Patent ID: 11865964
Assignee: MAXELL, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  G  F | IPC B  G

Claim 8:
9. A method for manufacturing an optical apparatus including a lens, a plurality of solid-state light sources, and a substrate on which the solid-state light sources are mounted, the method comprising:
forming an insulating layer on a base material that is rigid, the insulating layer including a mount surface, which has a curved surface shape that substantially matches a focal plane shape of the lens, such that a line connecting centers of light-emitting surfaces of the plurality of solid-state light sources substantially coincides with a focal plane of the lens in a cross-sectional view, or the line is present at a position spaced apart from the focal plane in an optical axis direction of the lens, and forming a circuit pattern on the mount surface to manufacture the substrate;
then, mounting the solid-state light sources on the mount surface of the substrate to be electrically connected with the circuit pattern; and
then, positioning the substrate with respect to the lens such that a position of the focal plane of the lens substantially coincides with positions of emission surfaces of the solid-state light sources, wherein
the base material is formed of metal, ceramic, or a highly heat-conductive resin, and includes a formation surface formed in a curved surface shape that substantially matches the focal plane shape of the lens, and
an insulating layer is formed on the formation surface, the insulating layer having an electrical insulation property and including a surface to serve as the mount surface.