US 12,436,094 B2
Adjustable optical system for a spectrograph
Julian Irwin, Madison, WI (US); and Jeffrey Peter Wong, Middleton, WI (US)
Assigned to THERMO ELECTRON SCIENTIFIC INSTRUMENTS LLC, Madison, WI (US)
Filed by Thermo Electron Scientific Instruments LLC, Madison, WI (US)
Filed on Apr. 28, 2023, as Appl. No. 18/309,390.
Prior Publication US 2024/0361234 A1, Oct. 31, 2024
Int. Cl. G01N 21/31 (2006.01)
CPC G01N 21/31 (2013.01) [G01N 2201/0633 (2013.01); G01N 2201/0634 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A spectrograph comprising:
a base;
a first optic mounted with respect to the base;
a second optic pivotably mounted with respect to the base via a first adjustable mount, wherein a first relative position between the first optic and the second optic is adjustable about a first pivot axis, and the second optic is rotatable relative to the first pivot axis by rotating the first adjustable mount; and
a third optic mounted with respect to the base;
wherein a second relative position between the second optic and the third optic is adjustable about a second pivot axis independently from the adjustability of the first relative position between the first optic and the second optic, wherein the second pivot axis is substantially coincident with the first pivot axis, wherein a distance between the third optic and the second optic is fixed during adjustment of the second relative position,
wherein the second optic is independently movable, with respect to the first optic and the third optic, and wherein the second optic defines a central axis normal thereto, the second optic further supported by a third adjustable mount for rotating the second optic around the central axis.