1993-02-01
1994-11-15
Perkey, W. B.
354106, 354217, 3542891, G03B 1718, G03B 1724, G03B 1736, G03B 2900
Patent
active
053652924
ABSTRACT:
An indicator device for a camera for displaying the value of an item of information related to photographic conditions includes an indicator means, which includes a scale plate with a central point, a number of index marks being inscribed on the scale plate around the perimeter of a circle which has the central point as its center and the angular positions of the index marks relative to the central point being a subset of the angular positions derived by subdividing the circumference of the circle into sixty equal divisions, and an indicating pointer which is rotatable around the central point against the scale plate. The indicating pointer is rotationally driven against the scale plate by a drive means such as a stepper motor.
Thereby, by intuitive analogy with the face of a clock, a user can perceive the value of the item of information from the angular position of the pointer relative to the index marks. Optionally several indicating pointers may be provided and may be driven by the drive means so as together to display the value of a single item of information related to photographic conditions by their angular positions relative to the index marks, considered together.
REFERENCES:
patent: 2552275 (1951-05-01), Harvey
patent: 2930300 (1960-03-01), Danders et al.
patent: 3512353 (1970-05-01), Blum
patent: 5195062 (1993-03-01), Sase et al.
patent: 5218399 (1993-06-01), Izumi et al.
Aoki Hitoshi
Katano Yuji
Tsukakara Daiki
Wakabayashi Hiroshi
Nikon Corporation
Perkey W. B.
LandOfFree
Indicator device for camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Indicator device for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indicator device for camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1101185