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1. (WO2019026447) PROJECTION OPTICAL SYSTEM AND PROJECTOR
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Pub. No.: WO/2019/026447 International Application No.: PCT/JP2018/023248
Publication Date: 07.02.2019 International Filing Date: 19.06.2018
IPC:
G02B 17/08 (2006.01) ,G02B 13/18 (2006.01) ,G03B 21/00 (2006.01) ,G03B 21/14 (2006.01) ,G03B 21/28 (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
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
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21
Projectors or projection-type viewers; Accessories therefor
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21
Projectors or projection-type viewers; Accessories therefor
14
Details
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21
Projectors or projection-type viewers; Accessories therefor
14
Details
28
Reflectors in projection beam
Applicants:
ソニー株式会社 SONY CORPORATION [JP/JP]; 東京都港区港南1丁目7番1号 1-7-1, Konan, Minato-ku, Tokyo 1080075, JP
Inventors:
安井 利文 YASUI, Toshifumi; JP
Agent:
特許業務法人つばさ国際特許事務所 TSUBASA PATENT PROFESSIONAL CORPORATION; 東京都新宿区新宿1丁目15番9号さわだビル3階 3F, Sawada Building, 15-9, Shinjuku 1-chome, Shinjuku-ku, Tokyo 1600022, JP
Priority Data:
2017-14998602.08.2017JP
Title (EN) PROJECTION OPTICAL SYSTEM AND PROJECTOR
(FR) SYSTÈME OPTIQUE DE PROJECTION ET PROJECTEUR
(JA) 投射光学系およびプロジェクタ
Abstract:
(EN) The projection optical system according to the present disclosure is provided with: an intermediate image forming lens group that forms, from an image-to-be-projected side toward a projection-surface side, an intermediate image of the image to be projected; and a concave mirror that is disposed on an optical path following the formation of the intermediate image and forms a projected image on the projection surface, wherein the intermediate image forming lens group comprises an operating group that performs focus adjustment by moving on an optical axis, and the operating group includes a concave lens having an aspherical surface.
(FR) Selon la présente invention, le système optique de projection comprend : un groupe de lentilles de formation d'image intermédiaire qui forme, à partir d'un côté image à projeter vers un côté surface de projection, une image intermédiaire de l'image à projeter ; et un miroir concave qui est disposé sur un trajet optique après la formation de l'image intermédiaire et forme une image projetée sur la surface de projection, le groupe de lentilles de formation d'image intermédiaire comprenant un groupe de commande qui effectue un réglage de mise au point par déplacement sur un axe optique, et le groupe de commande comprend une lentille concave présentant une surface asphérique.
(JA) 本開示の投射光学系は、投影対象の画像側から投影面側に向かって順に、投影対象の画像の中間像を結像する中間像結像レンズ群と、中間像を結像した後の光路上に配置され、投影面に投影像を形成する凹面ミラーとを備え、中間像結像レンズ群は、光軸上を移動することでフォーカス調整を行う稼働群を有し、稼働群は、非球面を有する凹レンズを含む。
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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, JO, JP, 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)