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200 results about "Low vision" patented technology

Intraocular devices and associated methods

Visual aids and associated methods for improving the eye sight of low vision patients are provided. Generally, the devices of the present disclosure address the needs of age-related macular degeneration (AMD) and other low vision patients by providing a magnified retinal image while keeping a large visual field of view. Further, the devices of the present disclosure allow direction of the magnified retinal image away from damaged portions of the retina and towards healthy, or at least healthier, portions of the retina. The devices of the present disclosure are also configured for implantation within the eye using minimally invasive surgical procedures. Methods of utilizing the devices of the present disclosure, including surgical procedures, are also provided.
Owner:ALCON INC

Enhancing the performance of near-to-eye vision systems

The majority of applications for head mounted display (HMD) users, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc. yield a conflicting set of tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Further, individual users' needs vary as do their needs with the general task at-hand, visual focus, and various regions-of-interest within their field of view. To address these issues, it is necessary to provide a high performance optical system, eyepiece design, and system features which overcome these limitations.
Owner:ESIGHT CORP

Low vision video magnifier

A low-vision viewer magnifies the face-up source material in the visual field of a camera and displays the magnified image on a VDU or other display means. In a static mode, the camera captures and stores a high-resolution image of the source material. This high-resolution image can be manipulated and subsequently displayed on the VDU. In a live mode, the camera captures a low resolution image of the source material or a high resolution image of a section of the source material to provide a high frame rate for full motion video. In the live capture mode, the low-vision user can move their view around the source material and zoom in on a desired section of interest. The same camera is used in either static or live modes.
Owner:TECH HUMANWARE

Method and apparatus for sensory substitution, vision prosthesis, or low-vision enhancement utilizing thermal sensing

A sensory substitution device according to an embodiment of the invention includes a thermal imaging array for sensing thermal characteristics of an external scene. The device includes a visual prosthesis adapted to receive input based on the scene sensed by the thermal imaging array and to convey information based on the scene to a user of the sensing device. The visual prosthesis is adapted to simultaneously convey to the user different visual information corresponding to portions of the scene having different thermal characteristics. One type of thermal imaging array includes a microbolometer imaging array, and one type of visual prosthesis includes a retinal implant. According to additional embodiments, an apparatus for obtaining thermal data includes a thermal detector adapted to sense thermal characteristics of an environment using a plurality of pixels. The apparatus also includes a pixel translator, operably coupled with the thermal detector, adapted to translate pixel data of the thermal detector to a lower resolution. The apparatus also includes an interface, operably coupled with the pixel translator, adapted to communicate the thermal characteristics of the environment to a user of the apparatus at a lower resolution than sensed by the thermal detector.
Owner:ADVANCED MEDICAL ELECTRONICS

Enhanced-reality electronic device for low-vision pathologies, and implant procedure

An electronic enhanced-reality device for low-vision pathologies and an implant procedure to optimise the residual vision of persons with low-vision pathologies, to enhance or recover certain functionalities and autonomy for daily activities, Internet-assisted in cloud mode and which, using patient data along with other data and ophthalmological metadata (big data), plus the adjustment and adaptation of the image captured by a video camera, allows the residual visual of persons affected by low-vision pathologies to be optimised, and operating in such a way that with the optimal parametrisations selected and loaded on to the device, the cameras switch on automatically and their images replace the previous image pre-loaded in the projection area (10).These images are processed by the signal processor (9) and projected by the image projector (31) on to the projection areas (10).These images are the ones which the patient will perceive.Ophthalmologist-patient interaction will enable the ophthalmologist to place the images in the right place for the patient in the projection area (10), suitably adapting the images from the camera in each eye independently or simultaneously in both, to optimise their residual vision.
Owner:CAMARA RAFAEL

Electronic Magnification Device

Disclosed is a magnification device for use by blind and / or low vision individuals. The device includes an X-Y table upon which an item to be magnified can be placed. A stationary camera arm and a pivotal monitor arm are oriented over the X-Y table. The monitor arm includes a video monitor pivotally mounted at its distal end. The camera arm also includes two laterally disposed lighting arms. A series of controls are provided along a lower edge of the monitor via a mounting bracket.
Owner:FREEDOM SCI

System and method for providing learning information for visually impaired people based on haptic electronic board

A system and method for providing learning information for visually impaired people based on a haptic electronic board is disclosed. The system for visually impaired people includes a learning information server in conjunction with a lecture and authoring program; a first information output device (PC) for receiving learning information for people with low vision from the learning information server through a wired / wireless network (LAN or WLAN) and having a viewer program for people with low vision, which is install therein, for providing functions of enlarging and reducing a screen; and a second information output device (haptic electronic board) for accessing to the learning information server through a local wireless network (ZigBee or Bluetooth) by using unique device IDs, converting learning information for blind people received from the learning information server to the haptic electronic board into haptic information, and transferring the haptic information to blind people.
Owner:GACHON UNIV OF IND ACADEMIC COOPERATION FOUND

Light management for image and data control

A multi-component method and device for improving vision for some with low vision conditions including age related macular degeneration (AMD) is disclosed. A plurality of co-pathological conditions that together make undistorted, clear and bright vision challenging are dealt with by managing the nature, amounts and patterns of light provided to the eye in a display embodiment. For example, a worn embodiment, in providing an improved image of the view ahead, modifies the frequency mix of incoming light, the relative intensities of light to different retinal locations and the color perception of the wearer while undistorting certain kinds of progressive distortion.
Owner:SIMMONS JOHN CASTLE

Whiteboard archiving and presentation method

The present invention discloses methods of archiving and optimizing lectures, presentations and other captured video for playback, particularly for blind and low vision individuals. A digital imaging device captures a preselected field of view that is subject to periodic change such as a whiteboard in a classroom. A sequence of frames is captured. Frames associated with additions or erasures to the whiteboard are identified. The Cartesian coordinates of the regions of these alterations within the frame are identified. When the presentation is played back, the regions that are altered are enlarged or masked to assist the low vision user. In another embodiment of the invention, the timing of the alterations segments the recorded audio into chapters so that the blind user can skip forward and backward to different sections of the presentation.
Owner:FREEDOM SCI

Method for improving vision of a low-vision person and viewing aid

A method for improving vision of a low-vision person and a viewing aid therefore are disclosed. An image is recorded by means of an image recording device, the image being intermediately stored within an image memory and modified and presented to the eyes of the person by means of an image display device being mounted on the head of the person. An image is recorded within a recording mode and the modified image is transferred to the image display device within a display mode. The display mode is initiated in an interval in time with regard to the image recording mode, the interval in time being manually adjustable.
Owner:CARL ZEISS SMT GMBH

Double bifocal intraocular lens-spectacle telescopic device for low vision use

A double bifocal intra-ocular lens and spectacle system that can be used to enhance the vision of persons suffering from low-vision includes a first optical element placed in or on the eye, and a second optical element placed external to the eye. In particular, the first optical element is designed to be placed in or on the eye. This element includes an inner region and an outer annular region with first and second optical powers respectively. A second optical element that has two regions is disposed external to the eye and aligned so that a first region having a third optical power is optically coupled to the outer annular region for normal vision and the respective optical powers are selected to provide for the standard distance correction of the eye. The second region is arranged so that when aligned with the eye, the second region and the inner region of the first optical element form a Galilean telescope that provides for a magnified image to be provided therefrom.
Owner:THE SCHEPENS EYE RES INST

Gesture-based screen-magnified touchscreen navigation

Screen magnification software on a touchscreen device detects when a low-vision user reaches the boundary of a magnified viewport. If additional canvas or menus lay on the other side of the boundary the present invention enables the low-vision user to maintain the same exploration gesture on the touchscreen while causing the underlying canvas to scroll into view in the direction of the gesture. This invention enables the low-vision user to navigate about the entire underlying canvas of a touchscreen graphic user interface with a single, intuitive touchscreen gesture even under magnification.
Owner:FREEDOM SCI

Method, device and system for forwarding video data

The invention embodiment belongs to the field of video transmission, and discloses a method, a device and a system for forwarding video data. The method includes the following steps: receive and caching a media flow, analyzing the cached media flow, acquiring the TS packet therein, evaluating and identifying the vision sensitivity priority of each TS packet; discarding the TS packet with low vision sensitivity, re-encapsulating the TS packet with high vision sensitivity for forming a novel media flow; transmitting the novel media flow from re-encapsulation to customer equipment, wherein, the TS packet with high vision sensitivity at least includes a video TS packet encapsulating internal coding frames. The TS packet with low vision sensitivity in media flow can be discarded by the network equipment with implementing the invention embodiment. And the method, device and system for forwarding video data provided by the invention reduce the time of rapid channel switch, reduce the network congestion and improve the transmission efficiency, without affecting user vision experience.
Owner:HUAWEI TECH CO LTD

Electronic magnification device

An electronic device is described that assists blind and / or low vision users in magnifying and reading printed text, fast book scanning and printing magnified images of said text. The device can also produce audio output that allows listening to the text being pronounced.
Owner:ABISEE

Electronics assembly in low-vision reader

A low-version reader (LVR) includes a frame adapted to be worn by a person as well as first and second light sources supported by the frame and positioned to project light beams focusing on a working surface. The LVR also includes a first battery embedded in the frame and a first power-supply circuit that regulates power provided by the first battery to energize the first light source. The first battery is rechargeable and in electrical communication through a first discharge path with the first light source. The first discharge path allows the first battery to energize the first light source. A first charger receptacle in electrical communication through a first charge path with the first battery. The first charge path allows charging the first battery when a power charger is coupled with the first charger receptacle.
Owner:VANDERBILT UNIV

Method for improving vision of a low-vision person and viewing aid

A method for improving vision of a low-vision person and a viewing aid therefore are disclosed. An image is recorded by means of an image recording device, the image being intermediately stored within an image memory and modified and presented to the eyes of the person by means of an image display device being mounted on the head of the person. An image is recorded within a recording mode and the modified image is transferred to the image display device within a display mode. The display mode is initiated in an interval in time with regard to the image recording mode, the interval in time being manually adjustable.
Owner:CARL ZEISS AG

Touch-recognizable touch screen for mobile phone for the visually impaired and response manner thereof

The invention relates to the technical field of touch screen for mobile phones, and discloses a touch-recognizable touch screen for mobile phones for the visually impaired. A panel is arranged on the touch screen; a plurality of transverse separation lines and vertical separation lines are arranged on the panel to divide the panel into a plurality of touch regions; a Braille character is arranged in at least one touch region; and the Braille character represents one unique touch region, which corresponds to buttons displayed on the touch screen. The touch screen has such a response manner that the mobile phone can broadcast the function of buttons corresponding to the touch region in a voice mode when the touch region is clicked; and the mobile phone executes the function of buttons corresponding to the touch screen when the touch region is touched persistently. The touch screen is convenient for the visually impaired in recognizing the touch positions in the touch manner, thereby providing convenience in using the mobile phone. In addition, the touch screen can meet the requirement for low-vision persons so as to help persons with amblyopia and the visually impaired to use smart terminals, such as the smart mobile phone.
Owner:上海益航网络科技有限公司

Mobile computing device for blind or low-vision users

Mobile computing device including a physical feature which defines the centre-line of the device across the short and / or long axes of the device.
Owner:ZONE V

Multiposition Handheld Elecronic Magnifier

Disclosed is a magnifier for use by blind or low vision users. The magnifier includes a camera, such as a CMOS image sensor, that displays enlarged images upon a screen for easy viewing. The magnifier further includes a handle that is pivotally interconnected to a housing to allow for handheld use in a variety of different configurations.
Owner:FREEDOM SCI

Method and system for providing a fully accessible color selection component in a graphical user interface

A system for providing a fully accessible color selection component in a graphical user interface, in which multiple selectable colors are represented using a set of selectable color name display regions, each of which includes a text name for a color and has a background color made up of the selectable color. Additionally, and external to the color name display regions, the disclosed system provides a sample color display region made up of a currently selected color. The background colors in the color name display regions reduce ambiguity in normal display settings by showing the user samples of colors that can be selected. The sample color display region supports high contrast settings that are likely to be used by low vision users. When a user has a high contrast setting selected, the background colors in the color name display regions may not be displayed, and accordingly the color name display regions may only display textual names. However, by providing an image of a currently selected color in the sample color display region, the actual color that is currently selected is still displayed, since images are typically not modified by high contrast settings, which may be useful when selecting a color for an off-screen application. The disclosed system can be implemented using an HTML <select> component. A screen reader program can also be used to speak the color names for each color name display region, and the user does not hear any redundant information about the currently selected color.
Owner:IBM CORP

Full-automatic stiffening plate false sticking machine

The invention discloses a full-automatic stiffening plate false sticking machine, and belongs to the technical field of flexible printed circuit processing devices. The full-automatic stiffening plate false sticking machine comprises a machine frame, an FPC positioning heating platform driven by an X-direction movement mechanism is installed on the machine frame in a sliding mode, and a feeding mechanism, a servo blanking mechanism and a sticking mounting mechanism are arranged on the machine frame. The servo blanking mechanism comprises a material overturning mechanism. The sticking mounting mechanism comprises a supporting beam, a Z-direction and angle theta rotating movement mechanism, an upper vision camera and a lower vision camera, wherein a Y-direction movement mechanism is arranged on the supporting beam, the Z-direction and angle theta rotating movement mechanism is installed on the Y-direction movement mechanism, a stiffening plate suction nozzle is installed on the Z-direction and angle theta rotating movement mechanism, the upper vision camera is installed on the Y-direction movement mechanism, and the lower vision camera is installed on the machine frame. According to the full-automatic stiffening plate false sticking machine, the stiffening plate can be accurately stuck and mounted on an FPC, production efficiency and sticking mounting precision are greatly improved, the production cost is reduced, and device stability is high and product quality is reliable during actual production.
Owner:GOERTEK INC

Illuminated low-vision spectacles

Lighted reading glasses for individuals with low vision. In one embodiment, the reading glasses include a frame for supporting lenses having an oculus dexter side and an oculus sinister side, at least one oculus dexter lens supported by the frame on the oculus dexter side, and at least one oculus sinister lens supported by the frame on the oculus sinister side, each of the at least one oculus dexter lens and the at least one sinister lens having an induced prism in a range between about 4 PD and about 22 PD and a lens power that is greater than about +4.00 diopters and less than about +20.00 diopters such that each of said lenses focuses at a distance that is greater than about 5 cm and less than about 25 cm, and at least one light source having a predetermined light strength oriented to project light to provide a predetermined lighted area in a predetermined field.
Owner:VANDERBILT UNIV

Eyewear for people with low vision or impaired vision

The device is eyewear that aids people with low or impaired vision. The eyewear consists of miniature cameras and thin-film transistor (TFT) screens which are powered by a portable battery pack. These items (cameras and TFTs) are imbedded into the eyewear frames. The person with low or impaired vision wears the eyewear like regular eyeglasses, the cameras collect the images, and the TFTs display them in a manner in which the person can easily view the images in a light controlled environment. The eyewear is portable and can be folded like regular eyeglasses.
Owner:SWARTZ JR PETER JOHN +3

Large exit pupil wearable near-to-eye vision systems exploiting freeform eyepieces

Within applications for Near-to-Eye (NR2I) displays, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc., there is a conflicting tradeoff between user comfort, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system within the NR2I display that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Embodiments of the invention address these issues and provide a high performance optical system through the design of the optical eyepiece design to overcome these limitations within a bioptic configuration with laterally disposed displays.
Owner:ESIGHT CORP

Magnifier having slideably mounted camera

A magnifier for use by people with low vision includes a large LCD display upon which an enlarged image appears. Light from an LED is directed in a first direction onto a deflection wall where it is deflected into a direction substantially orthogonal to the first direction. The deflected light impinges upon a diffuser that bends it so that it illuminates an object upon which the magnifier is placed. The light is then reflected by the object, through the diffuser, and onto a mirror positioned at an angle relative to the object. The mirror directs the light onto a camera lens and the lens focuses the light onto a sensor that drives the LCD display so that the image appears on the LCD screen. The camera is slideably mounted so the user can make the image larger or smaller by sliding the camera toward or away from the mirror, respectively.
Owner:FREEDOM SCI

Methods and devices for demountable head mounted displays

For users exploiting near-to-eye (NR2I) displays for augmented reality and / or correction of low vision then the user is typically going to wear the immersive or non-immersive NR2I displays for specific tasks, for specific visual environments, etc. and hence there is an issue of repeatedly attaching and removing the NR2I display. Further, in the majority of applications irrespective of whether for short-term, long-term, low vision, augmented reality, etc. there is a conflicting tradeoff between user comfort, ease of attachment, minimizing intrusiveness and aesthetics. Accordingly, a means of pivotably attaching and supporting a NR2I display is provided wherein the pivotable mounts may be permanently attached, attached, or demountably attached to a frame which may include for some user's prescription lenses.
Owner:ESIGHT CORP

Head-mounted visual display device for low-vision aid and its system

A head-mounted visual display device for low-vision aid, which features 2 models, they are analog signal model and digital signal model. Said analog device contains at least an analog video extractor, a video decoder, an ITU-R.656 decoder, a de-interlacing unit, an image processor, two YCbCr to RGB converter, two color enhancement units, two video D / A converter, a head mounted display, a signal voltage controller and a wireless communication module. Said digital device consists of a digital video signal extractor / capturer, a RGB to YCbCr converter, an image processor, two YCbCr to RGB converter, two color enforcement units, a head-mounted display, a signal voltage controller and a wireless communication module.
Owner:NATIONAL YANG MING UNIVERSITY

Handheld vision detecting device and vision detecting method

The invention discloses a handheld vision detecting device which at least comprises an imaging lens set and a vision chart, wherein the imaging lens set is composed of at least one imaging lens. The cornea of a detected person can be located at the position of the focus on one side of the imaging lens set, the center of the vision chart is arranged on the other side of the imaging lens set, and the vision chart can move in a front-and-back mode along a light path. The invention further discloses a vision detecting method and the steps which can measure various visions with the handheld vision detecting device without wearing glasses. By means of the device, the functions that the naked eye vision is measured, the corrected vision is measured, the worn-glass degree are measured when the corrected vision achieves 1.0, the low vision and the weak vision are detected, and the astigmatism is detected can be achieved. By means of the handheld vision detecting device and the vision detecting method, users can detect the vision at any time and any place, the detecting results are accurate, and the operation is conveniently and easily achieved.
Owner:SHENZHEN CERTAINN TECH CO LTD

Magnifier Having Slideably Mounted Camera

A magnifier for use by people with low vision includes a large LCD display upon which an enlarged image appears. Light from an LED is directed in a first direction onto a deflection wall where it is deflected into a direction substantially orthogonal to the first direction. The deflected light impinges upon a diffuser that bends it so that it illuminates an object upon which the magnifier is placed. The light is then reflected by the object, through the diffuser, and onto a mirror positioned at an angle relative to the object. The mirror directs the light onto a camera lens and the lens focuses the light onto a sensor that drives the LCD display so that the image appears on the LCD screen. The camera is slideably mounted so the user can make the image larger or smaller by sliding the camera toward or away from the mirror, respectively.
Owner:FREEDOM SCI
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