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Integrated structure of flood illuminator and dot projector

A technology integrating structure and illuminator, applied in the optical field, can solve problems such as increasing the hardware configuration space of mobile phones

Inactive Publication Date: 2019-11-19
SRAY TECH IMAGE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the flood projector and the dot-matrix projector are two different components, but they also include a light source emitter. Therefore, if the flood projector and the dot-matrix projector can be integrated, the production cost of the mobile phone can be reduced, and the mobile phone can be increased. hardware configuration space

Method used

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  • Integrated structure of flood illuminator and dot projector
  • Integrated structure of flood illuminator and dot projector
  • Integrated structure of flood illuminator and dot projector

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Embodiment Construction

[0011] In order for those skilled in the art to have a better understanding of the present invention, preferred embodiments of the present invention are enumerated below, together with the accompanying drawings, to describe in detail the composition and desired effects of the present invention.

[0012] For the convenience of description, the diagrams of the present invention are only schematic diagrams for easier understanding of the present invention, and the detailed proportions thereof can be adjusted according to design requirements. Those skilled in the art should be able to understand the relative positions of the relative elements in the drawings described in the text, so they can be turned over to present the same components, which should all belong to the disclosure of this specification. The scope is described here first.

[0013] Please refer to figure 1 , which shows a schematic cross-sectional view of the integrated structure of the flood illuminator and the dot...

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Abstract

The present invention provides an integrated structure of a flood illuminator and a dot projector, the structure includes a light source emitter, a collimator disposed at a front side of the light source emitter, an integrated lens located at the front side of the light source emitter, the integrated lens includes a diffractive optical element (DOE) and a diffuser, and a switching device connectedto the integrated lens, to control the DOE or the diffuser of the integrated lens aligned with the position of the light source emitter. In the invention, the same structure can be taken as a flood illuminator and a dot projector for use, the same whole structure replaces two different elements of the flood illuminator and the dot projector so as to reduce the manufacturing cost of the mobile phone and increase the hardware configuration space of the mobile phone.

Description

technical field [0001] The invention relates to the field of optics, in particular to an integrated structure of a flood illuminator and a dot projector. Background technique [0002] With the advancement of science and technology, mobile phones have become one of the indispensable belongings of modern people. Therefore, the protection technology of personal mobile phone data is constantly being researched and developed. [0003] In recent years, with the development of 3D stereoscopic image sensing technology, electronic products with face recognition function have gradually appeared on the market. Taking a mobile phone as an example, existing mobile phones with a face recognition function at least include devices such as a floodlight illuminator, a dot-matrix projector, and an infrared lens. The face recognition process of the existing mobile phone generally includes three steps in sequence, which are proximity sensing (judging whether there is an object approaching the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/42G02B27/30G03B21/20
CPCG02B27/30G02B27/4205G03B21/206G02B19/0047G02B27/425G02B5/0294G02B26/0808G02B26/0875G06T7/521
Inventor 郑训育
Owner SRAY TECH IMAGE CO LTD
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