JPH0215212Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to an improvement of a heat lamp used for indirect lighting in stores and the like.

<Conventional technology and its problems> For example, if you want to project a donut-shaped light ray pattern onto the ceiling surface of a store for indirect lighting,
Conventionally, a donut-shaped filter is interposed in the path of the light rays reflected from the reflector of the Atsuparite, and the desired light ray pattern is obtained by the filter. Therefore, special functional parts such as filters are required. As a result, the overall structure of the upper light is complicated and large, and the assembly work is also troublesome, leading to high costs.

<Means for Solving the Problems> The present invention is intended to improve these problems, and for this purpose, a hollow cylindrical fixture that is fixedly installed on the floor of a building is used as an Atsuparite. a main body, a substantially bowl-shaped reflector that expands upward and is fitted into the upper end of the opening of the device body, a holding plate for the socket that faces the bottom plate of the reflector from below, and a center of the reflector. A halogen lamp is installed vertically at a constant height from a socket located on the axis toward the inside of the reflector, and the retaining plate of the socket is screwed into the bottom plate of the reflector so that it can move forward and backward from below. The installation height of the halogen lamp can be adjusted by attaching the halogen lamp with an adjustment screw inserted therein, and by wrapping a compression coil spring interposed between the top and bottom of the bottom plate and the holding plate around the adjustment screw. On the other hand, the cross-sectional shape of the light reflecting surface of the reflecting plate is shaped by a parabola with an x-axis that intersects the central axis of the reflecting plate by a certain angle of approximately 30 to 60 degrees, and By integrally applying heat-resistant colored coatings of different colors to the light-reflecting surface as several layers above and below, the light rays of the halogen lamp reflected from the light-reflecting surface of the reflector plate can be directed to the ceiling of the building. , is characterized in that it is set to be projected onto an overall concentric donut shape with different colored colors.

<Example> Hereinafter, the specific structure of the present invention will be described in detail based on the illustrated example. FIGS. 1 to 6 show the upper light, 11 is a hollow cylindrical instrument body, A stud 13 with a ballast support fitting 12 is superimposed within the lower end of the opening and fixed by a bolt 14 and a nut 15. Then, using the bolt 14 and nut 15,
The main body 11 of the device is fixedly erected on the floor of the building. Note that the stand fittings used in this case are not shown.

Reference numeral 16 designates a support ring for a reflector which is also integrated into the upper end of the opening of the instrument main body 11 by welding, and has a step-shaped cross section in which the diameter of the opening changes from large to small. A is a generally bowl-shaped reflector plate, and a flange portion 17 projecting outward from the upper end of its large diameter opening is connected to the support ring 1.
It is placed on the stepped surface of No. 6 from above and is fixedly held by a decorative screw 18 passing through both.

Reference numeral 19 denotes a flange portion projecting inward from the lower end of the opening, which also has a small diameter, and a saucer-shaped bottom plate 20 is placed and fixed on this flange portion from above. 21 is a socket escape hole opened in the center of the bottom plate 20;
Reference numeral 22 denotes a holding plate for the socket 23, which is attached to the bottom plate 20 by a plurality of adjusting screws 24 screwed into the bottom plate 20 so as to be freely retractable from below.

In that case, between the top and bottom of the bottom plate 20 and the holding plate 22, the adjustment screw 24 has a compression coil spring 2.
5 is wrapped around the lamp so that the installation height of the halogen lamp 26 serving as the light source can be adjusted. It goes without saying that the lamp 26 is arranged and erected on the central axis Y-Y of the reflecting plate A. The wiring code is not shown.

The light rays emitted from the lamp 26 are reflected by the light reflecting surface 27 of the reflector A and projected onto the ceiling of the building, and the cross-sectional shape of the light reflecting surface 27 is particularly clear from FIG. It is shaped by a parabola with an x-axis X-X that intersects the central axis Y-Y of the reflector A itself at a constant angle θ of about 30 to 60 degrees. As shown in FIG. 6, after the light ray a from the lamp 26 is reflected, it intersects in an X-shape midway through the process until it reaches the ceiling surface, and the light rays reach the ceiling surface in a so-called donut shape. It is finally projected as M.

In that case, the constant band width w of the donut-shaped ray pattern M changes in size depending on the crossing angle θ. In the example shown, the angle θ is approximately 45
Although the angle is set at approximately 30 to 60 degrees, it can be freely adopted within the range of 30 to 60 degrees.

In other words, the mutual distance between the ceiling surface and the floor surface inside a building is considered to be almost constant for each type of building, but if the above angle θ is smaller than 30 degrees or larger than 60 degrees, The diameter d of the light ray pattern M projected onto the ceiling surface in a donut shape through the parabolic light reflecting surface 27 becomes too small or too large, resulting in poor lighting effects. This is the reason why it is limited to the above numerical range.

Light reflecting surface 2 of reflecting plate A shaped as above
7 is also integrally provided with a special heat-resistant colored film 28 having different colored colors in several upper and lower layers forming a band layer for each colored color. In other words, if we were to list three colors, there would be one specific color (yellow) in the upper position of the light reflecting surface 27, and a different color (red) in the same middle position. There is also a different color (green) in the lower position.
However, all of them are applied as concentric annular band layers, and such a colored coating 28 is actually applied by applying a heat-resistant dye to the light reflecting surface 27 after vacuum-depositing aluminum on the light reflecting surface 27. It can be easily formed by attaching.

<Effects of the invention> As described above, the Atsuparite according to the invention includes a hollow cylindrical appliance body 11 that is fixedly erected on the floor of a building, and a hollow cylindrical appliance body 11 that is fitted into the upper end of the opening of the appliance body 11. A nearly bowl-shaped reflector A that expands at the top; a holding plate 22 of a socket 23 facing the bottom plate 20 of the reflector A from below; and a socket located on the central axis Y-Y of the reflector A. 23, the halogen lamp 2 is vertically placed at a constant height toward the inside of the reflector A.
6, the holding plate 22 of the socket 23 is attached to the bottom plate 20 of the reflector A by an adjustment screw 24 screwed into the bottom plate 20 from below so as to be freely advanced and retracted, and between the top and bottom of the bottom plate 20 and the holding plate 22. The installation height of the halogen lamp 26 can be adjusted by winding the compression coil spring 25 interposed in the adjusting screw 24, and the cross-sectional shape of the light reflecting surface 27 of the reflecting plate A can be adjusted. , about 30~ with the above central axis Y-Y of the reflector A
The shape is formed by a parabola with the x-axis X-X intersecting at a constant angle θ of 60 degrees, and a heat-resistant colored film 28 of a different color is applied to the formed light-reflecting surface 27 in several steps above and below it. By integrally applying the layer, the light beam a of the halogen lamp 26 reflected from the light reflecting surface 27 of the reflecting plate A is projected onto the ceiling surface of the building in an overall concentric donut shape with different colored colors. Since the problem of the conventional technology mentioned at the beginning can be easily solved, there is no need to insert and install functional parts such as special filters, and the concentric donut shape with different colored colors can be easily solved. With the light ray pattern M, a significantly new lighting effect can be obtained.

That is, according to the configuration of the present invention, the light ray a reflected from the light reflecting surface 27 of the reflecting plate A shaped as a special parabola is projected onto the ceiling surface of the building as a donut-shaped light ray pattern M. Since heat-resistant colored coatings 28 of different colored colors are integrally applied to the light reflecting surface 27 as band layers in several layers above and below, the donut-shaped light ray pattern M can be formed from several different colors. It is displayed as a donut shape with a concentric superimposed band width W, and has the advantage that it can be used for indirect lighting on the ceiling of various stores to obtain a temporary decorative effect with a remarkable variety of interests.

Further, the concentric donut-shaped light ray pattern M is formed by the colored coating 2 applied to the light reflecting surface 27 of the reflecting plate A.
The 8 colored colors can be changed to different colors, and there is no need for intervening parts such as separate filters, so the entire device as an atsuppar light can be made extremely small and compact, and can be used for general purpose. It also has outstanding performance and mass productivity.
Moreover, since the colored coating 28 has heat resistance, the device itself is rational in terms of its structure and highly durable.

Furthermore, by moving the adjusting screw 24 forward and backward, the halogen lamp 26 is directed toward the inside of the reflector A.
The installation height of the light reflecting plate A can be adjusted, and the so-called focal point of the light reflecting surface 27 formed from the parabola will change. It becomes possible to change the diameter d of the colored light ray pattern M projected as a donut shape within a predetermined range, and from this point of view, the above-mentioned colored color can be changed. It can be said that this method is extremely useful in achieving decorative effects using lighting according to various stores and their purposes.

[Brief explanation of the drawing]

Figure 1 is a front view of the Atsupa light in the present invention, Figure 2 is a plan view, Figures 3 and 4 are enlarged sectional views taken along lines - and - in Figure 1, and Figure 5
The figure is an enlarged sectional view of the reflective plate, and FIG. 6 is an explanatory diagram of the state of use. 11...Lighting equipment body, 26...Lamp, 27
...Light reflecting surface, 28... Colored coating, A... Reflection plate, M... Light ray pattern, θ... Crossing angle, a... Light ray, d... Diameter, w... Band width.

Claims (1)

[Scope of Claim for Utility Model Registration] A hollow cylindrical appliance body 11 that is fixed and erected on the floor of a building, and an almost bowl-shaped reflector that expands upward and is fitted into the upper end of the opening of the appliance body 11. A plate A, a retaining plate 22 of a socket 23 facing the bottom plate 20 of the reflector A from below, and an inside of the reflector A from the socket 23 located on the central axis Y-Y of the reflector A. Halogen lamp 2 vertically placed at a constant installation height
6, the holding plate 22 of the socket 23 is attached to the bottom plate 20 of the reflector A by an adjustment screw 24 screwed into the bottom plate 20 from below so as to be freely advanced and retracted, and between the top and bottom of the bottom plate 20 and the holding plate 22. The installation height of the halogen lamp 26 can be adjusted by winding the compression coil spring 25 interposed in the adjusting screw 24, and the cross-sectional shape of the light reflecting surface 27 of the reflecting plate A can be adjusted. , about 30~ with the above central axis Y-Y of the reflector A
The shape is formed by a parabola with the x-axis X-X intersecting at a constant angle θ of 60 degrees, and a heat-resistant colored film 28 of a different color is applied to the formed light-reflecting surface 27 in several steps above and below it. By integrally applying the layer, the light beam a of the halogen lamp 26 reflected from the light reflecting surface 27 of the reflecting plate A is projected onto the ceiling surface of the building in an overall concentric donut shape with different colored colors. Atsupa light characterized by being set so as to