18431442. APPARATUS AND METHOD EXECUTED BY APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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APPARATUS AND METHOD EXECUTED BY APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Yumi Takao of Chiba (JP)

Nobutaka Mizuno of Tokyo (JP)

Junichi Imamiya of Kanagawa (JP)

APPARATUS AND METHOD EXECUTED BY APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18431442 titled 'APPARATUS AND METHOD EXECUTED BY APPARATUS

Simplified Explanation

The patent application describes an apparatus with a sensor for focus detection and adjustment of a lens unit based on the obtained focus distance. When the lens unit is a multi-scopic lens unit with multiple optical systems, the apparatus uses an adjustment value based on the axis position on the sensor for focus distance calculation.

  • Sensor capable of generating a signal pair for focus detection
  • Obtains focus distance of lens unit based on defocus amount
  • Adjusts focus distance of lens unit accordingly
  • For multi-scopic lens unit, uses axis position on sensor for focus distance calculation

Potential Applications

This technology can be applied in various fields such as photography, videography, microscopy, and medical imaging where precise focus adjustment is crucial.

Problems Solved

This technology solves the problem of accurately determining and adjusting focus distance in lens units, especially in multi-scopic lens units with multiple optical systems.

Benefits

The benefits of this technology include improved image quality, enhanced accuracy in focus adjustment, and increased efficiency in capturing focused images or videos.

Potential Commercial Applications

Potential commercial applications of this technology include camera systems, medical imaging devices, surveillance systems, and any other equipment requiring precise focus control.

Possible Prior Art

One possible prior art could be the use of contrast detection or phase detection methods for focus detection in camera systems. However, the specific method described in this patent application for focus distance calculation in multi-scopic lens units may be a novel innovation.

What are the specific adjustment values used for focus distance calculation in multi-scopic lens units?

The specific adjustment values used for focus distance calculation in multi-scopic lens units are based on the axis position on the sensor through which an axis of the lens unit passes.

How does the apparatus differentiate between the signal pairs generated by the sensor for focus detection?

The apparatus likely differentiates between the signal pairs generated by the sensor for focus detection based on the defocus amount obtained, which helps in determining the focus distance of the lens unit.


Original Abstract Submitted

An apparatus comprising a sensor capable of generating a signal pair used in focus detection. The apparatus obtains, based on a defocus amount obtained using the signal pair, a focus distance of a lens unit that is mounted to the apparatus and adjusts a focus distance of the lens unit based on the obtained focus distance. When the lens unit is a multi-scopic lens unit having a plurality of optical systems having different axes, the apparatus obtains the focus distance using an adjustment value obtained based on an axis position that is a position on the sensor through which an axis of the multi-scopic lens unit passes.