Canon Kabushiki Kaisha

Texas Instruments Corporation

Masanori Uchidoi

Hiroshi Aizawa

Masami Shimizu

Yukio Iura

Tokuichi Tsunekawa

Tetsuya Taguchi

Nobuaki Date

Tomonori Iwashita

Masayoshi Yamamichi

Tadashi Ito

Yukio Mashimo

Yoshihiro Shigeta

Yoshiyuki Takishima

Hiroshi Yamamoto

Masaharu Kawamura

Susumu Kozuki

Takashi Uchiyama

Nobuo Tezuka

Zenzo Nakamura

Kuniyoshi Suzaki

Kazunobu Urushihara

Ryoichi Yoshikawa

Akihiko Suzuki

Yoji Sugiura

Takayuki Nemoto

Nobuyuki Suzuki

Yoichi Tosaka

Toshikazu Ichiyanagi

Shosuke Haraguchi

Hideaki Miyakawa

Satoshi Watanabe

Hiroyasu Murakami

Teiji Hashimoto

Kunio Watanabe

Junji Omi

Masayuki A Suzuki

Nobuhiko Shinoda

Masayoshi Kiuchi

Ryuji Tokuda

Stephen C Kwan

Tokuichi Tunekawa

Shyohei Ohtaki

Kazunobu Urushibara

Ryoichi Suzuki

Shinji Sakai

Yoshiaki Watanabe

Fumio Ito

Makoto Katsuma

Syuichiro Saito

Bernhard H Andresen

Akio Sunouchi

Yusuke Ono

Hiroyuki Kataoka

Shohei Ohtaki

Tateo Yamada

Robert C Martin

Osamu Ohshima

Tadahide Fukushima

Masahisa Fukui

Kenichi Kumazawa

Mitio Senuma

Zenso Nakamura

Noboru Kodaira

Nebuaki Date

Masaharau Kawamura

Keiya Murayama

A camera apparatus includes a single release switch member. The single release switch member is for instructing an image capture operation, and selects one of a first operative state and a second operative state. The first operative state is selected when the single release switch member is pushed down to a first depth. The second operative state is selected when the single release switch member is pushed down to a second depth which is deeper than the first depth. The camera apparatus selects a recordable portion of a recording medium in response to selection of the first operative state, and generates a predetermined electrical signal if the camera apparatus selects the recordable portion of the recording medium. The camera apparatus records the image signal on the selected recordable portion if the second operative state is selected by the single release switch member, and the predetermined electrical signal is generated.

Recording device

A picture image recording device using a recording medium which permits setting a plurality of recording tracks separately from each other for recording picture image signals on each of them. In the improvement made by this invention, the operating mode of the device is shiftable at least between two modes including a first mode in which image recording is performed only on one recording track and a second mode in which image recording is performed continuously or sequencially on a plurality of recording tracks.

Picture image recording device

A picture image recording device using a recording medium which permits setting a plurality of recording tracks separately from each other for recording picture image signals on each of them. In the improvement made by this invention, the operating mode of the device is shiftable at least between two modes including a first mode in which image recording is performed only on one recording track and a second mode in which image recording is performed continuously or sequentially on a plurality of recording tracks.

Image recording apparatus undetachably supporting image pick-up means and recording means and having two operation modes

The picture image recording device disclosed uses a recording medium which permits setting a plurality of recording tracks apart from each other for recording separate picture image signals on each of them. In the improvement made by this invention, the operating mode of the device is shiftable at least between two modes including a first mode in which an image recording operation is performed only on one recording track and a second mode in which an image recording operation is performed continuously or sequentially on a plurality of recording tracks.

Automatic control means for a picture image recording device

A light measuring device which is provided with a plurality of light sensitive elements and is arranged to selectively detect outputs of these light sensitive elements includes means for short-circuiting both terminals of the light sensitive element not required for detection in a light measuring mode selected out of different light measuring modes.

Light measuring device

The present invention relates to a camera with the main circuit boards and the sub-circuit boards comprising electrical circuit constructions constituted with resistance-conductor laminated constructions so designed that the insulating support on which a resistance material layer and a conductor material layer are laminated are processed by means of the selective etching and so on in such a manner that the resistance members are constituted with the resistance material layer while the conductor parts such as wirings, terminals and so on are constituted with the conductor material layer.

Camera with printed circuit boards comprising resistance-conductor

Object brightness information is measured and diaphragm aperture value is appex operated using the setting information of mounted lens and the photographing conditions an input to effect ON-OFF control of an automatic-manual change-over means. The change-over means is associated with the photographing mode change-over operation of a diaphragm setting means for displaying the photographing mode within a finder.

Photographing mode display device of a camera

A camera which is provided with a motor for driving a wind-up mechanism to perform film feeding and shutter charging and which is arranged to have photographing actions carried out one after another upon completion of the film feeding and shutter charging, a wind-up device has a switch which is arranged to force the wind-up mechanism into completing the winding up action thereof by means of the motor in response to depression of a rewinding button.

Wind-up device for camera

An exposure time control device includes electromagnets for causing corresponding leading and trailing shutter curtains in a camera to travel. A second timer circuit, which is adjustable, is arranged to count a correction time in response to operation of a first timer circuit which counts an exposure time for the camera. After the lapse of the correction count time of the second timer circuit, the electromagnet for the leading shutter curtain is actuated, and then the electromagnet for the trailing shutter curtain is actuated after the lapse of the exposure count time of the first timer circuit. Exposure time errors which would otherwise result from overlapping of the shutter curtains and response delay of the trailing shutter curtain electromagnet, thus can be corrected by adjustment of the second timer circuit.

Exposure time control device

A voltage detecting means is provided in a flash lamp firing circuit for detecting the attainment of the voltage of a storage capacitor to a satisfactory lamp firing voltage level to assure that a photographic camera associated with the flash lighting unit operates in a flash exposure range switched from a daylight exposure range only when a sufficient voltage is available to fire the lamp at the time of striking of the lamp. In one embodiment, the detecting means comprises two transistorized circuits having output terminals one of which is connected to the gate lead of a SCR in a discharge circuit of the lamp, and another output terminal which is arranged to be connectable to a light-emitting diode of the camera and therefrom connected to the gate lead of an electronic change-over switch for selection of the operating ranges of the camera, the light-emitting diode being arranged to be visible from the outside of the camera so that the operator is immediately aware if the storage capacitor voltage has attained the satisfactory firing level.

Flash lighting unit for a camera

The disclosed shutter control circuit presents a shutter time as an analog value and converts the same into a digital value by an A/D converter, then nullifies information below a prescribed step of shutter time out of thus digitally converted value for effecting shutter time control based on a digital value which is above said prescribed step. In such a type of shutter time control circuit, even when an analog value as a preset value contains a certain error, the shutter time control can be done with said error being corrected and thus it is very convenient. In this case, however, an error in a positive direction only can be corrected, and an error in a negative direction can not be corrected. The present invention has been completed in view of the above and is to provide a shutter time control circuit which can correct the above mentioned analog value or A/D converted digital value by a prescribed amount so that errors in both the positive direction and the negative direction can be corrected in the above mentioned type of shutter time control circuit.

Shutter time control circuit

In the disclosed camera a sound-making element is provided to produce warning signals or confirming signals for operation of a self-timer. A binary counter which digitally controls the camera controls the sound-making element. Warning signals and confirming signals for operation of a self-timer are distinguished from each other by a difference in oscillation pulses.

Camera having a sound-making element

A method whereby an integrated circuit element such as IC or LSI and the like on a printed circuit board and the external leads of the circuit element are electrically connected to the conductor patterns on the circuit board, in which holes are provided in the circuit element and the conductor patterns so as to effect quick and accurate positioning and mounting.

Electrical circuit elements combination

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Yokohama, Japan

Masanori Uchidoi