Optic system for a down hole camera assembly

Details Optic system for a down hole camera assembly Optic system for a down hole camera assembly

G - Physics

02

B

G02B 9/04 (2006.01) E21B 47/00 (2006.01) E21B 47/01 (2006.01) G01N 33/24 (2006.01) G02B 23/24 (2006.01) H04N 5/225 (2006.01)

Patent

CA 2101748

2101748 9214034 PCTABS00014 An optic system is provided for a down hole camera. The system includes an elongated tubular housing constructed from thermal insulating material. A front lens group and rear lens group are mounted within the housing adjacent opposite ends. The front and rear lens groups are thermally isolated from one another through the provision of two spaced windows therebetween that extend across and seal a light pathway running through the tubular housing. Preferably, the windows are sealingly mounted within the housing so as to define a vacuum chamber therebetween within the wall of the housing.

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