FOCUSING OF A CAMERA MONITORING A SCENE

The present invention provides focusing of a monitoring camera (100) with day and night functionality, which comprises selecting a focusing day mode or a focusing night mode based on the camera being in day mode or night mode. In the focusing day mode, an IR laser range meter (110) will measure a re...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRANSSON KENT, BERGLUND BJOERN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The present invention provides focusing of a monitoring camera (100) with day and night functionality, which comprises selecting a focusing day mode or a focusing night mode based on the camera being in day mode or night mode. In the focusing day mode, an IR laser range meter (110) will measure a reference distance continuously, and in the focusing night mode, the IR laser range meter will only measure reference distance in response to a focus trigger signal being activated, and during a predetermined time period. The focus distance of the camera is set based on the measured reference distance. The present invention enables the camera, having the day and night functionality, to use an active auto-focus function. 주간 및 야간 기능을 갖는 모니터링 카메라(100)의 포커싱은 카메라가 주간 모드 또는 야간 모드에 있는지에 기초하여 포커싱 주간 모드 또는 포커싱 야간 모드를 선택하는 것을 포함한다. 포커싱 주간 모드에서, IR 레이저 거리 측정기(110)는 기준 거리를 연속적으로 측정할 것이고, 포커싱 야간 모드에서 IR 레이저 거리 측정기는 포커스 트리거 신호가 활성화되는 것에 응답하여 그리고 미리 결정된 시간 기간 동안에만 기준 거리를 측정할 것이다. 카메라의 초점 거리는 측정된 기준 거리를 기초하여 설정된다.