Accession No

3790

Brief Description

spectroscopic accessory by Pellin, c.1890

Origin

France

Maker

Pellin. F.

Class

optical

Earliest Date

1890

Latest Date

1890

Inscription Date

Material

metal; brass; iron; glass

Dimensions

minimum height 405mm

Special Collection

Provenance

Purchased from Peter Delehar, London, England, 1990.

Inscription

Ph. F. Pellin
Paris (on top tube)

Description Notes

Optical apparatus devised by J.A. D’Arsonval (1851 - 1940) to enable a spectroscope to examine two sources. Lacquered brass telescopic stand with knurled tightening ring on iron trip base. Instrument is made of oxidised and lacquered brass. Spectroscope tube with slit receives light, via two horizontal tubes, from two prisms. Relative light from these is adjustable using dial (divided 0 - 80 in both directions, numbered by 10, graduated to 1) with knurled knob. Movable mirror is attached to the spectroscope end.

Condition fine; complete.

References

Events