Title:
光学装置及び撮像システム
Document Type and Number:
Japanese Patent JP6392737
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an optical device and an imaging system, capable of forming a virtual entire celestial sphere image in which a deterioration of an image quality is suppressed while suppressing the number of cameras set in a circumference of a virtual viewpoint.SOLUTION: An optical device (camera systems 6-1 to 6-3) is used when a virtual image is formed on the basis of an image from imaging devices (cameras C1 to C3) set at a position out of the virtual view point as if it was photographed in a virtual view point 11. The optical device comprises convex lenses L1 to L3 in which the position of the virtual view point is set as a focal point; and reflection parts M1 to M3 which reflect a light beam incident from the convex lens to the imaging device, have a mirror surface with a form along an ellipse or object surface with the position of an optical center of the imaging device serving as a focal point.SELECTED DRAWING: Figure 2
Inventors:
Kosuke Takahashi
Mikami bullet
Mariko Igawa
Akira Kojima
Mikami bullet
Mariko Igawa
Akira Kojima
Application Number:
JP2015235175A
Publication Date:
September 19, 2018
Filing Date:
December 01, 2015
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04N5/232; G03B15/00; G03B37/00; G06T3/00; H04N5/247
Domestic Patent References:
| JP2010019924A | ||||
| JP9065247A | ||||
| JP2006011103A | ||||
| JP11149901A |
Attorney, Agent or Firm:
Shiga International Patent Office