Achromatic optical interferometer, of the trilateral shift type

Details Achromatic optical interferometer, of the trilateral shift type Achromatic optical interferometer, of the trilateral shift type

1994-11-16

1997-02-25

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356358, G01B 902

Patent

active

056064179

ABSTRACT:
A device for analyzing the wave surface of a light beam has an entry lens which defines a reference plane, optically conjugate with the plane in which the wave surface of the light beam is analysed. A bidimensional meshed lattice is placed in this reference plane, perpendicularly to the beam. The different sub-beams, due to the different orders of diffraction, are focused jointly by a first lens, in an intermediate focal plane, in the vicinity of which a mask selects, from the sub-beams, those which relate to at least three distinct orders of diffraction. A second lens takes the selected sub-beams to a nil-sensitivity plane, conjugate with the plane of the lattice. An interference image is observed in a working plane, situated at a chosen distance from the nil-sensitivity plane. The device can be characterized as an improved achromatic optical interferometer, of the trilateral shift type.

REFERENCES:
patent: 4413909 (1983-11-01), Pohle
patent: 4518854 (1985-05-01), Hutchin
patent: 4670646 (1987-06-01), Spivey
patent: 4707137 (1987-11-01), Lee
patent: 5159407 (1992-10-01), Chuanside
Jerome Primot, "Three-wave lateral shearing interferometer", Applied Optics, vol. 32. No. 31, Nov. 1, 1993, pp. 6242-6249.
Francois Roddier, "Variations on a Hartmann theme", Optical Engineering, vol. 29 No. 10, Oct. 1990, pp. 1239-1242.

Affiliated with

Also associated with

Rating

Achromatic optical interferometer, of the trilateral shift type does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Achromatic optical interferometer, of the trilateral shift type , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Achromatic optical interferometer, of the trilateral shift type will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1977919