WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1997005456) COMPACT DISC BASED HIGH-PRECISION OPTICAL SHAFT ENCODER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/005456    International Application No.:    PCT/US1996/012298
Publication Date: 13.02.1997 International Filing Date: 25.07.1996
IPC:
G01D 5/347 (2006.01), G01P 3/486 (2006.01)
Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA [US/US]; Business and Patent Law, Mail Stop D412, Los Alamos, NM 87545 (US) (For All Designated States Except US).
HEHLEN, Markus, P. [CH/US]; (US) (For US Only)
Inventors: HEHLEN, Markus, P.; (US)
Agent: WYRICK, Milton, D.; Los Alamos National Laboratory, Mail Stop D412, Los Alamos, NM 87545 (US)
Priority Data:
60/001,423 25.07.1995 US
08/655,547 30.05.1996 US
Title (EN) COMPACT DISC BASED HIGH-PRECISION OPTICAL SHAFT ENCODER
(FR) CODEUR OPTIQUE DE POSITION ANGULAIRE HAUTE PRECISION, A DISQUE COMPACT
Abstract: front page image
(EN)A compact disc based optical shaft encoder compises a shaft (14) to be measured for rotation and a compact disc (13) attached to the shaft. The compact disc defines at least one track of concentrically located equally separated pits. Laser means (11, 12) are in optical communication with the compact disc for optically interrogating the pits with laser light. Detector means (11, 12) receive the laser light from the pits for sensing rotational movement of the shaft.
(FR)Un codeur de position angulaire à disque compact comprend un axe (14) dont la rotation doit être mesurée et un disque compact (13) fixé audit axe. Le disque compact définit au moins une piste de microcuvettes disposées de manière concentriques et à égale distance les unes des autres. Des moyens à laser (11, 12) sont en communication optique avec le disque compact pour interroger optiquement les microcuvettes au moyen de la lumière laser. Un moyen de détection (11, 12) reçoit la lumière laser provenant des microcuvettes pour détecter le mouvement de rotation de l'axe.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)