Class 1 compliant lens assembly

Patent metadata

Field	Value
Publication number	US-9404647-B2
Application number	US-201414153813-A
Country	US
Kind code	B2
Filing date	Jan 13, 2014
Priority date	Mar 15, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

An optical assembly including a mounting board and an LED coupled to the mounting board. An optic component, for example a lens, is coupled to the mounting board and encloses the LED. A shield member including 5 VA rated material is positioned to have a first surface in contact with the mounting board and a second surface in contact with the optic component.

First claim

What is claimed:

1. An optical assembly comprising:
a mounting board;
a plurality of LEDs coupled to said mounting board;
a plurality of optic components coupled to said mounting board and enclosing said LEDs; and
a plurality of shield members with one shield member associated with each optic component and including 5 VA rated material having a first surface in contact with said mounting board and a second surface in contact with said optic component.

2. The optical assembly of claim 1 , wherein said shield member provides a Class 1 compliant enclosure between said mounting board and said optic component.

3. The optical assembly of claim 2 , wherein said optic component comprises PMMA.

4. The optical assembly of claim 3 , wherein said optic component comprises a lens.

5. The optical assembly of claim 2 , wherein said optic component comprises silicone.

6. The optical assembly of claim 1 , wherein said shield member comprises an opening for receiving said LED.

7. The optical assembly of claim 1 , wherein said mounting board comprises a printed circuit board.

8. The optical assembly of claim 1 , wherein said optic component comprises a recess receiving said shield member.

9. An optical assembly comprising:
a mounting board;
a plurality of LEDs coupled to said mounting board;
a plurality of optic components coupled to said mounting board, enclosing said LEDs, and having a central lens portion; and
a shield member having an opening for receiving said LED, a first surface in contact with said mounting board, and a second surface in contact with said optic component, wherein said material provides a Class 1 compliant enclosure between said mounting board and said optic component.

10. The optical assembly of claim 9 , wherein said shield member includes 5 VA rated material.

11. The optical assembly of claim 9 , wherein said optic component comprises a pin and a tab extending from the pin and said shield member comprises an aperture for receiving said tab and said pin.

12. The optical assembly of claim 9 , wherein said optic component comprises a recess for receiving said shield member.

13. The optical assembly of claim 9 , wherein said LED comprises a Class 1 compliant LED package including a light-generating semiconductor element, a housing enclosing said light-generating semiconductor element, and a primary lens coupled to said housing.

14. The optical assembly of claim 9 , wherein said optic component comprises a material selected from the group consisting of PMMA and silicone.

15. An LED assembly comprising:
a mounting board;
an LED package coupled to said mounting board;
an optic component enclosing said LED package having a central lens portion, an edge, and a pin at least partially inserted into said mounting board; and
a shield member including 5 VA material having a central opening for receiving said LED, an outer opening for receiving said pin, a first surface in contact with said mounting board, and a second surface in contact with said optic component,
wherein said shield member comprises an inner region having a first thickness and an outer region having a second thickness less than said first thickness, said pin has an inner portion, and said inner region extends to said inner portion of said pin and said outer region extends to said optic component edge.

16. The LED assembly of claim 15 , wherein said shield member provides a Class 1 compliant enclosure between said mounting board and said optic component.

17. The LED assembly of claim 15 , wherein said optic component edge is substantially circular and said shield member has a size and shape configured to said optic component.

18. The LED assembly of claim 15 , wherein said optic component comprises a flange and said LED assembly further comprises a silicone gasket resting on said flange and a metal enclosure positioned over said silicone gasket.

19. The LED assembly of claim 15 , wherein said optic component comprises a material selected from the group consisting of PMMA and silicone.

20. The LED assembly of claim 15 , further comprising a second LED package coupled to said mounting board, a second optic component enclosing said second LED package, and a second shield member including 5 VA material having a central opening for receiving said second LED.

Assignees

• Hubbell Inc

Inventors

• Duckworth Jason Edward

Classifications

• F21V31/005

  Sealing arrangements therefor · CPC title

• F21V17/101

  permanently, e.g. welding, gluing or riveting · CPC title

• F21V3/0625

  the material diffusing light, e.g. translucent plastics · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V25/12 Primary

  Flameproof or explosion-proof arrangements · CPC title