Patent ID: 8274653
Filing Date: 2012-09-25
Classification: G01J

Abstract:
1. A spectroscope comprising: a beam deflector for deflecting an incident light beam, the beam deflector comprising: spectroscopic means for dispersing the deflected light beam output by the beam deflector; and wavelength selection means for selecting light having an arbitrary wavelength from the light dispersed by the spectroscopic means; wherein the beam deflector outputs the incident light beam at a deflection angle relative to the optical axis of the incident light beam that varies between: wherein the beam deflector and the spectroscopic means are separated by a distance equivalent to a predetermined optical path length so that the deflected light beam output from the beam deflector is incident at different positions on the stereoscopic means at the first voltage applied state and the second voltage applied state; and wherein the wavelength selection means is positioned where the optical axis of the shortest wavelength light output from the spectroscopic means at the first voltage applied state intersects the optical axis of the longest wavelength light output from the spectroscopic means at the second voltage applied state.