CN213362317U - Lighting lamp - Google Patents

Abstract

The utility model discloses an illumination lamp, including light source group, anti-light cup, anti-light member and lens set gradually along the light path, and the one side that anti-light member is close to lens is the arc structure, and the upper surface of anti-light member includes short-distance beam cut-off line profile, and the upper surface of anti-light member includes reflection zone territory and light absorption zone territory, and reflection zone territory and light absorption zone territory are located the lens optical axis, and light absorption zone territory is along the edge distribution of arc structure. Set up the arc structure through one side that corresponds at light-shading piece and lens, set up the reflection zone and be used for the partial light reflection that can not project originally on the lens of anti-light cup outgoing and project the collimation outgoing behind the first half of lens at light-shading piece upper surface, improve the luminance of illumination facula and the utilization ratio of lens, in addition, set up light absorption zone at the edge along the arc structure of light-shading piece, be used for absorbing the light absorption that is close to the arc structure, avoid near passing light cut-off line producing miscellaneous light, the luminance and the definition of illumination facula have been improved.

Description

Lighting lamp

Technical Field

The utility model relates to a semiconductor lighting field, concretely relates to illumination lamp.

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.

In the existing LED automobile headlamp, an LED light source is positioned at the center of a sphere of a car lamp reflecting cup, and light beams emitted by the LED light source are collected by the car lamp reflecting cup and distributed by a rear-end optical system (comprising a light screen, a lens and the like) to finally project required light field distribution. However, due to the limitation of space, only part of the light emitted from the LED light source can be emitted through the lens, which not only reduces the utilization rate of the light source, but also results in insufficient brightness of the formed light spot.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the prior art, provide a can improve illumination facula's luminance and the illumination lamps and lanterns of definition.

In order to solve the technical problem, the technical scheme of the utility model is that: an illumination fixture comprising a light source bank, a reflector cup, a shade and a lens:

the light source group emits an illumination light beam;

the light reflecting cup collects the illuminating light beams emitted by the light source group and reflects and emits the illuminating light beams along the designated direction;

light-proof and lens set gradually along the light path, just light-proof is close to one side of lens is the arc structure, light-proof's upper surface includes the short-distance beam cut-off line profile, and light-proof's upper surface includes reflection region and light absorption region, reflection region and light absorption region distribute along the lens optical axis, light absorption region is followed the edge distribution of arc structure.

Furthermore, the arc-shaped structure is a concave surface, and the middle point of the top of the concave surface close to one side of the lens corresponds to the focal point of the lens.

Further, the reflecting area is a silvered reflecting area.

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

Further, the reflective region is near a top midpoint of the arcuate structure.

Further, the reflection area is rectangular.

Further, the reflection area is elliptical.

Further, the reflective region is near a top midpoint of the arcuate structure.

Further, the light source is an LED light source or a laser light source.

Further, the shading part is formed by injection molding of a high-temperature-resistant PC material.

Further, the manufacturing process of the shading piece comprises the following steps: firstly, a high-temperature-resistant PC material is used for injection molding to form a light shielding piece, then silver plating is carried out on the upper surface of the light shielding piece to form a reflection area, and finally etching operation is carried out on one side of the edge of the arc-shaped structure through laser to form a light absorption area.

The utility model provides an illumination lamp, including the light source group, anti-light cup, anti-light member and lens, one side through corresponding with lens at anti-light member sets up the arc structure, it is used for the partial light reflection that originally can not project on lens and projects the first half back collimation outgoing of lens to set up reflection zone at anti-light member upper surface, improve the luminance of illumination facula and the utilization ratio of lens, in addition, set up light absorption region at the edge along the arc structure of anti-light member, be used for absorbing the light absorption that is close to the arc structure, avoid near passing light cut-off line producing parasitic light, the luminance and the definition of illumination facula have been improved.

Drawings

Fig. 1 is a schematic view of a specific light path structure of the lighting device of the present invention;

fig. 2 is a schematic view of a specific structure of the light-shielding member of the present invention;

fig. 3-4 are schematic diagrams of two specific structures of the reflective region and the light absorbing region of the present invention;

FIG. 5 is a schematic view of the illumination spots corresponding to the non-reflective region of the shielding member of the present invention;

fig. 6 is a schematic view of the illumination light spot corresponding to the reflection area of the shielding member of the present invention.

Shown in the figure: 10. a light source group; 20. a light reflecting cup; 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.

Detailed Description

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

as shown in fig. 1, the present invention provides an illumination lamp, which comprises a light source group 10, a reflective cup 20, a light shielding member 30 and a lens 40.

The light source group 10 emits an illumination light beam, the light source group 10 may be an LED light source group or a laser light source group, the LED light source group may include at least one light emitting diode, the laser light source group may include a laser source and a phosphor layer, for example, the laser source may be a laser diode or a semiconductor laser capable of emitting blue light, the phosphor layer may be a yellow phosphor layer, which has a yellow phosphor material, the blue light emitted from the laser source is projected onto the yellow phosphor material to generate a yellow light-receiving laser, and a portion of the blue laser not absorbed and the yellow light-receiving laser are combined to form white light required for illumination.

The reflection of light cup 20 collects the illuminating beam that light source group 10 sent and follow the outgoing of appointed direction reflection, as shown in fig. 1, reflection of light cup 20 collects the illuminating beam that light source group 10 sent and follow the outgoing below, if do not shelter from then will project the latter half of lens 40 and then the outgoing, wherein lean on the light of below will form miscellaneous light, influence the light type, consequently all can set up the light screen on the light path usually, thereby shielding part light, in order to form required light type, department's light just can be wasted this moment.

Light-proof 30 and lens 40 set gradually along the light path, just light-proof 30 is close to one side of lens 40 is arc structure 310, and one side that light-proof 30's cross section is close to lens 40 is the curve promptly, and the illuminating beam passes through lens 40 with this curve and forms images into a straight line at a distance, can not influence the light type. 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. In the present embodiment, the low beam cut line profile 320 may be formed through the surface of the light shielding member 30 in the optical axis direction of the lens 40, or may be formed in a partial region of the light shielding member 30 in the optical axis direction of the lens 40.

The upper surface of the light-shielding member 30 includes reflective regions 330 and light-absorbing regions 340, the reflective regions 330 are distributed along the optical axis of the lens 40, the reflective regions 330 are preferably silver-plated reflective regions, and may be other highly reflective material layers, the reflective region 330 can reflect part of the light emitted from the reflector 20, which cannot be projected onto the lens 40, to the upper region of the lens 40 for collimation, and then form a low beam together with other light, thereby improving the central brightness of the illumination spot, which is a simulation of the illumination spot without the reflection area 330 provided on the light-shielding member 30 as shown in fig. 5, the brightness is up to 65.6lx (lux), fig. 6 shows a simulation diagram of an illumination spot in which a reflection area 330 is provided on the light-shielding member 30, and the brightness is 135lx (lux), which is twice the highest brightness in fig. 5, and it can be seen that the central brightness of the illumination spot can be greatly improved by passing through the reflection area 330.

The upper surface of the light shielding member 30 further includes a light absorbing region 340, and the light absorbing region 340 is located on the optical axis of the lens 40 and distributed along the edge of the arc-shaped structure 310. 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 40 corresponds to a focal point of the lens 40, most of the light rays emitted from the reflective cup 20 converge near the focal point and are projected onto the lens 40 to be collimated and emitted, 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 also converged near the focal point after being reflected by the reflection region 330, and finally, the light rays are emitted through the lens 40 and the brightness of the illumination spot is improved. In the embodiment, the middle of the low-beam cut-off line is located near the focus of the lens 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. 2, and can also be located in a partial area 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 40, and may be rectangular or elliptical or have other irregular shapes, as shown in fig. 3-4, which respectively illustrate several different shapes of the reflective regions, the reflective regions 330 are rectangular in fig. 3, and the reflective regions 330 are elliptical in fig. 4, which are both symmetrically distributed with respect to the near-light 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.

To sum up, the utility model provides an illumination lamp, including light source group 10, anti-light cup 20, anti-light member 30 and lens 40, anti-light member 30 is arc structure 310 with one side that lens 40 corresponds, set up reflection area 330 and be used for the partial light reflection that originally can not project on lens 40 with anti-light cup 20 outgoing and project collimation outgoing behind the first half of lens 40 at anti-light member 30 upper surface, improve the luminance of illumination facula and the utilization ratio of lens, in addition, set up light absorption area 340 at the edge of the arc structure 310 along anti-light member 30, be used for absorbing the light absorption that is close to arc structure 310, avoid near passing light cut-off line producing miscellaneous light, make the border of illumination facula clearer, the illuminating effect has been improved.

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 (9)

1. The utility model provides an illumination lamp, includes light source group, anti-light cup, anti-dazzling screen and lens, its characterized in that:

the light source group emits an illumination light beam;

the light reflecting cup collects the illuminating light beams emitted by the light source group and reflects and emits the illuminating light beams along the designated direction;

light-proof piece and lens set gradually along the light path, just light-proof piece is close to one side of lens is the arc structure, light-proof piece's upper surface includes the short-distance beam cut-off line profile, and one of them surface of light-proof piece is equipped with reflection region and light absorption region, reflection region and light absorption region distribute along the lens optical axis, light absorption region is followed the edge distribution of arc structure.

2. The light fixture of claim 1, wherein the arcuate structure is a concave surface, and a top midpoint of the concave surface on a side of the lens that is proximate to the lens corresponds to a focal point of the lens.

3. A lighting fixture as recited in claim 1, wherein said reflective region is a silvered reflective region.

4. The light fixture of claim 1 wherein the light absorbing region is located between the reflective region and the arcuate structure.

5. The light fixture of claim 1 wherein the reflective region is proximate a top midpoint of the arcuate structure.

6. The light fixture of claim 1 wherein the reflective area is rectangular.

7. The light fixture of claim 1 wherein the reflective area is elliptical.

8. The light fixture of claim 1, wherein the light source is an LED light source or a laser light source.

9. The lighting fixture of claim 1, wherein the light shield is injection molded from a high temperature resistant PC material.

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