Optoelectronics
Security Cameras
CCTV and IP security cameras are being installed in public areas to prevent crime and increase safety while thermal cameras are used for boarder and facility security at night.
Due to sun exposure and heat generated by surrounding components, the operating temperature of security cameras can be as high as 90°C. Lack of airflow, outgassing and thermal noise are other thermal challenges that needs to be taken into consideration when designing cameras for outdoor environments.
Thermoelectric Cooling for Security Cameras
Introduction
The use of outdoor cameras has seen a massive influx with the rise in security monitoring by government and private security agencies. Security cameras are installed with an objective to reduce crime or to improve public safety. CCTV and IP security cameras are installed on every corner in cities, outside hotels and retail stores, all around entertainment venues, stadiums and other commercial and industrial properties. Thermal cameras (infrared sensing) are now often used to improve facility and boarder security at night.
Active Cooling of Optical Transceivers
Introduction
Tier 1 OEM’s in telecom infrastructure market are designing the next standard for telecommunications, 5G. It will provide faster data transmission speeds than current LTE (4G) systems, approaching broadband speeds achieved with landlines. The latency will be much lower, reducing the number of times packets need to be resent. This will be great for mobile users in densely populated areas trying to stream movies, music or live TV on their smart devices.
Lidar Sensors
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.
Laird Thermal Systems Solutions
High-performance thermoelectric coolers offer a flexible active cooling option for spot cooling of Lidar sensors.
Optoelectronics
Used to source, detect and control light, optoelectronics has become 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.
Optical Transceivers
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.
Peltier Cooling for Digital Light Processors
Introduction
Digital light processors employ a laser light source and millions of tiny mirrors to produce vibrant, high-resolution images for a wide variety of industries and applications. It is critical to maintain an optimum operating temperature during use to prevent degradation of the digital light processing technology. Active cooling solutions utilizing thermoelectric coolers can provide digital light processors thermal management in a wide range of high temperature applications.
Peltier Cooling for Machine Vision
Introduction
Machine vision is the replacement of human examination, assessment and decision-making with video hardware and software systems. The technology is often used for vision inspection, quality control, robotics, wire bonding and down-hole applications where machine vision systems obtain data from analyzing images of a specific process or activity.