Title:
ELECTRONIC IMAGE PICKUP DEVICE
Document Type and Number:
Japanese Patent JP3699732
Kind Code:
B2
Abstract:
PURPOSE: To enhance the use efficiency of stroboscopic light and to improve the practical effect of the use of a stroboscope by automatically performing stroboscopic light emission, and at the same time, controlling a diaphragm to an open side at the time of low illuminance and backlight.
CONSTITUTION: By a microcomputer 20, the exposure time of a CCD 3 or shutter speed is determined, and by the timing generation circuit 21 of the CCD 3 by the command of the microcomputer 20, exposure period timing is generated. By a CCD drive circuit 22, the CCD 3 is driven. Further, a Y signal which passes a CDS circuit 4 and an LPE 5 is inputted in a video level detection circuit 23, and the microcomputer 20 is made to recognize the exposure state at each point of time as the average voltage level of the Y signal. Then, the microcomputer 20 determines shutter speed, and at the same time, controls a diaphragm control part 24 to be a diaphragm control means.
Inventors:
Kuniaki Saito
Application Number:
JP12922193A
Publication Date:
September 28, 2005
Filing Date:
May 31, 1993
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
H04N5/238; (IPC1-7): H04N5/238
Domestic Patent References:
| JP5115036A | ||||
| JP4061978U | ||||
| JP7046461A | ||||
| JP2125577A | ||||
| JP2101442A |
Attorney, Agent or Firm:
Susumu Ito