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1. (WO2017130924) OPTICAL UNIT, AND PROJECTOR PROVIDED THEREWITH
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/130924 International Application No.: PCT/JP2017/002226
Publication Date: 03.08.2017 International Filing Date: 24.01.2017
IPC:
G03B 21/14 (2006.01) ,G02B 5/04 (2006.01) ,G02B 26/02 (2006.01) ,G03B 21/00 (2006.01)
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
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
04
Prisms
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26
Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
02
for controlling the intensity of light
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
Applicants:
コニカミノルタ株式会社 KONICA MINOLTA , INC. [JP/JP]; 東京都千代田区丸の内2丁目7番2号 2-7-2, Marunouchi, Chiyoda-Ku, Tokyo 1007015, JP
Inventors:
冨岡 正嗣 TOMIOKA Masatsugu; JP
今村 禎允 IMAMURA Sadanobu; JP
寺田 昌弘 TERADA Masahiro; JP
Agent:
特許業務法人 佐野特許事務所 SANO PATENT OFFICE; 大阪府大阪市中央区天満橋京町2-6天満橋八千代ビル別館5F 5F, Tenmabashi-Yachiyo Bldg. Bekkan, 2-6, Tenmabashi-Kyomachi, Chuo-Ku, Osaka-Shi, Osaka 5400032, JP
Priority Data:
2016-01448628.01.2016JP
Title (EN) OPTICAL UNIT, AND PROJECTOR PROVIDED THEREWITH
(FR) UNITÉ OPTIQUE, ET PROJECTEUR LA COMPRENANT
(JA) 光学ユニット及びそれを備えたプロジェクター
Abstract:
(EN) An optical unit (PU) comprises a plurality of digital micro-mirror devices (DP), a plurality of TIR prisms (P1), and a color-compositing prism (P2). The TIR prisms (P1) are disposed between the digital micro-mirror devices (DP) and the color-compositing prism (P2). The color-compositing prism (P2) has a first dichroic coated surface (DR) and a second dichroic coated surface (DB) that reflect ON light having a prescribed wavelength and transmit ON light having wavelengths other than the prescribed wavelength. When each digital micro-mirror device (DP) is viewed from the normal line direction, the angle defined by the lengthwise direction of the digital micro-mirror device (DP) and the intersection line (S) of the first dichroic coated surface (DR) and the second dichroic surface (DB) is smaller than 45°.
(FR) L'invention concerne une unité optique (PU) qui comporte une pluralité de dispositifs de micro-miroir numériques (DP), une pluralité de prismes TIR (P1) et un prisme de composition de couleur (P2). Les prismes TIR (P1) sont disposés entre les dispositifs de micro-miroir numériques (DP) et le prisme de composition de couleur (P2). Le prisme de composition de couleur (P2) a une première surface à revêtement dichroïque (DR) et une seconde surface à revêtement dichroïque (DB) qui réfléchissent une lumière ON ayant une longueur d'onde prescrite et transmettent la lumière ON ayant des longueurs d'onde autres que la longueur d'onde prescrite. Lorsque chaque dispositif de micro-miroir numérique (DP) est vu depuis la direction de ligne normale, l'angle défini par la direction longitudinale du dispositif de micro-miroir numérique (DP) et la ligne d'intersection (S) de la première surface à revêtement dichroïque (DR) et de la seconde surface dichroïque (DB) est inférieur à 45°.
(JA) 光学ユニット(PU)は、複数のデジタル・マイクロミラー・デバイス(DP)と、複数のTIRプリズム(P1)と、色合成プリズム(P2)とを備える。デジタル・マイクロミラー・デバイス(DP)と色合成プリズム(P2)との間にTIRプリズム(P1)を配置し、色合成プリズム(P2)は、所定波長のON光を反射して該所定波長以外のON光を透過する第1ダイクロイックコート面(DR)及び第2ダイクロイックコート面(DB)を有し、各デジタル・マイクロミラー・デバイス(DP)を法線方向から見て、第1ダイクロイックコート面(DR)と第2ダイクロイックコート面(DB)との交線(S)と、該デジタル・マイクロミラー・デバイス(DP)の長手方向との成す角度が45°よりも小さい。
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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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)