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Patent Searching and Data


Title:
FINDER DEVICE, IMAGING DEVICE, AND METHOD FOR CONTROLLING FINDER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/087713
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a finder device, an imaging device, and a method for controlling the finder device, with which it is possible to measure the transmittance of a neutral density (ND) filter for each region. A finder device according to a first embodiment of the present invention is provided with an optical finder for observing an optical image of a subject by an eyepiece unit, a display device for displaying information, a half mirror disposed in the optical path of the optical finder, an electronically variable ND filter that is inserted in the optical path of the optical finder closer to the subject side than is the half mirror and that is divided into a plurality of regions, a luminance information acquisition unit for acquiring luminance information pertaining to external light, a luminance measurement unit for measuring the luminance of external light entering each of the plurality of regions, and a transmittance calculation unit for calculating the transmittance of the electronically variable ND filter for each of the plurality of regions on the basis of the measured luminance and the acquired luminance information.

Inventors:
ISHIDA Kazuki (324 Uetake-cho 1-chome, Kita-ku, Saitama-sh, Saitama 24, 〒3319624, JP)
Application Number:
JP2018/037675
Publication Date:
May 09, 2019
Filing Date:
October 10, 2018
Export Citation:
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Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
G03B17/20; G03B7/099; G03B7/28; G03B11/00; G03B13/06; H04N5/225; H04N5/235
Domestic Patent References:
WO2012120952A12012-09-13
Foreign References:
JP2015233255A2015-12-24
JP2003078785A2003-03-14
JP2014048491A2014-03-17
JP2013088597A2013-05-13
JPH06258691A1994-09-16
Attorney, Agent or Firm:
NAKASHIMA Junko et al. (6F FFTP M0 BLDG, 1250 Takematsu Minamiashigara-sh, Kanagawa 11, 〒2500111, JP)
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