US4084894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Array of optical projection devices
Assignee: Fujifilm Business Innovation Corp
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Filing: 1974-02-28
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Granted: 1978-04-18
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Expires: 1994-02-28
Abstract
Abstract In an array of optical image projection devices where each image projection device projects a portion of an object image onto a surface, the improvement of forming the entire object image on the surface without overlapping of the image portions where each lens system comprises a lens for projecting its corresponding portion of the object image; first reflecting means for reflecting the image portion projected by the lens back through the lens; further reflecting means for projecting the image portion projected back through the lens onto the surface so that all of the image portions may be merged into a single image on the surface.
Inventors
- 👤 Masaki Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:13
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/18; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
An array of optical image projection devices where each image projection device projects a portion of an object image onto a surface to form the entire object image on the surface without overlapping of the image portions where each image projection device consists of a double convex lens for projecting its corresponding portion of the object image; a reflecting focusing means for reflectively focusing the image portion projected by said lens back through said lens; and further reflecting means for projecting the image portion projected back through said lens onto said surface so that all of the image portions may be merged into a single image on the surface, said further reflecting means comprises a semi-transparent reflector angularly disposed with respect to the optical axis of said double convex lens between said double convex lens and said object image so that the light rays pass from said object through said semi-transparent reflector and double convex lens to said refractive reflecting means where an inverted, actual image of said object is formed, said light rays being reflected back through said lens and again reflected from said semi-transparent reflector onto said surface where a regular, actual image of said object is formed.
Claim 2
Dependent Claim
200 words
An array of optical image projection devices where each image projection device projects a portion of an object image onto a surface to form the entire object image on the surface without overlapping of the image portions where each image projection device consists of a double convex lens for projecting its corresponding portion of the object image; a reflecting focusing means for reflectively focusing the image portion projected by said lens back through said lens; and further reflecting means for projecting the image portion projected back through said lens onto said surface so that all of the image portions may be merged into a single image on the surface, said further reflecting means comprises a semi-transparent reflector angularly disposed with respect to the optical axis of said double convex lens between said double convex lens and said object image so that the light rays pass from said object through said semi-transparent reflector and double convex lens to said refractive reflecting means where an inverted, actual image of said object is formed, said light rays being reflected back through said lens and again reflected from said semi-transparent reflector onto said surface where a regular, actual image of said object is formed.
Claim 3
Dependent Claim
224 words
An array of optical image projection devices where each image projection device projects a portion of an object image onto a surface to form the entire object image on the surface without overlapping of the image portions where each image projection device consists of a double convex lens for projecting its corresponding portion of the object image; a reflecting focusing means for reflectively focusing the image portion projected by said lens back through said lens; and further reflecting means for projecting the image portion projected back through said lens onto said surface so that all of the image portions my be merged into a single image on the surface, said further reflecting means comprises a reflector disposed in the path of the light rays from said object image so that approximately half of said light rays are prevented from initially passing through said double convex lens, said reflector being so angularly disposed with respect to the optical axis of said double convex lens that the remaining half of said light rays are projected by said double convex lens into said refractive reflecting means where an inverted, actual image of said object is formed, said light rays being reflected back through said double convex lens into said reflector where they are reflected on said surface where a regular, actual image of said object is formed.
Claim 4
Dependent Claim
224 words
An array of optical image projection devices where each image projection device projects a portion of an object image onto a surface to form the entire object image on the surface without overlapping of the image portions where each image projection device consists of a double convex lens for projecting its corresponding portion of the object image; a reflecting focusing means for reflectively focusing the image portion projected by said lens back through said lens; and further reflecting means for projecting the image portion projected back through said lens onto said surface so that all of the image portions my be merged into a single image on the surface, said further reflecting means comprises a reflector disposed in the path of the light rays from said object image so that approximately half of said light rays are prevented from initially passing through said double convex lens, said reflector being so angularly disposed with respect to the optical axis of said double convex lens that the remaining half of said light rays are projected by said double convex lens into said refractive reflecting means where an inverted, actual image of said object is formed, said light rays being reflected back through said double convex lens into said reflector where they are reflected on said surface where a regular, actual image of said object is formed.
Claim 5
Dependent Claim
25 words
The improvement as in claim 2 where each said reflector is a portion of an integral reflector which extends the entire length of said array.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |