# US 11,306,896 B2 · Integrated light engines including flexible optics and flexible light sources > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,896 B2 - Document ID: US11306896B2 - Status: Granted - Kind: B2 - Application number: 15/315,338 - Filed: 2015-06-01 - Published: 2017-05-04 - Granted: 2022-04-19 - Earliest claimed: 2014-05-30 - Assignees: ABL IP Holding LLC - Applicants: OSRAM SYLVANIA Inc. - Inventors: Zhuo Wang; Bruce Radl; Douglas Harriott - Web page: https://patentgrep.com/patent/US11306896B2 ## CPC - 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 7/0083: {Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane (combination of two or more reflectors F21V7/0025)} - F21V 19/0025: {the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections} - F21V 19/02: with provision for adjustment, e.g. for focusing - F21V 23/06: the elements being coupling devices {, e.g. connectors} - G02B 19/0028: {refractive and reflective surfaces, e.g. non-imaging catadioptric systems} - G02B 19/0066: {in the form of an LED array} - F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements - F21Y 2107/10: on concave supports or substrates, e.g. on the inner side of bowl-shaped supports - 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 - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 An integrated light engine including flexible optics and a flexible light source, and lighting devices including the same, are provided. The integrated light engine includes a flexible light source configured to emit light, and flexible optics coupled to the flexible light source. The flexible optics beam shapes light emitted by the flexible light source. The integrated light engine is capable of entering a set of states, such that a portion of beam shaped light emitted by the integrated light engine in a first state is aimed in a first direction and a portion of beam shaped light emitted by the integrated light engine in a second state is aimed in a second direction. Different combinations of the flexible optics with the flexible light source result in the integrated light engine being able to enter a number of flexed states or being held in a substantially flat, substantially stiff state. ## Claims ### Claim 1 An integrated light engine, comprising: a flexible light source configured to emit light, comprising a flexible substrate and a plurality of solid state light sources coupled to a first surface of the flexible substrate, wherein the flexible substrate comprises a planar shape having a thickness when in a substantially flat state; and a flexible optical system coupled thereto, wherein the flexible optical system beam shapes light emitted by the flexible light source, wherein the flexible optical system sits on top of the flexible light source, such that the thickness of the flexible substrate is exposed, wherein the flexible optical system comprises a sheet defining a plurality of cellular lighting elements, wherein each of the plurality of cellular lighting elements comprise a lower portion and an upper portion, opposite the lower portion, wherein the lower portions of the plurality of cellular lighting elements are coupled together to form the sheet, wherein each of the plurality of cellular lighting elements are one of pyramid shaped, volcano shaped, nozzle shaped, frustum shaped, or dome shaped, and wherein the lower portions are positioned more proximate to the flexible light source than the upper portions and the upper portions of the plurality of cellular lighting elements are spaced apart and not coupled together so that the light emitted by the flexible light source enters the lower portions and exits the upper portions and so that the flexible light source with the flexible optical system coupled thereto is bendable to place the first surface in a concave configuration. ### Claim 2 (depends on 1) The integrated light engine of claim 1, wherein the integrated light engine is configured to be placed into a lighting device, such that, when the flexible light source receives power, light emitted by the flexible light source and beam shaped by the flexible optical system illuminates an area. ### Claim 3 (depends on 1) The integrated light engine of claim 1, wherein the flexible substrate comprises conductive traces and the plurality of solid state light sources are electrically connected to the conductive traces, and wherein the flexible substrate is capable of moving between the substantially flat state and a substantially flexed state. ### Claim 4 (depends on 3) The integrated light engine of claim 3, wherein the flexible optical system has a footprint corresponding to the planar shape of the flexible substrate when in the substantially flat state. ### Claim 5 (depends on 1) The integrated light engine of claim 1, wherein the plurality of cellular optical elements are interconnected so as to occupy a plane corresponding to the footprint of the flexible optical system. ### Claim 6 (depends on 1) The integrated light engine of claim 1, wherein the plurality of solid state light sources are arranged in a first arrangement on the flexible substrate and wherein the plurality of cellular optical elements are arranged in a second arrangement. ### Claim 7 (depends on 6) The integrated light engine of claim 6, wherein the first arrangement and the second arrangement correspond such that at least one cellular optical element in the plurality of cellular optical elements contains at least one of the plurality of solid state light sources. ### Claim 8 (depends on 1) The integrated light engine of claim 1, wherein the flexible light source has is configurable to be in a substantially flat state, and wherein a shape of the flexible light source in the substantially flat shape is a planar shape corresponding to the footprint of the flexible optical system. ### Claim 9 (depends on 1) The integrated light engine of claim 1, wherein the flexible light source is capable of moving between a substantially flat state and a flexed state, and wherein the flexible optical system is capable of moving between a substantially flat state and a flexed state. ### Claim 10 (depends on 9) The integrated light engine of claim 9, wherein the flexible light source is capable of moving between a substantially flat state and a plurality of flexed states, and wherein the flexible optical system is capable of moving between a substantially flat state and a plurality of flexed states. ### Claim 11 (depends on 9) The integrated light engine of claim 9, wherein the flexible optical system is coupled to the flexible light source in an orientation, with the plurality of cellular optical elements in a corresponding direction. ### Claim 12 (depends on 11) The integrated light engine of claim 11, wherein the flexible optical system is coupled to the flexible light source in a first orientation, with the plurality of cellular optical elements in a corresponding first direction, such that the flexible optical system is in a substantially flat state, and the flexible light source is held in a corresponding substantially flat state by the flexible optical system. ### Claim 13 (depends on 11) The integrated light engine of claim 11, wherein the flexible optical system is coupled to the flexible light source in a second orientation, with the plurality of cellular optical elements in a corresponding second direction, such that the flexible optical system is capable of being placed in one of a set of flexed states, and the flexible light source is correspondingly placed in the same one of the set of flexed states. ### Claim 14 A lighting device comprising: an electrical connection from a power source; and an integrated light engine, comprising: a flexible light source configured to emit light, comprising a flexible substrate and a plurality of solid state light sources coupled to a first surface of the flexible substrate, wherein the flexible substrate comprises a planar shape having a thickness when in a substantially flat state; and a flexible optical system coupled thereto, wherein the flexible optical system beam shapes light emitted by the flexible light source, wherein the flexible optical system sits on top of the flexible light source, such that the thickness of the flexible substrate is exposed; wherein the flexible optical system comprises a sheet defining a plurality of cellular lighting elements, wherein each of the plurality of cellular lighting elements comprise a lower portion and an upper portion, opposite the lower portion, wherein the lower portions of the plurality of cellular lighting elements are coupled together to form the sheet, wherein each of the plurality of cellular lighting elements are one of pyramid shaped, volcano shaped, nozzle shaped, frustum shaped, or dome shaped, wherein the lower portions are positioned more proximate to the flexible light source than the upper portions and the upper portions of the plurality of cellular lighting elements are spaced apart and not coupled together so that the light emitted by the flexible light source enters the lower portions and exits the upper portions and so that the integrated light engine is capable of entering a set of states, such that a portion of beam shaped light emitted by the integrated light engine in a first state of the set of states is aimed in a first direction and a portion of beam shaped light emitted by the integrated light engine in a second state of the set of states is aimed in a second direction, and wherein in the second state the first surface is in a concave configuration. ### Claim 15 (depends on 14) The lighting device of claim 14, wherein the first state is a first flexed state, wherein the second state is a second flexed state, wherein the first flexed state is different from the second flexed state, and wherein the first direction is different from the second direction. ### Claim 16 (depends on 14) The lighting device of claim 14, wherein the first state is a first flexed state, wherein the second state is a second flexed state, wherein the first flexed state is different from the second flexed state, and wherein the first direction is the same as the second direction. ### Claim 17 (depends on 14) The lighting device of claim 14, wherein the flexible optical system is coupled to the flexible light source in a first orientation, such that the set of states the integrated light engine is capable of entering is a set of flexed states. ### Claim 18 (depends on 14) The lighting device of claim 14, wherein the flexible optical system is coupled to the flexible light source in a second orientation, such that the set of states the integrated light engine is capable of entering is a set of substantially flat states. ### Claim 19 (depends on 18) The lighting device of claim 18, wherein the set of substantially flat states comprises a substantially flat, substantially stiff state. ### Claim 20 (depends on 14) The lighting device of claim 14, wherein the flexible optical system is coupled to the flexible light source in an orientation, with the plurality of cellular optical elements in a corresponding direction. ### Claim 21 (depends on 20) The lighting device of claim 20, wherein the flexible optical system is coupled to the flexible light source in a first orientation, with the plurality of cellular optical elements in a corresponding first direction, such that the flexible optical system is in a substantially flat state of the set of states, and the flexible light source is held in a corresponding substantially flat state by the flexible optical system. ### Claim 22 (depends on 20) The lighting device of claim 20, wherein the flexible optical system is coupled to the flexible light source in a second orientation, with the plurality of cellular optical elements in a corresponding second direction, such that the flexible optical system is capable of being placed in one of a set of flexed states of the set of states, and the flexible light source is correspondingly placed in the same one of the set of flexed states of the set of states.