ltd. Dispositif d'émission de lumière

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