Title:
偏光板付きカメラ、監視カメラ、および偏光板
Document Type and Number:
Japanese Patent JP6432218
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a camera with a polarizing plate, which can capture a clear image while suppressing reflection in a visible light region and which suppresses darkening of an image in infrared imaging in a dark place.SOLUTION: The camera with a polarizing plate includes the following polarizing plate disposed at an imaging object side of a camera lens. The polarizing plate has a transmittance of 20% or more and 60% or less for light at a wavelength of 550 nm and a transmittance of 70% or more for light at a wavelength of 900 nm. The polarizing plate has a thermoplastic resin formed on at least one surface of a polarizing film.
Inventors:
Katsuhiro Yamamoto
Application Number:
JP2014175452A
Publication Date:
December 05, 2018
Filing Date:
August 29, 2014
Export Citation:
Assignee:
Sumitomo Bakelite Co., Ltd.
International Classes:
G03B11/00; G02B5/30; G03B15/00; H04N5/225
Domestic Patent References:
| JP2011102939A | ||||
| JP2011085900A |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi