CN214369901U

CN214369901U - Lighting lamp

Info

Publication number: CN214369901U
Application number: CN202120465576.0U
Authority: CN
Inventors: 邹诚; 其他发明人请求不公开姓名
Original assignee: Supervision Laser Technology Suzhou Co ltd
Current assignee: Supervision Laser Technology Suzhou Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-10-08
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses an illumination lamp, including first light source group, the first anti-light cup that corresponds with first light source group, second light source group, anti-dazzling screen and lens unit. The lens unit comprises a first subarea positioned in the middle and second subareas positioned on two sides, wherein the first subarea and the second subarea have different focuses; the light emitted by the first light reflecting cup is projected onto the first partition, and the light emitted by the second light source group is projected onto the second partition. Through dividing into the first subregion in the middle of the lens unit and the second subregion that is located both sides, make the light that first light source group sent project first subregion, the light that second light source group sent projects the second subregion, can improve the utilization ratio of lens unit greatly, in addition, through the switching of control switch control first light source group and second light source group, thereby realize the switching of distance light and near light illumination, avoided adopting traditional mechanical light change mechanism not only to consume the energy and cause the problem of card machine easily.

Description

Lighting lamp

Technical Field

The utility model relates to the field of lighting technology, concretely relates to integrative illumination lamps and lanterns of far and near light.

Background

With the development of semiconductor technology, LED (Light Emitting Diode) Light sources have the advantages of high efficiency, energy saving, environmental protection, low cost, long service life, etc., and are gradually replacing traditional incandescent lamps and energy saving lamps, becoming a general illumination Light source.

The existing LED high-low beam integrated automobile headlamp generally comprises a low-beam LED light source module, a high-beam LED light source module, a light screen and a lens unit, light emitted by the low-beam LED light source module and the high-beam LED light source module is switched through the light screen, the light screen is usually made of an electromagnet, the electromagnet is adopted to consume electric power, energy is wasted, and a mechanical light changing mechanism easily causes faults such as card jamming. In addition, because the light that the short-distance beam LED light source module sent is through the reflection back of short-distance beam reflection of light cup, mainly incides the middle zone of lens unit, and the region of lens unit left and right sides does not make full use of, has reduced the utilization ratio of lens unit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the prior art, provide one kind can effectively improve illumination facula luminance and be convenient for switch over the illumination lamps and lanterns of far and near light beam again.

In order to solve the technical problem, the technical scheme of the utility model is that:

an illumination fixture comprising a first light source group, a first reflector cup corresponding to the first light source group, a second light source group, and a lens unit:

the first light source group emits illumination light beams, and the first light reflecting cup collects the illumination light beams and reflects and emits the illumination light beams along a specified direction;

the second light source group is positioned in front of the lens unit and does not block the illuminating light beams emitted by the first light source group;

the lens unit comprises a first partition in the middle and second partitions on two sides, and the first partition and the second partition have different focuses;

the light rays emitted by the first light reflecting cup are projected onto the first subarea, and the light rays emitted by the second light source group are projected onto the second subarea;

the light source module also comprises a control switch connected with the first light source group and the second light source group.

The light source module further comprises a light shielding member located between the first light source group and the lens unit along the light path, a reflection area and a light absorption area are arranged on one surface of the light shielding member, and light emitted by the first light reflecting cup is directly projected onto the first partition or is projected onto the first partition after being reflected by the reflection area of the light shielding member.

Furthermore, one side of the light shading part close to the lens unit is of an arc-shaped structure.

Further, the arc-shaped structure is a concave surface, and the top middle point of the concave surface close to one side of the lens unit corresponds to the focus of the first partition.

Further, the light absorbing region is located between the reflective region and the arc-shaped structure.

Further, the reflection area is rectangular or elliptical.

Further, a first lens is arranged in the first partition, a second lens is arranged in the second partition, and the diameters of the first lens and the second lens are different.

Further, the first lens and the second lens are integrally formed.

Furthermore, the number of the second partitions is two, the second partitions are symmetrically arranged relative to the first partitions, and each second partition corresponds to one second light source group.

Furthermore, the second light source group comprises a second LED light source and a spherical light reflecting bowl corresponding to the second LED light source, a light outlet is formed in the top of the spherical light reflecting bowl, and the second LED light source corresponds to the spherical center of the spherical light reflecting bowl.

The utility model provides an illumination lamp, including first light source group, the first anti-light cup that corresponds with first light source group, second light source group, anti-dazzling screen and lens unit. The second light source group is positioned in front of the lens unit and does not block the illuminating light beams emitted by the first light source group; the lens unit comprises a first partition in the middle and second partitions on two sides, and the first partition and the second partition have different focuses; the light emitted by the first light reflecting cup is projected onto the first partition, and the light emitted by the second light source group is projected onto the second partition. Through dividing into the first subregion in the middle of the lens unit and the second subregion that is located both sides, make the light that first light source group sent project first subregion, the light that second light source group sent projects the second subregion, can improve the utilization ratio of lens unit greatly, in addition, through the switching of control switch control first light source group and second light source group, thereby realize the switching of distance light and near light illumination, avoided adopting traditional mechanical light change mechanism not only to consume the energy and cause the problem of card machine easily.

Drawings

Fig. 1 and fig. 2 are schematic diagrams of optical path structures of an illumination lamp in the horizontal direction and the vertical direction in embodiment 1 of the present invention, respectively;

fig. 3 is a schematic view of a specific structure of the light-shielding member of the present invention;

fig. 4-5 are schematic diagrams of two specific structures of the reflective region and the light absorbing region of the present invention;

FIG. 6 is a schematic view of the illumination spots corresponding to the non-reflective region of the shielding member of the present invention;

FIG. 7 is a schematic view of the corresponding illumination spots when the shielding member has a reflection area;

fig. 8 is a schematic view of the optical path structure of the illumination lamp in the horizontal direction in embodiment 2 of the present invention.

Shown in the figure: 110. a first light source group; 120. a first reflective cup; 210. a second light source group; 220. a second LED light source; 230. a spherical light reflecting bowl; 231. a light outlet; 30. a light shielding member; 310. an arc-shaped structure; 320. low beam cut-off profile; 330. a reflective region; 340. a light absorbing region; 40. a lens unit; 410. a first lens; 420. a second lens.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1-2, the present invention provides a lighting device, which comprises a first light source group 110, a first reflective cup 120 corresponding to the first light source group 110, a second light source group 210 and a lens unit 40.

The first light source group 110 emits an illumination beam, and the first reflective cup 120 collects the illumination beam and reflects the illumination beam in a specific direction. The first light source group 110 may be an LED light source or a laser light source, or a combination of an LED light source and a laser light source, where the LED light source may be in a mode of an LED chip and a phosphor sheet, the laser light source may be in a mode of a laser diode or a semiconductor laser remotely exciting the phosphor sheet, if a laser light source is adopted, a light through hole needs to be formed in the first light reflecting cup 120, so that a laser beam emitted by the laser diode or the semiconductor laser is projected onto the phosphor sheet from the light through hole, if a mode of combining the LED light source and the laser light source is adopted, a laser beam emitted by the laser diode or the semiconductor laser and a light beam emitted by the LED chip are respectively projected onto two opposite surfaces of the phosphor sheet, and light rays excited by the phosphor sheet are projected onto the first light reflecting cup 120 and collected and then emitted along a designated direction (mainly along a lower direction in this embodiment).

The second light source group 210 is located in front of the lens unit 40 and does not block the illumination light beam emitted from the first light source group 110. The second light source group 210 may be an LED light source, which may be a pattern of LED chips and phosphor chips, or a laser light source, which may be a pattern of laser diodes or semiconductor lasers to remotely excite the phosphor chips, or a combination of LED light sources and laser light sources. The light beams emitted from the second light source group 210 are directly projected onto the lens unit 40.

As shown in fig. 1, the lens unit 40 includes a first partition in the middle and second partitions on both sides, the first partition and the second partition having different focal points; the light emitted from the first reflective cup 120 is projected onto the first partition, and the light emitted from the second light source set 210 is projected onto the second partition. Preferably, in this embodiment, two second partitions are disposed on the left and right sides (along the horizontal direction) of the first partition, the two second partitions are symmetrically disposed with respect to the first partition, the first partition and the second partition respectively include one lens, that is, the first partition is provided with the first lens 410, the second partition is provided with the second lens 420, and the diameters of the first lens 410 and the second lens 420 are different. In this embodiment, the first lens 410 is a lens with a diameter of 50mm and two cut-off portions at two sides, and has a size of 50mm in width from top to bottom and 30mm in width from left to right; in this embodiment, there are two second light source groups 210, which are respectively in one-to-one correspondence with the second partitions, and the light emitted from each second light source group 210 is projected onto the lenslets of the second partitions to be collimated and emitted, so as to form a high beam. The second light source group 210 and the second partition can make full use of the lens unit 40, and the problem that only the middle part of the lens unit 40 in the original LED car light is used is solved. The first lens 410 and the second lens 420 are integrally formed by glass or plastic and the like to form a conjoined lens combination, so that the cost is low and the use is simple and convenient. For convenience of description, in the present embodiment, the x-axis direction is defined as a horizontal direction, and the y-axis direction is defined as a vertical direction.

The lighting lamp further comprises a control switch (not shown in the figure) connected with the first light source group 110 and the second light source group 210, and the control switch controls the first light source group 110 and the second light source group 210 to be switched on and off, so that the switching between high beam light and low beam light is realized, and the problems that the traditional mechanical light changing mechanism consumes energy and is easy to cause jamming and the like are avoided.

As shown in fig. 3, the lighting fixture further includes a light shielding member 30 located between the first light source group 110 and the lens unit 40 along the light path, and a side of the light shielding member 30 close to the lens unit 40 is an arc structure 310, that is, a side of a cross section of the light shielding member 30 close to the lens unit 40 is a curve, and the illumination beam images the curve in a straight line at a distance through the lens unit 40, which does not affect the light pattern. In this embodiment, the arc-shaped structure 310 is concave, i.e. its cross section is concave.

The upper surface of the light shield 30 includes a low-beam cut-off line profile 320, and the illumination beam passes through the low-beam cut-off line profile 320 to form a low-beam pattern at a distance, such as including a 45 ° or 15 ° oblique line. The low beam cut-off line profile 320 in the present embodiment is formed through the surface of the light-shielding member 30 in the optical axis direction of the lens unit 40, and may be provided in a partial region of the light-shielding member 30 in the optical axis direction of the lens unit 40.

The upper surface of the light-shielding member 30 includes a reflection region 330 and a light absorption region 340, the reflection region 330 is distributed along the optical axis of the lens unit 40, the reflection region 330 is preferably a silver-plated reflection region, and may be another high-reflection material layer, light emitted from the first light source group 110 is firstly reflected by the first reflector cup 120, a portion of the light directly enters the lower half of the first sub-region of the lens unit 40, another portion of the light enters the light-shielding member 30, and the light is reflected by the light-shielding member 30 and enters the upper half of the first sub-region of the lens unit 40, and the two portions of light form a low beam together, so as to improve the central brightness of the illumination spot, as shown in fig. 6, a simulation diagram of the illumination spot without the reflection region 330 on the light-shielding member 30 is shown, the brightness is up to 65.6lx (lux), fig. 7 shows a simulation diagram of the illumination spot with the reflection region 330 on the light-shielding member 30, and the brightness is up to 135lx (lux), which is twice the maximum brightness in fig. 6, it can be seen that the center brightness of the illumination spot is greatly increased by the reflective region 330.

The upper surface of the light shielding member 30 further includes a light absorption region 340, and the light absorption region 340 is located on the optical axis of the lens unit 40, distributed along the edge of the arc-shaped structure 310, and is curve-overlapped with the edge of the arc-shaped structure 310 by a part of the boundary. The light absorption area 340 is used for absorbing light at the edge of the arc-shaped structure 310, avoiding stray light near the low-beam cut-off line and ensuring clear imaging of the low-beam cut-off line.

Preferably, the arc-shaped structure 310 is a concave structure, and in this embodiment, a middle point of a top of the concave structure near one side of the lens unit 40 corresponds to a focal point of the first partition in the lens unit 40, most of the light rays emitted from the reflective cup 20 converge near the focal point and are projected onto the lens unit 40 for collimation and emission, the more the light rays near the focal point, the brightest illumination spot is finally formed, and therefore, part of the light rays which cannot converge near the focal point are reflected by the reflective area 330 and then converge near the focal point, and finally exit through the first partition in the lens unit 40, and the brightness of the illumination spot is improved. In the present embodiment, the middle of the low-beam cut-off line is located near the focus of the lens unit 40, so that the imaging of the low-beam cut-off line can be ensured to be clearer, the low-beam cut-off line can penetrate through the upper surface of the light shielding member 30 along the optical axis direction, as shown in fig. 3, and can also be located in a partial region of the upper surface of the light shielding member 30 along the optical axis direction.

Preferably, the reflective regions 330 are symmetrically or asymmetrically distributed with respect to the optical axis of the lens unit 40, and may be rectangular, elliptical or other irregular shapes, as shown in fig. 4-5, which respectively show several different shapes of the reflective regions, the reflective regions 330 are rectangular in fig. 4, and the reflective regions 330 are elliptical in fig. 5, which are both symmetrically distributed with respect to the low beam cut-off line. Preferably, the reflective region 330 is near the top midpoint of the curved structure 310.

Preferably, the light shielding member 30 is formed by injection molding of a high temperature resistant PC (Polycarbonate) material, where the high temperature resistant PC material is a PC material having a melting point greater than 500 ℃. The steps of manufacturing the light-shielding member 30 are as follows: firstly, a high-temperature resistant PC material is injected to form a light shielding member 30, then, the upper surface of the light shielding member 30 is plated with silver to form a reflection region 330, and finally, the edge side of the arc-shaped structure 310 is etched by laser to form a light absorption region 340.

Example 2

As shown in fig. 8, different from embodiment 1, the second light source group 210 includes a second LED light source 220 and a spherical light reflecting bowl 230 corresponding to the second LED light source 220, a light outlet 231 is disposed at a top of the spherical light reflecting bowl 230, and the second LED light source 220 corresponds to a spherical center of the spherical light reflecting bowl 230. The light outlet 231 may be located in the middle of the top of the spherical light reflecting bowl 230, or may be located at a certain position on the side, a part of light emitted from the second LED light source 220 is directly emitted from the light outlet 231, and is projected to the second partition of the lens unit 40 to be collimated and emitted, another part of light is reflected by the spherical light reflecting bowl 230 and then is incident to the light emitting surface of the second LED light source 220 again to be excited, and the above process is repeated, so that the brightness of the emitted light is improved by multiple excitations.

Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an illumination lamp, includes first light source group, the first anti-light cup that corresponds with first light source group, second light source group and lens unit, its characterized in that:

2. The illumination lamp as claimed in claim 1, further comprising a light shielding member disposed between the first light source group and the lens unit along the light path, wherein one surface of the light shielding member is provided with a reflective region and a light absorbing region, and the light emitted from the first reflector cup is projected onto the first sub-region directly or after being reflected by the reflective region of the light shielding member.

3. The lighting fixture of claim 2, wherein a side of the shade adjacent the lens unit is arcuate.

4. The light fixture of claim 3, wherein the arcuate structure is a concave surface, and a top midpoint of a side of the concave surface proximate the lens unit corresponds to a focal point of the first zone.

5. The light fixture of claim 2 wherein the light absorbing region is located between the reflective region and the arcuate structure.

6. The light fixture of claim 5 wherein the reflective region is rectangular or elliptical.

7. A lighting fixture as recited in claim 1, wherein a first lens is disposed in said first zone and a second lens is disposed in said second zone, said first and second lenses having different diameters.

8. The light fixture of claim 7, wherein the first and second lenses are integrally formed.

9. The lighting fixture of claim 1, wherein there are two second partitions symmetrically disposed with respect to the first partition, and each second partition corresponds to one second light source set.

10. The lighting fixture of claim 1, wherein the second light source group comprises a second LED light source and a spherical light reflecting bowl corresponding to the second LED light source, a light outlet is formed at the top of the spherical light reflecting bowl, and the second LED light source corresponds to the spherical center of the spherical light reflecting bowl.