Flame protected optic
AssigneeHubbell Incorporated
InventorsIvon Dachlan, Paolo Camillo
Life of this patent
Estimating the term…
Abstract
Various embodiments described herein are directed to luminaire components that prevent flame transmission from the inside of a luminaire to the outside of a luminaire. In certain aspects, the luminaire can be used in an environment containing flammable gas, for example, in specialized lab work or testing applications. This application discusses components that can be used to prevent flame transmission from the inside of a luminaire to the outside of a luminaire, thereby yielding a flame encapsulating luminaire. Accordingly, the components and assemblies described herein can be safely integrated with systems that operate in the presence of flammable gas.
Claims20
A luminaire system comprising:
- a luminaire enclosure comprising a luminaire enclosure cover and a luminaire enclosure backing;
- a pcb board, disposed in the luminaire enclosure and including one or more light emitters;
- an LED protective lens array including a plurality of protective lenses overlaying the pcb board and over the one or more light emitters;
- and
- a luminaire flame protective lens disposed in the luminaire enclosure cover;
- wherein a luminaire cavity is defined within the luminaire enclosure between the protective lens array and the luminaire lens;
- wherein the LED protective lens array is configured to be secured to the pcb board such that the protective lenses overlay the one or more light emitters, and such that a mechanical seal that disallows a flame from travelling into or out of at least one of the protective lenses is formed between the LED protective lens array and the pcb board.
An LED protective lens array comprising:
- a body having a surface;
- and
- a plurality of LED protective lenses extending from the body, each including an LED accommodating cavity;
- wherein the LED protective lens array is configured to be attached to a pcb board by way of an adhesive material applied to the surface and interacting with the pcb board;
- wherein the LED accommodating cavities are configured to overlay a plurality of individual LED elements disposed on the pcb board;
- and
- wherein attaching the LED protective lens array to the pcb board via the adhesive forms a mechanical seal between the LED protective lens array and the pcb board that disallows a flame from travelling into or out of at least one of the LED accommodating cavities when the LED protective lens array is attached to the pcb board.
A flame protected luminaire enclosure comprising:
- a luminaire enclosure cover including a luminaire lens;
- an LED protective lens array including a plurality of protective lenses;
- a luminaire enclosure backing configured to be joined to the luminaire enclosure cover by an adhesive;
- a luminaire cavity defined by a space extending between the luminaire lens and the luminaire enclosure backing;
- wherein the size of the luminaire cavity is determined based on a flame encapsulating protective standard for enclosures;
- and
- wherein the LED protective lens array is configured to be secured to the luminaire enclosure backing over a pcb board by the adhesive such that the LED protective lenses form a mechanical seal against the pcb board that disallows a flame from travelling into or out of at least one protective lens of the LED protective lens array.
Dependencies are inferred from the claim text.