# US 10,767,836 B2 · Linear luminaire with optical control

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- Number: US 10,767,836 B2
- Document ID: US10767836B2
- Status: Granted
- Kind: B2
- Application number: 15/820,105
- Filed: 2017-11-21
- Published: 2019-05-23
- Granted: 2020-09-08
- Earliest claimed: 2017-11-21
- Assignees: Signify Holding B.V.
- Applicants: Signify Holding B.V.
- Inventors: Eric Tyler DiFelice; Adam Moore Foy
- Web page: https://patentgrep.com/patent/US10767836B2

## CPC

- F21V 5/08: producing an asymmetric light distribution
- F21S 8/06: by suspension
- F21V 5/008: {Combination of two or more successive refractors along an optical axis}
- F21V 19/0015: {Fastening arrangements intended to retain light sources}
- F21V 23/001: {the elements being electrical wires or cables}
- G02B 19/0014: {at least one surface having optical power}
- G02B 19/0061: {the light source comprising a LED}
- G02B 27/0955: {Lenses (lenses per se G02B3/00)}
- F21V 5/043: {the lens having cylindrical faces, e.g. rod lenses, toric lenses}
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2115/10: Light-emitting diodes [LED]
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A linear luminaire includes a housing and a light emitting diode (LED) light source attached to the housing. The luminaire further includes an over-optic piece covering the LED light source, and a lens spaced from the over-optic piece and covering the over-optic piece from view. A distribution of a light provided by the luminaire through the lens depends on the over-optic piece.

## Claims

### Claim 1

A linear luminaire, comprising:
a housing;
a down-light light emitting diode (LED) light source comprising a first circuit board attached to the housing, wherein the down-light LED light source is positioned in the housing to emit a first light toward an area below the linear luminaire;
a first over-optic piece covering multiple LEDs of the down-light LED light source, wherein the first over-optic piece is attached to the housing and wherein the first over-optic piece is spaced from the multiple LEDs of the down-light LED light source;
an up-light LED light source comprising a second circuit board separated from the first circuit board, wherein the up-light LED light source is positioned to emit a second light toward an area above the linear luminaire;
a second over-optic piece covering multiple LEDs of the up-light LED light source, wherein the second over-optic piece is spaced from the multiple LEDs of the up-light LED light source; and
a lens spaced from the first over-optic piece and covering the first over-optic piece from view, wherein the first over-optic piece changes a distribution of the first light as the first light passes through the first over-optic piece.

### Claim 2 (depends on 1)

The linear luminaire of claim 1, wherein the lens is a single-piece seamless lens.

### Claim 3 (depends on 1)

The linear luminaire of claim 1, wherein the distribution of the first light is more even after passing through the over-optic piece.

### Claim 4 (depends on 1)

The linear luminaire of claim 1, wherein the first over-optic piece is removably attached to the housing.

### Claim 5 (depends on 1)

The linear luminaire of claim 1, wherein the multiple LEDs of the down-light LED light source are attached to the first circuit board and wherein the multiple LEDs of the up-light LED light source are attached to the second circuit board.

### Claim 6 (depends on 1)

The linear luminaire of claim 1, wherein the housing is approximately 4 feet long.

### Claim 7 (depends on 1)

The linear luminaire of claim 1, wherein the over-optic piece comprises two or more over-optic pieces that are linearly coupled to each other.

### Claim 8 (depends on 1)

The linear luminaire of claim 1, further comprising a first driver that provides power to the down-light LED light source and a second driver that provides power to the up-light LED light source.

### Claim 9 (depends on 1)

The linear luminaire of claim 1, further comprising a driver that provides power to the down-light LED light source and to the up-light LED light source.

### Claim 10 (depends on 1)

The linear luminaire of claim 1, wherein the down-light LED light source is spaced from the up-light LED light source.