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Method and system for applying linear array CCD (Charge Coupled Device) to laser focusing

A linear array and laser technology, applied in the field of laser focusing, can solve the problems of inconvenient installation and debugging of instruments, low efficiency and poor accuracy, and achieve the effects of simple debugging, low cost and accurate reading.

Inactive Publication Date: 2011-05-25
XIAN HUANIC OPTOELECTRONICS CORP
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Problems solved by technology

[0003] The first object of the present invention is to solve the problem of poor accuracy and low efficiency caused by the method of human speech recognition in the focus adjustment of the existing laser tube
[0004] The second purpose is to solve the problem of inconvenient installation and debugging of existing instruments

Method used

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  • Method and system for applying linear array CCD (Charge Coupled Device) to laser focusing
  • Method and system for applying linear array CCD (Charge Coupled Device) to laser focusing
  • Method and system for applying linear array CCD (Charge Coupled Device) to laser focusing

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Embodiment Construction

[0018] see figure 1 , 2 , turn on the point-shaped laser 1 that needs to be focused, make it emit a laser beam, irradiate the linear array CCD solid-state sensor 2, and the linear array CCD solid-state sensor 2 converts the received optical signal into an electrical signal through the high-speed detector AD and transmits it to the The digital processor FPGA; the digital processing unit FPGA locates the center position of the laser beam with the electrical signal it receives, and calculates through the computer to obtain the calculation result, so as to determine that the point laser tube 1 is projected to in the process of focusing. The change of the light spot size on the linear array CCD solid-state sensor 2, when the light spot becomes the minimum value, the focus adjustment is completed.

[0019] Referring to Fig. 3, the linear array CCD provided by the present invention is applied to the system of laser focusing, including the collimated laser generator for generating la...

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Abstract

The invention relates to a method for applying linear array CCD (Charge Coupled Device) to laser focusing, comprising the following steps: 1) receiving laser beams emitted by a laser tube through a linear array CCD solid sensor; 2) converting optical signals received by a CCD receiver to electric signals for being transmitted to a digital processor FPGA (Field-Programmable Gate Array) through a high-speed detector AD; and 3) locating the central position of the received laser beams through the digital processing unit FPGA, transmitting the signals to a computer by the digital processing unit FPGA, calculating and obtaining the calculation result so as to ensure the size changing of light spots projected on the linear array CCD solid sensor during the focusing of the laser tube, and completing the focusing when the light spots change to the minimum. The method has the advantages of accurate reading value, low production cost, and simple structure, installation and modulation.

Description

technical field [0001] The invention relates to a method and a system for applying a linear array CCD to laser focusing. Background technique [0002] In modern laser module manufacturers, whether it is producing a point light source or a linear light source, it is necessary to adjust the focus of the original laser tube. In this inevitable and extremely important process, our country is still carrying out the most primitive method, that is, human eye recognition for focusing, and the equipment used is divided into two parts: camera and display, and the camera part must be aligned with the laser beam, and The camera part and the display part need to be connected by a data transmission line, so installation, debugging, and placement are all subject to certain restrictions, resulting in poor precision and low efficiency. Contents of the invention [0003] The first object of the present invention is to solve the problem of poor precision and low efficiency caused by the hum...

Claims

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Application Information

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IPC IPC(8): G02B7/36
Inventor 孙建华李宁何先灯
Owner XIAN HUANIC OPTOELECTRONICS CORP
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