Research/Patents/US 4772121
US 4772121

MOVEMENT AND FOCUS CONTROL SYSTEM FOR A HIGH-ENERGY LASER

Assignee

CHARLES STARK DRAPER LABORATORY, INC., THE, 55 TECHNOLOGY SQUARE, CAMBRIDGE, MA. 02139, A CORP. OF MA.

Filed

Oct 28, 1985

Granted

Sep 20, 1988

Location

WINCHESTER MA US

Abstract

An alignment laser and cooperative optics are operable to produce sensor images of the cavity mirrors of a high-energy laser system. Means are disclosed responsive to the centroids of the sensor images for providing real-time closed-loop pointing direction control. Means are disclosed responsive to the size of the sensor images for providing real-time closed-loop focus control. A lens system cooperative with the alignment laser and the cavity mirrors is disclosed for establishing and maintaining the alignment laser in a collimated state when illuminating the sensor. In the preferred embodiment, the cavity mirrors are configured as a confocal unstable laser resonator.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 19, 1986

Rescinded

Mar 24, 1988

Duration

2 years

Inventor

  • 1MILTON B. TRAGESER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records