18054108. IMAGING SENSOR, IMAGING APPARATUS, AND IMAGING METHOD simplified abstract (CANON KABUSHIKI KAISHA)

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IMAGING SENSOR, IMAGING APPARATUS, AND IMAGING METHOD

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Kenzo Tojima of Tokyo (JP)

IMAGING SENSOR, IMAGING APPARATUS, AND IMAGING METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 18054108 titled 'IMAGING SENSOR, IMAGING APPARATUS, AND IMAGING METHOD

Simplified Explanation

The patent application describes a method to reduce errors in calculating the number of photons per frame in high illuminance conditions. The method involves switching the time counter's one-count time based on the illuminance level. If the pixel counter saturates within one frame, indicating high illuminance, a high-illuminance clock with more precise one-count time is used. Otherwise, a normal clock is used.

  • The method reduces errors in calculating the number of photons per frame in high illuminance conditions.
  • The time counter's one-count time is switched based on the illuminance level.
  • A high-illuminance clock with more precise one-count time is used when the pixel counter saturates within one frame.
  • A normal clock is used when the illuminance is not determined to be high.

Potential Applications

  • Photography and videography in high illuminance conditions.
  • Scientific research involving high illuminance environments.
  • Industrial applications where precise photon counting is required.

Problems Solved

  • Reduces errors in calculating the number of photons per frame in high illuminance conditions.
  • Provides a more accurate measurement of illuminance levels.
  • Improves the reliability and accuracy of photon counting systems.

Benefits

  • Improved accuracy in calculating the number of photons per frame.
  • More precise measurement of illuminance levels.
  • Enhanced performance and reliability of photon counting systems.


Original Abstract Submitted

In a case where illuminance is high, an error between the number of photons per frame calculated from time information and the number of photons and the actually expected number of photons per frame is reduced. In a time counter that counts a clock from the start of exposure in one frame, one-count time in the clock is switched depending on the illuminance. In a case where a pixel counter is saturated within a period of one frame, the illuminance is determined to be high, and a high-illuminance clock in which one-count time is set more minutely in the first half of one frame is used to count. In a case where the illuminance is not determined to be high, a normal clock is used to count.