Recent advances in CMOS sensor technology have made these sensors practical and effective for use in a wide range of imaging applications found in autonomous systems, machine vision and learning, high-end scientific cameras and more. To maintain image resolution as temperatures increase, Laird Thermal Systems has expanded its Peltier thermoelectric module product family with the addition of the HiTemp ET Series, designed to provide active cooling for optical transceivers, LIDAR, DLPs used in 3D machine vision and projection, as well as other CMOS devices in high-temperature applications.
These sensitive CMOS sensors convert photons to electrons for digital processing. Thermal noise causes CMOS sensors to lose image resolution as temperature increases. This can occur in outdoor applications, where heat generated by surrounding electronics exceeds the maximum operating temperature of the CMOS sensor. To prevent image quality from deteriorating, high-temperature Peltier coolers are designed to reduce the sensor’s temperature, maintaining acceptable noise levels.
Laird Thermal Systems’ HiTemp ET Series thermoelectric modules deliver spot cooling to ensure optimal CMOS sensor performance. Offering active cooling for applications operating in temperatures ranging from 80 to 150° C, the HiTemp ET Series offers a cooling capacity of more than 300 watts in a compact form factor. To meet a broad range of design requirements, the HiTemp ET Series includes 53 models offering a variety of heat pumping capacities, geometric form factors, and input voltages.
Laird Thermal Systems’ enhanced Peltier module construction prevents copper diffusion and degradation in performance, which can occur in standard grade thermoelectric modules in higher temperature environments. “As CMOS sensors are incorporated into new emerging applications for outdoor environments, thermal management becomes more important to keep sensors below their maximum operating temperature limit,” said Andrew Dereka, Product Director at Laird Thermal Systems. “Spot cooling that features a thermoelectric module provides an active cooling solution that allows these critical sensors to maintain maximum image resolution for their application.”
The HiTemp ET Series is designed for higher current and larger heat-pumping applications offering precise (±0.01°C) temperature control accuracy.
For more information on the HiTEmp ET Series visit