Abstract: A light-guiding device includes: a group of mirrors that converts a first beam bundle including a plurality of first laser beams into a second beam bundle including a plurality of second laser beams; a group of collimating lenses disposed at a stage previous to the group of mirrors and including collimating lenses that each collimate a divergence, in an F-axis direction, of a corresponding one of the plurality of first laser beams; and a converging lens disposed at a stage subsequent to the group of mirrors, the converging lens converges the second beam bundle by refracting each of the plurality of second laser beams.

Abstract: A head-mounted display (HMD) presented herein comprises a shell and a controller. The shell encloses a display element and includes a dynamic attenuator having one or more controllable pixels that control an amount of light from the local area to an eye box of the HMD. The controller determines, based on positional information for one or more objects in a local area surrounding the HMD, whether a user wearing the HMD is within a threshold distance of an object in the local area. Responsive to the determination, the controller identifies a field of view that includes the object. The controller instructs the dynamic attenuator to allow light from the local area over the identified field of view into the HMD.

Abstract: A positional shift of a lens of a stacked lens structure is reduced. A plurality of through-holes is formed at a position shifted from a first target position on a substrate according to a first shift. A lens is formed on an inner side of each of the through-holes using a first mold in which a plurality of first transfer surfaces is disposed at a position shifted from a predetermined second target position according to a second shift and a second mold in which a plurality of second transfer surfaces is disposed at a position shifted from a predetermined third target position according to a third shift. The plurality of substrates having the lenses formed therein is formed according to direct bonding, and the plurality of stacked substrates is divided. The present technique can be applied to a stacked lens structure or the like, for example.

Abstract: A system of lenses for projecting at least one light source includes from the source and in the direction of propagation of the light, at least one first group of optical elements made up of at least one first convergent lens called primary lens, in contact with said light source, obtained from a material exhibiting a high constringence and exhibiting a ratio between its thickness along the optical axis and its width greater than 0.5. Also included in said direction of propagation is a second group of optical elements made up of at least one divergent lens obtained from a material exhibiting a low constringence, a pupil, and a third group of optical elements made up of a reflector or of at least one convergent lens obtained from a material exhibiting a high constringence.

Abstract: Disclosed is an adjustable mirror mount that is capable of adjusting a mirror in two axes with a high degree of precision and low cross-coupling. Long horizontal and vertical adjustment arms are used to allow the precision adjustment about both a horizontal axis and a vertical axis.

Abstract: A projection system has a light source, a spatial light modulator, a light recycling system, and a lens assembly. The light source emits source light toward the spatial light modulator. The spatial light modulator modulates, according to an image signal, light incident on the spatial light modulator, so as to form projection light and non-projection light. The light recycling system receives at least a portion of the non-projection light, and guides the at least a portion of the non-projection light toward the spatial light modulator. The lens assembly receives and emits the projection light to form a projection image. The projection system of the present disclosure enables efficient use of non-projection light.

Abstract: A concave display including a first substrate, a second substrate, a display medium, a color filter layer, an optical film and an active device layer is provided. The second substrate is disposed opposite to the first substrate. The display medium is disposed between the first substrate and the second substrate. The color filter layer is disposed on the first substrate. The active device layer is disposed on the first substrate or the second substrate. The optical film is disposed on the first substrate. The optical film is further away from the display medium than the color filter. The optical film includes a base material and optical microstructures embedded in the base material, wherein a refractive index of each of the optical microstructures is smaller than a refractive index of the base material.

Abstract: A multi-eyebox head-up display device and a multilayer combiner are disclosed. The device comprises a projector generates a projected image to a reflector. The reflector generates a reflected image to a multilayer combiner. The multilayer combiner includes at least two superimposed imaging plates, and the semi-reflective surfaces of the superimposed imaging plates are tilted to each other. While the reflected image is projected to the semi-reflective surface of the topmost superimposed imaging plate, the semi-reflective surface of the topmost superimposed imaging plate generates a virtual image. Simultaneously, the reflected image penetrates through the topmost superimposed imaging plate and reaches the lower superimposed imaging plate, and the semi-reflective surface of the lower superimposed imaging plate reflects the light to generate another virtual image. The present invention enables the driver to view the vehicular information at different viewing angles.

Abstract: A display apparatus includes an image generation system that emits image light beams as non-parallel light beams, and a light guide system on which the image light beams emitted from the image generation system are incident without passing through a projection lens system. The light guide system includes a transparent light-incident portion that includes a light-incident surface on which the image light beams are incident and which is a curved surface, and a plurality of reflection surfaces which convert the image light beams incident from the light-incident surface into parallel light beams and are curved surfaces, and a transparent light guide portion of which one end side in a first direction is connected to the light-incident portion. In the light guide portion, the image light beams incident from the light-incident portion are reflected between a first surface and a second surface, and are guided to a light-emitting portion.

Abstract: An optical arrangement comprises two plates, with complementary shaped lens arrays. A decorative image is provided at the plate on the light input side. The plates are displaceable with respect to each other between a pass through mode with the plates in contact or close proximity, and a decorative image mode with the plates apart.

Abstract: A system including an imaging device having a first image capture device configured to detect longwave infrared electromagnetic radiation and a second image capture device configured to detect near infrared electromagnetic radiation. The system further includes a display configured to display a visible representation of the detected infrared longwave electromagnetic radiation and the detected near infrared electromagnetic radiation.

Abstract: A brightness image of a scene is converted into a corresponding frequency domain image and it is determined whether a threshold condition is satisfied for each of one or more regions of interest in the frequency domain image, the threshold condition being that the number of frequencies in the region of interest is at least as high as a threshold value. The results of the determination can be used to facilitate selection of an appropriate block matching algorithm for deriving disparity or other distance data and/or to control adjustment of an illumination source that generates structured light for the scene.

Abstract: The present disclosure generally relates to lithography devices comprising an autofocus system. The autofocus system is configured to individually focus and adjust a plurality of digital micromirror devices. The autofocus system comprises a single light beam and a diffractive optical element configured to split the single light beam into two or more split beams. The two or more split beams are directed to a beam splitter. The two or more split beams are then reflected off the surface of a substrate to at least one position sensor. The position sensor is configured to measure the position of each of the two or more split beams. At least one digital micromirror device is then individually adjusted based on the measured position to adjust the focus of the at least one digital micromirror device with respect to surface height and tilt variations of the substrate.

Abstract: A lighting device for vehicles having a light source and having an optical unit for generating a predetermined light distribution, wherein the optical unit has a micro-optical array having a plurality of micro-optical elements and a microshutter array having a plurality of microshutter elements, wherein the microshutter array has a thickness in the range of 0.1 mm to 2.00 mm.

Abstract: A monochrome imager used in such systems as a scanner can detect watermarks that have been encoded in the color space or chrominance. Such watermarks are called chroma watermarks and are considered more reliable than the traditional classic watermarks, which are encoded based on luminance. The monochrome imager detects the chroma watermark, which has been illuminated with ambient white light from a blue light emitting diode (LED) coated with phosphor.

Abstract: A system and method for combining multiple emitters into a multi-wavelength output beam having a certain band and combining a plurality of these bands into a single output using non-free space combining modules.

Abstract: The invention provides various designs for enabling a non-circular area of collimated light output or to enable tessellation of collimators. In a first aspect, a collimator arrangement comprises a plurality of collimators, each having a circular general outer shape with one or more indentation into the circular general outer shape, wherein each indentation comprises a pair of edges which meet at an internal angle and each indentation defines a pair of external angles where the cut-out meets the general outer shape. The collimators are tessellated with each internal angle adjacent one of the external angles of an adjacent collimator. In another aspect, a collimating optical structure comprises a first section comprising one or more portions of a first collimator lens design with a first diameter and a second section comprising one or more portions of a second collimator lens design with a larger, second diameter.

Abstract: A microlens array, each microlens containing N sides of a convex polygon and N curved surfaces corresponding to the sides, wherein when the line passing through the microlens vertex and perpendicular to the polygon plane is z axis, the line passing through the intersection point (origin) between z axis and the plane and perpendicular to a side is x axis, z coordinate of the curved surface corresponding to the side is z=f(x), a distance from the origin to the side is t, a virtual curved surface in 0?|x|?t is z=F(x), refractive index of the microlens is no, A and C represents constants, and g ? ( x ) = dF ? ( x ) dx = - x ? x ? · Cx 2 + A n 0 ? 1 + ( Cx 2 + A ) 2 - 1 , ? g ? ( x ) - 0.035 ? df ? ( x ) dx ? g ? ( x ) + 0.035 is satisfied and f (x) is determined such that an illuminance distribution in an illuminated area is more uniform than that in the case that the curved surface is shaped in a segment of a circle.

Abstract: A wearable scribing system includes a camera and a microphone which communicate information to a remote system via a receiver/transmitter device. A scribe at the remote system inputs the information into an electronic health record. The wearable scribing system enables direct physician to physician communication.

Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.

Abstract: An apparatus for skin imaging is provided. The apparatus is used in conjunction with a mobile device to obtain digital images using a digital camera and a light source provided by the mobile device. The apparatus includes an optical system for illuminating an object to be imaged with uniform ambient light and a light conduit for delivering reflected light to the mobile device digital camera. The apparatus is removably attachable to the mobile device and/or a mobile device case. One or more optical elements, such as lenses, films, filters, and light caps may be used to improve image quality and/or acquire magnified images.

Abstract: A display device includes a display panel configured to display an image, a window member covering the display panel and having a sensing area provided with a first opening and a second opening, a proximity sensor which overlaps with the sensing area and is configured to provide a first light to the window member through the first opening and receive through the second opening, a portion of a second light defined as a reflected light of the first light, and an optical member including a prism sheet disposed between the window member and the proximity sensor. A first angle between the first light incident from the proximity sensor to the prism sheet and a normal line of the window member is greater than a second angle between the first light which passes through the prism sheet and the normal line of the window member.

Abstract: A display apparatus and a method of displaying, via the display apparatus. The display apparatus includes an image source, a processor configured to render an image at the image source, at least one optical combiner for combining a projection of the rendered image with a projection of a real world image, a first polarizing element for polarizing the projection of the real world image at a first polarization orientation, wherein the first polarizing element is positioned on a first side of the at least one optical combiner upon which the projection of the real world image is incident, and a second polarizing element facing a second side of the at least one optical combiner, polarization properties of the second polarizing element being adjustable, wherein the polarization properties of the second polarizing element are to be adjusted with respect to the first polarization orientation of the first polarizing element.

Abstract: A sensor probe has a connector and the connector's corresponding receptacle on a console have security mechanisms that ensure that the connector and the receptacle are properly connected and mated. The connector and receptacle can have physical security features that block insertion of the connector into the receptacle if they are not aligned in a proper orientation. The console can also include a software security feature that allows optical measurements from the sensor probe only if the connector of the sensor probe and receptacle on the console are connected properly. An adapter can also be used to convert a conventional receptacle mounted on a console into a receptacle with security features.

Abstract: An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. Lateral non-uniformities of output image are improved by means of adjustment of input aperture shape and reflective aperture shape. Cross talk in autostereoscopic and privacy displays may further be improved by light blocking layers arranged on the input end of the waveguide.

Abstract: A value and safety document comprises a substrate having a front side and a back side. An ink layer is applied to the front or back sides of the substrate. A first motif is incorporated into the ink layer, and is combined with a second motif. The second motif is arranged on the same side of the substrate as the first motif. The second motif is configured in the form of an emboss structure comprising a plurality of raised emboss elements having areas of different orientation. The emboss structure forms the second motif having a second tilt or motion effect, by different groups of emboss elements, having different characteristic parameters, reflecting incident light in different spatial areas. The emboss elements have respectively a lateral dimension of less than 30 ?m and a height of less than 10 ?m. The first motif is adapted at least partially to the second motif.

Abstract: Contrast enhancement in a metrology tool may include generating a beam of illumination, directing a portion of the generated beam onto a surface of a spatial light modulator (SLM), directing at least a portion of the generated beam incident on the surface of the SLM through an aperture of an aperture stop and onto one or more target structures of one or more samples, and generating a selected illumination pupil function of the illumination transmitted through the aperture utilizing the SLM in order to establish a contrast level of one or more field images of the one or more target structures above a selected contrast threshold, and performing one or more metrology measurements on the one or more target structures utilizing the selected illumination pupil function.

Abstract: An illumination system for uniform illumination of a target to facilitate imaging of the target by an imaging system. The apparatus which comprises a laser source for generating a plurality of independent or quasi-independent point sources of light; a fiber optic bundle which comprises a plurality of individual optical fibers for each receiving at least one of the plurality of point sources of light, from the laser source, and directing the plurality of point sources of light toward the target for illumination thereof; and an oscillating diffuser for receiving the plurality of point sources of light and oscillating at a frequency so as to redirect each one of the plurality of point sources of light over an area of the target to be illuminated to facilitate uniform illumination and imaging thereof.

Abstract: A light source arrangement for a photolithography exposure system comprises at least three light sources with different wavelengths, and a beam splitting unit comprising at least three inputs, one output, and at least two reflecting faces. An input is assigned to each light source and each reflecting face. The reflecting face reflects light that is emitted from the light source assigned to a corresponding input thereof into the output. The three light sources are arranged on three different sides around the beam splitting unit.

Abstract: Disclosed is an apparatus and a method to preserve linearly polarized laser beam when it passes through a freely twisting beam delivery system such as an articulated arm. The polarization of the output beam from the delivery system will be stable and the same as the polarization of the input beam to the delivery system, and can be used to pump anisotropic laser crystals as well as nonlinear optical crystals.

Abstract: A multi-beam laser cavity unit (10) comprises a laser crystal (13) and lens array (14) disposed in the laser cavity (LC). The lens array comprises an integral piece formed by a plurality of interconnected lenses. Each lens (14a) is configured to form a respective closed optical path (OPa) along the length (Z) of the laser cavity (LC) between the cavity mirrors (11,12) through the laser crystal (13) corresponding to a cavity mode for generating one (LBa) of the plurality of parallel laser beams (LB). The cavity unit (10) can be comprised in a laser system receiving pump light (PL) from a plurality of light sources. For example, the system can be used in a maskless patterning device.

Abstract: It aims to enable to uniform synthesized luminance in an image overlap region of a projection image by a simple process, by means of a mechanism of: performing display control to project a black image as the projection image to be projected from a first projection-type image displaying apparatus to a screen, and project, as the projection image to be projected from a second projection-type image displaying apparatus to the screen, an image in which dimming correction to the overlap region of the projection images respectively projected by the first and second projection-type image displaying apparatuses has been enabled; measuring a luminance characteristic of the second projection-type image displaying apparatus based on a photographed image obtained by photographing the overlap region; and setting a dimming correction characteristic for the overlap region by the first projection-type image displaying apparatus, based on the measured luminance characteristic.

Abstract: An optical element includes a plurality of reflectivity variation partially reflecting mirrors and a light-transmittance member, and the plurality of reflectivity variation partially reflecting mirrors have a plurality of regions having different reflectivity in an inclination direction. The plurality of regions include at least a low reflectivity region positioned on a side far away from an emission surface and a high reflectivity region positioned on a side close to the emission surface. An occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned far away from an incidence portion is larger than an occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned on a side close to the incidence portion.

Abstract: In various embodiments, wavelength beam combining laser systems incorporate optical cross-coupling mitigation systems and/or engineered partially reflective output couplers in order to reduce or substantially eliminate unwanted back-reflection of stray light.

Abstract: The present disclosure provides an optical system. In one aspect, the optical system includes a plurality of imagers configured to emit an electromagnetic radiation, a plurality of optical sensors configured to receive the electromagnetic radiation from the imagers, and a beam splitting device disposed at an optical path between the imagers and the optical sensors. In one example, the beam splitting device is a multi-way beam splitter configured to receive the electromagnetic radiation from one of the imagers and separate the received electromagnetic radiation into a plurality of portions, each separated portion of the received electromagnetic radiation being directed to one of the optical sensors.

Abstract: A sealed battery includes: a case main body that has an opening; and a sealing plate that closes off the opening, the sealing plate being joined to the case main body by a weld portion. The weld portion includes a weld bottom surface intersecting with the boundary surface of the case main body and the sealing plane, and the weld bottom surface being substantially orthogonal to the depth direction. A depth of the weld portion on a first virtual plane including the boundary surface, is greater than the depth of the weld portion on a second virtual plane including an outer surface of the case main body, the outer surface being opposite side from the boundary surface in the thickness direction of the case main body.

Abstract: A beam transformation element (1) for transforming electromagnetic radiation, in particular laser radiation, comprising an irradiation surface (2) and an emission surface (8). The irradiation surface (2) comprises at least four cylindrical segments (3), wherein each cylindrical segment (3) has at least two adjacent segments. A cylinder longitudinal axis (4) of a first cylindrical segment (3) is not parallel to each cylinder longitudinal axis (4) of an adjacent cylindrical segment (3).

Abstract: According to the present invention there is provided a method of reducing speckle effects in a projected image which is displayed on a display surface, comprising the steps of transmitting an input light beam to a first interferometer, generating a plurality of primary transmit beams at the first interferometer using the input light beam, using the plurality of primary transmit beams to generate interference fringes at a display surface.

Abstract: A laser module according to the present disclosure includes a laser diode, a first collimating lens, and a beam twister. The laser diode includes a plurality of emitters and emits laser light from each of the plurality of emitters through a light emission surface. The first collimating lens is provided at a first distance from the light emission surface of the laser diode and parallelizes a fast-axis-wise divergence of the laser light. The beam twister is provided at a second distance away from the first collimating lens and turns the laser light approximately 90 degrees. Each of the plurality of emitters has a width of 5 ?m to 120 ?m on the light emission surface. The plurality of emitters have a pitch of 295 ?m to 305 ?m on the light emission surface.

Abstract: A system and method for combining multiple emitters into a multi-wavelength output beam having a certain band and combining a plurality of these bands into a single output using non-free space combining modules.

Abstract: An image sensor includes a first pixel and a second pixel. The first pixel includes a first light sensitive element, a first light filter, and a first microlens. The second pixel is disposed adjacent to the first pixel and includes a second light sensitive element, a second light filter, and a second microlens. The first pixel is configured to direct at least some of the light received at the first microlens to the second light sensitive element of the second pixel to increase optical crosstalk so as to reduce color aliasing.

Abstract: According to an illustrative embodiment, a head-mounted display is provided. The head-mounted display includes a detector for detecting an angle of tilt of the head-mounted display; and an output unit for outputting an indication of the angle of tilt.

Abstract: The disclosure is directed to a system and method of controlling spectral attributes of illumination. According to various embodiments, a portion of illumination including an excluded selection of illumination spectra is blocked, while another portion of the illumination including a transmitted selection of illumination spectra is directed along an illumination path. In some embodiments, optical metrology is performed utilizing the spectrally controlled illumination to enhance measurement capability. For instance, the spectral attributes of illumination utilized to analyze different portions of a sample, such as different semiconductor layers, may be selected according to certain measurement characteristics associated with the analyzed portions of the sample.

Abstract: In various embodiments, a system and method for manufacturing and using an optical enhancement assembly in combination with an image-capturing device are presented. In example embodiments, the optical enhancement assembly is affixed over an aperture on the image-capturing device using a securing agent. Light is allowed to travel through the optical enhancement assembly and into the aperture of the image-capturing device such that the light can be recorded as a still image or video. The optical enhancement assembly includes at least a unique fractalized diffraction pattern that impacts light traveling into the aperture and causes a unique diffraction effect on the image or video recorded by the image-capturing device.

Abstract: There is disclosed a novel system and method for improving spectral resolution and signal-to-noise ratio of a captured spectrum by employing digital beam reforming, digital slicing, and digital multiplexing. In an embodiment, the method comprises: and entrance aperture for the light to enter the apparatus, a collimating element (refractive or reflective), a dispersive element (single- or multi-axis), a focusing element (refractive or reflective), and a linear or array detector for acquisition of the spectrum. The spectrum is then digitally beam reformed, digitally beam sliced to increase spectral resolution, and digitally beam multiplexed to increase the signal-to-noise ratio. In addition the disclosed invention is also capable of performing digital beam refocusing which means the optical focusing power can be chosen such that its performance surpasses the performance of any analog optical focusing element thereby further increasing the spectral resolution and the signal-to-noise ratio of the spectrum.

Abstract: A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.

Abstract: Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit.

Abstract: A head-mounted display including a first optical system is provided. The first optical system includes an image surface, a stop surface, a first optical stack disposed between the image surface and the stop surface and a second optical stack disposed between the first optical stack and the stop surface. The first optical stack includes a first optical lens and a partial reflector. The second optical stack includes a second optical lens, a multilayer reflective polarizer and a first quarter wave retarder disposed between the multilayer reflective polarizer and the first optical stack. The multilayer reflective polarizer may be convex toward the image surface along orthogonal first and second axes.

Abstract: An automated warehouse (1) comprises a plurality of drawers (2), each drawer comprising a plurality of housing zones (3) each adapted to receive an item (A). The warehouse also comprises moving means configured for moving a drawer (2) between a rest position in which it is stored in a respective housing seat (5) and an access portion (6), and vice versa. The access portion (6) comprises a laser targeting system (8) configured to generate at least one point-like beam (9) and at least a linear beam (10) defining a localization track to locate an item or a housing zone in the drawer (2) disposed in the access portion (6). The automated warehouse (1) comprises a control unit operatively connected at least to the laser targeting system (8) and programmed for receiving information on at least one item to be taken/stored, and controlling the laser targeting system (8) so as to position the localization track according to the item to be taken/stored.

Abstract: In various embodiments, wavelength beam combining systems feature multiple beam emitters each emitting an individual beam, as well as multiple micro-optics arrangements each disposed optically downstream from a beam emitter to intercept the beam emitted thereby and direct the beam toward a dispersive element for combination into a multi-wavelength output beam.