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
  • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
  • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
  • F21V9/12—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light with liquid-filled chambers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
  • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
  • F21S41/135—Polarised
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
  • F21S41/28—Cover glass
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
  • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
  • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
  • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
  • F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
  • F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
  • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
  • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
  • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens

Definitions

• the present invention relates to a device for making objects visible in an aerosol according to the preamble of claim 1 and to a method for making objects visible in an aerosol according to the preamble of claim 12 and advantageous uses of the device or the method according to one of claims 18 to 22nd
• Such devices and methods currently consist of simple light sources which are directed onto objects which are in an aerosol, such as, for example, fog, in order to make these objects visible.
• an aerosol such as, for example, fog
• the light directed onto the object is strongly scattered by the floating particles in the aerosol, so that the object is usually only blurred or not visible at all.
• fog lights which are equipped with a special glass or plastic pane that emit the light at a larger angle than normal headlights, so that the suspended particles in the aerosol, which are in the vicinity of the headlights, are illuminated at a larger angle so that the viewer is not too much blinded by directly reflected light rays and can thus better recognize objects within the aerosol, such as fog.
• these headlights do not improve the penetration of the aerosol by the light emitted by the light source and thus also not improve the visibility in the aerosol or the sharpness of images of objects in the aerosol.
• an aerosol is understood to be air or another gas which has finely divided matter in the form of solids or liquids.
• the size of the suspended particles is between about 0.001 and 100 ⁇ m.
• aerosols are smoke, dust, haze or mist.
• the appearance of the nebula, in which corresponding objects are located is described in particular. It is therefore an aerosol that contains liquid suspended particles (droplets).
• the disadvantage of the known devices and methods for making objects visible in such an aerosol is on the one hand the strong scattering of light on the suspended matter particles and on the other hand the high absorption of light rays in the aerosol, so that the space in depth, i.e. at a certain distance from the light source, although it is illuminated or illuminated, but the light rays reflected from there do not reach the viewer and objects located there are therefore only poorly or not visible.
• the present invention is therefore based on the object of improving conventional devices and methods in such a way that that objects in aerosol, especially in fog, are more visible and can be viewed more clearly.
• the device according to the invention for making objects visible in an aerosol has a light source which illuminates the object which is located within the aerosol, such as, for example, fog. Between the light source and the object, or between the object and the viewer, there is a moving liquid flow which is penetrated by the light rays. By means of the moving liquid, the properties of the light rays are changed in such a way that objects and objects suddenly become visible in the aerosol and their outlines can be clearly recognized. It is a phenomenon.
• the moving liquid flow is advantageously located between the light source and the object, in particular in the vicinity of the light source, so that a large part of the light rays emitted by the light source first penetrate the moving liquid before they hit the object or objects through the aerosol.
• the aerosol has liquid suspended particles with a size of 0.001 to 100 ⁇ m and the suspended particles in the aerosol consist of the same substance as the moving liquid flow. The phenomenon has so far been tested on objects in the fog that were hit by light rays that previously penetrated a moving water stream.
• the moving liquid stream of water is advantageously conducted in front of the light source between translucent walls which extend essentially perpendicular to the light beams emitted by the light source and which advantageously have a variable spacing from one another. Since the light usually moves away from the light source in a rotationally symmetrical or spherical manner, two translucent walls through which the moving liquid stream moves are advantageously also spherically shaped at a distance from one another, or semicircular, bowl-shaped or even as flat plates.
• the translucent walls are advantageously made of glass or plastic. However, semi-permeable fabrics or textiles that are impermeable to liquids are also conceivable.
• the translucent walls are advantageously located in a housing, the housing having means for changing the variable distance, which is advantageously between 0.1 cm and several 10 cm, in particular between approximately 0.5 cm and approximately 5 cm.
• the liquid flow is thus moved through the two translucent walls located in front of the light source, the two translucent walls being connected to one another, for example, by means of an accordion-like housing or by means of accordion-like connecting walls, in order to keep the distance variable.
• the translucent walls are connected to each other in a liquid-tight manner and connected to a pump that pumps the liquid.
• the pump is advantageously connected to a liquid reservoir so that when the distance between the translucent walls is increased, liquid from the reservoir is fed into the liquid circuit and when the distance between the translucent walls is reduced, liquid is fed into the reservoir from the liquid circuit. This measure ensures that the entire space between the translucent walls is always filled with liquid and the light rays therefore penetrate the system in the sequence "translucent wall - liquid - translucent wall".
• the light is polarized when penetrating the moving liquid, for example when penetrating a water flow moving from bottom to top, and penetrates the in particular liquid suspended particles in the aerosol without being scattered or absorbed there. It is therefore assumed that the material or the substance of the liquid flow must be identical to the substance or the material of the suspended particles in the aerosol.
• the liquid flow can move, for example, a lamp between the double disc, which has corresponding means for moving the liquid flow.
• the light source, the translucent walls, the housing, the pump and the reservoir are advantageously integrated in a lamp which is connected to a power supply (battery or power supply) and which can then be used to make objects visible in the fog ,
• the method according to the invention for making objects visible in an aerosol, the object or the aerosol being illuminated by a light source uses a moving liquid stream which is moved between the light source and the object and / or between the object and the viewer.
• the liquid flow should advantageously be moved essentially perpendicular to the light rays of the light source. It has been shown in practice that a liquid flow which moves essentially from the bottom upwards and moves from the bottom upwards in front of a light source is particularly suitable for making objects visible in the fog, i.e. a stream of water that is moved against gravity. However, the same effects have occurred with water flows moving from top to bottom or water flows moving from left to right or transversely. What seems to be important, however, is the fact that the liquid flow is essentially perpendicular to the light rays.
• the process according to the invention advantageously uses water as the moving liquid stream, which apparently polarizes the light rays emitted by the light source in such a way that penetrate an aerosol, which has suspended particles consisting of water, in such a way that the light rays reflected from the object reach an observer essentially without being scattered. It is believed that the light rays are so polarized by the moving water that the light rays are no longer absorbed and / or scattered as much by the liquid suspended particles.
• a moving liquid stream of colored water in particular of water colored in one of the spectral colors, is also suitable for the present method and for the device according to the invention.
• Blue, green or red colored liquid seems to polarize the light better, so that objects in the fog are more visible.
• the "polarization effect” presumably occurs at the interfaces between the moving water flow and the translucent walls.
• this is only an attempt to explain the phenomenon here, since corresponding polarization effects could also occur in the moving water itself or in the moving liquid flow.
• the pressure and / or the speed of the moving liquid flow can be changed.
• Fog lights in particular come into consideration as advantageous uses of a device according to the present invention or a method according to the invention. Such fog lights can be used for example in motor vehicles or on ships.
• the device according to the invention is suitable as a street lamp, as a pocket lamp or as searchlight or warning lamp for e.g. airports.
• the water used as liquid can be treated with an anti-freeze to prevent freezing at low temperatures.
• Figure 1 shows the schematic representation of the present invention, without this has already been specified for one of the preferred uses.
• FIG. 1 schematically shows a light source 1 which emits a light beam 9a onto an object 3.
• the object 3 is located in an aerosol 4 such as fog, which has been shown schematically.
• an aerosol 4 such as fog, which has been shown schematically.
• both the device according to the invention and the object 3 will be located in the aerosol 4.
• the light beam 9a strikes the object 3 and is ideally reflected in the eye of a viewer 11 as a reflected light beam 9b.
• the aerosol 4 prevents the beam path shown in FIG. 1, which, however, is made possible by the present invention.
• the translucent walls 2a, 2b can be the double glass pane of a lamp. These are connected to one another by a housing 8, which in turn is only shown schematically in FIG. 1.
• the housing 8 enables the translucent walls 2a, 2b to be displaced essentially parallel to the light beam 9a, so that the distance d between the translucent walls 2a, 2b is variable.
• a line 7 is connected to the housing 8, which feeds liquid, in particular water, between the translucent walls 2a, 2b and takes it from there again, in particular at the other end, between the two translucent walls 2a, 2b.
• the line 7 is connected to a pump 6, which ensures the movement of the liquid flow.
• the pump 6 is connected to a liquid reservoir 5 in order to compensate for liquid differences with a changed distance d between the translucent walls 2a, 2b.
• water is moved between two glass panes spaced approximately 5 cm apart, the water circulating between the two glass panes using a simple water pump.
• the two glass panes are located in front of a conventional lamp, such as a car headlight, which throws light towards an object 3, such as another motor vehicle or a tree.
• the water is provided with an anti-freeze, which can also be colored to improve the above-described effect.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Chemical & Material Sciences (AREA)
• Crystallography & Structural Chemistry (AREA)
• Investigating Or Analysing Materials By Optical Means (AREA)
• Illuminated Signs And Luminous Advertising (AREA)
• External Artificial Organs (AREA)
• Nozzles (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Optical Radar Systems And Details Thereof (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

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• 2001
  • 2001-12-20 DE DE10162969A patent/DE10162969A1/de not_active Ceased
• 2002
  • 2002-09-24 EP EP02774643A patent/EP1456582B1/fr not_active Expired - Lifetime
  • 2002-09-24 AU AU2002340932A patent/AU2002340932A1/en not_active Abandoned
  • 2002-09-24 ES ES02774643T patent/ES2274101T3/es not_active Expired - Lifetime
  • 2002-09-24 DE DE50208364T patent/DE50208364D1/de not_active Expired - Lifetime
  • 2002-09-24 AT AT02774643T patent/ATE341738T1/de not_active IP Right Cessation
  • 2002-09-24 WO PCT/EP2002/010695 patent/WO2003054442A1/fr not_active Ceased
• 2007
  • 2007-11-07 US US11/979,734 patent/US20080135480A1/en not_active Abandoned

Non-Patent Citations (1)

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