Focus detector

Abstract

Abstract PURPOSE:To permit adequate focus detection by controlling the photodetecting parts of corresponding image sensors according to the monitor outputs of monitor means provided to each of respective focus detecting zones. CONSTITUTION:The monitor means MP1-MP4 are disposed near the corresponding photodetecting parts of the image sensors in each of the respective focus detecting zones and the photodetecting parts of the corresponding image sensors are respectively controlled according to the respective monitor outputs at the time of executing the focus detection in accordance with the outputs of the self-scanning type image sensors having the plural focus detecting zones of a focus detector which detects the focusing condition by a photographing lens by processing the photodetecting outputs of the self-scanning type image sensors such as CCD disposed with many picture elements as shown by, for example, the separate example. The adequate focus detection is thereby assured even if the luminance of the incident light on the respective focus detecting zones fluctuates.

Inventors

• 👤 Nobuyuki Taniguchi
• 👤 信行 谷口
• 👤 Tokuji Ishida
• 👤 石田　徳治
• 👤 Toshio Norita
• 👤 寿夫 糊田
• 👤 Masataka Hamada
• 👤 正隆 浜田
• 👤 Toshihiko Karasaki
• 👤 敏彦 唐崎

Bibliographic Details