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  2. Infrared photography - Wikipedia

    en.wikipedia.org/wiki/Infrared_photography

    One method of infrared photography using digital cameras is to remove the infrared blocker in front of the sensor and replace it with a glass cover that either removes or restricts visible light (infrared-only conversion) or one that passes infrared wavelengths ("full spectrum" conversion).

  3. Full-spectrum photography - Wikipedia

    en.wikipedia.org/wiki/Full-spectrum_photography

    Infrared films may be shot in standard cameras using an infrared pass filters, although focus must compensate for the infrared focal point. A converted digital camera usually requires that the infrared hot mirror be removed and replaced by a wideband, spectrally flat glass of the same optical path length. Typical glass types used include Schott ...

  4. Microbolometer - Wikipedia

    en.wikipedia.org/wiki/Microbolometer

    Simplified representation of a bolometric pixel. A microbolometer is a specific type of bolometer used as a detector in a thermal camera. Infrared radiation with wavelengths between 7.5–14 μm strikes the detector material, heating it, and thus changing its electrical resistance.

  5. Image intensifier - Wikipedia

    en.wikipedia.org/wiki/Image_intensifier

    An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as ...

  6. Infrared cut-off filter - Wikipedia

    en.wikipedia.org/wiki/Infrared_cut-off_filter

    Infrared Color Photography Mahatma Gandhi. Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near-infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.

  7. Readout integrated circuit - Wikipedia

    en.wikipedia.org/wiki/Readout_integrated_circuit

    A Digital readout integrated circuit (DROIC) is a class of ROIC that uses on-chip analog-to-digital conversion (ADC) to digitize the accumulated photocurrent in each pixel of the imaging array. DROICs are easier to integrate into a system compared to ROICs as the package size and complexity are reduced, they are less sensitive to noise and have ...

  8. Hot mirror - Wikipedia

    en.wikipedia.org/wiki/Hot_mirror

    Hot mirror in front of the image sensor of a DSLR. Note reddish reflection of ambient light, and teal edge of filter. A hot mirror is a specialized dielectric mirror, a dichroic filter, often employed to protect optical systems by reflecting infrared light back into a light source, while allowing visible light to pass.

  9. Photometric system - Wikipedia

    en.wikipedia.org/wiki/Photometric_system

    Infrared camera on Midcourse Space Experiment [21] Spitzer IRAC ch1 = 3.6 μm ch2 = 4.5 μm ch3 = 5.8 μm ch4 = 8.0 μm Infrared Array Camera on Spitzer Space Telescope: Spitzer MIPS 24 μm 70 μm 160 μm Multiband Imaging Photometer for Spitzer on Spitzer Stromvil filters U = 345 nm P = 374 nm S = 405 nm Y = 466 nm Z = 516 nm V = 544 nm

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