G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/225 (2006.01) G02B 6/35 (2006.01) G02F 1/01 (2006.01)
Patent
CA 2056563
Abstract of the Disclosure A pair of fiber optic cables (12, 14) are connected at one end to a single light emitting diode (10). The second ends of the cables (12, 14) are connected to a first end of a polarized polyvinylidene fluoride film member (16), in a symmetrical relationship on opposite sides of a longitudinal centerline. The second end of the film member (16) includes a triangular recess formed by intersecting 45° edges (82, 84). A beam splitter (18) is positioned in the recess, with opposite end portions, one positioned to receive a beam of light from cable (12) and the other positioned to receive a beam of light from cable (14). The beam splitter redirects the two beams towards each other and towards a diagonal split (72) at the center of the beam splitter (18). A change in length of the film member (16) on one side of the longitudinal centerline will change the phase relationship of the two light beams where they meet at the split (72). A fiber optic cable (20) is connected to the beam splitter (18). The two light beams either cancel each other out or combine to produce a stronger light beam. Whichever condition occurs is received by the cable (20) and transmitted to a light analyzer (22).
Bodyscan Medical Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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