Direct Vision Spectroscope [Produces Super Clear Spectra] – c1890-1910

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Direct Vision Spectroscope [Produces Super Clear Spectra] – c1890-1910

Short Description

A fine example of a direct vision spectroscope no makers mark but likely manufactured by John Browning of London. Browning was the top London maker of spectroscopes in the late 19th early 20th Century and, was the leader in spectroscope development.

Victorian or Edwardian in manufacture. Works very well and produces sublime spectra. Contains a train of five alternating crown and flint glass prisms in order to correct for chromatic aberration. Brass body unmarked and with a complete covering of the original gold lacquer. Plush lined case has some rubbing; the clasp still holds firm.

This design is also known as the "Rainband" spectroscope and was used by gentlemen scientists to detect the spectral bands that appear as water vapour builds prior to a shower of rain. This is the more sophisticated version with a knurled device for altering the slit width and a draw tube for fine focus. cap to protect the slit from dust is original and fits snugly.

Very good condition working spectroscope

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