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US 10,436,643 B1Granted
Spectrometer and retainer used in same
AssigneeShimadzu Corporation
InventorMasaaki Kitawaki
Life of this patent
Estimating the term…
Abstract
A spectrometer includes a grating, a cylinder retainer and a housing. The grating comprises a grating surface having a concave toroidal form. The retainer comprises an end surface having a convex contact surface compatible with the grating surface, wherein the contact surface contacts with the grating surface. The housing includes an opening which the retainer fits in.
Claims5
A spectrometer, comprising:
- a housing having an incident slit permitting incident light therethrough into said housing;
- a grating that comprises a grating surface having a concave toroidal form;
- a cylinder retainer that comprises an end surface having a convex contact surface compatible with said grating surface;
- said grating surface having a central portion facing an inside of said housing through an interior of said cylinder retainer;
- a detector in said housing;
- wherein said convex contact surface is fixed to contact with said grating surface;
- said housing further comprises an opening in which said cylinder retainer fits;
- and
- said retainer being rotatably fitted within said opening in said housing.
6 more elements
A retainer, for a spectrometer, comprising:
- said retainer is fixed to a grating comprising a grating surface having a concave toroidal form and having a cylinder having an end surface having a convex contact surface that is compatible with a grating surface of the spectrometer at an end surface of the spectrometer said convex contact surface is fixed so as to contact with said grating surface, the spectrometer having a housing that is rotably coupled to the retainer, said convex contact surface comprises four contact surfaces formed at every 90° interval from a center of an axis-line of said cylinder, said grating surface having a toroidal form in which a curvature radius at a first axis and a curvature radius of a second axis orthogonal to the first axis differ from each other, a first two of said four contact surfaces on said first axis sandwich said axis-line and a second two of said four contact surfaces on the second axis sandwiching said axis-line.
A spectrometer, comprising:
- a grating that comprises a grating surface having a concave toroidal form;
- a cylinder retainer that comprises an end surface having a convex contact surface compatible with said grating surface;
- wherein said convex contact surface is fixed to contact with said grating surface;
- a housing that comprises an opening in which said retainer fits;
- said contact surface comprising four contact surfaces formed at every 90° interval from a center of an axis-line of said retainer;
- said grating surface has a toroidal form in which a curvature radius at a first axis and a curvature radius of a second axis orthogonal to the first axis differ from each other, and
- a first two of said four contact surfaces on said first axis sandwich said axis-line and a second two of said four contact surfaces on the second axis sandwich said axis-line.
4 more elements
Dependencies are inferred from the claim text.