Led symbol signal
作者： Patrick Martineau
DOI:
关键词:
摘要: A LED symbol signal with LEDs (8) arrayed to correspond a desired symbol. mask (2) defines the diffusion surface (19) on cover diffuses display aspect, obscuring individual (8). The is spaced distance from diffusing (19). more aggressive pattern closer pattern. Preferably, ratio of pitch optical elements width at less than 1:2, preferably 1:4, 1:6 and most approximately 1:10.
lens.org 参考文章(11)
Ronald C. Lamparter, Stop sign housing with flashing lights ,(1995)
Shu Wing Yuen, Illuminated house number ,(1996)
Wen I Auguste Lee, Lighting directional sign for vehicle signal light ,(2001)
Patrick Martineau, Sun phantom LED traffic signal ,(2001)
Chen H. Wu, Light emitting diode retrofitting lamps for illuminated traffic signs ,(1999)
Harald Buchalla, Peter Furst, Lighting device for motor vehicles ,(2001)
Jun-ichi Nishizawa, Toru Teshima, Yasunori Kishi, Colored-light emitting display ,(1979)
Max Chang, Light-emitting structure of a decorative toy ,(1996)
Robert H Johnson, Gunnar R Ljungkull, Directional signal having refractive indicant areas ,(1970)
Alexander H Handlan, Lens for signal lamps ,(1926)