1736 results about "Wide field" patented technology

A mobile information gateway comprises: a wearable human interface module having an image delivery and display mechanism for presenting information with a wide field of view and in three dimensions, a computing and communication module coupled for communication with the human interface module; and a backend service server coupled for communication with the computing and communication module, the backend service server for processing data for home healthcare. The present invention also includes a method for using the mobile information gateway for home healthcare comprises; capturing information with a wearable human interface module; processing the captured information to determine an identity of a user of the wearable human interface module; authenticating the identity of user; retrieving information using the captured information and the authenticated identity; and presenting the retrieved information using the wearable human interface module.

The present invention comprises a foveated imaging system capable of capturing a wide field of view image and a foveated image, where the foveated image is a controllable region of interest of the wide field of view image.

An integrated endoscopic image acquisition and therapeutic delivery system for use in minimally invasive medical procedures (MIMPs). The system uses directed and scanned optical illumination provided by a scanning optical fiber or light waveguide that is driven by a piezoelectric or other electromechanical actuator included at a distal end of an integrated imaging and diagnostic / therapeutic instrument. The directed illumination provides high resolution imaging, at a wide field of view (FOV), and in full color that matches or excels the images produced by conventional flexible endoscopes. When using scanned optical illumination, the size and number of the photon detectors do not limit the resolution and number of pixels of the resulting image. Additional features include enhancement of topographical features, stereoscopic viewing, and accurate measurement of feature sizes of a region of interest in a patient's body that facilitate providing diagnosis, monitoring, and / or therapy with the instrument.

The invention, exemplified as a single lens stereo optics design with a stepped mirror system for tracking the eye, isolates landmark features in the separate images, locates the pupil in the eye, matches landmarks to a template centered on the pupil, mathematically traces refracted rays back from the matched image points through the cornea to the inner structure, and locates these structures from the intersection of the rays for the separate stereo views. Having located in this way structures of the eye in the coordinate system of the optical unit, the invention computes the optical axes and from that the line of sight and the torsion roll in vision. Along with providing a wider field of view, this invention has an additional advantage since the stereo images tend to be offset from each other and for this reason the reconstructed pupil is more accurately aligned and centered.

A detection apparatus having a read head including a plurality of microfluorometers positioned to simultaneously acquire a plurality of the wide-field images in a common plane; and (b) a translation stage configured to move the read head along a substrate that is in the common plane. The substrate can be a flow cell that is included in a cartridge, the cartridge also including a housing for (i) a sample reservoir; (ii) a fluidic line between the sample reservoir and the flow cell; (iii) several reagent reservoirs in fluid communication with the flow cell, (iv) at least one valve configured to mediate fluid communication between the reservoirs and the flow cell; and (v) at least one pressure source configured to move liquids from the reservoirs to the flow cell. The detection apparatus and cartridge can be used together or independent of each other.

Optical Projection System and Method for Photolithography. A lithographic immersion projection system and method for projecting an image at high resolution over a wide field of view. The projection system and method include a final lens which decreases the marginal ray angle of the optical path before light passes into the immersion liquid to impinge on the image plane.

Embodiments of the invention provide systems and methods for three-dimensional imaging with wide field of view and precision timing. In accordance with one aspect, a three-dimensional imaging system includes an illumination subsystem configured to emit a light pulse with a divergence sufficient to irradiate a scene having a wide field of view. A sensor subsystem is configured to receive over a wide field of view portions of the light pulse reflected or scattered by the scene and including: a modulator configured to modulate as a function of time an intensity of the received light pulse portion to form modulated received light pulse portions; and means for generating a first image corresponding to the received light pulse portions and a second image corresponding to the modulated received light pulse portions. A processor subsystem is configured to obtain a three-dimensional image based on the first and second images.

A content delivery and display solution includes a viewing application for displaying immersive images with a region of interest, in addition to conventional fixed-aspect-ratio media. The display can include the layered display of metadata, multiple windows, and images or hotspots embedded into the immersive image. The viewing application can be used for the display of either live or prerecorded images, from local or online sources.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with a wide field of view.

A three-dimensional mapping system comprising a moderate number (typically 2 to 4) of moderate-beam-count (typically 8-beam to 16-beam) lidar sensors is proposed to achieve low cost systems with wide fields of view. Secondary advantages include compact sensors and a small minimum range (possible by optimal placement of each of a plurality of sensors).

The specification and drawings present a new apparatus and method for providing a wide field-of-view as well as illumination uniformity in exit pupil expanders (EPE) using stacked EPE substrates (or plates) with non-symmetric exit pupil expansion that use a plurality of diffractive elements for expanding the exit pupil of a display for viewing.

A new processing capability for dust enhancement over land or water using image data from the Sea-viewing Wide Field of View Sensor (SeaWiFS) has been developed for Naval meteorology / oceanography (MetOc) operations support. The data are captured via direct broadcast high-resolution picture transmission (HRPT) at Navy Regional Centers in Rota, Bahrain, and Yokosuka, and processed at the Naval Research Laboratory in Monterey. The raw data are calibrated, corrected for missing lines and clutter, corrected for molecular scatter contamination, and enhanced through multispectral combination to yield value added products. The processing has been automated completely such that products, generated upon receipt of data, are hosted upon a password protected website typically 60 to 90 minutes from time of initial capture. This invention summarizes the SeaWiFS instrument capabilities, the protocol followed for automated near real-time processing, a physical basis for the NRL enhancements, and specific examples of the products with extension to over-land dust enhancement as enabled by MODIS. It closes with a glimpse of the potential utility of these products from the perspective of the warfighter.

The present invention provides an imaging lens assembly including, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power; a third lens element with negative refractive power; a fourth lens element with positive refractive power having a convex object-side surface; a fifth lens element having a concave image-side surface, at least one inflection point being provided on the fifth lens element; and an aperture stop disposed between an imaged object and the third lens element. Such an arrangement of optical elements can effectively improve the image quality of the system and enable the imaging lens assembly to maintain a compact form. When the aperture stop is disposed near the object side, the telecentric feature is emphasized, resulting in a shorter total track length. When the aperture stop is disposed near the third lens element, the emphasis is on the wide field of view, and such an aperture stop placement helps to effectively reduce the sensitivity of the imaging lens assembly.

A system, method and device for the capture and display of high-resolution stereoscopic or monoscopic wide fields-of-view (FOV) at still or video rates, presenting techniques and designs for distance measuring, for changing the working stereo capture range of a stereoscopic image capture device, and for playing pre-recorded or transmitted stereoscopic video image data through a player unit. The system supports multiple independent viewers and image analysis sub-systems of various types utilizing hardware, software and firmware. Further included is a stereoscopic videoconferencing embodiment that captures and transmits an entire room's view and automatically directs focus of images.

A high resolution CMOS imaging system especially suitable for use in a periscope head. The imaging system includes a sensor head for scene acquisition, and a control apparatus inclusive of distributed processors and software for device-control, data handling, and display. The sensor head encloses a combination of wide field-of-view CMOS imagers and narrow field-of-view CMOS imagers. Each bank of imagers is controlled by a dedicated processing module in order to handle information flow and image analysis of the outputs of the camera system. The imaging system also includes automated or manually controlled display system and software for providing an interactive graphical user interface (GUI) that displays a full 360-degree field of view and allows the user or automated ATR system to select regions for higher resolution inspection.

The invention discloses repeating titanium clamp pincers, which comprise a pincer body and a nail storage for filling a titanium clamp. When in use, the clip storage is inserted into the pincer body, and a handle is pinched to realize the clamp-closure of the titanium clamp and is released to finish the automatic filling of the next titanium clamp. The repeating titanium clamp pincers can effectively improve the operative speed, shorten the length of operation and reduce the probability of falling off of the titanium clamp when apparatuses are passed; in addition, only the titanium clamp and the nail storage are disposable apparatuses, while the pincer body can be sterilized and repeatedly used, thus the cost on use of the repeating titanium clamp pincers is low and economical burdens of patients can be relieved; besides, bended pincer heads can provide wider field of view and internal-mounted structural parts are beneficially for being prevented from contaminating by the operation.

A head up display (HUD) includes an image source, a first lens, a second lens, a focusing mirror, a polarizing beam splitter, a second beam splitter and a combiner. The first lens is disposed between the image source and polarizing beam splitter. The second lens is disposed between the polarizing beam splitter and the second beam splitter. The polarizing beam splitter is disposed between the first lens, the mirror, and the second lens. The optical system for the HUD forms an intermediate image between the second lens and the second beam splitter. The intermediate image is located at the focal point of the curved combiner, and therefore the curved combiner collimates the display light upon reflection. The HUD can be compact and have a wide field of view.

An apparatus and method are used for real-time wide-field-of-view ranging with a time-of-flight lidar sensor having one or a plurality of laser emitters and one or a plurality of photodetectors. When a plurarity of laser emitters are used, they are preferably copackaged or are in the form of an integrated multi-emitter chip or emitting multi-chip module in a single package, and when a plurarity of photoreceivers are used, they are preferably copackaged or are in the form of an integrated multi-photoreceiver chip or photoreceiving multi-chip module in a single package. Furthermore, the apparatus comprises any combination of (a) no moving external parts in contact with the environment, (b) wireless energy and data transfer between the static and the moving parts of the lidar, and (c) protective body, sealant and / or damage-resistant tamper-resistant theft-resistant cage.

A stereoscopic imaging system incorporates a plurality of imaging devices or cameras to generate a high resolution, wide field of view image database from which images can be combined in real time to provide wide field of view or panoramic or omni-directional still or video images.

A system for capturing super wide-angle panoramic images. In particular, a two-reflector system is disclosed which is substantially self-correcting in which optical aberrations are substantially eliminated, such as field curvature, astigmatism and the like. Moreover, the super wide-angle panoramic imaging apparatus of the invention captures a super-wide field of view from a substantially single reference viewpoint. The invention provides a substantially compact viewpoint, while also having a substantially flat and stigmatic image plane, in the context of a super wide-angle panoramic system. Devices and methods for capturing panoramic images of super wide-angle scenes are provided. In a particular embodiment of the invention, two reflectors are provided (e.g., one a hyperboloidal mirror, the other a concave ellipsoidal or spherical mirror), a relay system (e.g., optics such as a mirror, a lens, a pinhole and the like) and an image sensor (e.g., an electronic photo-sensor, a film and the like).

Video communication devices and methods are provided. The device has an image display device; a first image capture device that acquires video images depicting a wide field of view within the local environment; a second image capture device that acquires video images depicting a narrow field of view within the wide field of view; a communication system that is adapted to use a communication network to transmit outgoing video images; and a computer causing the capture of video images during a communication event, and further being adapted to identify a video context for the communication event; wherein said computer uses a scene analysis algorithm to examine concurrent video images from the image capture device based upon the identified video context to determine the extent to which video images from the first image capture device and the second image capture device are to be incorporated into the outgoing video images.

An improved multiple-sensor vision system for use on vehicles or aircraft. The system utilizes a plurality of fixed sensors, such as infrared sensors, that provide signals that are recorded on tape and / or stored in memory. A processor digitally samples the stored images and provides output to a helmet-mounted display. Desirably, the sensors are arrayed in series such that their images may be juxtaposed and blended to provide a wider field-of-view image. A tracking system desirably monitors the head position of the operator, which position is then used to select various images from the processor. In this way, the operator can select various views by simply looking in that direction. In one embodiment, the array of sensors is forward-looking and positioned close to the head position of the operator to minimize parallax issues. In addition to forward-looking sensors, other sensors mounted around the vehicle / aircraft may provide rearward, hemispherical, or complete spherical coverage. Sensors that monitor the status of various instruments on board the vehicle can also provide input to the helmet-mounted display, including a moving map tile that is displayed below or to the side of the main image.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with a wide field of view.

Conventional electro-optical imaging systems can not achieve wide field of view (FOV) and high spatial resolution imaging simultaneously due to format size limitations of image sensor arrays. To implement wide field of regard imaging with high resolution, mechanical scanning mechanisms are typically used. Still, sensor data processing and communication speed is constrained due to large amount of data if large format image sensor arrays are used. This invention describes an electro-optical imaging system that achieves wide FOV global imaging for suspect object detection and local high resolution for object recognition and tracking. It mimics foveated imaging property of human eyes. There is no mechanical scanning for changing the region of interest (ROI). Two relatively small format image sensor arrays are used to respectively acquire global low resolution image and local high resolution image. The ROI is detected and located by analysis of the global image. A lens array along with an electronically addressed switch array and a magnification lens is used to pick out and magnify the local image. The global image and local image are processed by the processor, and can be fused for display. Three embodiments of the invention are described.

Real time, high-speed image stabilization with a retinal tracking scanning laser ophthalmoscope (TSLO) enables new approaches to established diagnostics. Large frequency range (DC to 19 kHz), wide-field (40-deg) stabilized Doppler flowmetry imaging is described for human subjects. The fundus imaging method is a quasi-confocal line-scanning laser ophthalmoscope (LSLO). The retinal tracking system uses a confocal reflectometer with a closed loop optical servo system to lock onto features in the ocular fundus and automatically re-lock after blinks. By performing a slow scan with the laser line imager, frequency-resolved retinal perfusion and vascular flow images can be obtained free of eye motion artifacts.

A multiple function laryngoscope to be used for the safe intubation of a patient's trachea during a respiratory emergency or as an elective procedure. A two section instrument. Proximally, a reusable handle that houses a rechargeable battery, electronic circuits that feed a distal digital image to variable position LCD screen or viewing port, switches and low battery indicator light. Distally, the handle electrically couples with a disposable curved scabbard. The scabbard features a dorsal endotracheal tube channel with a wavy opening which allows preloading and gentle extraction of different size endotracheal tubes once the patient's trachea has been intubated. The scabbard's distal end strategically houses a distal sweeper that engages the epiglottis and exposes the glottis, an opening for the exit of a preloaded endotracheal tube, a LED light, a suction / oxygenation port, and a lens coupled with a digital imaging system (CMOS) to digitize and transport a distant wide field of view. Safe LCD view of one or serial rapid intubations are possible by rapidly replacing for a clean disposable scabbard in case of multiple emergencies.

Pixels for a large video display which employs solid-state emitters, such as colored light emitting diodes, as light source are formed by outfitting each colored solid state emitter within the pixel with an individually tailored miniature intensity-enhancing optical system. Each of these miniature optical systems comprises a set of four wide field-of-view Lambertian reflectors 34, a pair of narrow field-of-view Lambertian reflectors 36, and a beam-shaping lens 38. The miniature intensity-enhancing optical system can be specifically designed to restrict emission in the vertical field-of-view, while providing a Lambertian intensity dependence throughout an unrestricted horizontal view. For example, the field-of-view in the vertical direction may be limited to about .+-.30.degree. while the field-of-view is about .+-.90.degree. in the horizontal direction.

A birefringent interferometer system is described which uses nematic liquid crystal cells to produce variable optical path differences (OPD) between light of different polarization states that are interfered at a polarizing analyzer. Fixed retarders may also be incorporated to extend the range of OPD. The interferometer provides wide field-of-view, continuously variable path difference over a large range, and an on-board monitor of OPD for ensuring accurate settings of path difference, and hence, an accurate wavelength scale in the spectra produced by the apparatus. The system can further incorporate additional polarizing optics so it responds equally well to light of any incident polarization state without loss of efficiency.