Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and air gaps between the five lens elements along the optical axis satisfying the relation 4.11?f/(AG12+AG45)?17.06, where f is the effective focal length of the optical imaging lens, AG12 is the air gap between the first and second lens element along the optical axis, and AG45 is the air gap between the fourth and fifth lens element along the optical axis. The optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: A plan apochromat corrected microscope objective including multiple subsystems with optical components and/or component groups, wherein an optical component or a component group can move axially in the interior of the microscope objective. The axially movable component or the component group includes a concave-convex lens or lens group oriented toward the object plane, with a form factor of: X = c 1 + c 2 c 1 - c 2 wherein X is the form factor, c1 is the curvature of the surface oriented in the direction of the object plane, and c2 is the curvature of the surface oriented in the direction of the image plane, of the axially movable lens or lens group, X lying within a range from ?8<X<?1.

Abstract: Complex spectral and angular diffractive optical elements in photosensitive materials based on Moiré pattern are proposed and demonstrated. The process is based on the recording of multiple volume Bragg gratings with controlled difference of the periods in the same volume of photosensitive material. Filters with ultra-narrow bandpass in the range of a few picometers to a few tens of picometers or apodized diffractive optical elements across large aperture are demonstrated. Several methods to fabricating such Moiré Bragg gratings are proposed. Experimental demonstration of a Moiré ultra-narrowband diffractive optical element in PTR glass is performed.

Abstract: Laser or narrow band light sources are utilized to from left (R1, G1, B1) and right (R2,G2;B2,) images of a 3D projection. Under off-axis viewing of projections (i.e. oblique incident angles) the passbands of the viewing filters in the glasses are blue-shifted, which has the potential of cause crosstalk and/or loss of energy/brightness in any channel or color. This blue-shift is compensated via the combined use of any of viewing passbands (220) encompassing the associated projected lightband (222) and a red-shift passband (224) selection of passband wavelengths that maximize usability of the passband as it “shifts” due to varying or increasing angles of off-axis viewing), curvature of viewing filters, and guard bands between light bands of adjacent channels. Implemented with any number of light sources, additional light sources are utilized to affect a desirable increase in color gamut.

Abstract: A linkage structure for rim and spectacle lenses and spectacles, comprising a rim and two spectacle lenses. The rim comprises left and right half rims. Characteristics: there is a holding groove inside the outer ends of two half rims respectively, connected to a turning block rotatablely. There is a bulge on the outer ends of two spectacle lenses respectively. The bulge is held in the holding groove of half rim. The turning block is turned, one end supports the bulge of spectacle lens, the bulge of spectacle lens is confined in the holding groove of half rim, and it is turned reversely to release one end from the spectacle lens. There is an elastic piece between the turning block and outer end of half rim. The elastic piece applies elastic pretightening force to limit the contrarotation of turning block.

Abstract: Micro-electro-mechanical system (MEMS) mirror devices and manufacturing methods thereof. The device comprising a hinge layer having orthogonal tilt and roll hinges connecting inner and outer platforms such that the inner platform has bi-directional rotation. An electrode layer connected beneath the hinge layer controls rotation of the platforms. A mirror layer above the hinge layer comprises a mirror connected to the inner platform via a pedestal and fixed membrane connected to the hinge layer but detached from the mirror. An anchor temporarily reduces movement of the outer platform during fabrication. In a fabrication state, the anchor anchors the outer platform to the mirror layer's fixed membrane. In a post-fabrication state, a gap releases the outer platform.

Abstract: A deformable mirror includes a mirror substrate having a continuous reflective surface and a plurality of actuators connected to the mirror substrate at a plurality of coupling portions. In the deformable mirror, the mirror substrate has first regions and a second region thicker than the first regions and the first regions are formed around the coupling portions.

Abstract: A system is disclosed including a mountable component configured with an attachment to allow the mountable component to be readily attached to and removed from an independent wearable garment, a positioning slide connected to the mountable component, a display mount connected to the positioning slide, a lens adjustment arm attached to the positioning slide, and a curved lens surface connected to the lens adjustment arm. The positioning slide is configured to move the lens and display mount in a back and forth direction and a left to right direction. Another system and method are also disclosed.

Abstract: A light diffusion reflecting plate having a high degree of whiteness and excellent light diffusion properties and antiglare properties includes a substrate having thereon at least a ground coat layer and a top coat layer in contact with this ground coat layer. The ground coat layer is a white coating film layer. The top coat layer contains a white pigment from 2 to 15% by mass and two kinds of spherical particles, i.e., (A) a spherical particle having an average particle size of from 5 to 30 ?m and (B) a spherical particle having an average particle size of from 15 to 45 ?m, each of which is contained in an amount of from 5 to 17% by mass. A difference in the average particle size between the spherical particle (A) and the spherical particle (B) is 10 ?m or more.

Abstract: A polarizer is disclosed and it is used in combination with a reflection layer. The polarizer comprises a polarizing layer (702) and a compensation layer (704). The compensation layer (704) is disposed between the polarizing layer (702) and the reflection layer. Accordingly, a display device comprising the polarizer is also disclosed. The polarizer solves the problem of oblique light leakage of OLED displays.

Abstract: An optical image capturing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

Abstract: The present disclosure describes a variety of stereopter devices for testing depth perception using a plurality of three dimensional test sets which lack rotational symmetry around a bisecting horizontal plane. By means of the present stereopter device the plurality of test sets are presented against a uniformly lit and standardized background in each of two orientations to a test subject by rotation of a handle affixed to a housing which carries the test sets on planes orthogonal to a plane perpendicular to the axis of rotation. Following presentation of test sets in one orientation, the device is inverted for presentation of the test sets in the other orientation.

Abstract: An illuminator includes a short wave infrared (SWIR) laser, a lens collimator, a first beam shaping diffuser, a second beam shaping diffuser, and a bandpass filter. The lens collimator is optically coupled to the laser for diverging a beam emitted by the laser. The first beam shaping diffuser is optically coupled to the lens collimator to diffuse a diverged beam produced by the lens collimator. The second beam shaping diffuser is optically coupled to the first beam shaping diffuser to further diffuse a diffused beam produced by the first beam shaping diffuser. The bandpass filter is optically connected to the second beam shaping diffuser configured to filter the emissions of a further diffused beam produced by the second beam shaping diffuser.

Abstract: Attractive eyeglasses and novelty shades are provided that are fun and entertaining and can be worn at sporting events, pep rallies, amusement parks, popular concerts, car races, parties, with costumes, and at other places. The improved eyeglasses and novelty shades can comprise an eye glass assembly with a novelty connected to an eyeglass frame. Desirably, the novelty comprises a headband or a part of at least one imitation vehicle. The headband can comprise a unitary one-piece headband or an interlocking multiple piece headband. The headband can further comprises a decorative portion, such as an imitation crown, tiara, coronet, or wreath. Preferably, the attractive imitation vehicle has at least one wheel well which is positioned about one of the earpieces of the eyeglass frame.

Abstract: A viewer includes a multifocal lens capable of setting one of a plurality of focal lengths. When a measuring section detects a change in gazing point distance, a selection section selects a focal length to be set among the plurality of focal lengths, and a determiner determines a time duration before a focal length of the multifocal lens is changed. A controller changes the focal length of the multifocal lens when a detector detects a blink or saccadic eye movement of the user before the determined time duration elapses.

Abstract: A display apparatus is provided. The display apparatus includes a display panel comprising a plurality of pixels including a plurality of sub-pixels, and arranges and displays a multi-view image in an arrangement pattern. The display panel includes a polarizing film disposed on a back surface of the display panel and which transmits, to the display panel, light having a first polarization direction to an area corresponding to a first part of each of the sub-pixels, and light having a second polarization direction to an area corresponding to a second part of the sub-pixels. a polarizing panel disposed on a back surface of the polarizing film and configured to adjusts the first and second polarization directions of the light transmitted by the polarizing film, and a controller configured to control a driving state of the polarizing panel to sequentially provide the first and second polarization directions for one image frame section.

Abstract: The present disclosure discloses three-dimensional glasses and a three-dimensional display system, which provide a wearer with a better three-dimensional visual effect and reduce dizziness and fatigue of the wearer. The three-dimensional glasses include a frame including two lens frames, each lens frame having an engagement part; two lenses rotationally assembled in the engagement parts of the two lens frames, respectively; and at least one counterweight member fixed to a periphery of each of the lenses and rotating the lens to an equilibrium position. When the two lenses are at the equilibrium positions, a transmission axis of one of the two lenses is parallel to a polarization axis of a left eye image of a three-dimensional display apparatus and a transmission axis of the other one of the two lenses is parallel to a polarization axis of a right eye image of the three-dimensional display apparatus.

Abstract: An optical filter device includes an interference filter and a housing. The interference filter includes a fixed substrate, a movable substrate joined to the fixed substrate, a fixed reflective film provided on the fixed substrate, and a movable reflective film provided on the movable substrate and opposed to the fixed reflective film across an inter-reflective film gap. The housing includes a base substrate on which the interference filter is arranged. A fixing member is arranged between the movable substrate and the base substrate. The movable substrate is fixed to the base substrate by the fixing member in one place excluding a region where the movable reflective film is provided.

Abstract: An apparatus for producing a hologram includes a collimation lens configured to receive incoherent light emitted from an object; a spatial light modulator (SLM) that includes at least one diffractive lens which is configured to receive the incoherent light from the collimation lens and split the incoherent light into two beams that interfere with each other; and a camera configured to record the interference pattern of the two beams to create a hologram, wherein a ratio between a distance from the SLM to the camera and a focal length of the diffractive lens is greater than 1.

Abstract: A manufacturing method of a Blazed diffraction grating configured to diffract incident light and made of a CdTe or CdZnTe crystal material includes the step of forming a plurality of grating grooves in a processed surface of a work through machining using a processing machine for the Blazed diffraction grating. The forming step forms the grating grooves so that among surfaces of gratings formed by the forming step, a surface that receives the incident light most is set to a (110) plane as a crystal orientation of the crystal material.