# US 2025/0093004 A1 · Light source system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0093004 A1 - Document ID: US20250093004A1 - Status: Published application - Kind: A1 - Application number: 18/822,620 - Filed: 2024-09-03 - Published: 2025-03-20 - Earliest claimed: 2023-09-19 - Assignees: Qisda Corporation - Applicants: Qisda Corporation - Inventors: Chih-Shiung CHIEN; Ming-Kuen LIN - Web page: https://patentgrep.com/patent/US20250093004A1 ## CPC - F21S 41/176: Light sources where the light is generated by photoluminescent material spaced from a primary light generating element - F21S 41/25: Projection lenses - F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805} - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS ## Abstract A light source system includes a first light source and a beam conversion element. The first light source is configured to emit a first light. The beam conversion element is configured to convert the first light into a condensed light and a diffused light. The beam conversion element has a light transmission surface, the light transmission surface includes a flat region and a curved-surface region, the flat region completely surrounds the curved-surface region, the flat region is configured to convert the first light into the condensed light, and the curved-surface region is configured to convert the first light into the diffused light. ## Claims ### Claim 1 A light source system, comprising: a first light source configured to emit a first light; and a beam conversion element configured to convert the first light into a condensed light and a diffused light; wherein the beam conversion element has a light transmission surface, the light transmission surface comprises a flat region and a curved-surface region, the flat region completely surrounds the curved-surface region, the flat region is configured to convert the first light into the condensed light, and the curved-surface region is configured to convert the first light into the diffused light. ### Claim 2 (depends on 1) The light source system according to claim 1, wherein the curved-surface region is protruded or recessed relative to the flat region. ### Claim 3 (depends on 1) The light source system according to claim 1, wherein the flat region and the curved-surface region form an adjustment unit, the beam conversion element comprises a plurality of the adjustment units, and the adjustment units are arranged in an n×m array, where n and m are positive integers equal to or greater than 1. ### Claim 4 (depends on 3) The light source system according to claim 3, wherein the first light source has a light-emitting surface, the light-emitting surface overlaps the entirety of one of the curved-surface regions and overlaps a portion of another of the curved-surface regions along a direction of an optical axis of the first light. ### Claim 5 (depends on 1) The light source system according to claim 1, wherein the beam conversion element comprises a plurality of adjustment units, one of the adjustment units comprises the flat region and the curved-surface region, and another of the adjustment units comprises the flat region but does not comprise the curved-surface region. ### Claim 6 (depends on 1) The light source system according to claim 1, wherein the flat region has an area accounting for more than 10% of an area of the light transmission surface. ### Claim 7 (depends on 1) The light source system according to claim 1, wherein the flat region has an area accounting for 10% to 90% of an area of the light transmission surface. ### Claim 8 (depends on 1) The light source system according to claim 1, wherein the first light source has a light-emitting surface, the light-emitting surface overlaps the entirety of the curved-surface region along a direction of an optical axis of the first light. ### Claim 9 (depends on 1) The light source system according to claim 1, further comprising: a lens; wherein the beam conversion element is disposed between the lens and the first light source. ### Claim 10 (depends on 1) The light source system according to claim 1, wherein the condensed light and the diffused light have a first wavelength, and the light source system further comprises: a lens; and a wavelength conversion element disposed on a downstream position of the lens and configured to convert the first wavelength into a second wavelength, wherein the second wavelength is different from the first wavelength; wherein the beam conversion element is disposed between the lens and the first light source. ### Claim 11 (depends on 1) The light source system according to claim 1, further comprising: a wavelength conversion element; a lens; and a second light source configured to emit a second light to the wavelength conversion element; wherein the wavelength conversion element is disposed between the second light source and the lens. ### Claim 12 (depends on 11) The light source system according to claim 11, further comprising: a reflective element; wherein the second light source is disposed between the wavelength conversion element and the reflective element. ### Claim 13 (depends on 1) The light source system according to claim 1, wherein the beam conversion element comprises: a prism; and a curved-surface portion disposed on the prism. ### Claim 14 (depends on 13) The light source system according to claim 13, wherein the prism and the curved-surface portion are integrally formed into one piece. ### Claim 15 (depends on 13) The light source system according to claim 13, wherein the prism has a light-incident surface and the flat region, the light-incident surface is configured to receive the first light, and the curved-surface portion has the curved-surface region. ### Claim 16 (depends on 1) The light source system according to claim 1, wherein the condensed light and the diffused light have a first wavelength, and the light source system further comprises: a wavelength conversion element configured convert the first wavelength into a second wavelength, wherein the second wavelength is different from the first wavelength; and a lens disposed on a downstream portion of the wavelength conversion element. ### Claim 17 (depends on 1) The light source system according to claim 1, wherein the condensed light and the diffused light have a first wavelength, and the light source system further comprises: a wavelength conversion element rotatably disposed on a downstream position of the beam conversion element and configured to convert the first wavelength into a second wavelength, wherein the second wavelength is different from the first wavelength. ### Claim 18 (depends on 1) The light source system according to claim 1, wherein the condensed light and the diffused light have a first wavelength, and the light source system further comprises: a wavelength conversion element fixedly disposed on a downstream position of the beam conversion element, and configured to convert the first wavelength into a second wavelength, wherein the second wavelength is different from the first wavelength; and a heat dissipation sink connected to the wavelength conversion element. ### Claim 19 (depends on 1) The light source system according to claim 1, wherein the light beam conversion element has two opposite light transmission surfaces. ### Claim 20 (depends on 1) The light source system according to claim 1, wherein a shape of the curved-surface region is a circle, an ellipse or a polygon.