G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 26/08 (2006.01) G02B 6/35 (2006.01) G02B 26/02 (2006.01)
Patent
CA 2221200
A binary 1xn optical deflection switch has one input port, n two state switchable devices and 2n output ports. A switching mechanism is provided wherein a path length between two adjacent reflective surfaces can be varied by effectively moving a reflective surface. This is achieved by providing a first air glass interface (reflection means) where total internal reflection will occur, and having the capability of selectively providing a second glass block coupled to the first air glass interface to provide a new distant air glass interface at a distance from the first one equivalent to the thickness of the second glass block. When the second air glass interface is provided, the first air glass interface no longer exists and incident light follows a second path. When the second glass block is lifted off, the first air glass interface is once again present and a beam of light then follows a first path, reflecting off of the first air glass interface. Therefore by effectively moving the refection means, a beam of light is steered along different paths to selected output ports.
Keyworth Barrie
Macdonald Robert I.
Jds Fitel Inc.
Teitelbaum Neil
LandOfFree
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