Matches 1 - 50 out of 227 1 2 3 4 5 >
Match Document Document Title
7401920 Head mounted eye tracking and display system  
A system for eye tracking that determines the line of sight of a user according to the relative position between the center of the pupil and a reference point, the system including an image...
7401919 Method, device and arrangement for measuring the dynamic behavior of an optical system  
A method for measuring the dynamic behavior of an optical system is aimed at rendering the dynamic behavior of the optical system objectively detectable. To this end, the optical system to be...
7400410 Optical coherence tomography for eye-length measurement  
An accurate measure of eye length can be obtained using concurrent OCT measurements. A position OCT device can be used to continually monitor the position of the front surface of the cornea, while...
7387386 Ophthalmologic image processing apparatus  
To synthesize an aperture mask having unnoticeable steps with a taken fundus image. In an image processing apparatus, taken fundus image data is inputted and then analyzed. After that, an aperture...
7380938 Apparatus to detect and measure saccade and pupilary changes  
An eye tracking system employs a first line camera that is configured to track horizontal eye motion and a second line camera that is configured to track vertical eye motion. Output signals from...
7367673 Method and apparatus for the diagnosis of glaucoma and other visual disorders  
A subject ( 12 ) observes an image on a display ( 10 ). A control ( 18 ) produces a fixation image at a selected position in the display, followed by a stimulus spaced from the fixation image. An...
7357507 Image-based system to observe and document eye responses  
The image-based system is used to observe and document eye responses which can be used to implement the procedures defined in the Standardized Field Sobriety Test as well as the Drug Recognition...
7347551 Optical system for monitoring eye movement  
A system for detecting eye closure through optical observation of the eye includes a frame configured to be worn on a user, a light source, and at least one eyepiece connected to the frame. The...
7344251 Mental alertness level determination  
A method for determining mental alertness level by monitoring point of gaze, pupillary movement, pupillary response, and other parameters in a subject performing a task, collecting the data in a...
7341347 Fundus image display system  
In a fundus image display system, a fundus image, time information and a tool bar are displayed on a monitor screen. In case where the tool bar overlaps with the fundus image or the time...
7338166 Image-based system to observe and document eye responses having a reflective protractor for measurement of stimulus position  
The image-based system is used to observe and document eye responses which can be used to implement the procedures defined in the Standardized Field Sobriety Test as well as the Drug Recognition...
7331671 Eye tracking method based on correlation and detected eye movement  
An eye tracking method tracks a subject's eye template by correlation between successive video frames, and periodically updates the eye template based on detected characteristic eye or eyelid...
7325926 Ophthalmologic photographic device  
An ophthalmologic photographic device has control means for setting a fixed gain at the time of alignment and at the time of still image taking and switching to AGC when switching to moving image...
7296894 Fundus camera having scanned illumination and pupil tracking  
An apparatus ( 100 ) for obtaining an image of the eye, has an alignment section ( 160 ) for aligning the pupil of the eye along an optical axis and a pupil sensor ( 170 ) for identifying pupil...
7296892 Ocular accommodative function examination apparatus  
An ocular accommodative function examination apparatus for examining an accommodative function of an examinee's eye, comprises: a fixation target presenting optical system which presents a fixation...
7246905 Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye  
An apparatus ( 10, 10 ′) for detecting the surface topography of a cornea ( 24 ) of an eye ( 22 ) by dynamic or static projection of a pattern onto the surface of the cornea and detection of the...
7241011 Fundus imaging system  
An apparatus ( 220 ) for obtaining a scanned image of an eye has a reference locator for pupil alignment apparatus along an optical axis. A pupil profiling apparatus for obtaining an outline of the...
7234812 Method and apparatus for manufacturing a custom fit optical display helmet  
A helmet with an optical display system is provided with a custom fit protective liner which precisely aligns the wearer's eyes with the optics on the helmet. The helmet is manufactured by...
7198367 Fundus imaging apparatus and fundus imaging method  
A fundus imaging apparatus comprises: a beam emitter which simultaneously emits a first laser beam and a second laser beam having a different wavelength from the first beam; an irradiation optical...
6854847 Optical tracking device employing scanning beams on symmetric reference  
The optical tracking device of the present invention is contemplated to obtain a large tracking range in an open loop configuration. The tracking device projects and scans two probe beams across a...
6834202 Blood flow measuring apparatus  
A blood flow measuring apparatus includes a system control unit that sends outputs for controlling the start and end of the measurement to optimum gain calculation units, which calculate the...
6802837 Device used for the photorefractive keratectomy of the eye using a centering method  
The invention relates to a device used for the photorefractive keratectomy of the eye, especially LASIK, uses an UV laser beam for ablating parts of the cornea. A centering light beam is arranged...
6755817 Device for medical treatment of the eye using laser illumination  
A device for the medical treatment of the eye with laser radiation uses auxiliary radiation for determining the eye position. With the aid of the auxiliary radiation, pictures are taken by means of...
6749302 Afocal position detection system and ophthalmic instrument employing said system  
A fast position detection system and related method for an ophthalmic instrument utilize stored geometrical relationships determined by multiple regression during instrument calibration to compute...
6702809 System for detecting, measuring and compensating for lateral movements of a target  
A method, apparatus and system for a transverse tracker is described that can greatly improve the accuracy, speed, range, reliability, versatility, safety, and efficacy of interventions such as...
6674964 Visual axis detecting apparatus  
Disclosed is a visual axis detecting apparatus having: a visual axis detection circuit for detecting a visual axis of an observer; an arithmetic circuit for performing an arithmetic operation of...
6659611 System and method for eye gaze tracking using corneal image mapping  
A system and method for eye gaze tracking without calibrated cameras, direct measurements of specific users' eye geometries, or requiring the user to visually track a cursor traversing a known...
6652458 ADHD detection by eye saccades  
A method of determining whether an individual has Attention Deficit Hyperactivity Disorder comprising: sampling the eye movement of a human subject during a predetermined time interval when the...
6637883 Gaze tracking system and method  
An eye-tracking system for displaying a video screen pointer at a point of regard of a user's gaze. The system comprises a camera focused on the user's eye; a support connected to the camera for...
6626895 Laser beam delivery system  
An ophthalmic laser system includes a laser beam delivery system and an eye tracker responsive to movement of the eye operable with a laser beam delivery system for ablating corneal material of the...
6612698 Pupil measurement apparatus, refraction correction apparatus, and pupil measurement method  
A video imaging device obtains the eyeball image of a cornea using light emitted from an imaging light source to the cornea. On the basis of the obtained eyeball image, a video processing device...
6608615 Passive gaze-driven browsing  
Passively tracking a user's eye gaze while the user is browsing a web page and modifying the presentation of the web page to the user based on the tracked gaze. By combining historical information...
6604825 Hybrid tracking system  
A hybrid tracking system is configured to combine the advantages of open loop and close loop tracking systems. The hybrid tracking system employs a position-sensing device in an open loop...
6580563 Image detection system  
An image detection system comprises a camera ( 2 ) for generating an electrical output signal representative of the detected image. The camera is carried by a headset ( 1, 3 ) for attachment to the...
6579282 Device and method for creating a corneal reference for an eyetracker  
A device and method for increasing the accuracy of an ocular laser procedure by detecting and compensating for small eye movements includes the establishment of a corneal reference plane. To create...
6553281 Device for determining a fixation point  
The invention relates to a device for determining a fixation point ( 3 ) on screen ( 1 ), comprising an eye reference point detector ( 6 ) an a direction of view detector ( 9 ) which is mounted on...
6535757 Ocular examination system  
An ocular examination system includes an illumination system illuminating a region of an eye fundus including a target blood vessel and adjusting the intensity of light illuminating the region, an...
6526159 Eye tracking for resource and power management  
A method and apparatus for managing resources. The apparatus includes a pattern recognition block to receive the video signal comprising an eye image and to generate a first signal indicating an...
6507702 Device having sight line detecting function  
A device having a sight line detecting function includes an illumination unit for illuminating an eyeball of an observer looking into an observation screen, by a plurality of light-emitting...
6456262 Microdisplay with eye gaze detection  
An electronic device may include a microdisplay in which a displayed image element may be selected by gazing upon it. An eye gaze detector may determine what the user is looking at at any given...
6388814 Head mounted display  
A micro-display ( 1 ) and a condenser lens ( 2 ) focusing an image of the micro-display onto retina of human eye are provided within a case ( 3 ). Then, a reflected light detecting means ( 4 ) for...
6333988 Personal identification  
A personal identification apparatus for providing information characteristic of an eye includes a housing with an entrance window through which a user looks at a target object. An image capture...
6332683 Fundus examination apparatus  
Fundus examination is effected by the steps of irradiating the fundus of an examined eye with a measuring beam through a deflector, irradiating the fundus of the eye with a tracking beam through...
6322216 Two camera off-axis eye tracker for laser eye surgery  
Improved laser eye surgery and/or eye tracking systems, methods, and devices make use of two image capture devices, generally with both image capture devices disposed off the optical axis of the...
6299308 Low-cost non-imaging eye tracker system for computer control  
A device for measuring eye movements is suitable for stand-alone, portable use and for integration into a head/helmet mounted display. The low-cost non-imaging eye tracking system is optimized...
6299307 Eye tracking device for laser eye surgery using corneal margin detection  
Systems and methods derive relative eye position by tracking a boundary such as the limbus. Light can be scamed along the limbus, and measured intensity of reflected light processed to derive the...
6283954 Linear array eye tracker  
Improved devices, systems, and methods for sensing and tracking the position of an eye make use of the contrast between the sclera and iris to derive eye position. In many embodiments, linear...
6273565 Ophthalmological device  
An ophthalmological device in which a liquid crystal element is controlled such that four liquid crystal element cells, with an eye fixation target at the center of the four cells, are set in a...
6228038 Measuring and processing data in reaction to stimuli  
Method and device for collecting and processing stimuli data and measuring the reactions to them, in which the physiological reactions of respondents to the stimuli presented, or components...
6217172 Ophthalmologic measuring system  
An ophthalmologic measuring system, comprising a light source unit 4 for emitting an illuminating light beam for illuminating a fundus of each of both eyes of a person under measurement, a...
Matches 1 - 50 out of 227 1 2 3 4 5 >