摘要:
An observation apparatus of the present comprises (i) a light source for generating light; (ii) a separating optical system which splits the light from the light source into two different polarized light beams; (iii) a condenser optical system which converges the two polarized light beams from the separating optical system so as to respectively form light spots on two different positions on a sample object; (iv) a polarization selecting means which has a predetermined analyzer angle and selects a specific polarized light component from composite light made of the two polarized light beams by way of the sample object; (v) light detecting means which detects the polarized light component selected by the polarization selecting means; and (vi) phase difference adjustment means which adjusts a phase difference between the two polarized light beams by way of the sample object and guides composite light composed of the two polarized light beams as circularly polarized light to the polarization selecting means, when the sample object does not modulate both phase and amplitude of the light incident thereon. Accordingly, this observation apparatus can detect a phase difference generated between the two light components respectively emitted from both side of a level difference on the sample object.
摘要:
A minute step measuring method comprises forming a laser spot on an object by condensing light from a laser light source, condensing light beams from the object on an end face of a double-mode waveguide, branching light propagating in the double-mode waveguide into two channel waveguides, detecting light beams emerging from the two channel waveguides, and measuring a minute step existing on the object, using a signal of a difference and a signal of a sum between two signals according to the two light beams detected, wherein measurement is conducted of a signal W.sub.a of the sum when the laser spot is located on one of two flat portions existing before and after the step, and of a signal W.sub.b of the sum when the laser spot is located on the other flat portion, and wherein the step is measured by correcting a difference between reflectivities of the two flat portions existing before and after the step in measuring the minute step, using the signals W.sub.a and W.sub.b.
摘要:
This optical disk comprises neighboring land tracks and a groove track laid therebetween. Light modulating regions are formed in said land tracks and each of the light modulating regions extends in the groove track.
摘要:
A laser scanning microscope provided with a laser light source, an illuminating optical system for condensing the light from the laser light source to form a light spot on a specimen, a scanning device for causing relative movement of the light spot with respect to the specimen, a photodetector for measuring the amount of light transmitted or reflected by the specimen, and an optical system with positive refraction power for guiding the light beam, transmitted or reflected by the specimen, to the light-receiving plane of the photodetector, wherein the photodetector is composed of a two-dimensional image sensor provided in a position displaced from the conjugate point of the light spot by such an amount that the light beam forms a far-field diffraction pattern of the specimen on the light-receiving plane of the photodetector.
摘要:
A microscope apparatus can generate information of a super-resolved image at high speed. For that purpose, the microscope apparatus of the present invention is equipped with an image-forming optical system for forming an intermediate image of light emitted from a specimen, a relay optical system for forming an image of the intermediate image, an illuminating optical system that jointly owns an optical path of the image-forming optical system and illuminates the specimen through the optical path of the image-forming optical system, and a spatial modulator disposed on a formation plane of the intermediate image. In this microscope apparatus, the specimen is subjected to structured illumination by an image of the spatial modulator. Light from the specimen which is modulated by the structured illumination is automatically remodulated in the spatial modulator.
摘要:
There is provided an optical characteristic measuring method for measuring an optical characteristic of an optical system which forms, on a second plane, an image of an object arranged on a first plane, the optical characteristic measuring method including: arranging, on the first plane, a first area through which a measuring light passes or by which the measuring light is reflected; arranging a second area, through which the measuring light passes or by which the measuring light is reflected, on the second plane at a position corresponding to the first area; and detecting, via one of the first area and the second area, a light amount of the measuring light via the optical system and the other of the first area and the second area; wherein at least one of the first area and the second area has a shape such that a light amount, of the measuring light which passes or which is reflected via the optical system, is changed depending on the optical characteristic.
摘要:
An optical disc consisting of a substrate and at least a recording layer formed on the substrate is recycled by peeling off the recording layer from the substrate; and bonding another substrate having a recording layer formed thereon to the substrate from which the recording layer has been removed, whereby a renewed optical disc is provided.
摘要:
A linear/rotary actuator capable of carrying out both linear motion and rotary motion either individually or concurrently as desired while controlling both motions as desired. A rotary driving motor includes a hollow shaft. When the rotary driving motor rotates a third nut fitted on a spline section of the rotary driving motor, an output shaft rotatably fitted on a linear shaft through bearings is rotated. The linear shaft 21 is provided thereon with a threaded section. A spline section and a first nut is threadedly fitted on the threaded section and a second nut kept stationary is fitted on the spline section. The first nut is rotated while being fixed in a hollow shaft of a linear driving motor. Rotation of the linear driving motor leads to rotation of the first nut, resulting in the linear shaft 21 being linearly moved in an axial direction thereof, so that the output shaft may be linearly moved.
摘要:
There is provided an optical characteristic measuring method for measuring an optical characteristic of an optical system which forms, on a second plane, an image of an object arranged on a first plane, the optical characteristic measuring method including: arranging, on the first plane, a first area through which a measuring light passes or by which the measuring light is reflected; arranging a second area, through which the measuring light passes or by which the measuring light is reflected, on the second plane at a position corresponding to the first area; and detecting, via one of the first area and the second area, a light amount of the measuring light via the optical system and the other of the first area and the second area; wherein at least one of the first area and the second area has a shape such that a light amount, of the measuring light which passes or which is reflected via the optical system, is changed depending on the optical characteristic.
摘要:
A method and system is provided that takes advantage of the atmospheric transmission properties of the Hydrogen Lyman-α radiation line (121.6 nm wavelength) to illuminate a sample with high energy VUV photons at least partially in an atmospheric environment. Thus, according to the principles of the present invention, a sample is illuminated by radiation at the Hydrogen Lyman-α radiation line (121.6 nm wavelength), at least partially in an atmospheric environment, and luminescent radiation from the sample at longer wavelengths is detected. The high energy illuminating photons generate luminescent radiation from the sample at longer wavelengths, typically in the visible wavelength range, and this radiation can then be imaged, e.g. with a normal visible microscope.