05973315 is referenced by 73 patents and cites 13 patents.

A multi-function day/night observation, ranging, and sighting device with active acquisition of optical targets includes a single objective lens and a single eyepiece lens and provides an image of a scene. The single objective lens leads to a visible-light first optical path and to an invisible-light second optical path. The invisible-light second optical path includes an image intensifier tube providing a visible image. The first and second optical paths converge with visible images provided by each pathway being overlaid at a reticule plane. A single light path leads from the reticule plane to the eyepiece lens. A laser provides pulses of laser light projected into the scene via the single objective lens, and the image intensifier tube is used as a detector for a portion of the laser light pulses reflected from an object in the scene in order to provide both a laser range finding function and an active optical target acquisition mode. The device includes a light-emitting display visible through the eyepiece lens providing ranging information superimposed over the image of the scene as seen by a user of the device. Methods of the device's operation are also disclosed.

Title
Multi-functional day/night observation, ranging, and sighting device with active optical target acquisition and method of its operation
Application Number
9/25165
Publication Number
5973315
Application Date
February 18, 1998
Publication Date
October 26, 1999
Inventor
Jerry Dayton Porter
Dallas
TX, US
Michael Charles Epperson
Garland
TX, US
Michael R Saldana
New Braunfels
TX, US
Agent
Terry L Miller
Assignee
Litton Systems
CA, US
IPC
H01J 40/14
H01J 31/50
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