Abstract: Provided is a lens unit that is for an infrared region and that allows occurrence of a tilt error to be easily suppressed. A lens unit (4) is a lens unit which is used for an infrared region that includes at least any one of wavelengths in a range of 7 ?m to 14 ?m, the lens unit including: a first lens (1) and a second lens (2). A circumferential edge part (1c, 2c) of at least one of the first lens (1) and the second lens (2) has a cutout part (1d, 2d), and the first lens (1) and the second lens (2) are integrated by an adhesive (12) that is introduced to the cutout part (1d, 2d).

Abstract: In an optical system according to each exemplary embodiment, an interval between adjacent lens units changes in focusing from an infinite-distance object to a close-distance object, and a first in-focus state in which ?=?1.2 is obtained can be caused, where ? is a lateral magnification of an entire system. The optical system according to each exemplary embodiment includes a plurality of focus lens units, and out of a focus lens unit having a largest absolute value of a focus sensitivity and a focus lens unit having a second largest absolute value of a focus sensitivity in a state in which focus is put on an infinite-distance object, a focus lens unit disposed on an object side is a lens unit LA, and a focus lens unit disposed on an image side is a lens unit LB. A partial optical system LC including all lenses disposed on the image side of the lens unit LB has negative refractive power. The partial optical system LC satisfies a predetermined conditional expression.

Abstract: An optical lens assembly includes a phase retarder; a partial-reflective-partial-transmissive element; and in order from a visual side to an image source side: an absorptive polarizer, a reflective polarizer, a first lens with refractive power, a second lens with refractive power, and a third lens with positive refractive power; wherein the phase retarder and the partial-reflective-partial-transmissive element are sequentially arranged from the visual side to the image source side, and are disposed between the reflective polarizer and the third lens. The optical lens assembly may become lightweight and have good image quality when satisfying a specific condition.

Abstract: A mobile kit for imaging microscopic organisms in a liquid sample, comprises a slide having a liquid sample chamber with a liquid sample inlet, and a slide reader containing a lens and configured to receive the slide and image the liquid sample chamber through the lens using a mobile imaging device that is coupled to the slide reader. The liquid sample chamber of the slide is a linear elongated liquid sample chamber, and the slide reader comprises a track configured to receive the slide and guide movement of the slide along the track allowing the length of the linear elongated liquid sample chamber to be imaged through the lens and a drive module configured to move the slide along the track.

Abstract: A confocal microscopy apparatus 100 for imaging a sample 2 under investigation by chromatic confocal microscopy comprises an illumination source device 10 being arranged for creating illumination light 1 having an illumination spectrum covering a plurality of illumination wavelengths, a focusing device 40 including at least one focusing lens 41 being configured for focusing the illumination light 1 along an imaging axis z into a plurality of wavelength-dependent focal planes in an axial imaging range of a sample 2 to be investigated, wherein the at least one focusing lens 41 is further arranged for collecting scattering light 3 created in the focal planes of the sample 2, and a detector device 50 being arranged for spectrally resolved detecting of the scattering light 3, wherein the at least one focusing lens 41 is made of a dispersive focusing lens 41 material with an Abbe number equal to or below 8, like e. g. ZnSe.

Abstract: The disclosure provides a method for ptychography position correction based on probe weighting. The method includes: collecting diffraction light field intensity information and simultaneously initializing information functions of illumination probes and a sample to be tested and probe positions; obtaining and importing an exit wave into a propagation model to obtain a simulated diffraction light field and replacing the diffraction light field intensity information to obtain an updated diffraction light field; importing the updated diffraction light field into a backpropagation model and obtaining a diffraction exit wave and updating the information functions of the sample to be tested and the illumination probes at each scan position; and forming a probe matrix around the probe positions, updating the probe positions after calculating a correlation, and repeating the above steps to iterate until the predetermined number of iterations is completed or a predetermined condition is reached.

Abstract: A surgical microscope with a fluorescence excitation illuminator receives fluorescence emissions from a target, the surgical microscope having an optical output port. A tunable filter passes a filtered portion of light from the surgical microscope, the filtered light has wavelengths selected by the tunable filter and is provided to a high-resolution, broad-bandwidth electronic camera. The electronic camera converts light from the tunable filter to electrical signals. A processor processes the electrical signals to form an image of the target including estimated fluorophore depth, the image corrected for optical absorption and scattering parameters of the target. The processor also performs deformation modeling of the target to track tumor position changes during surgery. Embodiments track surface changes of the target using stereo cameras to support the deformation modeling, some images may include information from preoperative CT or MRI, and some images may map biomarkers like HbO2 and DexoHb.

Abstract: An image sensor includes: (1) a first pixel and a second pixel each including: a photoelectric conversion unit that photoelectrically converts light and generates an electric charge; and a transfer unit that transfers the electric charge generated by the photoelectric conversion unit to an accumulation unit that accumulates the electric charge, the first pixel and the second pixel being arranged in a row direction; (2) a first supply unit that supplies a signal which controls the transfer unit of the first pixel; and (3) a second supply unit that supplies a signal which controls the transfer unit of the second pixel.

Abstract: What is provided is an endoscopic imaging device that can curb an increase in the number of assembly steps. The endoscopic imaging device includes an optical system, a tubular holding frame configured to accommodate a part of the optical system therein and to extend in an optical axis direction, an electronic component having a wiring portion and held in the holding frame, and a substrate having a winding portion configured to extend in a circumferential direction along an outer circumferential surface of the holding frame, and a straight portion configured to extend from the winding portion to one side in the optical axis direction, wherein the substrate has a conductive portion disposed across the winding portion and the straight portion, and the wiring portion is connected to the conductive portion disposed in the winding portion.

Abstract: There is provided a vehicular display device including: a display unit configured to emit a display image including display light and projected onto a projection target member provided in a vehicle; a first optical component configured to reflect the display light emitted from the display unit; a first case having a space configured to accommodate the first optical component; and a second case configured to press the first optical component accommodated in the space against the first case.

Abstract: There are provided a display unit and a vehicular display device. The display unit is mounted on a vehicular display device and emits a display image including display light to be projected onto a projection target member provided outside the vehicular display device. The display unit includes: a display panel configured to display the display image based on light from a light source; a case that supports the display panel; and a heat dissipation member configured to dissipate heat accumulated in the display unit. A shield case of the case and the heat dissipation member are connected.

Abstract: A projection unit for a field-of-view display device, which is configured to show a virtual image via reflection on a partially transparent reflection plate arranged in the field of view of a user, such as a vehicle window, includes a projector-based image generator having a projector and a projection screen illuminated thereby, wherein the projector is configured to generate a real image on the projection screen and the projection screen is configured to project the resulting light beam bundle in a predetermined shape and direction onto the reflection plate; and a contrast element arranged in relation to the projection screen and configured such that it is only passed by the light beam bundle originating from the projection screen and this is largely without attenuation, and it is passed twice by the ambient light incident on the projection screen and reflected thereon and eliminates it.

Abstract: An image generation apparatus includes a light source unit, a light guide plate that emits light emitted from the light source unit in a predetermined direction, a liquid crystal device that generates an image by light emitted from the light guide plate, and a housing having a heat dissipation function. The light source unit and the liquid crystal device are attached to the housing.

Abstract: Examples of the disclosure relate to optical apparatus, modules, and devices. The optical apparatus includes a control panel and at least one light guide. The at least one light guide includes at least; a diffractive in-coupler configured to in-couple one or more input beams of light into the light guide from a first light engine, an expander configured to expand the one or more input beams of light, and an out-coupler configured to out-couple the one or more expanded beams of light from the light guide. The at least one light guide is transparent and is provided overlaying at least part of the control panel and is configured to display virtual images at a longer focal distance than the control panel.

Abstract: A near-eye display device is disclosed. The near-eye display device includes: a plurality of display screens for image display; the plurality of display screens at least including: a first display screen, a second display screen and a third display screen; and an imaging lens group configured to image displayed images of the display screens; the imaging lens group including at least: a first lens and a second lens; where the first lens and the second lens are both on a light-emitting side of the first display screen, and the second lens is on a side of the first lens away from the first display screen; the second display screen and the third display screen are on a side of the first lens away from the first display screen.

Abstract: A head-mounted display including multiple displays tiled together is provided. A first display may include an active region and an inactive region. A second display may be aligned with the inactive region. The first display and the second display may have different resolutions and may present visual information with different display qualities based on their respective resolutions. For example, the first display may include a lower resolution than the second display. The inactive region may be centered in the first display, and the second display may be centered with respect to the first display. The head-mounted display may provide a continuous image(s) (or video(s)) with a high resolution on the second display, while providing the remainder of the image(s) on the low resolution first display. Based on the multiple displays being tiled, the multiple displays may present one or more images, or one or more videos, in a non-overlapping manner.

Abstract: Novel applications for anamorphic lenses in smart glasses. Anamorphic lenses preserve straightness of motion and lines (i.e., “linearity”). As a practical matter, existing computer vision models can be used with anamorphic images without re-training or intermediate conversion steps (unlike fisheye lenses). The contents of the present disclosure provide substantial improvements for applications that have different FOV requirements along different axis. Solutions for ergonomic hand placement (relative to gaze), non-square photosites, binning and eye-tracking are discussed throughout.

Abstract: A head-mountable device can include adaptable components, which move to comfortably engage the face of the user and to exclude light from an external environment. A head-mountable device can include a light seal that includes discrete portions that bend and/or pivot as needed to conform to a face of the user. Such mobility allows the portions to be oriented with respect to corresponding regions of the face, so that an engagement surface of each portion directly engages the corresponding region of the face to maximize the surface area of contact. Such a configuration can be provided while also providing an aesthetically pleasing appearance by providing one or more covers that form continuous, breathable surfaces with the desired opacity.

Abstract: A wearable display apparatus is described herein. The wearable display apparatus includes an image generator that forms a 2D image, a partially transmissive mirror having a curved reflective surface, a beam splitter disposed to reflect light toward the curved mirror surface, and an optical image relay that is configured to conjugate the formed 2D image at the image generator to a curved focal surface of the partially transmissive mirror.

Abstract: Disclosed herein are implementations for a digital stereoscopic display and digital loupes utilizing the digital stereoscopic display. The stereoscopic display may include display of magnified images.

Abstract: A display device includes a transparent plate, an image light emission unit configured to emit image light toward one principal surface of the transparent plate, a transmission hologram configured to duplicate the image light emitted from the image light emission unit to transmit the image light as reproduction light, a reflection hologram provided on the other principal surface side of the transparent plate, and configured to reflect, on the one principal surface, the reproduction light transmitted by the transmission hologram and passing through the transparent plate toward an eye of the user, and an absorption layer provided on the other principal surface side of the reflection hologram, the absorption layer being formed by combining an absorption member configured to absorb a part of the reproduction light not reflected on the one principal surface of the reflection hologram and a transparent member.

Abstract: An augmented reality providing apparatus is provided. The augmented reality providing apparatus includes a lens including a first lens portion including a first reflective member, and a second lens portion including a second reflective member, and a display device on one side of the lens for displaying first and second images, wherein the first reflective member reflects the first image at a first angle, and the second reflective member reflects the second image at a second angle that is different from the first angle.

Abstract: A near-eye display for conveying virtual images within a real-world view includes a projector having an illuminator with an extended light source including a plurality of cells, each containing light sources, and a partial homogenizer for partially overlapping light from the plurality of cells at an illumination plane of a spatial light modulator. A controller adjusts the outputs of the plurality of cells to alter a distribution of the light over the illumination plane.

Abstract: A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface grating area and the second surface grating area; and singulating an eyepiece from the wafer, the eyepiece including a portion of the first surface grating area and a portion of the second surface grating area. The first surface grating in the eyepiece corresponds to an input coupling grating for a head-mounted display and the second surface grating corresponds to a pupil expander grating for the head-mounted display.

Abstract: A display assembly suitable for use with a virtual or augmented reality headset is described and includes the following: an input coupling grating; a scanning mirror configured to rotate about two or more different axes of rotation; an optical element; and optical fibers, each of which have a light emitting end disposed between the input coupling grating and the scanning mirror and oriented such that light emitted from the light emitting end is refracted through at least a portion of the optical element, reflected off the scanning mirror, refracted back through the optical element and into the input coupling grating. The scanning mirror can be built upon a MEMS type architecture.

Abstract: Image light is projected to a waveguide assembly. One or more sensors monitors movement of the waveguide assembly. The image light is corrected based in part on the monitored movement.

Abstract: A wearable electronic device can include an optical assembly that supports a display and is moveable within the wearable electronic device. A compliant tracking assembly can be provided to facilitate precision alignment to allow the tracking assembly to operate as an encoder system. For example, the sensor of the tracking assembly can be consistently aligned with a scale so that movement of the optical assembly relative to the chassis can be tracked and controlled accurately and precisely. Such a compliant mechanism can provide protection of the sensor throughout the life of the wearable electronic device.

Abstract: The present invention relates to a nose pad eye/gaze tracking module applicable to known augmented/virtual reality glasses, to visual remote guide devices in general, constituting the nose pads part of said devices, without using any kind of connector. The invention further relates to a method for fastening the nose pad eye/gaze tracking module to said kind of device.

Abstract: A laser projector includes a laser assembly, a beam combination mirror group and a phase delaying component. The laser assembly includes a red laser light emitting region, a blue laser light emitting region and a green laser light emitting region. Red laser light is polarized in a first direction, green laser light is polarized in a second direction, and blue laser light is polarized in a third direction. The beam combination mirror group combines the red laser light, the blue laser light and the green laser light. The phase delaying component is on a light emitting path of at least one of the red laser light, the blue laser light the green laser light, and changes a polarization direction of the at least one of the red laser light, the blue laser light or the green laser light before being output by the beam combination mirror group.

Abstract: The disclosure below is directed to optical/photonic devices and systems configured to control polarization state of light for selective privacy protection in optical imaging. In particular, the various embodiments disclosed below provide an application of polarization manipulation techniques with multiple optical polarization filters to enable partial or full privacy while maintaining functioning of image-based spatial mapping and localization algorithms used in video devices such as virtual reality (VR), augmented reality (AR), and robot/drone cameras. In the disclosed example approaches, the various polarization filters are configured to allow no or negligibly small amount of light from the privacy protected regions of a scene into the cameras in a privacy mode and to reject 100% of all light and enable full privacy in a block mode. The disclosed approaches also dynamically account for orientation changes during operation of the camera devices such that privacy is dynamically protected in real-time.

Abstract: Various embodiments include a camera system having a tilt actuator arrangement for tilting an image sensor. For example, the tilt actuator may be used to tilt the image sensor, relative to a lens group of the camera system, to provide tilt compensation and/or optical image stabilization (OIS). The tilt actuator arrangement may include one or more voice coil motor (VCM) actuators. According to various embodiments, the VCM actuator(s) may include fixed drive magnets and movable drive coils. The drive magnets may be coupled with a housing of the camera system. The drive coils may be coupled with a substrate, and the substrate may also be coupled with the image sensor, such that the image sensor and the substrate move together.

Abstract: A camera module includes a housing including an opening and configured to accommodate an optical path conversion unit and a lens module, a shielding member configured to shield the opening of the housing, and a reflection reducing member disposed on an inner surface of the shielding member and configured to reduce internal reflections from the inner surface of the shielding member occurring between an end of the lens module and an image sensor.

Abstract: A contact lens, including (a) at least one polymeric matrix and (b) absorbing semi-conductive nanoparticles which are dispersed in the polymeric matrix, wherein the absorbance through a layer of the contact lens is higher than 0.5 for each light wavelength ranging from 350 nm to ?cut, ?cut being in the visible range, preferably in the range from 400 nm to 480 nm, the layer having a thickness ranging from 50 ?m to 250 ?m.

Abstract: The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel layer and a posterior outer hydrogel layer. A contact lens of the invention is characterized by having a difference in surface softness between its poterior (BC) and anterior (FC) surfaces.

Abstract: A photochromic lens for glasses, including photochromic dyes, wherein the photochromic dyes are suitable for passing from a not activated state to an activated state. The activated state of the photochromic dyes provides that photochromic dyes change color when hit by an electromagnetic radiation. The photochromic lens includes at least a first portion and at least a second portion, wherein the first portion has a reflecting material coating reflecting the electromagnetic radiation, and the second portion is devoid of the coating. The photochromic lens has a first surface with at least a first portion and at least a second portion, wherein the first surface faces outward from the glasses, outward meaning a direction with respect to the photochromic lens mounted on a glasses frame.

Abstract: Methods and devices are described that relate to eyewear that are specifically designed to allow emissions of circadian-active green light to reach the observer. An example wearable device includes one or more windows positioned to allow light from a light source to propagate toward a position of a wearer's eyes. and a spectral filter that comprises a coating positioned on one or more sections of the one or more windows. The spectral filter includes a multi-layer stack of dielectric material with alternate high and low indices of refraction. The number thicknesses of the layers are selected to provide designed transmission and blocking characteristics to allow circadian-active spectra to pass through while blocking spectral content other than the circadian-active spectra. The filter characteristics include one contiguous transmission region to transmit 98%-100% of a precisely-selected green region and two contiguous blocking regions that block 80-100% of the remaining spectral content.

Abstract: Techniques for providing wearable electronic devices with electrical components are disclosed. The electrical components can provide electrical technology to eyewear to facilitate audio support including enhanced audio output. The electrical components can operate independently or together with other electrical components provided elsewhere. The wearable electronic devices with electronic components can, for example, provide audio output, audio enhancements, or event-related audio content.

Abstract: A system and a method include a dimmable window system including window structure having a first surface and an opposite second surface, and an electrical film component that is operably coupled with the second surface of the window structure. The electrical film component is controlled to change between plural different states. A power source provides power to the electrical film component to change the electrical film component between the plural different states.

Abstract: The present disclosure provides an optical modulating structure. The optical modulating structure includes a lower member extending along an insulating layer, a first protrusion over the lower member, and a second protrusion over the lower member and separated from the first protrusion. A first mask layer is formed over the optical modulating structure, wherein the first mask layer covers the second protrusion and a first portion of the lower member between the first protrusion and the second protrusion. A first doping region is formed in an exposed portion of the lower member and at least a portion of an exposed sidewall of the first protrusion. A dielectric layer is formed between the first protrusion and the second protrusion. A method for manufacturing the optical modulating structure is also provided.

Abstract: An optical device and method of manufacture is presented. In embodiments a method includes forming a first layer of optical material, patterning the first layer into a stair-step pattern, depositing a dielectric material onto the stair-step pattern, and forming a second layer of optical material over the dielectric material and at least partially within the stair-step pattern.

Abstract: In some embodiments, the present disclosure provides an optical module. A waveguide includes a rib, and further includes a first protrusion and a second protrusion respectively on opposite sides of the rib. Further, the waveguide is formed of a first semiconductor material. A photodetector is in the waveguide and comprises a PN junction in the rib. A P type region of the PN junction extends to the first protrusion, and an N type region of the PN junction extends to the second protrusion. Further, the first and second protrusions accommodate heavily doped P and N type contact regions. A semiconductor region is on the PN junction. The semiconductor region comprises a second semiconductor material different the first semiconductor material. For example, the second semiconductor material may have a smaller bandgap than the first semiconductor material to enhance quantum efficiency.

Abstract: An optical device and methods of manufacturing such optical devices are presented. In embodiments the optical device is a tunable beam splitter which is made by forming a first dopant region over a substrate, the first dopant region comprising a first waveguide and a second waveguide, depositing a cladding material over the first waveguide and the second waveguide, and forming a second dopant region overlying the first waveguide and the second waveguide, wherein the forming the second dopant region comprises forming a first region extending over both the first waveguide and the second waveguide, the first region having a constant concentration of a first dopant.

Abstract: An optical voltage probe including: an optical modulator 1 having two modulation electrodes 11, 12 configured to modulate an intensity of an incident light depending on a voltage between the two modulation electrodes 11, 12 and output the modulated incident light; an input/output optical fiber 2 connected with the optical modulator 1; two contact terminal attachment portions 5, 6 to which two contact terminals 3, 4 can be detachably attached and contacted, the two contact terminals 3, 4 being connected with the modulation electrodes 11, 12 and in contact with points to be measured; and a package 8 that houses the optical modulator 1 and a part of the input/output optical fiber 2, wherein a voltage signal induced via the contact terminals 3, 4 is converted into an optical intensity modulation signal and outputted, and the package 8 covers an inside with a metal body 8a for shielding electric field and a magnetic shielding material 8b for shielding magnetic field.

Abstract: An electro-optic modulator and an electro-optic device are provided. The electro-optic modulator includes: a first optical waveguide, a second optical waveguide, and a traveling wave electrode, where the traveling wave electrode includes a first grounding electrode, a first signal electrode, a second signal electrode, and a second grounding electrode that are spaced apart from each other; and the first optical waveguide and the second optical waveguide are both arranged between the first signal electrode and the second signal electrode. The electro-optic modulator has a plurality of extension sections along a extension direction thereof. The plurality of extension sections include a plurality of straight sections and at least one curved section. Each curved section is provided between two adjacent straight sections.

Abstract: An electro-optic modulator that is disposed along a surface of a substrate includes an optical waveguide having an optical waveguide core disposed along the surface, and two electrode stacks, each of the stacks extending along a corresponding side of a segment of the optical waveguide core to modulate light therein. Each stack includes two electrode segments vertically stacked over the surface of the substrate; wherein at least a part of the segment of the optical waveguide core along the surface is vertically located between the electrode segments of each electrode stack.

Abstract: The liquid crystal material has a delta delay value of 0.01 or greater, comprising one or more compounds selected from the group consisting of the compounds represented by formulae (ii-3-a), (ii-3-d) and (ii-5-b). In the formulae, Rii1 represents an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, Sii1 is a halogen atom.

Abstract: A glazing unit with electrically controllable optical properties, includes a laminated pane with a functional element having electrically controllable optical properties, and a control unit (10) electrically connected to the functional element, wherein the control unit has a data set or a programmed function which assigns a voltage ramp to each temperature in a predefined temperature range, wherein the control unit is suitable for ascertaining the temperature, selecting a voltage ramp from the data set on the basis of the ascertained temperature or calculating it by the programmed function, and applying the electrical voltage with the selected or calculated voltage ramp to the functional element.

Abstract: A display device is provided, including: a display panel; a light guide component on a light entering side of the display panel; and a supporting assembly connected to the display panel and the light guide component. The supporting assembly is configured to support the display panel and the light guide component, and the supporting assembly includes: a frame body having a first supporting surface facing the display panel, the light guide component being fixed on the first supporting surface; and a light transmission portion on the first supporting surface and on an outer side of a side surface of the light guide component, the light transmission portion having a second supporting surface facing the display panel. The display panel is fixed on the second supporting surface, and the light transmission portion is configured to refract light so that the refracted light exits through the second supporting surface.

Abstract: A display device may include a display panel; a frame which is positioned behind the display panel, and to which the display panel is coupled; a plurality of substrates positioned between the display panel and the frame, and coupled to the frame; a plurality of light sources positioned on the plurality of substrates; and an extension board which includes a driver chip, which extends in a direction intersecting the plurality of substrates, and to which the plurality of substrates are coupled.

Abstract: Provided are a display panel and an electronic device. The display panel includes a first substrate and a second substrate. The display panel further includes a rubber frame, a hydrophobic structure, and a drainage structure. An outer peripheral side of the rubber frame, the first substrate, and the second substrate define an accommodation space. The hydrophobic structure is disposed in the accommodating space, and the hydrophobic structure defines a buffering space and a drain outlet communicating with the buffering space. The drainage structure includes a water collecting layer, a first electrode, and a second electrode. The water collecting layer is configured to condense water vapor entering the buffering space into a water drop. The first electrode and the second electrode are configured to receive a control signal having a predetermined voltage difference to control the water drop to move toward the drain outlet.