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Illuminance Sensor
May 2008
Hamamatsu CorporationRequest Info
BRIDGEWATER, N.J., May 5, 2008 -- Hamamatsu Corp. said its new chip-on-board-type illuminance sensor, the S10604, displays spectral response with a sensitivity close to that of the human eye because of its reduced sensitivity to infrared light.

The miniature S10604 photo IC (integrated circuit) diode is an RoHS-compliant sensor ideal as an energy-saving sensor for large-screen TV brightness control, as a backlight dimmer in LCDs on cell phones, and in other applications where the level of the ambient light is measured, the company said.

The S10604's miniature package (2.0 mm x 1.25 mm x 0.8 mm) saves space in equipment where component assembly space is critical. According to Hamamatsu, the S10604 is the same size as typical chip resistors, lending itself to pick-and-place operation during mass production of equipment without the need for special assembly apparatus.

The S10604 circuit was designed to reduce effects from infrared LED light at 940 nm, light usually used for remote control tasks, which causes unwanted effects. In addition, the S10604 features minimal color temperature error. Output variations are minimized when detecting light of the same brightness, such as light from a fluorescent lamp and incandescent lamp.

For more information, visit:

Hamamatsu Corp.
360 Foothill Rd.
Box 6910
Bridgewater, N.J. 08807
Phone: (908) 231-0960
Toll-free: (800) 524-0504
Fax: (908) 231-1218


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ambient light
Light present in the environment around a detecting or interpreting device, especially a machine vision system, and generated from outside sources. Such light must be treated as noise by the vision system.
Luminous flux incident per unit area of a surface; luminous incidence. (The use of the term "illumination" for this quantity conflicts with its more general meaning.)
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
Pertaining to or as a function of wavelength. Spectral quantities are evaluated at a single wavelength.
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