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184 results about "Both lenses" patented technology
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Method and apparatus for three-dimensional microscopy with enhanced resolution
InactiveUSRE38307E1Add depthImprove resolutionMicroscopesColor/spectral properties measurementsOphthalmologyImage resolution
A method and apparatus for three dimensional optical microscopy is disclosed which employs dual opposing objective lenses about a sample and extended incoherent illumination to provide enhanced depth or Z.Iadd.-.Iaddend.direction resolution. In a first embodiment, observed light from both objective lenses are brought into coincidence on an image detector and caused to interfere thereon by optical path length adjustment. In a second embodiment, illuminating light from an extended incoherent light source is detected to the sample through both objective lenses and caused to interfere with a section of the sample by adjusting optical path lengths. Observed light from one objective lens is then recorded. In a third embodiment, which combines the first two embodiments, illuminating light from an extended incoherent light source is directed to the sample through both objective lenses and caused to interfere within a section of the sample by adjusting optical path lengths. The observed light from both lenses is caused to interfere on the image detector by the same optical path length adjustment. .Iadd.In a fourth embodiment of the invention, further spatial structure is introduced into the illumination light. Computational processing is used to enhance lateral or XY resolution as well as depth or Z resolution..Iaddend.
Owner:RGT UNIV OF CALIFORNIA
Wavefront coding zoom lens imaging systems
InactiveUS6911638B2Quality improvementFast imagingPhotometry using reference valueBeam/ray focussing/reflecting arrangementsImaging processingOphthalmology
A wide-angle zoom lens with as few as two plastic elements codes the wavefront produced by the imaging system such that the imaging system is substantially invariant to aberrations related to misfocus. Signal processing is used to decode the wavefront to form the final image. A first type of zoom lens configuration uses as few as two lens elements. In this type, image processing may be modified to take into account the positioning of the lenses.
Owner:COLORADO UNIV OF RGT
Translating bifocal wear modality
ActiveUS20050099595A1Peptide preparation methodsOptical partsDiagnostic Radiology ModalityBoth lenses
The invention discloses a pair of bifocal contact lenses: one lens for dominant eye and one lens for non-dominant eye. Both lenses have an optical zone divided into a superior zone and an inferior zone. The superior zone of the lens for dominant eye is for distance vision correction while the inferior zone is for near or intermediate vision correction. The superior zone of the lens for non-dominant eye is for distance or intermediate vision correction while the inferior zone is for near or intermediate vision correction.
Owner:ALCON INC
Optical Self-Diagnosis of a Stereoscopic Camera System
ActiveUS20130120536A1Simple algorithmAvoids disadvantageImage enhancementImage analysisStereo imageImage sensor
The present invention relates to a method for the optical self-diagnosis of a camera system and to a camera system for carrying out the method. The method comprises recording stereo images obtained from in each case at least two partial images (2, 3) creating a depth image, that is to say a disparity map (5) given by calculated disparity values, determining a number of valid disparity values (6) of the disparity map (5), and outputting a warning signal depending on the number of valid disparity values determined. A device for carrying out such a method comprises a stereo camera (1) having at least two lenses (7,8) and image sensors, an evaluation unit and a display unit.
Owner:HELLA KGAA HUECK & CO
Adjustable focus lenses
A lens unit with two lens elements each having special surfaces such that an adjustment of the position of one of the two lens elements relative to the other in a direction generally perpendicular to a viewing direction changes the focusing power of the lens unit. In preferred embodiments two lens units are mounted in a frame to provide eyeglasses with adjustable focus. Several frame designs are described. In preferred embodiments two lens units, each lens unit having two lens elements are mounted in a frame to provide eyeglasses with adjustable focus. Several designs are described. Some designs provide for movement side to side movement of the lens elements relative to each other. In other designs the relative motion is up and down. A simple technique is a thumbscrew adjustment that is operated by the wearer. Another design is based on finger force against a friction force. In some preferred embodiments separate frames holding the lens elements pivot about pivot points on the earpiece of a support frame. In other designs two rear lens elements are mounted in a support frame and the front lens elements are mounted in a separate frame that pivots about a point on the earpiece of the support frame. Another design includes a torsion bar assures that the movements of each lens element in one of the lens units is the same as the movements of the lens elements in the other lens unit. Techniques for automatic focusing of the lenses are also disclosed. Techniques for automatic focusing of the lenses are also disclosed.
Owner:QUEXTA
U-cover camera phone
An active lens cover for a device, such as a smart phone with a dual lens camera. The camera lens that faces the user and the camera lens that faces away from the user are not directly behind each other, but are slightly offset. The active lens cover is advantageously in the shape of a “U”, which allows a single cover to be used to protect both lenses. The offset arrangement of the two lenses allows the facing lens be exposed by sliding the lens cover in one direction, and the away lens to be exposed by sliding the lens cover in the opposite direction. When the lens cover is slid to expose the facing camera lens, the camera phone automatically turns ON and enters a pre-selected operating mode. When the cover is slid in the opposite direction to expose the away camera lens, the camera phone automatically turns ON and enters another pre-selected operating mode. The housing of the U-cover includes at least one sensor that tells the device's CPU what hardware to activate. In the preferred embodiment, the user is able to seamlessly switch between transmitting a video feed from either camera during a telephone call.
Owner:MIRAMONTES IVAN
Face Protector Lens Assembly and Method of Use
A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The second lens extends across a wearer's eyes when the face protector is worn and the first lens has side portions which extend around at least part of the opposite sides of the face to provide peripheral vision. The lens assembly may be releasably secured in the face plate opening and one or both lenses may be interchangeable with sets of lenses having different properties such as lens shade.
Owner:MENTA PATENT PARTNERS LLC +1
Device and method for alignment of binocular personal display
ActiveUS8446340B2Improve alignment accuracyKeep it compactProjectorsCathode-ray tube indicatorsDisplay deviceComputer science
Owner:LUMUS LTD
U-cover camera phone
An active lens cover for a device, such as a smart phone with a dual lens camera. The camera lens that faces the user and the camera lens that faces away from the user are not directly behind each other, but are slightly offset. The active lens cover is advantageously in the shape of a “U”, which allows a single cover to be used to protect both lenses. The offset arrangement of the two lenses allows the facing lens be exposed by sliding the lens cover in one direction, and the away lens to be exposed by sliding the lens cover in the opposite direction. When the lens cover is slid to expose the facing camera lens, the camera phone automatically turns ON and enters a pre-selected operating mode. When the cover is slid in the opposite direction to expose the away camera lens, the camera phone automatically turns ON and enters another pre-selected operating mode. The housing of the U-cover includes at least one sensor that tells the device's CPU what hardware to activate. In the preferred embodiment, the user is able to seamlessly switch between transmitting a video feed from either camera during a telephone call.
Owner:MIRAMONTES IVAN
Translating bifocal wear modality
The invention discloses a pair of bifocal contact lenses: one lens for dominant eye and one lens for non-dominant eye. Both lenses have an optical zone divided into a superior zone and an inferior zone. The superior zone of the lens for dominant eye is for distance vision correction while the inferior zone is for near or intermediate vision correction. The superior zone of the lens for non-dominant eye is for distance or intermediate vision correction while the inferior zone is for near or intermediate vision correction.
Owner:ALCON INC
Imaging lens, imaging device, portable terminal, and method for manufacturing imaging lens
InactiveUS20100091387A1Positive optical powerEasy to assembleNanoopticsMountingsAbsolute differenceOptical power
An imaging lens (LN) includes one or two lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK1) disposed at the most object-side exerts a positive optical power, and a conditional formula defined by the absolute difference between the index of refraction of a first lens substrate (LS1) and the index of refraction of a lens (L[LS1o]) contiguous with an object-side substrate surface of the first lens substrate (LS) is fulfilled.
Owner:KONICA MINOLTA OPTO
Adjustable focus eyeglasses with pivot adjustments
InactiveUS7717552B2Minimize the differenceSpectales/gogglesAuxillary optical partsCamera lensAdjustable-focus eyeglasses
A pair of adjustable focus eyeglasses having two lens units with at least one of the lens units having at least two lens elements. A mechanism is provided to pivot, about a pivot location outside each of the two lens elements, the position of at least one of the two lens elements relative to the other lens element in an angular direction generally perpendicular to a viewing direction. Specially designed surfaces are chosen such that small angular adjustments of the relative positions of the two lenses around a common pivot position in angular directions perpendicular or approximately perpendicular to a viewing direction results in changes in the combined focus of the two lenses of the lens unit. Preferred embodiments include two lens units with the lens system defining pairs of adjustable focus eyeglasses.
Owner:QUEXTA
Eyeglasses with lens securing mechanism for facilitating removable lenses
InactiveUS20140300854A1RemovalEasy to disassembleSpectales/gogglesAuxillary optical partsCamera lensEyewear
Eyewear is provided, namely, sunglasses with an integral securing mechanism that enables the lenses to be removed and replaced as necessary. Each of the lenses may retained within the frame of the eyewear / sunglass device as by corresponding channels or recesses formed on each corresponding side of the sunglass frame. For separate lenses, a securing mechanism is provided for securing each of the lenses. In a mono lens configuration, a single securing mechanism may be used to secure both lenses. A securing mechanism is placed in a locked position to hold the lens(es) in place during use. The securing mechanism is placed in an unlocked position by sliding or shifting the securing mechanism, enabling removal of the lens(es). Various constructions can be adopted for maintaining the securing mechanism in the locked position, such as by frictional force, magnetic force, or combinations thereof.
Owner:MOUNTAIN SHADES
Convertible automatic stereo display device
InactiveCN101261369ALow costQuality improvementSteroscopic systemsOptical elementsDisplay deviceRefractive index
The invention discloses a convertible automatic stereoscopic display device, which comprises a image light source supply device, a polarized light conversion device and a lens component; the image light source supply device is used for providing a linear polarized light source for images; the polarized light conversion device can directly transmit the incident linear polarized light source without rotation or rotate the incident linear polarized light source into a polarized light vertical to the polarization direction during incidence with control; the emergent light is incident to the lens component; the lens component comprises a single refractive index lens and a birefractive index lens, and a composite lens is formed by the single refractive index lens and the birefractive index lens; both lenses comprise a plane part and a curved surface part corresponding to the plane part; the curved surface parts of the two lenses are matched with each other; the composite lens is presented as a convex lens for one of the two polarized lights of the polarized light conversion device with or without rotation, and a plate lens for the other. The convertible automatic stereoscopic display device has the advantages that, the technical proposal is easy to be realized; the conversion time is short, and the quality is high.
Owner:北京超多维科技有限公司
Binocular camera calibration method and device, unmanned aerial vehicle and storage medium
ActiveCN110197510ASimplify the calibration processImprove calibration efficiencyImage analysisCamera lensBinocular distance
Owner:GUANGZHOU XAIRCRAFT TECH CO LTD
Portable Diopter Meter
InactiveUS20140176909A1Easily hold deviceEasily and quickly screenEye diagnosticsRefractive errorMedical prescription
An inexpensive, easy-to-use self-refracting device which adjusts to continuously variable prescription corrections for a patient. In preferred embodiments specially designed gear arrangements, controlled by control knobs, moves one lens relative to the other or both lenses relative to each other in directions perpendicular to the viewing direction. The patient turns the device's knobs until vision is clearest. Once the patient adjusted the device for best vision, the patient's prescription can be read off various scales on the device. The diopter meter, therefore, can be used to easily and quickly screen for refractive error problems by allowing patients to self-adjust power and, if refractive error is present, see for themselves how much better they could see with corrective glasses.
Owner:SPIVEY BRETT +1
Method for evaluating binocular performance of spectacle lenses, method for displaying binocular performance, and apparatus therefore
To enable evaluation of the binocular performance of spectacle lenses and display of the result of the evaluation, a method and an apparatus for evaluating and indicating the binocular performance of spectacle lenses. Binocular performance indexes indicating the binocular performance of the spectacle lenses to an object point within a visual field when it is observed through specific positions on both lenses are defined. For all object points in the visual field, the binocular performance indexes are derived. An image of the visual field, in which each pixel is assigned a monochromatic luminosity or a set of primary RGB color luminosity according to the value of the binocular performance index for viewing the corresponding object point, is created and displayed.
Owner:DANA AUTOMOTIVE SYST GRP LLC +1
Method and device for unfolding steel ball surface based on multi-image sensor
ActiveCN102288620AOvercome slippageSliding situation solvedMaterial analysis by optical meansCamera lensMulti-image
The invention relates to a method and a device for unfolding the surface of a steel ball on the basis of multiple image sensors. In the method, a linear guide rail is provided; the linear guide rail has gradient; two symmetrical image sensors with the same structure are arranged above two sides of the axis of the linear guide rail respectively and are used for adjusting two image sensor parameters and two camera lens optical parameters to be consistent; the tested steel ball is arranged on the linear guide rail with a groove; the tested steel ball does one-dimensional motion along the linear guide rail with the groove under the force gravity; and when the tested steel ball passes through the downsides of the image sensors, the two image sensors perform continuous image sampling on the tested steel ball. The device comprises the linear guide rail, two brackets and two image sensors, wherein the linear guide rail has gradient and is formed by the groove and arranged in the middle of a workbench; the two brackets are symmetrically arranged at two ends of the workbench and positioned on two sides of the linear guide rail; the top ends of the two brackets are provided with one image sensor respectively; and the camera lenses of the two image sensors correspond to the central axis of the bottom of the linear guide rail. By the method and the device, the surface of the steel ball canbe unfolded at high speed and precisely.
Owner:TIANJIN UNIV
Adjustable display stereoscope
InactiveUS20050243418A1Wide appealEasy to usePicture changing apparatusViewersOphthalmologyPupillary distance
A stereoscopic display system (10) comprising a pair of convergent lenses (14) and a sheet of resilient, transparent material (12) formed into a picture holder (18) and a lens holder (20) joined by a base (16) that holds them erect and parallel for viewing a stereoscopic image pair mounted in the picture holder through the lenses mounted in the lens holder. A median slot (21) extending through the lens holder into an adjacent portion of the base divides these sections into two lens support arms (31) and provides an intervening space shaped to accommodate the viewer's nose and to maintain a clearance space for the resilient approximation of the lens support arms. Adjustments for focus, diopter, interpupillary distance, and stereofield separation and vertical alignment, are made by flexing the lens support arms collectively and differentially in longitudinal and transverse directions. The picture holder is adapted to durably or transiently hold stereograms of various sizes and formats, in the form of prints, transparencies or slides, LCDs or other thin image support media. A second picture can be displayed on the reverse side of the picture holder. The lens holder can accept replacement optics for optics for customization to the user's vision requirements and can be adapted for durable setting of interocular distance.
Owner:LA WILLIAM H T
Multifunction dual lens matching device for stereoscopic 3D camera system
InactiveUS20070140673A1Stereoscopic photographySteroscopic systemsComputer graphics (images)Stereo cameras
This invention is for target remapping, telecentricity compensation, and a new PID motion control algorithm to align and control to a very high tolerance multiple functions to two lenses simultaneously in a stereoscopic 3D camera system. To control two lenses in a 3D camera rig such that they match as closely as possible in “actual” positions, a new error variable is calculated, based on the difference between the “actual” positions of both lenses. This is added to the PID formula, as a new statement, with a new coefficient, which we call the PID3D algorithm.
Owner:3ALITY DIGITAL SYST
Eyeglasses
ActiveUS8905539B2Extended service lifeImprove efficiencySpectales/gogglesAuxillary optical partsEngineeringBoth lenses
A pair of eyeglasses includes a frame, two lenses, two first magnets, two temples, and two fasteners. The frame includes two lens-holding portions and two magnet-seats. The lenses are held by the lens-holding portions, respectively. The first magnets are disposed at the magnet-seats respectively. The temples are connected with two sides of the frame respectively. The fasteners, each having a second magnet, are pivoted on the frame, and are rotatable with respect to the frame, so that the respective first magnet and the respective second magnet attract each other to fix the respective lens.
Owner:CHEN LIN YUN
Automati focus adjusting mechanism of camera
InactiveCN1517775ASave spaceLow costProjector focusing arrangementCamera focusing arrangementEngineeringBoth lenses
An automatic focusing mechanism of camera is composed of external frame including the hollow first cylinder with a circular hole, the first lens fixed to external frame and arranged coaxially with said circular hole, coil surrounding the first cylinder, the hollow second cylinder containing the first cylinder in it for relatively and coaxially moving, the second lens fixed in the second cylinder and coaxial with said circular hole, and an elastic part for linking the first cylinder with the second one. When a current flows through said coil, the second focus distance between both lenses is generated. If there is no current, the first focuse distance is held.
Owner:YUDONG PLASMA TECH
Device and process for progressive addition lens design
A progressive addition lens design device for designing progressive addition lenses to permit a patient to experience a variety of distance vision fields and reading vision fields. The device includes a frame adapted to hold in place in front of each of a patient's eyes three lens mounts, each lens mounts being adapted for adjustment in rotation and side-to-side translation. A third lens displaying the patient's base prescription mounted in one of the lens. A first and second lens is mounted in the other two lens mounts. The first and second lenses, each have a transition zone and a power ramp zone and they have complementary surfaces so that when stacked together they create a standard progressive addition lens with a distance vision field, a reading vision field and transition region. When the first and second lenses are moved relative to each other the locations of the distance vision field, the reading vision field and the transition region are adjusted allowing the patient to experience a variety of distance vision fields, reading vision fields, and transition regions
Owner:SPIVEY BRETT +1
Imaging System For Digital Stereo Microscope
ActiveUS20140240457A1Eliminate horizontal parallaxImprove versatilityMicroscopesStereoscopic photographyCamera lensRgb image
An imaging system for digital stereo microscope is disclosed, wherein the system comprising two camera units with each camera unit comprises a lens and the two lenses of the two camera units are focused below the respective lens and optical axes of both lenses are arranged to focus at a same point; a main controller configured to provide both sensors with a common trigger signal for outputting image data and a common pixel reference clock signal for each sensor to generate its own pixel clock signal; a synchronous synthesizer for generating synthesized image data with left eye image data located on the left side and the right eye image data located on right side by synchronizing and synthesizing the left eye data and the right eye image data output by the respective sensor; the synthesized image data is compresses and encoded in the main controller to generate RGB image data corresponding to parallel image data; a stereoscopic display convertor for receiving the RGB image data and converting the received RGB image data into a format that is recognizable by a stereo display.
Owner:GUANGZHOU JINGHUA PRECISION OPTICS CO LTD
Auxiliary eyeglasses with two aligned springs for biasing two lens units to move relative to each other
InactiveUS20050206838A1Not to mar appearanceSmall diameterAuxillary optical partsNon-optical partsCamera lensBoth lenses
A pair of auxiliary eyeglasses is attached to a pair of primary eyeglasses, and has a bridge including a rigid connecting tube that is disposed between two lens units. Two movable rods are connected respectively to the lens units, extend respectively through two open ends of the connecting tube, are movable within the connecting tube, and engage respectively and fittingly the non-circular holes in the inward flanges so as to prevent rotation of the movable rods relative to the connecting tube. The auxiliary eyeglasses further include two coiled compression springs, each of which is disposed between the outward flange of a respective one of the movable rods and a respective one of the inward flanges of the connecting tube so as to bias the movable rods to move toward each other.
Owner:EVERGREAT OPTICAL IND
Collecting lens
A system and method for collimating light emitted from a light source, such as a light-emitting diode (LED), is provided. The system and method includes two lenses, both lenses having a positive power for converging the light rays. In one example, the first lens is a hemispherical ball lens and the second lens is configured such that one surface conforms to the exiting surface of the first lens. The exiting surface of the second lens may be, for example, a Fresnel lens or an aspherical lens. In another example, the first lens may be a hemispherical or a hyperhemispherical ball lens. The second lens has an outer circumference having two aspherical surfaces. The inner portion of the second lens is in direct contact with the first lens. This configuration creates a dual-channel collimator.
Owner:TEXAS INSTR INC
Progressive enhanced visual field prism
InactiveUS7789508B2Easy constructionEasy to useAuxillary optical partsEye diagnosticsUses eyeglassesVisual field loss
The enhanced visual field prism optical apparatus includes a pair of eye glasses frames having the users prescription provided therein, if needed, and an enhanced field prism rotatably supported in front of at least one of the lenses of the frames. For binocular vision, a prism is rotatably supported in front of both lenses of the frames.
Owner:PADULA I WILLIAM V +2
Personalized eyeglasses
Owner:HUANG MING CHUAN
Digital still camera module
InactiveUS20050024521A1Small sizeLow costTelevision system detailsColor television detailsCamera lensGlass cover
A digital still camera module includes a barrel (12) two lenses (10, 18), an aperture apparatus (16) having a transparent part, a filter (14) set on the transparent part of the aperture, and an image sensor (19). The lenses, the filter, the aperture apparatus and the image sensor are set in the barrel, with the image sensor being set at a bottom of the barrel, and the filter and the aperture apparatus being set below one of the lenses. Both lenses are upwardly convex. The encapsulation of the image sensor is by way of a CSP (Chip Scale Package), which includes a transparent glass cover (196). Pins extend down from a bottom of the image sensor, which enables a size of a circuit board (194) of the image sensor to be reduced. Thus the digital still camera module is relatively small and inexpensive, and has excellent optical capability.
Owner:HON HAI PRECISION IND CO LTD
Image output method and camera
ActiveCN111131687AReduce manufacturing costReduce in quantityTelevision system detailsColor television detailsOphthalmologyOptical axis
The embodiment of the invention provides an image output method and a camera. The camera comprises a first lens, a second lens, a first reflector, a second reflector and an image sensor, wherein the focal length of the first lens is different from the focal length of the second lens, and in the first reflector and the second reflector, the first reflector is closer to the image sensor; the opticalaxis of the first lens is parallel to that of the second lens; when the first reflector is located at a working position, the image sensor receives an image which is collected by the first lens and reflected by the first reflector; and when the first reflector is located at a non-working position and the second reflector is located at a working position, the image sensor receives an image which is collected by the second lens and reflected by the second reflector. According to the camera, one image sensor can alternately receive images collected by two lenses through the first reflector and the second reflector, so that the number of the image sensors in the camera can be reduced, and the production cost of the camera can be saved.
Owner:HANGZHOU HIKVISION DIGITAL TECH
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