MONITORING CAMERA

In a camera having an automatic opening/closing mechanism of an iris, there is a problem that the iris cannot be operated in a case where the iris has not been operated for a long period of time. According to the present invention, a monitoring camera includes: a light receiving unit (201); an iris...

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Bibliographic Details
Main Authors TAKEYA, Akito, ISHII, Takanori, MIWA, Takuya
Format Patent
LanguageEnglish
French
German
Published 30.01.2019
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:In a camera having an automatic opening/closing mechanism of an iris, there is a problem that the iris cannot be operated in a case where the iris has not been operated for a long period of time. According to the present invention, a monitoring camera includes: a light receiving unit (201); an iris (202) for adjusting an amount of light passing through the light receiving unit; an iris opening/closing unit (203); an imaging element (204) for converting light having passed through the light receiving unit (201) into a video signal; a light amount feedback opening/closing controlling unit (208) for controlling the iris opening/closing unit (203) so that the iris (202) is opened or closed on the basis of a luminance of the video signal; and an opening/closing controlling unit (209) for controlling the iris opening/closing unit (203) so that the (202) iris is opened or closed not on the basis of the luminance of the video signal but in a case where a predetermined condition is satisfied.
Bibliography:Application Number: EP20160895347