Title:
【発明の名称】テレビジョンカメラ
Document Type and Number:
Japanese Patent JP3115347
Kind Code:
B2
Abstract:
PURPOSE: To improve the identification property of optimum optical focusing on the image-receiving surface of an electronic finder 9 in a television camera, provided with an optical focusing device 6 and the electronic finder 9, a high- definition camera for example. CONSTITUTION: The high frequency signal components of the video signals of a camera modulated by the oscillator signals of a relatively high frequency are added to finder signals. At that time, the video signals are added through a high-pass filter 11 to one input side of a modulator 12, and the AC voltage signals of a high frequency generated from an oscillator 13 are added to the other input side of the modulator 12. The output signals of the modulator 12 are added to one input side of an addition stage 14, the video signals of the camera are added to the other input side of the addition stage 14 and further, the output signals of the addition stage 14 are led to the reproducing tube of the electronic finder 9.
Inventors:
Flors Bernardus Van den Helik
Marinus Cornelis Willem Van Bourg
Marinus Cornelis Willem Van Bourg
Application Number:
JP10792991A
Publication Date:
December 04, 2000
Filing Date:
May 14, 1991
Export Citation:
Assignee:
BTS Broadcast TV Geyon Systems Gezershyaft Mitsuto Beshiyu Renktel Haftung
International Classes:
H04N5/21; H04N5/225; H04N5/232; (IPC1-7): H04N5/225; H04N5/232
Domestic Patent References:
| JP62104278A | ||||
| JP6017068U |
Attorney, Agent or Firm:
Toshio Yano (2 outside)
Previous Patent: DISPERSANT FOR COATING MATERIAL OR INK, AND COATING MATERIAL OR INK CONTAINING SAME
Next Patent: THERMOPLASTIC MOLDING COMPOSITION
Next Patent: THERMOPLASTIC MOLDING COMPOSITION