Light emitting device
AssigneeNEC Corporation
InventorNaofumi Suzuki
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Abstract
A light emitting device of the present invention comprises a light source and an optical filter and is characterized by that it further comprises a first light guiding member of a taper shape whose cross-sectional area is gradually increased and a second light guiding member whose flare angle is smaller than that of the taper shape of the first light guiding member, wherein the length of the second light guiding member is smaller than the first light guiding member.
Claims10
A light emitting device comprising a light source and an optical filter, the light emitting device further comprising a first light guiding member of a taper shape whose cross-sectional area is gradually increased and a second light guiding member whose flare angle is smaller than that of the taper shape of said first light guiding member, wherein the length of said second light guiding member is smaller than that of said first light guiding member.
Dependencies are inferred from the claim text.