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40 results about "Guided ray" patented technology
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A guided ray (also bound ray or trapped ray) is a ray of light in a multi-mode optical fiber, which is confined by the core. For step index fiber, light entering the fiber will be guided if it falls within the acceptance cone of the fiber, that is if it makes an angle with the fiber axis that is less than the acceptance angle, θ<arcsin(√(nₒ²-nc²)) , where θ is the angle the ray makes with the fiber axis, before entering the fiber, nₒ is the refractive index along the central axis (core) of the fiber, and nc is the refractive index of the cladding.
Oct probe
InactiveUS20090190883A1Avoid ghostingAvoid it happening againMaterial analysis by optical meansCatheterLight beamLight source
An OCT probe has a sheath to be inserted into a subject; and an optical system within the sheath, for changing the direction of light which propagates from a light source through an optical fiber to irradiate the light onto the subject through a transparent portion of the sheath, and for reflecting the light beam, which is reflected by the subject, to guide the light into the optical fiber. A light output surface, for causing the light to be output from the reflecting surface in a direction obliquely inclined with respect to the inner surface of the sheath, and a reflected light sheath entrance preventing portion, for preventing light reflected by the inner surface of the sheath from entering the optical fiber, are provided in the optical system. The reflected light sheath entrance preventing portion may be formed by providing a cut planar surface portion on the lens.
Owner:NAMIKI PRECISION JEWEL CO LTD
Optical system
InactiveUS6459485B1Angle measurementPhotometry using reference valueCamera lensLiquid-crystal display
An optical system used in an optical measuring apparatus for measuring optical characteristics of, for example, a liquid crystal display panel (LCD panel) guides rays emitted from the LCD panel and having exit angles equal to or smaller than a predetermined maximum exit angle alpha. A lens of the optical system satisfies the following two equations.Hereupon, the symbol "f" designates a focal length of the lens; the symbol "h" designates the maximum height of the photosensitive plane of the photosensor from an optical axis of the lens on the photosensing plane; the symbol "L" designates a distance from a principal point of the lens in the image side to the photosensing plane; and the symbol "H" designates the maximum height of the object from the optical axis of the lens.
Owner:MINOLTA CO LTD
In-process vision detection of flaws and FOD by back field illumination
InactiveUS20060108048A1Simple processMinimize timeLamination ancillary operationsInvestigating composite materialsForeign matterForeign object
A flaw and foreign object debris (FOD) detection system (11) for use during fabrication of a structure (12) includes an illumination device (13). The illumination device (13) is configured to be in proximity with a fabrication system (10) and illuminates a portion (18) of the structure (12). The illumination device (13) directs light rays (16) at acute angles relative to the portion (18). A detector (14) monitors the portion (18) and detects FOD in the portion (18) during fabrication of the structure (12) in response to the reflection of the light rays (16) off of the portion (18).
Owner:THE BOEING CO
Optic System for Light Guide with Controlled Output
InactiveUS20110267838A1Easy to controlEffective lightingPlanar/plate-like light guidesIdentification meansLight guideOptoelectronics
A light guide with optics guides light exiting the guide. The device achieves accurate control of the reflected light by extracting light from a limited area of the light guide. The configuration of the reflectors used for the selective extraction determines the nature of the output light. The reflectors may be located on a side of the light guide opposite to an output side of the light guide.
Owner:RAMBUS DELAWARE
Flexible optical illumination system
InactiveUS20070243844A1Low costShorten the timePlanar/plate-like light guidesRadio transmissionLight beamLighting system
A flexible optical illumination system may be used to illuminate components or areas of an electronic device such as mobile and portable communication devices. The flexible lightguide may manipulate and channel light selectively throughout an electronic assembly providing illumination for selective areas or an entire device. The lightguide may further include various filters and components for modifying, detecting and processing light and characteristics thereof. A flexible lightguide may be created from numerous optically transparent materials and processes such as film lamination, adhesive binding and molding. The lightguide may be created by a process that combines the manufacturing and assembly of the lightguide with the manufacturing and assembly of other components of the device. The lightguide may further be integrated into various mechanical or electronic components. The illumination system may also be used in different applications including decoration, illumination, alarms, message transfer and data transfer.
Owner:NOKIA CORP
Light guide with decoupling portion and shield for collecting decoupled rays
The invention discloses a light guide with a decoupling portion and a shield for collecting decoupled rays. The light guide comprises an external surface forming a guiding diopter. The light guide is suitable for guiding light rays by reflection on the guiding diopter. The light guide comprises at least one decoupling portion (1030), with a refraction decoupling diopter (1034) arranged so as to refract light rays to decouple them from the light guide, and thus transmit them out of the light guide through the refraction decoupling diopter.
Owner:VALEO VISION SA
Resample and composite engine for real-time volume rendering
InactiveUSRE42638E1Speed up the processReduce in quantityDetails involving image processing hardwareSteroscopic systemsInternal memoryVoxel
The present invention is a digital electronic system for rendering a volume image in real time. The system accelerators the processing of voxels through early ray termination and space leaping techniques in the projection guided ray casting of the voxels. Predictable and regular voxel access from high-speed internal memory further accelerates the volume rendering. Through the acceleration techniques and devices of the present invention real-time rendering of parallel and perspective views, including those for stereoscopic viewing, are achieved.
Owner:RUTGERS THE STATE UNIV
Light guide, especially for signal lamps of motor vehicles
The light guide, especially for motor vehicle signal lamps, comprises a collimator with a collimating wall for binding and routing light rays, and a light guiding body that continues the collimating wall, is of a material with refractive index (n), and is integral, spatially shaped, planar, and fitted at its end with an output emitting surface providing a signal light function. The first height (d) of the body at its beginning where it adjoins the collimating wall, is bigger than its second height where it passes into the emitting surface. The body is adapted to emit light rays generally within angle (ω) of diffusion from the optical axis (x), and comprises a transitional surface that is, in its profile towards the emitting surface, inclined towards the longitudinal axis of the profile. The ratio of inclination height (a) and inclination length (b) of the transitional surface is defined as:ab=tg(12arcsin(sinωn))
Owner:PO LIGHTING CZECH SRO
Light-guiding optical unit for a light device of motor vehicles
The light-guiding optical unit (1) for a light device of motor vehicles comprises a light guide (2) that comprises at least one routing surface (3), and at least one light source (4) to generate light rays (10). The light-guide (2) further comprises a top surface (12) at least a part of which is constituted by the output surface (15), and a bottom surface (13) opposite the top surface (12) and fitted with a prismatic structure (16) comprising reflective surfaces (7). The routing surface (3) and the reflective surfaces (7) are mutually arranged in such a way that the routing surface (3), by means of routing by refraction on this surface (3) or reflection from this surface (3), directs light rays (10) to the prismatic structure (16) in such a way that it directly lights up only the reflective surfaces (7) with the light rays (10), the reflective surfaces (7) being configured to direct light rays (10) that have fallen onto them this way directly from the routing surface (3) to the output surface (15) in such a way that the light rays (10) can exit from the light guide (2) through the output surface (15).
Owner:PO LIGHTING CZECH SRO
Lighting unit for a light device of a motor vehicle and a light device with the lighting unit
The lighting unit (3) comprises a light guide (15) to lead light rays (10) from at least one light source (11) wherein the light guide (15) comprises the front surface (17) and the opposite rear surface (18). The front surface (17) comprises exit areas (30) for the exit of light rays (10) from the light guide (15), and intermediate areas (19) positioned between the exit areas (30) and configured for total reflection of light rays (10) passing along the light guide (15). The lighting unit (3) further comprising a light assembly (23) situated against the front surface (17) of the light guide (15) and comprising optical elements (26) containing a bearing area (14) with which the optical elements (26) are connected to the opposite exit areas (30) directly or indirectly in such a way that transitional layers (24) are situated between the exit areas (30) and bearing areas (14). The optical elements (26) are configured to bind light rays (10) falling onto the exit areas (30) and to emit them from the exit surface (29) of the optical elements (26) averted from the light guide (15), in a predetermined direction or directions.
Owner:VARROC LIGHTING SYST SRO
Prism total reflection double-lens common-chip module
InactiveCN108415216AReduce imaging errorsReduce processing costsTelevision system detailsColor television detailsCamera lensOptical axis
The invention discloses a prism total reflection double-lens common-chip module. The module comprises two sets of lens modules distributed in left-right symmetry and provided with superposed optical axes, a triangular prism set arranged between the two sets of lens modules, and an image sensor arranged below the triangular prism set, the triangular prism set is formed by two isosceles right-angledtriangular prisms arranged in symmetry, the two isosceles right-angled triangular prisms respectively comprise an incident plane located in a vertical direction and opposite to the orientation of thelens modules, the isosceles right-angled triangular prism comprises an emitting plane vertical to the incident plane and towards the image sensor, an inclined plane of the isosceles right-angled triangular prism is a reflection plane, lights enter the prism total reflection double-lens common-chip module from the two sets of lens modules and are projected to the same image sensor in a steering manner after total reflection of the two isosceles right-angled triangular prisms, and the imaging error is effectively reduced. In addition, light reflection is guided by employing two triangular prisms arranged in symmetry, plating processing of working surfaces of the triangular prisms is avoided, and the process cost of products is reduced.
Owner:JCD GUANG ZHOU OPTICAL
Optical sensing device for detecting ambient light in motor vehicles comprising a prism structure having a plurality of prisms designed to direct rays of a specific ambient light beam
InactiveUS9546900B2Easy to manufactureCompact shapePrismsBeam/ray focussing/reflecting arrangementsLight beamPrism
Owner:TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH & CO KG
Novel method for installing exterior sun-shading shutter window
InactiveCN102839904AReduce the risk of workImprove wind resistanceDoor/window protective devicesDrive shaftWindow opening
The invention discloses a novel method for installing an exterior sun-shading shutter window, which comprises the steps of: 1) determining the position of installing a special guide rail depending on the size of a window opening; 2) fixing end bases at two ends of the special guide ray; 3) integrally fixing a driving motor and a transmission shaft in the end bases; 4) determining the opening of the maximum travel of the exterior sun-shading shutter upward and downward, and fixing a stop block; 5) debugging the driving motor to avoid the blockage of a curtain piece in the rotating process; 6) regulating the stop block once again depending on the opening and the closing positions; 7) repeatedly operating until the opening and closing are stable, fixing a shaping box; 8) filling a clearance between the special guide rail and the wall surface as well as the clearances between two ends of the shaping box and the window opening by sealing glues; and 9) cleaning the working field. The method is simple and convenient, and is unnecessary to construct on the exterior wall of the high-rise building, therefore, the working danger of the constructor in the high-rise building is reduced, and the anti-wind performance of the shutter window is improved; and the installation cost is reduced, and the maintenance is convenient.
Owner:JIANGSU AIWO ENERGY SAVING TECH
Lighting device and a luminaire
ActiveUS11015765B2Less producedMechanical apparatusLight source combinationsTotal internal reflectionLight guide
A lighting device (100) for use in a luminaire (200) comprising: —a base (101) having a longitudinal axis (LA) and comprising an electrical connector (102) for connecting the lighting device (100) to a luminaire socket (201) of the luminaire (200), —at least one LED-filament (103) comprising a substrate (104) having an elongated body and a plurality of light sources (105) mechanically coupled to the substrate (104), the plurality of light sources (105) configured for emitting light (106) in a first spatial light distribution, —at least one light guide (107) having an elongated body, comprising at least one light in-coupling portion (108) at at least on the external periphery of the at least one light guide (107) for coupling light (106) into the at least one light guide (107), a plurality of light out-coupling portions (109) for coupling light (106) out of the at least one light guide (107) in a second spatial light distribution, —an at least in part light-transmissive envelope (110) at least partly encapsulating said at least one LED-filament (103) and said at least one light guide (107), —wherein the at least one light guide (107) is arranged for guiding the light (106) coupled into the at least one light guide (107) at the at least one light in-coupling portion (108) via total internal reflection (111) to the plurality of light out-coupling portions (109), —wherein the at least one LED-filament (103) is external to the at least one light guide (107).
Owner:SIGNIFY HLDG BV
Total reflection lens
InactiveCN101561114BHeat dissipation fastFully stimulate lighting performanceSemiconductor devices for light sourcesLensLight transmissionLight source
The invention provides a total reflection lens. The total reflection lens is a conical light transmission body with a wide upper part and a narrow lower part and is provided with a through hole which can be used as a light incidence lens surface along a central axis; the upper end of the through hole is connected with an externally extended conical hole, and the through hole can be used as a lightemergence lens surface; one or more open grooves are arranged at the externally extended conical hole so that when a light source is arranged at the through hole of the total reflection lens, the most concentrated strong light in the center can expand the light distribution angle at the through hole and the externally extended conical hole, and the side light at the peripheral ring of the light source can be led to the externally extended conical hole and is emitted from the same through the reflection of the light incidence lens surface and the outer conical surface of the total reflection lens so as to increase the light focusing effect, the light emitting strength and the ray light with extremely high uniformity in an illumination region. The total reflection lens can ensure that the light ray can be emitted from the open grooves; and in addition, the total reflection lens has the function of leading ray for side illumination.
Owner:GENIUS ELECTRONICS OPTICAL CO LTD
Holographic information recording and/or reproducing apparatus
InactiveUS8018813B2Improve efficiencyRecord information storageOptical beam guiding meansOptoelectronicsSignal light
A holographic information recording and / or reproducing apparatus including: a light source unit emitting reference light and signal light; a first optical path guiding unit guiding the lights to cross; a second optical path guiding unit including a first polarization converter located on an optical path of one of the reference and signal lights, a first polarization beam splitter located at a crossing point of the reference light and the signal light, an optical path converter guiding the reference light and the signal light so that they cross again, a second polarization converter located on an optical path of the signal light before the signal light crosses the reference light, and a second polarization beam splitter uniting the optical paths of the reference light and the signal light; and an objective lens unit illuminating the reference light and the signal light onto one side of a holographic information storage medium.
Owner:SAMSUNG ELECTRONICS CO LTD
Positioning structure of plane image input apparatus
InactiveUS20050167579A1Improve accuracySolid-state devicesInvestigating moving sheetsOptical ModuleDocument preparation
Owner:MULLER CAPITAL
Light guide, especially for signal lamps of motor vehicles
The light guide, especially for motor vehicle signal lamps, comprises a collimator with a collimating wall for binding and routing light rays, and a light guiding body that continues the collimating wall, is of a material with refractive index (n), and is integral, spatially shaped, planar, and fitted at its end with an output emitting surface providing a signal light function. The first height (d) of the body at its beginning where it adjoins the collimating wall, is bigger than its second height where it passes into the emitting surface. The body is adapted to emit light rays generally within angle (ω) of diffusion from the optical axis (x), and comprises a transitional surface that is, in its profile towards the emitting surface, inclined towards the longitudinal axis of the profile. The ratio of inclination height (a) and inclination length (b) of the transitional surface is defined as:ab=tg(12arcsin(sinωn))
Owner:PO LIGHTING CZECH SRO
Patrol belt
PendingCN114158807AImprove discovery rateSolve the problem of not seeing the road under your feetNon-electric lightingPoint-like light sourceHuman bodyLight equipment
The invention relates to a patrol belt, which belongs to the technical field of illumination, and comprises a belt body and an illumination device arranged on one side of the belt body far away from a human body, the illumination device comprises a plurality of soft lights arranged along the length direction of the belt body, a power supply connected with the soft lights, and a control switch for controlling the soft lights to be turned on and off, a light shielding plate which is arranged obliquely downwards is arranged above the soft light to shield light rays irradiating upwards, and the upper end of the light shielding plate is connected with the waistband body. According to the invention, the light demand required by path finding is separated from the traditional strong light equipment, and the light shielding plate is used for guiding the light irradiation range, so that the light only illuminates the area below the human body, and the problem that the human body cannot see the path under the feet due to the darker light area and the large light and shade difference area is solved; in addition, damage to the vision of a user is avoided, and meanwhile the problem that work of other people is affected due to the fact that the light intensity is too high is solved.
Owner:重庆赛迪工程咨询有限公司
Waveguide element
ActiveCN111742252ASolve some related problemsReduce calculationDiffraction gratingsPlanar/plate-like light guidesTotal internal reflectionWaveguide
The invention provides a waveguide element comprising a waveguide (100) capable of guiding light rays in two dimensions via total internal reflections, and a diffractive optical element (DOE) (120) arranged on or within the waveguide (100), wherein the diffractive optical element (120) is adapted to allow propagation of light rays inside the waveguide (100) along the two dimensions so that the light rays can propagate at least from one first location (140) of the diffractive optical element (120) to at least one second location (150) of the DOE (120) along different routes (160A, 160B) havingthe same geometrical optical path length. The DOE (120) is further adapted so that at least for one wavelength range the difference in physical optical path lengths for light rays having propagated along the different routes (160A, 160B) is longer than the coherence length, so that the rays sum incoherently at the second location (150).
Owner:DISPELIX OY
Timepiece comprising a movable element provided with a luminous index
ActiveUS20200192294A1Easy to useEasy to solveVisual indicationElectric indicationLight guideLight beam
The invention concerns a timepiece (1), notably a diver's watch, comprising a case (2) provided with a case middle (3), a light source (6), an element (4) movable between several positions relative to the case (2), and movable means for assembling the movable element (4) on the middle part (3) of the case (2). More particularly, the movable element (4) includes a light guide (10) and an upper cover (9) comprising an index (5), the guide (10) being configured to receive a light beam (8) from the light source through an entry face (12), and to guide light rays (18) through an exit face (15) of the light guide (10) in order to illuminate the index (5), whatever the position of the movable element (4) relative to the case (2).
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
A device for determining bedbug activity and a method for detection of bedbugs
InactiveUS20220206180A1Geological detection using milimetre wavesOptical detectionPhotophoreControl cell
A device (10) for determining bedbug activity comprises a housing (11) with openings (13), an insect detection zone (42) and pathways through the housing (11) that are traversing the insect detection zone (42). The device (10) has a light emitter (83) configured to direct light through the insect detection zone (42), an optical sensor (84) and a control unit. The light emitter (83) and re) the optical sensor (84) are arranged at a proximal end (43) of the insect detection zone (42) and a reflective surface is arranged at a distal end (44) of the insect detection zone (42). The optical sensor (84) is configured to receive light from the light emitter (83) via the reflective surface. The control unit controls the light emitter (83), the optical sensor (84) and the detection of bedbugs passing through the insect detection zone (42). A method for detection of bedbugs are presented.
Owner:IOT TELLTALES AB
Strip detecting apparatus
PendingCN113390869AReduced misinterpretationImprove detection accuracyImage enhancementImage analysisImaging processingLight guide
Owner:林裕城
Flight indication apparatuses, systems and associated methods
Systems, apparatuses and methods for indicating a moveable device such as an UAV (20) are disclosed herein. The present technology provides an illumination system (200, 200a, 300, 400, 500) having a light source (201, 201a, 301, 601) and an illuminating component (203, 203a, 403, 503, 603). The light source (201, 201a) is carried by a UAV (20) and positioned to emit a light ray in a first direction (D1). The illuminating component (203, 203a, 403, 503, 603) is carried by a propeller (29, 39, 49, 59, 69) of the UAV (20). The illuminating component (203, 203a, 403, 503, 603) can include a lightentrance portion (403a, 503a, 603a), a light transmission portion (403b, 503b, 603b), and a light exit portion(403c, 503c). The light entrance portion (403a, 503a, 603a) is positioned to receive the light ray from the light source (201, 201a, 301, 601), the light transmission portion (403b, 503b, 603b) is positioned to transmit the light ray to the light exit portion(403c, 503c), and the light exit portion(403c, 503c) is positioned to direct the light ray in a second direction(D2) so as to form a visual indication corresponding to the UAV(20).
Owner:SZ DJI TECH CO LTD
Davinci robot positioning infrared ray track positioning system
ActiveCN110063793AReduce adverse effectsAdverse effects will notSurgical navigation systemsComputer-aided planning/modellingInfraredElectricity
The invention belongs to the field of positioning devices for medical apparatuses and instruments, and particularly discloses a Davinci robot positioning infrared ray track positioning system. The system comprises a projection structure arranged at the top of an operation room, a control module for controlling the projection structure and a positioning feedback structure; the positioning feedbackstructure is installed on a Davinci robot, and the positioning feedback structure comprises an indicator lamp electrically connected with the positioning feedback structure; the projection structure comprises an image imaging structure, a projection lamp, a guiding ray and an infrared ray positioning emitting device. The projection lamp can perform projection on the ground of the operation room through the image imaging structure; the control module stores database information. The system can automatically generate relative positioning information of the Davinci robot and an operating bed during operation, the Davinci robot is guided for performing positioning, positioning is accurate, and workloads are saved.
Owner:THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
Light guide structure, light-emitting device, therapeutic apparatus, beauty mask and comprehensive treatment system
ActiveCN108635678AEffective divergenceEffective guidanceLight therapyOptical light guidesLight treatmentLight guide
The invention relates to a light guide structure, and relates to the technical field of optics. The light guide structure comprises a first light guide and a plurality of second light guides. The first light guide comprises a first light guide section and a second light guide section which are connected. A plurality of second light guides are respectively arranged at two ends of the first light guide in the width direction, one end of the second light guide is connected with the first light guide section, the other end of the second light guide is connected with the second light guide section,and the middle part of the second light guide is arranged at intervals with the first light guide. The first light guide and the second light guide are laid along a plane or a spherical surface, andboth the first light guide and the second light guide are made of light guide material, which can carry out divergent guidance on the light, promote the full dispersion of the light in the whole lightguide structure, and help to guide the light to carry out orienteering distribution and accurate emission. A light-emitting device, a therapeutic apparatus, a beauty mask and a comprehensive treatment system are further prepared on the basis of the light guide structure, and further contributions are made to the light treatment and the illumination.
Owner:夏云程
Laser base and laser
PendingCN113381290ADivergence angle reduction or collimationFast convergenceOptical wave guidanceLaser detailsDivergence angleErbium lasers
The invention provides a laser base and a laser. The laser base comprises a substrate, baffles and a lens, wherein the baffles are arranged on the periphery of the substrate, and the substrate and the baffles are connected to form an accommodating cavity for placing a laser chip; the substrate is provided with a strip-shaped waveguide structure on one side of the accommodating cavity, and one of the baffles is provided with a light outlet hole corresponding to the strip-shaped waveguide structure; the lens is arranged at the light outlet hole; the strip-shaped waveguide structure is parallel to the extension direction of the substrate, and the strip-shaped waveguide structure is configured to guide light; the lens is configured to collimate light rays radiated by the laser chip or narrow the divergence angle of the light rays; or the lens is configured to focus the light incident from the outside. The strip-shaped waveguide structure is arranged on the substrate to guide the light, the light outlet hole is formed in the baffle, and the lens is arranged at the light outlet hole, so that the divergence angle of the light can be reduced or collimated, and the incident light can be condensed.
Owner:芯峰光电技术(深圳)有限公司
Light-conductive optical system, especially for a light device of a vehicle
Owner:PO LIGHTING CZECH SRO
Flight indicating device, system and related method
Systems, devices, and methods for instructing mobile devices, such as unmanned aerial vehicles (UAVs) (20), are disclosed herein. The technology provides a lighting system (200, 200a, 300, 400, 500) having a light source (201, 201a, 301, 601) and a lighting component (203, 203a, 403, 503, 603). A light source (201, 201a) is carried by the UAV (20) and emits light in a first direction (D1). The lighting components (203, 203a, 403, 503, 603) are carried by the propellers (29, 39, 49, 59, 69) of the UAV (20). The lighting part (203, 203a, 403, 503, 603) may comprise a light incident part (403a, 503a, 603a), a light transmitting part (403b, 503b, 603b) and a light emitting part (403c, 503c). The light incident part (403a, 503a, 603a) receives light from the light source (201, 201a, 301, 601), the light transmission part (403b, 503b, 603b) transmits the light to the light exit part (403c, 503c), and the light exits A portion (403c, 503c) directs light in a second direction (D2) to form a visual indication corresponding to the UAV (20).
Owner:SZ DJI TECH CO LTD
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