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Multifunctional lighting module

A lighting module and multi-functional technology, applied in energy-saving control technology, character and pattern recognition, instruments, etc., can solve the problems of increased production cost, high power consumption, and product yield decline, and achieve small size and low power consumption Effect

Pending Publication Date: 2018-06-15
SHENZHEN ORBBEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The trend of miniaturization and thinning of smart devices makes it extremely difficult to integrate so many devices
On the one hand, more devices will bring higher power consumption, which will reduce the battery life of smart devices; on the other hand, the integration of multiple devices will greatly increase the requirements for the assembly process, resulting in a decrease in product yield and an increase in production costs.

Method used

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Examples

Experimental program
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Embodiment Construction

[0033] figure 1 It is a schematic diagram of a flood lighting module according to an embodiment of the present invention. The module 10 includes a light source 11 and a diffractive optical element (DOE) 12. The light source 11 can be a light source such as an LED or a laser for emitting infrared, ultraviolet, visible light and other light beams. The light source 11 emits a light beam and forms an incident light beam on the incident surface of the DOE12. After receiving the incident light beam, the DOE12 diffracts the incident light beam and diffuses it into a wider space 13 to realize flood lighting. In one embodiment, the DOE12 plays the role of beam splitting. The role is to copy and expand a single incident beam into multiple outgoing beams without changing the basic properties, where the basic properties include beam size, polarization direction, phase, divergence angle, etc. like figure 1 As shown, the light beam emitted by the light source 11 is diffracted by the DOE 1...

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PUM

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Abstract

The invention provides a multifunctional lighting module, which comprises a first light source for emitting a first light beam, a second light source for emitting a second light beam, and a diffractive optical element, wherein the wavelength of the first light beam is different from that of the second light beam; the diffractive optical element copies and extends the first light beam and the second light beam; a divergence angle of a first incident beam formed by the first light beam is not smaller than an included angle between adjacent diffraction beams formed after the first light beam passes through the diffractive optical element to achieve floodlighting; the divergence angle of a second incident beam formed by the second light beam is not smaller than an included angle between adjacent diffraction beams formed after the second light beam passes through the diffractive optical element to achieve structured lighting. According to the lighting module, two functions of floodlightingand structured light projection are integrated into one module, so that synchronous lighting of floodlighting and structured lighting is achieved; and meanwhile, the multifunctional lighting module has the characteristics of being small in volume and low in power consumption, and is beneficial to integration into intelligent equipment.

Description

technical field [0001] The invention relates to the field of semiconductor lighting, in particular to a multifunctional lighting module. Background technique [0002] Visual information is gradually becoming an important way for smart devices to obtain information and perceive the world. With the increasing functions of smart devices and the diversification of application scenarios, the demands based on visual information are becoming more and more extensive. For example, functional requirements such as unlocking and payment based on face recognition, gesture and action interaction based on human body information, and these functions also need to have high reliability in different scenarios and under different environmental lighting conditions. In traditional equipment, it is difficult to use cameras to obtain color image information to meet these requirements. The acquisition of visual information based on active lighting, such as infrared images, can improve the reliabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B15/02G02B27/42G06K9/00G03B30/00
CPCG02B27/425G03B15/02G06V40/16Y02B20/40
Inventor 许星
Owner SHENZHEN ORBBEC CO LTD
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