US4089593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable viewer
Assignee: Xerox Corp
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Filing: 1976-09-20
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Granted: 1978-05-16
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Expires: 1996-09-20
Abstract
Abstract A portable viewer for microfiche transparencies. The viewer comprises a pair of spaced members between which the transparency to be viewed is inserted. A viewing system including an adjustable lens on one member and an optically aligned aperture in the other member is provided, the lens being adjustable to permit the focus thereof to be changed with lock means to retain the lens in selected focusing position. A swing away light diffuser, and auxiliary light source are provided, the diffuser serving to diffuse artificial light and, when desired, natural light. A table stand and wall attaching magnets are included to permit the viewer to be operated in a free standing fashion or to be supported on an adjoining wall surface.
Inventors
- 👤 Stanley E. Bernard
- 👤 Soto F. Flouris
- 👤 Edward C. Malhoit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:45
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
270 words
A device for viewing a microfiche transparency having discrete image areas arranged thereon in X -- Y coordinates, comprising: support means forming a viewing station, said support means including first and second elongated members, and means attaching said members together in substantially parallel spaced relationship adjacent one end thereof whereby the inner walls of said members form a slot-like opening therebetween adjacent the free end thereof for receipt of a microfiche transparency, the free ends of said members being free to spring apart to facilitate insertion and removal of a microfiche transparency therebetween; a viewing system on said support means arranged in optically aligned relationship for viewing the image area of a microfiche transparency disposed in said slot-like opening, said viewing system including a lens disposed on said first member adjacent the free end thereof, a light admitting aperture in said second member adjacent the free end thereof and in optical alignment with said lens, said lens and aperture cooperating to enable the image area of a microfiche transparency disposed in said slot-like opening to be viewed, light diffusing means selectively interposable across said aperture, auxiliary lamp means for illuminating the microfiche transparency in said slot-like opening, and means for releasably attaching said auxiliary lamp means to the outside wall of said second member in overlaying relationship with said aperture whereby on energization of said auxiliary lamp means the image area of the microfiche transparency in said slot-like opening is illuminated for viewing thereof; and interlock means to inhibit attaching of said auxiliary lamp means to said second member except when said light diffusing means is interposed across said aperture.
Claim 2
Independent Claim
270 words
A device for viewing a microfiche transparency having discrete image areas arranged thereon in X -- Y coordinates, comprising: support means forming a viewing station, said support means including first and second elongated members, and means attaching said members together in substantially parallel spaced relationship adjacent one end thereof whereby the inner walls of said members form a slot-like opening therebetween adjacent the free end thereof for receipt of a microfiche transparency, the free ends of said members being free to spring apart to facilitate insertion and removal of a microfiche transparency therebetween; a viewing system on said support means arranged in optically aligned relationship for viewing the image area of a microfiche transparency disposed in said slot-like opening, said viewing system including a lens disposed on said first member adjacent the free end thereof, a light admitting aperture in said second member adjacent the free end thereof and in optical alignment with said lens, said lens and aperture cooperating to enable the image area of a microfiche transparency disposed in said slot-like opening to be viewed, light diffusing means selectively interposable across said aperture, auxiliary lamp means for illuminating the microfiche transparency in said slot-like opening, and means for releasably attaching said auxiliary lamp means to the outside wall of said second member in overlaying relationship with said aperture whereby on energization of said auxiliary lamp means the image area of the microfiche transparency in said slot-like opening is illuminated for viewing thereof; and interlock means to inhibit attaching of said auxiliary lamp means to said second member except when said light diffusing means is interposed across said aperture.
Claim 3
Dependent Claim
27 words
The device according to claim 1 including means for adjusting the focus of said lens, and lock means for releasably retaining said lens in the focus selected.
Claim 4
Dependent Claim
27 words
The device according to claim 1 in which said lens includes an eye cup to facilitate viewing, said eye cup being disposable selectively to an inoperative position.
Claim 5
Dependent Claim
100 words
The device according to claim 1 in which said auxiliary lamp means includes a housing, a lamp in said housing, a source of electrical energy, and switch means for selectively coupling said lamp to said energy source to energize said lamp; said releaseable attaching means including a pin-like projection on the outer wall of said second member adjacent said aperture, and a slot in said housing for receiving said projection upon disposition of said lamp means housing in face-to-face sliding relationship with the outer wall of said second member whereby to releasably attach said auxiliary lamp means to said device.
Claim 6
Dependent Claim
28 words
The device according to claim 4 in which disposition of said light diffusing means to an inoperative position prevents receipt of said projection in said lamp means slot.
Claim 7
Dependent Claim
32 words
The device according to claim 1 including a magnet on the outside wall of said second member for supporting said device on ferro magnetic surfaces when said auxiliary lamp means is removed.
Claim 8
Dependent Claim
47 words
The device according to claim 6 in which said auxiliary lamp means includes a housing having an exterior wall, and a second magnet on said lamp means housing exterior wall to permit said device with said auxiliary lamp means to be releaseably attached to ferro magnetic surfaces.
Claim 9
Dependent Claim
25 words
The device according to claim 1 in which said auxiliary lamp means includes means for selectively supporting said device in viewing position on a surface.
Claim 10
Dependent Claim
31 words
The device according to claim 1 in which the inside walls of said members are tapered outwardly whereby to form a diverging opening to facilitate insertion of a microfiche transparency therewithin.
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |