Light source device
AssigneeNichia Corporation
InventorsNorimasa YOSHIDA, Tsuyoshi OKAHISA
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Abstract
A light source device includes: a light emitting device having an upper face including a light emission face; and a first lens having a lower face that faces the light emitting device, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting device enters, and a light guide part located outward of the entrance part and configured to guide the light entering the entrance part. The upper face of the first lens includes a plurality of annular protruding portions.
Claims10
Alight source device comprising:
- a light emitting device having an upper face comprising a light emission face;
- and
- a first lens having a lower face that faces the light emitting device, and an upper face opposite the lower face;
- wherein:
- the lower face of the first lens comprises:
- an entrance part located in a center of the lower face where light from the light emitting device enters, and
- a light guide part located outward of the entrance part and configured to guide the light entering the entrance part;
- and
- the upper face of the first lens comprises a plurality of annular protruding portions.
Dependencies are inferred from the claim text.