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US 11,307,091 B2Granted
Apertureless spectrometer
AssigneeAnsweray Inc.
InventorsSeong Ho Cho, Gajendra Pratap Singh
Life of this patent
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Abstract
A hard-apertureless spectrometer includes a housing, a collimator configured to collimate light provided from a soft-aperture of a target, a diffraction grating configured to spectroscopically analyze the collimated light, a condenser configured to condense the spectroscopically analyzed light, and a photodetector configured to receive the condensed light output from the condenser and detect a target characteristic.
Claims15
A hard-apertureless spectrometer comprising:
- a light source configured to provide excitation light to a target to form a focal point on the target such that a soft-aperture which is a virtual aperture corresponding to the focal point of the target is formed on the target;
- a spatial filter located on an optical path through which the excitation light reaches the target from the light source;
- a housing including a hole through which light provided from the soft-aperture on the target enters;
- a collimator configured to collimate the light provided from the soft-aperture of the target;
- a diffraction grating configured to spectroscopically analyze the collimated light;
- a condenser configured to condense the spectroscopically analyzed light;
- and
- a photodetector configured to receive the condensed light output from the condenser and detect a target characteristic;
- wherein a size of the soft-aperture is determined by a size of the focal point of the excitation light, and a shape of the soft-aperture is determined by the spatial filter.
6 more elements
A hard-apertureless Raman spectrometer comprising:
- a light source configured to provide excitation light to a target to form a focal point on the target such that a soft-aperture which is a virtual aperture corresponding to the focal point of the target is formed on the target;
- a spatial filter located on an optical path through which the excitation light reaches the target from the light source;
- a housing including a hole through which light provided from the soft-aperture on the target enters;
- a collimator configured to collimate Raman light formed by providing the excitation light to the soft-aperture of the target;
- a diffraction grating configured to spectroscopically analyze the Raman light;
- a condenser configured to condense the spectroscopically analyzed Raman light;
- and
- a photodetector configured to receive the condensed light output from the condenser and detect a target characteristic,
- wherein a size of the soft-aperture is determined by a size of the focal point of the excitation light, and a shape of the soft-aperture is determined by the spatial filter.
6 more elements
Dependencies are inferred from the claim text.