Light-emitting apparatus with fastening of optical component to pedestal through light-emitting substrate through-hole, illumination light source having the same, and lighting apparatus having the same
View Patent ↗A light-emitting apparatus includes a pedestal, a substrate, an LED, an optical component, and a fastener. The LED is mounted on the substrate, and the substrate includes a first through-hole. The substrate is disposed on the pedestal. The optical component is disposed in the emission direction of light from the LED. The fastener passes through the first through-hole and fastens the optical component to the pedestal. A portion of the pedestal or a portion of the optical component is inserted in the first through-hole.
1. A light-emitting apparatus comprising:
a pedestal;
a substrate disposed on the pedestal and having a through-hole;
a plurality of light-emitting elements mounted on the substrate;
an optical component disposed in an emission direction of light from the plurality of light-emitting elements; and
a fastener passing through the through-hole and fastening the pedestal and the optical component together,
wherein:
at least one of a portion of the pedestal and a portion of the optical component includes a raised portion inserted in the through-hole,
at least a portion of a side surface of the raised portion has a shape corresponding to an inner side surface of the through-hole,
the through-hole has a rounded rectangular-shaped opening,
the through-hole is in a position away from the center of the substrate, and
the raised portion is in a position away from the center of the pedestal.
2. The light-emitting apparatus according to claim 1 ,
wherein the plurality of light-emitting elements are mounted in a loop around an outer perimeter of the substrate, and
the through-hole is formed inside the loop of the plurality of light-emitting elements.
3. The light-emitting apparatus according to claim 1 ,
wherein
the at least a portion of a side surface of the raised portion having a shape corresponding to an inner side surface is exposed to the through-hole of the substrate, and
the optical component is placed on the raised portion.
4. The light-emitting apparatus according to claim 3 ,
wherein the raised portion includes a plurality of recesses, and
the optical component includes a plurality of protrusions that are inserted respectively into the plurality of recesses.
5. The light-emitting apparatus according to claim 3 ,
wherein the raised portion includes a recess having a non-circular opening, and
the optical component includes a protrusion that mates with the recess.
6. The light-emitting apparatus according to claim 3 ,
wherein the optical component has a surface opposing the pedestal and including a recess, and
the raised portion mates with the recess.
7. The light-emitting apparatus according to claim 3 ,
wherein the raised portion includes a fastening hole to which the fastener is fastened.
8. The light-emitting apparatus according to claim 3 ,
wherein the raised portion mates with the through-hole.
9. The light-emitting apparatus according to claim 1 ,
wherein the optical component includes a raised portion that is inserted in the through-hole, and
the raised portion has a top portion being in contact with the pedestal.
10. The light-emitting apparatus according to claim 9 ,
wherein the raised portion mates with the through-hole.
11. The light-emitting apparatus according to claim 9 ,
wherein the raised portion includes an insertion hole through which the fastener is inserted.
12. The light-emitting apparatus according to claim 9 ,
wherein the raised portion comprises a pair of protrusions.
13. The light-emitting apparatus according to claim 12 ,
wherein the fastener is inserted between the pair of protrusions.
14. The light-emitting apparatus according to claim 9 ,
wherein the top portion of the raised portion has a non-circular shape in a plan view.
15. The light-emitting apparatus according to claim 9 ,
wherein the pedestal includes a recess in which the raised portion is disposed.
16. The light-emitting apparatus according to claim 14 ,
wherein at least a portion of a side surface of the raised portion has a shape corresponding to a side surface of the recess.
17. The light-emitting apparatus according to claim 1 ,
wherein a gap is provided between opposing surfaces of the optical component and the substrate.
18. An illumination light source comprising:
the light-emitting apparatus according to claim 1 ;
a tubular housing having a first end provided with the light-emitting apparatus;
a hollow globe that covers the light-emitting apparatus and closes the first end of the tubular housing;
a drive circuit housed in the housing; and
a base provided at a second end of the tubular housing.
19. A lighting apparatus comprising:
the light-emitting apparatus according to claim 1 ; and
a power source apparatus attached to the pedestal of the light-emitting apparatus.