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1. (WO2015118711) OPTICAL UNIT AND ENDOSCOPE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/118711 International Application No.: PCT/JP2014/072902
Publication Date: 13.08.2015 International Filing Date: 01.09.2014
IPC:
G02B 7/04 (2006.01) ,A61B 1/00 (2006.01) ,G02B 7/08 (2006.01) ,G02B 23/26 (2006.01) ,H02K 33/16 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
1
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
08
adapted to co-operate with a remote control mechanism
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
23
Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
24
Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
26
using light guides
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
33
Motors with reciprocating, oscillating, or vibrating magnet, armature, or coil system
16
with polarised armature moving in alternate directions by reversal or energisation of a single coil system
Applicants: OLYMPUS CORPORATION[JP/JP]; 43-2, Hatagaya 2-chome, Shibuya-ku, Tokyo 1510072, JP
Inventors: KONO, Shinya; JP
IGUCHI, Takehiko; JP
Agent: KOYAMA, Takashi; JP
Priority Data:
2014-02118606.02.2014JP
Title (EN) OPTICAL UNIT AND ENDOSCOPE
(FR) UNITÉ OPTIQUE ET ENDOSCOPE
(JA) 光学ユニット及び内視鏡
Abstract:
(EN) [Problem] To provide an optical unit which is lighter and more compact and which drives a movable part forwards and backwards using a voice coil motor; and to provide an endoscope. [Solution] This optical unit is characterized by being provided with a fixed part (2) which has a cylindrical shape centered on a prescribed axis (C), a front frame part (4) which holds a front lens group (Gf) and which is centered on the axis (C) and attached to the object side of the fixed part (2), a back frame part (5) which holds a back lens group (Gb) and which is centered on the axis (C) and attached to the image side of the fixed part (2), a movable part (3) which holds a movable lens group (Gv) and which is centered on the axis (C) and arranged inside of the fixed part (2), and a voice coil motor (10) which, by means of a coil (11) arranged on the fixed part (2) and magnets (12) arranged on the movable part (3) and magnetically polarized in a direction perpendicular to the axis (C), enables moving the movable part (3) in the direction of the axis (C) with respect to the fixed part (2), wherein at least part of the movable part (3) is included in the area onto which the front frame part (4) is projected in the direction of the axis (C).
(FR) L'invention aborde le problème de la production d'une unité optique qui est plus légère et plus compacte et qui entraîne une partie mobile vers l'avant et vers l'arrière à l'aide d'un moteur à bobine mobile; et de la production d'un endoscope. L'invention réalise à cet effet une unité optique qui est caractérisée en ce qu'elle est pourvue d'une partie fixe (2) qui possède une forme cylindrique centrée sur un axe prescrit (C), une partie cadre avant (4) qui maintient un groupe de lentilles avant (Gf) et qui est centrée sur l'axe (C) et fixée du côté objet de la partie fixe (2), une partie cadre arrière (5) qui maintient un groupe de lentilles arrière (Gb) et qui est centrée sur l'axe (C) et fixée du côté image de la partie fixe (2), une partie mobile (3) qui maintient un groupe de lentilles mobile (Gv) et qui est centrée sur l'axe (C) et disposée à l'intérieur de la partie fixe (2), et un moteur à bobine mobile (10) qui, au moyen d'une bobine (11) disposée sur la partie fixe (2) et d'aimants (12) disposés sur la partie mobile (3) et polarisés magnétiquement dans une direction perpendiculaire à l'axe (C), permet le déplacement de la partie mobile (3) dans la direction de l'axe (C) par rapport à la partie fixe (2). Au moins une partie de la partie mobile (3) est incluse dans la zone sur laquelle la partie cadre avant (4) est projetée dans la direction de l'axe (C).
(JA) 【課題】 ボイスコイルモータを用いて可動部を進退駆動する小型化及び軽量化された光学ユニット及び内視鏡を提供する。 【解決手段】 光学ユニットは、所定の軸Cを中心とした筒形状の固定部2と、前レンズ群Gfを保持し、軸Cを中心として固定部2の物体側に取り付けられる前枠部4と、後レンズ群Gbを保持し、軸Cを中心として固定部2の像側に取り付けられる後枠部5と、可動レンズ群Gvを保持し、軸Cを中心として固定部2の内側に配置される可動部3と、固定部2に配置されたコイル11と、可動部3に配置され軸Cに直交する方向に磁気分極された磁石12と、によって、可動部3を固定部2に対して、軸C方向に相対移動させることが可能なボイスコイルモータ10と、を備え、前枠部4を軸C方向に投影した部分に可動部3の少なくとも一部が含まれることを特徴とする。
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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, 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, 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, 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)