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1. (WO2019003480) LIGHT GUIDE BODY AND IMAGE READING APPARATUS
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Pub. No.: WO/2019/003480 International Application No.: PCT/JP2018/001236
Publication Date: 03.01.2019 International Filing Date: 17.01.2018
IPC:
H04N 1/04 (2006.01) ,F21V 8/00 (2006.01) ,G02B 6/00 (2006.01) ,G03B 27/54 (2006.01) ,H04N 1/028 (2006.01) ,F21Y 115/10 (2016.01) ,F21Y 115/15 (2016.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
04
Scanning arrangements
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
8
Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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
27
Photographic printing apparatus
32
Projection printing apparatus, e.g. enlarger, copying camera
52
Details
54
Lamp housings; Illuminating means
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
024
Details of scanning heads
028
for picture-information pick-up
[IPC code unknown for F21Y 115/10][IPC code unknown for F21Y 115/15]
Applicants:
三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP/JP]; 東京都千代田区丸の内二丁目7番3号 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310, JP
Inventors:
松澤 卓 MATSUZAWA, Taku; JP
白木 徹 SHIRAKI, Toru; JP
國塩 英記 KUNISHIO, Hideki; JP
大濱 大輔 OHAMA, Daisuke; JP
Agent:
村上 加奈子 MURAKAMI, Kanako; JP
松井 重明 MATSUI, Jumei; JP
倉谷 泰孝 KURATANI, Yasutaka; JP
伊達 研郎 DATE, Kenro; JP
Priority Data:
2017-12577128.06.2017JP
Title (EN) LIGHT GUIDE BODY AND IMAGE READING APPARATUS
(FR) CORPS DE GUIDAGE DE LUMIÈRE ET APPAREIL DE LECTURE D'IMAGE
(JA) 導光体及び画像読取装置
Abstract:
(EN) Provided are a light guide body and an image reading apparatus that are capable of efficiently irradiating an irradiation object (1). The present invention is provided with: rod-shaped light guide main bodies (2) that extend in the long direction; first end surface parts (3) that are end surfaces of the light guide main bodies (2) in the short direction; a light scattering pattern part (5) that scatters light that has entered through the first end surface parts (3) and guided within the light guide main bodies (2); and light emission surface parts (6) which are formed in the light guide main bodies in the long direction and from which the light scattered by the light scattering pattern part (5) and reflected on the wall surfaces of the light guide main bodies (2) is emitted to the outside of the light guide main bodies (2), wherein the light emission surface parts (6) have first light emission surface parts (6a) located near the first end surface parts (3) in the long direction, and second light emission surface parts (6b) that are continuous from the first light emission surface parts (6a) in the long direction, and the width of the first light emission surface parts (6a) in the short direction is smaller than that of the second light emission surface parts (6b) in the short direction.
(FR) L'invention concerne un corps de guidage de lumière et un appareil de lecture d'image qui sont capables d'irradier efficacement un objet d'irradiation (1). La présente invention comprend : des corps principaux de guidage de lumière (2) en forme de tige qui s'étendent dans la direction longue ; des premières parties de surface d'extrémité (3) qui sont des surfaces d'extrémité des corps principaux de guidage de lumière (2) dans la direction courte ; une partie de motif de diffusion de lumière (5) qui diffuse la lumière qui a pénétré à travers les premières parties de surface d'extrémité (3) et qui a été guidée à l'intérieur des corps principaux de guidage de lumière (2) ; et des parties de surface d'émission de lumière (6) qui sont formées dans les corps principaux de guidage de lumière dans la direction longue et à partir desquelles la lumière diffusée par la partie de motif de diffusion de lumière (5) et réfléchie sur les surfaces de paroi des corps principaux de guidage de lumière (2) est émise vers l'extérieur des corps principaux de guidage de lumière (2), les parties de surface d'émission de lumière (6) ayant des premières parties de surface d'émission de lumière (6a) qui sont situées à proximité des premières parties de surface d'extrémité (3) dans la direction longue ainsi que des secondes parties de surface d'émission de lumière (6b) qui sont continues à partir des premières parties de surface d'émission de lumière (6a) dans la direction longue, et la largeur des premières parties de surface d'émission de lumière (6a) dans la direction courte étant inférieure à celle des secondes parties de surface d'émission de lumière (6b) dans la direction courte.
(JA) 照射対象物(1)に効率よく照射できる導光体及び画像読取装置を得ること。長手方向に延在する棒状の導光体本体部(2)と、短手方向に沿った導光体本体部(2)の端面である第1端面部(3)と、第1端面部(3)から入射し、導光体本体部(2)の内部で導光された光を散乱させる光散乱パターン部(5)と、光散乱パターン部(5)により散乱した光が、導光体本体部(2)の壁面で反射して、導光体本体部(2)の外部へ出射する面であって、長手方向に沿って導光体本体部に形成された光出射面部(6)とを備え、光出射面部(6)は、長手方向において第1端面部(3)に近い第1光出射面部(6a)と、長手方向において第1光出射面部(6a)と連続する第2光出射面部(6b)とを有し、短手方向における第1光出射面部(6a)の幅は、短手方向における第2光出射面部(6b)の幅よりも短い。
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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, 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)