G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 9/10 (2006.01) B61L 5/18 (2006.01) F21V 5/04 (2006.01) G08G 1/095 (2006.01) G09F 9/33 (2006.01) G09F 13/00 (2006.01) G09F 13/22 (2006.01) H01L 33/00 (2006.01) F21S 8/00 (2006.01) G09F 13/04 (2006.01)
Patent
CA 2259750
An optical element for changeable traffic signs is proposed, consisting of a light source, in particular, a light-emitting diode (LED) (1), at least one converging lens (2) and one diverging lens (3), which are arranged coaxially in a shared housing (4). The light (6) exiting from the light source (1) is captured as completely as possible by the converging lens (2), concentrated in a focal spot (9), which is preferably surrounded by a diaphragm (10) and directed further onto the diverging lens (3) which distributes it according to certain specifications. The refracting power of diverging lens (3) is dimensioned such that light (8) exiting from it features a smaller angle of exit .beta. than a prescribed limit angle ~. The distance between converging lens (2) and diverging lens (3) is dimensioned such than sunlight (12) incident from the outside below an angle g greater than or equal to the limit angle ~ is completely blocked, either by the diaphragm (10) or by absorption on the housing wall, so that no phantom light is generated.
Hofstadler Friedrich Peter
Otto Alexander
Silhengst Franz
Fetherstonhaugh & Co.
Swarco Futurit Verkehrssignalsysteme Ges. M.b.h.
LandOfFree
Optical element for traffic signs, display panels or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical element for traffic signs, display panels or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical element for traffic signs, display panels or the like will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1684452