Invention Grant
- Patent Title: Multiband camera, and multiband image capturing method
- Patent Title (中): 多频带摄像头,多频带摄像方式
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Application No.: US14543387Application Date: 2014-11-17
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Publication No.: US09307169B2Publication Date: 2016-04-05
- Inventor: Kenichi Kodama
- Applicant: Nikon Corporation
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Shapiro, Gabor and Rosenberger, PLLC
- Priority: JP2010-255641 20101116
- Main IPC: H04N5/225
- IPC: H04N5/225 ; H04N5/369 ; G01J3/02 ; G01J3/28 ; G01J3/36 ; G02B27/10 ; G02B27/12 ; G03B11/00 ; G03B17/02 ; H04N9/04 ; G01J3/12

Abstract:
A multiband camera comprises: a band-pass filter having four or more optical filters; a microlens array having arrayed microlenses; a photoelectric conversion element including a plurality of pixels; and a measurement unit for measuring spectral intensity. The multiband camera satisfies the expression below, where Pl is a pitch between the microlenses, Ps is a pitch between the pixels, n is a number of pixels corresponding to one microlens, u is an effective dimension in a prescribed direction of the pixels, t is a dimension in the prescribed direction of a real image that the band-pass filter forms on a plurality of two-dimensionally arrayed pixels, Na is a number of microlenses arrayed in the prescribed direction, L is a distance from an exit pupil to the microlens, and f is a focal length of the microlens. [ Expression 14 ] ( 1 - f L ) nPs - 3 Ps - u - t Na ≤ Pl ≤ ( 1 - f L ) nPs + 3 Ps - u - t Na
Public/Granted literature
- US20150146075A1 MULTIBAND CAMERA, AND MULTIBAND IMAGE CAPTURING METHOD Public/Granted day:2015-05-28
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