# US 2014/0153007 A1 · Slanted lens interlacing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153007 A1 - Document ID: US20140153007A1 - Status: Published application - Kind: A1 - Application number: 14/088,519 - Filed: 2013-11-25 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Lumenco, LLC - Applicants: Lumenco, LLC - Inventors: MARK A. RAYMOND; HECTOR ANDRES PORRAS SOTO - Web page: https://patentgrep.com/patent/US20140153007A1 ## CPC - G02B 30/27: involving lenticular arrays - B42D 25/324: Reliefs - B42D 25/342: Moiré effects - B42D 25/351: Translucent or partly translucent parts, e.g. windows - G02B 3/005: {arranged along a single direction only, e.g. lenticular sheets (G02B3/0043 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B42D: BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS ## Abstract A method interlacing of images into an interlaced print file for controlling an output device. The interlacing method involves arranging a set of pixels in a line that is traverse but non-orthogonal to the longitudinal axis of a slant lens or lenticule. Each of these pixels is associated with a different frame/image, e.g., six or more frames are used in each interlaced image, with one being visible through the lens or lenticule at a time by a viewer. The slant lens interlacing method does not involve slicing each frame and the splicing these slices together. Instead, individual pixels from each frame are combined within a digital print file in a unique pattern to provide the non-orthogonal interlacing described herein (e.g., the new interlacing may be considered “matrix interlacing” or “angular-offset interlacing”), and a significantly larger amount of information is presented under each slant lens. ## Claims ### Claim 1 A method of generating an interlaced print file for a lens sheet with slanted lenticules, comprising: providing digital files for a set of frames for interlacing; inputting a slant angle for lenticules of the lens sheet; and interlacing the frames to form an interlaced print file by positioning a number of pixels from each of the frames in the print file based on a pattern of pixel locations provided in a predefined pixel matrix, wherein the pixel matrix is configured to map the plurality of pixels to the lenticules of the lens sheet based on the slant angle with interlacing of the frames being non-orthogonal to a longitudinal axis of each of the lenticules. ### Claim 2 (depends on 1) The method of claim 1, wherein each set of interlaced ones of the pixels associated with the set of frames is aligned in a column or in a row of the pixel matrix. ### Claim 3 (depends on 1) The method of claim 1, wherein the pixel matrix comprises a number of spaced apart sets of the pixels from each of the frames with the pixel locations for each of the spaced apart sets being arranged linearly at an offset angle of about the slant angle. ### Claim 4 (depends on 3) The method of claim 3, wherein the slant angle is in the range of 14 to 15 degrees. ### Claim 5 (depends on 3) The method of claim 3, wherein the slant angle is in the range of 18 to 19 degrees. ### Claim 6 (depends on 3) The method of claim 3, wherein the slant angle is in the range of 26 to 27 degrees. ### Claim 7 (depends on 3) The method of claim 3, wherein the slant angle is in the range of 44 to 46 degrees. ### Claim 8 (depends on 1) The method of claim 1, wherein the set of frames includes 5 frames, 6 frames, 9 frames, or 16 frames. ### Claim 9 (depends on 8) The method of claim 8, wherein the pixel matrix comprises repeating a 5 by 5 pixel matrix, a 6 by 6 pixel matrix, a 9 by 9 pixel matrix, or a 16 by 16 pixel matrix. ### Claim 10 A lenticular product, comprising: a transparent lens sheet comprising a first side having a plurality of side-by-side, elongated lenses each at an angle in the range of 10 to 46 degrees from a vertical or a horizontal axis of the lens sheet; and an ink layer, proximate to a second side of the lens sheet opposite the first side, comprising pixels from a plurality of digital images, wherein the pixels are arranged in a pattern of pixel locations providing non-orthogonal interlacing of the digital images relative to each of the elongated lenses. ### Claim 11 (depends on 10) The lenticular product of claim 10, wherein the pattern of pixel locations is adapted to align a number of the pixels from each of the digital images to be parallel to a longitudinal axis of an adjacent one of the elongated lenses. ### Claim 12 (depends on 10) The lenticular product of claim 10, wherein the lens sheet has a thickness in the range of 10 to 2500 microns and the elongated lenses are provided on the first side at 75 to 1500 LPI. ### Claim 13 (depends on 12) The lenticular product of claim 12, wherein the plurality of digital images comprises a number of images selected from the range of 5 images to 16 images and wherein the non-orthogonal interlacing is provided by sets of the pixels equal in number to the number of images including at least one pixel from each of the plurality of digital images. ### Claim 14 (depends on 13) The lenticular product of claim 13, wherein the sets of the pixels providing the non-orthogonal interlacing are aligned in a row or in a column of the pattern of pixel locations. ### Claim 15 (depends on 12) The lenticular product of claim 12, wherein the angle of the elongated lenses is 14.04 degrees, 18.435 degrees, 26.57 degrees, or 45 degrees. ### Claim 16 (depends on 10) The lenticular product of claim 10, further comprising an adhesive layer between the ink layer and the second side of the lens sheet, wherein the adhesive layer is substantially transparent to light. ### Claim 17 (depends on 10) The lenticular product of claim 10, further comprising a substrate and a layer of transparent adhesive between the substrate and the ink layer. ### Claim 18 (depends on 10) The lenticular product of claim 10, wherein the plurality of digital images are selected such that the plurality of pixels in the ink layer produce a 3D image when viewed through the elongated lenses of the lens sheet. ### Claim 19 A method of fabricating a lenticular product, comprising: providing a pixel matrix defining a plurality of pixel locations for pixels of a number of images, wherein the pixel locations are adapted to position the pixels associated with each of the images in a line parallel to longitudinal axes of lenticules provided at a slant angle in a lens sheet and further adapted to interlace sets of the pixels associated with differing ones of the images along an interlace line that is traverse to and non-orthogonal to the longitudinal axes of the lenticules; generating a digital print file by interlacing the images according to the pixel matrix by placing the pixels of the images into the pixel locations identified in the pixel matrix; and with the digital print file, operating an output device to print an interlaced image onto a planar back side of the lens sheet or onto a substrate for later application to the back side of the lens sheet. ### Claim 20 (depends on 19) The method of claim 19, wherein the slant angle is one of 14.04 degrees, 18.435 degrees, 26.57 degrees, or 45 degrees, wherein the lenticules are provided on the lens sheet at an LPI of at least 75 LPI, and wherein the lens sheet has a thickness in the range of 10 microns to 2500 microns.