Canon Kabushiki Kaisha

Ichiro Shimizu

Yoshio Komine

Hideyuki Nishida

Shunichi Haga

Makoto Masunaga

Toru Yatabe

A transformer including a bobbin formed by uniting a winding member, which has a primary winding and secondary winding and a bore formed thereon and therein, with a primary winding fixture and secondary winding fixture adjoining the openings of the bore, and a ferromagnetic core having a core portion thereof inserted into the bore and including an enclosure for enclosing the windings is manufactured according to a process including an affixing step of firmly affixing both or either of the primary winding fixture and secondary winding fixture to the ferromagnetic core, an impregnation step of impregnating the transformer with a varnish, and an applying step of applying adhesives. A components-mounted substrate is incorporated in a housing to be immobilized and locked in a direction parallel to the components-mounted surface thereof, in which when an impact load is imposed in a direction substantially orthogonal to the components-mounted surface, the components-mounted substrate is displaced by a given magnitude in order to absorb an impact, and in which a displacement whose magnitude is equal to or larger than the given magnitude is restrained in order to disperse the load.

Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit

Transformer assembling method, transformer, transformer-mounted

This application discloses a motion picture camera having an automatic focus (auto-focus) adjusting device for automatically focusing a shooting lens on an object. The motion picture camera includes a first manipulating means for selecting one mode of the following three modes, a first mode in which said auto-focus adjusting device is rendered inoperative so that the shooting lens can be manually focused; a second mode in which, in response to the camera release, the shooting lens can be auto-focus adjusted by said auto-focus adjusting device only once and thereafter held at a locked position irrespective of variations in distance between the shooting lens and object; and a third mode in which, throughout a period of the camera release, the shooting lens can be continuously auto-focus adjusted by said auto-focus adjusting device, following the variations in distance between the shooting lens and object, and a second manipulating means effective only in said second and third modes for permitting the shooting lens to be auto-focus adjusted by said auto-focus adjusting device again only once during the camera release in the second mode and for holding the shooting lens at its locked position irrespective of the camera release in the third mode.

Motion picture camera having an auto-focus adjusting device

In a camera having a photo-taking lens adapted to be preceded by an attachment lens to effect a change in focal length, an autofocusing device whose distance measuring portion operates with an optical system outside the photo-taking lens. The autofocusing device is provided with a sensing device responsive to the detection of the attachment lens for excluding the operation of the automatic focus adjustment from the focusing mechanism for the photo-taking lens.

Camera with autofocusing device

The present invention relates to a motion picture camera which includes a film feeding device for intermittently feeding a film for recording picture information on the film and the sound information on the film exposing part of the film. A sound recording device for recording sound information on the film, and a film constant speed feeding device for feeding the film to the sound recording position of the sound recording device at a constant speed are provided. A driving motor for driving the film constant speed feeding device and a reduction gear mechanism is provided between the driving motor and the film constant speed feeding device, whereby the driving power of the driving motor is transmitted to the film constant speed feeding device through the reduction gear mechanism in such a manner that the film constant speed feeding device is rotated at a constant speed.

Growing community of inventors

Mitaka, Japan

Ichiro Shimizu