Title:
シーンを監視するカメラの焦点調節
Document Type and Number:
Japanese Patent JP6535378
Kind Code:
B2
Abstract:
Focusing of a monitoring camera (100) with day and night functionality comprises selecting a focusing day mode or a focusing night mode based on the camera being in day mode or night mode. In 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.
Inventors:
Franson, Kent
Baryrun, Bjorn
Baryrun, Bjorn
Application Number:
JP2017231461A
Publication Date:
June 26, 2019
Filing Date:
December 01, 2017
Export Citation:
Assignee:
Axis Arb
International Classes:
G02B7/28; G03B11/00; G03B13/36; G03B15/00; G03B17/56; H04N5/225; H04N5/232; H04N5/243
Domestic Patent References:
| JP2005242105A |
Foreign References:
| US20160142681 | ||||
| US20140063261 | ||||
| CN204836402U |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation