Image sensors and optical devices

Which correctly describes the "three-chip" imaging method used in broadcast cameras and similar?

  1. AThree lenses capture stereoscopic video
  2. BThree exposures are combined for brightness
  3. CA prism splits light into red, green and blue, each received by a separate image sensor
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Answer: C. A prism splits light into red, green and blue, each received by a separate image sensor

In a three-chip camera, a dichroic prism splits the incoming light into red, green and blue, and three image sensors each receive one color. Every pixel has full color information, so no color interpolation is needed, giving excellent color reproduction and sharpness. In exchange, the optics are larger and more expensive.

  • A. It is not a stereoscopic capture method.
  • B. It is not an HDR method combining exposures.
  • C. Correct. Light is split into three colors received by separate sensors.
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More Image sensors and optical devices questions

  1. Which light detector is operated with a reverse bias above its breakdown voltage so that even a single photon triggers a pulse through avalanche multiplication?
  2. Which image sensor detects only changes in brightness at each pixel and asynchronously outputs information only from pixels that changed?
  3. In a CMOS image sensor, what problem occurs when charge transfer from the photodiode to the floating diffusion is incomplete?
  4. Which evaluation method obtains an image sensor's conversion gain and similar parameters from the relationship between the mean and variance of the signal in images taken at different brightness levels?
  5. Which photosensitive material is being researched and commercialized to detect short-wave infrared (SWIR, about 1 to 2 µm), which silicon cannot detect, with low-cost image sensors?