Spectroscopic sampling accessory having dual measuring and viewing systems
First Claim
1. A microspectrometer accessory, comprising:
- a first set of identical symmetrical aberration canceling imaging mirror optics which map a first measuring area on a specimen plane which is to be spectroscopically analyzed with at least a first remote focus, the first measuring area having a size and shape, the specimen plane and the first remote focus being at conjugate foci, anda first mask positioned at the first remote focus, the first mask delimiting an area which substantially defines the size and shape of the first measuring area on the specimen plane.
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Accused Products
Abstract
A microscope accessory uses symmetrical pairs of identical parabolic mirrors as an imaging optic to map a specimen plane with a remote focus. A mask at the remote focus defines at least one measuring area for making spectroscopic measurements while a separate viewing system simultaneously provides a wide field of view of the sample at higher magnification. The sample aperture, defines as 2 sterradians of solid angle surrounding each side of the specimen plane, is multiplexed between and among different functions--such as spectroscopic measurements and visual observations. The high numerical aperture possible using identical symmetrical aberration canceling (ISAC) optics facilitates the aperture multiplexing which has particular advantage in making reflectance measurements without any need for a significant loss of throughput efficiency.
108 Citations
6 Claims
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1. A microspectrometer accessory, comprising:
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a first set of identical symmetrical aberration canceling imaging mirror optics which map a first measuring area on a specimen plane which is to be spectroscopically analyzed with at least a first remote focus, the first measuring area having a size and shape, the specimen plane and the first remote focus being at conjugate foci, and a first mask positioned at the first remote focus, the first mask delimiting an area which substantially defines the size and shape of the first measuring area on the specimen plane. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification