Title:
FARM LAND PHOTOGRAPHING CAMERA
Document Type and Number:
WIPO Patent Application WO/2020/022259
Kind Code:
A1
Abstract:
[Problem] To provide a camera suitable for photographing a farm land using an unmanned air vehicle for growth condition analysis. [Solution] Provided is a camera which comprises a lens, a beam splitter, two pairs of bandpass filters, and an image sensor. The camera is structured such that a light beam that has passed through the lens is split by the beam splitter into two light beams and a second light beam that reach the image sensor via the respective bandpass filters. Further, the unmanned air vehicle is provided with a member for reflected light calibration which is allowed to enter the angle of view of the camera at all times, thereby making it possible to accurately measure reflected light without being affected by external conditions.
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Inventors:
WAKE CHIHIRO (JP)
YANAGISHITA HIROSHI (JP)
NISHIKATA TAKEHARU (JP)
YANAGISHITA HIROSHI (JP)
NISHIKATA TAKEHARU (JP)
Application Number:
PCT/JP2019/028645
Publication Date:
January 30, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
NILEWORKS INC (JP)
International Classes:
H04N5/225; B64C39/02; B64D47/08; G03B11/00; G03B15/00; G03B19/06; G03B37/00; H04N5/222; H04N5/232
Domestic Patent References:
| WO2016208415A1 | 2016-12-29 | |||
| WO2017221756A1 | 2017-12-28 | |||
| WO2012073519A1 | 2012-06-07 |
Foreign References:
| JP2012060411A | 2012-03-22 | |||
| JP2018105691A | 2018-07-05 | |||
| JP2018070010A | 2018-05-10 |
Attorney, Agent or Firm:
KASUKAWA Toshio (JP)
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