To provide a cryostat capable of effectively preventing dew condensation on the surface of a cell.
The cryostat includes: a casing 1 where incidence and emission openings are formed; a cell storage chamber provided in the casing; a temperature control means for controlling cell temperature; a first optical path pipe 11 for guiding light entering from the incidence opening of the casing to the cell storage chamber; a second optical path pipe 12 for guiding light through the cell storage chamber to the emission opening of the casing; first and second optical windows 15, 18 disposed in openings exposed to the outside, respectively, in the first and second optical path pipes; and a sealing material 19 that is disposed at the periphery of the first and second optical windows, seals the first and second optical path pipes, and has a vapor permeability of 30,000 cc cm2 mm sec cm Hg1010 or less.
OKAMOTO KIDO
WADA TAKEHIKO
NAKAGAWA TATSUO
UNISOKU CO LTD
| JP2002071551A | 2002-03-08 | |||
| JP2002310907A | 2002-10-23 | |||
| JPS63305221A | 1988-12-13 | |||
| JPH08166331A | 1996-06-25 | |||
| JPH0653961U | 1994-07-22 | |||
| JPH1123431A | 1999-01-29 |