Optical attenuator movement detection system
First Claim
1. An optical detection system comprising:
- light emitting means positioned in a first conduit so as to emit light into said first conduit,light detecting means positioned in said first conduit adapted to receive light emitted into said first conduit by said light emitting means,wherein the relative longitudinal distance that said light emitted into said first conduit travels between said light emitting means and said light detecting means is varied within said conduit in proportion to a variable to be detected.
0 Assignments
0 Petitions
Accused Products
Abstract
An optical attenuation measurement system is provided for obtaining signals proportional to movement of a system to which it is attached. The measurement system includes a light source positioned within a length of conduit in which the light emitted will produce multiple reflections. A fiber optic cable is slidably disposed within the conduit to transmit the radiation emitted from the light source gathered thereby. The relative displacement of the fiber optic cable to the light source produces a signal as a function of this displacement which is converted into electrical signals by a light detecting element at the opposite end of the cable. The system is particularly useful to form an interactive device for control of a remote intelligent machine, robot or the like. For example, the system may be used on an operator'"'"'s hand to detect movement of the hand and fingers for controlling a robotic hand which will mimic the operator'"'"'s hand movements.
-
Citations
22 Claims
-
1. An optical detection system comprising:
-
light emitting means positioned in a first conduit so as to emit light into said first conduit, light detecting means positioned in said first conduit adapted to receive light emitted into said first conduit by said light emitting means, wherein the relative longitudinal distance that said light emitted into said first conduit travels between said light emitting means and said light detecting means is varied within said conduit in proportion to a variable to be detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 22)
-
-
17. An optical detection system comprising:
-
a light emitting means, a first conduit in which said light emitting means is positioned to emit light therein, a second conduit adapted to be slidably received in said first conduit, a light transmission means positioned in said second conduit so as to have a first end slidably positioned in said first conduit to receive light emitted by said light emitting means, a light detecting means relative to a second end of said light transmission means to receive light propagated through said light transmission means, wherein said second conduit has a minimum length to accommodate all slidable motion of said light transmission means within said first conduit so as to form a rigid system wherein the relative distance between said light emitting means and said first end of said light transmission means varies to yield an indication of a variable to be detected.
-
-
18. An optical detection system comprising:
-
a light emitting means positioned in a first conduit so as to emit light into said first conduit, at least one light transmission means having first and second ends wherein at least said first end is positioned within said first conduit to receive light emitted by said light emitting means, at least one light detecting means positioned relative to said second end of said at least one light transmission means adapted to receive light propagated through said light transmission means, wherein the relative distance between said light emitting means and said first end of said light transmission means varies to yield an indication of the variable to be detected. - View Dependent Claims (19, 20, 21)
-
Specification