US5035476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Confocal laser scanning transmission microscope
Assignee: Hamamatsu Photonics KK
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Filing: 1990-06-15
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Granted: 1991-07-30
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Expires: 2010-06-15
Abstract
Abstract This invention relates to a confocal laser scanning transmission microscope including a deflecting element for deflecting a light beam at a set scanning frequency in a main scanning direction and an auxiliary scanning direction perpendicular to the main scanning direction to irradiate the light spot to a specimen, and the microscope further comprises an infinity compensating objective lens for collecting a transmitted light through the specimen to form into a parallel beam and a cube-corner-reflector disposed on the opposite side of the specimen across the objective lens and on the exit pupil position of the infinity compensating objective lens.
Inventors
- 👤 Gordon W. Ellis
- 👤 Koji Ichie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:16
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/002; G02B21/0024; G02B21/0032
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
A confocal laser scanning transmission microscope including a deflecting element for deflecting a light beam at a set scanning frequency in a main scanning direction and an auxiliary scanning direction perpendicular to the main scanning direction to irradiate the light spot to a specimen, the microscope comprising: an infinity compensating objective lens for collecting a light beam transmitted through the specimen to form into a parallel beam; and a cube-corner-reflector disposed on the opposite side of the specimen across the infinity compensating objective lens and on the exit pupil position of the infinity compensating objective lens.
Claim 2
Dependent Claim
96 words
A confocal laser scanning transmission microscope including a deflecting element for deflecting a light beam at a set scanning frequency in a main scanning direction and an auxiliary scanning direction perpendicular to the main scanning direction to irradiate the light spot to a specimen, the microscope comprising: an infinity compensating objective lens for collecting a light beam transmitted through the specimen to form into a parallel beam; and a cube-corner-reflector disposed on the opposite side of the specimen across the infinity compensating objective lens and on the exit pupil position of the infinity compensating objective lens.
Claim 3
Dependent Claim
46 words
A confocal laser scanning transmission microscope according to claim 1 further comprising an objective lens disposed on the opposite side of the infinity compensating objective lens across the specimen, and the light beam irradiated to the specimen passes through the entrance pupil of this objective lens.
References Cited (Backward Citations)
US3488104A
Cited
US3664751A
Cited
US3715152A
Cited
US4368982A
Cited
US4934779A
Cited
US4973115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |