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Infrared laser source device, lighting device and motor vehicle

A technology of infrared lasers and lighting devices, which can be used in lighting devices, components of lighting devices, motor vehicles, etc., and can solve problems such as increasing high light intensity

Pending Publication Date: 2022-07-29
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, if the human eye observes at the exit surface of the outer casing of the infrared laser source device, the problem caused by the high light intensity at the output interface is solved by increasing the size of the light-emitting area visible to the human eye

Method used

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  • Infrared laser source device, lighting device and motor vehicle
  • Infrared laser source device, lighting device and motor vehicle
  • Infrared laser source device, lighting device and motor vehicle

Examples

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Embodiment Construction

[0036] In general, it should be noted that the elements shown in the figures do not adhere to dimensions and ratios, but have been greatly exaggerated in order to highlight the general principles of the operation of the device and the layout of the device. This is why these drawings are mainly used as schematic diagrams.

[0037] figure 1 A schematic diagram of a laser source arrangement 1 according to the prior art is provided. Such devices typically include an outer housing 11 mountable to a printed circuit board 20 . The housing 11 includes, in its front F, a light output interface 12, which may consist of a transparent or translucent portion arranged within the housing 11, such as a laser-transparent window.

[0038] The outer housing 11 also includes in its rear portion R an infrared laser source 14 capable of emitting an IR laser beam B. At the output of source 14, laser beam B is any laser beam directed in a single direction and consisting of a single wavelength. As...

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Abstract

The invention relates to an infrared laser source device, a lighting device and a motor vehicle. An infrared laser source device (10) is provided with an outer housing (11) comprising: a light output interface (12) arranged in a front (F) of the outer housing (11); at least one infrared laser source (14) arranged in the rear (R) of the outer housing (11) and configured to emit an IR laser beam (B) providing a first emission area (C1) at the light output interface (12); and a first light distribution element (15) configured to diverge light at the light output interface (12) wherein the infrared laser source arrangement further comprises a second light distribution element (16) separate from the first light distribution element (15), the second light distribution element providing a second emission region (C2) at the light output interface (12) that is larger than the first emission region (C1).

Description

technical field [0001] The present disclosure relates to the field of laser source devices, and more particularly to infrared laser source devices typically used to illuminate scenes that need to be viewed by surveillance cameras. This infrared laser source setup is particularly effective for illuminating dark or nighttime scenes. More specifically, the beam provided by such an infrared laser source arrangement is or may be directed towards a person's face, which must not be dazzling or glare for safety or comfort reasons. The present disclosure also relates to a lighting device comprising such an infrared laser source device, eg for a surveillance camera, and a vehicle, especially a motor vehicle, equipped with such a lighting device. Background technique [0002] Today, laser diodes are used in various fields such as pharmaceuticals, telecommunications, and entertainment. However, one of the preferred applications to which the present disclosure relates is in the field o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B15/02G03B30/00F21V5/00F21Y115/30F21W107/10
CPCG03B15/02G03B30/00F21V5/004F21V5/00F21Y2115/30F21W2107/10H04N23/21H01S5/18386H01S5/18388H01S5/005G02B5/0278H01S5/423G06V20/597B60Q3/60B60R11/04H04N5/33
Inventor S·斯米茨D·维尔克A·哈克
Owner APTIV TECH LTD
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