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Cal Sensors, founded in 1986, was a leading manufacturer of infrared detectors and related components. In 2007, they became part of Illinois Tool Works, and in 2014, their operations merged with Opto Diode Corporation. This merger created a broader company with expertise in a wider range of light detection technologies. Opto Diode now offers a comprehensive line of infrared solutions, from custom designs to high-volume production.
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