Patent ID: 7898660
Filing Date: 2011-03-01
Classification: G01J

Abstract:
1. A monolithic imaging spectrometer comprising: a body comprising a mass of substantially optically transmissive material; a slit disposed on said mass of substantially optically transmissive material; a first concave reflector, said first reflector and said slit defining a first optical path therebetween, such that the first optical path comprises said substantially optically transmissive material; a curved reflective grating, said first reflector and said curved reflective grating defining a second optical path therebetween, said first reflector and said reflective grating disposed with respect to said body such that said second optical path substantially comprises said substantially transmissive material; and a second concave reflector disposed such that light diffracted from said curved reflective grating is reflected from said second reflector onto an imaging detector array; wherein the slit, the first reflector, the second reflector and the curved reflective grating are integrated with the body in a monolithic assembly, wherein the first reflector is disposed on a first convex portion of said body, wherein the second reflector is disposed on a second convex portion of said body, and wherein the reflective grating is convex and is disposed on a concave portion of said body.