GB414856A - Improvements in optical systems for cystoscopes and the like - Google Patents

Improvements in optical systems for cystoscopes and the like

Info

Publication number
GB414856A
GB414856A GB1361033A GB1361033A GB414856A GB 414856 A GB414856 A GB 414856A GB 1361033 A GB1361033 A GB 1361033A GB 1361033 A GB1361033 A GB 1361033A GB 414856 A GB414856 A GB 414856A
Authority
GB
United Kingdom
Prior art keywords
cystoscopes
optical systems
window
liquid
lens
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
GB1361033A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1361033A priority Critical patent/GB414856A/en
Publication of GB414856A publication Critical patent/GB414856A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Urology & Nephrology (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

414,856. Cystoscopes &c. SCHRANZ, R., 28A, Devonshire Street, Portland Place, London. May 10, 1933, No. 13610. [Class 81 (ii).] In cystoscopes and other instruments for viewing objects immersed in a liquid, wherein the optical system includes a window 4 in the outer casing 1 and may comprise an objective lens 2 and a prism 3, the window 4 comprises a lens having a concave face in contact with the liquid 5, the other face preferably being plane.
GB1361033A 1933-05-10 1933-05-10 Improvements in optical systems for cystoscopes and the like Expired GB414856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1361033A GB414856A (en) 1933-05-10 1933-05-10 Improvements in optical systems for cystoscopes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1361033A GB414856A (en) 1933-05-10 1933-05-10 Improvements in optical systems for cystoscopes and the like

Publications (1)

Publication Number Publication Date
GB414856A true GB414856A (en) 1934-08-16

Family

ID=10026160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1361033A Expired GB414856A (en) 1933-05-10 1933-05-10 Improvements in optical systems for cystoscopes and the like

Country Status (1)

Country Link
GB (1) GB414856A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661658A (en) * 1948-07-19 1953-12-08 Ass Elect Ind Optical system for increasing the working distances of microscope objectives
US2730014A (en) * 1951-02-22 1956-01-10 Ivanoff Optical system for distortionless underwater vision
US5148195A (en) * 1991-04-18 1992-09-15 Eastman Kodak Company Lens system having predetermined focusing power in different mediums, such as air and water, for providing a close up lens which may be attached to a camera either in air or underwater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661658A (en) * 1948-07-19 1953-12-08 Ass Elect Ind Optical system for increasing the working distances of microscope objectives
US2730014A (en) * 1951-02-22 1956-01-10 Ivanoff Optical system for distortionless underwater vision
US5148195A (en) * 1991-04-18 1992-09-15 Eastman Kodak Company Lens system having predetermined focusing power in different mediums, such as air and water, for providing a close up lens which may be attached to a camera either in air or underwater

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