Spectral Image Acquiring Device And Spectral Image Acquiring Method
First Claim
1. A spectral image acquiring device comprising, an objective lens, a field aperture member for limiting a size of an image passing through said objective lens and focusing, a wavelength selecting member arranged on an optical axis of said objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of said wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through said wavelength selecting surface, an image pickup element arranged on the optical axis of said objective lens, and an image forming lens for focusing said partial luminous fluxes deflected by said deflecting member on said image pickup element for each of the partial luminous fluxes.
1 Assignment
0 Petitions
Accused Products
Abstract
A spectral image acquiring device comprises an objective lens, a field aperture member for limiting a size of an image passing through the objective lens and focusing, a wavelength selecting member arranged on an optical axis of the objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of the wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through the wavelength selecting surface, an image pickup element arranged on the optical axis of the objective lens, and an image forming lens for focusing the partial luminous fluxes deflected by the deflecting member on the image pickup element for each of the partial luminous fluxes.
-
Citations
14 Claims
- 1. A spectral image acquiring device comprising, an objective lens, a field aperture member for limiting a size of an image passing through said objective lens and focusing, a wavelength selecting member arranged on an optical axis of said objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of said wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through said wavelength selecting surface, an image pickup element arranged on the optical axis of said objective lens, and an image forming lens for focusing said partial luminous fluxes deflected by said deflecting member on said image pickup element for each of the partial luminous fluxes.
- 11. A spectral image acquiring method comprising, a step of dividing luminous fluxes into two or more partial luminous fluxes by two or more wavelength selecting surfaces having different wavelength characteristics, respectively, a step of deflecting each of said partial luminous fluxes passing through said wavelength selecting surfaces by a deflecting member, a step of condensing each of said partial luminous fluxes deflected by said deflecting member by using an image forming lens, and a step of forming an image of said partial luminous fluxes condensed by said image forming lens on an image pickup element and acquiring a frame image having a spectral image with two or more wavelengths.
Specification