Oroheliograph

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Oroheliograph \Or`o*he"li*o*graph\, n. [Gr. 'o`ros mountain +
     helio- + -graph.] (Photog.)
     A camera for obtaining a circular panoramic view of the
     horizon. The photographic plate is placed horizontally with a
     vertical lens above. A mirror of peculiar shape reflects
     light from the entire horizon to the lens, by means of which


     it is focused upon the plate.
     [Webster 1913 Suppl.]