Optical projection apparatus including monitoring film and packaging method thereof

An optical projection and film technology, applied in optics, projection devices, instruments, etc., can solve the problem of easily induced laser, and achieve the effect of preventing aging

Inactive Publication Date: 2018-04-20
SHENZHEN ORBBEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the optical projection device in the prior art is very easy to induce laser s

Method used

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  • Optical projection apparatus including monitoring film and packaging method thereof
  • Optical projection apparatus including monitoring film and packaging method thereof
  • Optical projection apparatus including monitoring film and packaging method thereof

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Embodiment Construction

[0015] The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings, so as to better understand the present invention, but the following embodiments do not limit the scope of the present invention. In addition, it should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and only the components related to the present invention are shown in the drawings rather than the number of components, Shape and size drawing, the shape, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the layout of the components may also be more complex. It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", "left", "right" etc. The orientation or positional relationship is only for the convenience o...

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Abstract

The invention provides an optical projection apparatus including a monitoring film and a packaging method thereof. The apparatus comprises a substrate used for fixing a light source and supporting a lens barrel, wherein the light source is used for emitting a light beam; a lens arranged on the lens barrel and used for receiving and collecting the light beam emitted by the light source; a transparent substrate arranged on the lens barrel, wherein one side of the transparent substrate comprises a diffraction pattern structure, and the transparent substrate is used for receiving the light beam collected by the lens and projecting the patterning light beam; the monitoring film including a transparent conductive film attached to the surface of the transparent substrate corresponding to a surface on which the diffraction pattern structure is located; and a control circuit electrically connected with the monitoring film and the light source and used for controlling the light-emitting state ofthe light source through measurement of the completeness of the monitoring film. According to the apparatus and the packaging method thereof, the problem of laser safety caused by aging, damage and deformation of the transparent substrate or a DOE of the optical projection apparatus can be prevented.

Description

technical field [0001] The invention relates to the fields of optics and optoelectronics, in particular to an optical projection device containing a monitoring thin film and a packaging method thereof. Background technique [0002] Optical projection devices are widely used in 3D scanning of objects, 3D spatial reconstruction, human-computer interaction and other fields. The optical projection device can mark the spatial information of the target object by projecting special light patterns such as codes or structures, and provide preparations for the information collection and three-dimensional reconstruction of the image acquisition device in the later stage. [0003] An optical projection device for projecting a structured beam generally includes a light source, a diffractive optical element (DOE). Among them, the diffractive optical element is used to receive the light beam emitted by the light source, and split and overlap the light beam emitted by the light source to o...

Claims

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Application Information

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IPC IPC(8): G03B21/20
CPCG03B21/2033G03B21/2053
Inventor 闫敏王兆民邓想全
Owner SHENZHEN ORBBEC CO LTD
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