Multi-functional front headlight on light diodes

FIELD: machine building.

SUBSTANCE: to obtain separate lights of front multi-functional headlight (MFH) there are used narrow-degree light diodes with double scattering angle for white light (lower beam - 2Θ0.5=(2±0.5)°, 2Θ0.01=(3±0.5) ° and upper beam 2Θ0.5=4-8°), of short wave IF-radiation (total blackout - blanking) of blue, blue-green and yellow light (partial blackout - 2Θ0.5=2-7°). Light distribution of the head light is formed with lens diffusers and/or prismatic elements simultaneously corresponding to protective glasses of each of a group of light diodes, or is achieved with turn of optical axes of light diodes. At output of radiation of partial blackout light diodes there can be installed a light screening device made in form of a volume cavity, for example, in form of a truncated parallelepiped consisting of two zones: light diodes directionally radiating through a narrow light optical gap into the second zone (into a low hemisphere) for lightning road surface are placed in the first zone. Light diodes can be connected to electronic inverters and can be controlled with autonomous remote control.

EFFECT: raised efficiency of light blackout, simplified design, reduced cost and power expenditures.

5 cl, 10 dwg, 1 tbl

 

The invention relates to lighting technology, in particular to lighting fixtures - lights multifunctional light-emitting diodes (LEDs) (including svetomaskirovochnyh functions)that are installed on vehicles. Also these lights generate white light near and far light, satisfying the standards [1], blue (blue-green, yellow) radiation partial masking dimmable (partial occlusion), infrared (IR) radiation in the wavelength range of 800-900 nm - full camouflage blackout [2]. When the device is in camouflage mode headlight generates a narrow beam of radiation (2°-7°) in the vertical plane and a wide beam (20°- 60°) in the horizontal plane.

Known headlight [3] for multi-color lighting, comprising a housing with assembled therein a source of light as incandescent bulbs, colored light filters and electro-mechanical device that changes the position of filters.

Disadvantages of analogue due to the low efficiency, structural complexity and insecurity partial blackout.

Known headlight [4] svetomaskirovochnyh nozzle, comprising a housing with assembled it paraboloid reflector, the focus of which is equipped with incandescent lamp, diffuser overlying the outlet lights. Sutomiscica nozzle mouth is attached to the output hole and represents the cover and the hood (svetomaskirovochnyh device YSC), with a long horizontal slits, covered with blue (blue-green, yellow) filter to filter the output masking radiation.

Disadvantages of analogue associated with low efficiency incandescent lamp, large radiation losses on the filter and on the headlight cover, lack of versatility, inability remote control modes blackout, because of the required manual pivoting of the cover to switch camouflage radiation to primary radiation of the lights.

Known headlight [5], which contains the basic and additional optical unit on the LEDs that generate white, yellow, or near-infrared radiation with a narrow and wide beam, respectively, and svetomaskirovochnyh nozzle with hood, paired with one or more parallel between the groups of LEDs (in the form of lines) on the blue LEDs, blue or blue-green emission with the optical axis oriented at an angle within 2°-5° below the horizontal. Group of LEDs is connected to the electronic converters or directly to the mains supply with the possibility of Autonomous remote turn-on and functioning. Group DM is made in the form of extended polygonal PCB with LEDs. The LEDs of the main module is blocked by a Fresnel lens, in okuse each cell which has luminous body of led. Protective glass in the prototype covers all the lights of the headlights.

The disadvantages of the prototype due to serious mistakes in the construction of optical circuits of separate lights fwz, leading to failure of the desired light distribution of the headlights, and the complexity of its design and underestimate the efficiency of the individual lights of the headlights.

In particular, an optical module on the white LEDs (yellow) radiation is proposed to implement the DM with the scattering angle 2Θ0,5=25-30°. Deformation KCC this fire can be carried out with the help of Fresnel lenses. If this is not specified the nature of the KCC this part of the fire at the output. However, it is possible to assert a priori that such a building fire does not implement the requirements of [1], creating a large loss of radiation in the Fresnel lens. Additional led modules to this fire, though, and provide a wider distribution of light power (up to 30°), implemented uneconomical, since more than 50% of their radiation is practically not working (care radiation in the upper hemisphere, which is not permitted by rules [1]).

In the prototype, there is no indication on the implementation of the dipped beam headlights with the most complex KCC and still unrealized by the Board of Directors according to the requirements [1].

In the prototype infrared radiation (camouflage fire full dimming) is implemented similarly to the emission of white (yellow) fire fwz with the same disadvantages: extremely neeko ominae the use of radiation DM with 2Θ 0,5=25-30°.

In the prototype masking the fire of partial blackout fwz is implemented by LEDs emitting blue, blue and blue-green light with a scattering angle 2Θ0,5=5-6°, turning them into the lower hemisphere of the angle of 2-5°and the reversal of the optical axes of the LEDs on the fixed angles (2.5°, 5°, 7.5° and 10°, 12.5°) in the horizontal plane. Restriction of emission of incomplete fire burning in the upper hemisphere by using SMU. Figure baffle in the hood provides at least one horizontal slot of the output radiation. This solution has several drawbacks: first, the hood has a very low efficiency, which forces you to take a lot of DM seems high power (from the description - not less than 20 units), and this leads to overheating and cost of products; secondly, DM mounted on a circuit Board such form (curved), which are difficult to manufacture; thirdly, the hood has a complicated form;

fourthly, turning parts SD fire partial blackout specified in the description of the invention, does not provide the necessary KCC requires highly accurate alignment and more scography DM (than when using secondary optics), to ensure the necessary uniformity of light distribution;

fifthly, the light hole lights overlaps a single glass, which will the be a blue led, when turning on the lights partial masking, the diffuse scattering will be illuminated part of the glass not covered by the hood, which will result in a complete damascenone.

The above disadvantages largely eliminated in our proposed designs. The technical result of the invention is to improve the effectiveness of the blackout, simplifying the design, reducing the cost and energy products, as well as increased efficiency of the optical system, improve reliability, expand the functionality of the lights.

The technical result is achieved by the fact that the headlight head multifunction (fwz) for vehicles in light-emitting diodes (LEDs) in the form of a housing that contains the main module of the DM white, yellow, or short-wave infrared radiation. Part of the DM overlapped mesh Fresnel lens with a direct bearing layer, and optionally mounted led groups (lines) with blue, blue-blue, blue-green or yellow rays oriented at angles of 0-7° below the horizontal plane associated with located on the headlight svetomaskirovochnyh device with at least one horizontal slit and the inverter mains supply with remote inclusion. In the spotlight are used uzkorulonnye LEDs with double scattering angle to be the CSOs light (fog light - 2Θ0,5=(2±0,5)°, 2Θ0,01=(3±0,5)° and distant light 2Θ0,5=4-8°), short-wave infrared radiation (total blackout), blue, blue-green and yellow light (partial blackout) 2Θ0,5=2-7°, and the light distribution of the headlamp is formed of a cylindrical lens diffuser and (or) prismatic elements that are both protective glass each or groups of LEDs, as well as the orientation (rotation) of the optical axes of the LEDs in the vertical and horizontal planes. The group DM svetomaskirovochnyh lights partial blackout is set svetomaskirovochnyh device, eliminating the radiation of this group MD and diffuser each DM (or safety glass) in the upper hemisphere above 2-6°.

For the formation of fire full dimming each or group IR LEDs turned to the horizon at an angle of 1.5-3° and covered with cylindrical lenses, scattering radiation of the LEDs in the horizontal plane at an angle of 20-60 degrees.

In the partial lights dimming, the optical axis of the LEDs are deployed in the horizontal plane at angles of 0°-20°, and (or) on each (or group) SD set lens diffuser, scattering the radiation at 5°-10°.

The lights in the middle of the white light optical axis of the LEDs are deployed in a vertical plane at angles from 0° to 5 is, and the emission part of the led deploy at an angle of 15° with the rotation of the cylindrical lens of the lens.

Svetomaskirovochnyh the device is made in the form of a volume of the cavity, for example, a truncated parallelepiped, without the bottom face situated opposite groups DM with radiation in the blue, blue-green or yellow range of the spectrum, directed opening in the lower hemisphere for lighting road surface.

This is accomplished by using scography DM (s), the radiation of which extends in the horizontal plane (to create the required KCC and high uniformity of illumination of the road) using a cylindrical lens (or lenses). In some lights the deformation of the CMP is carried out by rotating the axes of the DM (or modules). The final correction masking lights is performed using a device that limits the radiation in the upper hemisphere is not higher than 6°, and in the white middle light - turning DM (DM) in two mutually perpendicular planes, providing a distribution in accordance with [1].

The technical result is also achieved by the fact that the case fwz on CD made in the form of universal radiator to provide high heat transfer and svetomaskirovochnyh partial shading (using SD with the emission of blue, blue-C is Lenovo or yellow color) is provided by the radiation direction of the BOD, bypassing the main protective glass lights.

The most preferred embodiment of the device of the present invention examined the drawings and plots the lighting dim and distant light.

Figure 1. Headlight head multifunction led. Axonometric (dimitrieska rectangular) projection depicted indicating the sections A-a, b-b and C-C.

Figure 2. Sections A-a and b-In scography DM (in vertical and horizontal planes, respectively).

Figure 3 (a, b). The arrangement of the cylindrical lenses on CD.

Figure 4. Installation of prisms on a CD.

Figure 5. The distribution of the light shield light from the middle fwz at a distance of 25 meters

6. The distribution of the light shield from the beam fwz at a distance of 25 meters

7. The section C-C svetomaskirovochnyh device partial blackout.

Fig. Svetomaskirovochnyh unit (SMU).

Fig.9. Example fwz: white lights on the halogen incandescent lamp, and svetomaskirovochnyh - CD.

Figure 10. Example fwz (svetomaskirovochnyh with IR and a blue led) variant with two optically separated scatterers.

A sample implementation of multifunctional headlamp head is shown in figure 1. The headlight is a case-radiator (1), running SD with tight thermal contact with the housing. In the case of a radiator 1 posted by SD for the formation of white fire, the near and far light 2, svetomaskirovochnyh (partial - 3 and full - 4 svetomaskirovochnyh dimmable). The light hole lights overlaps the main protective glass 5, hermetically mounted on the perimeter - 6, and the light hole to exit radiation, providing a partial darkening covered by a separate, protective glass, optically isolated from the base of the glass, to keep the output of blue light due to the scattered radiation from the glass. Middle fire lights is provided by LEDs (DM)-2 with I0=5000 KD, 2Θ0,5=(2±0,5)° and 2Θ0,01=(3±0,5)°, and power consumption ~1.5W. Such a narrow distribution of DM need not to Shine in zone III and point B50L [1]. To create the desired light distribution [1] LEDs beam takes place in two planes (horizontal plane at an angle α=0-5° and a vertical plane at an angle β=0-5°), according to figure 2, which shows a cross-section schraufnagel SD. With the aim of creating the necessary uniformity of illumination in the horizontal plane is proposed installation on each individual led of the scattering cylindrical lens 9 (see figure 3), while the emission part of the led turns at an angle around its optical axis at 15° clockwise rotation of the lens is a cylindrical lens from position 9 to position 10 (see figa and 3b). Rasbora the radiation DM also implemented using prism 11, set the output radiation DM, see figure 4. The distribution of illuminance (Lux) of the shield 12 from the middle of the light fwz, remote from it at a distance of 25 m, is given in figure 5.

Distant light is provided by DM-2 with I0=2000 CD, 2Θ0,5=4-8° (figure 1). The individual LEDs are turned at different angles in the horizontal plane (up to ±12°) and vertical plane (up to 2° down) to ensure the best fit light distribution of the headlights GOST [1]. The rotation is performed, as shown in figure 2 or figure 4. Plot of illuminance (Lux)generated by distant light fwz presented on the shield 13 that is remote from the lights at 25 m, is given in Fig.6.

Group DM (or modules) of the near and far light, but also LED IR full dimming overlap the protective glass 5 (figure 1). LEDs partial blackout overlap of individual protective glass (to reduce the area of the outlet of the partial lights dimming to improve blackout lights partial blackout).

To ensure the best visibility at a distance of 25-50 m from the car LEDs are fully dimmable turn down to the horizon at an angle of 1.5°-3°.

Fire partial blackout implemented on a blue (blue-green and yellow) DM-3 (figure 1) with I0=300 KD, 2Θ0,5=2-7° and power consumption ~1.2W. The desired light distribution is achieved by chief is the DM in a horizontal plane at an angle (2-7°C) or using a diffuser, the scattering radiation at 5°-10°.

Restriction of emission of a fire partial blackout in the vertical plane by using SMU, presented on Fig.7 and Fig. The device is made in the form of a volume of the cavity, for example, a truncated parallelepiped 8 (figure 1 and Fig.7 and 8)consisting of two zones 14 and 15 without the bottom face in the second zone. In zone 14 posted by group DM-3 with emission in the blue, blue-green or yellow light, directionally extending through the slot in zone 15. While the slit 16 in the first zone 14 is blocked prismatic cylindrical optics 7 (7)forming the radiation DM (module) in the horizontal plane (or cover glass), the second zone of the device 15 restricts the emergent radiation in the upper hemisphere at an angle of not more than 6°; the choice of the geometry of the zone 15 is not dictated by the radiation DM (module), and the lower part of the optics 17 (safety glass), as shown in Fig.7.

Mount SMU 8 is in the body of the headlamp 1. Structurally, the area 14 SMU is located inside the housing 1 fwz under IR LED 4, in order to avoid exposure of the interior of the housing and exit scattered light DM-3 through the primary protective glass lights. Fire full dimming is implemented on the infrared LEDs 4 (DM-IC) (1) I0=3,5 W/cf, 2Θ0,5=2-7°. The expansion of the radiation angle of the lights full blackout in the horizontal plane assests is by using cylindrical lenses 7, 8 type of figures 3 and 4, with full angle scattering IR fire can reach 60°. You can use this group infrared lights device, limiting radiation in the upper hemisphere, the type proposed for partial lights blackout.

The optimal rotation angles of the optical axes of led lights full and partial blackout, providing the necessary spatial distribution of the radiation uzkoryadnyh DM, shown in table 1

0
Table 1
No DMDM with blue raysDM with IR-radiation
12341234
Angle Vert. up, hail4,54,54,54,50000
Angle Horiz., deg-8614-14-5514

Note. The angle of horizontal deviation (+) is measured to the right from the direction of transport, and (-) to the left.

Provided for the accommodation of white and svetomaskirovochnyh lights in a single package allows to reduce the consumption of materials and to reduce thermal heating of the DM, because not all LEDs are operating simultaneously.

Power to the lights is supplied from the auxiliary power supply (TRS)that are installed outside the housing fwz: in the cabin of the vehicle or under the hood.

The second example implementation of the present invention is fwz, in which white middle and far light is provided by commercially available light with the diameter of the light holes 136 mm at the base of the bulb 18. This headlight is mounted on the hood or on the radiator fwz. In the latter case, aligning all of the lights lights before installing fwz; General alignment FGM is performed using alignment radiator quotation screws.

Implementation of partial lights, and full dimming 19, 20 (figure 9) similar to the previous example (figure 1). The power lights comes from the TRS in the cab of the machine.

A third example is the fast design of multifunctional svetomaskirovochnyh lights on CD (see figure 10).

Headlight with a limited number of functions (Fig 10): only left svetomaskirovochnyh functions (partial and full dimming). The headlight is executed in the housing 21 with its overlying the hole of the two lens diffusers (radiation IR-SD 24 for the blue led 25), optically isolated between themselves, or instead of, the protective glass (in the case of discrete orientation DM in the horizontal plane), installed in the casing 26. DM with radiation partial blackout - 23 and full blackout 22 placed on the radiators. SMU 27 provides for partial blackout. Inside the body is placed a source of secondary power TRS 27, powered through the connector 29. The headlight is mounted in the engine compartment by means of the attachment and alignment of item 30.

LITERATURE

1. GOST R 41.20-99 "Uniform provisions concerning the approval of headlights with asymmetric lights dim light and (or) lights high beam, designed for use with halogen filament lamps (bulbs H4)".

2. The application of Germany No. 3837732 A1, CL F21 5/02, F21V 9/08. Publ. 10.05.90,

3. Headlight visible light with blackout FH. THE 37.003.749-76.

4. RF patent №2202731, CL F21V 5/00, publ. 20.04.2004,, bull. No. 11.

5. Patent number RU 2266466 C1, class F21S 8/10, "Sutomiscica spotlight".

1. Headlight head multifunctional the traveler for vehicles comprising a housing, a module with LEDs with white, short-wave infrared radiation, blue, blue, blue-green or yellow rays, and some LEDs covered mesh Fresnel lens with a direct bearing layer, svetomaskirovochnyh device with at least one horizontal slit and the inverter mains supply with remote switching, characterized in that for forming the middle of the white light used uzkorulonnye white LEDs with double scattering angle is 2Θ0,5=(2±0,5)°, 2Θ0,01=(3±0,5)°, to form fire white light far - 2Θ0,5=4-8°, to form a complete blackout use LEDs short-wave infrared radiation, and for the formation of a partial blackout use uzkorulonnye LEDs blue, blue-green and yellow light with double scattering angle 2Θ0,5=2-7°, the light distribution of the headlamp is formed of a cylindrical lens diffuser and/or prismatic elements that are both protective glass each led, or the rotation of the optical axes of the LEDs in the vertical and horizontal planes.

2. Multifunctional headlamp according to claim 1, characterized in that the formation of fire full dimming each or group IR LEDs turned to the horizon at an angle of 1.5-3° and blocked cilindri the mini-lens diffuser, the scattering radiation of the LEDs in the horizontal plane at an angle of 20-60 degrees.

3. Multifunctional headlamp according to claim 1, characterized in that the partial lights dimming the optical axis of the LEDs installed in the horizontal plane at angles of 0 to 20°and in the vertical plane at angles of 0-7°, or each led set cylindrical lens diffuser, scattering the radiation at 5-10°.

4. Multifunctional headlamp according to claim 1, characterized in that the formation of lights in the middle of the white light optical axis of the LEDs installed in vertical and horizontal planes at angles from 0° to 5°, and the emission part of the led deploy at an angle of 15° with the rotation of the cylindrical lens of the lens.

5. Multifunctional headlamp according to claim 1, characterized in that svetomaskirovochnyh the device is made in the form of a volume of the cavity, for example, a truncated parallelepiped, is located opposite the groups of LEDs with emission in the blue, blue-green or yellow wavelength range and is directed opening in the lower hemisphere for lighting road surface.



 

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20 cl, 8 dwg

FIELD: transport engineering; vehicle lights.

SUBSTANCE: invention can be used as rear light of vehicle. Proposed light has elongated body made in form of thin panel convex to suit outer surface of rear and side parts of vehicle. Panel encloses the surface and tightly adjoins to surface from rear and side. Light-emitting diodes installed on sections of light-emitting diode plate are used as light sources. Sections of plate have surface in form of end face covers. Light-emitting diodes are arranged inside panel so that central axes of their light fluxes are directed inside panel along surface of base. Light zones are arranged in horizontal, and spectrum of radiation of light-emitting diodes of light zones corresponds to some or other signal light and are divided by longitudinal partitions.

EFFECT: reduced power consumption, increased area of lighting surface and light distribution angle, improved reliability and strength of device.

14 cl, 14 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive assembly units and parts and can be used in, primarily, car rear-view mirrors the rear-view mirror antidazzling element consists of a substrate transparent in a visible spectrum with a metal-dielectric interference antidazzling coat featuring a reflection factor lower that 30% in the 600 to 700 nm wavelength range. The aforesaid coat is made up of four layers, i.e. dielectric, metal, dielectric, metal with reflectivity of at least 70% in the 450 to 500 nm range and no peak in the 450 to 700 nm range and integrated reflectivity of 40 to 45% in the 450 to 700 nm range.

EFFECT: mirror antidazzling element optical characteristics allowing for peculiarities of the retina light perception, higher accuracy of colour rendition of objected observed in antidazzling rear-view mirror.

6 dwg

FIELD: physics.

SUBSTANCE: alarm device has light sources, placed under transparent plafonds, attached at the edges of a frame on the roof of a vehicle. An acoustic unit is mounted at the centre of the frame separate from it. There is a switching device connected to the light sources, microphone and acoustic unit. The plafonds have a flat streamlined shape, and the light sources are in form of light-emitting diodes, divided into four zones, two in each plafond, and are fixed to a mounting rack with possibility of generating a light signal within the limits of a horizontal angle of view of 360° or 180° under condition of its visibility from the front or rear side of the vehicle. Each zone of light-emitting diodes is connected to the switching device with possibility of simultaneous or successive radiation of these zones. The microphone has indicators of the light signal mode. The light sources generate an intermittent light signal with given frequency, directed parallel the plane of motion of the vehicle, with angle of view of 360° or 180° in the horizontal plane on the front or rear side of the vehicle. The intermittent light signal is divided into four radiation zones by the switching device, forming right and left front and right and left rear radiation zones of the same or different colour in the direction of motion of the vehicle. Switching of the radiation of zones is controlled with possibility of simultaneous or successive radiation. The flashing modes of indicators on the microphone correspond to the light signal modes.

EFFECT: improved identification of field service vehicles in heavy traffic.

35 cl, 18 dwg

FIELD: automotive industry.

SUBSTANCE: mobile projector automated complex serves to illuminate controlled ground surface at ranges approximating to 5 km. Proposed complex comprises a vehicle representing all-wheel-drive truck with its body accommodating projector unit and secondary power supply and radio control units, as well as petro-electric generator. Truck cab accommodates crew commander station comprising CAC system unit, communication and data transmission system, remote control board and thermal vision display device of night driving system, with its camera arranged in truck bumper or radiator.

EFFECT: minor sizes, higher reliability, power savings and fast operation.

6 cl, 2 dwg

Automotive led lamp // 2398995

FIELD: transport.

SUBSTANCE: proposed LED lamp comprises reflector, diffuser and light source arranged in focal plane of said reflector. Reflector represents a part of parabolic cylinder that comprises a ridge and limited by two lateral surfaces on both sides. LED-based light source has light-emitting diodes arranged in a line on diffuser surface in focal plane of parabolic cylinder. Axes of symmetry of LED light fluxes are directed to wards reflector. Note here that reflector comprise flanges made on top and bottom edges of parabolic cylinder. Diffuser with LEDs is located in the plane passing along outer edges of said flanges. Proposed lamp comprises LED power supply incorporating frequency modulator with selected frequency clamp.

EFFECT: simple design, smaller sizes and higher reliability.

14 cl, 10 dwg

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