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Large-view-angle catoptric imaging touch system

A touch control system and a large viewing angle technology, which are used in instruments, computing, electrical and digital data processing, etc. to achieve a good touch effect.

Inactive Publication Date: 2017-10-03
谭登峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the main purpose of the embodiments of the present invention is to provide a large viewing angle reflective imaging touch system, especially an optical touch screen that utilizes the same camera to realize control of multiple light sources, thereby solving the problems described above. Problems faced by optical touch screen solutions

Method used

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Embodiment Construction

[0070] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] First, let me introduce the working principle of the multi-light touch control device:

[0072] The user controls different light sources to emit light points with different optical characteristics to the display screen; the multi-light point touch device records a unique identity for each light point according to the different optical characteristics of each light point; the multi-light point touch device It can recognize different light points on the display screen, as well as their characteristics of movement, on-off and so on; by corresponding the movement and on-off characteristics of light points to the cursor movement and click events of the information system, the multi-light point touch device can control each The dot ...

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Abstract

The embodiment of the invention discloses and particularly relates to a large-view-angle catoptric imaging touch system. According to a method, optical controllers (101) and (102), an information processor (103) and an optical displayer (104) are included; a user controls different optical controllers (101) and (102) to emit light spots (105) and (106) with different optical characteristics to a display screen; and a multi-light-spot touch device can recognize all the different light spots on the display screen (104) and movement characteristics, illumination characteristics and other characteristics of the light spots. By corresponding the movement characteristics and the illumination characteristics of the light spots to multiple cursor moving and clicking events of an information system, the light spots are used as multi-point touch control input. By use of the devices and the method, the user can conveniently realize multi-point touch within a large range, all touch light beams can penetrate through one another without mutual disturbance, and therefore excellent control speed and fluency are displayed.

Description

technical field [0001] The invention relates to an optical touch screen, in particular to a reflective imaging touch system with a large viewing angle. Background technique [0002] I disclosed a large viewing angle reflective imaging touch system in the patent described in the application number 2009101630727. This device liberates human touch control from the side of the touch screen: the user uses the laser beam as the controller, and as long as the "light spot" is emitted to the touch screen, the remote control click and touch on the touch screen can be realized. Using this device, people can operate both in front of the screen and away from the screen. [0003] Using this device, in order to see the laser point at a position far away from the screen, the brightness of the light point needs to be brightened, but due to the high intensity of the laser beam, if the user operates in front of the screen for too long, he will feel the laser A bit of dazzle. [0004] Theref...

Claims

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Application Information

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IPC IPC(8): G06F3/042
CPCG06F3/042
Inventor 谭登峰
Owner 谭登峰
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