LED with phosphor layer having different thickness or...

Details LED with phosphor layer having different thickness or... LED with phosphor layer having different thickness or...

2006-05-11

2010-12-21

Patel, Nimeshkumar D (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S485000, C313S512000

Reexamination Certificate

active

07855501

ABSTRACT:
A light-emitting device (1) includes a substrate (10), a light-emitting element (12) that is mounted on the substrate (10) and includes a luminous region (12b) and a nonluminous region (12a), and a phosphor layer (13) that is formed to cover the light-emitting element (12). The thickness of the phosphor layer (13a) located on the nonluminous region (12a) is smaller than that of the phosphor layer (13b) located on the luminous region (12b). The light-emitting device (1) can suppress nonuniform luminescent color.

REFERENCES:
patent: 6635363 (2003-10-01), Duclos et al.
patent: 6747406 (2004-06-01), Bortscheller et al.
patent: 2003/0214233 (2003-11-01), Takahashi et al.
patent: 2004/0257797 (2004-12-01), Suehiro et al.
patent: 1 020 935 (2000-07-01), None
patent: 1 385 216 (2004-01-01), None
patent: 2001-15817 (2001-01-01), None

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