37results about "Optical light guides" patented technology

An apparatus and method for a radiation switching array, including a first radiation wave modulator and a second radiation wave modulator proximate the first modulator, each the modulator having a transport for receiving a wave component, the transport including a waveguide having a guiding region and one or more bounding regions; and a plurality of constituents disposed in the waveguide for enhancing an influencer response in the waveguide; and an influencer, operatively coupled to the transport and responsive to a control signal, for affecting a radiation-amplitude-controlling property of the wave component by inducing the influencer response in the waveguide as the wave component travels through the transport; and a controller, coupled to the modulators, for selectively asserting each the control signal to independently control the amplitude-controlling property of each the modulator. A switching method including (a) receiving a wave component at each of a plurality of transports proximate each other, each transport including a waveguide having a guiding region and one or more bounding regions with a plurality of constituents disposed in the waveguide for enhancing an influencer response in the waveguide; and (b) affecting independently a radiation-amplitude-controlling property of each the wave component as it travels through each the waveguide.

The present application provides a display assembly, a display device, and a driving method thereof, and relates to the technical field of displaying. Light leakage can be overcome. The display assembly comprises a display panel comprising an array substrate and an opposite substrate, the display panel further comprises a display area which comprises a pixel area, a light transmission area, and alight shading area. The side, away from the opposite substrate, of the array substrate is provided with a first light shading pattern which is located in the light shading area and disposed around thelight transmitting area.

Techniques that provide cost effective optical fiber communication links for HDCP transmission systems and the like are provided. A single fiber for bidirectional communication is enabled, without wavelength selective unit to achieve the HDCP transmission. One embodiment of the present invention has a forward channel using a light source (e.g., VCSEL at about 850 nm) in the GHz modulation level (e.g., 1 GHz or greater), and a corresponding photodetector. The backward channel has a light source (e.g., LED at 630 nm) in the MHz modulation level (e.g., 10 MHz or less), and a corresponding photodetector. One application is for realizing a home entertainment system (e.g., DVD player and high definition television) that employs an HDCP-enabled communication link to transmit copy restricted digital content.

A vehicle light unit can convert an LED light source to a linear light emitting state and can be incorporated into a vehicle light. The vehicle light unit can include a first to fourth lens part in front of an LED light source. The first to third lens parts can convert the point light source or the LED light source into a linear light emitting portion with improved light utilization efficiency by providing first to fourth total reflection surfaces utilizing internal reflection to the third lens part. The light rays through the linear light emitting portion can be incident on the fourth lens part. The fourth lens part can include a plate-shaped light guiding portion with a plurality of total reflection surfaces on one surface and corresponding lens cut portions on the other opposite surface.

A display apparatus including a backlight module and a transmissive display panel is provided. The backlight module includes a light guide plate, a patterned light scattering structure, and a light emitting device. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. The patterned light scattering structure is disposed on the light guide plate or inside the light guide plate. The patterned light scattering structure includes a plurality of light scattering strips. The light emitting device is configured to emit an illumination light and the light incident surface is disposed on the path of the illumination light. The light scattering strips are configured to scatter the illumination light. The transmissive display panel is disposed beside the backlight module. The first surface faces the transmissive display panel.

In a laser module (310), single-emitter laser diode chips (110) are positioned at different heights on opposite sides of the module's combined output beam (114). Each laser diode chip (110), and its corresponding fast and slow axis collimators (130, 134), and turning mirror (140) are positioned on a corresponding heat-dissipating surface region (340). High thermal stability and output power are obtained in some embodiments even if the modules are combined to obtain higher-level modules (310-2). Other features and embodiments are also provided.

The invention is an optical fiber Prague grating sensor, characterized in that it is made by the steps of: (1) making optical fiber Prague grating; (2) making D-type section of the optical fiber Prague grating; (3) selecting rectangular ceramic substrate wider than 2cm, making two semicircular grooves at the two ends of the ceramic substrate, respectively, to fix two end points of photosensitive single-mode optical fiber in the ceramic substrate, then making an optical fiber groove to store the D-type optical fiber Prague grating in the center of the ceramic substrate by laser machining technique, where the diameter of the optical fiber groove is somewhat greater than that of the optical fiber; (4) installing the D-type optical fiber Prague grating; and (5) placing the ready-made D-type optical fiber Prague grating in the optical fiber groove and making the Prague grating located in the center of the ceramic substrate and simultaneously under the monitoring of high power microscope, assuring a plane of the D-type optical fiber Prague grating and the top end surface of the ceramic substrate are basically on the same horizontal.

A system, apparatus and method for testing optical fiber systems by providing a near-end and far-end harness that loops the set of fibers in the fiber system together. The near-end harness has an interface to connect to the tester. The tester then effects testing on the entire set of fibers, which are looped together by the configuration of the two harnesses creating a single optical path that traverses the entire set or subset of fibers in the network, so a launched test signal propagates through the entire set of looped fibers, providing measurement results for the fibers.

An optical fiber holder includes a holder main body and cord receiving groove. The holder main body has a fiber receiving groove and a first cord receiving groove. The fiber receiving groove receives and positions a coated optical fiber of an optical fiber cord with a cord jacket removed at the tip of the optical fiber cord. The cord receiving groove receives the cord jacket. A cord holding cover and a fiber pressing cover 13 are attached to the holder main body 6 for movement between respective open closed positions. The cord holder cover includes a second cord receiving groove that cooperates with the first cord receiving groove to form an insertion through hole having a circular cross-section that allows for insertion of the optical fiber. The fiber pressing cover presses the coated optical fiber against the holder main body with the coated optical fiber in the fiber receiving groove.

A liquid crystal display device according to the present invention (100) includes: a liquid crystal panel (200) having a front transparent substrate (210), a rear transparent substrate (220), and a liquid crystal layer (230) provided between the front transparent substrate (210) and the rear transparent substrate (220); a sidelight unit (300) mounted to the liquid crystal panel (200), the sidelight unit (300) including a light source (320) provided on a lateral side of the liquid crystal panel (200) and a light guide plate (330) provided between the liquid crystal panel and the light source; and a frame (310) to which the light source (320) and the light guide plate (330) are mounted.

A light guide plate includes a base plate and a plurality of light deflecting elements. The light deflecting elements are formed on one surface of the base plate and arranged based on two coordinate axis directions of the surface of the base plate. Each row of the light deflecting elements substantially aligned along one coordinate axis direction has a distribution offset toward the other coordinate axis direction.

The embodiments of the present invention provide a light guiding plate, an optical film, a backlight module, an array substrate and a liquid crystal module. A reflective layer and a light collimating layer are formed on one surface of the light guiding plate, the reflective layer is positioned below the light collimating layer and has a plurality of holes. The light from the point light source is collimated by the light collimating layer) to form a parallel lights, so that the lights are incident into the array substrate at the same angle without any lights at other angles. Thus, the same brightness is maintained when viewed from different angles by the users, and the problem of the viewing angle dependency in the TFT-LCD is overcome.

The invention relates to the field of topological photonic crystals and integrated photonic chips, and discloses an optical communication waveband wavelength division multiplexing silicon-based energy valley photonic crystal structure which comprises a silicon substrate which is divided into four areas through three boundaries, wherein first circular air holes and second circular air holes in the four areas are arranged in a triangular lattice staggered mode and form four topological waveguide structures at the boundary, and a second topological waveguide and a fourth topological waveguide located on the two sides respectively adopt air holes with different radiuses. Light waves of the two wave bands enter from the first topological waveguide, one wave band exits from the second topological waveguide, the other wave band exits from the fourth topological waveguide, and the structure can be used for achieving communication optical band wavelength division multiplexing on a micro-nano structure.

The invention aims to provide a decorating body and a decoration display device employing the decorating body, by which thinning can be realized and stereoscopic luminescent patterns can be identified visually, in contrary to the fact that stereoscopic patterns cannot be uniformly displayed previously. The decorating body is characterized by comprising a first light guiding body (1) used for guiding light from a light source (LE1) and a light permeating body (2) arranged on the upper surface side of the first light guiding body (1) and allowing light emitted from the first light guiding body (1) to permeate through. The surface of the first light guiding body (1) is provided with a first pattern (11) which is equipped with multiple first pixels (1g) at stipulated intervals (P1). The surface of the light permeating body (2) is provided with a second pattern (12) which is equipped with multiple second pixels (2g) at stipulated intervals (P2) different from the intervals of the first pattern (11). The first pixels of the first pattern enable the light to scatter, while the second pixels of the second pattern shield the light.

In a method of manufacturing a plastic optical fiber by heating and drawing either one end portion of a transparent plastic rod, a plastic optical fiber having a cross sectional form approximately similar to the cross sectional form of the transparent plastic rod, the transparent plastic rod is heated by exposing near infrared ray which is radiated from a near infrared ray source. This can prevent the plastic optical fiber from causing to blow many bubbles on the surface and heat degradation to allow the plastic optical fiber to be obtained with a high quality.

The invention provides a back frame of a panel display device. The back frame comprises at least two main splicers, wherein the two main splicers are spliced to form a main frame of the back frame; and the two main splicers are spliced by a plurality of disperse splice points. The invention also provides a manufacturing method of the back frame and a backlight system. The back frame, the manufacturing method and the backlight system have the following beneficial effects: the back frame mould has simple structure so that the cost of the back frame mould can be lowered; the materials of the back frame are saved to lower the cost of the panel display device; and pressure can be dispersed while the strength of the splice parts of the back frame is ensured, thus further ensuring the overall strength of the back frame to meet the requirement.

An optical waveguide device is provided. The optical waveguide device includes: a substrate; a first clad layer formed on the substrate; a core layer formed on the first clad layer; and a second clad layer formed on the first clad layer so as to cover the core layer. The second clad layer includes an uncured photosensitive resin covering a first portion of the core layer, and a cured photosensitive resin covering a second portion of the core layer.

The invention discloses a car LENS light guide strip. The light guide strip structure is only provided with two pouring gates, the light guide strip is prepared through an injection molding process, machine equipment is Demag model specification 280T, the material is PC2407, the die cavity number is 1*1, and the product total length is 520 mm. The light guide strip structure is improved, one glue inlet point is omitted, the product is of a two-point glue inlet structure, through process optimization, under the condition of ensuring product normal stability, the product size and weight are controlled, and due to product surface combination lines, the product surface effect is better. Meanwhile, the number of machining procedures is reduced, work efficiency is improved, and the raw material control cost is reduced.

The invention relates to the technical field of optical branching devices, in particular to a plane type waveguide optical branching device which comprises a box. Horizontal manifold blocks are arranged in the box, longitudinal manifold blocks are arranged on the horizontal manifold blocks, the box is mounted in an outer shell, supporting bars are arranged on the inner two sides of outer shell and provided with guide wheel grooves, guide wheel frames are arranged on the two sides of the box, guide wheels are arranged on the guide wheel frames, a handle is arranged on the box, and the number of the longitudinal manifold blocks is consistent with the number of the horizontal manifold blocks. According to the plane type waveguide optical branching device, all branching devices are integrated in the one box in a spliced and cascaded mode, the plane type waveguide optical branching device can be used in an original wiring cabinet, and occupied space is small. Splicing loss is low, the industrial standard is met and exceeded, the product yield is increased by 15% than the prior art, and product long-term reliability is greatly improved.

The invention relates to the technical field of communication, and particularly discloses a wavelength division multiplexing technology-based multiplexer for an optical fiber multiplication system. A multiplexer body is fixedly connected with a lower shell, an upper shell is hinged with the lower shell, two clamping blocks are fixedly connected with the corresponding upper shell and lower shell respectively and are positioned on one side of the corresponding upper shell and lower shell respectively. The lower shell is provided with two first grooves, each first spring is fixedly connected with the lower shell, the two blocking pieces are fixedly connected with the corresponding first springs respectively, the lower shell is further provided with a second groove, the second groove is communicated with the two first grooves, and the limiting assembly is arranged in the second groove. According to the arrangement of the structure, when the upper shell and the lower shell are closed, studs can be omitted, the studs are prevented from sliding, the difficulty of disassembling the upper shell and the lower shell is increased, and meanwhile the upper shell and the lower shell can be opened without tools.