Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1981-07-06
1982-08-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250239, G02B 514
Patent
active
043462944
ABSTRACT:
Means and method for achieving a low profile optical coupling to a planar mounted optoelectronic device. Maintaining the optoelectronic device planar to the substrate on which it and associated circuitry are mounted enables the use of standard, well known manufacturing assembly techniques while providing electrical connection to the electric ports of said optoelectronic device. Optical fiber, light coupling is utilized. The low profile of the overall package is achieved by introducing the optical fiber on a plane which is generally parallel to the light-active surface of the optic port of said optoelectronic device. Actual optical coupling is achieved by introducing a smooth radius bend in the optical fiber so as to bring the fiber and the light-active surface of the optoelectronic device into generally orthogonal relationship. A glass-to-metal seal is provided where the optic fiber enters the package so as to provide a hermetic seal. Further mechanical and environmental support is provided by encapsulating the assembly, within its package, in an encapsulating medium having an index of refraction essentially matching that of the core of the optical fiber and the optic port of said optoelectronic device so as to reduce the possibility of reflective losses at the juncture of the fiber and said light active surface of said optic port. Efficiency and light handling ability of an optical light fiber are increased by providing a mirror-like interface along its entire length and utilizing both the central core and its cladding as light transmission media.
REFERENCES:
patent: 3542451 (1970-11-01), Washburn
patent: 3756688 (1973-09-01), Hudson et al.
patent: 3785716 (1974-01-01), Maurer
patent: 3879606 (1975-04-01), Bean
patent: 3896305 (1975-07-01), Ostrowsky et al.
patent: 4114177 (1978-09-01), King
patent: 4184070 (1980-01-01), McBride
Albaugh Neil P.
Stitt Robert M.
Burr-Brown Research Corp.
Nelms David C.
Weiss Harry M.
LandOfFree
Low profile optical coupling to planar-mounted optoelectronic de does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low profile optical coupling to planar-mounted optoelectronic de, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low profile optical coupling to planar-mounted optoelectronic de will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1438252