11 pairs, 1 of which is incomplete
11 pairs, 1 of which is incomplete
Trial case
- maker:
- S Maw, Son & Sons
This image is released under a CC BY-NC-SA 4.0
Licence
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LicenseTrial case, wooden, containing 72 trial lenses and trial frame
Science Museum Group
The Board of Trustees of the Science Museum
Trial case, wooden, containing 72 trial lenses and trial frame, by S. Maw Son and Sons, 7-12 Aldersgate Street, London, England, 1901-1970.
Details
- Category:
- Ophthalmology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A606424
- Materials:
- case, wood, case, brass, case, silk, lined and plastic
- type:
- trial lenses
Parts
11 pairs, 1 of which is incomplete
11 pairs, 1 of which is incomplete
6 pairs of trial lenses
6 pairs of trial lenses
6 pairs, 1 of which is missing
6 pairs, 1 of which is missing
Prism, glass
Prism, glass, 38mm diameter
Blank disc
Blank disc, brass, 38mm diameter used to occlude one eye whilst other is tested
Stenopaic slit
Stenopaic slit, brass, 38mm diameter used for high astigmatism or irregular refraction
Pin-hole disc
Pin-hole disc, brass, 38mm diameter used in several tests, usually for investigating retina sensitivity
Tinted lens
Tinted lens, glass, 38mm diameter
