Optical: systems and elements – Protection from moisture or foreign particle – Humidity or temperature control
Reexamination Certificate
2006-02-21
2006-02-21
Juba, Jr., John (Department: 2872)
Optical: systems and elements
Protection from moisture or foreign particle
Humidity or temperature control
C359S507000, C359S900000, C219S210000
Reexamination Certificate
active
07001028
ABSTRACT:
A method and an apparatus are provided for preventing formation of dew and/or ice on an optical glass window, with which formation of dew and/or ice is easily and simply prevented while an air turbulent disturbance is minimized and a deformation is inhibited as little as possible. A protective tube (6) covering an external atmosphere of a cooled optical glass window (2) and thermally insulated from the optical glass window (2) is provided so as to prevent the external atmosphere from being cooled in order to prevent the optical glass window (2) from having dew and/or ice formed thereon.
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Japan Science and Technology Agency
Jr. John Juba
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