Abstract: A three-dimensional image device for providing an improved sense of immersion includes: a moving stage that includes a seat on which a viewer sits and a seat moving mechanism for moving the seat; a first transparent curved display located in front of the viewer and having a curved surface shape that is concave in the direction in which the viewer watches the first curved display, wherein the seat moves according to a first displayed image; and a second curved display located behind the first curved display and having a curved surface shape that is concave in the direction in which the viewer watches the second curved display, wherein the second curved display displays a second image overlapping the first image. Accordingly, it is possible to enhance the three-dimensional effect of a three-dimensional image, to increase a sense of immersion, and to improve a sense of realism.

Abstract: Provided is a cell-level retinal disease detection apparatus including a light imaging means configured to emit light to an eyeball and a light processing means which receives light reflected by the eyeball and processes and compensates light for an astigmatism aberration thereof which occurs at the eyeball to compensate. Here, the light processing means includes a wavefront sensor which senses the astigmatism aberration of the reflected light which occurs due to the eyeball and a light compensation mirror which compensates the light based on the sensed astigmatism aberration, and compensates for a difference in the astigmatism aberration to detect a disease of a retina of the eyeball.

Abstract: An autostereoscopic display device comprises a display panel and a lenticular array provided over the display panel. The lenticular array comprises an array of lenticular lenses each having a parallel elongate axis and arranged side by side in a pitch direction. The display panel comprises a shutter type display, with a transition between light modulating state involving movement of the light modulating medium generally in a direction perpendicular to the lenticular pitch direction.

Abstract: A therapeutic device comprising a first visual signaling element, a second visual signaling element positioned separately from the first visual signaling element, and a third visual signaling element positioned between the first and second visual signaling elements. A control apparatus controls the first, second and third signaling elements, and is arranged to alternately activate the first and second visual signaling elements for a first period of time, and to activate the third visual signaling element for a second period of time subsequent to the first period of time.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.

Abstract: An apparatus and method for outputting view images by tracking a gaze of a user are provided. The image processing apparatus estimates movement of a gaze of a user using a camera, and determines an output order of view images according to the gaze movement.

Abstract: An image display apparatus includes a display unit capable of performing a stereoscopic view display of a first image utilizing a disparity of human being, an image processing unit performing processing which changes a depth range in the stereoscopic view display on the first image, and a display controlling unit making the display unit to display the first image on which the processing is performed.

Abstract: A method for determining an optimal eyeglass lenses design for a viewer (1) comprising the successive steps of: showing the viewer (1) a stereoscopic scene including optical effects of a first lens design;—introducing a relative movement between the viewer (1) and the shown stereoscopic scene, said scene being shown with optical effects of the first lens design; expressing the viewer's opinion; showing the viewer (1) a stereoscopic scene including optical effects of a modified lens design; introducing a relative movement between the viewer (1) and the shown stereoscopic scene, said scene being shown with the modified lens optical effects; expressing again the viewer's opinion; repeating the three last steps up to viewer's satisfaction. A system for customizing vision correction suitable to implement said method. Related computer program for dynamically calculating a stereoscopic image. Related computer program for actuating an electro-active component.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.

Abstract: An apparatus and method are disclosed that provide for establishing and/or improving binocular vision by adaptation of perceptual motor learning for the visual system of a patient suffering of a binocular vision disorder. The apparatus has a set of two units, one for respectively eye, for manipulation of a vision parameter of the visual presentation, e.g. picture, movie, image. To control the visual presentation on respectively unit a processing unit is connected. The processing unit is adapted to determine a boundary value of a first and/or second vision parameter for the first and/or second manipulation of the first and second unit, where binocular vision disappears for the patient. Furthermore, the processing unit controls at least one vision parameter by manipulating, including oscillating or fluctuating, it within a first range, the first range having a maximum value that is less than the boundary value, for the perceptual motor learning.

Abstract: An image display device including an image display panel configured to display a 2D image and a 3D image, a driving circuit configured to apply a data voltage of a 2D data format or a data voltage of a 3D data format to the image display panel, a controller configured to control the driving circuit in a 2D mode for displaying the 2D image or a 3D mode for displaying the 3D image, and a patterned retarder including a first retarder and a second retarder that are arranged line by line, the patterned retarder configured to divide the 3D image from the image display panel into a first polarization component and a second polarization component, the patterned retarder being aligned so that boundary portions of the first and second retarders are positioned in a center of pixels positioned on odd-numbered horizontal lines or even-numbered horizontal lines of the image display panel.

Abstract: A visual function testing device includes: a visual target image presentation unit that presents a visual target image; a visual target image rendering unit that renders the visual target image to be presented on the visual target image presentation unit; a visual function test item selection unit that selects a visual function test item; a visual target image generation unit that generates a visual target image corresponding to the test item selected by the visual function test item selection unit; a viewpoint distance input unit that inputs a distance between the visual target image presentation unit and a viewpoint of an observer; and a visual angle input unit that inputs an angle to be made by the visual target image and the viewpoint of the observer. Based on the viewpoint distance and the visual angle, a display size and display position of a visual target image are calculated.

Abstract: A learning-based visual attention prediction method is disclosed. The method includes a correlation relationship between the fixation density and at least one feature information being learned by training, followed by a test video sequence of test frames being received. Afterward, at least one tested feature map is generated for each test frame based on the feature information. Finally, the tested feature map is mapped into a saliency map, which indicates the fixation strength of the corresponding test frame, according to the correlation relationship.

Abstract: An optotype presenting apparatus for presenting an optotype used to test a visual function of an examinee includes: an optotype presentation part configured to present the optotype in a predetermined presentation region; a control unit configured to allow a test optotype to be presented in the optotype presentation part, the test optotype including a stereoscopic vision test optotype that generates a parallax so as to be seen by the examinee as floating or sinking from a predetermined reference plane; and an optotype splitting unit configured to split the test optotype presented in the optotype presentation part into an optotype for a left eye and an optotype for a right eye to present the test optotype to right and left eyes of the examinee, wherein the test optotype includes a guide optotype for guiding the examinee to see the stereoscopic vision test optotype stereoscopically.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.

Abstract: Positioning control relating to a two-aperture stop necessary for stereoscopic photography can be performed accurately and securely using a simple, inexpensive, compact, and lightweight structure. The apparatus comprises a two-aperture stop (28) provided with two stop apertures (28a, 28b), and a shutter plate (302) for opening and closing one of the two stop apertures. The two-aperture stop (28) is moved so as to intersect with an optical axis so that in monocular photography the two-aperture stop is positioned in a first position in which the stop aperture (28b) is disposed substantially at the center of the optical axis and so that in stereoscopic photography it is positioned in a second position in which the two stop apertures (28a, 28b) are disposed off-center from the optical axis.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.

Abstract: An optometric apparatus for a subjective binocular visual performance test includes right and left test units including right and left housings, a plurality of optical elements disposed in the right and left housings, right and left test windows provided to the housings, in which desired optical elements selected from the optical elements are to be placed and through the selected optical elements, an optotype is presented to examinee's right and left eyes by an optotype presenting apparatus, right and left polarization plates having polarization axes perpendicular to each other and arranged to be placed in the test windows, and right and left protective covers arranged to be placed in the test windows at a side facing the optotype presenting apparatus and having polarization optical characteristics of changing circularly polarized light that passes through the right and left protective covers into linearly polarized light having polarization axes perpendicular to each other.

Abstract: An optotype presenting apparatus for presenting an optotype used to test a visual function of an examinee includes: an optotype presentation part configured to present the optotype in a predetermined presentation region; a control unit configured to allow a test optotype to be presented in the optotype presentation part, the test optotype including a stereoscopic vision test optotype that generates a parallax so as to be seen by the examinee as floating or sinking from a predetermined reference plane; and an optotype splitting unit configured to split the test optotype presented in the optotype presentation part into an optotype for a left eye and an optotype for a right eye to present the test optotype to right and left eyes of the examinee, wherein the test optotype includes a guide optotype for guiding the examinee to see the stereoscopic vision test optotype stereoscopically.

Abstract: An apparatus is provided for finding and defining a prescription for prism glasses for Diplopic patients and AMD patients whose Macula and Fovea are damaged enough that the patients have double vision, but, still have relatively good acuity. The apparatus positions lenses in infinitely variable locations horizontally and vertically in front of the patient's eyes until the patient indicates that he/she sees the two images fuse. The H-V coordinates of the location of the Optic center of each lens axis in relation to the patient's visual axis are decentration dimensions indicated for each eye by the H and V dials on the apparatus and are thus the basis for an accurate prescription for prism lenses.

Abstract: An optotype presenting apparatus, by which red and green optotypes can be visually perceived independently by right and left eyes even if red filters and/or green filters have different wavelength transmission characteristics, comprises a color display, a unit having a switch for selecting a test chart including visual acuity and red-green binocular visual performance test charts, wherein the binocular test chart includes the optotypes and is used in the test performed with the filters in front of the eyes, a memory storing color adjustment data in which at least one of color tones of the optotypes is varied with the characteristic of one of the filters, a unit for inputting a signal for selecting one of the data, and a unit controlling the display to display the selected chart and adjusting the tones by reading the selected data from the memory when the binocular test chart is selected.

Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.

Abstract: The present invention relates to an ophthalmic diagnostic apparatus. The apparatus comprises: a display means (12) arranged to be worn in proximity to a user's eyes and arranged for displaying images relating to at least one visual function test to a user; a first user interface (14) for providing instructions to a user relating to said at least one visual function test and a second user interface (16) for receiving responses from said user in relation to said at least one visual function test; storage means (22) for storing data relating to said at least one visual function test; control means (18) for transferring said data relating to said at least one visual function test to said display means and said user interface; and output means for outputting a signal responsive to the user responses so as to assist with ophthalmic diagnosis.

Abstract: An eye examination apparatus 100 of the present invention comprises, a refractive power measuring section 50 for measuring refractive powers of subject eyes E of a subject in a binocular viewing state, an eye chart presenting section 30 for presenting a subjective measurement eye chart to be observed by the subject, a correcting section 40 for correcting the subject eyes by referring to data on the refractive powers measured with the refractive power measuring section 50 and using the subjective measurement eye chart presented in the eye chart presenting section 30 and an optical characteristics measuring section 10 for subjectively measuring an optical characteristic of the subject eyes E corrected or being corrected with the correcting section 40 in a state where the subject is binocularly viewing the subjective measurement eye chart.

Abstract: An optotype presenting apparatus capable of presenting an optotype having a high degree of flexibility to an examinee's eye while a production cost of the apparatus is curbed comprises a main body comprising an optotype forming unit comprising first and second displays displaying optotypes, and a beam combiner combining optical paths of the displays, the optotype forming unit adjusting, if optotype light bundles have polarizing axes, the axes, and providing, if optotype light bundles have no polarizing axis, polarizing axes to the bundles, whereby the bundles form optotypes having the perpendicular polarizing axes, and a projection optical system for projecting the light bundles onto the eye at a test distance, an optotype selecting unit, and a display control unit controlling the displays to display binocular-vision-test optotypes if they are selected, and controlling one of the displays to display a visual-acuity-test optotype if it is selected.

Abstract: A model eye that models the optical characteristics of a human eye and is endowed with a grayscale pattern on the ocular fundus model surface is stereographically photographed with a parallax via a stereo photographic optical system. Photographed images are processed to provide calibration data for correcting the shape distortions of the stereo photographic optical system. The calibration data is used to correct a distortion-affected shape data and parallax images obtained in stereographic photography of the actual ocular fundus of a subject's eye. The shape distortion-corrected parallax image is used for a three-dimensional measurement process and 3D display on a stereo monitor. This allows an accurate three-dimensional measurement to be carried out and an accurate fundus image to be produced. The examiner can accurately evaluate the stereo shape of the ocular fundus of the subject's eye.

Abstract: An optotype presenting apparatus capable of performing a test with accuracy by minimizing differences in manners an optotype is seen by examinees which result from differences in height of eyes among the examinees comprising a display unit comprising pixels having color filters arranged in a longitudinal direction, a polarization optical member comprising first and second optical regions in the form of a longitudinal line corresponding to the arrangement of the pixels which are alternately arranged in a lateral direction, the regions converting light from the display unit into light having polarizing axes perpendicular to each other, an optotype selecting unit, and a display control unit controlling the pixels corresponding to the first regions to display first optotypes of the optotype to be presented to a right or left eye, and controls the pixels corresponding to the second regions to display second optotypes thereof to be presented to the other eye.

Abstract: An optotype presenting apparatus capable of presenting an optotype having a high degree of flexibility to an examinee's eye while a production cost of the apparatus is curbed comprises a main body comprising an optotype forming unit comprising first and second displays displaying optotypes, and a beam combiner combining optical paths of the displays, the optotype forming unit adjusting, if optotype light bundles have polarizing axes, the axes, and providing, if optotype light bundles have no polarizing axis, polarizing axes to the bundles, whereby the bundles form optotypes having the perpendicular polarizing axes, and a projection optical system for projecting the light bundles onto the eye at a test distance, an optotype selecting unit, and a display control unit controlling the displays to display binocular-vision-test optotypes if they are selected, and controlling one of the displays to display a visual-acuity-test optotype if it is selected.

Abstract: An optotype presenting apparatus, by which red and green optotypes can be visually perceived independently by right and left eyes even if red filters and/or green filters have different wavelength transmission characteristics, comprises a color display, a unit having a switch for selecting a test chart including visual acuity and red-green binocular visual performance test charts, wherein the binocular test chart includes the optotypes and is used in the test performed with the filters in front of the eyes, a memory storing color adjustment data in which at least one of color tones of the optotypes is varied with the characteristic of one of the filters, a unit for inputting a signal for selecting one of the data, and a unit controlling the display to display the selected chart and adjusting the tones by reading the selected data from the memory when the binocular test chart is selected.

Abstract: The present invention relates to improved ophthalmic diagnostic measurement or treatment methods or devices, that make use of a combination of a high speed eye tracking device, measuring fast translation or saccadic motion of the eye, and an eye position measurement device, determining multiple dimensions of eye position or other components of eye, relative to an ophthalmic diagnostic or treatment instrument.

Abstract: An optotype presenting apparatus capable of performing a test with accuracy by minimizing differences in manners an optotype is seen by examinees which result from differences in height of eyes among the examinees comprising a display unit comprising pixels having color filters arranged in a longitudinal direction, a polarization optical member comprising first and second optical regions in the form of a longitudinal line corresponding to the arrangement of the pixels which are alternately arranged in a lateral direction, the regions converting light from the display unit into light having polarizing axes perpendicular to each other, an optotype selecting unit, and a display control unit controlling the pixels corresponding to the first regions to display first optotypes of the optotype to be presented to a right or left eye, and controls the pixels corresponding to the second regions to display second optotypes thereof to be presented to the other eye.

Abstract: In order to examine a degree of monocular diplopia is easily examined in a quantitative manner, a plurality of circular eye marks are seen from a predetermined examination distance with a single eye of a patient to find a particular eye mark whose double vision images are observed to be circumscribed each other, and a degree of monocular diplopia is determined by a view angle of the relevant circular eye mark. Since the eye mark is formed as a circular pattern, a degree of monocular diplopia can be examined irrespective of an axial direction along which double vision images appear.

Abstract: An optometric apparatus 2 according to the present invention comprises a body portion 5r provided with an optical system for a right eye for projecting a chart for the right eye in order to inspect visual function of both eye of an examinee and a body portion 5l provided with an optical system for a left eye for projecting a chart for the left eye, the optical systems for the right and left eyes projecting the same fusion patterns to perform fusion of the both eyes of the examinee.

Abstract: There is described in one embodiment an eye viewing device for viewing a structure of an eye such as a retina. The eye viewing device can include an image sensor. In one embodiment an eye viewing device can be adapted to facilitate both visual viewing of an eye structure and electronic image capture.

Abstract: A stereoscopic opthalmoscope for producing a stereoscopic image of an eye fundus, the stereoscopic opthalmoscope including a light source, for emitting a light beam, a light deflector, optically coupled with the light source, for deflecting the light beam into an eye, thereby illuminating the eye fundus of the eye, a relay lens, optically coupled with the eye, for receiving light beams reflected from the eye fundus, thereby producing a relayed three-dimensional image of the fundus, and a stereoscopic imaging apparatus, optically coupled with the relay lens, for stereoscopically acquiring the relayed three-dimensional image. The stereoscopic imaging apparatus includes a dual aperture element, a pixel array image detector and a lenticular lens layer, optically coupled with the pixel array image detector.

Abstract: The present invention features a method and device for measuring characteristics of the human eye, particularly spherical refractive error. The device comprises a recorded hologram of an array of elements each bearing an identifying indicia. When the reconstructed hologram is viewed by a subject each of the indicia appear at different virtual distances. By indicating which indicia appear to be in focus the spherical refractive error of the eye and the range of accommodation is determined. The indicia are conveniently numbers that indicate dioptres. Also described is an apparatus for working the method. The apparatus can also be used to determine cylinder power and axis, binocular refraction and stereopsis.

Abstract: 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.

Abstract: 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 positioning the subject's head in a fixture; determining the position of the subject's pupils with respect to the fixture; scanning the subject's head with a laser while positioned in the fixture in order to obtain a 3-D model of the subject's head; and providing a helmet liner having an outer surface which is profiled to position it inside a helmet shell. The position of the subject's pupils may be determined by scanning pupil locating features of the fixture. The 3-D model is then used to provide the helmet liner with an inner surface which conforms to the subject's head and is positioned with respect to the outer surface so that the outer surface will have a predetermined position with respect to the subject's pupils. The helmet liner is then fitted in the helmet shell to form a helmet.

Abstract: The present invention provides a viewing apparatus for simulating visual impairment. In one embodiment, the apparatus includes a frame defining a viewing area and first and second lenses supported by the frame. The first lens is disposed in a first region of the viewing area. The second lens is disposed in at least a second region of the viewing area. The first and second lenses have different image distortion patterns. In another embodiment, the apparatus may include frame and a lens supported by the frame. The lens includes a first plurality of image distorting features disposed in a first region of the lens; and a second plurality of image distorting features defined in the first region of the lens.

Abstract: 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 a device or a software program to move the dot for minimizing the apparent movement until a single stationary dot is observed.

Abstract: An adaptive autostereoscopic display system (10) provides an apparatus for conditioning the psychological state, physiological state, or behavior of a subject (12) by displaying a stereoscopic virtual image at a left viewing pupil (14l) and a right viewing pupil (14r). A first set of images (100) is displayed and physiological response measurements are obtained from the subject (12). Based on the response of the subject (12) a personalized image response profile is obtained. Then, in order to condition the psychological state, physiological state, or behavior of the subject (12), a second set of images (102), based on the personalized image response profile is displayed.

Abstract: The disclosed content relates to a three dimensional real-time imaging apparatus of the ocular retina, which is associated with the most frequent ophthalmic diseases. In the present invention, the laser rays are formed into two dimensional ray surface sequentially with the time by using a polygon mirror motor and galvanometer and irradiated on the almost transparent retina through the pupil. The optical system is so arranged that the incident angles, relative to a retina, of the laser beams irradiated on the retina at respective moments may agree with the output angles of imaginary lines of the same laser rays reflected from a retina in both the vertical and horizontal direction. Further, the laser sequential single lines lit on the retina are caused to correspond to the sensors array, so that two dimensional retinal surface elements as many as the sensors of the sensor array are imaged in real time three dimensions.

Abstract: An autostereoscopic image display apparatus (10) that adapts to sensed feedback data about an observer (12) in order to conform its operation to adapt to the position and intraocular dimensions of the observer. The apparatus (10) uses ball lens projection optics to provide wide field-of-view pupil imaging, providing separate left- and right-eye images to the left and right eye pupils (14l,14r) of the observer (12), respectively. The apparatus (10) compensates for positional variables such as variable interocular distance and variable observer distance from projection optics. At least one observer feedback sensor (52) is disposed to provide feedback data about the observer (12). The feedback data can be used by a control logic processor (50) that, based on the data, adjusts left- and right viewing pupil forming apparatus (36l,36r). The control logic processor (50), based on sensed feedback data, may also vary image content or provide other stimuli such as smell, movement, and sound.

Abstract: 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 the cubic space. The first image is located at the intersection of two perpendicular horizontal planes and a vertical plane perpendicular to said two horizontal planes and the second image is located at the intersection of two perpendicular horizontal planes and a vertical plane perpendicular to said two horizontal planes. A subject to be tested for depth perception is directed to move the images into convergence in the center of the cubic space.

Abstract: An autostereoscopic image display apparatus (10) that adapts to sensed feedback data about an observer (12) in order to conform its operation to adapt to the position and intraocular dimensions of the observer. The apparatus (10) uses ball lens projection optics to provide wide field-of-view pupil imaging, providing separate left- and right-eye images to the left and right eye pupils (14l,14r) of the observer (12), respectively. The apparatus (10) compensates for positional variables such as variable interocular distance and variable observer distance from projection optics. At least one observer feedback sensor (52) is disposed to provide feedback data about the observer (12). The feedback data can be used by a control logic processor (50) that, based on the data, adjusts left- and right viewing pupil forming apparatus (36l,36r). The control logic processor (50), based on sensed feedback data, may also vary image content or provide other stimuli such as smell, movement, and sound.

Abstract: A method for the autostereoscopic representation of images on a screen (12), for which the image information for the right eye (RA) and the left eye (LA) of a viewer is represented segmentally interleaved on the screen and a barrier (18; 18′) is disposed, so that, for each eye, in each case only the image information associated with it is visible, wherein in each segment (28), in addition to the image information (L12-L15; L214 L5) assigned to this segment, a copy of a portion of the image information (L11, L16; L1, L6) is presented, which is assigned to one or both adjacent segments (32; 30″) for the same eye.

Abstract: 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 index image is inputted by a person to be inspected in order that a predetermined reference position of the reference image and the display position of the index image coincide with each other, the display position of the index image is moved on the basis of the movement command. The amount of deviation of the index image from the reference position of the reference image is calculated by the person to be inspected visually recognizing that the reference position of the reference image and the display position of the index image coincide with each other when confirmation input indicating that the person to be inspected visually recognizes the coincidence is provided by the person to be inspected.

Abstract: 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.RTM. slide viewer. Two viewers are utilized, with the viewers using identical "4-Dot" stereo pairs but differing in that the right and left images are transposed. A reel mount in the View-Master viewer is mounted with a graded series of neutral density filters, with the filters being arranged so that the filter density increases over one eye as the reel is advanced with a lever, until the color of the solid circle changes. Use of the two viewers permits ready identification of an eye with nerve conduction defect, with one viewer measuring right eye defects and the other measuring left eye defects.

Abstract: An inversion spring unit for a thermal overload relay and method for making the same, comprising a support member, a spring plate having a first end, a second end, an elongated central axis, and first and second side portions disposed on opposite sides of the central axis, the side portions being bent towards each other at the first end and attached at the first end to the support member for causing the second end of the spring plate to curve in a first direction away from the central axis, and a lug disposed intermediate the first and second ends for selective engagement with a drive portion to cause the second end of the spring plate to curve in a second direction opposite the first direction.

Abstract: The present invention relates to improved ophthalmic diagnostic measurement or treatment methods or devices, that make use of a combination of a high speed eye tracking device, measuring fast translation or saccadic motion of the eye, and an eye position measurement device, determining multiple dimensions of eye position or other components of eye, relative to an ophthalmic diagnostic or treatment instrument.