Abstract: In an apparatus for mounting two or more optical elements that are each held in an individual mount or in a support structure, said optical elements are mounted in a common mount. The relative positioning of the optical elements (10, 11) in the common mount (18) can be set.

Abstract: A system and method for diagnosing the onset of keratoconus in a cornea requires subjecting the cornea of an eye to a pressure that changes its shape. A topography of the cornea's anterior surface (possibly, the posterior surface also) is mapped. The mapped topography is then fitted on a mathematical model of the cornea. Measurements corresponding to biomechanical parameters in the cornea are then taken from the model. Next, a computer is used to evaluate the biomechanical parameters to diagnose whether the cornea is keratoconic.

Abstract: An optical element module includes an optical element, and a plurality of actuator elements. In the module, the plurality of actuator elements are arranged such that a direction of width of the oblong strip shape of the plurality of actuator elements is a direction of the optical axis and such that a direction of thickness of the plurality of actuator elements is perpendicular to the optical axis , another end part in a direction of length of the plurality of actuator elements is fixed such that one end part in the direction of length of the plurality of actuator elements is displaced by the bending to move the optical element, and at least one actuator element A of the plurality of actuator elements is disposed such that a direction in which the one end part of the actuator element A is displaced by the bending (X-direction) is orthogonal to a direction in which the one end part of another actuator element B is displaced by the bending (Y-direction).

Abstract: The invention relates to an optical system with well corrected aberrations, which is adapted to take images from a full panoramic scene on a cylindrical, conical or other three-dimensional image surface or project such a three-dimensional display surface onto a full field of view in the distance. In an optical system adapted to form images from a 360° panoramic scene on a cylindrical or conical image surface 3, there is an annular refractive optical element 2 provided with the center axis 1 of rotation of the image surface 3 as the axis of rotational symmetry. There is further at least one reflective surface 4 provided with the center axis 1 of the rotation as the axis of rotational symmetry.

Abstract: The invention relates to an ophthalmological display comprising an optical imager (10) for shaping light beams emitted by a miniature screen (20) of a light beam generator system and for directing the beams towards the eye (O) of the wearer to enable an image (I) to be viewed, said imager presenting an outlet optical axis (A). According to the invention, the display includes a device for adjusting to the user's pupil spacing, the device including means for adjusting the position of said image (I1, I2) in a plane substantially perpendicular to said optical axis (A).

Abstract: Electrically controllable device having variable optical/energy properties in transmission or in reflection, comprising at least one carrier substrate provided with a stack of electrochromically functional layers, including at least two electrochromic active layers, separated by an electrolyte, the said stack being placed between two current leads, namely the lower current lead and the upper current lead respectively (“lower” corresponding to the current lead closest to the carrier substrate, as opposed to the “upper” current lead that is furthest from the said substrate), characterized in that the stack of functional layers is joined to at least one polymer film, the percentage shrinkage of which is between 0.6 and 2.0% and preferably between 0.8 and 1.5%.

Abstract: The enhanced visual field prism optical apparatus includes a pair of eye glasses frames having the users prescription provided therein, if needed, and an enhanced field prism rotatably supported in front of at least one of the lenses of the frames. For binocular vision, a prism is rotatably supported in front of both lenses of the frames.

Abstract: The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromic displays; (iii) apparatus and methods for sealing electrochromic displays from the outside environment and preventing ingress of contaminants into such a display; and (iv) methods for adjusting the driving of electro-optic displays to allow for environmental and operating parameters.

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 system and method of forming surfaces on eyeglass lenses is described. In some examples, the surface is a spherical, cylindrical or spherocylindrical surface at a center of the lens and an aspherical surface at a periphery of the lens. In some examples, forming the surface on the lens reduces the thickness of the lens at the periphery of the lens.

Abstract: A wavefront aberration compensating apparatus includes: a deformable mirror which compensates a wavefront aberration of a light flux entered, the deformable mirror including a plurality of electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror, and including an object subjected to aberration compensation; a wavefront sensor which receives the light flux traveled through the object and the deformable mirror, and which measures the wavefront aberration of the light flux; and a controller configured to calculate the voltage value applied to each of the electrodes, on the basis of differences, from a signal outputted from the wavefront sensor, between application points on the thin-film mirror and target points both corresponding to the electrodes, respectively, and to repeat compensation of the configuration of the thin-film mirror of the deformable mirror on the basis of

Abstract: Various embodiments described herein comprise mixers comprising a light pipe having input and output ends and a central region therebetween. An optical path extends in a longitudinal direction from the input end through the central region to the output end. The central region of the light pipe comprises one or more rippled reflective sidewalls having a plurality of elongate ridges and valleys and sloping surfaces therebetween. Light from the input end propagating along the optical path reflects from the sloping surfaces and is redirected at a different azimuthal direction toward the output end thereby mixing the light at the output end. Illuminance and/or color mixing can therefore be provided.

Abstract: An electro-optic element includes an electro-optic crystal having a birefringent property, and in which a refractive index distribution is generated in accordance with an intensity of an electric field caused inside, a pair of intensity modulating electrodes for applying a voltage for varying the birefringent property of the electro-optic crystal, a pair of scanning electrodes for applying a voltage for varying the refractive index distribution of the electro-optic crystal, and a polarization selection member provided at least on a side of a laser beam emission end face out of a laser beam entrance end face and the laser beam emission end face of the electro-optic crystal, and for selectively transmitting a part with a specific vibration direction out of a light beam emitted from the electro-optic crystal.

Abstract: An instrument for measuring a refractive power including an astigmatic axis with retinoscopy is provided, which includes a projector, a light receiving device, a detector, and a notification unit. The projector projects light into a pupil of an examined eye. The light receiving device receives light reflected from the examined eye. The detector detects a tilt angle of the light receiving device with respect to a measurement reference. The notification unit conveys information related to a result of detection performed by the detector.

Abstract: The invention relates to an electro-optical light control element and to electro-optical displays and display systems, e.g. television screens and computer monitors, which contain elements of this type. The inventive light control elements contain a mesogenic control medium (2) that exists in an optically isotropic phase when the light control elements are in operation. In addition to having a good contrast, a low dependency on viewing angle and very short switching times, the light control elements are particularly characterized by having relatively low drive voltages. The inventive electro-optical light control elements contain a solid dielectric layer (5) between the electrode structure (3, 4) and the mesogenic control layer. The invention also relates to the mesogenic control media, which are used in the electro-optical light control elements and which can exist in a blue phase.

Abstract: Methods and systems for providing brightness control in an interferometric modulator (IMOD) display are provided. In one embodiment, an interferometric modulator display pixel is provided that includes a microelectromechanical systems (MEMS) interferometric modulator having an associated first color spectrum, and a color absorber located substantially in front of the interferometric modulator display pixel, in which the color absorber has an associated second color spectrum. The microelectromechanical systems (MEMS) interferometric modulator is operable to shift the first color spectrum relative to the second color spectrum to control a visual brightness of the interferometric modulator display pixel independent of a color of the interferometric modulator display pixel.

Abstract: A method of producing a progressive spectacle glass by defining an ordering value for the average use value in the far reference point of the progressive spectacle glass, calculating the progressive spectacle glass while taking into account a calculation value of the average use value in the far reference point, the calculation value having a negative desired refraction deviation between 0.03 dpt and 0.2 dpt with respect to the ordering value in the far reference point, and producing the calculated progressive spectacle glass.

Abstract: A method for making a camera module includes the steps of: (a) providing a mold with a mold cavity; (b) mounting at least a sensing element and a lens within the mold cavity in such a manner that the sensing element and the lens are spaced apart from each other; and (c) forming a camera barrel by injecting a molding material into the mold cavity and by molding the molding material over the sensing element and the lens.

Abstract: A lens actuator includes a lens barrel for accommodating the lens, a coil wrapped around the lens barrel, a plurality of magnets, a bracket, and a resilient plate. The bracket is configured for mounting the magnets thereon and accommodating the lens barrel therein. The resilient plate is connected between the bracket and the lens barrel to hold the lens barrel on the bracket. The bracket includes two ring shaped members parallel to each other, a plurality of supporting rods, and a plurality of magnet mounting holes. The supporting rods are interconnected between the two ring-shaped members. Each two neighboring supporting rods have one of the magnets mounted therebetween.

Abstract: A lens module includes a lens barrel, a lens holder, a base, a plurality of elastic guiding members secured on the base and a plurality of electromagnetic devices arranged on the base. The lens barrel has a plurality of optical components received therein, and outer screw threads formed on an outer wall thereof. The lens holder has inner screw threads formed on an inner wall thereof to engage with the outer screw threads of the lens barrel. A plurality of supporting bars and magnetic elements are secured on an outer wall of the lens barrel. The guiding members each is formed on the base and configured for inserting of the respective supporting bar therein to guide a movement of the lens holder. The electromagnetic devices each locates at opposite sides of the respective magnetic element of the lens holder to provide a force to drive the lens holder.