US3637283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereomicroscope with illumination by specularly reflected light
Assignee: Olympus Corp
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Filing: 1970-07-06
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Granted: 1972-01-25
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Expires: 1990-07-06
Abstract
Abstract Illuminating system for a stereoscopic microscope which directs a pair of illuminating light beams toward the viewed object. The angle formed between the beams is equal to the parallax angle formed between the optical axes of the two objective lenses of the microscope while the plane defined by the bisectors of the parallax angle and of the angle between the illuminating beams is perpendicular to the planes respectively defined by the optical axes of the objective lenses and the illuminating beams, the optical axes and the illuminating beams converging in a common point on the surface of the object, thereby permitting the light from the respective illuminating beams to be directly reflected by the surface of the object to a respective objective lens so that the object is observed in a bright field of view while the stereoscopic observation of the object is carried out.
Inventors
- 👤 Toshio Tasaki
- 👤 Keiji Fukao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:17
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20; G02B21/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
A stereoscopic microscope comprising, in combination: a. a support; b. holding means on said support for holding an object to be viewed; c. two optical systems on said support including respective objective lenses and eyepieces and having respective optical axes converging at a first angle in a point of an object held by said holding means; and d. source means on said support for emitting two beams of light, 1 said beams converging in said point at a second angle equal to said first angle, 2. said angles having respective bisectors converging in said point at a third angle, 3. said optical axes, said beams, and said bisectors defining respective planes, the planes respectively defined by said optical axes and by said beams intersecting each other in a line through said point, and the plane defined by said bisectors being perpendicular to said line and to each of said planes intersecting each other in said line.
Claim 2
Dependent Claim
156 words
A stereoscopic microscope comprising, in combination: a. a support; b. holding means on said support for holding an object to be viewed; c. two optical systems on said support including respective objective lenses and eyepieces and having respective optical axes converging at a first angle in a point of an object held by said holding means; and d. source means on said support for emitting two beams of light, 1 said beams converging in said point at a second angle equal to said first angle, 2. said angles having respective bisectors converging in said point at a third angle, 3. said optical axes, said beams, and said bisectors defining respective planes, the planes respectively defined by said optical axes and by said beams intersecting each other in a line through said point, and the plane defined by said bisectors being perpendicular to said line and to each of said planes intersecting each other in said line.
Claim 3
Dependent Claim
13 words
said angles having respective bisectors converging in said point at a third angle,
Claim 4
Dependent Claim
13 words
said angles having respective bisectors converging in said point at a third angle,
Claim 5
Dependent Claim
40 words
A microscope as set forth in claim 1, wherein said holding means include means for holding a surface of said object in a position in which the bisector of said third angle is perpendicular to said surface in said point.
Claim 6
Dependent Claim
56 words
said optical axes, said beams, and said bisectors defining respective planes, the planes respectively defined by said optical axes and by said beams intersecting each other in a line through said point, and the plane defined by said bisectors being perpendicular to said line and to each of said planes intersecting each other in said line.
Claim 7
Dependent Claim
56 words
said optical axes, said beams, and said bisectors defining respective planes, the planes respectively defined by said optical axes and by said beams intersecting each other in a line through said point, and the plane defined by said bisectors being perpendicular to said line and to each of said planes intersecting each other in said line.
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |