Abstract: A webcam module, including a front casing, a rear casing, a support base, a lens, a blocking cover, and a lever, is provided. The front casing has a lens hole. The rear casing is disposed at the front casing and forms an accommodating space. The support base is rotatably disposed in the accommodating space. The lens is disposed on a front side surface of the support base facing the front casing. The blocking cover is slidably sleeved around the support base and faces the front casing. The lever is connected to the blocking cover and protrudes above the front casing and the rear casing. The lever is adapted to drive the blocking cover to slide along the support base. The lever is adapted to drive the blocking cover and the support base to rotate relative to the front casing with an axis as the center.

Abstract: The present disclosure is directed to an optical system internally having an intermediate imaging position that is conjugated to a magnification conjugate point on a magnification side and a reduction conjugate point on a reduction side, respectively, the optical system including: a magnification optical system having A (A is an integer of three or more) pieces of lens elements, positioned on the magnification side with respect to the intermediate imaging position; and a relay optical system having B (B is an integer of two or more) pieces of lens elements, positioned on the reduction side with respect to the intermediate imaging position. A first lens group composed of ? pieces (? is one or more and less than B) of lens elements positioned first from the magnification side in the relay optical system has a negative power.

Abstract: The optical system includes a projector, a deflector, a polarizer, a first grating coupler structure, and a second grating coupler structure. The projector emits three beams having different wavelengths. The deflector is disposed below the projector and is configured to change incident angles of the three beams and to focus the three beams at the same region of the first grating coupler structure. The first grating coupler structure is below the deflector and is configured to couple the three beams into a light-guide lens such that the three beams travel the same optical path within the light-guide lens. The light-guide lens is connected to the first grating coupler structure and is configured to transmit the three beams. The polarizer is disposed between the projector and the deflector and is configured to filter out transverse electric (TE) modes or transverse magnetic (TM) modes of the three beams.

Abstract: An imaging lens includes a front group having negative power, an aperture stop, and a rear group having positive power, in order from an object side. In the front group, a first lens surface has a convex shape toward the object side. In the rear group, a second lens surface has a convex shape toward the object side, a third lens surface has a convex shape toward the image side, and the third lens surface has an infrared ray cut coat. A curvature radius of the second lens surface is represented by Rr, a curvature radius of the third lens surface is represented by Re, a distance from the second lens surface to the third lens surface on an optical axis is represented by Da, and the following condition is satisfied: 1.6<(Rr+|Re|)/Da<2.3.

Abstract: An optical imaging lens, in order from an object side to an image side along an optical axis, includes a first optical assembly, a second optical assembly, a third optical assembly, a first aperture, a fourth optical assembly, a fifth optical assembly, a second aperture, a sixth optical assembly, and a seventh optical assembly, wherein one of the first optical assembly, the second optical assembly, the third optical assembly, the fourth optical assembly, the fifth optical assembly, the sixth optical assembly, and the seventh optical assembly is a compound lens formed by adhering at least two lenses, while the others are single lens, thereby achieving the effect of high image quality and low distortion.

Abstract: A display system employs multiple micro-electromechanical system (MEMS) mirrors in series to receive collimated light and direct the light to provide light having input angles corresponding to a desired field of view at a point or line at an incoupler (IC) of a waveguide without an optical relay. An initial one or more MEMS mirrors accepts collimated light and generates the scan angles. A last MEMS mirror in the series scans at a range of angles proportional to the scan angles generated by the initial MEMS mirror(s) and directs the scanned light back to a spot or a line at the IC.

Abstract: Systems of the present disclosure can provide a head-mountable device with a head securement element that allows a user to adjust how the head securement element fits near the ears of the user. Examples of adjustment mechanisms described herein allow a user to control the size, shape, flexibility, and/or position of certain regions of the head securement element with respect to the ears of the user. Accordingly, the user can select a configuration that distributes forces evenly, maximizes comfort, and allows the user to enjoy the head-mountable device for longer durations of time.

Abstract: A color filter module is provided. The color filter module is arranged on a display panel. The color filter module includes a transparent substrate and a color resist layer. The transparent substrate includes multiple sub-pixel regions arranged in an array. The color resist layer is arranged on the transparent substrate. The color resist layer includes multiple color resist units. The color resist units are respectively arranged across at least two sub-pixel regions, and the color resist units form a staggered array on the transparent substrate.

Abstract: A system for imaging a retina of an eye includes a first lens for positioning proximate to the eye; a light source positioned to illuminate the eye when the system is aligned with the eye; an image sensor adapted to capture a retinal image of the retina through the first lens; an aperture disposed along an optical path extending from the image sensor and passing through the first lens; and a processing apparatus communicatively coupled to the image sensor and the light source, wherein the processing apparatus includes logic that when executed by the processing apparatus causes the system to perform operations including: illuminating the eye with the light source and capturing the retinal image with the image sensor.

Abstract: An optical system, a lens module, and an electronic device are provide. The optical system includes, in order from an object side to an image side along an optical axis, a first lens with a negative refractive power, a second lens with a positive refractive power, a third lens with a negative refractive power, a fourth lens with a refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power. An object-side surface of the fifth lens has at least one inflection point. At least one of an object-side surface and an image-side surface of the sixth lens has at least one inflection point. The optical system satisfies the following expression: ?9<f4/|f1|<3.5.

Abstract: Various systems, devices, articles and methods related to one or more local luminescent defects disposed within semiconductor body including silicon. A respective defect included in the one or more defects supports a respective bound exciton. A respective pair of computational states is defined at the respective defect and one computational state of the pair of computational states includes a first configuration for the respective exciton. Information stored in the respective pair of computational states can be manipulated according to various systems, devices, articles and methods described herein.

Abstract: The present embodiment relates to a lens driving device which includes: a substrate; a housing; a bobbin; a sensing coil; a first magnet; a second magnet; a third magnet; a dummy member; a first coil that includes a first coil unit and a second coil unit; and a first position sensor that is disposed on the substrate and corresponds to the sensing coil, wherein the first magnet and the second magnet are positioned on opposite sides from each other, the third magnet and the dummy member are positioned on opposite sides from each other, the sensing coil is provided with a driving signal, and the first position sensor senses the strength of the magnetic field of the sensing coil and outputs an output signal.

Abstract: The present application can provide a thin polarizing plate having excellent antireflection performance in all directions including the side as well as the front, and having excellent folding durability and durability against short wavelengths. In addition, the present application can provide an organic light-emitting display device to which the polarizing plate is applied and a display device comprising the same.

Abstract: To solve the problems of the prior art, an optical element driving mechanism is provided. The optical element driving mechanism includes a fixed part, a movable part, and a driving assembly. The movable part is movable relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part.

Abstract: A projection system includes a first optical system and a second optical system disposed on an enlargement side of the first optical system. The first optical system includes a first lens group having positive power, a second lens group disposed on the enlargement side of the first lens group and having negative power, and an optical path deflector disposed between the first lens group and the second lens group. The second optical system includes a reflection member having a concave reflection surface. The second lens group includes three aspherical lenses. Conditional Expression (1) below is satisfied, 0.25<|F|×FNO/Ymax<0.5??(1) where F represents the focal length of the entirety of the projection system, FNO represents the F number of the projection system, and Ymax represents a maximum image height in a reduction-side conjugate plane.

Abstract: An optically-transparent device (100) is disclosed which comprises a main part (10) of dielectric material having a refractive index n2, said device being configured for forming a field intensity distribution in a near zone of said device from electromagnetic waves incidentally illuminating said device, when said device is embedded into a dielectric material having a refractive index n1 lower than said refractive index n2. Said device (100) further comprises at least one insert (11) of dielectric material having a refractive index n3 higher than said refractive index n2, said at least one insert being at least partly inserted into said main part, said refractive index n1 being different from said refractive index n3, and wherein Formula (I) with W2 being a half width of said insert and Formula (II), Formula (III) with W1 being a half width of said main part and Formula (IV), with ? being the wavelength of the electromagnetic wave propagating in the dielectric material having refractive index n1.

Abstract: A light ray direction control element includes a first light transmitting substrate, a second light transmitting substrate facing the first light transmitting substrate, a first light transmitting region provided on a first main surface of the first light transmitting substrate, a second light transmitting region provided on a first main surface of the second light transmitting substrate, first light absorbing regions positioned among the first light transmitting region, and second light absorbing regions positioned among the second light transmitting region. The light ray direction control element further includes a light transmitting dispersion medium enclosed in the first light absorbing regions and the second light absorbing regions, and charged electrophoretic particles dispersed in the light transmitting dispersion medium.

Abstract: A curved shell, configured to receive a projection light beam provided by a projection device, and including a curved main body, a microstructure layer and multiple light-resistant layers is provided. The curved main body has an inner surface and an outer surface opposite to each other, and the outer surface has different curvatures. The microstructure layer is disposed on the outer surface and includes multiple first inclined surfaces and multiple second inclined surfaces distributed in alternation, and any two adjacent ones of the first inclined surfaces and the second inclined surfaces have an included angle. The light-resistant layers are disposed on the first inclined surfaces, wherein the light-resistant layers reflect or absorb ambient light beams from the outside of the curved main body, and the inner surface receives the projection light beam, and the projection light beam passes through the second inclined surfaces to form a projection image.

Abstract: A method for producing a camera module. An objective is aligned with respect to an image sensor and is then fixed in position by being joined to a support that receives the image sensor, a housing that surrounds the image sensor, or an interposed connection structure as a joining partner. The objective is mounted on spacer elements, which are initially still movable, and is then aligned with respect to the image sensor by moving the spacer elements. After the objective is aligned, the spacer elements are welded to the objective and the joining partner. A camera module is also described.

Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with positive refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens, a fifth lens with positive refractive power, a sixth lens with positive or negative refractive power, and a seventh lens with negative refractive power, wherein said first lens is formed in a meniscus shape having an object-side surface being convex in a paraxial region, said second lens has an image-side surface being concave in a paraxial region, said sixth lens has an image-side surface being concave in a paraxial region, and said seventh lens has an image-side surface being concave in a paraxial region, and predetermined conditional expressions are satisfied.