Wedge plate interferometry: a new dual field configuration for collimation testing

✍ Scribed by J.S. Darlin; M.P. Kothiyal; R.S. Sirohi

• Book ID: 104160307
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 276 KB
• Volume: 30
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/s0030-3992(98)00041-3

✦ Synopsis

A method of deriving a dual ®eld fringe pattern from a single wedge plate for collimation testing is presented. The proposed technique uses a wedge plate and a 908 prism retrore¯ector to form two interference ®elds. With the two sets of fringes, the technique provides twofold increase in sensitivity and has its own reference.