The Golub Collection at The University of California, Berkeley
Collection donated by Orville J. Golub (Ph.D. '44) and Ellina Marx Golub (B.A. '39)
Collection donated by Orville J. Golub (Ph.D. '44) and Ellina Marx Golub (B.A. '39)
Results of Golub Collection search: Microscope No. 227
This is a microscope illuminating lamp typical of the early 19th Century. The lamp is supported on an articulating arm screwed to a heavy brass base. Two set screws allow the support arm to extend. A third set screw allows the lamp to be tilted.
The lamp consists of a central oil lamp and reservoir. At the top is the cloth wick and chimney. Flanking the lamp, at flame height, are a plano-convex condenser lens (dia=5.3cm, f=4.5cm), and a concave reflector (dia=5.8cm). The condenser lens is backed by a blue glass filter. The lamp base is 7.5cm tall, the chimney is 17cm tall.
It probably burned Sperm Whale Oil.
The lamp consists of a central oil lamp and reservoir. At the top is the cloth wick and chimney. Flanking the lamp, at flame height, are a plano-convex condenser lens (dia=5.3cm, f=4.5cm), and a concave reflector (dia=5.8cm). The condenser lens is backed by a blue glass filter. The lamp base is 7.5cm tall, the chimney is 17cm tall.
It probably burned Sperm Whale Oil.