Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7993002 | Perimeter A perimeter of the present invention including: visual field scanning screen generating means; fixation image displaying and controlling means; visual target scan line parallel setting means; visual target displaying and controlling means; statically displaying and ... | 08/09/2011 |
| 7753525 | Ophthalmic apparatus A virtual sensitivity value which is obtained, variously changing a pupil diameter is measured in advance for many examinees, and volume of correction which is necessary at the time when the sensitivity value is corrected into one in a standard pupil diameter is sto... | 07/13/2010 |
| 7658496 | Perimeter A perimeter performs a kinetic visual field examination on the basis of a response as to whether a subject visually recognizes a displayed stimulus for kinetic visual field examination. The stimulus is displayed a series of times on an inner surface of a visual fiel... | 02/09/2010 |
| 7367671 | Process and device for the training of human vision The present invention relates to a process for training the visual system of a human by presenting optical stimuli to said human, said stimuli being presented to a zone within the intact visual field of said human and optionally to a zone outside the intact visual f... | 05/06/2008 |
| 7355588 | Light control module and method thereof A light control module appropriate for an optical pointing device. The light control module comprises a processing unit outputting a first signal and a second signal, a photo sensor unit executing a capture operation according to an impulse of the first signal, and ... | 04/08/2008 |
| 7325925 | Perimeter A Perimeter is provided for designating a perimetry point for an eye to be examined with a fundus image of the eye which has already been provided so as to compensate the individual variation in the position of a blind spot to the maculalutea. ... | 02/05/2008 |
| 7244027 | Perimeter A perimeter for examining a visual field condition of an examinee's eye, includes: a target presenting unit a response unit brain activity detecting unit which detects an activity condition of a visual cortex of the examinee; and an operation unit which determines i... | 07/17/2007 |
| 7155393 | Method for establishing fixation employing speech recognition The present invention provides a method for establishing fixation during computerized visual field perimetry, requiring the subject to verbally identify the symbol employed as fixation targets as they each appear. Speech recognition techniques are then employed to e... | 12/26/2006 |
| 6944330 | Interactive computer-aided diagnosis method and system for assisting diagnosis of lung nodules in digital volumetric medical images A computer-assisted diagnosis method for assisting diagnosis of anatomical structures in a digital volumetric medical image of at least one lung includes identifying an anatomical structure of interest in the volumetric digital medical image. The anatomical structur... | 09/13/2005 |
| 5870169 | Human eye visual field testing device A device for examining the visual field of the human eye which includes a cup-shaped screen, onto the base of which one or several test marks are projected, and usable for both kinetic and also static perimetry testing and offers test marks of a uniform s... | 02/09/1999 |
| 5864384 | Visual field testing method and apparatus using virtual reality A method and apparatus are disclosed for using Virtual Reality for testing and quantifying visual information from the eye, the visual pathways, and the brain. Head-gear configuration allows the patient to observe a field of view into which sequenced test... | 01/26/1999 |
| 5717481 | Perimetric measurement apparatus for measuring characteristics of X ganglion cells An apparatus for measuring a visual field of a patient, especially characteristics of X ganglion cells, displays a series of targets to a patient. A ramp stimulus is used to measure characteristics of X ganglion cells. A target size setting device sets ta... | 02/10/1998 |
| 5534953 | Training device for the therapy of patients having perception defects A training device for the therapy of, in particular, brain-damaged patients having perception defects, includes a large number of signalers (6) arranged on one surface (4) for the production of perceptual stimuli, a marking element that is firmly attached... | 07/09/1996 |
| 5463431 | Perimeter A perimeter capable of objectively adding useful testing points without relying on an operator's intuitional judgment, and capable of performing a reliable test of the field of vision without imposing a useless burden on a subject. The perimeter includes ... | 10/31/1995 |
| 5461435 | Method and an apparatus for checking the thresholds of a subject's perception of visual stimuli In a method of checking the threshold values of a subject's perception of visual stimuli, for each one of a selection of test series, the estimated error of a threshold value estimate of the test series is used to judge whether the test series is to be co... | 10/24/1995 |
| 5459536 | Apparatus and method for automated perimetry An apparatus and method for automated perimetry. A patient interface is adjustable with respect to a previously positioned patient rather than requiring the patient to position him or herself with regard to the perimeter. Fine adjustment of the patient in... | 10/17/1995 |
| 5412561 | Method of analysis of serial visual fields A method of analyzing serial automated visual field data calculates a total field vector of the threshold sensitivity of points in a visual field and compares the total field vector with a calculated normal field vector for a given patient. The vector ang... | 05/02/1995 |
| 5323194 | Perimeter with non spherical bowl A perimeter is disclosed in which the projection surface of the bowl includes a hemispherical section bounded by a cylindrical perimeter to impart to the interior projection surface of the instrument a "bullet shaped" profile. The perimeter of preferred d... | 06/21/1994 |
| 5235360 | Automatic perimeter The present invention discloses an automatic perimeter capable of easily adding or deleting the inspecting points. The present invention includes: target mark exhibiting means exhibiting a target mark at an inspecting point where an exhibiting position is... | 08/10/1993 |
| 5220361 | Gaze tracking for field analyzer A field test apparatus is disclosed which is interactive both in the automated positioning of trial lenses (used to correct the patient's focal distance to the tester hemispherical projection screen) as well as providing automatic gaze direction determina... | 06/15/1993 |
| 5187507 | Method of and apparatus for diagnosing peripheral field defects and other peripheral retinal damage A method of diagnosing glaucomatous field defects of particular use in diagnosing the early stages of glaucoma and ocular hypertension is disclosed. The method comprises displaying an image comprising an annulus of a first color on a background of a secon... | 02/16/1993 |
| 5108170 | Perimetric instrument The present invention relates to a perimetric instrument for measuring a range of a visual field of an eye of a man, and more particularly to a perimetric instrument which includes an abnormal visual field pattern analogical inferring section using a mult... | 04/28/1992 |
| 5066117 | Perimeter A perimeter has a predetermined index to be projected onto a fundus of an eye to be examined and an index projection imaging optical system which can form an intermediate image of the index in front of the eye. An optical system as being at least a part o... | 11/19/1991 |
| 5061059 | Self-detection glaucoma test method A method for the detection of glaucoma which permits the early detection of glaucoma without expensive equipment or a technician. The device for the method comprises a planar surface having a fixation target thereon for focusing a test eye during testing,... | 10/29/1991 |
| 5050983 | Visual testing method and apparatus Method and apparatus for visual testing. In one embodiment, for perimetry testing, the method uses threshold light-stimulus values determined at multiple seed locations in a visual field to calculate expected stimulus threshold values at locations which a... | 09/24/1991 |
| 5048947 | Process for measuring eye movement An improvement is described in regard to a target which is useful in a process for measuring eye movement of a subject. The target includes a support member with a flat or planar bottom surface which can rest upon the top edge of the arcuate member which ... | 09/17/1991 |
| 5035500 | Automated ocular perimetry, particularly kinetic perimetry A first light is moved and illuminated by an x-y plotter mechanism on a rear projection screen under computer control so as to be continuously fixated by an eye of a test subject. The computer also causes one or ones of fixed-position second lights, typic... | 07/30/1991 |
| 5024519 | Apparatus and method for visual-field testing Apparatus and method for visual-field testing. The apparatus includes an ocular device which fits over a subject's eye and which has a cavity-like inner surface dimensioned to encompass the subject's visual field. The ocular device is constructed to provi... | 06/18/1991 |
| 4971434 | Method for diagnosing deficiencies in and expanding a person's useful field of view A method for diagnosing deficiencies in and expanding the size of a person's "Useful Field Of View" (UFOV). The UFOV is determined by the eccentricity (in degrees of visual angle) at which peripheral targets (presented within an embedding context) can be ... | 11/20/1990 |
| 4871247 | Cornea-borne image and light display device A cornea-borne image and light display device (10) comprising a pair of scleral-rider devices (10), (20) similar to contact lenses, which mount on the corneas of the viewer's eyes to present images within the viewer's eyes. The images to the devices is su... | 10/03/1989 |
| 4813779 | Perimeter A perimeter having an image projection system which projects an undistorted line target across the full range of a patient's field of vision is disclosed. The image projection system includes a projector, a bundle of optical fiber elements, and lenses ass... | 03/21/1989 |
| 4804262 | Automatic perimeter An automatic perimeter comprising stimulus presentation unit for presenting stimuli to examine a patient's eyesight, an examination program memory for memorizing a plurality of examination programs which present stimuli under different presentation condit... | 02/14/1989 |
| 4739410 | Superimposed analog video image on plotted digital field tester display In an eye field tester, a vidicon camera observes the eye being tested and relays the resultant low light level image to the periphery of a digital display. The digital display contains both an image of the eye on the periphery and the plot of the visual ... | 04/19/1988 |
| 4685784 | Method for controlling fixation of a patient's eye during perimeter measurements A method for controlling the fixation of the eye of a patient during measuring of the sensitivity of the retina of the eye using a perimeter tester having a plurality of spaced testing light points of adjustable brightness, including the steps of adjustin... | 08/11/1987 |
| 4679920 | Automatic perimeter An automatic perimeter automatically presenting stimuli in a plurality of conditions, in which the presentation of stimuli can be readily stopped by an operator during the presentation, and an accurate examination of eyesight is carried out in accordance ... | 07/14/1987 |
| 4675736 | Superimposed analog video image on plotted digital field tester display In an eye field tester, a vidicon camera observes the eye being tested and relays the resultant low light level image to the periphery of a digital display. The digital display contains both an image of the eye on the periphery and the plot of the visual ... | 06/23/1987 |
| 4626090 | Cupola-type ophthalmological apparatus the visual field and the electrophysiological examination of the human eye This invention relates to a cupola-type visual stimulation ophthalmological pparatus for examining the visual field of a patient and performing electrophysiological examinations. It comprises a projection screen consisting of the inner surface of a hemisph... | 12/02/1986 |
| 4561738 | Field tester A field tester wherein a patient's tested eye is located at the center of an interior hemisphere defining a projection surface and wherein a light spot is projected onto said surface from an eccentric location is disclosed. Optics in common with the proje... | 12/31/1985 |
| 4558933 | Method and apparatus for uniform background in visual field testing devices A method and apparatus for providing a uniform testing field for visual field mapping includes a concave viewing screen and a plurality of selectively illuminated test points spaced thereabout. A testing device selects test points randomly and sequentiall... | 12/17/1985 |
| 4490023 | Arrangement for test mark positioning in spheric perimeters The invention relates to an arrangement for test mark positioning in spheric perimeters particularly for use in ophthalmological examinations. A semi-spherical perimeter screen has a central portion upon which a fixed mark is projected by a double project... | 12/25/1984 |
