Abstract: A near eye display system including a display screen, a graphic processing unit, a lens group, a focal length adjustment device, an interpupillary distance adjustment device, a detection unit, and a control unit is provided. Positions of a left-eye image and a right-eye image to be displayed on the display screen may be adjusted based on lateral displacement amounts of a left-eye lens and a right-eye lens, such that centers of the left-eye image and the right-eye image are respectively aligned with centers of the left-eye lens and the right-eye lens. Sizes (magnification) of the left-eye image and the right-eye image to be displayed on the display screen may be adjusted based on longitudinal displacement amounts of the left-eye lens and the right-eye lens, such that sizes of a visual left-eye image and a visual right-eye image seen by a user are identical. Operation methods thereof are also provided.

Abstract: The parallel multi-region imaging device includes a multi-focus generation module, a spatial demodulation module, and a detection module. The multi-focus generation module is configured to modulate illumination light to generate a plurality of focuses in an object-side, and to form a plurality of different illumination regions, thereby generating multiple paths of signal light through a sample to be imaged. The spatial demodulation module is configured to make spatial energy distribution of each path of signal light no longer overlap or make an overlapping region smaller than a target requirement. The detection module is configured to independently detect each path of signal light passing through the spatial demodulation module, so as to implement parallel multi-region imaging.

Abstract: In one implementation, a method includes: determining an interpupillary distance (IPD) measurement for a user based on a function of depth data obtained by the depth sensor and image data obtained by the image sensor; and calibrating a head-mounted device (HMD) provided to deliver augmented reality/virtual reality (AR/VR) content by setting one or more presentation parameters of the HMD based on the IPD measurement in order to tailor one or more AR/VR displays of the HMD to a field-of-view of the user.

Abstract: An image display apparatus is worn by a user in such a manner that a first image and a second image are displayed on display units corresponding to both of the user's eyes, wherein, at corresponding positions in the first and the second images, the display units display test patterns including the same graphics that enable the user to adjust the wearing position of the image display apparatus.

Abstract: The present disclosure discloses methods, systems and modules for adjusting an interpupillary distance of a head-mounted 3D display. The method comprising: receiving a signal to start the head-mounted 3D display, after receiving the signal, scanning an interpupillary distance of a user wearing the head-mounted 3D display; setting centers of left and right eye images of a display screen based on the interpupillary distance of the user, wherein the centers of the left and right eye images are symmetrical about a physical midline of the display screen; and playing the same left and right eye guiding images by taking the centers of the left and right eye images as their centers, respectively, on the display screen to guide the user to adjust positions of left and right eye lenses. A head-mounted 3D display adopting the technical solution of this invention has an interpupillary distance adjustment function, making it suitable for different users.

Abstract: In embodiments of an imaging structure with embedded light sources, an imaging structure includes a silicon backplane with a driver pad array. The embedded light sources are formed on the driver pad array in an emitter material layer, and the embedded light sources can be individually controlled at the driver pad array to generate and emit light. A conductive material layer over the embedded light sources forms a p-n junction between the emitter material layer and the conductive material layer. Micro lens optics can be positioned over the conductive material layer to direct the light that is emitted from the embedded light sources. Further, the micro lens optics may be implemented as parabolic optics to concentrate the light that is emitted from the embedded light sources.

Abstract: A variable focus stereoscopic display system includes first and second lenses positioned between a viewer's eyes and a stereoscopic display that alters the distance to the focus plane of the viewer based on the vergence of the viewer's eyes while viewing the stereoscopic display.

Abstract: A device for wide angle viewing, comprising of goggles made of opaque material which has been installed with at least one Vector Light Source (VLS). The vector light source is a light source which emits a narrow light beam only in one pointing direction. The set of said vector light sources are divided into at least one subset. Each subset has a center location. All the vector light sources included in each said subset are pointed at the same center location of their subset. Each such subset could be made to display an image. Another kind of said viewing device enables viewing of a pair of stereoscopic images by having two subsets of vector light sources each with a center location. The two center locations can be adjusted to fit the locations of the pupils of the left and right human eyes.

Abstract: The present invention relates to a display system for stereoscopic viewing, the system comprising a binocular viewing device, information content, and a display source. The display system is remarkable in that it further comprises electronic components for implementing pieces of software for optimizing the binocular viewing device, the information content, and the display source, said pieces of optimization software together forming a loop for managing various parameters. The wearer of said device can thus view the information content via the binocular viewing device under conditions that are best adapted to the wearer's physiology.

Abstract: An autostereoscopic display apparatus is provided and includes a first lenticular lens array, a second lenticular lens array, an optical diffuser layer, an image projector module and a switch unit. The optical diffuser layer is disposed between the first lenticular lens array and the second lenticular lens array. Multiple image beams generated by the image projector module are projected to a plurality of observing regions on an observing plane through the first lenticular lens array, the optical diffuser layer and the second lenticular lens array. The switch unit rotates the second lenticular lens array in accordance with the autostereoscopic display apparatus operates situated at a three-dimensional (3D) display mode or a two-dimensional (2D) display mode.

Abstract: In embodiments of eyebox adjustment for interpupillary distance, a first optical lens receives light of an image at a projected orientation of the light, and deviates the light by a deviation angle from the projected orientation of the light. A second optical lens receives the deviated light of the image from the first optical lens at the deviation angle, and alters the deviated light back to the projected orientation of the light for viewing the image. Left and right eyeboxes align with respective left and right eyes that view the image, and a distance between the left and right eyeboxes approximately correlates to an interpupillary distance between the left and right eyes. The light of the image can be laterally shifted to increase or decrease the distance between the left and right eyeboxes.

Abstract: An image signal storing unit stores an image signal provided from the outside. An image processing unit appropriately processes the image signal stored in the image signal storing unit in accordance with the instruction from an adjusting unit. A projecting unit projects, onto a display area, light corresponding to an image created by the image processing unit. A display size determination unit computes the display size of the picture plane displayed on a screen based on an image captured by the camera provided adjacent to the projection-type video-image display device. The display size determination unit then determines whether or not the display size of the picture plane is equal to or larger than a predetermined upper-limit size.

Abstract: In an embodiment, two retro-focus lens systems are configured to provide a stereoscopic image. In an embodiment, each retro-focus lens system has a low power negative lens group with a long focal length. In an embodiment, each retro focus lens system has an optical component mounted with three points. One optical component is associated with a first of the two retro-focus lenses. The three points may be loosened, such that the optical component may be adjusted in a first direction, which in turn moves the corresponding image in the opposite direction. Another optical component is associated with the other retro focus lens system. The other optical component has a second set of points that may be loosened such that the other optical component may be adjusted in a second direction that is perpendicular to the first direction, moving the corresponding image in the opposite direction from the second direction.

Abstract: The present invention discloses a stereoscopic image display system and a method of controlling the same. An eye tracking module locates current 3D spatial positions of the viewer's eyes, and generates the information of both left and right eyes' current 3D spatial positions. A control module controls a display device that can alter the direction of the light outputted, and outputs images on the display device in time multiplex mode. The light containing the left eye image is outputted to the position of left eye instead of right eye at one time point, and the light containing the right eye image is outputted to the position of right eye instead of left eye at another time point, so that a stereoscopic image is perceived according to the parallax theory. The present invention enlarges the visual range of stereoscopic image and achieves a better stereoscopic image visual experience for viewers.

Abstract: A head-mounted display includes a left-eye display unit configured to display a left-eye image, a right-eye display unit configured to display a right-eye image, a display control unit configured to control screen display of the left-eye display unit and the right-eye display unit, and an interpupillary distance adjustment mechanism configured to adjust an interpupillary distance between the left-eye display unit and the right-eye display unit. In the head-mounted display, the display control unit allows the left-eye display unit and the right-eye display unit to display a signal pattern for interpupillary distance adjustment when the interpupillary distance is adjusted by the interpupillary distance adjustment mechanism.

Abstract: In an embodiment, two retro-focus lens systems are configured to provide a stereoscopic image. In an embodiment, each retro-focus lens system has a low power negative lens group with a long focal length. In an embodiment, each retro focus lens system has an optical component mounted with three points. One optical component is associated with a first of the two retro-focus lenses. The three points may be loosened, such that the optical component may be adjusted in a first direction, which in turn moves the corresponding image in the opposite direction. Another optical component is associated with the other retro focus lens system. The other optical component has a second set of points that may be loosened such that the other optical component may be adjusted in a second direction that is perpendicular to the first direction, moving the corresponding image in the opposite direction from the second direction.

Abstract: A binocular device including two ocular units and directing means to allow a user to view a display, the display being moveable when the distance between the ocular units is varied for interocular adjustment to maintain focus on the display. Instead of the display being movable, focus can be maintained by the inclusion in the directing means of optical relays for transmitting parallel light. In a further embodiment, a sensor is provided, the output of which is directed for viewing via the ocular units. In yet another embodiment, image capture means are provided for recording the image from the ocular units.

Abstract: A stereoscopic viewer includes a transverse rack; left and right sections comprising a fixed eyepiece, a turn plate, a pinion engaging teeth of the track and rotatably disposed on the turn plate, and an objective rotatably disposed on the pinion; and an adjustment screw engaging the teeth of the rack. A first beam of light coming from one of human eyes reaching and being reflected by the eyepiece of the left section, reaching and being reflected by the objective of the left section, and projects onto a left portion of a display. A second beam of light coming from the other one of the human eyes reaching and being reflected by the eyepiece of the right section, reaching and being reflected by the objective of the right section, and projects onto a right portion of the display. A 3-D image is given to the human eyes on the display.

Abstract: A visual image system is constructed as including: a three-dimensional visual image reproducer for transmitting a three-dimensional video signal; a parallax quantity detecting section for detecting a parallax quantity in the three-dimensional video signal from the three-dimensional visual image reproducer; a fatigue measure estimating section for estimating the degree of fatigue based on the detected parallax quantity and outputting an image switching signal correspondingly to a fatigue measure estimating quantity; a 3D/2D image switching section for providing an output by switching between three-dimensional and two-dimensional images based on the image switching signal; and an image display section for displaying a three-dimensional image or a two-dimensional image. The visual image system thereby fulfills the capability of suitably controlling the degree of three-dimensionality of stereoscopic images by inferring from the inputted video signal the degree of effects likely to be produced on the observer.

Abstract: A stereoscopic image pickup system for obtaining parallactic images includes a pair of front optical components, the pair of front optical components respectively including a pair of reflecting members capable of rotating around respective predetermined axes and having a reflecting function, and a pair of amount-of-light control members arranged to respectively vary amounts of transmission of light fluxes coming from the pair of reflecting members alternately in a time-series manner, an optical member arranged to superpose respective optical axes of the pair of front optical components on each other, a rear optical component having an optical axis coinciding with the superposed optical axes of the pair of front optical components and having a magnification varying function, and a controller for controlling an amount of parallax of parallactic images by using the pair of reflecting members in accordance with a magnification varying operation of the rear optical component.

Abstract: A visual image system is constructed as including: a three-dimensional visual image reproducer for transmitting a three-dimensional video signal; a parallax quantity detecting section for detecting a parallax quantity in the three-dimensional video signal from the three-dimensional visual image reproducer; a fatigue measure estimating section for estimating the degree of fatigue based on the detected parallax quantity and outputting an image switching signal correspondingly to a fatigue measure estimating quantity; a 3D/2D image switching section for providing an output by switching between three-dimensional and two-dimensional images based on the image switching signal; and an image display section for displaying a three-dimensional image or a two-dimensional image. The visual image system thereby fulfills the capability of suitably controlling the degree of three-dimensionality of stereoscopic images by inferring from the inputted video signal the degree of effects likely to be produced on the observer.

Abstract: A stereo slide mount and a stereo slide viewer in which a pair of right and left film holders are adjusted in either a direction of separation or a direction of approach by a film pitch-adjusting device to enhance the operability.

Abstract: A handheld stereographic book-type device which includes a content support portion (8) configured to position and support stereographic content (1A, 1B), and a stereoscopic viewer (5) configured to enable interocular adjustment. The stereoscopic viewer includes adjustable left and right lenses and respective adjustable occluding apertures to enable perception of stereographic content configured with left and right peripheral monocular fields (FIGS. 7-9, 2DL & 2DR). A viewer pivotal chassis (3) is configured to couple the stereoscopic viewer to the content support portion (8). The viewer pivotal chassis includes a plurality of pivotal axes (3) parallel to a line which bisects the left and right lenses of said viewer to enable the user to visually scan and traverse up and down the length of said content while maintaining focus of said content therewith said viewer (5).

Abstract: A stereo slide mount and a stereo slide viewer in which a pair of right and left film holders are adjusted in either a direction of separation or a direction of approach by a film pitch-adjusting device to enhance the operability.

Abstract: The present invention relates generally to various arrangements of optical and electronic components to form a high-resolution helmet mounted display (HMD) or other compact display device. In particular, the current invention is designed in such a way as to allow it to operate utilizing several different kinds of image generation device and to incorporate many different features including the option of “eye tracking”.

Abstract: A stereo slide mount capable of adjusting perspective feeling of a stereo image into an optimum state, comprising a base frame 3 having a guide groove formed running in the lateral direction, two film holders 2 fitted in the guide groove, and a cover frame 1. Films are mounted on the two film holders 2 on the base frame 3, and the stereo slide mount is mounted on a stereo slide viewer equipped with a cam mechanism for adjusting the gap between the film holders. The pitch between the films is adjusted to obtain an optimum perspective feeling while observing a stereo image, and the cover frame is mounted after the adjustment.

Abstract: A viewing optical instrument includes an objective optical system and an eyepiece optical system such that an object image formed through the objective optical system is magnified and observed through the eyepiece optical system. The viewing optical instrument includes an eyepiece adjusting device which allows the eyepiece optical system to rotate relative to the objective optical system about a rotational axis at which an optical axis of the objective optical system intersects a focal plane formed by the objective optical system. A detector detects an inclination of a surface of a sighting object relative to a plane which is normal to the optical axis of the objective optical system, and a controller control the eyepiece optical system to rotate about the rotational axis in accordance with the inclination detected by the detector.

Abstract: A stereoscopic image sensor may be formed of a single image sensor having a pair of fields formed therein. The fields may be closer to one another than are a pair of left and right image collectors. The close spacing may be achieved by using an image redirector to redirect image information from the spaced apart collectors to the less spaced apart fields on the image sensor. In some embodiments of the present invention, by using a single imaging sensor, a more compact structure may be achieved which may be of lower cost and may enjoy reduced processing complexity. In addition, because a single sensor is utilized, in some embodiments of the present invention, the left and right images may be captured essentially identically.

Abstract: An adjustable, head mountable stereoscopic viewer having a head band to mount the viewer to the user. A tilt bracket is pivotally joined on one end to the head band and at a pivot point on an opposite end to an optical assembly for adjustment of the assembly position to obtain maximum field of view. The optical assembly includes first (left) and second (right) mirror assemblies that receive and direct left and right stereo images from an image source, such as a poster, a TV image, etc., to the corresponding left and right eyes of the user. The left and right stereo images are displayed horizontally at the source, the right image preferably displayed above the left image. Each mirror assembly has two mirrors and an aperture, and functions in a similar manner to a periscope. Adjustment for a range of image sizes and distances is accomplished with a mirror adjustment, provided to vary the tilt of the mirror of one of the assemblies to adjust the overlap of the images.

Abstract: A display device to be worn by the user on his or her head comprising a pair of left and right image display members which are arranged on a frame to be put on a head of a user in a manner enabling them to be moved in a direction toward or away from each other; a pair of left and right lens members on the frame which show virtual images of the images displayed by the image display members to the user, the light axes of which being made substantially parallel to each other at a position on a light path extending from the left image display member to the left eye of the user and at a position on a light path extending from the right image display member to the right eye of the user, in a manner enabling them to be moved in a direction toward or away from each other; and a link mechanism member for variably adjusting the distance in the horizontal direction between the lens members so to adjust the distance in the horizontal direction between the image display members linked with the adjustment of the distance b

Abstract: A stereo slide viewer comprising a stereo slide holder, first and second projection lenses held in a lens holder, first and second focusing plates held by respective first and second focusing plate holders. The lens holder is located between the stereo slide holder and the first and second focusing plate holders. Distance adjusting means are also provided for moving the focusing plates perpendicular to optical axes of the system.

Abstract: A visual effects generator for use with the image output of a video screen provides multiple secondary images and reflections dispersed through a wide visual field, so that the impact of the color and motion of the original image is enhanced. The generator includes a closed housing having a rear panel with an opening secured about the video screen. The housing includes a pair of lobes diverging laterally from the rear panel, with a viewing port disposed in the distal portion of each lobe. Each viewing port may be provided with a detachable hood to shield ambient light, and a closure panel may be secured to occlude either viewing port. A first pair of generally rectangular, planar mirrors are disposed within the housing, the mirrors abutting at confronting edges which are spaced apart from the center of the television screen, and the mirrors diverge obliquely forwardly from the screen.

Abstract: A stereo endoscope has a shaft containing two optical systems which extend through the shaft and are arranged in close proximity to each other and a housing on the proximal end of the shaft for containing an interior holding assembly for a stereo optical device which provides a stereo view into the optical systems. The stereo optical device has on each side a duplicate, mirror-image arrangement having a first deviating prism aligned coaxially with its the associated optical system, a second deviating prism which follows the first prism and again aligns the optical axis of the associated optical system parallel to the direction of observation, and a transparent protective element in the direction of observation. The holding assembly includes a first holding part, which extends transverse to the optical axis of the two optical systems of the endoscope shaft.

Abstract: An apparatus and method for properly aligning, coupling and cropping two stereoscopically complementary pictures which are positioned one above the other. Alignment and holding apparatus includes a base for supporting two stereoscopically complementary pictures, a detachable joining strip with two areas of pressure sensitive adhesive for joining two pictures which is placed in a fixed planar shield with a pair of opposed guide flaps with one non stick surface for holding the joining strip, and a flat, flexible, transparent alignment sheet with grid markings which overlays the pictures and includes cut out areas for manually accessing the pictures for adjusting one picture relative to the other.

Abstract: A stereoscopic retinal camera which enables the stereoscopic observation of the fundus of the eye and is capable of photographing the stereoscopic picture of the fundus by dividing a light beam reflected by the fundus into two light beams and transmitting the two light beams respectively along the light paths of separate image forming optical systems. And according to the stereoscopic retinal camera, each portion of the fundus and the front portion of the eye is photographed by a focus adjustment device, and an inter-image pitch between a right image and a left image of photographing the fundus and/or the front portion of the eye is corrected by an optical correcting device, whereby the inter-image pitch caused by a difference of refracting power or by a change of stereoscopic visual angle is obtainable not to be changed.

Abstract: Stereo multi-vision scope with a pair of visual corn type tubes having an ocular portions and a pair of objects portions such as a conventional binocular type.The ocular portions have not optical lens and the objects portions have multi-image lenses to make a multitude of stereo visual image for viewing distant objects through it.The corn type tubes also have extension and shortening structure to control their respective distance or width in a horizontal state or position.

Abstract: An optical device which provides a three dimensional view of a two dimensional image, such as a television picture. A plurality of mirrors is utilized to present to the two eyes images which are displaced from positions which would normally occur without the interposition of said optical device. As a part of this process, the two images are slightly rotated in opposite directions. When the mirrors are suitably adjusted, the two displaced images appear to merge and form a three dimensional image.

Abstract: Stereoscopic optical apparatus comprising a housing constructed to exclude spurious light sources, first and second optical devices having reflecting surfaces which together form a first pair of optical devices, and third and fourth optical devices having reflecting surfaces which together form a second pair of optical devices. The stereoscopic optical apparatus being such that the first optical device is positioned below the second optical device and the third optical device is positioned below the fourth optical device, the first and third optical devices are inclined a first way and the second and fourth optical devices are inclined a second way. One of the optical devices from the first and second pairs of optical devices being such as to form two optical devices which are level and have their optical center lines separated by a distance, "d", said pairs of optical devices providing left and right views of an object.

Abstract: An apparatus for presentation of apparent three-dimensional images without special viewing glasses is disclosed. A projection system projects right and left stereo images from a stereoscopic slide so that the right stereo image and the left stereo image become superimposed relative to one another on a viewing screen. The viewing screen comprises light transmissive slit-raster members and a light diffusion member. The viewing screen is adapted to allow the right and left stereo images to pass between the opaque raster members and be perceived only by the right and left eyes, respectively, of the viewer as the left image formed in a raster-like manner on the diffusion member is blocked by further opaque raster members and prevented from being perceived by the right eye and the right stereo image also formed in a raster-like manner on the diffusion member is blocked by the further opaque raster members and prevented from being perceived by the left eye.

Abstract: This invention relates to the production of 3-D TV or motion pictures using novel electro-opto-mechanical devices. The system utilizes a continuous panning camera. The images are viewed through photopic and scotopic filters incorporated into a viewer or special lenticular or raster screen. Use of the screen replaces the viewers.

Abstract: An operation microscope including a plurality of objective lenses arranged at different angles with respect to an object to be viewed and a selecting optical system having a function of selecting one of light beams from the objective lenses and enabling the object to be observed at the different angles. Accordingly, a visual field for observation of an object to be operated may be expanded.

Abstract: A stereoscopic viewing apparatus and a related method for providing a three-dimensional effect for a viewer based on a side-by-side display on a conventional video screen of related left and right images that are each horizontally compressed, and a stereoscopic video recording for providing such a side-by-side display. The apparatus transmits the displayed left image to the viewer's left eye and the displayed right image to the viewer's right eye, while horizontally expanding the compressed images and returning them to their original, natural proportions. The displayed side-by-side images both extend along the screen's entire vertical length, such that a three-dimensional effect is provided having the same two-dimensional proportions as the conventional video screen.

Abstract: A method and an apparatus for driving projecting lenses in a stereoscopic projector wherein a pair of projecting lenses are integrally driven so as to match (coincide) two images on a screen and simultaneously focus the images on the screen for producing a stereoscopic image, the apparatus comprising a driving device for moving the projecting lens holders forwardly and backwardly with respect to the screen, and inwardly and outwardly with respect to the optical axis of the screen, with maintaining the projecting lens holders in parallel to the optical axis of the screen so that images-matching and focusing on the screen can be accomplished, thereby avoiding any generation of keystoning phenomenon.

Abstract: A viewing apparatus for use in providing either a three-dimensional image when used to view a side-by-side display on a conventional video screen of related left and right images that are each horizontally compressed, or alternatively for use in providing a wide-angle image when used to view a single horizontally compressed image displayed on a conventional video screen. In providing the three-dimensional image, the apparatus transmits the displayed left image to the viewer's left eye and the displayed right image to the viewer's right eye, while horizontally expanding the compressed images and returning them to their original, natural porportions. The displayed side-by-side images both extend along the screen's entire vertical length, such that a three-dimensional effect is provided having the same two-dimensional proportions as the conventional video screen.

Abstract: This invention relates to a universal stereoscopic viewer that by means of modifying the current lens-slide distance used up to the present, affords any user a sharp, clear three-dimensional vision of a pair of images.

Abstract: A handheld stereographic book-type device which includes a content support portion (8) configured to position and support stereographic content (1A, 1B), and a stereoscopic viewer (5) configured to enable interocular adjustment. The stereoscopic viewer includes adjustable left and right lenses and respective adjustable occluding apertures to enable perception of stereographic content configured with left and right peripheral monocular fields (FIGS. 7-9, 2DL & 2DR). A viewer pivotal chassis (3) is configured to couple the stereoscopic viewer to the content support portion (8). The viewer pivotal chassis includes a plurality of pivotal axes (3) parallel to a line which bisects the left and right lenses of said viewer to enable the user to visually scan and traverse up and down the length of said content while maintaining focus of said content therewith said viewer (5).