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US 6,388,710 B1Granted
Solid state camera with separate vacuum and sieve chambers
AssigneePhotometrics, Ltd.
InventorsMark S. McKune, Stephen L. Marcus, Derek Paul Guenther
Life of this patent
Estimating the term…
Abstract
A small, low cost, solid state camera is achieved by the placement of the requisite molecular sieve in a chamber separate from the vacuum chamber which houses the solid state device (CCD). The sieve chamber is connected by a narrow tube to the vacuum chamber and functions as a passive pump. The sieve chamber has a removable cover which permits replacement of the sieve after manufacture.
Claims12
A solid state camera, comprising:
- a detector chamber having an optical window therein;
- a solid state device positioned in said detector chamber in a position to capture a light image incident thereto through said optical window;
- a sieve chamber for housing a molecular sieve;
- and
- a wall separating said detector chamber and said sieve chamber and having a small diameter hole therethrough, wherein moisture is removed from said detector chamber through said hole.
2 more elements
A solid state camera, comprising:
- a detector chamber including a printed circuit board and a solid state sensor, and having an optical window therein for passing an image to said solid state sensor, said detector chamber maintaining a vacuum therein;
- and
- a sieve chamber connected to said detector chamber via a tube and acting as a passive pump, wherein moisture is removed from said detector chamber through said tube.
Dependencies are inferred from the claim text.