Laser pen and laser writing system

A laser pointer and laser technology, applied in the field of light sensing, can solve the problem of inability to write at close range, and achieve the effect that is beneficial to use

Pending Publication Date: 2022-08-02
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a laser pointer and a laser writing system to solve the problem that the existing laser pointer cannot write at close range

Method used

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  • Laser pen and laser writing system
  • Laser pen and laser writing system
  • Laser pen and laser writing system

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] Example 1: According to the pressure on the pen tip 121 , it is determined whether the pen is currently in a pen down state (the pen tip 121 abuts against the light-sensitive screen 200 ) or the pen-up state (the pen tip 121 leaves the light-sensitive screen 200 ). The end of the pen tip 121 away from the pen holder 110 is provided with a second pressure sensor, and the laser pointer 100 further includes a main control circuit; the main control circuit is electrically connected with the second pressure sensor and the laser generating device, and the main control circuit is used for according to the second pressure sensor. The detection data controls the laser generator to turn on or off. In this embodiment, when the second pressure sensor detects that the axial pressing force of the pen tip 121 is greater than zero, it is considered that the pen tip 121 has abutted against the light-sensitive screen 200 . When the second pressure sensor detects that the axial pressing f...

example 2

[0050] Example 2, the end of the pen tip 121 away from the pen holder 110 is provided with a light sensor, and the laser pen 100 further includes a main control circuit; the main control circuit is electrically connected to the light sensor and the laser generating device, and the main control circuit is used for detecting data according to the light sensor. Controls the laser generator to turn on or off. In this embodiment, the light sensor is used to detect the light-sensing condition of the end of the pen tip 121 away from the pen holder 110 . When the light sensor determines that the detected light intensity is greater than or equal to the preset light intensity, it means that the pen tip 121 is currently in contact with the light-sensitive screen 200 . (the light source in the working state of the light-sensing screen 200, and relevant content is displayed on it, at this time, the light intensity emitted by the light-sensing screen 200 is stronger than the light intensity ...

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PUM

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Abstract

The invention provides a laser pen and a laser writing system, and the laser pen comprises a penholder which is provided with a mounting cavity with an opening at one end; the laser generating device is mounted in the mounting cavity; the pen point is installed at the opening end of the pen holder and electrically connected with the laser generating device, the pen point is provided with a pen point, and the pen point is used for emitting laser emitted by the laser generating device; and the information exchange module is used for sending a request instruction to the light sensing screen, so that the light sensing screen performs display according to the request instruction and the received laser. The laser pen provided by the invention can be used for light-sensitive writing.

Description

technical field [0001] The present application belongs to the field of light sensing technology, and in particular relates to a laser pointer and a laser writing system. Background technique [0002] As a new high-precision remote interactive screen, the light-sensitive screen is a kind of light-sensitive TFT that utilizes the photosensitive characteristics of the light-sensitive TFT. When illuminated, the photo-generated carriers increase, causing the current to change, realizing the conversion of optical signals and electrical signals. The electrical signal is read and processed by reading IC and FPGA to realize position reporting. The light-sensing interactive screen makes up for the defect that the touch screen cannot interact remotely, but at the same time, the current laser pointers on the market can only achieve simple instructions and point reporting, and cannot meet the needs of contact writing, that is, close-range writing cannot be performed. Implementation, is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/042
CPCG06F3/03545G06F3/042
Inventor 李瑞环
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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