Canon Kabushiki Kaisha

Nobuyuki Inoue

Shoji Kaihara

Go Tokura

Etsuro Furutsu

Satoshi Kawase

Akira Karasawa

An electronic apparatus excellent in workability in mounting a lid to an apparatus housing. The electronic apparatus comprises a housing having a pair of bearing portions, and a battery lid unit having a pair of shafts for being rotatably fitted in the bearing portions, respectively. A movable shaft of the shafts is axially retractable, and the battery lid unit is openable and closable with respect to the housing about the shafts. An urging spring has a contact portion for contact with the housing, and urges the battery lid unit in an opening direction with respect to the housing. The contact portion is moved according to retraction of the movable shaft such that an urging range through which the urging member urges the lid in the opening direction becomes smaller than a range of the pivotal motion of the lid with respect to the housing.

Electronic apparatus with detachable and openable lid

An image pickup apparatus which is capable of removing foreign substance, such as dust, attached to an optical member disposed in front of an image pickup element, even when accessories are exchanged in a power-off state of the image pickup apparatus. The type or state of an accessory mounted on the image pickup apparatus, which is detected immediately before a power-off of the image pickup apparatus are stored. When a type or state of a mounted accessory, which is detected immediately after the power-on, is different from the stored type or state of the accessory mounted on the image pickup apparatus, an operation for removing foreign substance attached to the optical member is carried out.

Image pickup apparatus, method of controlling the image pickup apparatus, and control program for implementing the method

A camera is provided with a viewfinder optical member of a roof shape, a flexible printed circuit board disposed along roof surfaces of the viewfinder optical member, and a member arranged to push the flexible printed circuit board toward the roof surfaces in such a way as to prevent the flexible printed circuit board from coming into contact with a top part of the viewfinder optical member.

Camera

A planetary-friction type speed change device includes: (a) a sun roller arranged to rotate about an axis in response to a motive rotation; (b) an outer ring substantially coaxial with the sun roller; (c) a plurality of planetary rolling elements disposed between the sun roller and the outer ring to contact each of an outer circumferential face of the sun roller and an inner circumferential face of the outer ring; (d) a casing member for housing therein the sun roller, the plurality of planetary rolling elements, and the outer ring such that the outer ring is movable relative to the casing member; and (e) an elastic member, disposed within the casing member, for supporting and axially pressing the outer ring such that the outer ring is movable in a radial direction relative to the casing member. The rotation of the sun roller causes the plurality of planetary rolling elements to revolve, thereby producing a rotation output at a reduced speed.

Planetary-friction type speed change device

A camera having a special photography function comprises a focus detecting circuit for detecting a state of focus of a subject, a focus-position altering circuit for altering a focus position of a photographic optical system in response to a detection result provided by the focus detecting circuit, and a special-photography executing circuit for executing special photography utilizing multiple exposure. The special-photography executing circuit is arranged to control the focus-position altering circuit in response to a release operation to shoot one exposure on a photosensitive portion with the photographic optical system placed in an in-focus position and continuously shoot at least one exposure on the same photosensitive portion with the photographic optical system placed in a defocused position on a closest-distance side, thereby effecting the multiple exposure.

Growing community of inventors

Kawasaki, Japan

Nobuyuki Inoue