Abney type colour photometer with rotating sector apparatus by Adam Hilger

Made:: 1888 in London

maker:: Adam Hilger

Abney type colour photometer with rotating sector apparatus by Adam Hilger, London, 1888. commercial version of photometer used by Sir William de Wiveleslie Abney and Major-General E. R. Festing in their researches.

Details

Category:: Optics

Object Number:: 1888-176

type:: photometer

credit:: Hilger, Adam

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Parts

Abney's colour photometer with rotating sector apparatus, telescope with adjustable slit, focusing screen and lens, two pillars for prisms, by Adam Hilger, London, 1888 [Mounted on a new base in 1986 for display in the Optics Gallery.]

Abney's colour photometer with rotating sector apparatus

Measurements:: focusing screen with lens: 310 mm x 450 mm x 340 mm, , 5.685kg
rotating sector: 255 mm x 365 mm x 410 mm, , 11.455kg
pillar with prism: 270 mm x 80 mm x 100 mm, , 1.005kg
telescope with slit: 280 mm x 300 mm x 140 mm, , 2.52kg