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Patent Searching and Data


Title:
PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/061274
Kind Code:
A1
Abstract:
Provided is an image capture device comprising the following: a shared section 20 which is used in common by a projection optical system T1 and an image capture optical system T2; a projection-dedicated part 30 which is used only by the projection optical system T1; an image capture-dedicated part 40 which is used only by the image capture optical system T2; and an illumination optical system 10 for illuminating an image display element 31. The shared section 20 includes a projection lens group 21, an optical path splitting element 22, and an aperture stop ST for determining the F-number of the image capture optical system T2. The projection-dedicated part 30 includes the image display element 31. The image capture-dedicated part 40 includes an image capture element 41. The illumination optical system 10 includes a brightness control unit 13 for determining the F-number of the projection optical system T1. The maximum value of the light-flux diameter of image capture light which passes through the aperture stop ST is larger than the maximum value of the light-flux diameter of the projection light which passes through the aperture stop ST.

Inventors:
SANO EIGO (JP)
Application Number:
PCT/JP2016/077793
Publication Date:
April 13, 2017
Filing Date:
September 21, 2016
Export Citation:
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Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G03B21/14; G02B17/08; G03B21/00
Foreign References:
JP2003044839A2003-02-14
JP2011237610A2011-11-24
JP2013124941A2013-06-24
Attorney, Agent or Firm:
FUKUDA, Mitsuhiro (JP)
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