Abstract: The disclosure provides a display system and a method for displaying a virtual image to a viewer An optical system of the disclosure includes a spatial light modulator, a light source, a Fourier transform lens, a viewing system and a processing system. The spatial light modulator is arranged to display holographic data in the Fourier domain, illuminated by the light source. The Fourier transform lens is arranged to produce a 2D holographic reconstruction in the spatial domain corresponding to the holographic data. The viewing system is arranged to produce a virtual image of the 2D holographic reconstruction. The processing system is arranged to combine the Fourier domain data representative of a 2D image with Fourier domain data representative of a phase only lens to produce first holographic data, and provide the first holographic data to the optical system to produce a virtual image.

Abstract: An eye-examining apparatus in which a visible light optical system for observing a shape of an examinee's eye and an infrared optical system for detecting a shape of the cornea of the examinee's eye are integrated. The eye-examining apparatus having an integrated optical system comprises: an infrared light source for irradiating a cornea of the examinee's eye with infrared light; a visible light source for irradiating the eye with visible light; an image detector both for detecting an image of the infrared light which is irradiated from the infrared light source and reflected from the cornea of the eye and for detecting an image of the visible light which is irradiated from the visible light source to the eye; and a visible light blocking filter inserted in an optical path of the visible light and the infrared light traveling toward the image detector for blocking the visible light.

Abstract: The objective optical system includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power. Focusing is carried out by moving the second lens group. The third lens group includes a positive lens and a cemented lens, and the cemented lens includes a positive lens and a negative lens. A first sub-unit includes a lens positioned on the object side of a predetermined air space and a second sub-lens group includes a lens positioned on an image side of the predetermined air space. The predetermined air space is the maximum air space among the air spaces in the third lens group.

Abstract: Systems and methods for generating head-up displays (HUDs) using waveguides incorporating Bragg gratings in accordance with various embodiments of the invention are provided. The term HUD is typically utilized to describe a class of displays that incorporates a transparent display that presents data without requiring users to look away from their usual viewpoints. HUDs can be incorporated in any of a variety of applications including (but not limited to) vehicular and near-eye applications, such as googles, eyewear, etc. HUDs that utilize planar waveguides that incorporate Bragg gratings in accordance with various embodiments of the invention can achieve significantly larger fields of view and have lower volumetric requirements than HUDs implemented using conventional optical components.

Abstract: Various embodiments herein relate to networks of electrochromic windows. The networks may be configured in particular ways to minimize the likelihood that the windows on the network draw more power than can be provided. The network may include particular hardware components that provide additional power to windows as needed. The network may also be configured to adjust how the windows therein transition to prevent overloading the network. The techniques described herein can be used to design networks of electrochromic windows that are undersized when considering the amount of power that would be needed to simultaneously transition all the windows on the network using normal transition parameters, while still allowing simultaneous transitions to occur.

Abstract: Provided are an optical lens assembly and an electronic apparatus having the same. The optical lens assembly having a plurality of lenses arranged from an object side toward an image side where an image sensor is disposed, includes a bending unit configured to reflect light input from the object side in a first direction toward a second direction; and a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, which are arranged in the second direction in order from the bending unit toward the image side. The first lens group includes a first lens having negative refractive power and disposed adjacent to the bending unit and a second lens having positive refractive power.

Abstract: An optical imaging lens may include a first, a second, a third, a fourth, a fifth and a sixth lens elements positioned in an order from an object side to an image side. The optical imaging lens may satisfy (G12+G56)/(G23+T3+G34)?2.500, wherein an air gap between the first lens element and the second lens element along the optical axis is represented by G12, an air gap between the second lens element and the third lens element along the optical axis is represented by G23, an air gap between the third lens element and the fourth lens element along the optical axis is represented by G34, an air gap between the fifth lens element and the sixth lens element along the optical axis is represented by G56, and a thickness of the third lens element along the optical axis is represented by T3.

Abstract: A glazing having electrically switchable properties is presented. The glazing includes, areally arranged in sequence, a substrate, a first electrically conductive layer, an active layer, and a second electrically conductive layer. According to one aspect, at least one electrically insulating barrier layer is areally arranged within, and completely covered areally by, one of the first and second electrically conductive layers. According to another aspect, the active layer is an electrochromic functional element, that includes an electrochromic layer adjacent the first electrically conductive layer, and a counter electrode adjacent the second electrically conductive layer.

Abstract: A variable power optical system 3 used in a parallel stereoscopic microscope apparatus 100 and the like includes a plurality of optical paths in which optical axes are arranged substantially parallel, includes a plurality of lens groups that change the magnification of a diameter of a luminous flux entering substantially parallel to each of the optical paths to eject the luminous flux as substantially parallel luminous fluxes, and at least two lens groups move along the optical axis in each optical path according to the change in the magnification. At least two lens groups of at least one optical path among the plurality of optical paths move in a direction including a component perpendicular to the optical axis according to the change in the magnification at at least part of a section where the magnification is changed from a high-power end state to a low-power end.

Abstract: An objective optical system includes a lens group and an optical path splitting element. The optical path splitting element is disposed on an optical path of the lens group, the optical path splitting element includes an optical path splitting surface configured to form a first optical path and a second optical path, an optical path length in the first optical path is different from an optical path length in the second optical path, a sum total of the number of transmissions of light and the number of reflections of light in the second optical path is larger than a sum total of the number of transmissions of light and the number of reflections of light in the first optical path, and an optical surface satisfying following conditional expression (1) is disposed on the first optical path, 0.8?MR650/MR550?0.9??(1).

Abstract: A display apparatus includes: a display surface configured to display an image; and a concave mirror configured to reflect light beams from the display surface toward a transparent member, in which a virtual image of the image is presented by the transparent member. An optical path after a first light beam is reflected in the transparent member coincides with an optical path after a second light beam is reflected in the transparent member by the reflection in the concave mirror, the first light beam reaching the transparent member from one point on the display surface and reflecting on a front surface of the transparent member, and the second light beam reaching the transparent member from the one point and reflecting on a rear surface of the transparent member.

Abstract: An accessory for a camera body, the camera body including a second camera-side clock terminal to which a second clock signal is input, a first camera-side power supply terminal that outputs first power, and a camera-side input terminal to which a signal indicating whether or not data communication is allowed is input, the accessory includes: a second terminal that contacts with the first camera-side power supply terminal; a sixth terminal that contacts with the camera-side input terminal; a tenth terminal that contacts with the second camera-side clock terminal; a first terminal group comprising a plurality of terminals between the second terminal and the sixth terminal; and a second terminal group comprising a plurality of terminals between the sixth terminal and the tenth terminal, wherein the number of terminals in the first terminal group is same as the number of terminals in the second terminals.

Abstract: A microscope apparatus including an electromagnetic wave source configured to generate an illuminating electromagnetic wave. The microscope apparatus includes a first beam splitter configured to split the illuminating electromagnetic wave into a first component along a first path and a second component along a second path. The microscope apparatus includes a movable reflector module configured to adjust the second path. The microscope apparatus includes a second beam splitter configured to recombine the first component and the second component. The microscope apparatus includes an observing device arranged along the first path and configured to receive the recombined first component and second component. The microscope apparatus is configured to acquire, from the observing device, a phase image based on positioning of the movable reflector module and representative of an electric field distribution near an object located along the first path between the first beam splitter and the second beam splitter.

Abstract: An optical system is provided, including a first optical module, a second optical module, and an optical path adjusting mechanism. The first and second optical modules are respectively configured to sustain a first optical element and a second optical element which respectively have a first optical axis and a second optical axis perpendicular to each other. The first optical module has a first electromagnetic driving assembly. The optical path adjusting mechanism, disposed between the first and second optical modules, allows light to enter the second optical module which includes an optical path adjusting unit and a second electromagnetic driving assembly which are arranged in the incident direction of light.

Abstract: One general aspect includes a system to tint at least a portion of a vehicle window, the system including: a memory configured to include one or more executable instructions and a processor configured to execute the executable instructions, where the executable instructions enable the processor to: monitor ambient light in a surrounding vehicle environment; and based on the ambient light, dim at least a portion of an OLED window located at a vehicle.

Abstract: The endoscope optical system includes in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power. Switching between a normal observation and a magnified observation is possible by fixing the first lens group and the third lens group, and moving the second lens group. The third lens group includes a cemented lens. The cemented lens includes an object-side lens and an image-side lens, and the following conditional expressions (1) and (2) are satisfied: 0.471<nd02?nd01<0.475??(1) 52.6<vd01?vd02<53??(2).

Abstract: An anti-reflective, anti-static coating, optical articles employing such a coating, and methods of forming the same. The coating formed of alternating layers of low, mid, and/or high refractive index oxide materials and one or more layers of electrically conductive, substantially non-oxide forms of the same materials employed to form the alternating layers of low, mid, and/or high refractive index oxide materials.

Abstract: Embodiments are disclosed for an optical waveguide display configured for use with a near-eye display (NED) device. In an embodiment the waveguide display includes a light-transmissive substrate and an optical coupling element configured to input light rays to the substrate or output light rays from the substrate, the optical coupling element configured to deflect a plurality of wavelengths of an incident light ray collinearly for propagation within the light-transmissive substrate through total internal reflection (TIR). The optical coupling element can include a pattern of nano-structures that collectively form a metasurface on the substrate.

Abstract: A camera module actuator is described including a magnet, a coil disposed to face the magnet, and a driver configured to apply a driving signal to the coil to move the magnet. The camera module actuator also includes a detector configured to detect a position of the magnet from a change in inductance of the coil, based on the movement of the magnet.

Abstract: A variable power optical system 3 used in a parallel stereoscopic microscope apparatus 100 and the like includes a plurality of optical paths in which optical axes are arranged substantially parallel, includes a plurality of lens groups that change the magnification of a diameter of a luminous flux entering substantially parallel to each of the optical paths to eject the luminous flux as substantially parallel luminous fluxes, and at least two lens groups move along the optical axis in each optical path according to the change in the magnification. At least two lens groups of at least one optical path among the plurality of optical paths move in a direction including a component perpendicular to the optical axis according to the change in the magnification at at least part of a section where the magnification is changed from a high-power end state to a low-power end.