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Optical module and operating method thereof

A technology of optical modules and operation modes, applied in the field of optical modules, can solve the problem of not allowing the deformation of diffractive optical elements

Pending Publication Date: 2022-03-11
TRINAMIX GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this arrangement requires diffractive optical elements with conductive edges
As a further disadvantage, this arrangement does not allow the determination of the deformation of the diffractive optical element after thermal exposure

Method used

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  • Optical module and operating method thereof
  • Optical module and operating method thereof

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Experimental program
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Embodiment Construction

[0106] figure 1 and 2 A preferred embodiment of the light module 110 according to the invention is shown in each case. here, figure 1 A shows a schematic cross-sectional view of the optical module 110, while figure 1 B shows a bird's eye view of the light module 110 .

[0107] The light module 110 comprises a light source 112 adapted to generate a desired light radiation comprising an amount of light having a beam profile and propagating along a beam path in more or less the same direction. In particular, light module 110 may be a laser module comprising a laser source configured to generate the desired optical radiation in the form of laser radiation 114 . In particular to be able to be used for 3D imaging, in particular for projection of dot patterns, a laser diode 116 , preferably an edge-emitting laser diode 118 , can be used as laser source 112 . However, other kinds of light sources 112 are also feasible, eg other kinds of laser diodes 116 or other laser sources, su...

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PUM

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Abstract

An optical module and a method for operating the same. The invention relates to an optical module (110) and a method for operating an optical module (10). The light module (10) comprises: a light source (112); an electronic circuit (124) for driving the light source (112); wherein the electronic circuit (124) comprises o a current source (126), where the current source (126) is designated for generating and controlling a control current for driving the light source (112), and o a protection controller (136), where the protection controller (136) is designated for interrupting the control current to the light source (112) in the event of a failure of the current source (126). The light module (110) and related method address human eye safe operation of the light module (10), especially for a laser light source included in the light module (110), to achieve compliance with laser safety level 1.

Description

technical field [0001] The invention relates to an optical module and a method of operating an optical module. Specifically, optical modules and related methods address eye-safe operation of optical modules, particularly for laser light sources contained within optical modules, to achieve laser safety class 1 compliance. Background technique [0002] Laser modules used for 3D imaging (for example for projection of dot patterns) usually include a laser diode designated for generating laser radiation. A laser diode as used herein is typically an edge-emitting laser diode comprising a semiconductor wafer having a surface and two cleaved edges, where laser radiation generated by applying a drive current to the wafer propagates in a direction along the wafer surface , until it is reflected or coupled out at one of the split edges. [0003] For eye-safe operation, the laser module, especially the laser diode it contains, must comply with Laser Safety Class 1. As defined in DIN ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42H01S5/042
CPCG02B6/4296G02B6/4274H01S5/042H01S5/06H01S5/06808H01H37/76F21Y2115/30F21V9/08H01S5/005H01S5/06825
Inventor B·莱因N·伯纳P·N·赖斯
Owner TRINAMIX GMBH