Abstract: There is provided an optical element for counterfeit prevention that has both high counterfeit preventing property and designability by a multi-optical element structure. The optical element has a second layer (3) having a relief structure on a front surface, a first layer (2) disposed on the second layer (3), and a third layer (6) in a thin film interposed between the second layer (3) and the first layer (2) and formed along a front surface of the relief structure. The second layer (3) has a refractive index lower than a refractive index of the first layer (2) and the third layer (6) has a refractive index higher than the refractive index of the first layer (2). The optical element has at least a first region (4) and a second region (5) in a plan view. In the first region (4), an electromagnetic wave that enters from a side of the first layer (2) in a specific angle range is configured to be totally reflected.

Abstract: A system for illuminating a microscopy specimen includes illumination sources each of which is configured to emit a light that travels along an illumination path to illuminate the microscopy specimen placed on an optical detection path of an optical microscope. The system also includes optical elements in the illumination path of each of the illumination sources. The optical elements are configured to at least in part transform the light from each of the illumination sources into a light sheet illuminating the microscopy specimen and to vary a position of a waist of the light sheet from each of the illumination sources that illuminates the microscopy specimen. The optical elements for each of the illumination sources are configured such that the waist of the light sheet from each of the illumination sources are spatially aligned and illuminate a substantially coincident portion of the microscopy specimen.

Abstract: A method for scanning along a substantially straight line (3D line) lying at an arbitrary direction in a 3D space with a given speed uses a 3D laser scanning microscope having a first pair of acousto-optic deflectors deflecting a laser beam in the x-z plane (x axis deflectors) and a second pair of acousto-optic deflectors deflecting the laser beam in the y-z plane (y axis deflectors) for focusing the laser beam in 3D. Further, a method for scanning a region of interest uses a 3D laser scanning microscope having acousto-optic deflectors for focusing a laser beam within a 3D space defined by an optical axis (Z) of the microscope and X, Y axes that are perpendicular to the optical axis and to each other.

Abstract: An imaging system including a light source; a first focusing lens positioned to focus a beam from the light source to a beam waist at a predetermined location along an optical path of the beam in the imaging system; a beam splitter positioned relative to the first focusing lens to receive the beam from the first focusing lens and to create first and second beams; a second focusing lens positioned to receive the first and second beams output by the beam splitter, to focus the received first and second beams to a spot sized dimensioned to fall within a sample to be image, and further positioned to receive first and second beams reflected from the sample; an image sensor positioned to receive the light beams reflected from the sample; and a roof prism positioned in the optical path between the second focusing lens and the image sensor.

Abstract: An observation apparatus including: a light-source that emits illumination light and excitation light upward from below a specimen; and an image-capturing optical system having an objective lens that focuses, below the specimen, transmitted light, which is the illumination light that is emitted from the light-source, that is reflected above the specimen, and that has passed through the specimen, and fluorescence that is generated in the specimen that has been irradiated with the excitation light emitted from the light-source, wherein the light-source is disposed radially outside the objective lens.

Abstract: An array of optical resonators comprises at least a first type of optical resonators each having a resonant response to an optical field at a first wavelength, and a second type of optical resonators each having a resonant response to an optical field at a second wavelength, being different from the first wavelength. The resonant responses can be selected to reduce chromatic aberrations, or to shape a profile of a light beam, or to selectively switch a near field beam.

Abstract: Compact folded camera modules having auto-focus (AF) and optical image stabilization (OIS) capabilities and multi-aperture cameras including such modules. In an embodiment, a folded camera module includes an optical path folding element (OPFE) for folding light from a first optical path with a first optical axis to a second optical path with a second optical axis perpendicular to the first optical axis, an image sensor and a lens module carrying a lens with a symmetry axis parallel to the second optical axis. The lens module can be actuated to move in first and second orthogonal directions in a plane perpendicular to the first optical axis, the movement in the first direction being for auto-focus and the movement in the second direction being for OIS. The OPFE can be actuated to tilt for OIS.

Abstract: An electronic device including a display, a sensor, and a processor. The processor is configured to, based on an interaction mode which is operated according to a user interaction being initiated, control the sensor to detect a position of a user, control the display to display a graphic object at a position corresponding to the detected position, and change, based on the user interaction being input in the interaction mode, the graphic object and control the display to provide feedback regarding the user interaction.

Abstract: Atoms and atom-like quantum emitters are promising for quantum sensing, computing, and communications. Lasers and microscopes enable high-fidelity quantum control of the atomic quantum bits (qubits). However, it is challenging to scale up individual quantum control to enough atomic quantum nodes for implementing useful and practical quantum algorithms. Here, we introduce methods and systems to holographically implement large-scale quantum circuits that individually address atomic quantum nodes. These methods enable implementation of quantum circuits over large, multi-dimensional arrays of atomic qubits at rates of thousands to millions of quantum circuit layers per second. The quantum circuit layers are encoded in multiplexed holograms displayed on a slow SLM and retrieved by fast interrogation to produce spatial distributions that operate on the qubit array.

Abstract: An exemplary embodiment provides a display device including: a display panel; and an anti-reflective layer configured to overlap the display panel, wherein the anti-reflective layer includes: a nano-pattern layer configured to include a plurality of nanostructures; and a low-refraction layer configured to cover the nanostructures, wherein the nanostructures are irregularly disposed.

Abstract: An auto-focusing method for determining an in-focus position of a plurality of wells in at least a portion of a multi-well plate, the method including using a first objective lens having a first magnification to identify, in each of at least three wells of a selected subset of the plurality of wells, an in-focus position of each well with respect to the first objective lens, on the basis of at least three the in-focus positions, computing a plane along which the at least three wells will be in focus with respect to at least one objective lens having a second magnification that is not greater than the first magnification, and using the at least one objective lens to scan, along the plane, at least some of the plurality of wells in the portion of the plate.

Abstract: A high-efficiency, multiwavelength beam-expander optical system that employs dielectric-enhanced mirrors is disclosed. Each mirror includes a reflective multilayer coating formed from alternating layers of HfO2 and SiO2 that define, in order from the substrate surface, at least first and second sections, wherein the HfO2/SiO2 layer thicknesses are generally constant within a given section and get smaller section by section moving outward from the substrate surface. The first and second sections are respectively configured to optimally reflect different operating wavelengths so that the beam-expander optical system has an optical transmission of greater than 95% at the different operating wavelengths.

Abstract: An image forming optical system 1 includes, in order from an enlargement side, a first optical system 111 having a reflecting surface, and a second optical system 112 having a refracting surface. The image forming optical system 1 is configured to form an intermediate image 104 between the first optical system 111 and the second optical system 112. The first optical system 111 includes, in order from the enlargement side, a first reflecting group 113 having at least one reflecting surface having negative power, and a second reflecting group 114 having a plurality of reflecting surfaces 116 and 117 having positive power. The at least one reflecting surface having negative power includes a reflecting surface 115 closest to the enlargement side in the first reflecting group 113. An absolute value of power of the reflecting surface 115 is smallest in the first optical system 111.

Abstract: A device for shielding a sub-wavelength-scale object from an electromagnetic wave incident on the device. The device includes a layer of dielectric material, a surface of which has a change of level forming a step. The step is in contact with a medium having a refractive index that is lower than a refractive index of the dielectric material. The sub-wavelength-scale object is located within the device in a quiet zone where an electromagnetic field intensity is below a threshold, the quiet zone extending above said surface, in a vicinity of the step, in a direction of incidence of said incident electromagnetic wave.

Abstract: A relay optical system includes a cemented lens in which a first lens, a second lens, and a third lens having are cemented. The first lens is a meniscus lens which is adjacent to the third lens, and a dispersion and a partial dispersion ratio differ for the first lens and the third lens. In a rectangular coordinate system in which a horizontal axis is set to be ?dLA and a vertical axis is set to be ?gFLA, when a straight line expressed by ?gFLA=?×?dLA+?LA (where, ?=?0.00163) is set, ?gFLA and ?dLA of medium of the first lens are included in an area determined by the following conditional expression (1) and conditional expression (2), and the following conditional expression (3) is satisfied: 0.67??LA??(1) ?dLA<50??(2) ?1.4<mg<?0.6??(3).

Abstract: A microscope includes illumination optics for fluorescence excitation of point light sources of a sample, detection optics and a camera having a sensor. A density of the point light sources is kept low so as to minimize a crossover of point light sources that are behind or close to one another in each image captured by the camera. A means for subdividing a detection aperture into individual sub-apertures is provided in a beam path of the detection optics such that images generated by the individual sub-apertures on the sensor of the camera depict an object volume from different spatial directions.

Abstract: An image stabilization apparatus includes a fixed member, a lens, a movable member, a guide member, and first to third rolling members. At least one of the fixed member, the movable member, and the guide member includes a movement restrictor configured to restrict a moving range of a restricted rolling member as at least one of the first to third rolling members in a predetermined direction on the plane perpendicular to the optical axis. The movement restrictor is formed such that as the restricted rolling member approaches to an end portion of the moving range, a center of the restricted rolling member approaches to a centerline in a width direction perpendicular to the predetermined direction of the movement restrictor.

Abstract: A relay optical system includes an object-side lens which is disposed nearest to an object, an image-side lens which is disposed nearest to an image, and a cemented lens having a positive refractive power. The object-side lens has a positive refractive power and is disposed such that a convex surface is directed toward an object side. The image-side lens has a positive refractive power and is disposed such that a convex surface is directed toward an image side. A plurality of the cemented lenses is disposed between the object-side lens and the image side lens and the following conditional expression (1) is satisfied: 0.04<Gce/Drel<0.4??(1) where, Gce denotes the smallest of intervals of adjacent cemented lenses, and Drel denotes a distance from an object plane up to an image plane of the relay optical system.

Abstract: Disclosed is a four-dimensional (4D: 3D+time) multi-plane broadband imaging apparatus capable of recording 3D multi-plane and multi-colour images simultaneously. The apparatus includes: one or more non-reentry quadratically distorted (NRQD) gratings which can produce a focal length and a spatial position corresponding to each diffraction order, thus simultaneously transmitting wavefront information between multiple object/image planes and a single image/object plane; a grism system which can limit chromatically-induced lateral smearing by creating a collimated beam in which the spectral components are laterally displaced; a lens system which is configured to adjust the optical path; and the optical detector(s). In an optical system, the multiple object/image planes, the lens system, the grism system, the NRQD grating(s), the optical detector(s) and the single image/object plane are located on the same optical axis.

Abstract: A waveguide display includes light sources, a source waveguide, an output waveguide, and a controller. Light from each of the light sources is coupled into the source waveguide. The source waveguide includes gratings with a constant period determined based on the conditions for total internal reflection and first order diffraction of the received image light. The emitted image light is coupled into the output waveguide at several entrance locations. The output waveguide outputs expanded image lights at a location offset from the entrance location, and the location/direction of the emitted expanded image light is based in part on the orientation of the light sources. Each of the expanded image light is associated with a field of view of the expanded image light emitted by the output waveguide.