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Class 396/224 - Photometer lock


Subclass of Class 396 - Photography
Definition: Subject matter having means to allow a camera operator to
No. of patents: 12
Last issue date: 09/24/2002


NumberTitleIssue Date
6456795Camera with a display device and operation keys
In a multifunction camera, an area selector is used both as an operation key in a first selection mode for selecting the focus detection area of the focus detection device, and as an operation key in a second selection mode for selecting the function sett...
09/24/2002
6295415Camera
A camera having a magnetic recording circuit for recording information in a magnetic recording part of a film at each of photographing frames of the film is arranged such that, in an automatic exposure bracketing mode or an AE lock mode, information indic...
09/25/2001
6144804Camera with visual line detection capability
A camera which has a visual line detection device to detect the visual line of a photographer, and which inhibits visual line detection and automatic focus adjustment operations when these operations are unnecessary. Visual line detection may be inhibited...
11/07/2000
5832321Camera
In a camera of the present invention, when a shutter button is depressed half, a focusing and a photometry are executed. If the shutter button is held in a state of being depressed half, the results are retained. In this case, if an MF button is depressed...
11/03/1998
4908651Exposure control device for a camera
An exposure control device for a camera having light measuring elements capable of outputting an average light measurement corresponding to the brightness of the entire scene to be photographed, and outputting a spot light measurement corresponding to the...
03/13/1990
4615601Exposure control apparatus of a camera
An automatic exposure control apparatus for a camera has the shutter release button and the memory shutter release button as switches with slidable contacts, a photodetector for detecting brightness of an object, a capacitor for holding the detected photo...
10/07/1986
4455069Camera with EE lock
In the disclosed camera, a lock selecting arrangement sets a light measuring circuit either into an ordinary photographic mode or a lock mode in which a light measurement at a particular moment is locked so as to set the camera to that measurement despite...
06/19/1984
4329028Memory locking means for digital exposure control device in cameras
In a digital exposure control device for cameras including an A-D converter connected with a light measuring circuit and a memory element connected therewith for memorizing the output of the A-D converter, a one-shot is connected between the A-D converter...
05/11/1982
4302083Automatic exposure control camera with means to lock continuously renewed exposure control data in a memory
In the automatic exposure control camera disclosed, a memory has data stored therein on the basis of the object brightness and is periodically reset by a reset device to obtain new brightness data, while an exposure control controls exposure on the basis ...
11/24/1981
4232955Memory locking means of an exposure control circuit for a camera
In a photographic camera provided with an exposure control circuit including a light measuring circuit which measures scene brightness and a memory circuit which memorizes the output of the light measuring circuit, a switching circuit is connected between...
11/11/1980
4034385Camera with a single automatically or manually operable memory switch
A camera which has only a single memory switch capable of being either automatically or manually operated. This single memory switch is connected between a memory capacitor and a light-responsive structure for storing in the memory capacitor at least part...
07/05/1977
3936843Camera with optionally operable manual controls
A single lens reflex camera which measures internally-received light and which has a circuit for automatically determining exposure time and including a capacitor which stores an electrical quantity corresponding to the amount of received light, this capa...
02/03/1976
 
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