# US 12,222,098 B2 · Illumination system with lens projecting asymmetrical light beam

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- Number: US 12,222,098 B2
- Document ID: US12222098B2
- Status: Granted
- Kind: B2
- Application number: 17/912,368
- Filed: 2021-03-09
- Published: 2024-08-29
- Granted: 2025-02-11
- Earliest claimed: 2020-03-17
- Assignees: Gaggione SAS
- Applicants: Gaggione SAS
- Inventors: Jean-Pierre Lauret
- Web page: https://patentgrep.com/patent/US12222098B2

## CPC

- F21V 5/08: producing an asymmetric light distribution
- G02B 3/0056: {arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses (G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085)}
- F21V 5/002: {using microoptical elements for redirecting or diffusing light}
- F21V 5/045: {the lens having discontinuous faces, e.g. Fresnel lenses}
- G02B 19/0014: {at least one surface having optical power}
- G02B 27/0905: {Dividing and/or superposing multiple light beams}
- G02B 27/0972: {Prisms (prisms per se G02B5/04)}
- 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
- 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 device for shaping a primary light beam, the shaping device including a plurality of shaping structures. Each shaping structure has at least one first optical surface configured to direct incident light beams in a desired direction, and a second optical surface configured to totally internally reflect incident light beams towards the first optical surface. An LED might provide the primary light beam, and includes collimating optics.

## Claims

### Claim 1

A shaping device, comprising:
a light incident surface configured to receive a primary light beam, and defining a main axis substantially normal to a plane of the light incident surface, and
a plurality of shaping structures, each shaping structure of the plurality of shaping structures comprising at least one first optical surface configured to output emergent beams in a direction at an angle to the main axis,
wherein the plurality of shaping structures are regularly distributed along a spacing axis substantially perpendicular to the main axis, and extend longitudinally along an extension direction substantially perpendicular to the main axis and to the spacing axis, and
wherein each shaping structure of the plurality of shaping structures extends in a regular pattern that is substantially sinusoidal and repeated along the extension direction.

### Claim 2 (depends on 1)

The device according to claim 1, each shaping structure of the plurality of shaping structures further comprises a second optical surface configured to reflect the primary light beam by total internal reflection.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the at least one first optical surface defines an optical plane substantially parallel to the main axis.

### Claim 4 (depends on 1)

The device according to claim 1, wherein the plurality of shaping structures comprises at least 10 shaping structures.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the plurality of shaping structures consists of a plurality of shaping sub-assemblies, with each shaping sub-assembly comprising a plurality of shaping structures wherein at least two shaping sub-assemblies of the plurality of shaping sub-assemblies are configured to shape respective emergent light beams on at least one common area of a wall to be illuminated.

### Claim 6 (depends on 1)

The device according to claim 1, wherein each shaping structure of the plurality of shaping structures extends in a continuous manner.

### Claim 7 (depends on 6)

The device according to claim 6, wherein each shaping structure of the plurality of shaping structures extends along a derivable curve.

### Claim 8 (depends on 1)

The device according to claim 1, wherein the device comprises collimating optics configured to obtain the primary light beam from an incident light beam.

### Claim 9 (depends on 8)

The device according to claim 8, wherein the collimating optics and the plurality of shaping structures are formed from a single, one-piece mechanical part.

### Claim 10 (depends on 8)

The device according to claim 8, wherein the device comprises a light source configured to provide the incident light beam.

### Claim 11 (depends on 10)

The device according to claim 10, wherein the light source is a light emitting diode.

### Claim 12 (depends on 1)

The device according to claim 1, wherein the plurality of shaping structures are identical.

### Claim 13 (depends on 12)

The device according to claim 12, each shaping structure of the plurality of shaping structures further comprises a second optical surface configured to reflect the primary light beam by total internal reflection.

### Claim 14 (depends on 13)

The device according to claim 13, wherein the at least one first optical surface of each shaping structure defines an optical plane substantially parallel to the main axis.

### Claim 15 (depends on 14)

The device according to claim 14, wherein the plurality of shaping structures comprises at least 10 shaping structures.