Optical element with formation of light

FIELD: lighting.

SUBSTANCE: light emitting device (20, 40, 50, 60, 701) comprises a light source (22, 44, 54, 64, 74) and a scattering element (24, 42, 52, 62, 72). The diffusing element (24, 42, 52, 62, 72) is made in three-dimensional form and is installed in front of the light source (22, 44, 54, 64, 74) in the direction of light output. Different areas (27a-27c) of the scattering element (24, 42, 52, 62, 72) have different optical characteristics, representing different geometric optical structures. Mentioned optical characteristics of the different areas (27a-27c) of the scattering element (24, 42, 52, 62, 72) are selected, depending on the respective distances of the respective areas (27a-27c) of the scattering element (24, 42, 52, 62, 72) source (22, 44, 54, 64, 74) of light.

EFFECT: dimension reduction with the function of scattering and shaping the beam.

12 cl, 11 dwg

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention relates to lighting engineering. The built-in lighting unit (1A, 1B, 1C, 1D, 1E) comprises optical arrangement (2, 3), the first light source (S1) to generate the first light beam (L1), the first collimator (C1) to guide the first light beam (L1) to the optical arrangement (2, 3); the second light source (S2) to generate the second light beam (L2), the second collimator (C2) to guide the second light beam (L2) to the optical arrangement (2, 3); at that the optical arrangement is realised so that it may manipulate the first and second light beams (L1, L2) generating the first outgoing light beam (BLO) and the second outgoing light beam (BHI) so that the first outgoing light beam (BLO) and the second outgoing light beam (BHI) are joined partially in overlay area (44) in projection plane (4) placed at a preset distance from the built-in lighting unit (1A, 1B, 1C, 1D, 1E). The invention also describes an automobile head lamp unit (12) that contains the built-in lighting unit (1A, 1B, 1C, 1D, 1E).

EFFECT: increased lighting efficiency of low-beam and high-beam light and increased safety for a driver.

13 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: invention refers to illumination engineering and is intended to form controlled image (10) of illuminated spots (11a-11b) on remote plane (3) of the projected image. Light-emitting system (1) includes a variety of individually controlled light-emitting devices (6a-6c) made in matrix (5) of light-emitting devices with pitch (PLS) of light-emitting devices, and optic system (7) arranged between matrix (5) of light-emitting devices and plane (3) of the projected image. Optic system (7) has the possibility of projecting the light emitted by matrix (5) of light-emitting devices onto plane (3) of the projected image in the form of projected matrix of illuminated spots (11a-11c) having pitch (Pspot) of the projected image, which exceeds pitch (PLS) of light-emitting devices.

EFFECT: improving luminous efficiency and compactness.

12 cl, 7 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), equipped with a base (41), a diffusing plate (43) mounted on the base, and a light source which illuminates the diffusing plate with light. The light source has a plurality of light-emitting modules (MJ) which include a light-emitting diode (22) which serves as a light-emitting element, and a divergent lens (24) covering the light-emitting diode. The light-emitting modules are placed on a grid on the base supporting the diffusing plate. Carrier pins (26) for mounting the diffusing plate are located on points on the base. The carrier pins are placed on sections of lines linking neighbouring pairs of light-emitting modules.

EFFECT: eliminating non-uniformity of luminance.

10 cl, 14 dwg

FIELD: electricity.

SUBSTANCE: lighting device 12 comprises multiple point sources 17 of light and a base 14, where point sources of light 17 are placed, which are classified into two or more colour ranges A, B and C, in accordance with light colours. Each colour range is defined by means of a square, each side of which has length equal to 0.01 in the colour schedule of light space of the International Lighting Commission 1931.

EFFECT: reproduction of light of practically even light.

26 cl, 15 dwg

FIELD: electricity.

SUBSTANCE: backlighting unit (49) for a display device (69) equipped with a liquid crystal display panel (59) comprises a base (41), a diffusing plate (43), supported by means of the base, and point sources of light, supported by means of mounting substrates (21), provided on the base. Point sources of light contain modules of light emission (MJ). Mounting substrates are arranged in the rectangular area (41a) suitable for location of mounting substrates in it and arranged on the base. Gaps at the borders between mounting substrates do not stretch in any direction along long sides and/or in direction along short sides of the rectangular area, in order to provide for the possibility to see the rectangular area from the edge to the edge.

EFFECT: achievement of homogeneity of reflection ratio.

16 cl

FIELD: electricity.

SUBSTANCE: light-source unit includes a light-emitting diode 17 serving as a light source, diffuser lens 19, reflective sheet 23 of the board and a limiter 27. The diffuser lens 19 is faced towards emitting surface 17a of light emitted by the light-emitting diode 17. The reflective sheet 23 of the board is placed so that it is faced towards surface of the diffuser lens 19 which is located closer to the light-emitting diode 17 and configured for the purpose of light reflection. The limiter 27 protrudes from the diffuser lens 19 in direction of reflective sheet 23 of the board and it limits mutual alignment between the diffuser lens 19 and reflective sheet 23 of the board.

EFFECT: removing irregularity of the light emitted from the diffuser lens.

32 cl, 29 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicle lighting equipment mounted outside and composed of multicellular head or tail lights. Proposed light source comprises case, diffuser and optical system. The latter comprises, at least, one unified optical module and optional built-in cell with appropriate cat's eye. Unified optical module allows the functions of single or combined light and is built around one-piece high-power LED with reflecting secondary optics composed of aspheric lens. Outer light-emitting surface of aspheric lens is composed of a set of 2nd-order surfaces with linear sizes commensurable with linear sizes of optical module.

EFFECT: expanded operating performances.

8 cl, 2 dwg

FIELD: lighting technology.

SUBSTANCE: according to the method, an elongated light guide is used, which has in at least one axial section a base and two lateral sides tapering from the base to the top, furthermore, the base of each axial section is positioned on the end face of the light guide. The light flux is sent from at least one directional light source to the end face of the light guide, and the angle between the light flux going from the source and the light guide's elongation is taken from such a range where the light flux undergoes a total internal reflection from the tapering sides at least once in at least one axial section of the light guide, and the light flux must come out of one of the tapering sides after at least one total internal reflection.

EFFECT: transforming light fluxes into one or many light fluxes of greater cross section; more even brightness; high efficiency light input-output.

20 cl, 11 dwg

FIELD: physics.

SUBSTANCE: observation system comprises floodlight with material arranged ahead of light emitting system and provided with fringe micro relief to diverge light beam in horizontal plane, said divergence exceeding two times that of source light beam inside light emitting system. Note here that said material does not in fact affect light beam divergence in vertical plane.

EFFECT: increased floodlight range, higher efficiency.

33 cl, 18 dwg

FIELD: physics.

SUBSTANCE: light-emitting device (10) has a light-emitting element (1) and an element (2) for controlling light emitted by the light-emitting element (1). The light flux control element (2) has (i) a light-receiving surface (2a) on which light emitted by the light-emitting element (1) falls, and (ii) a light-emitting surface (2b).

EFFECT: high uniformity of light intensity, low reflection coefficient due to Fresnel reflection, improved scattering characteristics.

13 cl, 21 dwg

Illuminating device // 2295667

FIELD: illumination.

SUBSTANCE: device comprises light source and light scattering screen made of a colored plastic. The light source is composed of one or several light-emitting diodes. The screen transmits at least 35% and reflects 15% when the wavelength of radiation emitted by the diode reaches a maximum.

EFFECT: reduced sizes and power consumption.

17 cl, 2 dwg

Illumination device // 2398996

FIELD: physics.

SUBSTANCE: illumination device has at least one light source and at least one diffuser. The diffuser consists of at least one scattering polymer element in whose transparent polymer mass there are transparent scattering bodies. The diffuser covers at least one or more light sources and is made in form an external housing component of the illumination device. The scattering bodies have a narrow Gaussian multimodal distribution.

EFFECT: simple design, fewer light sources required, more uniform illumination.

14 cl, 5 dwg

FIELD: physics.

SUBSTANCE: light-emitting device (10) has a light-emitting element (1) and an element (2) for controlling light emitted by the light-emitting element (1). The light flux control element (2) has (i) a light-receiving surface (2a) on which light emitted by the light-emitting element (1) falls, and (ii) a light-emitting surface (2b).

EFFECT: high uniformity of light intensity, low reflection coefficient due to Fresnel reflection, improved scattering characteristics.

13 cl, 21 dwg

FIELD: physics.

SUBSTANCE: observation system comprises floodlight with material arranged ahead of light emitting system and provided with fringe micro relief to diverge light beam in horizontal plane, said divergence exceeding two times that of source light beam inside light emitting system. Note here that said material does not in fact affect light beam divergence in vertical plane.

EFFECT: increased floodlight range, higher efficiency.

33 cl, 18 dwg

FIELD: lighting technology.

SUBSTANCE: according to the method, an elongated light guide is used, which has in at least one axial section a base and two lateral sides tapering from the base to the top, furthermore, the base of each axial section is positioned on the end face of the light guide. The light flux is sent from at least one directional light source to the end face of the light guide, and the angle between the light flux going from the source and the light guide's elongation is taken from such a range where the light flux undergoes a total internal reflection from the tapering sides at least once in at least one axial section of the light guide, and the light flux must come out of one of the tapering sides after at least one total internal reflection.

EFFECT: transforming light fluxes into one or many light fluxes of greater cross section; more even brightness; high efficiency light input-output.

20 cl, 11 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicle lighting equipment mounted outside and composed of multicellular head or tail lights. Proposed light source comprises case, diffuser and optical system. The latter comprises, at least, one unified optical module and optional built-in cell with appropriate cat's eye. Unified optical module allows the functions of single or combined light and is built around one-piece high-power LED with reflecting secondary optics composed of aspheric lens. Outer light-emitting surface of aspheric lens is composed of a set of 2nd-order surfaces with linear sizes commensurable with linear sizes of optical module.

EFFECT: expanded operating performances.

8 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: light-source unit includes a light-emitting diode 17 serving as a light source, diffuser lens 19, reflective sheet 23 of the board and a limiter 27. The diffuser lens 19 is faced towards emitting surface 17a of light emitted by the light-emitting diode 17. The reflective sheet 23 of the board is placed so that it is faced towards surface of the diffuser lens 19 which is located closer to the light-emitting diode 17 and configured for the purpose of light reflection. The limiter 27 protrudes from the diffuser lens 19 in direction of reflective sheet 23 of the board and it limits mutual alignment between the diffuser lens 19 and reflective sheet 23 of the board.

EFFECT: removing irregularity of the light emitted from the diffuser lens.

32 cl, 29 dwg

FIELD: electricity.

SUBSTANCE: backlighting unit (49) for a display device (69) equipped with a liquid crystal display panel (59) comprises a base (41), a diffusing plate (43), supported by means of the base, and point sources of light, supported by means of mounting substrates (21), provided on the base. Point sources of light contain modules of light emission (MJ). Mounting substrates are arranged in the rectangular area (41a) suitable for location of mounting substrates in it and arranged on the base. Gaps at the borders between mounting substrates do not stretch in any direction along long sides and/or in direction along short sides of the rectangular area, in order to provide for the possibility to see the rectangular area from the edge to the edge.

EFFECT: achievement of homogeneity of reflection ratio.

16 cl

FIELD: electricity.

SUBSTANCE: lighting device 12 comprises multiple point sources 17 of light and a base 14, where point sources of light 17 are placed, which are classified into two or more colour ranges A, B and C, in accordance with light colours. Each colour range is defined by means of a square, each side of which has length equal to 0.01 in the colour schedule of light space of the International Lighting Commission 1931.

EFFECT: reproduction of light of practically even light.

26 cl, 15 dwg

FIELD: physics.

SUBSTANCE: backlight unit (49) of a display device (69), having a liquid crystal display panel (59), equipped with a base (41), a diffusing plate (43) mounted on the base, and a light source which illuminates the diffusing plate with light. The light source has a plurality of light-emitting modules (MJ) which include a light-emitting diode (22) which serves as a light-emitting element, and a divergent lens (24) covering the light-emitting diode. The light-emitting modules are placed on a grid on the base supporting the diffusing plate. Carrier pins (26) for mounting the diffusing plate are located on points on the base. The carrier pins are placed on sections of lines linking neighbouring pairs of light-emitting modules.

EFFECT: eliminating non-uniformity of luminance.

10 cl, 14 dwg

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