-
公开(公告)号：US10447008B2
公开(公告)日：2019-10-15
申请号：US16156147
申请日：2018-10-10
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Yu-Cheng Song , Chih-Chun Chen , Fu-Shun Ho , Chien-Hung Lu
IPC: H01S5/042 , H01S5/0687 , H01S5/068
Abstract: A laser driver device is provided, which includes a control circuit, a driver circuit and a feedback circuit. The control circuit receives setup data and convert the setup data into a setup signal. The driver circuit receives the setup signal and generates a drive current according to the setup signal to drive a laser light source. The feedback circuit receives the setup data and the feedback signal of the laser light source and compares the setup data with the feedback signal to generate an adjust signal. The driver circuit receives the adjust signal and adjusts the drive current according to the adjust signal.
-
公开(公告)号：US11942750B2
公开(公告)日：2024-03-26
申请号：US17101081
申请日：2020-11-23
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Yi-Chi Lee , Hsin-Chia Su , Shih-Ting Lin , Yu-Cheng Song , Fu-Shun Ho , Chih-Chun Chen
CPC classification number: H01S3/0014 , G02B6/29389 , H01S3/06708 , H01S3/1608
Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.
-
公开(公告)号：US20220131326A1
公开(公告)日：2022-04-28
申请号：US17101081
申请日：2020-11-23
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Yi-Chi Lee , Hsin-Chia Su , Shih-Ting Lin , Yu-Cheng Song , Fu-Shun Ho , Chih-Chun Chen
Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.
-
公开(公告)号：US11283232B2
公开(公告)日：2022-03-22
申请号：US16727202
申请日：2019-12-26
Applicant: Industrial Technology Research Institute
Inventor： Chih-Chun Chen , Fu-Shun Ho , Chun-Chieh Yang , Yu-Cheng Song
Abstract: A laser protection system includes a high-power laser source, an optical diffuser, a photo detector, a signal-processing device, and a control module. The high-power laser source generates a first laser light beam, and the optical diffuser attenuates a laser power of the first laser light beam to form a second laser light beam. The photo detector obtains an optical detection signal from the second laser light beam. The signal-processing device includes a signal conversion module, a processor, and an encoder. The signal conversion module transforms the optical detection signal into a measurement data eigenvalue. The encoder encodes the measurement data eigenvalue into a measured encoded data, and the setting data eigenvalue into a set encoded data. The control module evaluates the set encoded data and the measured encoded data to determine whether or not the high-power laser source needs to be stopped.
-
-
-
Search Results
4
records
(took 0.013 seconds)
