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US 6,633,432 B2Granted
Optical device and a microscope
AssigneeOlympus Optical Co., Ltd.
InventorYoshinori Iketaki
Life of this patent
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AssigneeOlympus Optical Co., Ltd.
InventorYoshinori Iketaki
Estimating the term…
An optical device and microscope of simple construction are provided that are capable of readily attaining super resolution with good focusing performance. This comprises a light source means (2, 3, 4, 6, 8) that generates light of multiple different wavelengths, a light condensation means to focus lights of these multiple wavelengths on an object 1, and an emitted light detector means 17 for detection of light emitted from said object 1. Among said multiple lights of different wavelengths generated from said light source means, at least one light forms a condensed light pattern of multiple spatial modes. These multiple lights are condensed upon said object 1 such that part of the region of the condensed light pattern of said multiple spatial modes is made to spatially overlap with the condensed light pattern of the other light.
A microscope for observation of a sample that is dyed by a molecule having at least three electron states including a ground state and characterized as having a first light source for generation of a first light of a wavelength λ1 which causes a transition of said molecule from the ground state to a first excited state, a second light source for generation of second light of a wavelength λ2 which causes a transition of said molecule from a first excited state to a second excited state of higher energy level, a condensed light optical system for focusing of said first light and second light upon said sample, and an emitted light detector for detection of light emitted from said molecule;
Dependencies are inferred from the claim text.