Abstract: According to an embodiment of the present invention, there is provided an aspherical mirror for focusing a laser beam in a linear pattern, the aspherical mirror including: a convex surface diffusely reflecting an irradiated laser beam; and a concave surface reflecting the laser beam such that the laser beam is focused at one point, wherein the laser beam reflected from the convex surface forms a long line beam as an angle of reflection with respect to a curvature of the convex surface changes, and the laser beam reflected from the concave surface is focused at one point on the line beam as an angle of reflection with respect to a curvature of the concave surface changes.

Abstract: A silicone elastomer-hydrogel hybrid contact lens includes a silicone elastomer layer and a hydrogel layer adhered to the silicone elastomer layer by a delamination-resistant bond that is formed by an elastomer-swellable monomer that is included in the polymerizable composition used to form the hydrogel layer.

Abstract: A silicone elastomer-silicone hydrogel hybrid contact lens comprises a silicone elastomer layer adhered to silicone hydrogel layer by a delamination-resistant bond. The silicone hydrogel layer has a percent swell of about ?5% up to about 20%. The silicone elastomer layer may have one or more objects embedded within it or adhered to its surface. Such objects may include variable-focus lenses and/or electronic components.

Abstract: A multimode fundus camera enables three-dimensional and/or spectral/polarization imaging of the interior of the eye to assist in improved diagnosis. In one aspect, the multimode fundus camera includes a first imaging subsystem, a filter module, and a second imaging subsystem. The first imaging subsystem is positionable in front of an eye to form an optical image of an interior of the eye. The filter module is positioned at a pupil plane of the first imaging subsystem or at a conjugate thereof. The second imaging subsystem include a microimaging array and a sensor array. The microimaging array is positioned at the image plane or a conjugate thereof, and the sensor array is positioned at the pupil plane or a conjugate thereof.

Abstract: Provided is a zoom lens, including, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a rear unit including a plurality of lens units and having a positive refractive power as a whole, in which an interval between adjacent lens units is changed during zooming. The rear unit includes a focus unit having a positive refractive power, which is configured to move during focusing. An optical system arranged on the image side of the focus unit has a negative refractive power at a telephoto end. A focal length (ft) of the zoom lens at the telephoto end and a combined focal length (fpt) of an optical system arranged on the object side of the focus unit are each appropriately set.

Abstract: The present invention relates to a transparent optical article (e.g. an ophthalmic lens) comprising a thermoplastic substrate and a dye at least partially inhibiting light having a wavelength ranging from 400 to 460 nm and an optical brightener for at least partially balancing the color imparted to the transparent optical article by the dye, wherein said optical brightener emits light by fluorescence at a wavelength ranging from 400 to 460 nm and is incorporated into a layer fused or bonded to the thermoplastic substrate. Said optical brightener allows for perception of said optical article as less yellow, and even colorless, to a user or to an observer. In addition, the UV-absorbers that may be present in the thermoplastic substrate do not negatively interact with the optical brightener.

Abstract: A wide-angle optical system includes 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 having a positive refractive power, an aperture stop, a fourth lens having a positive refractive power, and a fifth lens. An object-side surface of the first lens is convex toward the object side, and the following conditional expression (1) is satisfied. 1.0<(R1L+R1R)/(R1L?R1R)?2.0??(1) where, R1L denotes a paraxial radius of curvature of the object-side surface of the first lens, and R1R denotes a paraxial radius of curvature of an image-side surface of the first lens.

Abstract: A wide-angle projection optical system includes, between an object side and an image side, a first optical system including a first lens group having an aperture stop and a second lens group disposed behind the aperture stop, and a second optical system including a Mangin mirror and a glass plate disposed between the second lens group and the Mangin mirror. The first and second lens groups have positive power. The first lens group provides optical characteristics to match with a light coming from the object side. The first and second lens groups are configured to form an aberrated real image. The Mangin mirror is disposed closer to the image side than others. The Mangin mirror includes a refracting surface and a reflecting surface for refracting the light two times and reflecting the light one time, thereby producing an enlarged real image on a screen. Therefore, the image quality is enhanced.

Abstract: A monolithic optical mount having a bore for accommodating an optical element, the bore including: a first ridge located at a first position on the inside circumference of the bore; a second ridge located at a second position on the inside circumference of the bore; and a flexure extending from along the inside circumference of the bore to a point beyond a threaded hole which passes through from the outside circumference of the bore to the inside circumference of the bore; wherein the flexure is actuated by turning a screw in the threaded hole thereby adjusting an amount of force pushing against a point on the flexure by a tip of the screw.

Abstract: A zoom lens is constituted essentially by six lens groups, in order from the object side to the image side: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a positive refractive power; a fifth lens group having a negative refractive power; and a sixth lens group having a positive refractive power. The distances between all pairs of adjacent lens groups change when changing magnification from the wide angle end to the telephoto end, and Conditional Formula (1) below is satisfied: ?5<f1/f2<?1.5??(1) wherein f1 is the focal length of the first lens group, and f2 is the focal length of the second lens group.

Abstract: A zoom lens system comprising, in order from an object side: a first lens group G1 having negative refractive power; and a second lens group G2 having positive refractive power, a distance between the first lens group and the second lens group varying upon zooming from a wide-angle end state to a telephoto end state, the first lens group G1 including, in order from the object side, a first lens component having negative refractive power, a second lens component having negative refractive power, a third lens component having positive refractive power, and a fourth lens component having positive refractive power, thereby providing a downsized zoom lens system having excellent optical performance, an optical apparatus equipped therewith and a method for manufacturing the zoom lens system.

Abstract: An imaging lens is constituted by, in order from the object side to the image side: a front group; an aperture stop; and a rear group having a positive refractive power. The front group is constituted by, in order from the object side to the image side: at least two negative lenses, and a cemented lens formed by cementing a negative lens and a positive lens having a smaller Abbe's number with respect to the d line than the negative lens, provided in this order from the object side to the image side, together. The rear group is constituted by, in order from the object side to the image side: at least one positive lens, and a cemented lens having a positive refractive power as a whole, formed by cementing a positive lens and a negative lens, provided in this order form the object side to the image side, together.

Abstract: An ophthalmoscope includes an illumination assembly having a light source disposed along an illumination axis and an imaging assembly configured for delivering an image to an imaging device. Each of the imaging and illumination assemblies are disposed in an instrument housing, the ophthalmoscope being configured for attachment to an electronic imaging device and in which the imaging assembly produces a field of view of about 40 degrees to permit more comprehensive eye examinations to be reliably conducted. In at least one version, a portable electronic device, such as a smart device, can be coupled to the instrument or configured to wirelessly receive images therefrom.

Abstract: A virtual or augmented reality headset is provided having a frame, a pair of virtual or augmented reality eyepieces, and an interpupillary distance adjustment mechanism. The frame includes opposing arm members and a bridge positioned intermediate the opposing arm members. The adjustment mechanism is coupled to the virtual or augmented reality eyepieces and operable to simultaneously move the eyepieces to adjust the interpupillary distance of the eyepieces.

Abstract: Ophthalmic eyewear is provided, comprising a frame and a spectacle lens having a filter and being disposed within the frame. The filter comprises a spectral characteristic that transmits red, green and blue light as mixed and emitted by an electronic display, while blocking substantially all broadband light other than the same bandwidths. Further ophthalmic eyewear is provided comprising a contact lens having a filter, wherein the filter comprises a spectral characteristic that transmits red, green and blue light as mixed and emitted by an electronic display, while blocking substantially all broadband light other than the same bandwidths.

Abstract: Wavefront measurements of eyes are typically taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.

Abstract: A new vision test, incorporating textual and non-textual elements in an image, is configured to demonstrate the effects of low cylinder astigmatism and other sources of blur on visual quality. The elements are designed to be noticeable, relevant, important and engaging. The new vision test may be utilized to supplement conventional vision testing.

Abstract: A lens module, including a first lens, a second lens, a third lens, a fourth lens comprising a concave object-side surface and a concave image-side surface, and a fifth lens including a negative refractive power and an inflection point formed on an image-side surface thereof. The first to fifth lenses are sequentially disposed from an object side to an image side.

Abstract: An optical system for endoscopes for which the corrections of the geometrical optical aberrations for multiple wavelengths meet the diffraction limit of the optical system. The optical system is categorized by lens groups. The glass selection for each of these lens groups uses the Hartmann Dispersion Formula. For the glasses in each lens group, limited ranges for the ?o value of the Hartmann Dispersion Formula are set. These ranges are set based on the contribution of the individual lens groups to the overall chromatic aberrations.

Abstract: A method and system for generating a three-dimensional model of a contact lens with a front and a back surface, in which the entire back surface consists of an array of independent data points shaped to conform to three-dimensional data provided by an ocular topographer. The sampling density is sufficiently high to characterize anomalies or injuries anywhere in the eye to optimize comfort and fit. The methods and systems also include modeling a scleral lens which rests either solely on the sclera, or straddles the limbus extending partially into the cornea is described. The resting surface conforms to the topology of the underlying ocular surface with topology guiding the design. Additional methods and systems model scleral lens optics without the use of trial lenses. The lens models can be used to machine or 3D print a lens that fits the patient. Such lenses benefit patients that suffer from dry eyes or whose eyes are not normally dry, but feel dry after wearing conventional contact lenses.