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Class 351/201 - For fusion and space perception testing (e.g., stereoscopic vision)


Subclass of Class 351 - Optics: eye examining, vision testing and correcting
Definition: Subject matter including instruments used for testing simultaneous
No. of patents: 59
Last issue date: 12/13/2011


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NumberTitleIssue Date
8075134Method to represent images for dissociative stereoscopic vision and related system
The following is a method to represent images for dissociative stereoscopic vision, which allows, by means of some simple operations on stereoscopic images, to develop a device comprising a processing card and LCD shuttering goggles, which together with a computer e...
12/13/2011
8066372Binocular vision assessment and/or therapy
This invention is a game platform for the assessment and/or treatment of disorders of binocular vision, such as amblyopia. The game content is devised to maximize the possible therapeutic effects by leveraging advanced research in ophthalmology, as well as advanced ...
11/29/2011
8057036Binocular vision assessment and/or therapy
An information difference between a left eye image and a right eye image is adjustable to achieve binocular vision in a patient having a deficiency of binocular vision. A source of image pairs is used along with a dichoptic display system to present a selected one o...
11/15/2011
8002408Anaglyphic depth perception training or testing
An anaglyphic image presentation system is provided to evaluate and train a user's depth perception abilities. In embodiments, anaglyphic image target components are presented to a user on a display device. The image target components are then viewed by the user thr...
08/23/2011
7980693Anaglyphic depth perception training or testing
An anaglyphic image presentation system is provided to evaluate and train a user's depth perception abilities. In embodiments, anaglyphic image target components are presented to a user on a display device. The image target components are then viewed by the user thr...
07/19/2011
7819524Optotype presenting apparatus
An optotype presenting apparatus for presenting an optotype to be used for testing a visual function of an eye of an examinee, the apparatus comprises: a display unit including a memory in which a plurality of optotypes is stored and a display on which at least one ...
10/26/2010
7717560Eye-administered, moving-image physiologic test system and method
A physiologic test, and a system for implementing this test, including, from a methodologic point of view, (a) illuminating the central field in a test subject's eye with a relative-motion test image produced on an image display structure by a motion-image-creation ...
05/18/2010
7384399Cognition and motor timing diagnosis and training system and method
A system for testing a subject's cognition and motor timing includes an actuator, a sensor and a computer. The actuator is configured to present to the subject multiple stimuli, including predictable stimuli and non-predictable (e.g., random or pseudo-random) stimul...
06/10/2008
7355719Interferometer for measuring perpendicular translations
An interferometer provides a large dynamic range for perpendicular displacement measurements. In operation, a measurement reflector on an object reflects a measurement beam to an overlying Porro prism, and a reference reflector on the object returns a reference beam...
04/08/2008
7309125Method and apparatus for detecting abnormalities in spatial perception
An apparatus for detecting abnormalities in spatial perception that consists of a first transparent screen in a close-vision field and a second screen seen through the first one and located in a far-vision field of a person being tested. The apparatus is provided wi...
12/18/2007
7290878Machine for binocular testing and a process of formatting rival and non-rival stimuli
A process for formatting rivalrous fusible images having similarly shaped stimuli of similar binocular luminance and having other similarly shaped stimuli of different binocular luminance, which metamorphose during perception into identifiable shapes that distinguis...
11/06/2007
7277121Stereoscopic image processing and display system
An image processing apparatus includes an image obtaining unit and an information adding unit. The image obtaining unit obtains a base image for stereovision in a multiplex format or a side-by-side format, or obtains an original image and then converts it to such a ...
10/02/2007
7267437Biomimicking applications of human sensory systems
A method of sensory training and testing systems focusing upon the development of pre-attentive and attentive vision for the enhancement of the individual's ability to perform specific functions. ...
09/11/2007
7252382Apparatus and method for measuring differences in the transmission of light through a lens of an eye
The apparatus for measuring differences in the transmission of light through a lens of an eye is an eye chart has two main sections including a test section that displays a shade of a test color and a reference section that displays either a spectrum of shades, or a...
08/07/2007
7229174Method to detect misalignment and distortion in near-eye displays
A flashing dot is alternately shown in the left image and right display of a binocular device at short intervals so as to allow a user to detect the misalignment in the displays. If misalignment occurs, the user sees a dot moving between two locations. The user uses...
06/12/2007
7215809Three-dimensional image producing method and apparatus therefor
A center of rotation O of a camera 10 is determined on an axis 45 passing through the position between pickup target objects A, B and the camera 10 in the direction from a lens 3 to a CCD 2. Before rotation (in a first state), an o...
05/08/2007
7193626Device and method for displaying stereo image
A stereo image displaying device comprising: a feature element specifying section 40 for specifying feature elements contained in a pair of stereo images taken with a stereo image taking section 10; an image controlling section 30 for controllin...
03/20/2007
7030903Image display system, information processing apparatus, and method of controlling the same
A stereoscopic image display apparatus for displaying a stereoscopic image, which is obtained by alternately arranging stripe parallax images R and L corresponding to the right and left eyes, in a window includes a parallax barrier for a stereoscopic vision. When th...
04/18/2006
7016114Diffraction optical device and optical system including same
A diffraction optical device includes a first diffraction element and a second diffraction element arranged adjacent to each other. One of the first diffraction element and the second diffraction element has a positive power, and the other has a negative power. The ...
03/21/2006
6592222Flicker and frequency doubling in virtual reality
A system for testing and quantifying visual field and other visual function information in a head-mounted virtual reality environment, utilizing a directed image formation device for scanning of a flickering image for display to the test subject. A method...
07/15/2003
6517204Electronic depth perception testing system and apparatus for conducting depth perception tests
An electronic eye depth testing method comprises a three dimensional cubic space displayed on a display screen, wherein the cubic space has a first image of a three dimensional object and a second image of a three dimensional object randomly placed within...
02/11/2003
6519088Method and apparatus for maximizing the viewing zone of a lenticular stereogram
A lenticular stereogram has an improved viewing zone for a specific viewing distance when an image print (207) having an optimum image column width is utilized. The optimum image column width is determined by observing a series of two color prints having ...
02/11/2003
6280032System for detecting and correcting color vision deficiencies based on critical fusion frequency spectral scanning
Method for detecting color vision deficiencies of a subject by determining his or her spectral sensitivity curve, wherein the spectral sensitivity curve is determined by critical fusion frequency spectral scanning at predetermined discrete narrow bands of...
08/28/2001
6129436Method and device for visual examination
A method and device allows to instantly determine the critical fusion frequency of a person without changing the routine viewing and lighting conditions. For a personal computer user, a window with running stripes or a blinking dot is projected onto a vid...
10/10/2000
5877840Binocular view function inspecting apparatus and inspecting method
A reference image and an index image are displayed on a three-dimensional display device with either one of the images taken as a left eye image and the other image taken as a right eye image. When a movement command to move a display position of the inde...
03/02/1999
5825456Stereoscopic video display apparatus
An apparatus for displaying a stereoscopic image including right-eye and left-eye image display devices displaying right-eye and left-eye images, respectively, right-eye and left-eye magnifying lenses forming enlarged virtual right-eye and left-eye images...
10/20/1998
5764340Portable device for evaluation of binocular vision problems
A vision evaluation device which measures the three vision parameters of stereoscopic vision, fusion testing, and fusion recovery measurement. The device comprises a stereo-pair of images in constant view through the eye pieces of a lighted View Master.RT...
06/09/1998
5706070Nonconducting, nonradiating remote visual and audio communication systems
A nonconducting, nonradiating remote communication system for use with medical research, diagnostic, and therapeutic instruments without disturbing the operation of those instruments, in which an image generator such as a CRT generates an image or stereo ...
01/06/1998
5638082Vision testing system for stereoscopic viewing by a test person
An image display system comprises polarization spectacles having different polarization axes with or without λ/4-foils of both polarization lenses forward of the eyes of the person to be tested. The system of the invention further includes an image displ...
06/10/1997
5530492Ophthalmological instrument for producing dichoptic stimuli on a visual display terminal
A method and system for presenting two successive images on a video display unit as a dichoptic stimulus of substantially equal intensity, wherein a first image is displayed at a predetermined intensity so as to be seen by a first eye of an observer only,...
06/25/1996
5369454System and method for producing and maintaining parallel and vertical fixation of visual axis
An apparatus for assuring vertical alignment of visual axes of a patient's eyes includes an eye cup that enables establishment of a liquid bath in which a surface of a cornea of a supine patient's first eye is completely submerged. A first light source is...
11/29/1994
5357293Apparatus for analyzing depth perception
An image at a distant point and an image at a close point for generating depth perception of a subject are displayed on an image display monitor, and eye movement of the subject at that time is detected by an eye movement detecting portion. A calculating ...
10/18/1994
5349397Apparatus and method for determining a patient's dominant eye
An examining device is provided which quickly and easily determines the "sidedness" of an individual's eyes. The device has a viewing port and conical opaque sidewalls which converge to a small diameter viewing port. The device is constructed so that the ...
09/20/1994
5331358Vision testing system for testing the sight function of a patient
A vision testing system includes polarization spectacles having different polarization axes with or without λ/4 filters for the two polarization lenses forward of the eye of the patient to be tested. This system also includes a vision testing apparatus f...
07/19/1994
5311225Device for determining the portion of a field seen by the eye of an observer
Device intended to determine the portion of a field seen by the eye (5) of an observer. According to the invention, this device includes: an optical sighting system (2, 3) through which said eye (5) looks at said field, said optical system comprising an exit e...
05/10/1994
5299053Variable shutter illumination system for microscope
An opthalmic microscope is provided having a variable shutter illumination system which decreases the amount of light from the light source passing through the shutter to the field of view. When a patient's eye is positioned within the field of view, the ...
03/29/1994
5274405Wide angle viewing system
Disclosed is a viewing system (30) for displaying and viewing stereoscopic images to a viewer's full field of view. The viewing system includes an image display assembly (32) including display surfaces (34) for displaying images primarily to the viewer's ...
12/28/1993
5235361Stereoscopic vision testing apparatus
Apparatus for use in optometry to determine the degree of stereo acuity present in a patient comprises a frame having a proximal end adapted to engage against the face, particularly the chin of the patient, and carrying a support structure for receiving a...
08/10/1993
5233458Method and apparatus to reduce binocular rivalry in a partial overlap binocular display
A method and apparatus for reducing the effects of binocular rivalry in a partially overlapped binocular image are disclosed. A false contour line is generated either electronically or mechanically along the border between the binocular and monocular imag...
08/03/1993
5123726Stereoscopic viewing system and method
An apparatus and method for displaying and viewing full field-of-vision stereoscopic images is disclosed. The apparatus includes left and right display components including curved screens. The screens are suitable for mounting in a fixed position relative...
06/23/1992
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