Abstract:
In an optical fiber scanning apparatus, an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion where a magnetic field generation unit is disposed of a frame body, the frame body for which a cross section of the hollow portion is a square includes a first frame body for which planar coils are disposed respectively on a first surface and a second surface that are orthogonal to each other, and a second frame body for which planar coils are disposed respectively on a third surface and a fourth surface that are orthogonal to each other, and which is bonded with the first frame body, and the first surface to the fourth surface configure inner surfaces of the hollow portion.
Abstract:
Provided is an imaging optical system including: a plurality of imaging lenses that form a final image and at least one intermediate image; a first phase modulation element that is disposed closer to an object than any of the at least one intermediate image is and that gives a spatial disturbance to the wavefront of light from the object; and a second phase modulation element that is disposed at a position so as to sandwich the at least one intermediate image with the first phase modulation element and that cancels out the spatial disturbance given to the wavefront of the light from the object by the first phase modulation element. The imaging lenses are configured so as to satisfy Herschel's condition.
Abstract:
Provided is an image-forming optical system including: a plurality of image-forming lenses that form a final image and at least one intermediate image; and a wavefront disturbing device and a wavefront restoring device that are disposed at positions having any of the intermediate images formed by the plurality of image-forming lenses therebetween and that apply phase modulation to the wavefront of light coming from an object. The wavefront disturbing device and the wavefront restoring device have the same phase distribution including a wave-shaped phase-advancing region and phase-delaying region that are symmetrical to each other, and are paired such that light passes through the corresponding phase-advancing region and phase-delaying region having opposite wave shapes.
Abstract:
Provided is a microscope apparatus including: a light source; an illumination optical system that radiates illumination light from the light source onto an observation object; an imaging optical system that focuses light from the observation object; and an image acquisition device that acquires an image of the light focused by the imaging optical system. The imaging optical system is provided with: imaging lenses that form a final image and at least one intermediate image; a first phase modulation element that is disposed closer to an object than any of the at least one intermediate image and that gives a spatial disturbance to the wavefront of light from the object; a second phase modulation element that is disposed at a position for allowing the at least one intermediate image to be sandwiched with the first phase modulation element and that cancels out the spatial disturbance given to the wavefront.
Abstract:
Provided is an image-forming optical system including: image-forming lenses that form a final image and an intermediate image; a wavefront-disturbing element that is placed towards an object from the intermediate image formed by the image-forming lenses and that imparts phase modulation causing a spatial disturbance to the wavefront of light from the object; and a wavefront-restoring element that is placed at a position, between the position and the wavefront-disturbing element being the intermediate image, and that imparts, to the wavefront of the light that has formed the intermediate image, phase modulation canceling out the spatial disturbance imparted by the wavefront-disturbing element, wherein the wavefront-disturbing element and the wavefront-restoring element include optical media and optical media having different refractive indices, and the phase modulation can be imparted by means of the shapes of the interfaces of the optical media and the optical media.
Abstract:
An optical-axis-direction scanning microscope apparatus includes: a light source; an illumination optical system for irradiating an examination object with illumination light from the light source; an image-forming optical system for collecting light from the examination object; and an image-capturing element (photodetector) that captures the light which is collected to acquire an image. Provided are: a plurality of image-forming lenses for forming a final image and at least one intermediate image; a first phase modulation element that is placed towards an object from one of the intermediate images and that imparts a spatial disturbance to the wavefront of the light from the object; and a second phase modulation element that is placed at a position, between that position and the first phase modulation element being at least one intermediate image, and that cancels out the spatial disturbance which is imparted to the wavefront of the light from the object.
Abstract:
Provided is an image-forming optical system comprising: a plurality of image-forming lenses that form a final image and at least one intermediate image; a first phase modulator that is disposed further on an object side than any one of the intermediate images formed by the image-forming lenses is and that applies a spatial disturbance to a wavefront of light coming from the object; a second phase modulator that is disposed at a position at which at least one of the intermediate images is flanked by the first phase modulator and the second phase modulator, and that cancels out the spatial disturbance applied, by the first phase modulator, to the wavefront of the light coming from the object; and an adjusting part for adjusting an optical magnification in an image-forming relationship between the first and second phase modulators is included.
Abstract:
The imaging optical system is for acquiring a clear final image, even if an intermediate image is formed at a position that overlaps with an optical device, by preventing scratches or the like of the optical device from becoming superimposed on the intermediate image, and has imaging lenses that form a final image and at least one intermediate image, a first phase-modulating element that imparts a spatial disturbance to a wavefront of light from an object, and a second phase-modulating element disposed at a position so that at least one intermediate image is interposed between the element and the element and that cancels the spatial disturbance, wherein the element has cylindrical lenses arranged with a space therebetween, and arranged so that a principal point of the whole system is positioned in a vicinity of a pupil position of the imaging lenses.
Abstract:
In order to prevent a flaw or the like on an optical element from overlapping an intermediate image, an observation apparatus includes: a light source; an illumination optical system; an image-forming optical system for focusing light from an observation subject; and an image-capturing element (photo-detector) for acquiring an image, wherein the image-forming optical system includes: a plurality of image-forming lenses for forming a final image and one or more intermediate images; a first phase modulator placed at the observation subject side relative to one of the intermediate images and that imparts a spatial disturbance; and a second phase modulator that is placed at a position so that one or more intermediate images is located between the position and the first phase modulator, and that cancels the spatial disturbance, and the image-forming optical system has an property for maintaining conjugacy in image formation relationship between the first and second phase modulators.
Abstract:
Acquiring a sharp final image by preventing, even when an intermediate image is formed at a position overlapping an optical element, a flaw or the like on the optical element from being superimposed on the intermediate image. An observation apparatus including: an image-forming optical system having image-forming lenses that form a final image and an intermediate image, a first phase modulator that applies a spatial disturbance to the wavefront of light, and a second phase modulator that cancels out the spatial disturbance; a light source; an XY-scanning part including a first and a second scanner; and a photodetector. The two phase modulators are disposed at positions optically conjugate with the first scanner and have one-dimensional phase-distribution characteristics changing in the scanning direction of the illumination light.