# US 4,395,775 A · Optical devices utilizing multicapillary arrays

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- Number: US 4,395,775 A
- Document ID: US4395775A
- Status: Granted
- Kind: A
- Application number: 06/168,700
- Filed: 1980-07-14
- Granted: 1983-07-26
- Earliest claimed: 1980-07-14
- Inventors: James R. Roberts; Thomas J. McIlrath; Thomas B. Lucatorto
- Web page: https://patentgrep.com/patent/US4395775A

## CPC

- G02B 5/00: Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00)
- G02B 26/02: for controlling the intensity of light {(G02B26/004 takes precedence)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

Optical devices utilizing multicapillary arrays such as beam splitters, calibrated beam attenuators, collimators, beam steering devices, beam modulators and phase shifters and lens.

## Claims

### Claim 1

An optical device for splitting an incoming beam of radiation comprising a two-dimensional multicapillary array including a plate having a plurality of pores extending therethrough parallel to the incoming beam where said pores comprise an open area of the plate which transmits a portion of the incoming beam and the remaining area of said plate surrounding said pores comprises a closed area which is provided with a planar coating which reflects the remaining portion of the incoming beam where the normal to said closed area is disposed at an angle with respect to the incoming beam.

### Claim 2 (depends on 1)

A device as in claim 1 where the power density of said output radiation is equal to or greater than approximately 300.times.10.sup.6 watts/cm.sup.2.

### Claim 3 (depends on 1)

A device as in claim 1 where the wavelength of the radiation is less than 2000 A.

### Claim 4 (depends on 3)

A device as in claim 3 where the wavelength of the radiation is less than 1050 A.