GB848372A - Slit lamp for eye examination - Google Patents

Slit lamp for eye examination

Info

Publication number
GB848372A
GB848372A GB27621/58A GB2762158A GB848372A GB 848372 A GB848372 A GB 848372A GB 27621/58 A GB27621/58 A GB 27621/58A GB 2762158 A GB2762158 A GB 2762158A GB 848372 A GB848372 A GB 848372A
Authority
GB
United Kingdom
Prior art keywords
filament
slit
eye
image
light source
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
GB27621/58A
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.)
Bausch and Lomb Inc
Original Assignee
Bausch and Lomb Inc
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 Bausch and Lomb Inc filed Critical Bausch and Lomb Inc
Publication of GB848372A publication Critical patent/GB848372A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A61B3/135—Slit-lamp microscopes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

848,372. Sight testing apparatus. BAUSCH & LOMB OPTICAL CO. Aug. 28, 1958 [Nov. 27, 1957], No. 27621/58. Class 97(1) Apparatus for examining the human eye comprises a slit and means for illuminating the slit and projecting the light on to the eye, including a light source with a heat transmitting concave mirror behind it arranged so as to form an image of the light source filament in the plane of and adjacent the actual filament. In the apparatus shown the eye is viewed through a microscope M and is illuminated by an optical system in a tube 15. The optical system comprises a light source 17 with a filament 18 placed near the centre of curvature of a heat transmitting mirror 24, e.g. a multilayer interference coating on a glass base, and which forms an image 18' of the filament (Fig. 3). Light from the source is focussed by a condensing lens system 21 placed 10-25mm from the filament on to an adjustable slit 20 and an image of the slit is projected into the patient's eye by a lens 22 and a prism 23.
GB27621/58A 1957-11-27 1958-08-28 Slit lamp for eye examination Expired GB848372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US848372XA 1957-11-27 1957-11-27

Publications (1)

Publication Number Publication Date
GB848372A true GB848372A (en) 1960-09-14

Family

ID=22187523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27621/58A Expired GB848372A (en) 1957-11-27 1958-08-28 Slit lamp for eye examination

Country Status (1)

Country Link
GB (1) GB848372A (en)

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