Abstract: A display device includes a display panel and a brightness enhancement panel. The display panel has a light output surface. The brightness enhancement panel is mounted on the light output surface. The brightness enhancement panel includes a base plate portion and a plurality of quadrilateral pyramid lens portions. Each of the lens portions defines a square base and four substantially identical triangular sides. The base plate portion has two opposite sides. One of the two sides of the base plate portion abuts the light output surface and the lens portions are arranged at the other side of the base plate portion.

Abstract: An optical plate includes a light output surface and a bottom surface opposite to the light output surface. The light output surface defines a plurality of triangular pyramidal depressions and a plurality of four-sided pyramidal depressions. Each four-sided pyramidal depression is surrounded by four triangular pyramidal depressions.

Abstract: An optical plate includes a first surface, a second surface opposite to the first surface, a plurality of substantially parallel arc-shaped depressions defined in the first surface and a plurality of elongated arc-shaped protrusions and elongated V-shaped protrusions protruding out from the second surface. The elongated arc-shaped protrusions and the elongated V-shaped protrusions are substantially parallel to the arc-shaped depressions and arranged in an alternating manner. A backlight module using the optical plate is also provided.

Abstract: An optical element for homogenizing and, possibly, concentrating the output from high-power two-dimensional semiconductor laser arrays, which has the basic shape of a convex-flat cylindrical lens with a facet cut into the convex surface for each individual semiconductor laser bar.

Abstract: Disclosed is a method for manufacturing an optical component in three dimensions. In one aspect, the method includes providing a substrate that includes contiguous rigid plates that are disposed such that a major surface of each rigid plate lies substantially in a single plane. At least one of said surfaces is characterized by a micro-optical structure. Further in the method, the substrate is folded such that the at least one surface having a micro-optical structure and at least one other of the above-recited surfaces are disposed at an angle to one another. A second method is also disclosed. Disclosed structures made by the method(s) include a mesa structure with a top plate and four sidewall plates, each facing a reflective plate, as well as closed structures such as cubes and rectilinear boxes into which separate plates may be disposed. A mold for preferentially making the substrate such as by injection molding is also detailed.

Abstract: Apparatus is disclosed for optically steering an optical beam, the apparatus comprising a pair of optical prism components arranged together with a diffraction grating so as to allow efficient coupling of an array of spectrally and spatially offset laser diodes to a common optical fiber. A method of optically steering at least one of a series of optical beams is disclosed, the method comprising providing a pair of optical prism components comprising a thermo-optic material; actuating at least one of the components so as to steer at least one of the series of optical beams received from an array of spatially and spectrally offset lasers.

Abstract: Various embodiments and methods relating to groups of anamorphic prisms that are configured to reduce smile in a multi-beam optical system are disclosed.

Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit are provided. The optical sheet includes a base film including a first surface and a second surface opposite the first surface and a plurality of projections on the base film. A first thickness between the first surface and the second surface is different from a second thickness between the first surface and the second surface.

Abstract: An optical substrate having a structured surface that enhances brightness and reduces moiré effect. The optical substrate has a three-dimensionally varying, structured light output surface that comprises an irregular prismatic structure. The irregular prismatic structure may be viewed as comprising longitudinal prism blocks or rows thereof, arranged laterally defining peaks and valleys. Adjacent peaks, adjacent valleys, and/or adjacent peak and valley may be parallel or non-parallel, in an orderly, semi-orderly, random, or quasi-random manner. The lateral adjacent peaks, adjacent valleys, and/or adjacent peak and valley are not parallel. The adjacent irregular prism blocks may be irregular longitudinal sections having the same length, or random or quasi-random irregular sections having different lengths. The facets of each prism block may be flat, or curved (convexly and/or concavely).

Abstract: A light guide plate includes a main body having opposing side faces, and front and rear faces connected to the opposing side faces, the front face being adapted to output light incident on at least one of the side faces, a plurality of front prisms disposed at the front face of the main body, and a plurality of dot prisms disposed in an array at the rear face of the main body, the dot prisms being spaced apart from each other, each of the dot prisms including prism parts, sizes of the dot prisms increasing as a distance from the at least one side face increases.

Abstract: An exemplary prism sheet includes a transparent main body. The transparent main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface of transparent main body defines a plurality of spherical depressions. The second surface defines a plurality of rectangular structures. Each rectangular structure defines four adjacent triangular pyramid depressions.

Abstract: An exemplary prism sheet includes a first surface and a second surface opposite the first surface. The first surface defines a plurality of elongated V-shaped grooves, and the elongated V-shaped grooves are parallel to each other. The second surface defines a plurality of parallelogram microstructures. Each parallelogram microstructure defines four adjacent triangular pyramid depressions.

Abstract: An exemplary prism sheet includes a transparent main body. The transparent main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface of transparent main body defines a plurality of first elongated arc-shaped grooves and a plurality of second elongated arc-shaped grooves. The first elongated arc-shaped grooves intersect with the second elongated arc-shaped grooves. The second surface defining a plurality of rectangular structures. Each rectangular structure defining four adjacent triangular pyramid depressions.

Abstract: The present invention provides a projection display system and a prism set and manufacturing method thereof. The method for manufacturing the prism set includes the steps of providing a first prism, a second prism, a third prism and a fourth prism, wherein the length of the first prism is greater than that of the second prism, and the lengths of the third prism and the fourth prism are greater than that of the first prism, and assembling the first prism, the second prism, the third prism and the fourth prism together to form a prism assembly.

Abstract: An exemplary prism sheet includes a main body having a surface. The surface defines a plurality of first V-shaped micro-protrusions and second V-shaped micro-protrusions thereon. Each of the first V-shaped micro-protrusions extends along a first curved direction. Each of the second V-shaped micro-protrusions extends along a second curved direction. The first V-shaped micro-protrusions intersect with the second V-shaped micro-protrusions. The present prism sheet and the liquid crystal display device using the same can efficiently decrease moire pattern interference between the prism sheet and the pixel pitch of LCD panel.

Abstract: An imaging system for an optical engine of projection apparatus comprises a body, a prism device, a digital micromirror assembly, a projection lens assembly, and an illumination system. A first slide mechanism disposed between the prism device and the body enables the prism device and the body to move transversely, relative to each other, to form an adjustable distance between the projection lens assembly and the prism device. A second slide mechanism disposed between the digital micromirror assembly and the prism device enables the digital micromirror assembly and the prism device to move transversely, relative to each other, to form an adjustable relative position between an effective optical processing area of the digital micromirror assembly and the bottom of the prism device. Users or technicians may adjust the relative movement between the assemblies conveniently using the springs of a fastening device to fasten the prism device to the body.

Abstract: A beam splitter apparatus comprises a beam splitter and a plurality of prisms disposed about the beam splitter. The beam splitter apparatus is configured to split an incident laser beam into a plurality of beamlets exhibiting substantially equal energy and traversing substantially equal optical path lengths through the beam splitter apparatus.

Abstract: An exemplary prism sheet includes a transparent main body. The transparent main body has a surface. A plurality of first elongated micro-protrusions and second elongated micro-protrusions protrude from the surface of the main body. Each of the first elongated micro-protrusions extends along a first direction. Widths and heights of each of the first elongated micro-protrusions vary along the first direction. Each of the second elongated micro-protrusions extends along a second direction that intersects with the first direction. Widths and heights of each of the second elongated micro-protrusions vary along the second direction. A method for making the prism sheet and a liquid crystal display device using the prism sheet are also provided.

Abstract: An optical link module of the present invention for connecting light beams by deflection and including light-emitting devices arranged in a planar manner; an optical fiber bundle that is an optical waveguide for receiving the light beams from the light-emitting devices, and an optical turn which includes a plurality of aspherical lenses which are disposed between the light-emitting devices and the optical fiber bundle and are formed while corresponding to the number of the light-emitting devices and the number of optical fibers.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface defines a plurality of elongated, arc-shaped depressions. Each elongated, arc-shaped depression has a varying depth forming a first smooth wavy pattern. A plurality of elongated, arc-shaped protrusions protrudes from the second surface. Each elongated, arc-shaped protrusion has a varying height forming a second smooth wavy pattern. A backlight module using the present prism sheet is also provided.

Abstract: An exemplary prism sheet includes a transparent main body. The transparent main body has a surface. A plurality of elongated protrusions protrude from the surface of the main body. Each of the elongated protrusions extends along a first direction. A width and a height of one or more elongated protrusions vary along the first direction. Methods for making the prism sheet are also provided.

Abstract: A prism unit includes a prism having at least one optical surface in its inside, and a prism base disposing the prism, the prism base including at least three seating surfaces that are attached to a surface orthogonal to the optical surface of the prism, a seating surface bonded part that is bonded to the prism by an adhesive. At least the three seating surfaces and the seating surface bonded part are symmetrically arranged on the optical surface of the prism.

Abstract: An optical sheet comprises: a base film; a first primer layer disposed on a surface of the base film; and a projection disposed on the first primer layer, wherein a thickness of the first primer layer ranges from about 5 nm to 300 nm.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface is opposite to the second surface. A plurality of micro-depressions are defined in the first surface. A plurality of elongated arc-shaped protrusions are formed on the second surface. Each micro-depression is defined by four connecting sidewalls. A transverse width of each sidewall of each micro-depression progressively decreases with increasing distance from the second surface. A backlight module using the present prism sheet is also provided.

Abstract: An optical deflector element has a light incoming surface (41) in which light enters and a light outgoing surface (42) located opposite the light incoming surface and from which light exits. In the light incoming surface (41) are arranged elongated prisms (41A) in parallel to each other. Each of the elongated prisms (41A) is formed by a top end flat face (46) located at the top end of the elongated prism and having an inclination angle (b) of 1 to 50 degrees, a first prism face (44) located at one side of the flat face, and a second prism face (45) at the other side. A light source device is formed by combining the optical deflector element, light guide and a primary light source. The light guide has a light incident face in which light emitted from the primary light source enters, and a light emitting face from which guided light exits.

Abstract: An exemplary prism sheet includes a transparent main body. The transparent main body includes a surface and a plurality of spherical micro-depressions integrally formed in the surface. A backlight module using the present prism sheet is also provided.

Abstract: A system for determining wire bonding tool placement for use with a wire bonder and an optical imager is provided. The system includes a prism disposed below the optical imager and the wire bonding tool. The system also includes at least one lens positioned between the prism and a lower portion of the wire bonding tool along a first optical axis. The at least one lens and the prism define an object plane between the at least one lens and the lower portion of the wire bonding tool. The at least one lens is positioned between the prism and the optical imager along a second optical axis. The at least one lens and the prism define an image plane between the at least one lens and the optical imager.

Abstract: An optical film includes a supporting layer and a structured-surface layer having a plurality of prims juxtapositionally formed on the supporting layer, each prim including a lower prism element bonded with the supporting layer and at least one upper prism element integrally superimposed on the lower prism element to increase the prism height in order to pick up sideward refracted light to reduce light loss in order to enhance brightness of the optical film.

Abstract: An optical plate includes a first surface and a second surface opposite to the first surface. A plurality of elongated, arc-shaped depressions is defined in the first surface. A plurality of first elongated, V-shaped protrusions aligned in a first direction and a plurality of second elongated, V-shaped protrusions aligned in a second direction are protruded from the second surface. The first direction and the second direction cooperatively define an angle which is larger than 0 degrees and less than 90 degrees.

Abstract: An image pickup optical system includes, in order from the object side, a front unit having at least one reflecting surface with power that is rotationally asymmetrical, an aperture stop, and a rear unit having at least one reflecting surface with power that is rotationally asymmetrical. In this case, F-numbers in two directions perpendicular to each other on a plane perpendicular to the optical axis are different. Decentration takes place in one of the two directions and the F-number in a direction perpendicular to a decentering direction is smaller than that in the decentering direction. When the F-number in the decentering direction is represented by FNY and the F-number in the direction perpendicular to the decentering direction is represented by FNX, the optical system satisfies the following condition: 1.1<FNY/FNX<2.0.

Abstract: Provided are a two-dimensional planar photonic crystal superprism device and a method of manufacturing the same, in which a manufacturing process is simplified using a nanoimprint lithography technique, and thus price-reduction and mass production are facilitated. The two-dimensional planar photonic crystal superprism device includes: a single-mode input waveguide comprising a straight waveguide having a taper structure and a bending waveguide; a superprism formed on an output end side of the single-mode input waveguide and comprising a slab and a photonic crystal superprism; and a single-mode output waveguide comprising a straight waveguide having a taper structure and a bending waveguide, and formed adjacent to the photonic crystal superprism. Using the two-dimensional planar photonic crystal superprism device, it is possible to facilitate manufacturing of nano-photonic integrated circuits, photonic crystal integrated circuits and nano-photonic systems.

Abstract: An exemplary prism sheet (20) includes a transparent main body. The main body includes a first surface (201), a second surface (202) opposite to the first surface, a plurality of first micro-depressions (203) defined in the first surface, and a plurality of second micro-depressions (204) defined in the second surface. Each of the first micro-depressions is conical frustum-shaped. Each of the first micro-depressions has four inner side surfaces connected to each other. A transverse width of each inner side surface of the first micro-depressions progressively decreases with increasing distance from its bottom surface that are coplanar with one of the first surface of the transparent main body. A backlight module (200) using the present prism sheet is also provided.

Abstract: A projector incorporating a prism and a plurality of light valves for modulating light that passes though the prism, wherein the color splitting-converging prism includes a dichroic coating having multiple layers of high and low index of refraction and ¼ wavelength thickness at each desired angle of incidence for reducing dichroic shift and thereby minimizing light loss.

Abstract: An optical film includes a first film member, a second film member and a connecting member integrally joining the first film member and the second film member. The first film member has a first structured surface and a first opposing surface. The second film member is located below the first film member. The second film member has a second structured surface and a second opposing surface. The second structured surface of the second film member is attached to the first opposing surface of the first film member.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of spherical depressions formed in the first surface, and a plurality of triangular pyramidal depressions and hexagonal pyramidal depressions formed in the second surface. Each of the triangular pyramidal depressions is surrounded by three adjacent hexagonal pyramidal depressions. A backlight module using the present prism sheet is also provided.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface and the second surface define a plurality of first micro-depressions and a plurality of second micro-depressions respectively. Each first micro-depression is defined by four connecting curved inner sidewalls. A transverse width of each curved inner sidewall of each first micro-depression progressively decreases with increasing distance from the first surface. Each second micro-depression is defined by four connecting inner sidewalls. A transverse width of each inner sidewall of each second micro-depression progressively decreases with increasing distance from the second surface. A backlight module using the present prism sheet is also provided.

Abstract: An optical film comprises a light-scattering substrate capable for diffusing light incoming through the substrate, and a prismatic layer having an array of a plurality of prisms and formed on the substrate for concentrating light when outgoing from the prisms, thereby obtaining an optical film for enhancing its brightness and light uniformity simultaneously.

Abstract: Spectrally filtering at least one input beam includes dispersing spectral components of at least one input beam at different respective angles in a spectral plane; changing at least some of the angles of the propagation axes of the dispersed spectral components so that the maximum angular separation among the propagation axes of the spectral components changes; receiving a plurality of the dispersed spectral components incident on a reflective surface at a location at which the central rays of each of the spectral components are incident at different points on the reflective surface; and tilting the reflective surface to select at least one and fewer than all of the received spectral components to be directed to a selected output path.

Abstract: A prism monomer for use in a digital light processing projection device includes a plastic triangular prism having a hypotenuse surface and a glass sheet. The glass sheet has two opposite surfaces. One surface of the glass sheet is attached to the hypotenuse surface of the plastic triangular prism and the other surface of the glass sheet is formed with an anti-reflective coating.

Abstract: An exemplary prism system includes a first prism, a second prism, and a spacer. The first prism includes a first conjunction face and the second prism includes a second conjunction face. The first conjunction face and the second conjunction face are opposite each other. The spacer is disposed between the first conjunction face and the second conjunction face. The spacer is made of transparent material having a refractive index lower than that of the first prism and the second prism. Light entering the first prism can be totally reflected inside the prism system before leaving the second prism.

Abstract: An adjustment is provided, which is used for the ground-based observation telescope, comprising a shell body, wherein the adjustment further comprises a base and an adjusting set provided within the shell body, wherein the adjustment further comprises an adjustor provided at the external side surface of the shell body.

Abstract: An optical film includes a substrate and at least one pyramid-like structure. The pyramid-like structure is disposed on one surface of the substrate and has a base, a first face, a second face and a third face. The first, second and third faces are connected together and disposed along the base.

Abstract: A light source apparatus is provided. The light source apparatus includes: a light-emitting portion; a light-guiding plate having the light-emitting portion disposed at a side surface thereof, light beams being emitted from a top surface of the light-guiding plate; and a light path converting sheet above the light-guiding plate, formed of a prism sheet including cylindrical prisms, a cross-section of which is an isosceles triangle. Each of the prisms includes a light incidence plane that forms a first equilateral constituting an apex angle of the isosceles triangle, a reflection plane that forms a base of the isosceles triangle and a light exit plane that forms a second equilateral constituting the apex angle of the isosceles triangle The prism is disposed such that the light incidence plane is approximately perpendicular to a direction of light beams with highest luminous intensity among the light beams emitted from the top surface of the light-guiding plate.

Abstract: A prismatic joint for an optical swiveling device has a first prism which is mounted such that it can rotate about a first rotation axis and a second prism, which is mounted such that it rotate about a second rotation axis with respect to the first prism. The first rotation axis and the second rotation axis intersect one another at an intersection angle of 45°. The first prism and the second prism have a respective first side surface and a second side surface, as well as a base surface. The first side surface is inclined through the intersection angle with respect to the base surface, and the second side surface is inclined through half the intersection angle with respect to the base surface. A third prism has side surfaces that are inclined symmetrically at the intersection angle with respect to the base surface.

Abstract: An exemplary prism sheet includes a base including an upper surface and a plurality of lenses disposed on the upper surface. The upper surface is a wavy surface. A liquid crystal display device using the prism sheet is also provided.

Abstract: A lens film with small warpage even when a transparent base is thin is provided. Pole prisms made of a hardening resin are arranged along the extending direction on a transparent base made of a flexible material. The transparent base has a depression according to a valley between the pole prisms adjacent to each other. The pole prism has a sloping face extending to an inner wall of the depression. The transparent base is in contact with the valley. A layer not functioning as a prism, that is, a so-called skirt layer does not exist between the transparent base and the pole prisms.

Abstract: A combined prismatic condenser board includes a base having a surface on which a prismatic structure is formed. The prismatic structure includes a plurality of parallel rib-like prisms extending in a longitudinal direction and a plurality of parallel rib-like prisms extending in a lateral direction, which intersect each other. The rib-like prisms have a substantially triangular cross-sectional shape and have ridges that are selectively of different heights. With the rib-like prisms extending in different directions and having ridges of different heights, the combined prismatic condenser board realizes light condensation in the different directions and provides optimum view angles in the different directions.

Abstract: A confocal reflectance microscope system incorporates a dual-wedge laser scanner assembly. The scanner assembly incorporates a pair of rotatably mounted prisms, each prism having an angle selected to deviate a light beam from a light source by a desired angle. Each prism is mounted for rotation at a desired speed of rotation and in a desired direction to scan the light beam over the target. An image is built up from successive reflected signals returned from the target.

Abstract: A light redirecting article for redirecting light toward comprises: a light exit surface with features meeting certain requirements; wherein first and second surfaces of the features are opposed to each other at an angle ? that is in the range from 35 to 55 degrees; wherein the light redirecting article is formed from a material having an index of refraction less than 1.60; and wherein the target angle is from 5 to 25 degrees.

Abstract: A movement preventing structure for a color separation prism prevents or reduces the movement in an optical axis direction of the color separation prism caused by the thermal expansion or contraction of a color separation prism supporting member.