180 results about "Both lenses" patented technology

A method and apparatus for three dimensional optical microscopy is disclosed which employs dual opposing objective lenses about a sample and extended incoherent illumination to provide enhanced depth or Z.Iadd.-.Iaddend.direction resolution. In a first embodiment, observed light from both objective lenses are brought into coincidence on an image detector and caused to interfere thereon by optical path length adjustment. In a second embodiment, illuminating light from an extended incoherent light source is detected to the sample through both objective lenses and caused to interfere with a section of the sample by adjusting optical path lengths. Observed light from one objective lens is then recorded. In a third embodiment, which combines the first two embodiments, illuminating light from an extended incoherent light source is directed to the sample through both objective lenses and caused to interfere within a section of the sample by adjusting optical path lengths. The observed light from both lenses is caused to interfere on the image detector by the same optical path length adjustment. .Iadd.In a fourth embodiment of the invention, further spatial structure is introduced into the illumination light. Computational processing is used to enhance lateral or XY resolution as well as depth or Z resolution..Iaddend.

A wide-angle zoom lens with as few as two plastic elements codes the wavefront produced by the imaging system such that the imaging system is substantially invariant to aberrations related to misfocus. Signal processing is used to decode the wavefront to form the final image. A first type of zoom lens configuration uses as few as two lens elements. In this type, image processing may be modified to take into account the positioning of the lenses.

A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The second lens extends across a wearer's eyes when the face protector is worn and the first lens has side portions which extend around at least part of the opposite sides of the face to provide peripheral vision. The lens assembly may be releasably secured in the face plate opening and one or both lenses may be interchangeable with sets of lenses having different properties such as lens shade.

An active lens cover for a device, such as a smart phone with a dual lens camera. The camera lens that faces the user and the camera lens that faces away from the user are not directly behind each other, but are slightly offset. The active lens cover is advantageously in the shape of a “U”, which allows a single cover to be used to protect both lenses. The offset arrangement of the two lenses allows the facing lens be exposed by sliding the lens cover in one direction, and the away lens to be exposed by sliding the lens cover in the opposite direction. When the lens cover is slid to expose the facing camera lens, the camera phone automatically turns ON and enters a pre-selected operating mode. When the cover is slid in the opposite direction to expose the away camera lens, the camera phone automatically turns ON and enters another pre-selected operating mode. The housing of the U-cover includes at least one sensor that tells the device's CPU what hardware to activate. In the preferred embodiment, the user is able to seamlessly switch between transmitting a video feed from either camera during a telephone call.

The embodiment of the invention discloses a binocular camera calibration method and device, an unmanned aerial vehicle and a storage medium. The calibration method comprises: controlling two lenses ofa binocular camera to obtain a first image and a second image in the moving process of a movable object; obtaining original parameters of the binocular camera; calibrating the binocular camera basedon the original parameter, the first image and the second image to obtain a first calibration external parameter; and acquiring position information of the binocular camera, and calibrating the binocular camera based on the position information, the first image and the second image to obtain a second calibration external parameter. A first image and a second image can be obtained in the moving process of the movable object. Calibration is carried out after the position information of the binocular camera is acquired, manual setting of a calibration plate is not needed, the relative position between the movable object and the calibration plate is not needed to be changed to calibrate the binocular camera, the calibration process of the binocular camera is simplified, manual operation is notneeded, and the calibration efficiency of the binocular camera is improved.

To enable evaluation of the binocular performance of spectacle lenses and display of the result of the evaluation, a method and an apparatus for evaluating and indicating the binocular performance of spectacle lenses. Binocular performance indexes indicating the binocular performance of the spectacle lenses to an object point within a visual field when it is observed through specific positions on both lenses are defined. For all object points in the visual field, the binocular performance indexes are derived. An image of the visual field, in which each pixel is assigned a monochromatic luminosity or a set of primary RGB color luminosity according to the value of the binocular performance index for viewing the corresponding object point, is created and displayed.

The invention relates to a method and a device for unfolding the surface of a steel ball on the basis of multiple image sensors. In the method, a linear guide rail is provided; the linear guide rail has gradient; two symmetrical image sensors with the same structure are arranged above two sides of the axis of the linear guide rail respectively and are used for adjusting two image sensor parameters and two camera lens optical parameters to be consistent; the tested steel ball is arranged on the linear guide rail with a groove; the tested steel ball does one-dimensional motion along the linear guide rail with the groove under the force gravity; and when the tested steel ball passes through the downsides of the image sensors, the two image sensors perform continuous image sampling on the tested steel ball. The device comprises the linear guide rail, two brackets and two image sensors, wherein the linear guide rail has gradient and is formed by the groove and arranged in the middle of a workbench; the two brackets are symmetrically arranged at two ends of the workbench and positioned on two sides of the linear guide rail; the top ends of the two brackets are provided with one image sensor respectively; and the camera lenses of the two image sensors correspond to the central axis of the bottom of the linear guide rail. By the method and the device, the surface of the steel ball canbe unfolded at high speed and precisely.

A stereoscopic display system (10) comprising a pair of convergent lenses (14) and a sheet of resilient, transparent material (12) formed into a picture holder (18) and a lens holder (20) joined by a base (16) that holds them erect and parallel for viewing a stereoscopic image pair mounted in the picture holder through the lenses mounted in the lens holder. A median slot (21) extending through the lens holder into an adjacent portion of the base divides these sections into two lens support arms (31) and provides an intervening space shaped to accommodate the viewer's nose and to maintain a clearance space for the resilient approximation of the lens support arms. Adjustments for focus, diopter, interpupillary distance, and stereofield separation and vertical alignment, are made by flexing the lens support arms collectively and differentially in longitudinal and transverse directions. The picture holder is adapted to durably or transiently hold stereograms of various sizes and formats, in the form of prints, transparencies or slides, LCDs or other thin image support media. A second picture can be displayed on the reverse side of the picture holder. The lens holder can accept replacement optics for optics for customization to the user's vision requirements and can be adapted for durable setting of interocular distance.

This invention is for target remapping, telecentricity compensation, and a new PID motion control algorithm to align and control to a very high tolerance multiple functions to two lenses simultaneously in a stereoscopic 3D camera system. To control two lenses in a 3D camera rig such that they match as closely as possible in “actual” positions, a new error variable is calculated, based on the difference between the “actual” positions of both lenses. This is added to the PID formula, as a new statement, with a new coefficient, which we call the PID3D algorithm.

A pair of personalized eyeglasses comprises two lenses; a lens frame having a lens retaining portion for retaining the two lenses and two supporting rods extending from two sides of the lens retaining portion; and at least one texture area; texts on the texture area being on the lens frame or the lenses, or concaved into a surface of the lens frame or the lenses; or protruded from a surface of the lens frame or the lenses. The texts are at least one of names of users, address of users, ID numbers of users, phone numbers of users, birthdays of users, and data about the user's personal profiles; or the texts are about greeting, alerting, congratulations, anniversaries; or the data shown on the texture area is a section of article.

A digital still camera module includes a barrel (12) two lenses (10, 18), an aperture apparatus (16) having a transparent part, a filter (14) set on the transparent part of the aperture, and an image sensor (19). The lenses, the filter, the aperture apparatus and the image sensor are set in the barrel, with the image sensor being set at a bottom of the barrel, and the filter and the aperture apparatus being set below one of the lenses. Both lenses are upwardly convex. The encapsulation of the image sensor is by way of a CSP (Chip Scale Package), which includes a transparent glass cover (196). Pins extend down from a bottom of the image sensor, which enables a size of a circuit board (194) of the image sensor to be reduced. Thus the digital still camera module is relatively small and inexpensive, and has excellent optical capability.

The present invention provides glasses, which comprises a glasses frame, two lenses, two first magnets, two glasses temples and two engaging members, wherein the glasses frame is provided with two lens support parts and two magnet holders, the lenses are respectively arranged on the lens support parts, the first magnets are respectively arranged on the magnet holders, the glasses temples are respectively connected with both sides of the glasses frame, each engaging member is arranged on the glasses frame in a pivot manner and is provided with a second magnet, and both engaging members can rotate relative to the glasses frame so as to fix both lenses through mutual attraction between the first magnet and the second magnet.