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  • M12-EXM-IRC21 Day-Night Exchanger
May 2006
Sunex Inc.Request Info
CARLSBAD & MOUNTAIN VIEW, Calif., May 22, 2006 -- Sunex Inc., a provider of imaging optics for CMOS and CCD cameras, introduces a new product that provides true day-and-night capability to cameras based on chipsets from imaging technology maker Pixim Inc. The Sunex M12-EXM-IRC21 is an infrared (IR) cut-off filter exchanger SunexDayNight.jpgwith integrated miniature lens mount. In low-light conditions the exchanger maximizes the light transmission to the sensor. In full-light conditions the exchanger optimizes the color rendition of the image.

The exchanger is designed to work specifically with Pixim DPS (Digital Pixel System) chipsets. Operation is simple, requiring only a mating, 2-pin connector and a 3 V, 100 ms signal. One signal inserts the IR cut filter between the lens and the sensor for daytime operation, optimizing the color rendition. The opposite signal exchanges the IR cut filter for a clear antiflective-coated window to maximize the light transmission in low-light conditions. The latching solenoid requires power only to switch, minimizing power consumption and heat generation.

Sunexexchanger.jpgThe compact size and integrated lens mount is ideal for miniature dome and board-level cameras. The integrated lens mount is threaded M12x0.5 to accept a wide range of off-the-shelf and custom lenses. Because the 34 mm by 34 mm footprint has mounting holes designed specifically to mate with the Pixim reference PCB, the exchanger may be a drop-in replacement for the fixed lens mount.

    Key Features:
  • Maximum light transmission in low-light conditions
  • True color rendition during the day
  • Designed specifically to fit the Pixim DPS chipsets
  • Absorptive, blue-glass filter optimized for best color
  • Latching solenoid requires power only to switch
  • Security and surveillance cameras

Samples are available either through Sunex or Pixim. Volume production is available direct from Sunex to ensure the lowest cost. Other custom exchanger, lens and mount solutions are also possible.

For more information, visit:; e-mail:

Sunex Inc.
5963 La Place Court
Suite 104
Carlsbad, CA 92008
Phone: (760) 602-0988
Fax: (760) 602-0681
Web site:


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A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
1. With respect to radiation, a device used to attenuate particular wavelengths or frequencies while passing others with relatively no change. 2. See digital filter.
A transparent optical component consisting of one or more pieces of optical glass with surfaces so curved (usually spherical) that they serve to converge or diverge the transmitted rays from an object, thus forming a real or virtual image of that object.
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