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Illuminating lamp and using method thereof

A technology for lighting lamps and LED light sources, applied in lighting devices, lighting and heating equipment, headlights, etc., can solve problems such as limited and low system efficiency, and achieve the effect of improving light efficiency, reducing light efficiency, and overcoming insufficient brightness.

Pending Publication Date: 2022-03-01
苏州晶清光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the low-beam state, the low-beam LED light source and the high-beam LED light source are turned on at the same time, and the low-beam light distribution requirements are realized through the shading sheet; in the high-beam state, the shading sheet is opened, and the direct light source is turned on at the same time. Auxiliary high-beam lighting to enhance the brightness of the high-beam center. However, the light that the high-beam LED light source can supply to the low beam is very limited, because most of the light output by the high-beam LED light source will be blocked by the light-shielding sheet, resulting in low system efficiency.

Method used

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  • Illuminating lamp and using method thereof
  • Illuminating lamp and using method thereof
  • Illuminating lamp and using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the present invention provides a lighting fixture, which includes a first light source group 10 , a second light source group 20 , a third light source group, a shading sheet 40 and a first lens 50 .

[0033] Wherein, the first light source group 10 includes a first LED light source 110 and a first reflective cup 120 corresponding to the first LED light source 110 , the light emitted by the first LED light source 110 is reflected by the first reflective cup 120 Shoots in the specified direction. There can be multiple first LED light sources 110 , the positions of which correspond to the focus of the first reflective cup 120 , and the light emitted by the first LED light source 110 is reflected by the first reflective cup 120 before being emitted.

[0034] The second light source group 20 includes a second LED light source 210 and an optical path turning member 220 corresponding to the second LED light source 210. The optical path turning memb...

Embodiment 2

[0042] Such as Figure 4 As shown, different from Embodiment 1, in this embodiment, the third light source group further includes a third reflective cup 320 corresponding to the third light source 310, and the light emitted by the third light source 310 passes through the first After being reflected by the three reflective cups 320 , it emits along a designated direction and forms a strip-shaped light field distribution, and the light distribution is all located below the low beam cut-off line for assisting low beam lighting. Specifically, in this embodiment, the third reflective cup 320 also corresponds to the vacant part of the first lens 50 . The light emitted from the third light source 310 can pass through the third reflector 320 and exit in parallel obliquely downward, and the formed luminous flux is located below the cut-off line of the low beam, improving the central illuminance of the low beam lighting.

Embodiment 3

[0044] Such as Figure 5 As shown, different from Embodiment 2, in this embodiment, the second light source group 20 further includes a laser light source 230 , and the light emitted by the laser light source 230 is projected onto the phosphor sheet of the second LED light source 210 . The first reflective surface 221 is an ellipsoid or an approximate ellipsoid, and the second reflective surface 222 is a plane reflective surface. The light hole is located on the ellipsoidal surface, and the second LED light source 210 includes an LED chip 211 and a phosphor sheet 212 corresponding to the LED chip 211. The light emitted by the laser light source 230 passes through the light hole and then projects to the second LED. On the phosphor sheet 212 of the light source 210, when there are two second LED light sources 210, there may be only one laser light source 230, which is projected onto one of the second LED light sources 210. Of course, two laser light sources 240 may also be provi...

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Abstract

The invention discloses an illumination lamp and a using method, the illumination lamp comprises a first light source group, a second light source group, a third light source group, a light shielding sheet and a first lens, the first light source group comprises a first LED light source and a first reflection cup corresponding to the first LED light source; the second light source group comprises a second LED light source and a light path turning piece corresponding to the second LED light source, the light path turning piece at least comprises a first reflecting surface and a second reflecting surface, the light path turning piece comprises a first focus and a second focus, the second LED light source corresponds to the first focus, and the tangent line of the anti-dazzling screen corresponds to the second focus. According to the characteristic that most of luminous flux output by the second LED light source is located above a low-beam cut-off line and only a small part of luminous flux is located below the low-beam cut-off line, in the low-beam mode, the second LED light source is turned off through the control switch, so that light is prevented from being wasted, and the luminous efficiency of the system is prevented from being reduced; and meanwhile, the third light source set is arranged for supplementing light for low-beam illumination, so that the problem of insufficient brightness is solved.

Description

technical field [0001] The invention relates to the technical field of semiconductor lighting, in particular to a lighting fixture and a using method thereof. Background technique [0002] With the development of semiconductor technology, LED (Light Emitting Diode, light-emitting diode) light source has the advantages of high efficiency, energy saving, environmental protection, low cost and long life, and is gradually replacing traditional incandescent lamps and energy-saving lamps, becoming a general lighting Light source, especially in the headlights of the far and near light has been widely used. [0003] In the existing bifocal lens, in order to increase the brightness of the center of the high beam, a group of auxiliary high beams is usually added above the lens, called the third light source, which includes the low beam LED light source, the high beam LED light source, and the third light source , the third light source may be an LED light source or a laser light sour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/663F21S41/10F21S41/141F21S41/40F21S41/265F21S41/32F21S41/33F21Y115/10F21W107/10F21W102/135
CPCF21S41/663F21S41/10F21S41/141F21S41/40F21S41/265F21S41/32F21S41/33F21Y2115/10F21W2107/10F21W2102/135
Inventor 邹诚龙涛
Owner 苏州晶清光电科技有限公司
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