Patent US5087154A successfully refreshed from Google Patents.
Patent US3786244A successfully refreshed from Google Patents.
US3786244A
Expired / Lapsed
US
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Surgical lamp
Assignee: Physical Systems Inc
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Filing: 1972-10-02
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Granted: 1974-01-15
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Expires: 1992-10-02
Abstract
Abstract A lamp of the type used in surgical operating rooms comprising a Fresnel lens surrounding a light source for forming a substantially plane beam, a lens having vertically extending cylindrical lenticulations thereon surrounding the Fresnel lens for dividing the plane beam into a multiplicity of outwardly extending beams, and a plurality of reflectors mounted on a ring which surrounds the lenticular lens for reflecting the outwardly extending beams to form a cone of light.
Inventors
- 👤 C Hutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:31
CPC Classifications
F; F21; F21S; F21S8/00; F21S6/00; F21S6/002; F21S6/003; F21V; F21V5/00; F21V5/04; F21V5/045; F21V17/00; F21V17/04; F21V25/00; F21V25/02; F21W; F21W2131/00; F21W2131/20; F21W2131/205; Y; Y10; Y10S; Y10S362/00; Y10S362/804
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A lamp of the type used in surgical operating rooms comprising: a concentrated light source; means for supporting said concentrated light source; Fresnel lens means surrounding said light source and acting to form a substantially plane beam; lens means having vertically extending cylindrical lenticulations thereon surrounding said Fresnel lens means and acting to divide said plane beam into a multiplicity of outwardly extending beams; ring means spaced from said lenticular lens means; and a multiplicity of reflector means mounted on said ring means and acting to reflect said outwardly extending beams to form a cone of light beams.
Claim 2
Dependent Claim
98 words
A lamp of the type used in surgical operating rooms comprising: a concentrated light source; means for supporting said concentrated light source; Fresnel lens means surrounding said light source and acting to form a substantially plane beam; lens means having vertically extending cylindrical lenticulations thereon surrounding said Fresnel lens means and acting to divide said plane beam into a multiplicity of outwardly extending beams; ring means spaced from said lenticular lens means; and a multiplicity of reflector means mounted on said ring means and acting to reflect said outwardly extending beams to form a cone of light beams.
Claim 3
Dependent Claim
64 words
A lamp as defined in claim 1 in which said multiplicity of reflectors are shaped and positioned so that each of said outwardly extending beams impinges upon a plurality of said reflectors, whereby said cone will substantially uniformly illuminate an area spaced from said light source and smaller than said ring, every point in said area receiving light from a plurality of said reflectors.
Claim 4
Dependent Claim
48 words
A lamp as defined in claim 1 in which said outwardly extending beams are projected in the form of diverging beams, whereby each of said outwardly extending beams impinges upon a plurality of said reflectors, and each of said reflectors receives light from a plurality of said beams.
Claim 5
Dependent Claim
97 words
A lamp as defined in claim 1 in which said lenticular lens means forms said outwardly extending beams into diverging beams within the projected boundaries of said plane beam, and said reflectors are shaped and positioned so that a plurality of said diverging beams impinge upon each said reflector, and each of said diverging beams impinges upon a plurality of said reflectors, whereby said cone of light beams will substantially uniformly illuminate an area spaced from said light source and smaller than said ring, every point in said area receiving light from a plurality of said reflectors.
Claim 6
Dependent Claim
59 words
A lamp as defined in claim 1 in which said lenticular lens means is removably supported at one end and in turn supports said Fresnel lens means and said means for supporting said light source, whereby said lenticular lens means, said Fresnel lens means, said supporting means and said light source may be installed and removed as a unit.
Claim 7
Dependent Claim
73 words
A lamp as defined in claim 1 in which said lenticular lens means is removably mounted in a holder and in turn supports said Fresnel lens means and said means for supporting said light source, all of said elements being held together in the required optical alignment, whereby said lenticular lens means carries with it said Fresnel lens means, said supporting means and said light source for installation and removal as a unit.
References Cited (Backward Citations)
US1842855A
Cited
US2215634A
Cited
US2433982A
Cited
US2665369A
Cited
US3075071A
Cited
US3221162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |