Abstract: A miniaturized structured light projection module is provided. The miniaturized structured light projection module includes a light source assembly and a projecting lens. The light source assembly has a plurality of light source units, each of which is provided with a default projected pattern on its surface. The projecting lens is disposed above the light source units. The default projected patterns of the light source units are disposed on a front focal plane of the projecting lens.

Abstract: A low-height projector assembly includes a biconvex lens, a converging lens, an aperture stop, and a beam-steerer between the biconvex lens and the converging lens. The biconvex lens has a principal plane, a focal length, and a first optical axis. The converging lens has a second optical axis laterally offset from the first. The beam-steerer is configured to steer light from the biconvex lens to the converging lens. An aperture-stop plane intersects the second optical axis and the aperture stop. On the second optical axis, at least one of a front surface and a back surface of the converging lens is between the aperture-stop plane and the beam-steerer. The axial chief ray's propagation distance from the principal plane to the aperture stop differs from the focal length by less than half the depth of focus of the biconvex lens.

Abstract: The present disclosure discloses an optical imaging lens assembly. The lens assembly sequentially includes, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, and a fourth lens. The first lens has a positive refractive power, and a convex object-side surface; the second lens has a positive refractive power or a negative refractive power, and a concave object-side surface and a convex image-side surface; the third lens has a positive refractive power, a concave object-side surface, and a convex image-side surface; and the fourth lens has a positive refractive power or a negative refractive power. An effective focal length f1 of the first lens and a total effective focal length f of the optical imaging lens assembly satisfy: 1.2<f1/f<1.8.

Abstract: Provided is the image pickup apparatus including an optical system forming an image of an object, an image pickup element receiving light from optical system, a driving unit driving at least one of an optical element included in optical system and image pickup element in a direction including a component of a direction perpendicular to an optical axis of optical system, and a determining unit performing first determination that driving unit is set to be in a non-driving state (NDS) or performing second determination that driving unit is set to be in a driving state (DS) based on information regarding object. When first determination is performed, determining unit outputs a signal for maintaining driving unit in NDS or switching driving unit from DS to NDS. When second determination is performed, determining unit outputs a signal for maintaining driving unit in DS or switching driving unit from NDS to DS.

Abstract: A method of autostereoscopic imaging including providing an autostereoscopic illumination unit including a lens field composed of a multiplicity of individual lenses or concave mirrors, and modulating an emission characteristic of the light source such that the individual lenses or the concave mirrors are illuminated only partly by the light source, wherein light from the light source impinges on the individual lenses or concave mirrors such that an emission characteristic of a three-dimensional object is imitated, the lens field extends over a spatial angle range of at least 2 sr relative to the light source or an external observer, the individual lenses or concave mirrors are distributed over the lens field and are at least partially sequentially irradiated, and the light source is formed by one or more lasers and the laser or each of the lasers irradiates/irradiate only one of the individual lenses at a specific point in time.

Abstract: A head-mounted device includes a central frame support and at least one removably connected optics arm. The at least one optics arm has first and second free ends that are removably connected to a second end of the central frame support at a point between the first and second free ends. The optics arm extends away from the central frame support and is configured to present information to the user via a display device.

Abstract: A method for manufacturing an optical device comprising providing a plurality of initials bars each having a first side face presented with a first optical component arrangement; positioning the initial bars in a row with their first side faces facing a neighboring one of the initial bars; fixing the initial bars to obtain a bar arrangement; obtaining prism bars by segmenting the bar arrangement by at least one of the steps: conducting a plurality of cuts so that each prism bar comprises a portion of at least two different ones of the initial bars, separating the bar arrangement into sections along cut lines or by creating cut faces at an angle with initial-bar directions; dividing the first optical component arrangement for obtaining a plurality of passive optical components, wherein each prism bar comprises one or more passive optical components comprising a first reflective face each which is of non-planar shape; segmenting prism bars into parts.

Abstract: Provided are an optical unit and a display device being able to inhibit unwanted light, which is generated when a dichroic mirror transmits part of color light to be reflected, from being emitted from an emission surface of a dichroic prism. In the optical unit, color filters (a first color filter, a second color filter, and a third color filter) are provided between a dichroic prism and a first panel, a second panel, and a third panel, the color filters selectively transmitting light of wavelengths incident on the dichroic prism from each of the panels. Further, an optical resonator, which has a resonance wavelength corresponding to a wavelength range of image light incident on the dichroic prism from each of the panels, is provided on the first panel, the second panel, and the third panel.

Abstract: Provided is the image pickup apparatus including an optical system forming an image of an object, an image pickup element receiving light from optical system, a driving unit driving at least one of an optical element included in optical system and image pickup element in a direction including a component of a direction perpendicular to an optical axis of optical system, and a determining unit performing first determination that driving unit is set to be in a non-driving state (NDS) or performing second determination that driving unit is set to be in a driving state (DS) based on information regarding object. When first determination is performed, determining unit outputs a signal for maintaining driving unit in NDS or switching driving unit from DS to NDS. When second determination is performed, determining unit outputs a signal for maintaining driving unit in DS or switching driving unit from NDS to DS.

Abstract: The invention relates to an ophthalmic lens (1) for a pair of sunglasses, said ophthalmic lens including at least one substrate (13), the lens (1) having a transmission spectrum such that: the transmittance at wavelengths shorter than 380 nm is lower than 1%; the spectrum includes a first transmittance maximum (MAX-1) having a transmittance higher than 8% between 390 nm and 420 nm; the spectrum includes a first transmittance minimum (MIN-1) between 426 nm and 440 nm; the transmittance between 450 nm and 500 nm is higher than 10%; the spectrum includes between 570 nm and 595 nm a second transmittance minimum (MIN-2); the spectrum includes between 590 nm and 620 nm a second transmittance maximum (MAX-2); the spectrum includes in the wavelength range comprised between 620 nm and 640 nm a third transmittance minimum (MIN-3); the transmittance at wavelengths longer than 640 nm is higher than 14%.

Abstract: The invention relates to a display device, in particular a head-mounted display or a head-up display, for representing a two-dimensional and/or three-dimensional scene. The display device comprises a spatial light modulator device having pixels, and a beam offset device. The spatial light modulator device is illuminatable with light. The beam offset device is configured to be controllable in such a way that the light modulated by the pixels of the spatial light modulator device is laterally displaceable by less than one pixel extent.

Abstract: In an optical system of a display device, an image light projecting device emits image light toward a first side in a first direction. A reflective element of a first light-guiding system emits the image light emitted from the image light projecting device toward a second side in the first direction. A first diffraction element having a reflectivity emits the image light emitted from the reflective element toward the first side in the first direction. A second diffraction element having a reflectivity emits the image light emitted from the first diffraction element toward the second side in the first direction and causes the image light to be incident on an eye of an observer. An optical path from the first diffraction element to the second diffraction element is provided in a second light-guiding system.

Abstract: A gonioscopic attachment can attach to a gonioscope and can include atraumatic retention elements that are configured to engage an eye to retain the gonioscope relative to the eye. The gonioscopic attachment can be configured to position the gonioscope so that at least a portion of the concave distal surface of the gonioscopic optical element is spaced apart from the eye, and/or so that the curvature of the distal surface is angularly offset from the curvature of the eye. The gonioscope can include a fixation point configured to be visible to the subject when the gonioscope is positioned on the eye. In some embodiments, the retention elements can be incorporated directly into the gonioscope. A coupling mechanism can couple the gonioscope to a lid speculum. The gonioscope can include a light pipe, which can be configured to directly light into the eye.

Abstract: A gonioscopic attachment can attach to a gonioscope and can include atraumatic retention elements that are configured to engage an eye to retain the gonioscope relative to the eye. The gonioscopic attachment can be configured to position the gonioscope so that at least a portion of the concave distal surface of the gonioscopic optical element is spaced apart from the eye, and/or so that the curvature of the distal surface is angularly offset from the curvature of the eye. The gonioscope can include a fixation point configured to be visible to the subject when the gonioscope is positioned on the eye. In some embodiments, the retention elements can be incorporated directly into the gonioscope. A coupling mechanism can couple the gonioscope to a lid speculum. The gonioscope can include a light pipe, which can be configured to directly light into the eye.

Abstract: A rear view assembly includes a housing, an electro-optic assembly disposed within the housing, and an ambient light sensor operably coupled with the electro-optic assembly. An at least partially light transmissive light sensor lens is integrally formed as part of the housing proximate the ambient light sensor. The light sensor lens is free of mechanical fasteners.

Abstract: The imaging lens consists of, in order from the object side, a positive first lens group that moves to the object side during focusing from a long distance to a short distance, and a second lens group that does not move during focusing. The first lens group has a first-B sub-lens group. The first-B sub-lens group consists of, in order from the object side, a positive b1 lens, a negative b2 lens concave toward the image side, an aperture stop, a negative b3 lens concave toward the object side, and a positive b4 lens. The second lens group consists of, in order from the object side, a negative lens, a positive lens, and a negative lens. Predetermined conditional expressions are satisfied.

Abstract: Disclosed is a method for testing the feasibility of a pair of spectacles, the pair of spectacles comprising an identified spectacle frame. The method includes steps of: a) acquiring a range of values of at least one first parameter relating to a spectacle wearer, in all of which range it is desired to ensure the feasibility of the pair of spectacles, b) acquiring a range of values of at least one second parameter that relates to a spectacle wearer and that is different from each first parameter, in all of which range it is desired to ensure the feasibility of the pair of spectacles, c) confirming, for a characteristic number of values of each second parameter, that the pair of spectacles is feasible whatever the value of each first parameter comprised in its range.

Abstract: A mirror assembly has one or more axes of motion and includes a mirror that is movable and forms an acute angle with a plane orthogonal to its axis of motion. The mirror assembly may include a first reflective mirror surface in the incoming optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion, and a second reflective mirror surface in the outgoing optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion and is moveable in a linear translation to scan the mirror in the interferometer in a way to generate a normal interferogram.

Abstract: A method for determining an ophthalmic lens having unwanted astigmatism, the ophthalmic lens being adapted to a wearer, the method including: a wearer prescription data providing during which wearer prescription data indicative of an ophthalmic prescription of the wearer are provided; a wearer focal data providing during which wearer focal data indicative of the wearer preferred image focal plan are provided; an ophthalmic lens determining during which the ophthalmic lens is determined based on the prescription of the wearer and the wearer focal data to reduce impact of unwanted astigmatism of the ophthalmic lens for the wearer.

Abstract: One example method involves rotating a housing of a light detection and ranging (LIDAR) device about a first axis. The housing includes a first optical window and a second optical window. The method also involves transmitting a first plurality of light pulses through the first optical window to obtain a first scan of a field-of-view (FOV) of the LIDAR device. The method also involves transmitting a second plurality of light pulses through the second optical window to obtain a second scan of the FOV. The method also involves identifying, based on the first scan and the second scan, a portion of the FOV that is at least partially occluded by an occlusion.