Class / Patent application number | Description | Number of patent applications / Date published |
356123000 | FOCAL POSITION OF LIGHT SOURCE | 15 |
20080225278 | FOCAL POSITION DETERMINING METHOD, FOCAL POSITION DETERMINING APPARATUS, FEEBLE LIGHT DETECTING APPARATUS AND FEEBLE LIGHT DETECTING METHOD - A focal position determining method determines a focal position of an objective lens focused on an observed target region in a specimen. The focal position determining method includes measuring any one of the focal position of the objective lens at a near point and the focal position of the objective lens at a far point or both so as to determine the focal position of the objective lens focused on the observed target region based on the measured focal position. | 09-18-2008 |
20080297774 | Methods and apparatus for optical analysis of samples in biological sample containers - An apparatus and method for optically analyzing samples in a biological sample container containing samples arranged at different locations on the base of the container. An optical acquisition device is provided comprising a detector and an objective. The position of the upper and lower surfaces of the base at each of the sample locations is determined by a confocal polychromatic displacement sensor. Light is collected from each of the sample locations by adjusting the focal plane to be coincident with, or vertically offset from, the upper surface of the base, as determined from the displacement sensor. This allows for rapid scanning of large numbers of samples in a multi-well plate or other biological sample containers. | 12-04-2008 |
20110007304 | METHOD AND DEVICE FOR AUTOMATIC LASER FOCUSING - The invention relates to a process and an apparatus for automatic laser focusing. The core concept of the process is the automatable and especially preferably the automated photographing of the focal spot generated during a focus series by camera and a determination of the particular focal spot diameter as well as an evaluation of this data by an interpolated or approximating function that allows a conclusion about the focal spot with the smallest focal spot diameter and thus with the associated optimal focal distance. A series of disadvantages present in the state of the art can be avoided by using the process in accordance with the invention, in particular the great expenditure of time in the determining of the optimal focal distance and the uncertainty in the selection of the optimal focal spot associated with an operator are eliminated in the framework of the photographing of a focus series. | 01-13-2011 |
20110019184 | LIGHT RECEIVING DEVICE, FOCUS DETECTION DEVICE AND IMAGING DEVICE - A light receiving device that receives light having passed through an image forming optical system and outputs a light reception signal includes: a light receiving element array formed by arraying a plurality of light receiving elements; a micro-lens array disposed between the image forming optical system and the light receiving element array, which includes a plurality of micro-lenses arrayed in correspondence to the plurality of light receiving elements; and a storage unit that stores position-related information pertaining to a relative positional relationship assumed by the micro-lens array and the light receiving element array with respect to a plane perpendicular to optical axes of the micro-lenses. | 01-27-2011 |
20110102774 | Focus Sensor, Inspection Apparatus, Lithographic Apparatus and Control System - A focus sensor comprises a confocal sensor. Within the confocal sensor there are a plurality of aperture plates positioned in front of a plurality of detectors. Rather than a conventional pinhole aperture shape there is a central aperture surrounded by a plurality of outer aperture portions. | 05-05-2011 |
20110134416 | FOCAL POSITION DETECTING APPARATUS AND METHOD - A focal position detecting apparatus, for detecting a focusing condition and a tilting condition of an object, includes a planar beam generating module, an optical system, an optical sensor and a cylindrical lens. The planar beam generating module generates a planar light beam along a first path. The optical system is disposed on the first path, wherein the planar light beam, reflected by the object, passes through the optical system along a second path. The optical sensor is disposed on the second path. The cylindrical lens is disposed on the second path between the optical system and the optical sensor and an axis of the cylindrical lens is perpendicular to the second path. The planar light beam passes through the optical system and the cylindrical lens along the second path, before it is incident on the optical sensor to form a linear light spot for determining defocusing degree. | 06-09-2011 |
20110279812 | TEST APPARATUS, TEST METHOD, AND DEVICE INTERFACE - Provided is a test apparatus that tests a device under test including an optical coupler transmitting optical signals in a direction perpendicular to a device surface. The test apparatus comprises a substrate on which the device under test is to be loaded; an optical transmission path that transmits the optical signals: and a lens section that is provided facing the optical coupler on the substrate and that focuses the optical signals from an end of one of the optical coupler and the optical transmission path to an end of the other. | 11-17-2011 |
20120154794 | OPTICAL ANGLE-OF-ARRIVAL MEASUREMENT SYSTEM AND METHOD FOR MULTIPLE LIGHT SOURCES - An OAOA measurement system uses optical elements to converge incoming light from multiple sources onto an FPA as respective crosshair patterns made from lines which are oblique with respect to the FPA's axes, such that each pattern's location indicates the angular position of its corresponding source. The optical elements are arranged such that each crosshair's center point is at least twice as bright as the lines which form the crosshair's arms. The position of each crosshair is interpolated by defining regions around each arm of one of the crosshairs, determining the points of peak intensity in each row or column within each region, and curve-fitting the points to define each arm. Multiple crosshair patterns are accommodated by assigning a small magnitude value to each pixel of a defined arm, and then repeating the interpolation process for another crosshair. | 06-21-2012 |
20140063491 | BORESIGHT ERROR MONITOR FOR LASER RADAR INTEGRATED OPTICAL ASSEMBLY - Boresight and other pointing errors are detected based on a monitor beam formed by diverting a portion of a probe beam. The monitor beam is directed to a position sensitive photodetector, and the optical power received at the position sensitive photodetector is used to estimate or correct such pointing errors. | 03-06-2014 |
20140071438 | METHOD AND APPARATUS FOR IMAGE SCANNING - A method of estimating an in-focus level of a target in an image scanning apparatus, wherein the image scanning apparatus comprises a first line scan detector configured to obtain one or more image scan lines of the target and a second line scan detector configured to obtain one or more focus scan lines of the target, the second line scan detector comprising at least one focus shifting element such that each focus scan line is obtained at respective first and second focus levels, wherein the first focus level is different from the second focus level, the method comprising: obtaining at least one focus scan line of the target using the second line scan detector; obtaining at least one image scan line of the target using the first line scan detector, the image scan line being obtained at a respective third focus level; calculating at least one focus parameter using the at least one focus scan line; and estimating a nominal in-focus level of the target using the at least one focus parameter. | 03-13-2014 |
20140104600 | DEVICE AND METHOD FOR DETERMINING THE FOCUS POSITION OF A LASER BEAM - In order to determine the focus position of a laser beam ( | 04-17-2014 |
20140168640 | METHOD AND APPARATUS FOR IMAGE SCANNING - A method of estimating an in-focus level of a target in an image scanning apparatus is provided, wherein the image scanning apparatus comprises a first line scan detector configured to obtain one or more image scan lines of the target and a second line scan detector configured to obtain one or more focus scan lines of the target. The method comprises obtaining at least one image scan line of the target using the first line scan detector, each at least one image scan line being obtained at a respective focus level; obtaining at least one focus scan line of the target using the second line scan detector, each at least one focus scan line being obtained at a respective focus level; calculating at least one focus parameter using at least one focus scan line; and estimating a nominal in-focus level of the target using the calculated focus parameter(s). | 06-19-2014 |
20140362368 | FOCUS DETECTION APPARATUS, ELECTRONIC APPARATUS, MANUFACTURING APPARATUS, AND MANUFACTURING METHOD - There is provided a focus detection apparatus including: microlenses; light reception units that receive light which is incident through the microlenses; waveguides that cause light, which is incident to the microlenses at a predetermined angle, to be received by the light reception units and that are provided between the microlenses and the light reception units; and a detection unit that detects focusing output values from the light reception units. | 12-11-2014 |
20150009491 | SYSTEMS FOR AND METHODS OF FACILITATING FOCUSING AN OPTICAL SCANNER - Systems and methods for facilitating focusing of an image scanner, such as a confocal microscope, are disclosed. Measurement of optical characteristics in certain areas of a test sample are compared to stored or baseline optical characteristic profiles to determine an appropriate correction to properly focus the scanner. In one aspect, the method includes obtaining a dynamic profile at a current detection region of a test sample and associating the dynamic profile to a profile selected from a set of stored baseline profiles. Each of the stored baseline profiles is associated with a correction. | 01-08-2015 |
20220137321 | LASER MODULE - A laser module is provided and includes a laser unit, a focusing lens, an electric device, and a temperature control device. The laser unit is configured to emit a laser light. The focusing lens corresponds in position to the laser unit, and the focusing lens is configured to converge the laser light emitted from the laser unit so as to outwardly output the laser light. The electric device includes a focusing ring, a voice coil motor, and a motor base. The voice coil motor is configured to drive and move the focusing lens in a straight line toward or away from the laser unit with the focusing ring. The temperature control device is mounted on the laser unit and includes a thermoelectric cooling module and a thermistor. The thermoelectric cooling module is configured to cooperate with the thermistor to adjust a working temperature of the laser unit. | 05-05-2022 |