infrared filter


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infrared filter

[¦in·frə¦red ′fil·tər]
(optics)
A substance or device which is highly transparent to infrared radiation at certain wavelengths while absorbing other types of electromagnetic radiation.
References in periodicals archive ?
Digital cameras can be modified for infrared use by having the blocker removed and then using a red or infrared filter to further enhance the effect, but this is a complicated and expensive procedure for anyone without a specific or professional interest.
Digital signal processing circuitry delivers clear video in most lighting environments, and a day/night control uses an infrared filter for excellent images in low light.
The camera on the iPhone 5C is again taken from the iPhone 5, featuring an 8-megapixel sensor, complete with five-element lens and hybrid infrared filter.
A mechanical infrared filter automatically switches from color to black and white based on scene conditions.
Electronic condenser include an integral infrared filter to prevent overheating of the cells;
An infrared filter can be threaded into the front of the G3's 11/4-inch nosepiece, or into another set of threads on the G3 body just ahead of the optical window in front of the CCD.