Matches 251 - 300 out of 307 < 1 2 3 4 5 6 7 >
Match Document Document Title
5537247 Single aperture confocal imaging system  
A confocal scanning imaging system utilizes only one aperture for both the incident light from the light source and return light from the object. To improve its performance, the aperture plate is...
5513005 Method of operating a surgical microscope arrangement for computer-supported stereotactic microsurgery on a patient  
A defined determination of the field of view observed through a surgical microscope is made. To achieve this determination, the relative current position of the plane of the field of view to the...
5493109 Optical coherence tomography assisted ophthalmologic surgical microscope  
Ophthalmologic surgical microscope which is combined internally with an optical coherence tomography ("OCT") apparatus wherein auto-focusing is provided by driving a motorized internal focusing...
5483055 Method and apparatus for performing an automatic focus operation for a microscope  
A method for quickly performing an auto-focus operation on a confocal microscope. As a coarse Z-stage moves a target toward an objective lens, a photodetector generates an analog electronic focus...
5477333 Displacement detecting apparatus  
A displacement detecting apparatus for detecting a displacement between an object lens thereof and a measured surface in a non-contact manner. The displacement detecting apparatus comprises an...
5434703 Binocular stereomicroscope  
A binocular stereomicroscope is provided with a binocular magnifying optical system and an objective lens unit, which is located in front of the binocular magnifying optical system. The objective...
5396063 Objective replacing apparatus having objective position, displacement and address detecting means and microscope using it  
An apparatus for detecting a rotation operation of revolver is provided with a rotation direction detecting device for detecting a rotation direction of revolver by detecting a displacement of a...
5355252 Scanning laser microscope  
A scanning laser microscope capable of detecting a fine structure producing low contrast and easily measuring the length, the volume, and so forth of an object. A laser beam is focused onto the...
5317142 Automatic focusing apparatus which removes light reflected by a lower surface of a sample  
The automatic focusing apparatus of this invention focuses the measuring beam emitted from a light source on a sample through one side of the pupil of an objective lens, causes light reflected by...
5311288 Method and apparatus for detecting surface deviations from a reference plane  
A method and apparatus for detecting deviation of an examined surface from a reference plane, by: generating first and second beams of radiation, directing the first beam along a first fixed path...
5306902 Confocal method and apparatus for focusing in projection lithography  
A through-the-lens method and system for focusing a projected image onto an imaging surface employs a confocal process and apparatus. Electromagnetic radiation projected through a subresolution...
5288987 Autofocusing arrangement for a stereomicroscope which permits automatic focusing on objects on which reflections occur  
The invention relates to a high-precision autofocusing arrangement for a stereomicroscope wherein a bar-shaped marking is projected via a cylinder optic on an object. The imaged bar-shaped marking...
5270527 Method for autofocusing of microscopes and autofocusing system for microscopes  
A method and system for autofocusing of microscopes. The image of the object or of a structure which is reflected onto the object is passed to two detectors or to two regions of a detector, one...
5266791 Autofocus binocular stereomicroscope  
A binocular stereomicroscope comprises a binocular magnifying optical system, which is composed of right and left sets of elements, an objective lens, which is located in front of the binocular...
5260825 Microscope  
A microscope has a plural number of objective lenses switchable from one to another, a memory circuit for storing parfocality data for the individual objective lenses, and a correcting device for...
5254845 Automatic focusing system using focal length-changing element  
In an automatic focusing system an element (2) is inserted in the path of a beam of light (3) directed towards a sensor array. The element comprises a transparent material or predetermined...
5248876 Tandem linear scanning confocal imaging system with focal volumes at different heights  
A confocal imaging system utilizes an opaque mask with a slit and a row of pinpoint sensors or utilizes an opaque mask with a skewed pattern of pinholes and an array of isolated pinpoint sensors in...
5247165 Displacement detecting apparatus using graduated linear scale  
A displacement detecting apparatus comprises a non-contacting sensor for detecting a displacement of a measured surface, a linear scale unitarily attached to the non-contacting sensor through a...
5245173 Automatic focal-point sensing apparatus sensing high and low magnification  
An automatic focal-point sensing apparatus includes a lighting optical system (14, 15) for illuminating a specimen. An objective optical system (5), which receives the optical image from the...
5239355 Microscopic system for examination of crystal cleavage plane  
An optical microscope equipped with an optical device allowing a convergent beam to irradiate the surface of a specimen through a microscope tube and an objective lens. The device detects the...
5239170 Autofocus method and apparatus for imaging microscopy using a predetermined visual imaging feature  
A method of, and apparatus for, automatically focussing a microscope objective (18). The apparatus includes an image detector (26) for obtaining an image, through the microscope objective, of a...
5231279 Automatic focusing mechanism for an operation microscope having an origin returning mechanism  
The invention relates to an automatic focusing mechanism for an operation microscope. In the apparatus in accordance with the invention, when the position and angle of the operation microscope is...
5208451 Method and apparatus for automated focusing of an interferometric optical system  
A method and apparatus for removing the deleterious effects of interference on the focus error signal when focusing interferometric optical systems using triangulation or astigmatic techniques....
5132526 Confocal scanning microscope having a signal output regulating means  
A confocal scanning microscope comprises a specimen support, a light source, a light-projecting optical system, a light-receiving optical system, a light detector, a mechanism for two-dimensionally...
5125746 Surface topography measurement apparatus and method  
This patent describes a mechano-optical non-contact system, and method of use, for characterizing the topography of an area of a surface. The instrumentation consists of an optical system that...
5122648 Apparatus and method for automatically focusing an interference microscope  
Automatic focusing of an interference microscope is accomplished by directly sensing an interference pattern produced by a white light source with an auxiliary point detector. A beamsplitter...
5101277 Automatic focus adjustment apparatus for performing position control between consecutive images  
The present invention is an automatic focus adjustment apparatus in which an object to be inspected is picked up by a camera (5) through an optical system (4), a video signal which is...
5084612 Imaging method for scanning microscopes, and confocal scanning microscope  
Preliminary two-dimensional scanning of a sample with a light beam is carried out before an operation for obtaining an image signal representing a microscope image is carried out. During the...
4965441 Method for the scanning confocal light-optical microscopic and indepth examination of an extended field and devices for implementing said method  
Method for the scanning confocal light-optical microscopic and in-depth examination of an extended field and devices for implementing said method. The method consists of forming a principal...
4963724 Apparatus for producing an optical image contrast  
An apparatus for producing an optical image contrast which may be used in a microscope is disclosed. Specifically, the apparatus is based on the Moire effect and uses two screens or gratings which...
4958920 Process and apparatus for the automatic focusing of microscopes  
Fast and versatile autofocusing for microscopes is achieved by the interaction of two known systems: a first, active autofocusing system (12) which projects at least one light dot on the object and...
4945220 Autofocusing system for microscope having contrast detection means  
An autofocusing system for a microscope is disclosed. An autofocus target is placed between a colliminating lens and a relay lens of the microscope. The autofocus target contains a pattern of dark...
4897537 Automatic focus adjusting system of microscope employed in surface inspection apparatus  
An automatic focus adjusting system for a surface inspection microscope including a sheet setting stage, a microscope for observing a sheet surface set on the stage, a television camera for picking...
4844617 Confocal measuring microscope with automatic focusing  
A confocal measuring microscope including a spectrometer and autofocus system sharing common optical elements in which the intensity of light entering the spectrometer from a particular spot on a...
4845352 Scanning differential phase contrast microscope  
An objective system (20) focusses the radiation from a radiation source (10) to a diffraction-limited spot (A) which is imaged on two point detectors (61, 62) by an imaging system (40) and a beam...
4810869 Automatic focusing control method for microscope  
An automatic focusing control method for microscope includes preliminarily determining and storing respective in-focus positions of an objective lens of the microscope for a plurality of points on...
4803352 Autofocusing system for a microscope and method of using the same  
A microscope with continuously or discontinuously variable objective magnification is provided with an autofocus system, the beam path of which passes through the objective and is directed out of...
4798948 Field stop for dark field illumination in autofocus optical device  
An optical component is described which can be introduced into a finite or an infinite beam path and which is provided with a spectrally selective filtering characteristic and thus as the same time...
4725720 Microscope with auto focus and light adjusting means  
A microscope comprises: a mount for mounting an object, a light source for illuminating the object, an enlarging optical system including a plurality of objectives provided on a revolver, and...
4695158 Focus error detector  
A focus error detector comprises an inner group of light detector elements formed in a circular area about a focus point of an illumination beam for generating a first focus error signal. A second...
4687913 Microscope autofocus system  
An autofocus mechanism for a microscope comprises an arrangement of optical elements aligned along a single optical path. The arrangement includes a single illumination source which provides both a...
4677286 Method and apparatus for autofocusing a microscope  
An autofocusing microscope includes a spot marker assembly for projecting a spot marker on the sample surface. The image of the spot marker is continuously scanned while the objective lens is moved...
4639587 Automatic focusing system for a microscope  
An automatic microscope focusing system including a light source 44, a dual channel fiber optics bundle 56 and 58, chopper means 54 for alternately admitting light to the channels, a reticle 66 and...
4595271 In-focus state detection device  
An in-focus state detection device having a light source for emitting a near-infrared light for detecting an in-focus state of an object lens by sensing the light of the light source reflected by...
4587416 Focus detecting apparatus for microscope or camera  
A focus detecting apparatus having an optical device movable to cause the light from an object to be imaged on a predetermined plane and comparing the different imaged conditions of the light from...
4579454 Optical profilometer for steep surface contours with significant surface tilt  
An optical profilometer for surface contours subject to tilt is optically scanned to measure the surface contours. Surface tilt effects are obviated by slitted apertures in the paths of the...
4516840 In-focus detector for a binocular stereomicroscope  
An in-focus detector for a binocular stereomicroscope having a pair of left- and right-hand observation optics includes a pair of beam splitters, each disposed intermediate the objective lens and...
4512642 Automatic focusing apparatus in optical drawing machine  
Automatic focusing apparatus in an optical drawing machine, comprising a drawing optical means having a dichroic mirror which transmits light for drawing and reflects light for detecting the focus...
4363961 Automatic focusing apparatus  
A automatic focusing apparatus is disclosed for automatically focusing a focal point on an object substrate wherein the pn junction of an emitting part of a semiconductor ray source itself, has the...
4342905 Automatic focusing device of a microscope  
An automatic focusing device of a microscope having an objective lens and a stage on which a specimen is placed comprises distance varying means for varying the relative distance between the...
Matches 251 - 300 out of 307 < 1 2 3 4 5 6 7 >