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US3846008A Expired / Lapsed US ⏱️ 0.0 years remaining

Measurement microscope

Assignee: Nikon Corp
•
Filing: 1973-09-26
•
Granted: 1974-11-05
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Expires: 1993-09-26
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Abstract

Abstract In a measurement microscope comprising an eyepiece assembly including an eyepiece and a microscope body tube having an objective relative to which the eyepiece assembly is rotatable, the eyepiece assembly comprises an outer frame for securing the eyepiece therein, a movable member connected to the outer member for sliding movement relative to and within the outer frame in a first direction perpendicular to the optical axis of the eyepiece, and intermediate frame connected to the movable member for movement relative to the movable member in a second direction perpendicular to the optical axis, and an inner frame connected to the intermediate frame for movement relative to the intermediate frame in the second direction. The intermediate and inner frames are provided with respective transparent scale plates, which have scale marks formed so as to register with the focal plane of the objective in which the image of a sample is formed. These scale marks are arranged in orthogonal directions forming an angle of 45* with the first and second directions. The movable member, the intermediate and the inner frame are adjustable and movable by means of extraneously operable knobs.

Inventors

  • 👤 M Sobajima
  • 👤 J Kato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 01:32
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0016

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 213 words
A measurement microscope comprising: an eyepiece assembly including an eyepiece; and a microscope body tube including an objective optically aligned with said eyepiece, said eyepiece assembly being rotatable relative to said microscope body tube; said eyepiece assembly comprising: an outer frame member having said eyepiece secured therewithin; a movable member mounted in said outer frame member for slidable movement relative to and within said outer frame member in a first direction perpendicular to the optical axis of said eyepiece; an intermediate frame member mounted on said movable member for movement relative to said movable member in a second direction perpendicular to said optical axis and said first direction; an inner frame member mounted on said intermediate frame member for movement relative to said intermediate frame member in said second direction; and two transparent scale plates secured to said intermediate frame member and said inner frame member, respectively, said scale plates bearing scale marks so as to register with an image plane in which the image of a sample is formed by said objective, said scale marks of said two scale plates being arranged in two orthogonal directions forming an angle of 45* with said first and second directions; said movable member, said intermediate and said inner frame member being extraneously adjustable and movable.
Claim 2
Dependent Claim 213 words
A measurement microscope comprising: an eyepiece assembly including an eyepiece; and a microscope body tube including an objective optically aligned with said eyepiece, said eyepiece assembly being rotatable relative to said microscope body tube; said eyepiece assembly comprising: an outer frame member having said eyepiece secured therewithin; a movable member mounted in said outer frame member for slidable movement relative to and within said outer frame member in a first direction perpendicular to the optical axis of said eyepiece; an intermediate frame member mounted on said movable member for movement relative to said movable member in a second direction perpendicular to said optical axis and said first direction; an inner frame member mounted on said intermediate frame member for movement relative to said intermediate frame member in said second direction; and two transparent scale plates secured to said intermediate frame member and said inner frame member, respectively, said scale plates bearing scale marks so as to register with an image plane in which the image of a sample is formed by said objective, said scale marks of said two scale plates being arranged in two orthogonal directions forming an angle of 45* with said first and second directions; said movable member, said intermediate and said inner frame member being extraneously adjustable and movable.
Claim 3
Dependent Claim 65 words
A measurement microscope according to claim 1, in which a counter is secured to said intermediate frame member, the counter being positioned externally of the outer frame member, a measuring knob being provided to move the scale plate on the inner frame member, and means transmitting the rotational movement of the measuring knob to the counter to express the moving distance of the scale plate.

References Cited (Backward Citations)

US2942345A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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