Use of fresnel zone plates for material processing

Details Use of fresnel zone plates for material processing Use of fresnel zone plates for material processing

1994-01-03

1997-05-27

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 9, 359565, 21912168, G02B 532, G02B 2744, G03H 108, B23K 2600

Patent

active

056337353

ABSTRACT:
Optical machining of a workpiece with coherent light scanning a plate with a plurality of subaperture subapertures is disclosed. Each of the subapertures creates a working image which when scanned with a coherent wave front of the design frequency forms in three dimensional space the working image. The working image when registered to a workpiece effect processing of the workpiece, usually ablating an aperture such as a blind via of small dimension. Improved techniques of dimensioning and fabricating the subaperture, creating amplitude modulation with the phase plate, and finally controlling amplitude with optical features close to the limit of producible optical elements is disclosed. The apparatus for the process, the process and the plate for utilization in the process are set forth.

REFERENCES:
patent: 3957353 (1976-05-01), Fienup et al.
patent: 4897325 (1990-01-01), Akkapeddi et al.
patent: 4909818 (1990-03-01), Jones
patent: 5218423 (1993-06-01), Kishner
patent: 5227915 (1993-07-01), Grossinger et al.
patent: 5367400 (1994-11-01), Harris et al.
patent: 5393634 (1995-02-01), Maker et al.
patent: 5438441 (1995-08-01), Rocksroh et al.
Swanson, G.J., (1989) "Binary Optics Technology: The Theory and Design of Multi-level Diffractive Optical Elements", Technical Report 854:1-47.

Affiliated with

Also associated with

Rating

Use of fresnel zone plates for material processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of fresnel zone plates for material processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of fresnel zone plates for material processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2332954