Abstract: A lens is provided that has an improved optical configuration in order to provide enhanced off-axis optical performance by tending to reduce, eliminate, or minimize first order optical distortion. Embodiments may be used in non-corrective or corrective unitary or dual lens eyewear, for example in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of an eye of a typical wearer. The lens may comprise a lens body. The lens body may comprise a surface having a spheric, toric, cylindrical or freeform geometry and another surface having a freeform geometry. A lens thickness is defined between the surfaces. A prismatic power of the lens is improved, particularly for off-axis viewing angles.

Abstract: A laser dicing device includes: a Gaussian laser beam emitter configured to emit a Gaussian laser beam having a Gaussian energy distribution; a laser beam modulator configured to modulate a shape of the emitted Gaussian laser beam by reducing intensity in a region surrounding a first line parallel with a laser dicing direction of the emitted Gaussian beam, the first line crossing a center of the Gaussian laser beam in a plan view; a focusing lens configured to focus a modulated Gaussian laser beam modulated by the laser beam modulator; and a substrate support configured that a substrate to be diced is seated on the support, wherein the focusing lens is configured to collect the modulated Gaussian laser beam inside the substrate seated on the substrate support.

Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.

Abstract: An optical interface assembly, comprising a lens barrel, a lens disposed in the lens barrel, an optical receptacle, a stub disposed in the optical receptacle, and a diaphragm disposed between the lens and the stub. A diameter of a light passing hole of the diaphragm is smaller than a diameter of a light passing surface of the lens. A first end surface of the stub facing the lens is disposed at an inclined angle relative to an axis of the stub. When a light beam is coupled into the stub by the lens, a portion of a return light reflected from the first end surface is reflected to an outside of the light passing hole of the diaphragm.

Abstract: Apparatuses, systems, and methods for solid immersion meniscus lenses (SIMlenses). An optical system may include a sample holder with a first side which supports a sample, and a second side opposite the first side. The second side of the sample holder may be in contact with an immersion fluid. Light passing between the sample and an objective lens may pass through the sample holder, immersion fluid, and a SIMlens positioned between the immersion fluid and objective. The SIMlens may have a first curved surface and a second curved surface, each of which may be shaped to match a wavefront of the light as it passes through the SIMlens. The immersion fluid, SIMlens, and environment containing the objective may all have different refractive indices.

Abstract: An optical element for a lidar system. The optical element includes an expanding optical system configured to expand received light beams, and a projection lens configured to receive and parallelize each of the expanded light beams from the expanding optical system. The expanding optical system and/or the projection lens is formed as a holographic optical element.

Abstract: An ultra-thin backlight lens includes: a lens body, which including a light exit top face and a light reflection bottom face that are horizontally arranged, and a light exit side face vertically arranged, the light exit side face being connected to the light exit top face and the light reflection bottom face, a light source mounting hole being arranged at a center, of the light reflection bottom face, an inner wall of the light source mounting hole being a light incident face, which being connected to the light reflection bottom face; wherein a light exit convex point and a light incident convex point are arranged at a center of the light incident face, and the light exit top face being provided with a plurality of light transmission holes. The light transmission holes allow a part of the light to emit to adjust the luminance of the central region.

Abstract: A light apparatus for providing a light beam contains a driver circuit, a LED plate, a central lens, a surrounding lens. The LED plate has a luminous area to emit light. The central lens has a bottom surface and a top surface. The bottom surface of the central lens faces to the luminous area. The top surface has multiple lens. The surrounding lens has a surrounding surface connecting to and surrounding the top surface of the central lens. The surrounding lens has a lateral part gradually climbing upwardly away from the luminous area. There are multiple refraction lens disposed on the lateral part.

Abstract: A device for modifying light distribution includes a transparent body including a first surface, a second surface on an opposite side of the transparent body, and a third surface joining the first surface. The second surface defines a cavity opening away from the first surface. The second surface reflects, towards the third surface, at least a part of light received via the first surface. The third surface reflects, towards the second surface, the light reflected from the second surface. The second surface acts as a light egress surface for the light reflected from the third surface. The third surface includes a groove so that a part of the light reflected from the second surface propagates across the groove prior to being reflected from the third surface. The light distribution can be tuned by adjusting the shape, the size, and/or the location of the groove.

Abstract: An illumination apparatus has a light source having a planar emission surface and a centroid, wherein the surface has a maximum distance L between opposite edges. A lens has an incident surface and an optical axis. In cross section along the optical axis, the incident surface, at a first incident point, is concave or flat to light emitted at a normal from the emissive surface. At a second incident point, the surface an instantaneous angle of curvature, relative to the emissive surface, with an absolute value of no more than 25 degrees to light emitted at an oblique angle greater than 75 degrees from the emissive surface normal. Considered in parallel to the optical axis, the second incident point is within a less than 0.2 L from the first plane. In an orthogonal direction to the optical axis, the second incident point lies within less than 2 L from the centroid.

Abstract: A light fixture has a housing having a depression in which at least one light-emitting diode is received. The light-emitting diode is mounted on a mounting surface and in operation of the light fixture emits light with an initial emission angle of more than 80°. A lens is arranged downstream of the light-emitting diode, having a central focus area and an outer area radially surrounding the focus area. The central focus area is configured and/or arranged in such a way that a part of the light propagating through the focus area is focused in such a way that a final emission angle of the light propagated through the focus area is at least 50° and at most 80°. The outer area of the lens is spaced at least 2 mm from the mounting surface in a vertical direction.

Abstract: The invention relates to an optical light beam projection device, notably for a motor vehicle, characterized in that it comprises, upstream in the direction of propagation of the light rays, a matrix of primary light sources capable of emitting light rays, and downstream, a primary optical system provided with a plurality of convergent optics configured to form virtual images of the primary light sources, the virtual images being formed upstream of the matrix of primary sources, such that the dimensions of the virtual images are greater than the dimensions of the primary light sources. Another subject of the invention is an optical module comprising the device and a motor vehicle headlight.

Abstract: A headlight module includes a light source, a condensing optical element, and a projecting optical element. The light source emits light as projection light. The condensing optical element collects light emitted from the light source and forms an intermediate image with the collected light. A plurality of light sources is included. The projecting optical element magnifies and projects the plurality of intermediate images formed by light emitted from the plurality of light sources. The condensing optical element has a function of refracting passing light.

Abstract: An imaging lens element includes an optical effective section, an outer diameter surface, at least two cut traces and at least two clearance surfaces. The optical effective section has an optical axis. The outer diameter surface surrounds the optical effective section. Each of the cut traces is shrunk from an outer diameter reference plane of the outer diameter surface toward a center of the imaging lens element. The clearance surfaces are connected between each of the cut traces and the outer diameter surface, respectively. At least one of the cut traces includes a first surface, and a curvature center of the first surface is closer to the center of the imaging lens element than the first surface to the center of the imaging lens element thereto.

Abstract: The present invention provides a manufacturing method of a syringe barrel capable of securing smoothness of a nozzle tip and productivity. A manufacturing method of a syringe barrel that is injection-molded from a nozzle tip comprises cutting a remaining gate at a nozzle part using an ultrasonic cutting apparatus having a mechanism for suppressing abnormal vibrations.

Abstract: A plastic lens element includes an effective optical portion and a peripheral portion in order from an optical axis to an edge thereof. The peripheral portion includes a plurality of rib structures, wherein each of the rib structures has a strip shape in a radial direction of the optical axis, and the rib structures are arranged around the effective optical portion and indirectly connected to the effective optical portion.

Abstract: A lighting device, which may be used e.g. to produce motor vehicle lamps, may include a light radiation source, e.g. a LED source, having a light-permeable body arranged facing source for propagating light radiation along a longitudinal axis. The light-permeable body includes a collimator exposed to light radiation source and adapted to collect light radiation and to inject it into light-permeable body, a tapered portion coupled to collimator for receiving light radiation and directing it towards an output end, a distal portion acting as an emission filament, coupled to the output end of tapered portion, with an output mirror having a shank portion extending in said distal portion and a head portion, the output mirror reflecting light radiation radially from longitudinal axis and proximally towards said light radiation source.

Abstract: Disclosed is a light diffusing lens having a pointing angle distribution focused toward a lateral direction. The disclosed light diffusing lens includes a light entrance portion having a shape which is concave inward from the lower portion of the light diffusing lens, a reflection portion having a shape which is concave inward from the upper portion of the light diffusing lens, and a light exit portion defined by the outer surface of the light diffusing lens. The light entrance portion has a first convex surface which is convex in an optical axial direction defined by a straight line passing through the center of the light diffusing lens as it goes toward the inside of the light diffusing lens.

Abstract: An light-spreading lens comprises a bottom surface, a light-in surface, a side surface, a light-out surface and a micro structure portion. The light-in surface is defined in a center of the bottom surface and is recessed away from the bottom surface to form a receiving chamber. The side surface is around the bottom surface and is perpendicular to the bottom surface. The light-out surface extends from the side surface along a direction away from the bottom surface. The micro structure portion is formed on the light-out surface and is around a periphery of the light-out surface of near the side surface.

Abstract: An optical surface for softening a light/dark border of a lighting device for vehicles, having a grid of lens elements distributed over a base surface, by means of which a light bundle passing through the optical surface can be diffused in relation to a main direction, wherein the lens elements are each designed as micro-lens elements, which, on one hand, exhibit a central main emission surface, which follows a contour of the base surface, by means of which the light beams of the light bundle are deflected in a main direction corresponding to the contour of the base surface, and on the other hand, exhibit subsidiary emission surfaces, running at an angle to the central main emission surface, by means of which light beams of the light bundle are diffused in a diffusion direction in relation to the main direction.

Abstract: A lens for a backlight of a display device, includes a lower surface, a groove portion defined recessed from the lower surface and comprising a curved surface; and an upper surface comprising an outer edge and a center, in a plan view, of which a distance from the lower surface decreases in a direction from the outer edge to the center.

Abstract: A lens has a first, second and third optical region. The first, second and third optical region are arranged in sequential order. Space angle defined between each first, second and third optical region, and an optical axis of the lens are different from each other. An LED light module, which has an LED chip and the lens is also provided. The light emitted from the LED chip passes the reflecting surface and refractive surface and radiates from a top of the lens.

Abstract: A vehicular lamp includes a plurality of light-emitting elements arranged such that light-emitting surfaces of the light-emitting elements face toward a front of the vehicular lamp; and a projection lens having a plurality of projection regions that face the respective light-emitting elements, and project light source images of the respective light-emitting elements facing the projection regions, to the front of the vehicular lamp. A lamp rear surface of the projection lens has protruding portions provided in the respective projection regions, the protruding portions protruding toward the respective light-emitting elements facing the protruding portions. A lamp front surface of the projection lens is flatter than the lamp rear surface.

Abstract: Lens having a cavity defining a light entrance section of the lens, and a light exit surface opposite the light entrance section, and a beam splitting element formed on the light entrance section of the lens.

Abstract: A vehicle lamp fitting comprises a semiconductor light source and a lens adapted to radiate light from the semiconductor light source with both a main light distribution pattern and an overhead sign light distribution pattern. The lens includes a first surface of incidence adapted to form the main light distribution pattern, and a second surface of incidence adapted to form the overhead sign light distribution pattern. The second surface of incidence is located further to a side of the lens adjacent to the semiconductor light source than an imaginary first surface of incidence.

Abstract: A light head includes a heat sink, a circuit board in heat transfer communication with the heat sink, a light source mounted on the circuit board such that heat generated by the light source when energized is transferred to via the circuit board to the heat sink, a collimating base having a cavity for receiving the light source, and a collimating lens structure on the outer surface of the base projecting outward from the outer surface of the base for transmitting substantially collimated light from the base. A light bar including one or more such light heads is also described.

Abstract: An illumination system includes at least an LED module, and at least an illuminated area. The LED module includes an LED, and a lens mounted in light path of the LED. The lens includes a light source recess, a first light emitting surface, a critical reflecting surface, and a second light emitting surface intersecting with the first light emitting surface and being on same side with the first light emitting surface. The first light emitting surface can receive more light quantity than the second light emitting surface. Although the light emitted from the first light emitting surface may have greater attenuation than the light emitted from the second light emitting surface, light emitted from the first light emitting surface can make up the intensity losses of attenuation as the first light emitting surface receives more light quantity than the second light emitting surface. As a result, the illumination system 100 have uniform illumination pattern.

Abstract: There is provided a lens module, including: a first lens having an extended portion, a second lens in contact with the extended portion to be aligned with the first lens, and a third lens in contact with the extended portion to be aligned with the second lens. In the lens module, the plurality of lenses are easily alignable in terms of optical axes thereof.

Abstract: An LCD module includes a screen, a light diffusion plate, a lens and an LED. The lens covers the LED. The lens includes a main body having a bottom face and a top face opposite to the bottom face. The bottom face of the main body defines a cavity to receive the LED. The top face of the main body forms a plurality of concentric annuluses thereon. Each annulus has a first face perpendicular to the top face of the main body, and a second face inclined relative to the top face of the main body, to thereby diverge a part of light from the LED and into the lens. A central area of the top face of the main body is surrounded by an innermost annulus, and forms a rough face for diffusion another part of the light from the LED into the lens.

Abstract: A lens device and a method of manufacturing the same are provided, wherein the lens device includes a transparent substrate, a metal layer, a hydrophobic layer and an aspherical lens. The metal layer is formed on the transparent substrate, and the hydrophobic layer is formed on the metal layer. The metal layer has a first opening, such that an area of the transparent substrate corresponding to the first opening is not covered by the metal layer. The hydrophobic layer has a second opening connected to the first opening, and the second opening is larger than the first opening, such that a portion of the metal layer adjacent to a peripheral edge of the first opening is not covered by the hydrophobic layer. The aspherical lens is formed on the area of the transparent substrate and contacts the portion of the metal layer.

Abstract: The method for measuring profile of an aspheric surface projects an illumination light onto the aspheric surface and introduces a reflected light reflected by the aspheric surface to a sensor through an optical system. The method provides, to a wavefront of the illumination light, a curvature bringing an absolute value of an angle of the reflected light to a smaller value than a maximum value of absolute values of angles of optical system side peripheral rays, locates an exit pupil such that the absolute value of the reflected light angle is smaller than the maximum value, provides, to a sensor conjugate surface, a curvature and a position causing rays of the reflected light not to intersect on the sensor conjugate surface. The sensor conjugate surface, the wavefront of the illumination light and the aspheric surface have a same one of convex and concave surfaces toward a same direction.

Abstract: Disclosed are an image pickup lens which provides a sufficient back focus and can be subjected to a reflow process while offering a capability to be used with either a 1/10-inch-sized or a 1/12-inch-sized solid-state image pickup device, as well as an image pickup apparatus and a portable terminal employing such an image pickup lens. An image pickup lens for focusing an image of a subject on a photoelectric converting portion of a solid-state image pickup device, the image pickup lens comprising an aperture stop and a single lens arranged in this order from an object side, wherein the image pickup lens satisfies the following conditional formulae: 0.70 mm<f<1.60 mm??(1) 0.70<(r1+r2)/(r1?r2)<1.60??(2) where f: focal length of the image pickup lens (mm); r1: paraxial radius of curvature of an object-side surface of the single lens (mm); and r2: paraxial radius of curvature of an image-side surface of the single lens (mm).

Abstract: The present invention, in some embodiments, provides a low distortion singlet lens and optical imaging apparatus including the same.

Abstract: An optical lens for converting an incident beam with an irregular brightness into a uniform beam with a regular brightness includes an adjustable component configured to adjust a brightness distribution or magnitude distribution of a portion with a relatively high brightness in the incident beam. The optical lens includes a lens surface configured to refract the remaining portion in the incident beam except the portion with a relatively high brightness distribution to irradiate a target.

Abstract: Image capture lens modules and wafer level packaged image capture devices are presented. The image capture lens module includes a compound lens with a first lens element and a second lens element molded on both sides of a substrate, and a field stop disposed at an interface between the first lens element and the substrate or at an interface between the second lens element and the substrate, wherein the field stop is a coating layer with a polygonal transparent area.

Abstract: An LED lens includes a recess disposed in a quadrangular bottom surface of the LED lens and configured to have a light source disposed therein, wherein an internal surface of the recess, including lateral surfaces and top surfaces, is a light incident surface. The LED lens further includes a top surface forming a light exit surface, having a size greater than that of the bottom surface, and having a quadrangular shape; and lateral surfaces of the LED lens, disposed between the top and bottom surfaces of the LED lens, forming a reflective surface, and guiding light incident to the LED lens through the light incident surface to the light exit surface. The top surfaces of the light incident surface form an inverted quadrangular pyramid.

Abstract: A concave surface is formed on an object side of a plastic lens of a one-piece construction, and a convex surface is formed on an image-point side thereof. The concave and convex surfaces are aspherical. A diffractive optical surface that exerts a chromatic dispersion ability is formed on the convex surface, and conditional expressions (1) 0.45<L/R<0.95 and (2) ?0.065<L?(1?n)/R?<0.035n are met, where assuming that a position at which a chief ray and an optical axis intersect is regarded as an apparent stop, L denotes a distance to the apparent stop seen from the apex of the convex surface, L? denotes a distance to the apparent stop seen from the apex of the concave surface, R denotes a curvature radius of the convex surface, R? denotes a curvature radius of the concave surface, and n denotes a refractive index of a lens material.

Abstract: An inspection system including a lens. In one instance, the lens is a solid immersion lens. The inspection system includes a component or components for providing a self aligning solid immersion lens arrangement in order to allow at most a small distance between the solid immersion lens and a device under test and components or components for constraining a force exerted on the device under test. The inspection system may include a “purge” port, or a thermal isolation configuration or an anti-contamination component. The inspection system may include software and hardware to prevent crashing of the lens. The inspection system may also include a method for ensuring that various objective lenses can be replaced while maintaining the intended spacing between lenses.

Abstract: Provided is an optical system with an excellent anti-reflection effect and ghost suppression effect including an aspherical lens having at least one of an incident surface and an exiting surface of an optical glass formed of an aspherical surface, in which: the aspherical surface includes an anti-reflection structure formed thereon, the anti-reflection structure having an anti-reflection function and including multiple inorganic structural parts finer than a used wavelength; and the aspherical surface has a point that satisfies the following expression: |(1/Rm?1/Rs)/Rm|>5.0×10?5, where Rm denotes a radius of curvature in a meridional direction at an arbitrary point, and Rs denotes a radius of curvature in a sagittal direction at the arbitrary point.

Abstract: Measuring a shape of an optical surface (14) of a test object (12) includes: providing an interferometric measuring device (16) generating a measurement wave (18); arranging the measuring device (16) and the test object (12) consecutively at different measurement positions relative to each other, such that different regions (20) of the optical surface (14) are illuminated by the measurement wave (18); measuring positional coordinates of the measuring device (16) at the different measurement positions in relation to the test object (12); obtaining surface region measurements by interferometrically measuring the wavefront of the measurement wave (18) after interaction with the respective region (20) of the optical surface (14) using the measuring device (16) in each of the measurement positions; and determining the actual shape of the optical surface (14) by computationally combining the sub-surface measurements based on the measured positional coordinates of the measuring device (16) at each of the measurement

Abstract: Disclosed is a truncated ball lens, and method of making same, in which a ball lens, having a focal point internal to (i.e., inside of) the ball lens, is constructed by removing a surface of the ball lens so as to expose the focal point. The exposed side of the truncated ball lens faces the endface of a fiber directing light towards the lens. In a preferred embodiment, an optical axis of the truncated ball lens coincides with an optical axis of the fiber.

Abstract: A micro-lens module including a first lens, a second lens, and an aperture stop is provided. The first lens is disposed between an object side and an image side, wherein a first surface of the first lens facing the object side is an aspheric surface, and the curvature radius of the aspheric surface is R1. The second lens is disposed between the first lens and the image side, wherein a second surface of the second lens facing the image side is an aspheric surface, and the curvature radius of the aspheric surface is R2. The aperture stop is disposed between the first lens and the second lens, wherein the distance from the first surface to the aperture stop is d1, and the distance from the second surface to the aperture stop is d2. The micro-lens module satisfies 6>d2/d1>2.5 and ?2.5<R1/R2<1.5.

Abstract: The method for measuring profile of an aspheric surface projects an illumination light onto the aspheric surface and introduces a reflected light reflected by the aspheric surface to a sensor through an optical system. The method provides, to a wavefront of the illumination light, a curvature bringing an absolute value of an angle of the reflected light to a smaller value than a maximum value of absolute values of angles of optical system side peripheral rays, locates an exit pupil such that the absolute value of the reflected light angle is smaller than the maximum value, provides, to a sensor conjugate surface, a curvature and a position causing rays of the reflected light not to intersect on the sensor conjugate surface. The sensor conjugate surface, the wavefront of the illumination light and the aspheric surface have a same one of convex and concave surfaces toward a same direction.

Abstract: The method includes: measuring a first wavefront of a reference light on a sensor by using the sensor; calculating a second wavefront of the reference light on the sensor by using a parameter of an optical system; changing an optical system parameter in calculation such that a difference between rotationally symmetric components of the first and second wavefronts becomes smaller; calculating, by using the changed parameter, a magnification distribution of rays of the reference light between on the sensor and on a sensor conjugate surface; measuring a first ray angle distribution of the reference light by using the sensor, and measuring a second ray angle distribution of a measurement light by using the light-receiving sensor. The method calculates the profile of the measurement object aspheric surface by using the profile of the reference aspheric surface, the first and second ray angle distributions and the magnification distribution.

Abstract: Provided is a light emitting apparatus. The light emitting apparatus comprises a substrate; a light emitting device package on the substrate; and a lens supported by the substrate, the lens being disposed on the light emitting device package, wherein the lens comprises a lens body having a first recess at a central portion of a top surface thereof, a second recess at a central portion of a bottom surface thereof, and a lens support disposed on the bottom surface of the lens body to support the lens body such that the bottom surface of the lens body is spaced apart from the substrate.

Abstract: A multi-layered lens having a substrate with opposing first and second surfaces. The substrate is formed of a plurality of discreet polymer layers. A cavity is formed into the first surface and is defined by a non-planar cavity surface that acts as a lens surface. The cavity extends into and exposes each of the plurality of polymer layers. The compositions of the polymer layers can vary to provide optimized focal properties. Alignment marks in the form of cavities or protrusions can be formed at the first surface or the second surface, so that multiple lenses can be stacked together in an aligned manner to form a stacked lens assembly.

Abstract: An imaging lens (LN) of an imaging device (ID) is composed of an aperture stop (ST) and a lens unit (LU) having positive power. Even when the object side surface of the lens unit (LU) has a shape convexed to the side of the object, and a lens whose image side surface is concaved to the image side is used, excellent aberration performance with a short optical total length, a small sensor incidence angle and a small distortion are achieved at low cost.

Abstract: In order to attain an imaging lens whose resolution performance is totally excellent, the imaging lens is in a shape of rotation symmetry in an optical effective aperture, and an image height-MTF property of the imaging lens is designed such that a maximum MTF value of a peripheral region where the image height is greater than zero is greater than an MTF value of a center region where the image height is zero in at least one of a sagittal direction and a tangential direction. This makes it possible to totally maintain an excellent resolution performance of a product even in a case where the performance of the product becomes unstable due to a tolerance that occurs at the time of manufacturing the product.

Abstract: Illumination lenses having surfaces shaped according to given differential equations in order to distribute light in a highly controlled manner with minimum reflection losses are provided. These lenses also have surfaces angled and arranged in such a way that they can be molded with relatively simple molds.

Abstract: A junction type compound lens using glass and resin is used. By properly controlling the difference between refractive indices and the difference between Abbe numbers of the resin and glass, interface reflection that occurs when a ray with a large incidence angle is incident is restricted, and generation of a flare or a ghost image is restricted. Further, by properly controlling the difference in refractive index and the difference in Abbe number, various aberrations, such as spherical aberration, field curvature, and chromatic aberration, which may deteriorate optical performance, can be corrected. Thus, a small and high-performance imaging lens can be provided.