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Depth detection sampling method and optical device

A technology of depth detection and optical devices, which is applied in the direction of using optical devices, measuring devices, measuring distances, etc., can solve the problems of large storage space and computing time, the inability to effectively achieve the purpose of point-by-point detection, and the limitation of reaction speed, etc.

Inactive Publication Date: 2015-09-09
LITE ON TECH CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the infrared light detection element 13 is designed to detect each projected point, that is, when there are too many sampling points, the amount of data processing will be greatly increased (requiring a large amount of storage space and computing time); secondly , according to the current technology, the reaction speed that can be expressed by making this infrared light detection element is also limited by hardware, so that the purpose of point-by-point detection cannot be effectively achieved

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  • Depth detection sampling method and optical device
  • Depth detection sampling method and optical device
  • Depth detection sampling method and optical device

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] The following examples are provided for detailed description, and the examples are only used as examples for illustration and will not limit the scope of protection of the present invention. In addition, the drawings in the embodiments omit unnecessary components to clearly show the technical characteristics of the present invention.

[0036] see figure 2 , which is a functional block diagram of the optical device 2 with light detection function proposed in a preferred embodiment of the present invention. As shown in the figure, the optical device 2 mainly includes a light source scanning module 22 , a light detection module 23 and a control module 21 . In detail, the light source scanning module 22 includes a l...

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Abstract

A depth sampling method for an optical apparatus is provided. The optical apparatus includes an optical scanning module and an optical detecting module. The optical scanning module generates plural projection points along plural scan lines on a projection surface according to a sequence signal. The depth sampling method includes the following steps. Firstly, the plural scan lines are divided into at least two scan line groups. Then, plural first sampling points of a first scan line of one of the scan line groups are determined. Then, plural second sampling points of a second scan line of the scan line group are determined. There are relative shifts between the plural first sampling points and the plural second sampling points along a scan line direction.

Description

technical field [0001] The invention relates to a sampling method for depth detection and its optical device, in particular to a sampling method and its optical device which can greatly reduce the data processing amount of light detection and obtain depth value information therein. Background technique [0002] With the progress of science and technology, a pico projector (Pico Projector, also known as Micro-display) with the characteristics of small size and light weight has been developed. Regardless of whether the micro projector is manufactured independently or embedded in a mobile device, users can flexibly project and view images to be presented on a plane. [0003] At present, the display principle of the micro projector is mainly irradiated by the light beam generated by the light source, using such as liquid crystal on silicon (Liquid Crystal on Silicon, referred to as LCoS), liquid crystal display (Liquid Crystal Display, referred to as LCD), digital miniature The...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/06
CPCG01C3/08G01B11/24H04N9/3173H04N9/3129H04N9/3194
Inventor 林其鸿雷华德
Owner LITE ON TECH CORP