GB1167357A - Improvements in Microscopes - Google Patents

Improvements in Microscopes

Info

Publication number
GB1167357A
GB1167357A GB5147566A GB5147566A GB1167357A GB 1167357 A GB1167357 A GB 1167357A GB 5147566 A GB5147566 A GB 5147566A GB 5147566 A GB5147566 A GB 5147566A GB 1167357 A GB1167357 A GB 1167357A
Authority
GB
United Kingdom
Prior art keywords
vision
microscope
focal plane
microscopes
eyepiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5147566A
Inventor
Robin John Freeman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VISION ENG
Original Assignee
VISION ENG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VISION ENG filed Critical VISION ENG
Priority to GB5147566A priority Critical patent/GB1167357A/en
Publication of GB1167357A publication Critical patent/GB1167357A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G02B21/08—Condensers

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

1,167,357. Microscopes. VISION ENG. Ltd. Feb.15, 1968 [Nov.17, 1966], No.51475/66. Heading G2J. A microscope has a mechanical chopper in the light path through the microscope. A rotating disc having a series of apertures is located in the focal plane of the condenser lens system or in the focal plane of the eyepiece. A light intensity which is higher than that which the eye can receive under steady conditions of illumination is used to increase the contrast of the observed image, and the frequency of interruption is at or.above the persistence of vision.
GB5147566A 1966-11-17 1966-11-17 Improvements in Microscopes Expired GB1167357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5147566A GB1167357A (en) 1966-11-17 1966-11-17 Improvements in Microscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5147566A GB1167357A (en) 1966-11-17 1966-11-17 Improvements in Microscopes

Publications (1)

Publication Number Publication Date
GB1167357A true GB1167357A (en) 1969-10-15

Family

ID=10460168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5147566A Expired GB1167357A (en) 1966-11-17 1966-11-17 Improvements in Microscopes

Country Status (1)

Country Link
GB (1) GB1167357A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees