EP 2817666 A2 20141231 - PROJECTION HEAD FOR A LASER PROJECTOR
Title (en)
PROJECTION HEAD FOR A LASER PROJECTOR
Title (de)
PROJEKTIONSKOPF FÜR EINEN LASERPROJEKTOR
Title (fr)
TÊTE DE PROJECTION POUR UN PROJECTEUR LASER
Publication
Application
Priority
- DE 102012202636 A 20120221
- EP 2013053241 W 20130219
Abstract (en)
[origin: WO2013124256A2] The invention is concerned with a novel concept for improving the optical properties of the projection head during scanning laser projection. For this purpose, a fibre output coupling (1) is presented, which affords advantages over previous solutions with a fibre duo. It constitutes a possibility of being able to set the position of the point of intersection between the light beams. It is thus possible to position the point of intersection on the polygon facets (7). For this purpose, the known collimation lens is replaced by a new output coupling system (1). As a result, lower losses of light occur and edge discolourations during projection are reduced. The distance between the fibres (2, 3, 8, 9) can be chosen to be small (approximately 25 - 125 mum). It now also becomes possible to incorporate more than two fibres (2, 3, 8, 9), as a result of which a plurality of lines (Z11-19) can be scanned simultaneously. This enables a higher image resolution than can be realized with a fibre duo.
IPC 8 full level
G02B 6/36 (2006.01); G02B 26/12 (2006.01); G02B 27/09 (2006.01)
CPC (source: EP US)
G02B 19/0014 (2013.01 - EP US); G02B 19/0047 (2013.01 - EP US); G02B 26/123 (2013.01 - EP US); G02B 26/124 (2013.01 - EP US); G02B 6/3636 (2013.01 - EP US); G02B 6/3664 (2013.01 - EP US)
Citation (search report)
See references of WO 2013124256A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012202636 A1 20130822; EP 2817666 A2 20141231; US 2014362427 A1 20141211; WO 2013124256 A2 20130829; WO 2013124256 A3 20131205
DOCDB simple family (application)
DE 102012202636 A 20120221; EP 13706463 A 20130219; EP 2013053241 W 20130219; US 201414465672 A 20140821