Illumination – Light source and modifier – Including translucent or transparent modifier
Reexamination Certificate
2007-08-02
2010-10-19
O'Shea, Sandra L (Department: 2875)
Illumination
Light source and modifier
Including translucent or transparent modifier
C362S249020, C362S255000, C362S256000, C362S267000, C362S311020, C362S311040, C257S098000, C257S099000, C257S100000
Reexamination Certificate
active
07815343
ABSTRACT:
The present invention provides a light emitting device which has high reliability and long service life by suppressing the sealing resin from peeling off the inner edge of the opening of the recess of the housing.The light emitting device of the present invention comprises a light emitting element having a pair of electrodes, a housing having a recess for accommodating the light emitting element, a first lead electrode and a second lead electrode which are exposed on the bottom of the recess, electrically conductive members for electrically connecting the pair of electrodes of the light emitting element to the first lead electrode and to the second lead electrode respectively, a transparent sealing material which fills in the recess and granular additives contained in the sealing material, wherein the inner wall surface of the recess has a light blocking section that blocks light emitted by the light emitting device toward the inner edge of the opening of the recess, the quantity of the granular additives contained in the sealing material is controlled to such a level that enhances scattering of light in a first region located below the light blocking section and to such a level that suppresses scattering of light in a second region located above the light blocking section.
REFERENCES:
patent: 6610563 (2003-08-01), Waitl et al.
patent: 7210807 (2007-05-01), Sakamoto et al.
patent: 7517728 (2009-04-01), Leung et al.
patent: 7554129 (2009-06-01), Roth et al.
patent: 7592639 (2009-09-01), Maeda et al.
patent: 2004/0051111 (2004-03-01), Ota et al.
patent: 2005/0173713 (2005-08-01), Lin et al.
patent: 2005/0280354 (2005-12-01), Liu
patent: 2006/0022215 (2006-02-01), Arndt et al.
patent: 2006/0022580 (2006-02-01), Jermann et al.
patent: 2006/0255716 (2006-11-01), Tsutsumi et al.
patent: 2007/0019416 (2007-01-01), Han et al.
patent: 2006-516816 (2006-07-01), None
Kasae Nobuhide
Nii Ikuya
Takao Toshimasa
Ukawa Hiroaki
Birch & Stewart Kolasch & Birch, LLP
Nichia Corporation
O'Shea Sandra L
Zettl Mary
LandOfFree
Light emitting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light emitting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4184806