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1. (WO2010116862) COLLIMATING LENS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/116862    International Application No.:    PCT/JP2010/054337
Publication Date: 14.10.2010 International Filing Date: 15.03.2010
G02B 13/00 (2006.01), G02B 13/18 (2006.01)
Applicants: ALPS ELECTRIC CO.,LTD. [JP/JP]; 1-7, Yukigaya-otsukamachi, Ota-ku, Tokyo 1458501 (JP) (For All Designated States Except US).
KAMEDA Hiroshi [JP/JP]; (JP) (For US Only).
KYOYA Shoichi [JP/JP]; (JP) (For US Only).
NAKAGAWA Masayoshi [JP/JP]; (JP) (For US Only).
KONDO Yasuyuki [JP/JP]; (JP) (For US Only)
Inventors: KAMEDA Hiroshi; (JP).
KYOYA Shoichi; (JP).
NAKAGAWA Masayoshi; (JP).
KONDO Yasuyuki; (JP)
Agent: HIROKAWA Koji; Room 401, Kyodo Bldg. Akasaka, 4-3-1, Akasaka, Minato-ku, Tokyo 1070052 (JP)
Priority Data:
2009-081276 30.03.2009 JP
(JA) コリメートレンズ
Abstract: front page image
(EN)Provided is a collimating lens that can be implemented with a single lens and has low chromatic aberration. Said collimating lens collimates light from a laser device used in a laser display device. The light from the laser device has a wavelength between 375 and 750 nm. The collimating lens has a numerical aperture between 0.2 and 0.75 and fulfills both of the following conditions: (1) D/f > 0.85, with lens thickness D and focal length f; and (2) Abbe number νd > 57.
(FR)L'invention porte sur une lentille de collimation qui peut être mise en œuvre avec une lentille unique et a une aberration chromatique faible. Ladite lentille de collimation collimate une lumière provenant d'un dispositif laser utilisé dans un dispositif d'affichage laser. La lumière provenant du dispositif laser a une longueur d'onde entre 375 et 750 nm. La lentille de collimation a une ouverture numérique entre 0,2 et 0,75 et satisfait les deux conditions suivantes : (1) D/f > 0,85, avec l'épaisseur de lentille D et la longueur focale f; et (2) nombre de Abbe νd > 57.
(JA)【課題】単レンズで構成でき色収差特性の良好なコリメートレンズを提供する。 【解決手段】レーザーディスプレイ装置に用いるレーザー装置からの光を平行光とするコリメートレンズであり、レーザー装置からの光の波長が375nm以上750nm以下であって、開口数が0.2以上0.75以下であり、以下の条件をいずれも満たすようにした。すなわち、(1)レンズ厚をD、焦点距離をfとしたときに、D/f>0.85、かつ(2)アッベ数をνdとしたときに、νd>57。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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 (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)