# US 2018/0320836 A1 · Theatre light projector incorporating a plurality of light sources and improvements to blending the light output > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320836 A1 - Document ID: US20180320836A1 - Status: Published application - Kind: A1 - Application number: 15/588,604 - Filed: 2017-05-06 - Published: 2018-11-08 - Earliest claimed: 2017-05-06 - Inventors: Richard S. Belliveau - Web page: https://patentgrep.com/patent/US20180320836A1 ## CPC - G02F 1/0105: {Illuminating devices} - F21S 10/007: {using rotating transparent or colored disks, e.g. gobo wheels} - F21V 5/007: {Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane (combination of two or more refractors F21V5/008)} - F21V 19/0055: {by screwing} - F21V 19/02: with provision for adjustment, e.g. for focusing - G02B 1/18: Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films (G02B1/16 takes precedence) - G02B 19/0061: {the light source comprising a LED} - G02B 26/008: {in the form of devices for effecting sequential colour changes, e.g. colour wheels} - F21V 14/06: by movement of refractors {(in vehicle head lamps F21S41/635)} - F21W 2131/406: for theatres, stages or film studios - F21Y 2115/10: Light-emitting diodes [LED] - F21Y 2115/30: Semiconductor lasers - G02B 27/0994: {Fibers, light pipes (optical fibers per se G02B6/02)} - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - 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 theatre light projector including a housing, a plurality of light sources, a first aperture device and a lens system. The lens system may include a first lens sector and a second lens sector, each of which may have a positive spherical optical power. The first lens sector may have a first radii, and the second lens sector may have a second radii, wherein the first radii and the second radii are substantially parallel to each other. The first aperture device may be comprised of a first aperture comprised of a color filter and/or a pattern. The plurality of light sources may be comprised of a first light source and a second light source and each may be comprised of a white solid state light source, which may be a light emitting diode. The white solid state light source may be a laser diode. ## Claims ### Claim 1 A theatre light projector comprising: a housing, a plurality of light sources, a first aperture device and a lens system; wherein the lens system is comprised of a first lens sector and a second lens sector; wherein the first lens sector and the second lens sector have a positive spherical optical power; wherein the first lens sector has a first radii; wherein the second lens sector has a second radii; and wherein the first radii and the second radii are substantially parallel to each other. ### Claim 2 (depends on 1) The theatre light projector of claim 1 wherein the first aperture device is comprised of a first aperture and the first aperture is comprised of a color filter. ### Claim 3 (depends on 1) The theatre light projector of claim 1 wherein the first aperture device is comprised of a first aperture device and the first aperture device is comprised of a pattern. ### Claim 4 (depends on 2) The theatre light projector of claim 2 wherein the plurality of light sources are comprised of a first light source and a second light source and each of the first light source and the second light source is comprised of a white solid state light source. ### Claim 5 (depends on 2) The theatre light projector of claim 2 wherein the white solid state light source is a light emitting diode. ### Claim 6 (depends on 1) The theatre light projector of claim 1 wherein the white solid state light source is a laser diode. ### Claim 7 (depends on 1) The theatre light projector of claim 1 wherein the plurality of light sources include a first light source and a second light source; wherein the first light source has a first heatsink and the second light source has a second heatsink; wherein the first light source is configured to project a first light having a first light path having a direction; wherein the first heatsink is comprised of an adjustment mechanism for altering the direction of the first light path. ### Claim 8 (depends on 7) The theatre light projector of claim 7 wherein the heatsink adjustment mechanism is comprised of a compression component. ### Claim 9 (depends on 1) The theatre light projector of claim 1 further comprising an output aperture wherein at least one surface of the output aperture has a stable wetting coating. ### Claim 10 (depends on 9) The theatre light projector of claim 9 wherein the stable wetting coating is a silicone derivative nano coating. ### Claim 11 A theatre light projector comprising: a housing, a plurality of light sources, a first aperture device and variable diffusion system; wherein the plurality of light sources is comprised of a first light source which is configured to project a first light in a first light path and further comprising a second light source which is configured to project a second light in a second light path; wherein the variable diffusion system is comprised of a first diffusing substrate and a second diffusing substrate; wherein the first diffusing substrate is rotatable into a first state and a second state wherein in the first state the first diffusing substrate is substantially perpendicular to the first light path and wherein the in the second state the first diffusing substrate is substantially parallel to the first light path and wherein the second diffusing substrate is rotatable into a first state and a second state wherein in the first state the second diffusing substrate is substantially perpendicular to the first light path and wherein in the second state the second diffusing substrate is substantially parallel to the second light path. ### Claim 12 (depends on 11) The theatre light projector of claim 11 wherein the first aperture device is comprised of a first aperture and the first aperture is comprised of a color filter. ### Claim 13 (depends on 11) The theatre light projector of claim 11 wherein the first aperture device is comprised of a first aperture device and the first aperture device is comprised of a pattern. ### Claim 14 (depends on 12) The theatre light projector of claim 12 wherein the plurality of light sources are comprised of a first light source and a second light source and each of the first light source and the second light source is a white light source. ### Claim 15 (depends on 11) The theatre light projector of claim 11 wherein each of the plurality of light sources is a light emitting diode. ### Claim 16 (depends on 11) The theatre light projector of claim 11 further comprising an output aperture wherein at least one surface of the output aperture has a stable wetting coating. ### Claim 17 (depends on 16) The theatre light projector of claim 16 wherein the stable wetting coating is a silicone derivative nano coating. ### Claim 18 (depends on 11) The theatre light projector of claim 11 wherein the plurality of light sources are comprised of a first light source and a second light source and wherein the first light source has a first heatsink and the second light source has a second heatsink; wherein the first light source is configured to project a first light in a first light path; and wherein the first heatsink is comprised of an adjustment mechanism for altering a direction of the first light path. ### Claim 19 (depends on 7) The theatre light projector of claim 7 wherein the heatsink adjustment mechanism is comprised of a compression component. ### Claim 20 A theatre light projector comprising: a housing, a plurality of light sources, a first aperture device, a lens system and a output aperture; wherein the plurality of light sources is comprised of a first light source and a second light source; wherein the first light source is a solid state white light source; wherein the second light source is a second solid state white light source; wherein the first aperture device is comprised of a plurality of apertures, including a first aperture, a second aperture, and an output aperture; wherein the first aperture is comprised of a first color filter; wherein the second aperture is comprised of a second color filter; wherein the output aperture is comprised of a first surface and a second surface; and wherein at least the first surface has a stable wetting coating. ### Claim 21 (depends on 20) The theatre light projector of claim 20 wherein the stable wetting coating is a silicon derivative nano coating. ### Claim 22 (depends on 20) The theatre light projector of claim 20 wherein the lens system is comprised of a plurality of pie shaped lens components. ### Claim 23 (depends on 21) The theatre light projector of claim 21 further comprising a diffusing system comprised of a plurality of rotatable diffusing substrates.