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1. (WO2017150485) OPTICAL SYSTEM, IMAGING DEVICE PROVIDED WITH SAME, AND PROJECTION DEVICE
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Pub. No.: WO/2017/150485 International Application No.: PCT/JP2017/007614
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:
石原 圭一郎 ISHIHARA Keiichiro; JP
中野 正嗣 NAKANO Masatsugu; JP
Agent:
阿部 琢磨 ABE Takuma; JP
黒岩 創吾 KUROIWA Sogo; JP
Priority Data:
2016-04268604.03.2016JP
Title (EN) OPTICAL SYSTEM, IMAGING DEVICE PROVIDED WITH SAME, AND PROJECTION DEVICE
(FR) SYSTÈME OPTIQUE, DISPOSITIF D'IMAGERIE POURVU 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 10 having a front group 1, an opening aperture 3, and a rear group 2 in the stated order from the magnification side, wherein: the front group 1 includes a refraction surface 11a that is formed in a convex shape toward the magnification side; the rear group 2 includes a concave reflection surface 12b; and the relationships 0.7 ≤ |Rl|/Ll ≤ 1.5 and 2 ≤ |Rm|/Lm ≤ 7 are satisfied, where Rl is the radius of curvature of the refraction surface 11a (mm), Ll is the distance between the refraction surface 11a and the opening aperture 3 (mm), Rm is the radius of curvature of the reflection surface 12b (mm), and Lm is the distance between the opening aperture 3 and the reflection surface 12b (mm).
(FR) La présente invention concerne un système optique 10 comportant un groupe avant 1, une ouverture ouvrante 3 et un groupe arrière 2 dans l'ordre indiqué depuis le côté grossissement, dans lequel : le groupe avant 1 comprend une surface de réfraction 11a qui est formée en une forme convexe vers le côté grossissement; le groupe arrière 2 comprend une surface de réflexion concave 12b; et les relations 0,7 ≤ |Rl|/Ll ≤ 1,5 et 2 ≤ |Rm|/Lm ≤ 7 sont satisfaites, où Rl est le rayon de courbure de la surface de réfraction 11a (mm), Ll est la distance entre la surface de réfraction 11a et l'ouverture ouvrante 3 (mm), Rm est le rayon de courbure de la surface de réflexion 12b (mm), et Lm est la distance entre l'ouverture ouvrante 3 et la surface de réflexion 12b (mm).
(JA) 拡大側から順に、前群1、開口絞り3、及び後群2を有する光学系10であって、前群1は、拡大側に向かって凸形状の屈折面11aを含み、後群2は、凹形状の反射面12bを含み、屈折面11aの曲率半径をRl(mm)、屈折面11aと開口絞り3との間隔をLl(mm)、反射面12bの曲率半径Rm(mm)、開口絞り3と反射面12bとの間隔をLm(mm)、とするとき、0.7≦|Rl|/Ll≦1.5、2≦|Rm|/Lm≦7なる条件式を満足する。
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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)