Image sensors and optical devices

Which is closest to the pixel size of high-resolution image sensors for smartphones?

  1. AAbout 1 mm
  2. BAround 1 µm
  3. CAbout 100 µm
Show answer and explanation

Answer: B. Around 1 µm

In high-resolution smartphone sensors, pixels have shrunk to around 1 µm and even smaller. To maintain sensitivity with small pixels, technologies such as backside illumination, DTI and binning multiple pixels into one are combined.

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More Image sensors and optical devices questions

  1. Which autofocus method uses some pixels of the image sensor to receive light from the left and right sides of the lens separately?
  2. What is the maximum number of electrons that one pixel of an image sensor can store called?
  3. Which semiconductor laser has a built-in diffraction grating so that it oscillates stably at a single wavelength for optical communication?
  4. Which correctly describes a "12-megapixel" image sensor?
  5. In image sensors that capture color images, why must color filters be placed over the pixels?