Minolta Company, Ltd.

Akio Kimba

Hiroshi Ueda

Masataka Hamada

Junichi Tanii

Takamasa Sakamoto

Iwao Ishida

In an optical unit such as AF sensor used in a camera, a sensor module is directly fixed on a flexible printed circuit substrate in a manner so that an array of photo-sensing devices formed on the sensor chip is directly connected to conductive patterns on the flexible printed circuit substrate. The printed circuit substrate with the sensor module is held by a sensor holder, and the sensor holder is fixed on an exit opening of a base member of the optical unit in a manner so that the photo-sensing surface of the sensor chip is perpendicular to an optical axis of optical elements such as lenses held on the base member.

Optical sensor and optical unit

A focus detecting device comprising a taking lens for photographing an object, a relay optical system for re-forming an object image via the taking lens, and a detecting means having first and second sensor pairs for detecting the image re-formed by the relay optical system, wherein focus detection is accomplished using one sensor of the first sensor pair and one sensor of the second sensor pair.

Focus detecting device and a method for the focus detection

A single lens reflex camera provided with a focus detection unit,arranged so as to have a photoreceptive surface disposed adjacent to an aperture,provided in the bottom wall,of a mirror box, and further provided with a cover,for effectively closing the aperture,during exposure.

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Suita, Japan

Akio Kimba