Optical: systems and elements – Compound lens system – Telescope
Patent
1998-05-08
2000-06-27
Spyrou, Cassandra
Optical: systems and elements
Compound lens system
Telescope
359387, 385146, G02B 2300
Patent
active
060813733
ABSTRACT:
A light transmitting device for use in a viewing apparatus or optical device, particularly a night vision device. The device is composed of a material which is capable of transmitting light from a remote source. Light from a visible indicator such as an LED is transferred through at least one outer flat to an inner flat of the device. The inner flat provides a signal to the user that the power supply is low. An additional outer flat and inner flat provides a signal to the user that the infrared illuminator is in operation. A projection formed along the outer periphery of the device prevents rotation and aids in assembling the device in a viewing apparatus. With the light transmitting device, there is no need for a separate device attached to the housing of an optical device for indicating power supply. The device also avoids the presence of overlapping light signals in the user's eyes, by transferring separate channels of light from locations outside the field-of-view to specific locations inside the field-of-view of an optical device.
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Bowen James Hoge
Bryant Mark Alan
Schweitzer Paul Thomas
Whiddon Roger Douglas
ITT Manufacturing Enterprises Inc.
Robinson Mark A.
Spyrou Cassandra
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