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US4533220A Expired / Lapsed US ⏱️ 0.0 years remaining

Indicating device for indicating data within the visual field of microscope

Assignee: Olympus Corp
•
Filing: 1982-10-15
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Granted: 1985-08-06
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Expires: 2002-10-15
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Abstract

Abstract There is an indicating device constituted so as to be apt to indicate the data such as the magnification ratio of an objective lens, the value of NA, the data or the like in the visual field of a microscope and at the same time to record these data in photograph. This indicating device is provided with a display means (17) able to indicate various sorts of data informations through the data processor (16) and polarizing prisms (10, 11) arranged between the objective lens (9), display means (17), photographing lens (14) and eyepiece (13) to divide the light bundle from the objective lens (9) and the light bundle from the data display means (17) respectively and to make them advance to the eyepiece (13) and photographing lens (14), and the data informations displayed on the display means (17) are imaged on the image forming face (12) inside the eyepiece (13) and on the dry-plate (15). This indicating device may use, instead of the above mentioned polarizing prism, the optical fiber bundle (19) arranged between the data display means (17) and eyepiece barrel (22) to image the data information displayed on the display means (17) on the image forming face (12) inside the eyepiece (13).

Inventors

  • 👤 Hiroyuki Kurita
  • 👤 Yuko Kobayashi
  • 👤 Shinichi Dosaka
  • 👤 Juro Kikuchi
  • 👤 Hiroshi Takase
  • 👤 Kenichi Harada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:10
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 102 words
An indicating device for indicating data in a visual field of a microscope comprising: an objective lens, and eyepiece, a light reflecting means arranged obliquely to an optical axis of said objective lens and having a transparent portion at a site located outside of said optical axis; data display means arranged above said light reflecting means; a light leading optical system for leading thereinto an information light from said display means through said transparent portion; and a reflecting surface reflecting a light reflected by said reflecting means and a light led in through said transparent portion to direct them to said eyepiece.
Claim 2
Dependent Claim 102 words
An indicating device for indicating data in a visual field of a microscope comprising: an objective lens, and eyepiece, a light reflecting means arranged obliquely to an optical axis of said objective lens and having a transparent portion at a site located outside of said optical axis; data display means arranged above said light reflecting means; a light leading optical system for leading thereinto an information light from said display means through said transparent portion; and a reflecting surface reflecting a light reflected by said reflecting means and a light led in through said transparent portion to direct them to said eyepiece.

References Cited (Backward Citations)

FR873654A Cited
DE1058760B Cited
DE1103619B Cited
US3671100A Cited
US4057318A Cited
JPS5010660A Cited
JPS5011029A Cited
JPS5023619A Cited
JPS5149720A Cited
JPS5122440A Cited
US4113354A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-08-05 1989-02-04 1989-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-08-05 1993-02-04 1993-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-08-05 1997-02-04 1997-08-06 $7700.00 Window Closed / Lapsed

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