×

Fabri-perot spectroscopy method and apparatus utilizing the same

  • US 4,850,709 A
  • Filed: 02/27/1987
  • Issued: 07/25/1989
  • Est. Priority Date: 03/04/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. A Fabri-Perot spectroscopy method comprising the steps of:

  • causing a light beam to enter between two transparent plates at a first refraction angle for spectroscopically analyzing the light beam;

    causing the analyzed light beam in said first step again to enter between said two transparent plates at a second refraction angle for further spectroscopically analyzing the light beam; and

    causing the analyzed light beam in said second step still again to enter between said two transparent plates at a third refraction angle for still further spectroscopically analyzing the light beam, wherein one of the first, second and third refraction angles is different than another refraction angle.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×