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1. (WO2017150492) OPTICAL SYSTEM, AND IMAGING APPARATUS AND PROJECTION APPARATUS PROVIDED WITH SAME
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Pub. No.: WO/2017/150492 International Application No.: PCT/JP2017/007645
Publication Date: 08.09.2017 International Filing Date: 28.02.2017
IPC:
G02B 17/08 (2006.01) ,B62D 1/04 (2006.01) ,G02B 13/18 (2006.01) ,H04N 5/74 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
17
Systems with reflecting surfaces, with or without refracting elements
08
Catadioptric systems
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
1
Steering controls, i.e. means for initiating a change of direction of the vehicle
02
vehicle-mounted
04
Hand wheels
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13
Optical objectives specially designed for the purposes specified below
18
with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
74
Projection arrangements for image reproduction, e.g. using eidophor
Applicants:
キヤノン株式会社 CANON KABUSHIKI KAISHA [JP/JP]; 東京都大田区下丸子3丁目30番2号 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 1468501, JP
Inventors:
中野 正嗣 NAKANO Masatsugu; JP
Agent:
阿部 琢磨 ABE Takuma; JP
黒岩 創吾 KUROIWA Sogo; JP
Priority Data:
2016-04268304.03.2016JP
Title (EN) OPTICAL SYSTEM, AND IMAGING APPARATUS AND PROJECTION APPARATUS PROVIDED WITH SAME
(FR) SYSTÈME OPTIQUE, DISPOSITIF D'IMAGERIE ÉQUIPÉ DE CELUI-CI, ET DISPOSITIF DE PROJECTION
(JA) 光学系、それを備える撮像装置及び投影装置
Abstract:
(EN) An optical system 100 is provided with, sequentially from a magnification side: a first group G1; an aperture stop STO; and a second group G2. The second group G2 includes: a total reflection surface 52; and a concave reflection surface 53. Light from the magnification side, which has passed through the aperture stop STO, is completely reflected on the total reflection surface 52, and then reflected on the reflection surface 53 to be transmitted through the total reflection surface 52. The condition of -0.6≤Rm/Rt≤0.6 is satisfied, when Rm (mm) represents the curvature radius of the reflection surface 53, and Rt (mm) represents the curvature radius of the total reflection surface 52.
(FR) L'invention concerne un système optique (100) équipé dans l'ordre, depuis un côté agrandissement, d'un premier groupe (G1), d'un diaphragme d'ouverture (STO) et d'un second groupe (G2). Le second groupe (G2) contient une face réflexion totale (52) et une face réflexion (53) en forme de creux. Une lumière provenant du côté agrandissement et passant au travers du diaphragme d'ouverture (STO), est réfléchie par la face réflexion (53) est transmise par la face réflexion totale (52) après réflexion totale par la face réflexion totale (52). Lorsque le rayon de courbure de la face réflexion (53) est représenté par Rm(mm), et que le rayon de courbure de la face réflexion totale (52) est représenté par Rt(mm), alors la condition -0,6≦Rm/Rt≦0,6 est satisfaite.
(JA) 拡大側から順に、第1群G1、開口絞りSTO、及び第2群G2を備える光学系100であって、第2群G2は、全反射面52と、凹形状の反射面53と、を含み、開口絞りSTOを通過した拡大側からの光は、全反射面52で全反射した後、反射面53で反射されて全反射面52を透過しており、反射面53の曲率半径をRm(mm)、全反射面52の曲率半径をRt(mm)、とするとき、-0.6≦Rm/Rt≦0.6なる条件を満足する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)