Accession Number:

ADA954479

Title:

Biological Applications and Effects of Optical Masers

Descriptive Note:

Annual progress rept.

Corporate Author:

MEDICAL COLL OF VIRGINIA RICHMOND

Personal Author(s):

Report Date:

1963-12-31

Pagination or Media Count:

5.0

Abstract:

The construction of an optical system to produce images of known size on the retina has been completed. The optical system is mounted as a unit upon a pedestal with provisions for the installation of different types of laser heads employing both ruby and Nd.-glass lasers. Power density control is achieved by means of neutral filters interposed in the beam after divergence through a negative lens. The angle of divergence entering the eye and hence the image size on the rabbit retina is continuously variable from 6 deg 1 mm. diam. to less than 1 deg 0.1 mm. diam.. A specially constructed ophthalmoscope attached to the optical system provides a magnification of 14 and allows the ophthalmologist to remain fixed on the exposure site, thus eliminating the difficulty of having to hunt for very small lesions after radiant exposure. It is expected that this system will make it possible to observe lesions less than 100 microns in diameter.

Subject Categories:

  • Anatomy and Physiology
  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE