Cooling for CMOS Sensors
Breakthrough technology has also increased image contrasts which paves the way for the next generation of digital inspection systems.
Breakthrough technology has also increased image contrasts which paves the way for the next generation of digital inspection systems.
The OptoTEC™ OTX/HTX series of miniature thermoelectric coolers from Laird Thermal Systems Inc. is designed for high-temperature environments found in telecommunications, industrial, autonomous, and photonics applications.
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Optoelectronic devices require active cooling to maintain peak performance and long-life operation. The OptoTEC™ OTX/HTX is a miniature high-performance thermoelectric cooler that provides superior temperature stability meeting demands of high temperature optoelectronic applications.
The OptoTEC Series is a high-performance, miniature thermoelectric cooler that utilizes next-generation thermoelectric materials to boost cooling performance over standard product offerings. Process controls have been enhanced to assure repeatability and long-life operation in temperature stabilization applications for optoelectronics used within telecom and industrial laser markets.
Used to source, detect, and control light, optoelectronics are increasingly important in a wide range of automotive, telecom, and industrial applications. With high beam quality and low energy consumption, optoelectronics offer superior performance at a low cost. Due to the potentially high-temperature environments in which these optoelectronic components operate, active thermoelectric coolers are used for temperature stabilization to ensure maximum performance and long-life operation.
Infrared Range (IR) sensors are used in a variety of applications, including temperature sensing, video surveillance and motion detection. The video surveillance market utilizes infrared sensing technology for motion-based detection to improve facility security at night. Thermal cameras utilizing IR technology help airport staff quickly screen passengers to detect fever. Most recently, infrared range sensors are used to detect people’s body temperatures as a security and safety measure in the fight against COVID-19 pandemic.
Within industrial processing, laser diodes are bundled together to form a high-power laser that can cut thru materials. Laser diodes are also used in light detection and ranging (LiDAR) technology used, for example, to map the area surrounding an autonomous vehicle.
The lasers in Lidar systems, particularly those used in outdoor autonomous applications, require active cooling to achieve maximum resolution in high-temperature environments. As temperatures increase, the wavelength of the laser changes, resulting in increased range error. Maintaining operational temperatures within a Lidar system’s temperature limits ensures peak performance.
High-performance thermoelectric coolers offer a flexible active cooling option for spot cooling of Lidar sensors.
For all these packages Laird Thermal Systems manufactures several different series of thermoelectric coolers:
The OptoTEC™ OTX/HTX Series miniature thermoelectric cooler. Designed for lower current and lower heat-pumping applications, the OptoTEC™ OTX/HTX Series Series keeps the laser diode operating temperature stable at around 25+/-0.5°C, achieving a temperature accuracy of ±0.01°C.