Patent US5087112A successfully refreshed from Google Patents.
US5087112A
Expired / Lapsed
US
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Optical magnifier apparatus
Assignee: Designs for Vision Inc
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Filing: 1990-07-19
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Granted: 1992-02-11
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Expires: 2010-07-19
Abstract
Abstract A magnifying assembly of the type employing a lens surrounded by a plastic or metal holding is placed in a light diffuser, which light diffuser is an annular member having an open top which is associated with a peripheral flange upon which the magnifying lens rests. The member has a bottom opening which is associated with an annular curved flange which is abraded so as to uniformly diffuse light over the surface of a document to be read whereby the area enclosed by the bottom opening of the annual member is uniformly illuminated by a light source.
Inventors
- 👤 Richard E. Feinbloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:03
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/02; G02B5/0205; G02B5/021; G02B5/0221; G02B25/00; G02B25/02; G02B5/0273; G02B5/0284
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
An optical magnifier apparatus including a magnifier glass and a support for said magnifier glass, said support being adapted to rest on a document to be read, wherein said support comprises a hollow tubular member having a sidewall, an open upper end which receives said magnifier glass and an open lower end which rests on a document to be read, and means for introducing light into said sidewall, said sidewall including light exit means, said light exit means including a roughened slanted wall on an inner surface of said sidewall wherein said slanted wall faces toward said open lower end of said support and is adapted to face a document on which said support is seated, and said light exit means permits light to exit said sidewall to be reflected in different directions to uniformly illuminate a portion of the hollow of said tubular member proximate said lower end thereof.
Claim 2
Dependent Claim
150 words
An optical magnifier apparatus including a magnifier glass and a support for said magnifier glass, said support being adapted to rest on a document to be read, wherein said support comprises a hollow tubular member having a sidewall, an open upper end which receives said magnifier glass and an open lower end which rests on a document to be read, and means for introducing light into said sidewall, said sidewall including light exit means, said light exit means including a roughened slanted wall on an inner surface of said sidewall wherein said slanted wall faces toward said open lower end of said support and is adapted to face a document on which said support is seated, and said light exit means permits light to exit said sidewall to be reflected in different directions to uniformly illuminate a portion of the hollow of said tubular member proximate said lower end thereof.
Claim 3
Dependent Claim
40 words
The apparatus defined in claim 1, wherein said sidewall is fabricated from a light conducting material and includes a depression into which a source of light can be inserted for the purpose of causing light to flow into said sidewall.
Claim 4
Dependent Claim
21 words
The apparatus defined in claim 2, wherein said sidewall has an outer surface and said depression is in said outer surface.
Claim 5
Dependent Claim
36 words
The apparatus defined in claim 3 and including a sleeve secured to the outer surface of said sidewall of said support in alignment with said depression, said sleeve being adapted to receive a source of light.
Claim 6
Dependent Claim
18 words
The apparatus defined in claim 4, wherein said sleeve is generally tubular and can receive a tubular flashlight.
Claim 7
Dependent Claim
12 words
The apparatus defined in claim 1, wherein said slanted wall is annular.
Claim 8
Dependent Claim
213 words
An optical magnifier apparatus comprising: a support adapted to support a magnifier glass over a document to be read, said support comprising a tubular member having a sidewall with open upper and open lower ends, a thickened wall portion comprising a portion of said sidewall and disposed between said open upper end and said open lower end of said support, an annular horizontal flat surface at an upper end of said thickened wall portion and spaced from said open upper end, an annular slanted surface at a lower end of said thickened wall portion and spaced above said open lower end of said sidewall, said slanted surface facing toward said open lower end of said sidewall and thus adapted to face the surface of a document on which said support is placed, said slanted surface being roughened to reflect light in different directions when light impinges on said roughened surface, and a depression in said thickened wall portion of said sidewall but not extending through said thickened wall portion, said depression being adapted to receive a source of light such that light from said source can enter into said thickened wall portion and exit said thickened wall portion through said slanted surface to uniformly illuminate the surface of a document to be read.
Claim 9
Dependent Claim
213 words
An optical magnifier apparatus comprising: a support adapted to support a magnifier glass over a document to be read, said support comprising a tubular member having a sidewall with open upper and open lower ends, a thickened wall portion comprising a portion of said sidewall and disposed between said open upper end and said open lower end of said support, an annular horizontal flat surface at an upper end of said thickened wall portion and spaced from said open upper end, an annular slanted surface at a lower end of said thickened wall portion and spaced above said open lower end of said sidewall, said slanted surface facing toward said open lower end of said sidewall and thus adapted to face the surface of a document on which said support is placed, said slanted surface being roughened to reflect light in different directions when light impinges on said roughened surface, and a depression in said thickened wall portion of said sidewall but not extending through said thickened wall portion, said depression being adapted to receive a source of light such that light from said source can enter into said thickened wall portion and exit said thickened wall portion through said slanted surface to uniformly illuminate the surface of a document to be read.
Claim 10
Dependent Claim
18 words
The optical magnifier apparatus according to claim 7, wherein said support is fabricated from a light conducting material.
Claim 11
Dependent Claim
15 words
The optical magnifier apparatus according to claim 8, wherein said material is a clear plastic.
Claim 12
Dependent Claim
25 words
The optical magnifier apparatus according to claim 7 further including a light absorbing layer covering the outer surface of said sidewall of said tubular member.
Claim 13
Dependent Claim
25 words
The optical magnifier apparatus according to claim 7, further including a light reflecting layer covering the outer surface of said sidewall of said tubular member.
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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) | 1995-02-10 | 1995-08-12 | 1996-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-10 | 1999-08-12 | 2000-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-10 | 2003-08-12 | 2004-02-11 | $7700.00 | Window Closed / Lapsed |