993.927.1: Slit Lamp Microscope, 1930-1950

Additional Images

993.927.1: Slit Lamp Microscope.
Image No. 3222 ; Photographer: Helen Kingsley

Object Description

A slit lamp and microscope on a semi-circular shaped glass-topped table with three legs. The lamp housing is attached to the table frame on an adjustable upright column and is mounted on a jointed swivel-arm, and supported on a long arm. Along the arm next to the lamp housing is a diaphragm-tube to cut off redundant light and has a fitting to hold colour-filters. At the far end of the arm is a focusing lens in a frame, which can be racked horizontally to and fro and vertically up and down by means of a screw/fitting underneath. A chin/forehead frame unit with a tilting mechanism and white plastic chin and forehead rests is also attached to the table frame. A free-standing binocular stereoscopic microscope stands on the table top. The microscope is mounted onto a rack and pinion assembly and is moved backward and forwards by two adjustment knobs. The rack and pinion assembly is attached to an adjustable upright column. The microscope has a x10 eyepiece in an eyepiece tube [second eyepiece and tube missing] and two 65M/M objectives. A transformer is attached to the table frame with black rubber power flex and a two pronged plug extending from it. A label attached to the transformer reads ‘DAVENSET Made in Leicester’. ‘MADE IN ENGLAND’ is engraved into the lamp housing.

Object Classification

Accession Number: 993.927.1
Collection: Ophthalmology
Date: 1930-1950

Object Dimensions

  • Height: 121 cm
  • Width: 52 cm
  • Depth: 80 cm

Object Parts

  • a) Slit lamp and table
  • b) Binocular microscope

Object Materials

  • aluminium,
  • cast iron,
  • chrome plate,
  • copper alloy,
  • enameled paint,
  • filament,
  • glass,
  • metal,
  • nickel plate,
  • paint,
  • plastic,
  • rubber,
  • unidentified coating,
  • wood,
  • wool felt

Acquisition Detail

  • Manufacturer: Partridge Wilson and Co Ltd (Transformer)
  • History of Use: A slit lamp allows close surface examination of the front of the eye (the 'anterior segment') especially the cornea.