# US 2013/0155716 A1 · Lighting fixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155716 A1 - Document ID: US20130155716A1 - Status: Published application - Kind: A1 - Application number: 13/714,436 - Filed: 2012-12-14 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Inventors: Ping-Yeng Chen; Kuo-Jui Huang - Web page: https://patentgrep.com/patent/US20130155716A1 ## CPC - G02B 6/0001: {specially adapted for lighting devices or systems (lighting or signalling on vehicles using light guides B60Q1/00; lighting devices for vehicle dashboards B60Q3/10; lighting devices for vehicle interior using light guides B60Q3/62; lighting devices mounted on the vehicle rear part using light guides F21S43/235; measuring arrangements having light conducting pointers G01D13/265; illumination of liquid crystal displays G02F1/1336; illuminated signs G09F13/00)} - F21K 9/61: using light guides - F21V 7/005: {with an elongated shape to cooperate with linear light sources} - G02B 6/001: {the light being emitted along at least a portion of the lateral surface of the fibre} - F21Y 2115/10: Light-emitting diodes [LED] - G02B 6/0038: {Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - 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 light fixture including at least one light emitting device and a light-guiding pillar is provided. The light emitting device is adapted to emit a light beam. The light-guiding pillar has a light incident surface, an end surface opposite to the light incident surface, and a peripheral surface connecting the light incident surface to the end surface. The peripheral surface includes a smooth curved surface, a fillister surface connected to the smooth curved surface, and a reflective surface connected to the fillister surface. The light emitting device is disposed beside the light incident surface. The fillister surface is disposed at two opposite sides of the reflective surface. Extending directions of a plurality of fillisters on the fillister surface are substantially parallel to an extending direction of the light-guiding pillar. ## Claims ### Claim 1 A lighting fixture comprising: at least one light emitting device adapted to emit a light beam; and a light-guiding pillar having a light incident surface, an end surface opposite to the light incident surface, and a peripheral surface connecting the light incident surface to the end surface, wherein the peripheral surface includes a smooth curved surface, a fillister surface connected to the smooth curved surface, and a reflective surface connected to the fillister surface, the light emitting device is disposed besides the light incident surface, the fillister surface is disposed at two opposite sides of the reflective surface, and extending directions of a plurality of fillisters on the fillister surface are substantially parallel to an extending direction of the light-guiding pillar. ### Claim 2 (depends on 1) The lighting fixture of claim 1, wherein the fillister surface comprises a plurality of strip convex surfaces and a plurality of strip concave surfaces, the strip convex surfaces and the strip concave surfaces are alternately arranged and connected to one another, and the strip concave surfaces form the fillisters. ### Claim 3 (depends on 2) The lighting fixture of claim 2, wherein each of the strip convex surfaces is cylindrical convex in a portion, and each of the strip concave surfaces is cylindrical concave in a portion. ### Claim 4 (depends on 1) The lighting fixture of claim 1, wherein a cross-section shape of the fillister surface is an undulating shape. ### Claim 5 (depends on 1) The lighting fixture of claim 1, wherein the fillister surface comprises a plurality of strip convex surfaces connected to one another and two adjacent strip convex surfaces of the strip convex surfaces form one of the fillisters. ### Claim 6 (depends on 5) The lighting fixture of claim 5, wherein each of the strip convex surfaces is cylindrical convex in a portion. ### Claim 7 (depends on 1) The lighting fixture of claim 1, wherein the fillister surface includes a plurality of surface units connected to one another, each of the surface units includes a first strip inclined plane and a second strip inclined plane inclined at opposite directions and connected to each other, and two adjacent surface units of the surface units form one of the fillisters. ### Claim 8 (depends on 7) The lighting fixture of claim 7, wherein the first strip inclined plane and the second strip inclined plane are directly connected to each other. ### Claim 9 (depends on 8) The lighting fixture of claim 8, wherein the included angle between the first strip inclined plane and the second strip inclined plane is from about 100 to about 140 degrees. ### Claim 10 (depends on 1) The lighting fixture of claim 1, wherein the pitch between the fillisters is approximately equal to or smaller than 4 mm. ### Claim 11 (depends on 1) The lighting fixture of claim 1, wherein the depth of the fillisters is approximately equal to or smaller than 2 mm. ### Claim 12 (depends on 1) The lighting fixture of claim 1, further comprising a reflective cover, the fillister surface being disposed between the smooth curved surface and the reflective cover. ### Claim 13 (depends on 12) The lighting fixture of claim 12, wherein the light beam passes through the light-guiding pillar via the fillister surface and is transmitted to the reflective cover, and the reflective cover protrudes toward a direction distant from the light-guiding pillar.