US4209225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable microscope for following axial displacement of an object
Assignee: Konan Camera Research Institue Inc
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Filing: 1979-01-15
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Granted: 1980-06-24
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Expires: 1999-01-15
Abstract
Abstract A microscope for use in applications wherein the object to be observed may move in a path along the optical axis of the microscope which includes an objective lens, collimating lens for producing a parallel beam, and an imaging lens for focusing the parallel beam to form an image, the objective and collimating lenses being movable with the object being observed.
Inventors
- 👤 Kumiomi Abe
- 👤 Susumu Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/24; G02B21/26; A; A61; A61B; A61B3/00; A61B3/10; A61B3/13
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
A microscope comprising objective lens means having a contact surface at the front end, which is to be placed in contact with an object to be observed, collimating means located to the rear of said objective lens means for converting a light beam coming through said objective lens means from a predetermined optical point adjacent to said contact surface of said objective lens means into a parallel beam, imaging means located to to the rear of said collimating means for focusing said parallel beam to form an image of said optical point at a predetermined position, said objective lens means and collimating means being fixedly positioned one relative to the other and axially movable with respect to said imaging means, and means for urging said objective lens means and collimating means together away from said imaging means and in the direction of said object, whereby said contact surface of said objective lens means is maintained in contact with the object to be observed and will follow axial movement of the object without displacement of the image from said predetermined position.
Claim 2
Dependent Claim
180 words
A microscope comprising objective lens means having a contact surface at the front end, which is to be placed in contact with an object to be observed, collimating means located to the rear of said objective lens means for converting a light beam coming through said objective lens means from a predetermined optical point adjacent to said contact surface of said objective lens means into a parallel beam, imaging means located to to the rear of said collimating means for focusing said parallel beam to form an image of said optical point at a predetermined position, said objective lens means and collimating means being fixedly positioned one relative to the other and axially movable with respect to said imaging means, and means for urging said objective lens means and collimating means together away from said imaging means and in the direction of said object, whereby said contact surface of said objective lens means is maintained in contact with the object to be observed and will follow axial movement of the object without displacement of the image from said predetermined position.
Claim 3
Dependent Claim
41 words
A microscope according to claim 1, wherein said microscope further comprises indicating means for responding to said axial movement of said objective lens means and collimating means and provides an indication of both excessive and insufficient contact pressure with said object.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |