Patent ID: 11867390
Assignee: NICHIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H  G | IPC F

Claim 0:
1. A light source device comprising:
a substrate;
a housing defining an opening;
a plurality of independently operable light emitting devices mounted on the substrate;
a first lens fixed to the substrate and facing the light emitting devices, the first lens comprising:
a first main body having a lower face that faces the light emitting devices and comprises:
an entrance part located in a center of the lower face where light from the light emitting devices enters, and
a light guide part located outward of the entrance part and configured to guide light entering the entrance part, and

a first marginal part extending laterally from a periphery of the first main body; and

a second lens located in the opening defined by the housing and facing the first lens, the second lens comprising:
a second main body having:
a lower face that faces the first lens and comprises a Fresnel lens face composed of a plurality of annular protruding portions, and
a flat face located on a side opposite the Fresnel lens face, and

a second marginal part extending laterally from a periphery of the second main body; wherein:

an upper face of the first marginal part is fixed to a lower face of the second marginal part via an adhesive material.