Accession No

2995

Brief Description

spectrometer / spectrograph, by Adam Hilger, English, 1890

Origin

England; London

Maker

Adam Hilger

Class

optical

Earliest Date

1890

Latest Date

1890

Inscription Date

Material

metal (oxidised brass, alloy); glass

Dimensions

length 575mm; breadth 350mm; height 40mm 2nd part length 180mm; breadth 110mm; height 160mm parts length 210mm; breadth 195mm; height 130mm tripod stand height 341mm; breadth 210mm; depth 190mm box of prisms length 137mm; breadth 128mm; height 75mm

Special Collection

Cavendish collection

Provenance

On loan from Cavendish Laboratory, University of Cambridge, 1983. Probably part of Solomon.Sir David’s Bequest to the Cavendish Laboratory, 1929.

Inscription

‘A. HILGER LONDON’

Description Notes

Table spectroscope; painted oxidised brass; screw fit slit mount with metal alloy jaws; screw adjustment to slit width; push fit cover; fixed collimator; rack and pinion focus with mm scale; circular stage divided 0-360 to 30 with vernier to 1’; prism platform and separate prism mount (now with constant deviation prism) linked to telescope motion for minimum deviation; telescope, clamp and slow motion screw, vernier, micrometer, rack and pinion focus, mm scale, push fit micrometer eyepiece; internal scale moved by screw; drumhead divided 0-100 by 1, eyepiece itself moved by rack and pinion; scale divided 0-10 by 1; pillar and tripod stand, levelling screws, clamp and slow motion for stage, 2 alternative objectives; 6 prisms in mounts fitting objective ends of collimator and telescope; set of alternative eyepieces; push-fit camera; plate mount pivots about centre by rack and pinion; rack and pinion vertical adjustment separate pillar and tripod; stand; levelling screws to support collimator with camera.

References

Events