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7616330 |
Geometric measurement system and method of measuring a geometric characteristic of an object
A geometric measurement system is adapted to precisely measure one or more surfaces of objects such as corneas, molds, contact lenses in molds, contact lenses, or other objects in a fixture. The...
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7605927 |
Apparatus for optically determining the profile and/or upper surface properties of flat workpieces in a wide belt abrading machine
An elongated bar shaped housing contains an optical sensing apparatus with at least one light source to create a sensing beam and a deflecting arrangement which moves the sensing beam back and...
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7583392 |
Surface profile measuring apparatus
A surface profile measuring apparatus includes a light source assembly, a spatial light modulator, a spectroscope, a wave-front sensor, and a control-processing device. The light source assembly...
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7532333 |
Method and apparatus for determining the shape and the local surface normals of specular surfaces
A method teaches how to measure—even strongly curved—specular surfaces with an apparatus that measures a shape as well as local surface normals absolutely. This is achieved by the observation...
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7525667 |
Portable electronic measurement
The invention provides a handheld electronic gauge that is configured to obtain measurement data for an object, such as a wheel, rail, axle, or the like. The gauge includes one or more position...
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7518724 |
Image acquisition, processing, and display
Image data is acquired, processed, and/or displayed in accordance with an embodiment of the present disclosure to display, monitor, and/or demonstrate the progress of an experiment substantially in...
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7505150 |
Device and method for the measurement of the curvature of a surface
The invention relates to a device and a method for the measurement of the curvature of a surface ( 1 ), which is more exact and less expensive than prior art devices. The device comprises a light...
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7505149 |
Apparatus for surface inspection and method and apparatus for inspecting substrate
A target object has its surface condition inspected by having its image taken from above while being irradiated by red, green and blue light beams at different elevation angles. An inspection area...
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7492470 |
Method for three-dimensional shape measurement of a body
The invention relates to a method for three-dimensional shape measurement of a body or of a part thereof, in particular of a dental object such as a model, by scanning non-contact distance...
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7414733 |
Azimuthal scanning of a structure formed on a semiconductor wafer
A structure formed on a semiconductor wafer is examined by obtaining measurements of cross polarization components of diffraction beams, which were obtained from scanning an incident beam over a...
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7391523 |
Curvature/tilt metrology tool with closed loop feedback control
Apparatus for quantitatively measuring the curvature and/or relative tilt of large surfaces wherein a small array of parallel laser beams, each separated by a known distance, reflect from the...
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7362450 |
Specular surface flaw detection
An apparatus and a method for detecting low frequency specular surface flaws on coated substrates is disclosed. A method for detecting low frequency specular surface flaws may comprise: impinging...
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7312879 |
Distance determination in a scanned beam image capture device
Methods, systems, and devices can determine spatial relationships between a probe and a target surface. Specular reflections from the target surface vary dramatically with small changes in angle...
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7292350 |
Laser system for measurements of the profile of objects
A system for measuring a profile of an object comprising a source creating a beam of electromagnetic energy. An electromagnetic beam receiver spaced from the source for processing an output signal...
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7280200 |
Detection of a wafer edge using collimated light
A system and method of inspecting a semiconductor wafer that may be employed to detect and to characterize defects occurring on an edge of the wafer. The wafer inspection system includes an optical...
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7276380 |
Transparent liquid inspection apparatus, transparent liquid inspection method, and transparent liquid application method
The present invention provides a transparent liquid inspection apparatus capable of identifying a boundary between a transparent liquid applied on a base material which provides a multi-piece...
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7265822 |
Method and apparatus for determining presence of a component in a printed circuit board
A method and apparatus for determining color, presence and/or polarity of a component in a printed circuit board includes a sensor and an LED positioned behind a faceplate. The faceplate abuts the...
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7216065 |
Reflecting surface design system, reflecting surface design method, recording medium, and computer program
A reflecting surface design system ( 50 ) has (1) first rendering means ( 54 ) for displaying a free-form surface ( 20 ) on which a plurality of segments ( 24 ), each of which is defined by a...
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7170606 |
Multi-way LED-based surface reflectance sensor and spectrophotometer
A light sensor circuit based on direct connection of LEDs to I/O pins of a microcontroller. The LEDs are reverse biased and the parasitic junction capacitance is charged in an output mode. Then,...
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7167584 |
Device for acquiring a three-dimensional shape by optoelectronic process
The invention concerns a device for acquiring the three-dimensional shape of an object ( 10 ) by opto-electronic process, comprising a chromatic system ( 18 ) for illuminating the object ( 10 ) and...
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7133140 |
Apparatus and measurement procedure for the fast, quantitative, non-contact topographic investigation of semiconductor wafers and other mirror like surfaces
Apparatus and process for fast, quantitative, non-contact topographic investigation of samples. Apparatus includes a light source, and a collimating concave mirror structured and arranged to...
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7123324 |
Reflector providing particularly high reflectance in an intended viewing angle and reflection type liquid crystal display device using the same
The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended...
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6998628 |
Method of media type differentiation in an imaging apparatus
A method of media type differentiation includes the steps of providing a media sensor including a specular detector that provides a specular signal output having a signal level related to an amount...
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6989890 |
Apparatus for taking up an object space
The present invention is directed to a system and method for taking up an object space using a laser range finder and a scanning device for scanning the object space. Furthermore, there is a...
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6980300 |
Method and apparatus for generating a polishing process endpoint signal using scatterometry
A method for polishing wafers includes polishing a process layer formed on a wafer, the process layer overlying a grating structure; illuminating at least a portion of the process layer and the...
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6947151 |
Surface state inspecting method and substrate inspecting apparatus
In a substrate inspecting apparatus comprising a projecting section ( 4 ) in which light sources ( 8 ), ( 9 ) and ( 10 ) are provided for emitting colored lights of R, G and B in directions having...
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6940609 |
Method and system for measuring the topography of a sample
An imaging method and system are presented for detecting the topography of a sample surface. Illuminating light is directed to the sample by sequentially passing the illuminating light through a...
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6879384 |
Process and apparatus for measuring an object space
A process and an apparatus for measuring an object space using an opto-electronic range finder which operates according to a method of determining the time-of-flight of a signal comprise a first...
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6859269 |
Surveying instrument and method for acquiring image data by using the surveying instrument
A surveying instrument, comprising a distance measuring unit for measuring a distance to a collimating point, an angle measuring unit for measuring a vertical angle and a horizontal angle of the...
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6853459 |
Scanning using position transmission for triggering the recording of measured values
The start of the displacement movement is initiated by a software instruction when measuring surface topologies with microscopic resolution. Trigger pulses which serve to trigger the recording of...
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6768551 |
Contactless wheel measurement system and method
The present invention provides a wheel measurement method and system to measure an attribute of a wheel. Light illumination devices and light sensing devices provide wheel data. A computer then...
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6700656 |
Flow visualization and characterization of evaporating liquid drops
An optical system, consisting of drop-reflection image, reflection-refracted shadowgraphy and top-view photography, is used to measure the spreading and instant dynamic contact angle of a...
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6661523 |
Method for determining and designing optical elements
A method for determining or designing the topography of at least one unknown surface of an optical element includes the steps of measuring or prescribing geometrical properties, determining a set...
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6639239 |
Angle rejection filter
A method and apparatus reduces undesirable glints in an optical position alignment sensor designed to orient components. Collimated light is provided onto the component. A filter is positioned...
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6636303 |
Foreign substance inspecting method and apparatus, which detect a height of a foreign substance, and an exposure apparatus using this inspecting apparatus
A foreign substance inspecting method includes the steps of detecting a height of a foreign substance attaching to a periphery of a wafer by irradiating a light beam from a light source to the...
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6573998 |
Optoelectronic system using spatiochromatic triangulation
In accordance with the teachings of the present invention, an optoelectronic system ( 10 ) is provided for surface digitization of an object using spatiochromatic triangulation. The optoelectronic...
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6555836 |
Method and apparatus for inspecting bumps and determining height from a regular reflection region
A method of inspecting bumps provided on a surface of an object to be inspected includes the steps of: (a) irradiating a first irradiation beam on said object in an oblique direction and (b)...
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6493096 |
Method of determining reflective surface of reflector in vehicle lamp
In a shape determining method of a reflective surface 10 a of a reflector 1 in a vehicle lamp in such structure that a basic shape thereof is a free-formed surface 20 satisfying shape...
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6460594 |
Method of forming a metal statuette of a three-dimensional object
A method of forming a gold statuette of a three-dimensional object, e.g. a man, is disclosed as including the steps of (1) scanning the man with scanning means to obtain data on his contour and...
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6403974 |
Test device for horizontal position of an optical disc drive motor
A test device for horizontal position of an optical disc drive, comprising a test platform having a plurality of vertical position rods mounted thereon and the rods being of similar horizontal...
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6356399 |
Light projecting method, surface inspection method, and apparatus used to implement these methods
The present invention provides a light illuminating method, a surface examining method using the light illuminating method, and apparatuses for performing these methods. In the surface illuminating...
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6327041 |
Method and device for opto-electrical acquisition of shapes by axial illumination
A method and a device for opto-electrically acquiring the shape of a surface by illuminating the surface (S) with light beams (10) having different wavelengths and which converge at different...
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6166809 |
System for point-by-point measuring of spatial coordinates
A system for point-by-point measurement of spatial coordinates comprising: one or more opto-electronic cameras (7, 8) arranged for measuring spatial direction to point-shaped light sources; one or...
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6160620 |
Optical contact sensor
An optical sensor for use on an electronic component placement machine. A spindle tip on a placement head for the machine holds the electronic component to be placed on a printed circuit board by...
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6118524 |
Arc illumination apparatus and method
An illumination apparatus and method illuminates one or more reflective elements, such as solder balls on an electronic component or other protruding surfaces or objects. The illumination apparatus...
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5903355 |
Method and apparatus for checking a predetermined monitoring area
Method for checking a predetermined monitoring area, wherein at least one distance sensor provided in particular in the edge region of the monitored area, which transmits a scanning beam which...
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5880816 |
Process for exposing the peripheral area of a semiconductor wafer for removing unnecessary resist on the semiconductor wafer and a device for executing the process
To effect exposure of the peripheral area of a wafer to remove an unnecessary resist with a step shape in a development process with high precision and ease, even if the position has errors, in...
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5841149 |
Method of determining the distance of a feature on an object from a microscope, and a device for carrying out the method
The invention is directed to a surgical microscope in which, to determine the distance between the microscope (8, 13) and the object (22), the travel time of a beam of light (57c) emanating from...
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5818594 |
Method and apparatus for measuring the dimensions of three-dimensional objects such as chips used in pulp manufacture
A method and apparatus for recording light reflecting and shadowed areas of a three-dimensional object which is conveyed relative to a detector wherein the object is alternately illuminated from a...
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5790243 |
Highway profile measuring system
A system for measuring the quality of pavement surfaces. An amplitude modulated laser scanning system, mounted on a motor vehicle, scans the pavement surface as the motor vehicle travels over it. A...
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