EP 0398736 A2 19901122 - Method and apparatus for indicating the position of impact of light on a target.
Title (en)
Method and apparatus for indicating the position of impact of light on a target.
Title (de)
Verfahren und Vorrichtung zum Anzeigen eines Treffers eines Leuchtstrahles auf einer Zielscheibe.
Title (fr)
Procédé et dispositif pour indiquer l'impact d'un rayon lumineux sur une cible.
Publication
Application
Priority
FI 892414 A 19890519
Abstract (en)
A target (1) comprises an array of electro-optical devices (3) such as light-emitting diodes, disposed within light impervious tubes (4). When a ray of light impinges on one of the devices (3) it is detected. Control circuitry (6) then causes the device to emit visible light so as to indicate the point of impact. The target can be for use in optical shooting or can be used as an optical drawing board (8) in conjunction with a light pen (9).
IPC 1-7
IPC 8 full level
F41J 5/02 (2006.01)
CPC (source: EP)
F41J 5/02 (2013.01)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0398736 A2 19901122; EP 0398736 A3 19911121; FI 82768 B 19901231; FI 82768 C 19910410; FI 892414 A0 19890519; FI 892414 A 19901120; NO 902221 D0 19900518; NO 902221 L 19901120
DOCDB simple family (application)
EP 90305380 A 19900518; FI 892414 A 19890519; NO 902221 A 19900518