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4040 results about "Mirror plane" patented technology
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A plane mirror is a flat mirror that reflects light and produces a virtual image without the interference of an inward or outward curve. Plane mirrors, which include the common bathroom and hallway mirrors used daily, produce a virtual image at the same magnification and distance as the object they reflect.
Catadioptric projection objective
ActiveUS20050190435A1High image side numerical apertureSmall amountSemiconductor/solid-state device manufacturingMicroscopesIntermediate imageHigh numerical aperture
A catadioptric projection objective for imaging a pattern provided in an object plane of the projection objective onto an image plane of the projection objective comprises: a first objective part for imaging the pattern provided in the object plane into a first intermediate image; a second objective part for imaging the first intermediate imaging into a second intermediate image; a third objective part for imaging the second intermediate imaging directly onto the image plane; wherein a first concave mirror having a first continuous mirror surface and at least one second concave mirror having a second continuous mirror surface are arranged upstream of the second intermediate image; pupil surfaces are formed between the object plane and the first intermediate image, between the first and the second intermediate image and between the second intermediate image and the image plane; and all concave mirrors are arranged optically remote from a pupil surface. The system has potential for very high numerical apertures at moderate lens material mass consumption.
Owner:CARL ZEISS SMT GMBH
Mirror reflective element for a vehicle
InactiveUS7338177B2Low costEconomically manufacturedMirrorsVisible signalling systemsDriver/operatorEngineering
Owner:DONNELLY CORP
Flat sic semiconductor substrate
ActiveUS20140117380A1Efficient polishingImprove performanceEdge grinding machinesPolycrystalline material growthCrystallographyWafering
Methods for manufacturing silicon carbide wafers having superior specifications for bow, warp, total thickness variation (TTV), local thickness variation (LTV), and site front side least squares focal plane range (SFQR). The resulting SiC wafer has a mirror-like surface that is fit for epitaxial deposition of SiC. The specifications for bow, warp, total thickness variation (TTV), local thickness variation (LTV), and site front side least squares focal plane range (SFQR) of the wafer are preserved following the addition of the epitaxy layer.
Owner:SK SILTRON CSS LLC
Mirror reflective element for a vehicle
InactiveUS20050134983A1Low costEconomically manufacturedMirrorsVisible signalling systemsEngineeringSpecular reflection
An interior rearview mirror assembly for a vehicle includes a prismatic mirror element and a display element. The prismatic mirror element includes a wedge-shaped prism element having a front surface and a rear surface and a second element having a transflective reflector on a first surface thereof. The front surface of the prism element generally faces a driver of the vehicle when the mirror assembly is installed in the vehicle, and the rear surface is opposite the front surface. The transflective reflector coated first surface of the second element is attached to the rear surface of the prism element via an optically matching medium. The display element is positioned to the rear of the prismatic mirror element and operates to display information through the prismatic mirror element so as to be viewable by a driver of the vehicle when the display element is operated to emit visible light.
Owner:DONNELLY CORP
Rearview Mirror Assemblies With Anisotropic Polymer Laminates
ActiveUS20100277786A1High strengthAdequate flatness of filmPolarising elementsNon-linear opticsLower limitGlass transition
Anisotropic film laminates for use in image-preserving reflectors such as rearview automotive mirror assemblies, and related methods of fabrication. A film may comprise an anisotropic layer such as a light-polarizing layer and other functional layers. The film having controlled water content is heated under omnidirectional pressure and vacuum to a temperature substantially equal to or above a lower limit of a glass-transition temperature range of the film so as to be laminated to a substrate. The laminate is configured as part of a mirror structure so as to increase contrast of light produced by a light source positioned behind the mirror structure and transmitted through the mirror structure towards a viewer. The mirror structure is devoid of any extended distortion and is characterized by SW and LW values less than 3, more preferably less than 2, and most preferably less than 1.
Owner:GENTEX CORP
High numerical aperture ring field projection system for extreme ultraviolet lithography
An all-refelctive optical system for a projection photolithography camera has a source of EUV radiation, a wafer and a mask to be imaged on the wafer. The optical system includes a first concave mirror, a second mirror, a third convex mirror, a fourth concave mirror, a fifth convex mirror and a sixth concave mirror. The system is configured such that five of the six mirrors receives a chief ray at an incidence angle less than substantially 12 DEG , and each of the six mirrors receives a chief ray at an incidence angle of less than substantially 15 DEG . Four of the six reflecting surfaces have an aspheric departure of less than substantially 7 mu m. Five of the six reflecting surfaces have an aspheric departure of less than substantially 14 mu m. Each of the six refelecting surfaces has an aspheric departure of less than 16.0 mu m.
Owner:EUV
Interferometric back focal plane scatterometry with Koehler illumination
An interference spectroscopy instrument provides simultaneous measurement of specular scattering over multiple wavelengths and angles. The spectroscopy instrument includes an interference microscope illuminated by Koehler illumination and a video camera located to image the back focal plane of the microscope's objective lens while the path-length difference is varied between the reference and object paths. Multichannel Fourier analysis transforms the resultant intensity information into specular reflectivity data as a function of wavelength. This multitude of measured data provides a more sensitive scatterometry tool having superior performance in the measurement of small patterns on semiconductor devices and in measuring overlay on such devices.
Owner:ZYGO CORPORATION
Mirror having a portion in the form of an information provider
Owner:MIRROR IMAGE INC
Data reader and methods for imaging targets subject to specular reflection
ActiveUS20060163355A1Character and pattern recognitionRecord carriers used with machinesSensor arrayBarcode
A data reader such as for example an imaging reader with a CCD or CMOS imager or the like, having multiple images of a target item illuminated or acquired from different directions in which the image signals are combined into a complete image of the item or selected portions of the item being read such that specular reflection (over-saturated regions of the sensor array) are minimized or eliminated. In one example data reader configuration, multiple illumination sources such as first and second rows of light emitting diodes (LED's) are aimed at the item being scanned from different directions. The illumination sources are alternately pulsed and return signals are collected at one or more sensor arrays. A selected non-saturated return signal from one of the illumination sources, or selected non-saturated portions of return signal from both of the illumination sources are processed to generate a complete non-saturated image of the target. In one preferred processing scheme, assuming that each of the LED's is capable of illuminating the entire target (e.g. a barcode), a pixel-by-pixel minimum is taken of the two images thereby producing an image with specular reflection minimized or nearly eliminated.
Owner:DATALOGIC SCANNING
Ray Image Modeling for Fast Catadioptric Light Field Rendering
A catadioptric camera creates images light fields from a 3D scene by creating ray images defined as 2D arrays of ray-structure picture-elements (ray-xels). Each ray-xel capture light intensity, mirror-reflection location, and mirror-incident light ray direction. A 3D image is then rendered from the ray images by combining the corresponding ray-xels.
Owner:SEIKO EPSON CORP
Electronic endoscope
Owner:FUJIFILM CORP
Flip-up convex mirror attachment
A flip-up convex mirror attachment for installation onto the original equipment mirror in vehicles with either a left-side or right-side driver. The flip-up convex mirror attachment attaches to the mirror surface of the original equipment interior mirror found in most motor vehicles. The flip-up convex mirror attachment contains an angled hinge block for creating a predefined offset angle between the flip-up convex mirror and the OEM mirror such that the reflected image on the side of the mirror nearest the driver is maintained at generally the same point behind the vehicle as the original equipment mirror. The wedge-based hinge assembly may be attached to the flat mirror surface on either a left-side or right-side driver vehicle and still maintain the desired angular offset between the OEM and flip-up convex mirrors.
Owner:ROOSE ALISON L
Mirror with monitor for vehicle
InactiveUS20100245701A1Increase volumeImprove visibilityPolarising elementsNon-linear opticsWire gridDark color
Owner:MURAKAMI CORP
Mask for use in lithography, method of making a mask, lithographic apparatus, and device manufacturing method
InactiveUS6927004B2Loss of contrastReduce specular reflectionNanoinformaticsSemiconductor/solid-state device manufacturingGratingEngineering
A reflective mask has a sub-resolution texture applied to absorbing areas to reduce the amount of power in the specular reflection. The texture may form a phase contrast grating or may be a diffuser. The same technique may be applied to the other absorbers in a lithographic apparatus.
Owner:ASML NETHERLANDS BV
Vehicular rearview mirror element having a display-on-demand display
InactiveUS7543947B2Reduce material costsGood optical performanceMirrorsAntiglare equipmentDisplay deviceOptoelectronics
Owner:DONNELLY CORP
Exterior mirror element with integral wide angle portion
Owner:DONNELLY CORP
Passive collimating tubular skylight
InactiveUS6363667B2Convenient lightingImproved passive tubular skylightsBuilding roofsCeilingsEngineeringSpecular reflection
Owner:ENTECH INC
Electrochromic mirrors and devices
InactiveUS20060028730A1Reduce material costsGood optical performanceMirrorsAntiglare equipmentDisplay deviceEngineering
An electrochromic rearview mirror element for a motor vehicle comprises a first substantially transparent front substrate having a first and a second surface (and with a substantially transparent conductive electrode on its second surface) and a rear substrate having a third and a fourth surface. The rear substrate is positioned in spaced-apart relationship with the front substrate and with its third surface opposing the second surface of the front substrate. A mirror reflector is disposed on the third surface and a seal is positioned toward a peripheral edge of the substrates forming a cavity therebetween. An electrochromic medium is disposed in the cavity. The mirror reflector preferably comprises a metal layer that reflects at least about 70% of visible light. A display device can be disposed behind the rear substrate. The display device preferably exhibits, when electrically powered, a display luminance of at least about 30 foot lamberts as measured with the display device placed behind, and emitting light through, the electrochromic medium and with the electrochromic medium in its bleached state.
Owner:DONNELLY CORP
Stereoprojection system
InactiveUS20090102915A1Add depthReduces pushing border effectMirrorsProjectorsMonitoring systemProjection system
The invention relates to stereo projection systems for displaying stereopaired images on mirror-spherical or parabolic screens and for collectively watching a stereo effect without using stereo spectacles. Said invention makes it possible to continuously dynamically superimpose the projections of the left and right picture frames of a steropair with the user's left and right eyes, respectively. Such impositions are carried out simultaneously and independently for each viewer. The technical result is attainable by that the inventive stereo projection system comprises stereo projectors which are individually allocated to each viewer and in-series connected, a monitoring system for continuously and accurately determining the viewers' eye positions, a self correcting device, video-correcting devices, automatic drives for the mechanical self-correction of the stereo projectors and the system optical elements, units which are used for forming stereopair projected images in the stereo projector and which are coupled with the video-correcting device for the video-correction of the optimal parameters of the screen images. The inventive system makes it possible to carry out the self- and video-correction in an integral manner in such a way that the comfort of the stereo effect viewing is maximally satisfied.
Owner:ARSENICH SVYATOSLAV IVANOVICH
Automated overlay metrology system
InactiveUS20020192577A1Reduced expense and complexityHigh resolutionSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device detailsSpectral curveSpectral response
Non-imaging measurement is made of misalignment of lithographic exposures by illuminating periodic features of a mark formed by two lithographic exposures with broadband light and detecting an interference pattern at different wavelengths using a specular spectroscopic scatterometer including a wavelength dispersive detector. Misalignment can be discriminated by inspection of a spectral response curve and by comparison with stored spectral response curves that may be empirical data or derived by simulation. Determination of best fit to a stored spectral curve, preferably using an optimization technique can be used to quantify the detected misalignment. Such a measurement may be made on-line or in-line in a short time while avoiding tool induced shift, contact with the mark or use of a tool requiring high vacuum.
Owner:NIKON CORP
Exterior mirror element with integral wide angle portion
A mirror reflective element for an exterior rearview mirror assembly of a vehicle includes a mirror substrate having a front surface and a rear surface. The mirror substrate has a first reflector portion and a second reflector portion, with the first reflector portion having a principal reflector portion of the mirror reflective element. The rear surface of the mirror substrate has a curved recess established thereat, and the second curved reflector portion is established at the curved recess. The curved recess has a radius of curvature that is less than a radius of curvature of the first reflector portion, whereby the curved recess, when coated by a reflector coating, provides a wide angle auxiliary reflector portion integrally formed with the mirror reflective element.
Owner:DONNELLY CORP
Optical inspection system, illumination apparatus and method for use in imaging specular objects based on illumination gradients
InactiveUS20040184653A1Image analysisCharacter and pattern recognitionLight equipmentSurface gradient
An optical inspection system uses an illumination gradient to gradually spatially vary the intensity and / or specular characteristics of the illumination reflected from the surface of a specular object to determine surface gradients of the object. The surface gradients can be used to reconstruct a three-dimensional image of the object. The illumination gradient can be produced by an illumination apparatus that includes circular arrays of light-emitting elements. The illumination gradient can also be produced using an optical element that gradually alters the illumination intensity of the reflected illumination in accordance with the incidence characteristics of the reflected illumination on the optical element. The illumination gradient enables the use of numerous illumination angles to reduce error in estimated surface gradients without increasing imaging or processing time.
Owner:AGILENT TECH INC
Object three-dimensional contour outline measuring set and measuring method
ActiveCN101451826AUniform light intensity at the spectral pointImprove energy utilizationUsing optical meansInformation processingMeasurement device
An object three-dimensional outline measurement device and a measurement method are disclosed, the device is composed of a laser diode, a lens, an aperture diaphragm, a two-dimensional Dammam grating, a cylindrical mirror and an area array CCD camera, a transmission line and a computer, the connection relationship therebetween is as below: a beam emitted by the laser diode passes through the lens, the aperture diaphragm, the two-dimensional Dammam grating, and the cylindrical mirror sequentially to form one-dimensional projection array stripes, which illuminates the surface of an objective to be measured, the area array CCD camera collects the grating projection strips modulated by three-dimensional digital shape on the surface of the measured objective and outputs the strips to the computer via the transmission line, the computer includes an image collecting interface, image collecting software and three-dimensional measurement information reconstruction algorithm software. The invention has, by utilizing the Fourier transform three-dimensional outline measurement structure, the advantages of high energy utilization rate, simple measurement structure, high measurement precision, convenient computer reconstruction information processing and great easiness for operation.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Apparatus and measurement procedure for the fast, quantitative, non-contact topographic investigation of semiconductor wafers and other mirror like surfaces
InactiveUS7133140B2Optically investigating flaws/contaminationUsing optical meansLight beamSemiconductor
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 produce a parallel beam and to direct the parallel beam to a sample to be investigated. A structured mask is located between the light source and the concave mirror, and an image sensor structured and arranged to receive a beam reflected from the sample and the concave mirror. Relative positions of the mask and the sensor to other elements of the apparatus are chosen to provide an essentially sharp image of the mask on the sensor. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
Owner:HUNGARIAN ACAD OF SCI RES INST FOR TECHN PHYSICS & MATERIALS SCI +1
Beam irradiation apparatus, beam irradiation method, and method for manufacturing a thin film transistor
InactiveUS20050036190A1Uniform crystallinityUniform characteristicsLaser beam welding apparatusOptical elementsGalvanometerLight beam
A galvanometer mirror rotates in one direction when the galvanometer mirror is used. A spot can be scanned on an irradiated surface at a more constant speed by rotating the galvanometer mirror and by using the inertia. Moreover, it is preferable to make the galvanometer mirror heavy because the inertia becomes higher so that the spot is scanned at a more constant speed. In addition, in a polygon mirror of this invention, mirrors are arranged so as not to contact each other because a change time of the scanning position between the mirrors is provided. By moving the irradiated object with timing together when the laser light is not irradiated, the laser process can be performed efficiently.
Owner:SEMICON ENERGY LAB CO LTD
Mirror system and control method therefor
ActiveUS20130286047A1Television system detailsColor television detailsInformation controlComputer vision
In a mirror system for displaying an image on a mirror surface, a mirror reflects incident light from an object facing its front surface side to present a reflected image, and transmits incident light from its rear surface. A display unit generates a presentation image to be superimposed on the reflected image. An optical unit is arranged between the display unit and the rear surface of the mirror, and images the presentation image. An acquisition unit acquires distance information between the object and the mirror. A controller controls the imaging point of the presentation image by the optical unit according to the distance information.
Owner:CANON KK
Optical scanning device and image forming apparatus
InactiveUS20100091083A1Avoid loopsInking apparatusOther printing apparatusOptical scanningElectrical and Electronics engineering
An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.
Owner:RICOH KK
Speckle reduction in laser-projector images
InactiveUS20080212034A1Reduce appearance problemsSpeckle reductionProjectorsMountingsSpatial light modulatorSpecular reflection
A laser projector having a configurable spatial light modulator (SLM) adapted to display various spatial modulation patterns and redirect illumination from a laser to form an image on the viewing screen. The laser projector drives the SLM to change spatial modulation patterns at a rate that causes the corresponding sequence of projected images to fuse to mitigate appearance of speckle in the resulting fused image. The SLM can be designed to redirect the illumination using either diffraction or specular reflection of light from the displayed spatial modulation pattern. In one embodiment, the SLM is a MEMS device having an array of individually addressable mirrors supported over a substrate and adapted to move (e.g., translate and / or rotate) with respect to the substrate.
Owner:ALCATEL-LUCENT USA INC
Low-power eyewear for reducing symptoms of computer vision syndrome
Computer eyewear for reducing the effects of Computer Vision Syndrome (CVS). In one embodiment, the eyewear comprises a frame and two lenses. In some embodiments, the frame and lenses have a wrap-around design to reduce air flow in the vicinity of the eyes. The lenses can have optical power in the range from about +0.1 to +0.25 diopters, or from about +0.125 to +0.25 diopters, for reducing accommodation demands on a user's eyes when using a computer. The lenses can also include prismatic power for reducing convergence demand on a user's eyes when sitting at a computer. The lenses can also include a partially transmissive mirror coating, tinting, and anti-reflective coatings. In one embodiment, a partially transmissive mirror coating or tinting spectrally filters light to remove spectral peaks in fluorescent or incandescent lighting.
Owner:GUNNAR OPTIKS LLC
Security device with patterned metallic reflection
ActiveUS7063924B2Improve securityDiffusion transfer processesOther printing matterSafety EquipmentMaterials science
The invention relates to an image device comprising a base material having a pattern of diffuse and specular metallic reflectivity and overlaying said pattern an image.
Owner:EASTMAN KODAK CO
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