Multi-level lightpipe design for SMD LEDs

Details Multi-level lightpipe design for SMD LEDs Multi-level lightpipe design for SMD LEDs

1993-07-12

1994-09-20

Yeung, James C.

Illumination

Revolving

362800, 362249, F21V 704

Patent

active

053495047

ABSTRACT:
A multi-level lightpipe and housing are utilized a surface mount LEDs. The multi-level lightpipe is in the form of a single molded part which can collect light from multiple LEDs and redirect light to different locations. The lightpipe includes two or more separate passageways for separately redirecting and transmitting light from two or more separate light sources, such as two or more separate LEDs. The housing has an opening for receiving the multi-level lightpipe therein. The housing also includes an attachment mechanism for permitting the housing with the lightpipe positioned therein to be removably attached to a printed circuit board such that light from a first LED is directed and transmitted through one of the separate passageways, and light from a second LED is directed and transmitted through another of the separate passageways of the multi-level lightpipe.

REFERENCES:
patent: Re34254 (1993-05-01), Dragoon
patent: 4897769 (1990-01-01), Lang
patent: 5268823 (1993-12-01), Yergenson

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