Abstract: An accommodation remote control includes a housing adapted for wearing on an upper extremity of a user, a range-finding sensor, a wireless transmitter, and a controller. The controller causes the accommodation remote control to perform operations including: emitting a range finding signal from the range-finding sensor to measure a distance between the accommodation remote control and a body part of the user, determining an accommodation value for an ophthalmic device based upon the distance measured with the range-finding sensor, and transmitting an accommodation control signal from the wireless transmitter to adjust an optical power of the ophthalmic device. The accommodation control signal is based upon the accommodation value.

Abstract: The present invention provides a glass lens for a lens module. The glass lens includes an optical portion having an optical axis, and an extending portion surrounding a periphery of the optical portion. The optical portion includes an object-side surface and an image-side surface opposite to the object-side surface, and the extending portion includes a first extending surface extending from the object-side surface towards a direction far away from the optical axis and a second extending surface extending from the image-side surface towards the direction far away from the optical axis. The first extending surface and the second extending surface are respectively provided with a first recess and a second recess filled with a black substance, and the second recess is closer to the optical axis with respect to the first recess.

Abstract: An RF frequency tuning-in-silicon photoconductive-switch-based high power microwave system including a cradle; a transmission line proximate the cradle; a photosensitive silicon material switch component also proximate the cradle; a laser light source having a varied illumination incidence location on the photosensitive material; and a laser alignment component providing the location of the illumination incidence location on the photosensitive material; whereby the inductance of the switch varies as a function of the incidence location of the illumination on the photosensitive material.

Abstract: A display unit of the disclosure includes a display panel and a light-distribution adjustment sheet. The light-distribution adjustment sheet is provided on the display panel, and includes a protrusion that protrudes toward the display panel. The protrusion includes a first region including a curved surface, and a second region including a flat surface.

Abstract: A plastic barrel includes an object-end portion, an image-end portion, a tube portion and a plurality of wedge structures. The object-end portion includes an outer object-end surface, an object-end hole and an inner annular object-end surface. The image-end portion includes an outer image-end surface, an image-end opening and an inner annular image-end surface. The tube portion connects the object-end portion and the image-end portion, and includes a plurality of inclined surfaces. The wedge structures are disposed on at least one surface of the inner annular object-end surface, the inner annular image-end surface and the inclined surfaces, wherein the wedge structures are regularly arranged around the central axis, and each of the wedge structures includes an acute end and a tapered section. The tapered section connects the surface, which the wedge structure is disposed on, and the acute end.

Abstract: An imaging optical system includes at least one lens, and an optical element having a transmittance that changes in a radial direction perpendicular to an optical axis. The transmittance of the optical element is minimized at a first position in the radial direction separated from an optical axis position of the optical element by a distance smaller than an effective radius rd of the optical element. The transmittance at the first position is smaller than that at the optical axis position and that at a second position separated from the optical axis position by rd.

Abstract: It is an object of the present invention to provide a display apparatus having a configuration and a structure that enable virtual images to be observed by an observer to exhibit high contrast, and enable the observer who uses the display apparatus to safely act in a real environment while reliably recognizing an external environment. A display apparatus of the present invention includes: a frame to be mounted to a head of an observer; an image display apparatus attached to the frame; and a dimming apparatus 700. The image display apparatus includes an image forming apparatus, and an optical apparatus 120 having a virtual-image forming region 701 in which virtual images are formed. The optical apparatus 120 overlaps with at least a part of the dimming apparatus 700.

Abstract: There is provided a camera module including a plurality of ball bearings to support the driving of a lens barrel at the time of compensating for unintended camera movement due to disturbance such as hand shake. The lens barrel may be driven in first and second directions, independently, by one driving force exerted in the first direction perpendicular to an optical axis and by another driving force exerted in the second direction perpendicular to both the optical axis and the first direction, thereby preventing driving displacement from being generated at the time of compensating for unwanted motion such as hand shake while securing reliability against external impact, and having reduced power consumption at the time of compensating for the disturbance.

Abstract: The invention relates to dispersion adjustment units for electromagnetic radiation having a spectral width, e.g., for laser pulses. The dispersion adjustment unit includes at least one dispersive element for producing angular dispersion in an angular dispersion region limited by two interaction regions of the electromagnetic radiation with the at least one dispersive element. In the angular dispersion region, individual spectral components of the electromagnetic radiation are associated with optical paths extending at an angle to one another. Furthermore, the dispersion adjustment unit includes an optical unit that is arranged in the angular dispersion region and includes an optical element that transmits the electromagnetic radiation. The optical element effects an incidence-angle-dependent parallel offset of the individual spectral components of the electromagnetic radiation with respect to the propagation of the individual spectral components before and after the optical unit.

Abstract: A polarization converter based on taking a high-order TE mode as a transition mode comprises a ridge waveguide (1) and a slab waveguide (2) that are arranged in double layers and varying in width, and a strip waveguide (4) which is varying in width. The ridge waveguide (1) is disposed on the upper end face of the slab waveguide (2), and is aligned with two ends of the slab waveguide (2). The right end of the ridge waveguide (1) and the slab waveguide (2) are connected with the strip waveguide (4) with the varying width. A TM0 mode enters from the left ends of the ridge waveguide and the slab waveguide, and is converted into a TE0 mode for output. On the contrary, the TE0 mode enters from the right end of the strip waveguide and is converted into the TM0 mode for output.

Abstract: A photographing optical lens assembly includes six lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fifth lens element and a sixth lens element. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof and includes at least one convex shape in an off-axis region thereof.

Abstract: The present disclosure relates to the field of optical lenses and discloses a lens module. The lens module includes a lens barrel, a first lens disposed on an object side of the lens barrel, and a fixing member pressing the first lens on the lens barrel from an object side of the first lens. The fixing member includes a top wall pressing the first lens, and a side wall extending from an outer edge of the top wall towards an image side and fixedly connected to an outer edge of the lens barrel. The top wall and the side wall define a receiving space. The receiving space receives a part of the first lens. The fixing member is provided with notches penetrating the top wall and communicating with the receiving space. The notches are filled with glue. The glue adheres and fixes the lens barrel to the fixing member.

Abstract: An electronic device may have a display. Inactive portions of the display such as peripheral portions of the display may be masked using an opaque masking layer. An opening may be provided in the opaque masking layer to allow light to pass. For example, a logo may be viewed through an opening in the opaque masking layer and a camera may receive light through an opening in the opaque masking layer. The display may include upper and lower polarizers, a color filter layer, and a thin-film transistor layer. The opaque masking layer may be formed on the upper polarizer, may be interposed between the upper polarizer and the color filter layer, or may be interposed between the color filter layer and the thin-film transistor layer. The upper polarizer may have unpolarized windows for cameras, logos, or other internal structures.

Abstract: A multi-color dielectric coating is formed using interleaved layers of dielectric material, having alternating refractive index, to create reflections at selected wavelengths, thus appearing as different colors. Etching of selected layers at selected locations changes the color appearance of the etched locations, thus generating a coating having multiple colors. The thicknesses of the layers are chosen such that the path-length differences for reflections from different high-index layers are integer multiples of the wavelength for which the coating is designed.

Abstract: Examples of the present disclosure are related to systems and methods associated with glasses. More specifically, embodiments are related to glasses with separable arms with a triangular shaped support, wherein a first portion of an arm is separable from a second portion of the arm at a location that substantially aligns with a user's temple.

Abstract: A lens for correcting astigmatism, possibly of ocular type, shaped so as to reduce the aberrations caused by accidental displacements with respect to the ideal correction position, in particular so as to ensure satisfactory performance even when rotated with respect to the ideal axis thereof.

Abstract: A device and method of ophthalmic diagnosis of lesions on retina utilizing a slit lamp apparatus with a pupil reader and at least one visible LED and one Infrared LED to detect a lesion on the retina of an eye.

Abstract: A light source module may include a base with a support feature protruding from a surface of the base and securing a light source to direct radiation away from the surface. A lens cells may be attached proximate to the surface, optionally by being secured within a sleeve that is attached at one end to the surface. A multi-conductor part may include electrical conductors and a base temperature sensor that contacts the base. The base temperature sensor may be electrically connected to at least one of the plurality of conductive elements and further connected to an optical ignition safety protection system configured to interrupt current to the light source if the base temperature sensor indicates that a temperature of the light source is outside of a safe range.

Abstract: An apparatus includes a beam source, beam forming optics, a first focusing lens having a focal length, a second focusing lens having a focal length similar to the focal length of the first lens, and a lens translator configured to move the second lens transversely relative to the beam forming optics and to the first lens, and thereby move the elongated focus transversely. In some embodiments, the beam forming optics are positioned between the beam source and the first focusing lens, the first focusing lens is positioned between the beam forming optics and the second focusing lens, and the beam forming optics, the first focusing lens, and the second focusing lens are arranged to receive a beam of laser radiation from the beam source and to form the beam into an elongated focus.

Abstract: A multilayer arrangement for a flat glazing unit. The multilayer arrangement extends in a main plane and has at least one narrow side, wherein the multilayer arrangement has a functional layer, layer electrodes are arranged on surface sides of the functional layer, which surface sides are oriented parallel in relation to the main plane, the layer electrodes each have at least one contact-making surface which is oriented parallel in relation to the main plane and on which a respective common supply electrode, which is different from the respective layer electrode, is arranged along a respective contact-making edge, and the contact-making edges are each at least a subregion of the narrow side. The invention also makes provision for at least portions of the contact-making surfaces to at least partially overlap as seen perpendicularly in relation to the main plane and/or for the supply electrodes to each have a comb structure.