# US 9,752,755 B2 · Collapsible reflector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,755 B2 - Document ID: US9752755B2 - Status: Granted - Kind: B2 - Application number: 15/055,602 - Filed: 2016-02-28 - Published: 2016-09-08 - Granted: 2017-09-05 - Earliest claimed: 2015-03-07 - Applicants: Torben Christopher Mossdorf - Inventors: Torben Christopher Mossdorf - Web page: https://patentgrep.com/patent/US9752755B2 ## CPC - F21V 7/18: with provision for folding or collapsing - F24S 20/50: Rollable or foldable solar heat collector modules - F24S 23/715: {flexible} - G02B 26/0825: {the reflecting element being a flexible sheet or membrane, e.g. for varying the focus (flexible mirrors for cosmetic use A45D42/24)} - G03B 15/06: Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio - H01Q 15/161: {Collapsible reflectors} - F21V 7/048: {with facets structure} - F21V 7/06: with parabolic curvature - G03B 2215/0582: Reflectors - Y02E 10/40: Solar thermal energy, e.g. solar towers - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F24S: SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G6/00) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A collapsible reflector includes a plurality of reflective blades which are rotatably arranged around a common axis. Each blade has a leading edge and a trailing edge. The blades are substantially flat and stacked above one another between a top blade and a bottom blade when the reflector is in a retracted position. The blades rotate and elastically bend to form an approximately dish-shaped arrangement when in an extended position. The leading edge of each blade is arranged below the trailing edge of the adjacent blade when the reflector is in the extended position. This includes the leading edge of the top blade, which is below the trailing edge of the bottom blade when the reflector is in the extended position. One blade may be fixedly connected to a central hub, enabling quick setup and disassembly of the reflector. ## Claims ### Claim 1 A collapsible reflector, comprising a plurality of reflective blades rotatably arranged around a common axis, each blade having a leading edge and a trailing edge, wherein the blades are substantially flat and stacked above one another between a top blade and a bottom blade when the reflector is in a retracted position, and wherein the blades rotate and elastically bend to form an approximately dish-shaped arrangement when in an extended position, and wherein the leading edge of the top blade is arranged below the trailing edge of the bottom blade when the reflector is in the extended position. ### Claim 2 (depends on 1) The collapsible reflector as in claim 1, wherein adjacent blades are connected at their outer ends and wherein rotation of adjacent blades relative to each other is limited by the connection. ### Claim 3 (depends on 1) The collapsible reflector as in claim 1, wherein each blade is connected to its adjacent blade by an outer clip which engages through apertures in the adjacent blades and wherein at least one of the apertures is a slot extending near an outer end of the blade. ### Claim 4 (depends on 1) The collapsible reflector as in claim 1, wherein the leading edges and/or the trailing edges of the reflective blades are arranged on top of one another when the reflector is in the retracted position. ### Claim 5 (depends on 1) The collapsible reflector as in claim 1, wherein the reflector comprises a central axial opening when extended. ### Claim 6 (depends on 5) A light device comprising the collapsible reflector as in claim 5 and a light source which mounts to the reflector through the central axial opening. ### Claim 7 (depends on 1) The collapsible reflector as in claim 1, wherein at least two blades are identical. ### Claim 8 (depends on 1) The collapsible reflector as in claim 1, wherein an inner end of the bottom blade comprises at least one arm arranged around the common axis, and wherein the arm of the bottom blade extends above the top blade when the reflector is in the retracted position. ### Claim 9 (depends on 8) The collapsible reflector as in claim 8, further comprising a locking pin which engages through one or more apertures in one or more blades when the reflector is extended. ### Claim 10 (depends on 9) The collapsible reflector as in claim 9, further comprising a center disc arranged at a distance from the bottom of the reflector by the locking pin. ### Claim 11 (depends on 10) The collapsible reflector as in claim 10, wherein the center disc is held by a single locking pin which engages a receiving opening in the center disc. ### Claim 12 A collapsible reflector, comprising: a central hub having a longitudinal axis; and a plurality of elastic blades, each blade being connected at an inner end to the central hub, wherein the reflector is collapsible from an extended position, in which the blades together extend 360° around the hub, to a retracted position, in which the blades are stacked above one another, and wherein the inner end of at least one blade is arranged non-horizontally relative to radial planes around the longitudinal axis when the reflector is in the retracted position. ### Claim 13 (depends on 12) The collapsible reflector as in claim 12, wherein the blades are connected to the central hub by annular elastic arms, and wherein at least one annular elastic arm slides axially along the central hub when the reflector is extended or retracted. ### Claim 14 (depends on 13) The collapsible reflector as in claim 13, wherein the annular elastic arms are connected to form an annular ring. ### Claim 15 (depends on 12) The collapsible reflector as in claim 12, wherein the blades comprise circumferentially extending slots at the inner end and wherein adjacent blades are connected by at least one inner clip which engages overlapping slots and limits rotation of adjacent blades relative to each other. ### Claim 16 (depends on 12) The collapsible reflector as in claim 12, wherein the central hub is a hub sleeve comprising an upper hub sleeve member and a lower hub sleeve member. ### Claim 17 (depends on 16) The collapsible reflector as in claim 16, wherein the plurality of elastic blades comprises a bottom blade having a trailing annular arm rigidly connected to the upper hub sleeve member and a leading annular arm rigidly connected to the lower hub sleeve member. ### Claim 18 (depends on 12) The collapsible reflector as in claim 12, wherein each blade has a leading edge and a trailing edge, and wherein the leading edge of each blade is arranged above the trailing edge of an adjacent blade when the reflector is expanded. ### Claim 19 (depends on 12) The collapsible reflector as in claim 12, wherein the blades are substantially flat when the reflector is collapsed and wherein the blades rotate and elastically bend to form an approximately rotationally symmetrical parabolic cup when extended. ### Claim 20 (depends on 12) The collapsible reflector as in claim 12, wherein each blade has a leading edge and a trailing edge, and wherein the leading edges of the reflective blades are arranged on top of one another when the reflector is in the retracted position. ### Claim 21 (depends on 12) The collapsible reflector as in claim 12, wherein a width of the blades between a leading edge and a trailing edge is smaller in a central section of the blade than at the he inner end and at an outer end. ### Claim 22 A collapsible reflector, comprising a plurality of blades, wherein the blades are substantially flat and stacked above one another between a top blade and a bottom blade when the reflector is in a retracted position, and wherein the blades rotate and elastically bend to form an approximately dish-shaped arrangement when in an extended position, and wherein the bottom blade is fixedly connected to a central hub above the top blade and the remaining blades can rotate in a limited angular range against each other around the central hub, and wherein adjacent blades are connected at their outer ends, and wherein the bottom blade and the top blade can be removably connected to each other at their outer ends.