Composite camera apparatus

• US 4,763,146 A
• Filed: 02/02/1987
• Issued: 08/09/1988
• Est. Priority Date: 02/06/1986
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Niikura, Tsutomu
• Primary Examiner(s): Gellner, Michael L.
• Application Number:
  US07/009,813
• Time in Patent Office: 554 Days
• Field of Search: 354/75, 354/76, 354/219
• US Class Current: 348/64
• CPC Class Codes: G03B 17/48 adapted for combination with other photographic or optical apparatus
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof
• CPC Class Codes: H04N 23/60 Control of cameras or camera modules
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure

Abstract

A composite television/film camera in which, in one embodiment, a movable mirror provided for selectively permitting the light having passed through the lens to be incident upon either a photosensitive film or the light receiving surface of a television camera. When the mirror is repositioned to divert light to the film, a predetermined segment of the video signal which immediately preceded the repositioning of the mirror is read from an electronic memory and is outputted as the video signal so that no apparent interruption of the video signal occurs when a film exposure is being made.

Claims

1. A composite camera apparatus comprising:

lens means upon which light from a subject is incident;

film holding means for supporting a photosensitive film upon which an image of the subject is formed by the light having passed through said lens means;

image pickup means provided with a light receiving surface upon which an image of the subject is formed by the light having passed through said lens means for producing a pickup output signal in response to the image formed upon the light receiving surface;

video signal generating means connected to said image pickup means for continuously producing a video signal based on the pickup output signal obtained from said image pickup means, even when a photographic image is being formed upon the film;

video signal processing means connected to said video signal generating means for producing a processed video signal appropriate for magnetic recording based on said video signal; and

wherein the light is unattenuated in passing from the lens means to said film and said image pickup means.

2. A composite camera apparatus according to claim 1 further comprising magnetic recording means contained within the camera and connected to said video signal processing means for recording said processed video signal on a magnetic tape.

3. A composite camera apparatus comprising:

lens means upon which light from a subject is incident;

a film holder for supporting a photosensitive film upon which an image of the subject is formed by the light having passed through said lens means;

an image pickup means provided with a light receiving surface upon which an image of the subject is formed by the light having passed through said lens means for producing a pickup output signal in response to the image formed upon the light receiving surface;

a movable mirror selectively positionable at a first position for permittng the light having passed through said lens means to be incident upon said light receiving surface of the image pickup means and at a second position for permitting the light having passed through said lens means to be incident upon said photosensitive film, and wherein said mirror control means is selectively operable by the user of the camera to cause said movable mirror to be positioned at said second position in synchronism with the occurrence of the next vertical blanking period in said video signal after the user causes the mirror control means to be operable; and

video signal generating means connected to said image pickup means for continuously producing a video signal based upon the pickup output signal obtained from said image pickup means.

8. A composite camera apparatus according to claims 3, 4 or 7 further comprising video signal processing means connected to said video signal generating means for producing a processed video signal appropriate for magnetic recording based on said video signal.

9. A composite camera apparatus according to claim 8 further comprising magnetic recording means connected to said video signal processing means for recording said processed video signal on a magnetic tape.

10. A composite camera apparatus according to claim 8 further comprising audio signal generating means for producing an audio signal, audio signal processing means for producing a processed audio signal appropriate for magnetic recording based on said audio signal, and adding means for mixing said processed audio signal with said processed video signal so that said processed audio signal is recorded together with said processed video signal.

4. A composite camera apparatus comprising:

lens means upon which light from a subject is incident;

a film holder for supporting a photosensitive film upon which an image of the subject is formed by the light having passed through said lens means;

an image pickup means provided with a light receiving surface upon which an image of the subject is formed by the light having passed through said lens means for producing a pickup output signal in response to the image formed upon the light receiving surface;

a movable mirror selectively positionable at a first position for permitting the light having passed through said lens means to be incident upon said light receiving surface of the image pickup means and at a second position for permitting the light having passed through said lens means to be incident upon said photosensitive film; and

video signal generating means connected to said image pickup means for continuously producing a video signal based upon the pickup output signal obtained from said image pickup means; and

memory means operative to electronically store each successive predetermined segment of the pickup output signal obtained from said image pickup device in such a manner that each successive stored segment replaces the previously stored segment when said movable mirror is positioned at said first position and to permit the last stored segment to be read therefrom when said movable mirror is positioned at said second position.

5. A composite camera apparatus according to claim 4 wherein said predetermined segment of the pickup output signal is two successive fields.

6. A composite camera apparatus according to claim 4 and further comprising:

mirror control means selectively operative by the user of the camera to cause said movable mirror to be positioned at said second position in synchronism with a period which corresponds to the next vertical blanking period in a video signal derived from said pickup output signal and occurring after the user causes the mirror control means to position the mirror at the second position.

7. A composite camera apparatus comprising:

lens means upon which light from a subject is incident;

a film holder for supporting a photosensitive film upon which an image of the subject is formed by the light having passed through said lens means;

an image pickup means provided with a light receiving surface upon which an image of the subject is formed by the light having passed through said lens means for producing an output signal in response to the image formed upon the light receiving surface;

a movable mirror selectively positionable at a first position for permitting the light having passed through said lens means to be incident upon said light receiving surface of the image pickup means and at a second position for permitting the light having passed through said lens means to be incident upon said photosensitive film;

mirror control means selectively operative by the user of the camera to cause said movable mirror to be positioned at said second position in synchronism with a period which corresponds to the next vertical blanking period in said image pickup means output signal and occurring after the user causes the mirror control means to position the mirror at the second position;

memory means operative to store each successive predetermined segment of said image pickup means output signal in such a manner that each segment is replaced by the next successive one when said movable mirror is positioned at said first position and to permit the segment stored therein to be read therefrom when said movable mirror is positioned at said second position; and

video signal generating means connected to said image pickup means and said memory means for reading the segment stored in the memory means and for producing a video signal based upon said image means pickup output signal and the segment read from said memory means.