# US 11,112,616 B2 · Refractive lens array assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,112,616 B2
- Document ID: US11112616B2
- Status: Granted
- Kind: B2
- Application number: 17/128,968
- Filed: 2020-12-21
- Published: 2021-04-15
- Granted: 2021-09-07
- Earliest claimed: 2018-02-21
- Assignees: American Sterilizer Company
- Applicants: American Sterilizer Company
- Inventors: David Jesurun
- Web page: https://patentgrep.com/patent/US11112616B2

## CPC

- G02B 27/0961: {Lens arrays (lens arrays per se G02B3/0006)}
- F21V 5/008: {Combination of two or more successive refractors along an optical axis}
- F21V 5/02: of prismatic shape (F21V5/04 takes precedence)
- F21V 14/06: by movement of refractors {(in vehicle head lamps F21S41/635)}
- G02B 5/0215: {the surface having a regular structure}
- G02B 5/0231: {the surface having microprismatic or micropyramidal shape (macroscopic prism arrays G02B5/045)}
- G02B 27/0927: {Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat}
- G02B 27/30: Collimators
- F21Y 2115/10: Light-emitting diodes [LED]
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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 refractive lens array assembly for integrated, adjustable beam spreading and bending, said refractive lens array comprising: (i) a first optical element including a top face having a stepped surface or a generally planar wedge-shaped surface, and a bottom face having a curved surface; and (ii) a second optical element including a top face having a curved surface, and a bottom face having a stepped surface or a generally planar wedge-shaped surface.

## Claims

### Claim 1

A lighting system comprising:
a light source;
a collimator; and
a refractive lens array assembly comprising:
a first optical element including a first face having a stepped surface, and a second face having a curved surface,
a second optical element including a first face having a curved surface, and a second face having a generally planar surface, and
a third optical element including a first face having a generally planar surface, and a second face having a generally planar wedge-shaped surface,
wherein the curved surfaces of the first and second optical elements face each other and the generally planar surfaces of the second and third optical elements face each other, and
wherein at least one of the first optical element, the second optical element, and the third optical element is moveable relative to an optical axis.

### Claim 2 (depends on 1)

The lighting system of claim 1, wherein said curved surfaces of the first and second optical elements are comprised of an array of surface peaks and valleys.

### Claim 3 (depends on 1)

The lighting system of claim 1, wherein said stepped surface of the first optical element is comprised of a plurality of Fresnel wedges.

### Claim 4 (depends on 1)

The lighting system of claim 1, wherein at least one of said first, second and third optical elements is ring-shaped or disc-shaped.

### Claim 5 (depends on 1)

The lighting system of claim 1, wherein at least one of said first, second and third optical elements is rotatable about an axis or movable linearly.

### Claim 6

A lighting system comprising:
a light source;
a collimator; and
a refractive lens array assembly comprising:
a first optical element including a first face having a generally planar wedge-shape surface, and a second face having a curved surface,
a second optical element having a first face having a curved surface, and a second face having a generally planar surface, and
a third optical element having a first face having a generally planar surface, and a second face having a stepped surface,
wherein the curved surfaces of the first and second optical elements face each other and the generally planar surfaces of the second and third optical elements face each other, and
wherein at least one of the first optical element, the second optical element, and the third optical element is moveable relative to an optical axis.

### Claim 7 (depends on 6)

The lighting system of claim 6, wherein said curved surfaces of the first and second optical elements are comprised of an array of surface peaks and valleys.

### Claim 8 (depends on 6)

The lighting system of claim 6, wherein said stepped surface of the third optical element is comprised of a plurality of Fresnel wedges.

### Claim 9 (depends on 6)

The lighting system of claim 6, wherein at least one of said first, second and third optical elements is ring-shaped or disc-shaped.

### Claim 10 (depends on 6)

The lighting system of claim 6, wherein at least one of said first, second and third optical elements is rotatable about an axis or movable linearly.