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1. (WO2017134928) TELECONVERTER LENS AND OPTICAL APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134928 International Application No.: PCT/JP2016/086673
Publication Date: 10.08.2017 International Filing Date: 09.12.2016
IPC:
G02B 15/12 (2006.01) ,G02B 13/18 (2006.01) ,G02B 15/20 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15
Optical objectives with means for varying the magnification
02
by changing, adding, or subtracting a part of the objective, e.g. convertible objective
10
by adding a part, e.g. close-up attachment
12
by adding telescopic attachments
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
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15
Optical objectives with means for varying the magnification
14
by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
16
with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
20
having an additional movable lens or lens group for varying the objective focal length
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:
陳 永華 CHEN, Yonghua; JP
宮川 直己 MIYAGAWA, Naoki; 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:
2016-01698101.02.2016JP
Title (EN) TELECONVERTER LENS AND OPTICAL APPARATUS
(FR) OBJECTIF DE MULTIPLICATEUR DE FOCALE ET APPAREIL OPTIQUE
(JA) テレコンバータレンズおよび光学機器
Abstract:
(EN) A teleconverter lens of the disclosure of the present invention has, overall, a negative refractive power, and comprises the following, in order from the object side to the image side: a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group and the third lens group each include a positive lens and are formed of no more than two lenses. The teleconverter lens is detachably attached to a master lens on the image side thereof, and thereby enlarge the focal length of the master lens.
(FR) Un objectif de multiplicateur de focale selon la présente invention comporte, globalement, une réfringence négative, et comprend les éléments suivants, dans l'ordre du côté objet au côté image : un premier groupe d'objectifs ayant une réfringence positive ; un deuxième groupe d'objectifs ayant une réfringence négative ; et un troisième groupe d'objectifs ayant une réfringence positive. Le premier groupe d'objectifs et le troisième groupe d'objectifs comprennent chacun un objectif positif et sont constitués tout au plus de deux objectifs. L'objectif de multiplicateur de focale est fixé amovible à un objectif principal sur son côté image, et agrandit ainsi la longueur focale de l'objectif principal.
(JA) 本開示のテレコンバータレンズは、全体として負の屈折力を有し、物体側から像面側に向かって順に、正の屈折力を有する第1レンズ群と、負の屈折力を有する第2レンズ群と、正の屈折力を有する第3レンズ群とからなり、第1レンズ群および第3レンズ群はそれぞれ、正レンズを含む2枚以下のレンズで構成され、マスターレンズに対して像面側に着脱可能に装着されることにより、マスターレンズの焦点距離を拡大する。
front page image
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)
Also published as:
CN109073868