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  • Case Study: Do perfect eyeglasses exist?
    for revolutionary developments, for example, the screwless miniature cylinder joint, the newly designed spring joint or exceptionally thin glasses. Do perfect eyeglasses exist? - Allied Vision Technologies. Select your regionEurope, Middle East & Africa (English)The Americas (English)Asia Pacific
  • Lens Distortion Correction and Registration of Visible and Thermal Infrared Imagery
    imagery of the same targets. Accompanying visual images. are mandatory for most of the thermographers that do not have IR cameras that record visible digital images. In cases where perfect registration and matches among different sensors/imagery are needed, it will be. necessary to determine the lens
  • Laser Beam Expander Theory (.pdf)
    Perfect Gaussian Laser beams are often characterized by a parameter known as beam divergence. Divergence is the angular spreading of light waves as they propagate through space. Even a perfect unaberrated ray of light will experience some beam divergence due to diffraction effects. Diffraction
  • Laser Beam Expander Theory
    Perfect Gaussian Laser beams are often characterized by. a parameter known as beam divergence. Divergence is the. angular spreading of light waves as they propagate through. space. Even a perfect unaberrated ray of light will experience. some beam divergence due to diffraction effects. Diffraction
  • Specifying Resolution of System Components
    ). No lens (even theoretically perfect) at any resolution can fully transfer this contrast to the image because of the diffraction limit. In fact, as the line spacing is decreased (i.e. the frequency increases) on the target, it becomes increasingly difficult for the lens to efficiently transfer
  • New Technology Offers Better Choices in Spectrophotometers
    Although color spectrophotometers are designed to measure specimens both accurately and repeatably, they accomplish these measurements only within tolerances. Spectrophotometers aren't perfect measuring devices, and how well they measure often depends upon factors under the control of the system
  • OMEGASCOPE(R) Handheld Infrared Thermometer Goes Wireless (.pdf)
    Handheld infrared thermometers are very popular for making on the spot non-contact temperature measurements with little or no setup. These devices are completely self-contained and require no additional wiring or signal processing, unlike thermocouples and RTDs. They are perfect for determining
  • Understanding MTF Testing
    is a way to incorporate resolution and contrast into a single specification. An easy way to interpret MTF results is to think of imaging a target with black and white lines (100% contrast). No lens (even theoretically perfect) at any resolution can fully transfer this contrast to the image because

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