Motion picture camera with complete or partial frame superimposi

Details Motion picture camera with complete or partial frame superimposi Motion picture camera with complete or partial frame superimposi

1990-03-12

1994-02-08

Hayes, Monroe H.

Optics: motion pictures

Camera with plural fields of view

352 90, 352131, 352133, G03B 1918

Patent

active

052852253

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a motion-picture camera with taking optics for projecting frames onto motion-picture film advanced along a film path by a film transport mechanism, and with an additional frame projection device located in the vicinity of the film path.
It is known that additional information can be projected onto the frames projected onto motion-picture film by taking optics while making motion-picture films using a motion-picture camera. The additional information consists of alphanumeric, alphabetical, or numerical data, usually projected onto the upper or lower edge of the frame. The data are reflected electronically, using light-emitting diodes, optical fibers or the like, located in the vicinity of the film plane and controlled electronically.
A keyboard mounted on the motion-picture camera is used for data entry, but this keyboard can also be provided separately and the corresponding data transmitted from it to the motion-picture camera through an interface. However, data superimposed on parts of a film exposed by the taking optics of the motion-picture camera are insufficient for comprehensive displays, especially in medical technology and for animation.
German A 24 12 492 teaches a motion-picture camera with a taking optics for projecting frames onto a motion-picture film, said camera having an additional device for recording data such as time, serial numbers, code numbers, or the like onto the motion-picture film. With the camera shutter open, the frame is simultaneously projected onto the motion-picture film by a digital entry device via an image amplifier for projecting frames onto the motion-picture film.
The digital entry device consists of a digital display circuit, optically connected by an optical system with the film gate of the motion-picture camera, with a control circuit located ahead of the digital display circuit, said control circuit being connected to an analog signal source. Consequently, analog signals in digital form can be projected onto the motion-picture film via an analog/digital converter and a scanning and holding circuit as digital signals with the aid of semiconductor display numbers onto the motion-picture film.
In a data and signal superimposition method known from German A 24 12 492, data reflection and projection of an x-ray are accomplished by means of a cathode ray tube and an optical system as well as via a single film gate, but only limited information superimposition is possible, since the additional information projected in digital form is superimposed onto a limited portion of the frame. For this purpose, to record the actual (x-ray) image, a portion of the frame must be screened so that the digital additional information can be superimposed onto these parts of the frame.
German A 28 11 289 teaches a motion-picture camera with a device for recording additional information onto a motion-picture film, with the display from an optical information output device with a screen image being reflected into the taking beam of the motion-picture camera via recording optics. A switchable mirror is located in the reflecting path, said mirror alternately projecting the additional information onto the motion-picture film and reflecting a finder image into the finder of the motion-picture camera. Consequently, the reflected information can be observed in the finder of the motion-picture camera.
Reflection of the additional information thus takes place via the finder of the motion-picture camera using a reflecting beam path, so that separate recording of the frame and the additional information and possibly separate observation of the photographed object and the additional information is not possible.
German A 30 31 100 teaches a method and a device for projecting information onto a motion-picture film, with the information being entered via a function keypad into a microcomputer connected with the film camera, stored, and converted into light pulses by the triggering process of the film camera, said pulses being emitted by an LED strip through optical fibers onto the

REFERENCES:
patent: 1143522 (1915-06-01), Faber
patent: 1593967 (1926-07-01), Debrie
patent: 1907253 (1933-05-01), Debrie
patent: 2250442 (1941-07-01), Abell
patent: 2907253 (1959-10-01), McDonald
patent: 2916977 (1959-12-01), St. George
patent: 3111887 (1963-11-01), Alexander
patent: 3952319 (1976-04-01), Hirata et al.
patent: 4422745 (1983-12-01), Hopson

Affiliated with

Also associated with

Rating

Motion picture camera with complete or partial frame superimposi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motion picture camera with complete or partial frame superimposi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion picture camera with complete or partial frame superimposi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-701294