Abstract: An optical lens including, in order from an object side to an image side, a first lens having a negative refractive power, a second lens having a negative refractive power, a third lens, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power, wherein the second lens has a concave object side surface.

Abstract: The present invention provides a rearview mirror comprising a panel and a control circuit, a first substrate in the panel is provided with a planar transparent electrode layer, a second substrate is provided with a transparent hydrophobic material layer and multiple block electrodes, a side of the transparent hydrophobic material layer facing the first substrate is provided with multiple cells, lightproof electro-wetting ink is provided within each cell, the block electrodes are provided on a side of the transparent hydrophobic material layer away from the first substrate and can at least reflect part of light entering the rearview mirror from first substrate side, the control circuit is configured to control area of each cell covered by the electro-wetting ink in the cell by controlling a change in intensity of the electric field between the planar transparent electrode layer and the block electrodes.

Abstract: Random human eye generators are provided for use in evaluating aspects of treatment in refractive surgery or other therapeutic vision modalities. Exemplary random eye generators include an optical parameter such as a manifest refractive sphere parameter or a wavefront sphere parameter, and incorporate a Rayleigh distribution for such parameters.

Abstract: A light-modulating element comprises: first and second transparent substrates arranged in opposition to one another; a first transparent electrode arranged on the opposition surface of the first transparent substrate; a plurality of light transmissive regions arranged between the first transparent electrode and the second transparent substrate so as to be separated from one another; a plurality of second transparent electrodes arranged at respective positions on the second transparent substrate opposing the respective light transmissive regions, and that are arranged so as to be separated by a given distance from the respective light transmissive regions; a plurality of third transparent electrodes arranged individually between the second transparent electrodes at a predetermined distance therefrom on the second transparent substrate side; and an electrophoretic member arranged within a gap formed between the first transparent substrate and the second transparent substrate, and that includes light-shielding e

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens have negative refractive force, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: First and second lens drive sections of the lens unit are disposed at positions where a center point connecting line, which connects center positions of the lens drive sections on a plane perpendicular to a lens axis, does not pass through the lens axis; and include yokes, voice coils, and plate-like magnets. The width of the magnet in a lens circumferential direction is smaller than the width of the yoke; and the magnets are disposed to be biased to end portions of the yokes, which are positioned in a divided area in which a lens axis center is present, of divided areas divided into two by a center point connecting line, in the lens circumferential direction, respectively. The shortest distance between an operating point connecting line is shorter than the shortest distance between the center point connecting line and the lens axis.

Abstract: An auto-focus actuator unit including a lens carrier slidably received within a stationary housing frame for a reciprocating motion provided by an actuator is described. The housing frame being carried by a bottom plate provided with an opening, in correspondence with one or more lenses carried by the lens carrier, and with a dust barrier projecting towards the lens carrier and having such a height as to maintain a vertical overlap with the lens carrier over the whole travel of the latter.

Abstract: Postoperative lens position is predicted on the basis of known measured values, such as the corneal thickness, the depth of the anterior chamber, the eye length, and the distances of the capsular bag equator and/or of the lens haptic from the anterior surface of the lens. In addition, the calculation also takes into account the attitude of the intraocular lens, for which purpose additional parameters of the pseudophakic eye are used that have not previously been taken into consideration. The proposed method is suitable for a more exact prediction of the strength and nature of an intraocular lens to be implanted in a pseudophakic eye in the context of cataract surgery or of a refractive intervention. The method is based on the use of suitable calculation methods, e.g. geometric optical formulae, or of ray tracing.

Abstract: In described embodiments, a device and method for diagnosing brain and neurological issues is provided. The device measures the performance of Convergence, Divergence, and binocular tracking capabilities of a subject's eyes, which can be used to determine whether a subject has experienced a brain or other neurological event.

Abstract: An electrowetting element comprising a first fluid comprising a dye compound having the general formula:

Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens having positive refractive power, a second lens having positive refractive power and at least one aspheric surface, and a third lens having two aspheric surfaces, arranged with a space in between. The second lens group includes a fourth lens having two aspheric surfaces, a fifth lens having negative refractive power and two aspheric surfaces, and a sixth lens having two aspheric surfaces, arranged with a space in between. The third lens is arranged away from the fourth lens by a specific distance, and the fifth lens and the sixth lens have a specific composite focal length, so that specific conditional expressions are satisfied.

Abstract: In one general aspect, a computing device can include a base, and a lid coupled to the base, the lid housing a display device that includes a first electrochromic material, a second electrochromic material, and an organic light emitting diode (OLED) display. The OLED display can be located between the first electrochromic material and the second electrochromic material.

Abstract: An optical imaging lens assembly that may have six lens components. The first, third, fourth, and fifth lens components may have positive refractive power. The second and sixth lens components may have negative refractive power. The lens assembly may satisfy the relation |f/f5|+|f/f6|<1.4, wherein f is a focal length of the optical imaging lens assembly, f5 is a focal length of the fifth lens component, f6 is a focal length of the sixth lens component. The lens assembly may also satisfy the further relation 0.8<|f/f5|+|f/f6|. The first lens component may include a wafer lens having a lens element molded on one or both surfaces of a planar substrate or two wafer lenses having a lens element molded on one surface of each of two planar substrates. The wafer lens may include an electrically controlled electrochromic surface having variable light transmittance.

Abstract: A camera filter unit (1) includes an optical filter (2), a filter holding ring (3), and a filter frame (4) that are coaxially disposed in this order from the inside to the outside. The optical filter (2) has a tapered annular chamfered surface (13) on an outer peripheral edge of a rear filter surface (12). The filter holding ring (3) includes a front stopper (21) that is abuttable on the optical filter (2) from a front (X1) and a rear stopper (22) that extends along the annular chamfered surface (13). The filter frame (4) includes a second rear stopper (32) that prevents the optical filter (2) from moving to a rear (X2). The optical filter (2) is held by the filter holding ring (3) in a rotatable manner about an axis L. The optical filter (2) is fixed in a relatively unrotatable manner by the second rear stopper (32) abutting on the rear filter surface (12).

Abstract: A focus depth extension image forming optical system includes a focus depth extension element that extends a depth of focus of an image forming optical system. The focus depth extension element added to the image forming optical system has an aspheric surface shape rotationally symmetric about an optical axis of the image forming optical system, a sag amount Z of the aspheric surface shape changes at least to be negative, positive, and negative or positive, negative, and positive in accordance with an increase in a distance from the optical axis, in a range of 0<|t|<0.4 where |t| is a normalized radius of the aspheric surface shape, a maximum value of |dZ/dt| is 0.4 or more, and in one or more point of a range of 0.4?|t|<0.8, dZ/dt=0.

Abstract: A lens barrel includes an optical element, a barrel body configured to hold the optical element, the barrel body including a female thread, a presser including a male thread fastened to the female part and contacting the optical element, and an elastic member held by the presser, wherein in a fastening state in which the male thread is fastened to the female thread, both the presser and the elastic member contact the optical element, and the elastic member applies a force in a direction of fixing the optical element onto the barrel body.

Abstract: A head-up display system includes housing, a combiner to display information in an operating position and a cover to protect the combiner. The combiner moves between the operating position and a storage position. The cover moves between an open position and a closed position to protect the combiner in its storage position with the cover in its closed position. The system includes a drive to move the cover between its open and closed positions. The drive includes a main lever and a support lever that is pivoted with a moving end to the main lever and with a fixed end to the housing. The main lever is pivoted with a cover end to the cover and with a driver end to a rotational drive to drive an essential linear movement of the cover end of the main lever during the movement of the cover between its open and closed positions.

Abstract: Disclosed is an apparatus for auto focus, which includes a first frame having a magnet, a second frame having an auto focus (AF) coil for moving the first frame in an optical axis direction and a yoke giving an attractive force to the magnet, and a plurality of balls arranged in the optical axis direction and located between the first frame and the second frame so that the first frame and the second frame are maintained to be spaced apart from each other. An entire height of the plurality of balls is equal to or higher than a height of the magnet on the basis of the optical axis direction.

Abstract: An imaging lens includes, in order from the object side, a first lens group fixed during focusing, a positive second lens group moved toward the object side during focusing from a distant to a close object, and a third lens group fixed during focusing and including one positive lens. The second group includes, in order from the object side, a first cemented lens including a biconvex lens and a negative lens having a smaller absolute value of curvature radius of the object-side surface than of the image-side surface, and a second cemented lens having a positive refractive power and including a negative lens having a smaller absolute value of curvature radius of the image-side surface than of the object-side surface and a positive lens having a smaller absolute value of curvature radius of the object-side surface than of the image-side surface. The imaging lens satisfies specific condition expressions.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens may comprise an aperture stop and five lens elements positioned sequentially from an object side to an image side. By controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least two inequalities, the optical imaging lens may exhibit better optical characteristics and the total length of the optical imaging lens may be shortened.