INTERFEROMETER FOR DETECTING AND ANALYZING COHERENT RADIATION
Assignee
VERIDIAN ENGINEERING, INC., A CORP. OF OHIO
Filed
Nov 7, 1983
Granted
Aug 29, 2000
Location
KETTERING OH US
Abstract
Incoming optical radiation is divided into two focused beams with a relatively large amount of delay and shift introduced between the beams. Through the focusing of each of the beams to a different focal point (F1), (F2) a lead is created such that a circular or bull's-eye fringe pattern (60) is formed in a plane of observation (45). The position of the fringe pattern with respect to the output optical axis of the device is a function of the angle (θ) of the incoming coherent radiation with respect to the input optical axis of the device. The spacing of the fringe rings is a function of the frequency of the coherent radiation and the intensity of the fringe pattern is a function of the intensity and coherency of the beam of coherent radiation. The interferometer of the invention has a wide angle of reception and no moving parts.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 27, 1984
Rescinded
Aug 10, 1999
Duration
15 years, 4 months
Inventor
- 1PAUL T. BALLARD
Record Details
- Patent number
- US 6111644
- Application
- 06549645
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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