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Multi-light-emitting-area surface light source and vehicle lamp module

A technology of light-emitting area and surface light source, applied in the direction of light source, light source fixing, semiconductor devices of light-emitting elements, etc., to achieve uniform and soft light, beautiful surface light source effect, and enhanced light reflection effect

Pending Publication Date: 2021-04-06
HASCO VISION TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a multi-light-emitting area surface light source for the problem of how to use point light source LED particles to achieve the effect of a surface light source for car lights, and at the same time have the function of displaying different information interactions.

Method used

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  • Multi-light-emitting-area surface light source and vehicle lamp module
  • Multi-light-emitting-area surface light source and vehicle lamp module
  • Multi-light-emitting-area surface light source and vehicle lamp module

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention relates to a multi-light-emitting-area area light source and a vehicle lamp module. The multi-light-emitting-area area light source comprises a circuit board; an LED lamp which is arranged on the circuit board; a reflector grating, which is arranged on the circuit board and comprises a plurality of separated areas, wherein an LED lamp is arranged in the center of each area, each LED lamp is independently controlled, and the optical center distance L between every two adjacent LED lamps and the height H of the reflector grating meet the formula that L / H = tan(delta / 2), wherein delta is the light emitting angle of light emitted by the LED lamp after passing through the diffusion film, and the diffusion film is arranged on the reflector grating and covers the LED lamp. According to the multi-light-emitting-area area light source, conversion from a point light source to an area light source can be achieved through the least LED lamps, on-off of the LED lamps in each light emitting area is independently controllable, and the pixelated area light source effect is achieved very economically; by using a light and thin diffusion film, a better light homogenizing effect can be achieved without an additional diffusion agent or an inner lens mixed with a diffusion agent material.

Description

technical field [0001] The invention relates to the technical field of automobile engineering, in particular to a surface light source with multiple light-emitting areas and a vehicle lamp module. Background technique [0002] As the preferred light source for automotive signal lights, LEDs have been widely and maturely used in automotive signal lights with various functions. However, as a point light source, LEDs are used as a signal light with a certain function in the rear lights of automobiles. Generally, multiple LEDs are required to realize a function. The luminous effect of multiple LEDs does not depend on the use of a good optical reflection system and a light distribution mirror. , it is difficult to achieve good luminous uniformity. [0003] On the other hand, with the popularization of LED light sources in the application of car lights and the increasingly miniaturized design of LED light sources, people have put forward higher requirements for the visual effects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S43/14F21S43/31F21S43/33F21S43/20F21V19/00F21V23/00F21W103/00F21W107/10F21Y115/10
CPCF21S43/14F21S43/31F21S43/33F21S43/20F21V19/001F21V23/005F21W2103/00F21W2107/10F21Y2115/10B60Q1/5035
Inventor 李佳颖
Owner HASCO VISION TECHNOLOGY CO LTD
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