Television camera system

• US 4,472,740 A
• Filed: 08/26/1982
• Issued: 09/18/1984
• Est. Priority Date: 08/26/1981
• Status: Expired due to Term

• Current Assignee: Fuji Photo Optical Co. Ltd (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Optical Co. Ltd (Fujifilm Holdings Corporation)
• Inventors: Doi, Yoshikazu
• Primary Examiner(s): Rubinson, G. Z.
• Assistant Examiner(s): Lev, Robert
• Application Number:
  US06/411,822
• Time in Patent Office: 754 Days
• Field of Search: 358/41, 358/50, 358/51, 358/55, 358/214, 358/209, 358/225, 358/226
• US Class Current: 348/361
• CPC Class Codes: H04N 23/663 for controlling interchangeable camera parts based on electronic image sensor signals

Abstract

A television camera system using any television lens and camera in combination achieves automatic video control. The television camera actually used in the television camera system has an erasable memory having memorized therein optical and/or electrical regulation values of the television camera with respect to a standardized television lens for forming the best images or the intended images. Similarly, the television lens actually used in the television camera system has an erasable memory having memorized therein optical and/or electric regulation values of the television camera with respect to a standardized television camera for forming the best images or the intended images. The regulation values read out from these memories are used to control the amount of regulation of the camera control unit.

Claims

1. A television camera system adapted to use interchangeable television cameras and lenses in any combination, which comprises:

a television camera having erasable memory means having memorized therein optical and/or electric control values by which the television camera is, when used in combination with a standardized television lens having optimum optical characteristics, adjusted so as to form the best or the intended images; and

a television lens having erasable memory means having memorized therein optical and/or electric control values by which the television camera is, when used in combination with a standardized television camera having optimum optical and electric characteristics, adjusted so as to form the best or the intended images.

2. A television camera system as defined in claim 1, wherein said optical and/or electric control values memorized in the memory means are the amounts of deviation from standardized values.

3. A television camera system as defined in claim 2, wherein said erasable memory means is an ultraviolet light erasable and electrically programmable read only memory (UVEPROM) or an electrically erasable and programmable read only memory (EEPROM).

4. A television camera system as defined in claim 3, which further comprises means for giving the address of the memory to be read out in dependence on variations of zoom, iris position and focus setting.

5. A television camera system as defined in claim 4, wherein said addressing means comprises variable resistors whose resistance varies with movements of optical elements of the television lens, and A-D converters for converting voltages output from said variable resistors into digital signals.