# US 5,710,666 A · Slide viewer having a lenticular viewing lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,710,666 A - Document ID: US5710666A - Status: Granted - Kind: A - Application number: 08/663,936 - Filed: 1996-06-14 - Granted: 1998-01-20 - Earliest claimed: 1996-06-14 - Assignees: Digital Dimension, A California Limited Liability Co. - Inventors: Sean McDonald - Web page: https://patentgrep.com/patent/US5710666A ## CPC - G02B 30/27: involving lenticular arrays - G03B 25/02: with interposed lenticular or line screen - 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) ## Abstract The invention is a viewer for slides having three-dimensional and/or animation type lenticular images recorded thereon in image line sets. In detail, the invention includes a frame. The frame includes a slot for receiving the slide therein having an open end at the top or side of the frame and a closed off opposite end, the slot in a planer relationship with the front and rear walls. The front wall includes a lenticular lens mounted in a planner relation therein, the lens having an internal side forming a portion of the wall of the slot; the lens having a plurality of lenticules therein. The end opposite the open end of the slot is aligned with the lenticules of the lens and positioned within the frame such that a slide positioned in the slot in contact with the opposite end of the slot will have the center of the image line sets in substantial alignment with the center of the lenticules of the lenticular lens. In a second embodiment, the viewer includes only a lenticular lens having a protursion at one end thereof for positioning the slide such that a slide positioned on the protrusion will have the center of the image line sets in substantial alignment with the center of the lenticules of the lenticular lens. ## Claims ### Claim 1 A viewer for slides having three-dimensional and/or animation type lenticular images recorded thereon in image line sets, the viewer comprising a frame having front and rear walls; said frame having a slot for receiving the slide therein having an open end and a closed off bottom end, said slot in a planar relationship with said front and rear walls; said front wall having a lenticular lens, having a plurality of lenticules therein, mounted in a planar relation therein, said lens having an internal side forming at least a portion of the wall of the slot; said bottom end of said slot aligned with said lenticules of said lens and positioned within said frame such that a slide positioned in said slot in contact with said end of said slot will have the center of the sets of the lines in substantial alignment with the center of said lenticules of said lenticular lens. ### Claim 2 (depends on 1) The system as set forth in claim 1 wherein said opening of said slot is at said top of said frame. ### Claim 3 (depends on 1) The viewer as set forth in claim 1 comprising said opening of said slot is at the side of said frame. ### Claim 4 (depends on 1) The viewer as set forth in claim 1, or 2, or 3, wherein said lenticular lens having a protrusion at its bottom end extending outward from said internal side and having a length equal to said width of said slot, said protrusion extending into said slot forming the bottom end thereof. ### Claim 5 (depends on 4) The viewer as set forth in claim 4 wherein the slide has a specific thickness and said slot having a width just sufficient to allow the slide to enter therein. ### Claim 6 (depends on 5) The viewer as set forth in claim 5 comprising said slot having a side to side length just sufficient to allow the slide to enter therein; and means to raise and or lower said slide's position when the slide is installed in said slot. ### Claim 7 (depends on 6) The viewer as set forth in claim 6 wherein said means to raise and or lower said slide's position when the slide is installed in said slot includes a shaft rotatably mounted in the bottom of said frame and an end extending out of said frame; a passage within said frame extending from said shaft to said end of said slot; and a cam mounted on said shaft having a cam surface movable into said slot when said shaft is rotated. ### Claim 8 (depends on 1) The viewer as set forth in claim 1, or 2, comprising said lenticular lens includes a flat external side and a plurality of curved lenticules on said internal side. ### Claim 9 (depends on 5) The viewer as set forth in claim 5 comprising a handle connected to the bottom of said frame, said handle extending downward therefrom. ### Claim 10 (depends on 9) The viewer as set forth in claim 9 comprising said handle retractable to a position parallel to the said bottom of said frame. ### Claim 11 (depends on 10) The viewer as set forth in claim 10 comprising detente means for releasably holding said handle in said extended and retracted positions. ### Claim 12 (depends on 5) The viewer as set forth in claim 5 wherein said front wall is transparent and extends over said lenticular lens. ### Claim 13 (depends on 1) The viewer as set forth in claim 1, or 2 wherein said slot extends through said back wall. ### Claim 14 (depends on 13) The viewer as set forth in claim 13 comprising means mounted on the said back wall; such that said frame can be bonded to a surface wherein the surface forms a rear wall of said slot; said means selected from the group consisting of a layer of magnetic material or adhesive material. ### Claim 15 (depends on 14) The viewer as set forth in claim 14 where a strippable protective layer is removably affixed to said layer of adhesive material. ### Claim 16 (depends on 15) The viewer as set forth in claim 15 wherein the slide has a specific thickness and said slot having a width just sufficient to allow the slide to enter therein. ### Claim 17 (depends on 16) The viewer as set forth in claim 16 wherein the slide has a specific length side to side, said viewer further comprising: said slot having a side to side length just sufficient to allow the slide to enter therein; and means to raise and or lower said slide's position when the slide is installed in said slot. ### Claim 18 A viewer for slides having three-dimensional and/or animation type lenticular images recorded thereon in image line sets, the viewer comprising a frame having front and rear walls; said frame having a slot for receiving the slide therein having an open end and a closed off bottom end, said slot in a planar relationship with said front and rear walls; said front wall having a lenticular lens with a plurality of lenticules movably mounted in a planar relation therein, said lens having an internal side forming a portion of the wall of the slot; said bottom end of said slot aligned with said lenticules of said lens and positioned within said frame such that a slide positioned in said slot in contact with said end of said slot will have the center of the sets of the lines in substantial alignment with the center of said lenticules of said lenticular lens; means to bias said lens toward said top of said frame; and means to manually urge the lens toward said bottom end of said slot. ### Claim 19 (depends on 18) The viewer as set forth in claim 18 comprising said lens movable at least the width of one of said lenticules of said lens. ### Claim 20 (depends on 19) The viewer as set forth in claim 19 therein said opening of said slot is at said top of said frame. ### Claim 21 (depends on 19) The viewer as set forth in claim 19 comprising said opening of said slot is at the side of said frame. ### Claim 22 (depends on 21) The viewer as set forth in claim 21 wherein the slide has a specific thickness and said slot having a width just sufficient to allow the slide to enter therein. ### Claim 23 (depends on 22) The viewer as set forth in claim 22 wherein the slide has a specific length side to side, said viewer further comprising: said slot having a side to side length just sufficient to allow the slide to enter therein; and means to raise and or lower said slide's position when the slide is installed in said slot. ### Claim 24 (depends on 23) The viewer as set forth in claim 23 comprising a handle connected to the bottom of said frame, said handle extending downward therefrom. ### Claim 25 (depends on 24) The viewer as set forth in claim 24 comprising said handle retractable to a position parallel to the said bottom of said frame. ### Claim 26 (depends on 25) The viewer as set forth in claim 25 comprising detente means for releasably holding said handle in said extended and retracted positions. ### Claim 27 A viewer for slides having three-dimensional and/or animation type lenticular images recorded thereon in image line sets, the viewer comprising a lenticular lens having a plurality of parallel lenticules, and means coupled to said lens having a surface parallel to the lenticules of said lens, said surface positioned on said lens such that a slide mounted on said surface will have the center of the sets of the lines in substantial alignment with the center of said lenticules of said lenticular lens, wherein said means comprises a protrusion extending outward from one edge of said lens, said protrusion having a length equal to the width of the slide. ### Claim 28 A viewer for slides having three-dimensional and/or animation type lenticular images recorded thereon in image line sets, the viewer comprising a frame having front and rear walls; said frame having a slot for receiving the slide therein having an open end and a closed off bottom end, said slot in a planar relationship with said front and rear walls; said front wall having a lenticular lens with a plurality of lenticules movably mounted in a second slot in communication with said first slot and in a planner relation therein, said lens having an internal side forming a portion of the wall of the slot; said bottom end of said slot aligned with said lenticules of said lens and positioned within said frame such that a slide positioned in said slot in contact with said end of said slot will have the center of the sets of the lines in substantial alignment with the center of said lenticules of said lenticular lens; means to bias said lens toward the bottom of said frame; and means to manually move the lens toward the top end of said frame. ### Claim 29 (depends on 28) The viewer as set forth in claim 28 wherein said means to move said lens toward the top of said frame includes a shaft rotatably mounted in the bottom of said frame having an end extending out of said frame; a passage within said frame extending from said shaft to second slot; and a cam mounted on said shaft within said passage and having a cam surface movable into said second slot and into contact with the bottom of said lens when said shaft is rotated moving said lens upward.