plate holder for Hilger wavelength spectrometer
Date: 1924-1928
Inventory Number: 2005-1-0019
Classification: Spectrograph Plates
Subject:
Maker: Adam Hilger Ltd. (1874 - 1948)
Cultural Region:
Place of Origin:
Dimensions:
18.3 × 2 × 22.6 cm (7 3/16 × 13/16 × 8 7/8 in.)
Bibliography:
A General Catalogue of the Manufactures of Adam Hilger, Ltd. Containing Sections D, E, F, H, K, L, M, and N
Description:
This is a photographic plate holder that goes with the Hilger camera model D10, which itself can be attached to a Hilger wavelength spectrometer (in this case, the D1/4 model). The plate holder is made of polished wood. It is equipped with rack and pinion to move the photographic plate up and down. A scale in millimeters (0-100) is placed on one side. The rectangular hole is to let the spectral light formed by the spectrometer pass through.
Comment: The D10 camera had a 21-inch focus lens, tilting adjustment for accurately focussing the whole spectrum, and shutter for exposure (not here). (taken from 1928 trade catalogue) Original price: 13 pounds 15 shillings (May 1932)
Comment: The D10 camera had a 21-inch focus lens, tilting adjustment for accurately focussing the whole spectrum, and shutter for exposure (not here). (taken from 1928 trade catalogue) Original price: 13 pounds 15 shillings (May 1932)
Signedon plate holder: ADAM HILGER Ltd / LONDON, ENGLAND.
Inscribedon white sticker, hand-written: Plate Holder for HILGER / wavelength spectrometer / D 1/4 / constant deviation type
under signature, engraved: No D.10.301/21233
under signature, engraved: No D.10.301/21233
Primary SourcesAdam Hilger, A General Catalogue of the Manufactures of Adam Hilger (London, 1928).