Two optical Sun filters

Made:
1824-1844 in England
maker:
Unknown

Two sun filters, one dark green glass, the other smoked glass, in rectangular slide mounts for use on a telescope. Both glass filters are either cracked or blistered due to the effects of their use on the sun. Inscriptions indicated that they were used at the Royal Observatory, Greenwich and the observatory of Captain W.H. Smyth RN, at Bedford, England. It is likely that they were originally in the possession of Smyth due to his association with the United Services Institution.

Related people

Details

Category:
Optics
Object Number:
1918-267
type:
solar filter
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • optical instrument
  • optical instrument component
  • optical filter
  • solar filter
  • furnishing and equipment
  • tools & equipment
  • optical instrument
  • optical instrument component
  • optical filter
credit:
Trustees of the Lee Settled Estates per Mrs. P.D. Lee
status:
Permanent collection

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