Research Directed Toward the Development of an Improved Process for Optical Grating Ruling.
Abstract
Successful operation of two new types of interferometrically controlled ruling engines is described, each capable of ruling larger diffraction gratings than were previously available. One, of 12 x 18 inch capacity, was made by applying electronic translation and yaw control to a modified commercially available measuring machine. This has now ruled echelles up to 8 x 16 inches, which give resolution, speed, and freedom from false light not previously approached. The second, of 18 x 24 inch capacity, has successfully ruled gratings up to 12 x 15 inches, and is currently being refined to produce larger rulings of echelle quality. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1970
- Accession Number
- AD0872667
Entities
People
- George R. Harrison
Organizations
- Massachusetts Institute of Technology