Patent ID: 6811318
Filing Date: 2004-11-02
Classification: G02B

Abstract:
A shutter assembly into which an optical device is insertable, the shutter assembly configured to be moveable between a closed position, when the optical device is not inserted into the shutter assembly, and an open position, when the optical device is inserted into the shutter assembly, the shutter assembly comprising:a first flexible layer having a plurality of slits formed therein, wherein, when the shutter assembly is in the closed position, the first flexible layer is substantially planar, a longitudinal axis perpendicularly passes through the first flexible layer, and the first flexible layer's slits meet at a first location; a second flexible layer having a plurality of slits formed therein, wherein, when the shutter assembly is in the closed position, the second flexible layer is located adjacent to the first flexible layer, the second flexible layer is substantially planar, and the second flexible layer's slits meet at a second location, laterally spaced from the first location; a first coupling ring located adjacent to the first flexible layer; and a second coupling ring located adjacent to the second flexible layer; wherein both the first and second flexible layers are located between the first and second coupling rings, the first and second coupling rings support the first and second flexible layers with a scaled space located behind the first and second flexible layers, and both the first and second flexible layers form a seal with the optical device when the shutter assembly is in its open position.