Abstract: The present invention relates to a head assembly for a laser processing system, preferably a fiber laser processing system. An assembly system allows a secure and a slidingly focusing displacement of a focusing lens assembly relative to a beam path in a laser processing system. The assembly system provides easy replacement of desired focusing lens assemblies. Adaptive modifications are operative to provide computerized processor control of the focusing displacement and detection of an installed optical assembly and position thereof.

Abstract: In examples, an electrowetting element comprises an electrode for use in applying a voltage for controlling a configuration of first and second fluids which are immiscible. A surface of the electrode comprises a recess which is located away from a perimeter of the surface and which is formed by a region of the electrode having a reduced thickness.

Abstract: A light deflection element is capable of deflecting incident light so as to follow a position of an observer and suppressing reduction in intensity of light that reaches eyes of the observer regardless of their position. The light deflection element includes: a first optical element configured to deflect incident light; a second optical element configured to change a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a third optical element; and a control section configured to control the voltage applied to the second optical element. At least one of interfaces between the first and second optical elements and the second and third optical elements is an aspheric surface. The aspheric surface has an optical power that compensates enlargement of the emitted light which is caused by refractive index distribution caused when a voltage is applied to the second optical element.

Abstract: The present invention aims to provide an actuator unit. When the actuator unit is assembled in a lens driving device and works, a lens support beginning to move cannot be inclined. A spring component (14) is provided with an inner side retaining part (14a), an outer side retaining part (14b), a plurality of wrist parts (14c), a plurality of inner side connecting parts (14e), a plurality of outer side connecting parts (14f) and spoke parts (14g) for connecting the inner side retaining part (14a) with the outer side retaining part (14b) in a releasable manner, wherein the lens support (17) is supported by the spring components (14), and an electromagnetic driving mechanism (22) is utilized for enabling the lens support (17) to move.

Abstract: Provided are an optical device and a method of controlling propagation directions of light and a surface plasmon using the optical device. The optical device includes a light source, a substrate, and a metal layer that is disposed on the substrate, the metal layer includes at least two slots, and propagation directions of light and a surface plasmon may be controlled by using the light that is polarized in a direction parallel to a direction of a long length of any one of the at least two slots.

Abstract: An angle mirror with image injection has an angle-mirror body, a viewing-in end, a viewing-out end, panels arranged in front of the ends, upper and lower deflection mirrors and a display. The image of the display is visible in the viewing-in end. The angle mirror makes it unnecessary for an observer's eye to refocus during an image-source change, such that he can recognize both represented image information items at the same time. This is achieved by arranging the display in a vertical direction on the angle mirror, configuring the lower deflection mirror as a beam splitter, arranging a first mirror element behind it, and guiding a first beam path of the display via an injection lens arranged on the angle-mirror body and likewise via mirror elements arranged thereon such that the first beam path is superposed at the beam splitter by a second beam path through the viewing-out end.

Abstract: There is provided a lens module, including: a first lens having an extended portion, a second lens in contact with the extended portion to be aligned with the first lens, and a third lens in contact with the extended portion to be aligned with the second lens. In the lens module, the plurality of lenses are easily alignable in terms of optical axes thereof.

Abstract: To produce a display element for an electrowetting display, there is provided a quantity of fluid which is greater than both the first volume of a display chamber and the second volume of a reservoir chamber, but less than the sum of the first volume and second volume. The fluid is divided into first and second partial drops, the first being introduced into the display chamber, the second being introduced into the reservoir chamber. The display and reservoir chambers are brought together so that a first opening in a first intermediate film of the display chamber and a second opening in a second intermediate film of the reservoir chamber at least partly overlap. An electrical field is applied to the display chamber and to the reservoir chamber, thereby uniting the first partial drop and the second partial drop.

Abstract: A lens carrier and an optical module for forming a light curtain associated with monitoring a protective field. The lens carrier includes at least one lens for focusing a radiation beam forming said light curtain and a lens mask having at least one opening for shaping the radiation beam to have a predetermined aperture. The lens carrier is formed by overmolding said lens mask with a transparent material. The optical module has such a lens carrier and a module body for mounting a radiation transmitter/receiver carrier that comprises at least one transmitter and/or receiver for transmitting and/or receiving said radiation.

Abstract: A head-up projection system is disclosed. The head-up projection system comprises a mounting member and a portable projector. The mounting member has a receptacle, and the mounting member is mounted on a roof of a vehicle. The portable projector is detachably installed in the receptacle of the mounting member and configured to connect with a mobile communication and computing device with a navigation function for displaying a navigation information image in the vehicle from the mobile communication and computing device.

Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having positive refractive power; and a third lens having positive refractive power, arranged in the order from an object side to an image plane side. The first lens and the third lens have object-side surfaces and image plane-side surfaces, curvature radii of which are both positive. When the first lens has refractive power P1, the second lens has refractive power P2, the third lens has refractive power P3, the first lens has a focal length f1, and the third lens has a focal length f3, the imaging lens satisfies the following conditional expressions: 5.0<(P1+P3)/P2<8.5 6<f3/f1<30.

Abstract: A method of fabricating a microlens array, the method comprising the steps of: compressing a shape memory polymer substrate with a predetermined load; indenting the shape memory polymer substrate to form an array of micro-indents; immersing the shape memory polymer substrate in a solvent capable of causing stress-enhanced swelling in the shape memory polymer substrate such that the array of micro-indents forms a corresponding array of micro-protrusions on the shape memory polymer substrate due to the stress-enhanced swelling of the micro-indents; and heating the shape memory polymer substrate to form at least one curved surface of the shape memory polymer substrate under the micro-protrusion array.

Abstract: A zoom lens includes in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power. At the time of zooming, distances between the lens units change, and a distance between the first lens unit and the second lens unit at a telephoto end is shorter than a distance between the first lens unit and the second lens unit at a wide angle end, and an aperture stop is disposed on an image side of an image-side surface of the first lens unit, and on an object side of an image-side surface of the second lens unit, and the zoom lens satisfies the conditional expressions.

Abstract: A lens barrel includes: a cam cylinder on which a plurality of cam grooves is formed; a plurality of lens groups that has equal to or more than one lens each; and a plurality of lens-holding frames that integrally holds the lens per lens group, has a cam follower each that engages with each cam groove, and is moved along an optical axis direction along a track of each cam groove, each lens-holding frame having: a lens supporting part; and a cylindrical part, and on an outer circumferential surface of which the cam follower is protrusively provided, wherein an inner circumferential part corresponding to a position of the cam follower in the cylindrical part of each lens-holding frame and a cylindrical part of a lens-holding frame positioned on an image plane side are arranged to always overlap in the optical axis direction.

Abstract: A tunable photonic crystal color filter and a color image display apparatus including the same. A tunable photonic crystal color filter includes a first electrode, a second electrode on the first electrode, and a medium disposed between the first electrode and the second electrode. The medium includes charged nanoparticles having a lattice structure in the medium. The first electrode and the second electrode are formed of a material having a difference between an oxidative over-potential and a reductive over-potential.

Abstract: A projector zoom lens includes a first lens group having a negative refractive power and a second lens group having a positive refractive power. The first lens group includes a first front group having a negative refractive power and a first rear group having a positive refractive power, including a positive meniscus lens with a convex surface on an enlargement side. The second lens group includes a second front group having a positive refractive power, including two continuously arranged positive lenses made from a same glass material and having a same surface profile and a second rear group having a negative refractive power, including a biconcave lens and a biconvex lens, the lenses of the first and second lens groups being arranged in order from an enlargement side to a reduction side.

Abstract: A large-area transmissive type optical image modulator, a method of manufacturing the same, and an optical apparatus including the transmissive type optical image modulator are provided. The large-area transmissive type optical image modulator includes: a base substrate; a first expitaxial layer formed on the base substrate; a second expitaxial layer formed on the first expitaxial layer; a first electrode formed on the first expitaxial layer and spaced apart from the second expitaxial layer; a second electrode formed on the second expitaxial layer; and a transparent substrate covering the second expitaxial layer and the second electrode, wherein the base substrate includes a through hole corresponding to a light emitting area, and the first expitaxial layer may include an n-type or p-type doping material.

Abstract: A beamforming apparatus comprising a number of beam ports NB arranged in a circular array, the circular array having a radius a, an annular shaped lens encircling the number of beam ports NB, the annular shaped lens having an inner radius a, an outer radius b, and an inhomogeneous refractive index n(r), and a number of array ports NA coupled to the outer rim of the annular shaped lens.

Abstract: A thermochromic window, including: a first glass substrate, a transparent conductive film applied to the first glass substrate, a silicone resin layer applied to the conductive film, a second glass substrate, and a power source which supplies power to the conductive film, the silicone resin layer including vanadium oxide (e.g., VO2) nanoparticles which are encapsulated in a silica inclusive (e.g., SiO2) shell.

Abstract: An image-partitioned display device for virtual image is disclosed. The display device comprises an image display unit, a refractive element, and a virtual image generation module. The refractive element is disposed between the image display unit and the virtual image generation module. Firstly, the image display unit generates at least one image, and then the refractive element refracts and partitions the image into a plurality of sub-images. Finally, the virtual image generation module receives lights of the sub-images to generate a large area virtual image or a plurality of enlarged virtual images. A volume of the virtual image generation module is reduced and all kinds of display information are provided by the image-partitioned technology.