# US 2023/0056091 A1 · Optical device and luminaire comprising said optical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0056091 A1 - Document ID: US20230056091A1 - Status: Published application - Kind: A1 - Application number: 17/785,306 - Filed: 2020-04-02 - Published: 2023-02-23 - Earliest claimed: 2020-04-02 - Assignees: Antares Iluminacion, S.A.U. - Applicants: Antares IluminacióN, S.A.U. - Inventors: Federico MARTINEZ WEBER - Web page: https://patentgrep.com/patent/US20230056091A1 ## CPC - F21V 5/045: {the lens having discontinuous faces, e.g. Fresnel lenses} - F21S 8/024: {intended to be recessed in a wall or like vertical structure, e.g. building facade} - F21V 5/08: producing an asymmetric light distribution - F21V 7/0091: {using total internal reflection} - 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 - 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 The present invention relates to an optical device comprising a light source that in turn emits a light beam, and that enables a predetermined area to be illuminated with a very high degree of uniformity in a plane perpendicular to said optical device, such that the orientation of the light beam is changed, illuminating only said predetermined area, where, due to the low profile thereof, the optical device enables same to be integrated into a luminaire with a reduced height dimension, which is also object of the present invention. ## Claims ### Claim 1 An optical device characterised in that it comprises: at least one light source (1) intended to radiate a light beam (2) in a first direction (W) that forms an angle (a) less than 90° with an essentially vertical downward direction (+Y); a lens (4) that in turn comprises: a first total internal reflection surface (5) through which the light beam (2) is reflected; and a second faceted surface (6) comprising at least one first step (7, 17) defining at least one first section (8) and one second section (9) of said second faceted surface (6), wherein the second surface faceted (6) is configured to refract the light beam (2); wherein the second faceted surface (6) forms at least an angle (β) greater than 90° or the conjugate thereof with the essentially vertical downward direction (+Y); a shielding device (10) defining therein an interior space wherein the lens (4) is at least partially confined. ### Claim 2 (depends on 1) The optical device according to claim 1, characterised in that the first section (8) of the second faceted surface (6) forms a first angle (β) greater than 90° or the conjugate thereof with the essentially vertical downward direction (+Y), and the second section (9) of the second faceted surface (6) forms a second angle (γ) greater than 90° or the conjugate thereof with the essentially vertical downward direction (+Y), wherein the first angle (β) is smaller than the second angle (γ) or the first angle (β) is greater than the second angle (γ) in the case of the conjugates. ### Claim 3 (depends on 2) The optical device according to claim 2, characterised in that the first section (8) is further from the at least one light source (1) than the second section (9) in the essentially vertical downward direction (+Y). ### Claim 4 (depends on 2, 3) The optical device according to any of claims 2 or 3, characterised in that the second faceted surface (6) further comprises a second step (17) defining a third section (18) of the second faceted surface (6) that forms a third angle (δ) greater than 90° or the conjugate thereof with the essentially vertical downward direction (+Y). ### Claim 5 The optical device according to any of the preceding claims, characterised in that the first total internal reflection surface (5) and the second faceted surface (6) are essentially confined in the interior space defined by the shielding device (10). ### Claim 6 The optical device according to any of the preceding claims, characterised in that the shielding device (10) has the shape of a truncated cylinder comprising a straight base (11) and a surface of revolution (12), wherein the axis of the truncated cylinder is essentially parallel to the essentially vertical downward direction (+Y) and wherein the straight base (11) and the surface of revolution (12) define the interior space defined by the shielding device (10), wherein the surface of revolution (12) comprises an ellipse-shaped free edge (13), wherein a point (14) of the ellipse arranged at a greater height in the essentially vertical downward direction (+Y) is the point furthest from a predetermined area (20) to be illuminated. ### Claim 7 The optical device according to any of the preceding claims, characterised in that the shielding device (10) has the shape of a truncated cylinder comprising a straight base (11) and a surface of revolution (12), wherein the axis of the truncated cylinder is essentially parallel to the essentially vertical downward direction (+Y) and wherein the straight base (11) and the surface of revolution (12) define the interior space defined by the shielding device (10). ### Claim 8 (depends on 7) The optical device according to claim 7, characterised in that the surface of revolution (12) comprises an ellipse-shaped free edge (13), wherein a point (14) of the ellipse arranged at a greater height in the essentially vertical downward direction (+Y ) is the point furthest from a predetermined area (20) to be illuminated. ### Claim 9 The optical device according to any of the preceding claims, characterised in that the at least one light source (1) and the lens (4) can rotate about an axis essentially parallel to the essentially vertical downward direction (+Y), with respect to the shielding device. ### Claim 10 The optical device according to any of the preceding claims, characterised in that the light beam (2) is below a cut-off angle of 75°. ### Claim 11 A luminaire comprising at least one optical device according to any of the preceding claims. ### Claim 12 (depends on 11) The luminaire according to claim 11, characterised in that it further comprises a housing (30) wherein the at least one optical device is arranged, wherein the housing (30) in turn defines the shielding device (10). ### Claim 13 (depends on 12) The luminaire according to claim 12, characterised in that it comprises a set of optical devices adjacently arranged in the housing (30), which in turn comprises holes that define the shielding devices (10) of each of the optical devices.