EP 0953138 A1 19991103 - DEVICE FOR DETERMINING THE POINT OF IMPACT OF DARTS ON A PRACTICE TARGET
Title (en)
DEVICE FOR DETERMINING THE POINT OF IMPACT OF DARTS ON A PRACTICE TARGET
Title (de)
VORRICHTUNG ZUM ERMITTELN DES AUFTREFFPUNKTES VON PFEILEN AUF EINER ZIELSCHEIBE
Title (fr)
DISPOSITIF POUR LA DETERMINATION DU POINT D'IMPACT DE FLECHETTES SUR UNE CIBLE
Publication
Application
Priority
- DE 9800186 W 19980120
- DE 19701781 A 19970120
- DE 19800441 A 19980108
Abstract (en)
[origin: WO9831979A1] The invention relates to a device for determining the point of impact of darts (P) with a tip, on a flat practice target (Z). The device has a stationary light source (4, L) with a band-like luminous surface (5) at least partially enclosing the practice target, as well as a sensor device having several stationary angle sensors (S) fitted outside the practice target (Z), each measuring the angle position of a dart in relation to a reference. The evaluation unit (25) determines the point of impact of the dart by triangulating the measuring signals of the angle sensor(s). A semi-transparent ring mirror (RS) can be provided, which surrounds the practice target (Z), and whose mirror surface (non) is illuminated by a light source (Q). In this case the ring mirror is positioned between the practice target and the angle sensors.
IPC 1-7
IPC 8 full level
F41J 5/02 (2006.01); G01B 11/00 (2006.01); G01B 11/03 (2006.01)
CPC (source: EP)
F41J 5/02 (2013.01); G01B 11/002 (2013.01)
Citation (search report)
See references of WO 9831979A1
Designated contracting state (EPC)
AT CH DE ES FR GB GR IE IT LI NL SE
DOCDB simple family (publication)
WO 9831979 A1 19980723; CN 1091246 C 20020918; CN 1244250 A 20000209; DE 19800441 A1 19990930; DE 19800441 C2 20021031; EP 0953138 A1 19991103; JP 2001509251 A 20010710
DOCDB simple family (application)
DE 9800186 W 19980120; CN 98801925 A 19980120; DE 19800441 A 19980108; EP 98907847 A 19980120; JP 53353498 A 19980120