Nikon Corporation

Nippon Kogaku K.k.

Lintec Corporation

Akira Katayama

Tadao Kai

Masanori Hasuda

Tetsuro Goto

Yoshio Imura

Etsuo Tanaka

Hiroshi Okano

Hiroshi Terunuma

Yukio Uemura

Hiroshi Wakabayashi

Hideya Inoue

Sueyuki Ohishi

Yoshiaki Tanabe

Susumu Sato

Daiki Tsukahara

Nobuhiko Terui

Tatsuo Amanuma

Yoshikazu Iida

Hiroyuki Tsuru

Kazuharu Imafuji

Noriyasu Kotani

Yoshiaki Ohtsubo

Toru Kosaka

Riichi Higaki

Jun Nagai

Hidenori Miyamoto

Hiroshi Hasegawa

Toshiyuki Nakamura

Kazuyuki Kazami

Satoshi Yamazaki

Hideo Kanno

Minoru Kato

Osamu Maida

Hitoshi Aoki

Kiyosada Machida

Shigemasa Sato

Yuji Katano

Noboru Akami

Toshiaki Hozumi

Yoshihisa Kitagawa

Naoki Watanabe

Koushi Yoshibe

Yasushi Sakagami

Kohei Tachikawa

Tomohisa Ikeno

Toshio Minagawa

Koichi Higashi

Shigenobu Maruoka

Hidefumi Obo

Mitsuru Higuchi

A camera includes a shutter unit for limiting the exposure time to a record medium, a shutter time setting unit for setting the shutter time of the shutter unit, a shutter drive and control unit for driving and controlling the shutter unit, a shutter condition detecting unit for detecting the condition of the shutter unit, a manifesting unit for manifesting the result detected by the shutter condition detecting unit, a manifestation control unit for driving and controlling the manifesting unit and a memory unit for previously storing inherent data to detect with the shutter condition detecting unit whereby a photographer is informed of the fact that the detection accuracy of the detecting element is insufficient for a shutter time, thus dealing with the situation. The manifestation control unit drives the shutter condition detecting unit, based on a shutter time set by the shutter time setting unit and inherent data stored in the memory unit, thus notifying the shutter condition detecting unit of the result.

Camera having the capability to detect and display insufficient shutter speed

A vibration reduction apparatus includes a vibration detector for detecting movement; and an image blur reduction mechanism including a vibration reduction optical system for preventing an image from blurring, and a drive mechanism for driving the vibration reduction optical system. The drive mechanism is controlled to drive the vibration reduction optical system in response to a detection signal from the vibration detector. The vibration detector is integrally mounted as a part of a mechanism unit including the vibration reduction mechanism.

Vibration reduction apparatus

A blur-correcting image pickup device includes, but is not limited to an image pickup optical system for picking up an image, a vibration-detecting device which detects vibrations of the image pickup device and generates an output relative to the detected vibrations, a blur-correcting device which corrects blurring of the image caused by the vibrations, a rangefinder which detects distance of the image to be picked up and generates an output relative to the detected image pickup distance, and an optical system setup device which sets up a specific image pickup condition for the image pickup optical system. The blur-correcting image pickup device further includes an arithmetic information generating device which generates a first arithmetic factor when the specific image pickup condition is set up and a second arithmetic factor corresponding to the output of the rangefinder when the specific image pickup condition is not set up by the optical system setup device and a drive control device which calculates corrective information based on the output of the vibration-detecting device and the output of the arithmetic information generating device to control the blur-correcting device based on the corrective information.

Anti-blur image pickup device

An image-shake correcting camera comprises an image shake correcting device for correcting image shakes caused by camera shakes and a photographic mode setting device for setting an operation condition of camera in photography, in which the image shake correcting device changes a correction property, based on the operation condition set by the photographic mode setting device.

Camera having an image blur suppression device

An antivibration device includes a correcting optical system to correct shake by moving at least a part of a photographic optical system, a support member to support the correcting optical system, and a lens mount member to support the shake correction mechanism. A shielding member is further provided on at least either the support member or the lens mount member so as to keep dust and other potentially damaging airborne material from entering the shake correction mechanism. The shielding member is provided so as to extend substantially parallel to the optical axis of the photographic optical system.

Antivibration device having shielding member to prevent influx of

A camera which prevents accidents which could lead to damage to the shutter when performing shutter time tests in the opened state of the back cover of a camera. The camera has a shutter to limit the exposure time of the recording medium which has been loaded, a measurement unit to measure, according to the action of the shutter, the time of the exposure to the recording medium which the shutter performs, and a back cover sensor to detect whether the back cover is open or closed when film or another recording medium has been loaded into the camera. The action of the measurement unit is inhibited when the back cover sensor detects that the back cover is open. The camera also has a drive unit for recording an image on the film or recording medium and a mode selection switch to select between a normal mode in which a photographic action is performed, in which the shutter and the drive unit are activated, and a test mode in which the shutter and the measurement unit are activated but not the drive unit. A shutter control unit may be used during testing so that the shutter is initially activated for an exposure time other than the minimum exposure time, when the shutter performs an exposure of the recording medium.

Camera with monitoring and testing of camera shutter operations

A vibration preventing camera includes a vibration amount detecting unit for detecting the amount of vibration, a vibration correcting unit for correcting vibration, a light measuring unit for measuring the light value at a subject, and a control unit for controlling the vibration correcting unit in consonance with a detection signal that is obtained by the light measuring unit and the vibration detecting unit, and for activating the vibration detecting unit after the length of exposure is determined by the light value at the subject that is obtained by the light measuring unit. More preferably, a vibration preventing camera further includes a self-timer unit, and when the self-timer unit is set for an exposure, the vibration detecting unit is activated after the timing count down for the self-timer unit begins.

Vibration preventing camera

A camera has a calculator which calculates a photographing condition suitable for a selected exposure mode. A driving device of the camera performs a photographing operation in accordance with a nominal value of an exposure parameter calculated by the calculator. The camera is provided with a measurement device which measures a real value of the exposure parameter in the photographing operation. The calculator is controlled to perform an exposure calculation on the basis of the real value of the exposure parameter obtained by the measurement device.

Camera and recording medium forwarding device suitable for use in a

A label with a metallic layer of controlled thickness comprising a transparent or semi-transparent film, a metallic layer which is formed by metal deposition, has a light transmittance of 3 to 70%, and is formed on one side of the film, and a layer of an adhesive material formed on the metallic layer. Alternatively, a protective layer may be formed on the metallic layer, and the layer of an adhesive material formed on the other side of the film. The label is transparent even though it shows metallic gloss, has remarkably beautiful appearance, and is suitable for artistic design.

Label with a metallic layer of controlled thickness

A shake preventing apparatus in a camera, comprises a shake detecting device for detecting an amount of shake upon small motion of the camera, a shake correcting device for correction-driving a photo taking optical system in a direction to keep an image on a plane of a film unshaken, based on the amount of shake detected by the shake detecting device, a shake correction limit determining device for determining a shake correction limit amount which is a limit for the shake correcting device to correct the shake, and a shutter controlling device for controlling a shutter to close when the amount of shake detected by the shake detecting device exceeds the shake correction limit amount determined.

Shake preventing apparatus in camera

A camera which can detect the actual opening/closing state of the camera shutter based on a signal reflected towards the shutter by a signal projection unit and received by a signal receiving unit. The signal received by the signal receiving unit is based on the reflectivity of the shutter and, therefore, the signal received by the signal receiving unit is different depending on whether or not the shutter is open or closed. The camera has a reflectivity state detection unit for determining the reflectivity status of the shutter. A reflectivity standard changing unit changes the detection standard of the signal receiving unit based on information output by the reflectivity state detection unit. In this manner, changes in reflectivity of the shutter, due to passage of time or increase in use, will not reduce the accuracy of the detection of the open/close status of the shutter.

Camera having shutter instrumentation device for measuring shutter speed

In a device, an angular velocity detector detects the angular velocity of a camera body and produces a signal conforming thereto. Whether the camera is performing pan shot is discriminated on the basis of the produced signal. Preferably, the discrimination is effected on the basis of a signal from which the high frequency component of the signal has been eliminated. Also, in one mode, the device sets an appropriate shutter speed when it is detected that the mode is pan shot.

Pan shot device for a camera

A shutter of a camera is provided with a shutter trip detecting device includes LEDs and PTRs. Measured are tripping timings of leading and trailing curtains for admitting and intercepting object light to an aperture. An exposure time on a film and a tripping time (curtain velocity) of each curtain are thus detected. The detected result is compared with a fiducial value, and an alarm is given according to the need. There are detected mechanical fluctuation elements relative to the shutter, e.g., a scatter of the exposure time on the film, a partial uneveness of the exposure time and an influence on the exposure time due to a fault in a driving mechanism. The alarm can be thus given to the user, and an automatic adjustment can be made. The shutter trip detecting device includes the shutter leading/trailing curtains, the LEDs and PTRs which detect tripping thereof.

Camera having a shutter measuring apparatus

Camera having animage blur suppression device

A camera having an optical system which is shiftable to compensate for vibrations affecting the camera, a shift mechanism which shifts the optical system along an axis, and an urging mechanism. The urging mechanism provides an urging force along the axis to urge the optical system and to assist the shift mechanism in shifting the optical system. The urging force of the urging mechanism is approximately 1.5 to 5 times the weight of the optical system. Moreover, a feed screw mechanism includes a male portion and a female portion which cooperate, via a helical groove, to shift the optical system. The feed screw mechanism has an angle of friction and the helical groove has a lead angle that is smaller than the angle of friction.

Camera with vibration compensation device having anti-vibration lens

Growing community of inventors

Koganei, Japan

Akira Katayama