Abstract: This application relates to a reflective display using color capsules and a method of manufacturing thereof. In one aspect, the method includes preparing a substrate in which first, second, and third receiving portions respectively having first, second, and third widths are formed by forming separating portions on a first substrate and forming the color capsules in which first, second, and third color capsules respectively having first, second, and third diameters are formed. The method may also include disposing the color capsule in which the first, second, and third color capsules are respectively inserted into the first, second, and third receiving portions, wherein the first, second, and third diameters respectively correspond to the first, second, and third widths. The color capsules are respectively inserted into receiving portions having the corresponding diameters, so that the reflective display which is convenient to manufacture and which has a multi-color pixel region may be provided.

Abstract: Provided is an optical system having a configuration capable of attaining a large light-gathering power while producing a maximum light-gathering power easily and inexpensively with a minimum material.

Abstract: A compound lens includes four coaxially aligned lenses: (i) first lens and, in order of increasing distance therefrom, and on a same side thereof, (ii) a second lens, an inter-lens substrate, a third lens, and a fourth lens. The first lens and the third lens are negative lenses. The second lens and the fourth lens are positive lenses.

Abstract: Disclosed are a device and method for measuring fluorescence signal in multi-illumination mode and use of the method. An excitation light is modulated on an illumination excitation light path, to generates excitation illumination patterns at different phases on a sample after passing through an objective lens; a high-speed switching device is arranged on a fluorescence collection light path to switch the position of a fluorescence image of the sample on a target plane of a photoelectric sensor, and a plurality of sub-images can be simultaneously obtained after one exposure through synchronous operation of multi-illumination excitation light paths and fluorescence imaging light paths, which correspond to fluorescence signals in a plurality of illumination modes.

Abstract: An imaging lens consisting of, in order from an object side to an image side: a first lens group that has a positive refractive power; a second lens group that has a positive refractive power; and a third lens group, wherein: during focusing, the second lens group moves along an optical axis, and the first lens group and the third lens group remain stationary with respect to an image plane, the second lens group includes a stop, an Lp1 lens, which is a positive lens, is disposed closest to the object side in the second lens group, an Lp2 lens, which is a positive lens, is disposed closest to the image side in the second lens group.

Abstract: A nose pad adjustment assembly is revealed. The nose pad adjustment assembly includes two nose pad blocks and a nose pad base which consists of a recess portion and two connection portions located at two sides of the recess portion correspondingly. The connection portion has an upper locking hole and a lower locking hole. The nose pad block includes an upper protrusion and a lower protrusion respectively movable transversely in the upper locking hole and the lower locking hole correspondingly. The upper and the lower protrusions are respectively provided with a plurality of upper and lower locking grooves which are able to be engaged and connected with the upper and the lower locking holes correspondingly. Thereby the nose pad blocks can be adjusted for close fit to user's nose bridge. Therefore, glasses are positioned without sliding freely and users feel more comfortable while wearing the glasses.

Abstract: The optical system includes a plurality of lens groups in which an interval between adjacent lens groups changes when focusing, and an aperture stop, and when intervals between an exit pupil of an on-axis ray by the aperture stop and an image plane in an infinite-distance object focusing state, a first short-distance object focusing state in which an imaging magnification is ?1, and a second short-distance object focusing state in which an imaging magnification is ?2 are Pinf, P1, and P2, respectively, the optical system satisfies predetermined conditions. An imaging apparatus includes the optical system and an image sensor.

Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is a meniscus lens with negative refractive power. The second lens is with positive refractive power and includes a convex surface facing an image side. The third lens is a meniscus lens with positive refractive power. The fourth lens is with positive refractive power. The fifth lens is with refractive power and includes a convex surface facing an object side. The first lens, the second lens, the third lens, the fourth lens, and the fifth lens are arranged in order from an object side to the image side along an optical axis.

Abstract: An optical system intended to be worn in front of an eye of a wearer including an optical lens having at least a control point and an optical device that has a plurality of optical elements, the optical device being attached on a surface of the optical lens or encapsulated into the optical lens, wherein each optical element has simultaneously two different optical functions, and the optical device and the optical lens are configured so that the absolute value of the difference between a measured optical power at the control point of the optical system and the optical power corresponding to the prescription for said eye of the person is smaller than or equal to 0.12 diopter.

Abstract: An optical device includes an overcoat layer on a surface-relief grating. The overcoat layer is formed by a process including: depositing a layer of a first resin material that is curable by heat or electromagnetic radiation on a surface-relief grating that includes a plurality of grating ridges and a plurality of grating grooves to at least partially fill the plurality of grating grooves, curing the layer of the first resin material, depositing a layer of a second resin material that is curable by heat or electromagnetic radiation and has a higher flowability than the first resin material on the layer of the first resin material, annealing the layer of the second resin material to allow the second resin material to flow and form a planar top surface, and curing the layer of the second resin material.

Abstract: An observation optical system includes a display element and an eyepiece lens arranged on an eyepoint side of the display element. The eyepiece lens consists of a first lens having positive refractive power, a second lens having negative refractive power, and a rear side lens group including two or more lenses consecutively in order from a side closest to the display element to the eyepoint side. In a case where a half value of a longest diameter of a display region in the display element is denoted by H, and a focal length of the eyepiece lens is denoted by f, the observation optical system satisfies a conditional expression represented by 0.3<H/f<0.5.

Abstract: A wide-field imaging lens and an optical image capturing device for an electronic mobile device are provided. In the wide-field imaging lens, an aperture stop, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element may be sequentially located and optically coupled. A surface of each of the first lens element to the fifth lens element may be an aspheric surface.

Abstract: A polarizing plate and an optical display apparatus including the same. The polarizing plate includes: a polarizer; a first retardation layer; and a second retardation layer, the first retardation layer and the second retardation layer being sequentially laminated on a lower surface of the polarizer, wherein the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 220 nm to about 270 nm at a wavelength of about 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation of about 80 nm to about 130 nm at a wavelength of about 550 nm, and a ratio (Rth/d) of out-of-plane retardation (Rth, unit:nm) of the second retardation layer at a wavelength of about 550 nm to thickness (d, unit:?m) of the second retardation layer ranges from about ?33 nm/?m to about ?15 nm/?m.

Abstract: The present disclosure relates to an apparatus for forming a line beam. The apparatus includes a laser source, a telescope unit, a beam-transforming unit, a Fourier unit, a long-axis optical unit, and a short-axis optical unit. The laser source is configured to generate input light. The telescope unit is configured to magnify the input light in an X-axis direction perpendicular to an optical axis, which is a progression direction of the input light. The beam-transforming unit is configured to divide light incident from the telescope unit into a plurality of sub-columns. The Fourier unit is configured to uniformly mix the plurality of sub-columns. The long-axis optical unit is configured to uniformly disperse light mixed by the Fourier unit in the X-axis direction.

Abstract: The present disclosure relates to a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

Abstract: An electronic device includes at least two image capturing units which face the same side. The at least two image capturing units include a first image capturing unit and a second image capturing unit. The first image capturing unit includes an optical image system and a first image sensor. The optical image system includes a first lens element and an image surface. The first image sensor is disposed on the image surface of the optical image system thereof and has a first resolution of at least 60 megapixels. The second image capturing unit includes an optical image system and a second image sensor. The optical image system includes a first lens element and an image surface. The second image sensor is disposed on the image surface of the optical image system thereof and has a second resolution of at least 40 megapixels.

Abstract: A retina viewing system and method of using the same includes an ophthalmic microscope, a disposable lens attachment, and an electronic control unit (ECU). The microscope has an optical head and a set of internal focusing lenses, the latter providing the microscope with a variable working distance or focal length. The disposable lens attachment includes a resilient body with a proximal end connected to the optical head and a distal end connected to a high-power/high-diopter distal lens. The ECU executes instructions for viewing a retina or other intraocular anatomy of a patient eye. Execution of the instructions causes the ECU to automatically adjust the variable working distance or focal length of the microscope when viewing an image of the retina through the distal lens.

Abstract: The application provides a light expander/contractor device and method of using same, the light expander/contractor device comprising: a faceted quartz structure comprising a lateral surface communicating with a light processing surface at one end and communicating with a planar surface at an opposed end; the light processing surface comprising an initial surface extending from the lateral surface substantially parallel to the planar surface and having a distal end spaced from the lateral surface, the light processing surface further comprising multiple levels of facets comprising quartz-air interfaces: each level of facets comprising (a) a proximal facet surface relative to the lateral surface, the proximal facet surface extending away from the initial surface and toward the lateral surface at a 45° angle relative to the initial surface to communicate with (b) a facet planar surface spaced apart from and parallel to the initial surface to communicate with (c) a distal facet surface adjacent and substantially

Abstract: The present disclosure provides a microscope including a first optical member configured to guide light from a light source in a first optical axis direction; a first reflecting member configured to guide the light guided in the first optical axis direction in a second optical axis direction substantially orthogonal to the first optical axis direction; a second optical member configured to relay the light guided in the second optical axis direction; a second reflecting member configured to guide the light relayed by the second optical member in a third optical axis direction substantially orthogonal to the second optical axis direction; and a function expansion objective lens disposed on the third optical axis direction and configured to radiate the light guided in the third optical axis direction onto a predetermined portion of the observation target.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a first driving assembly, and a circuit assembly. The movable portion is used for connecting to an optical element. The movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the movable portion to move relative to the fixed portion. The circuit assembly is used for connecting to an external circuit, and is affixed on the fixed portion.