Spectral imaging system with dynamic optical correction

A method, comprising:

• selecting a wavelength band for an image from among two or more different wavelength bands within an overall wavelength range;
• adjusting a position of an optical element having optical power in a system of relay optics in response to the selection of the wavelength band, wherein the adjustment to the position of the optical element varies depending on which of the different wavelength bands is selected;
• and
• receiving an image from image-forming optics, and relaying the image to an imaging detector using the relay optics.

A multispectral detection system for use with image-forming optics configured to form an image of a sample along an optical path, the detection system comprising:

• an imaging detector;
• relay optics comprising multiple optical elements, the relay optics positioned to relay the image formed by the image-forming optics to the imaging detector;
• an actuator coupled to one of the optical elements in the relay optics and configured to adjust a position of the coupled optical element;
• and
• control electronics configured to cause the actuator to adjust the position of the coupled optical element in the relay optics in response to a wavelength band selection by a wavelength selection element positioned in the optical path to select one wavelength band for the image from among two or more different wavelength bands within an overall wavelength range,
• wherein the adjustment to the position of the coupled optical element varies depending on which of the different wavelength bands is selected by the wavelength selection element.

A method, comprising:

• selecting a wavelength band for an image from among two or more different wavelength bands within an overall wavelength range;
• adjusting a position of an optical element in a system of relay optics in response to the selection of the wavelength band by a wavelength selection element positioned in an optical path, wherein the adjustment to the position of the optical element varies depending on which of the different wavelength bands is selected;
• and
• receiving an image along the optical path from image-forming optics, and relaying the image to an imaging detector using the relay optics.