77results about How to "Reduce light interference" patented technology

A LCD device includes first and second LCD panels stacked one on another. Each of the first and second LCD panels includes a pair of transparent substrates, a liquid crystal layer sandwiched therebetween, and a pair of polarizing films sandwiching therebetween the pair of transparent substrates. A light diffusion layer having light diffusion function is interposed between the first LCD panel and the second LCD panel. The light diffusion layer reduces the intensity of the light passed by the first LCD panel, thereby alleviating the periodicity of the arrangement of dark areas and bright areas to alleviate the moire caused by light interference.

An image reading device and an image forming apparatus having the same that can increase a scan quality by improving mounting positions of units to read information recorded on a document and a mounting structure of a light shielding member. The image reading device may include a first reading unit to read image information recorded on a first surface of a document, a second reading unit disposed at a predetermined distance from the first reading unit along a document feeding direction to read image information recorded on a second surface of the document, and at least one light shielding member mounted between the first reading unit and the second reading unit along the document feeding direction. The light shielding member may extend in a direction different from the document feeding direction such that one end portion is located in a document feeding path. The light shielding member may be provided with a document guide portion to guide the document.

A system and associated methodology allow for monitoring ocular parameters of a patient. Parameters that may be monitored in this regard include ocular perfusion, retinal oxygen saturation and ocular pressure. In one implementation, a device for monitoring the desired parameters includes a contact lens with fiber optic pathways mounted thereon. Light of multiple wavelengths can be transmitted into the patient's eyes via input optical pathways. Output optical pathways are associated with a camera for obtaining images of an area of interest within the patient's eyes. The images can be processed to obtain information regarding ocular perfusion and/or oxygen saturation. Changes in this regard can be used to identify a condition of interest.

The invention relates to the field of an optical film for a backlight module, in particular to an optical composite film and a preparation method thereof. In order to solve the problem that an existing composite film cannot realize luminance gain, covering performance and interference relieving at the same time, the invention provides the optical composite film and the preparation method thereof.The optical composite film comprises a first layer of optical film and a second layer of optical film, wherein the first layer of optical film is arranged above the second layer of optical film; the first layer of optical film and the second layer of optical film are bonded together through an attaching layer; the first layer of optical film sequentially comprises a micro lens structure layer anda first layer of substrate layer; and the second layer of optical film sequentially comprises a prism layer, a second layer of substrate layer and a back coating layer. The optical composite film provided by the invention has the advantages that the luminance gain effect can be improved; a good covering effect is achieved; and meanwhile, excellent interference relieving performance is realized. Byusing the preparation method of a micro lens film provided by the invention, the production cost of the micro lens structure is greatly reduced.

The invention relates to a double-substrate active layer structure with a polysilicon layer and a microcrystal silicon layer, a method and a device thereof. The double-substrate active layer structure with the polysilicon layer and the microcrystal silicon layer comprises a base plate; the microcrystal silicon layer which is formed in a display area above the base plate and used as the active layer of a plurality of thin film transistors in the display area; and the polysilicon layer which is formed in a driving circuit area above the base plate and used as the active layer of a plurality of thin film transistors in the driving circuit area, wherein the grain size of the microcrystal silicon layer is less than that of the polysilicon layer. The light-emitting uniformity of an organic light-emitting diode can be improved by applying the invention.

A main controller controls carry in operations and carry out operations of articles to or from an article storage rack using article transport devices by causing a control command to be transmitted from a first optical communication device that is associated with each article transport device to a second optical communication device provided to each article transport device. The main controller is configured to perform a temporally-divided light-emission control in which a plurality of the first optical communication devices are caused to emit light in a temporally divided manner such that there is only one first optical communication device that emits light in any one time period among the first optical communication devices that are located close to one another in the vertical direction.

The invention discloses a lens and an anti-glare LED (light-emitting diode) lamp. A top surface of the lens is an emergent light surface, a side surface of the lens is a total reflection surface or reflection surface, the bottom of the lens is provided with a sunken groove, the sunken groove is provided with an incidence side surface and an incidence top surface which allow light to enter the lens, and an extinction insert is fixed on the incidence top surface of the sunken groove; the anti-glare LED lamp comprises an LED light source and the lens, and the LED light source is located at the center of the opening of the sunken groove. Since the extinction insert is fixed in the sunken groove of the lens, compared with a conventional optical system without an extinction insert, the lens remarkably improves the edge glare of the ineffective area, and meanwhile, the change of the light intensity of the central effective area is tiny. The solution has the advantages of simple and compact structure, wide application range, high universality, low cost, easiness in control, wide anti-glare range and the like.

The invention provides a lighting device. The lighting device comprises a lamp holder and a lamp body, wherein the lamp body comprises a lamp body component and a lens mounted at the top of the lamp body component; infrared lamp beads, a camera and a photosensitive sensor are arranged on the lamp body component; and the thickness of a first zone, right opposite to the photosensitive sensor, on the lens is smaller than the thicknesses of other zones on the lens. According to the lighting device provided by the invention, an independent lens does not require to be arranged for the photosensitive sensor, so that the optical interference of the lamp body to the photosensitive sensor can be reduced, the production cost is reduced, and the waterproofness of the lighting device is guaranteed due to the integrity of the lens.

A laser device includes a transmitter that emits a light, a first reflector that pivotally reflects the light by a shaft, a light receiver provided apart from the transmitter in a first direction parallel to the shaft, a guide part that receives the light from the first reflector and changes a direction of the light in the first direction, and a second reflector that reflects a returning light from an object and pivots in sync with the first reflector.

The invention discloses an ultrathin glass layer and a preparation method thereof and a cover plate. The preparation method of the ultrathin glass layer comprises the following steps: spraying a frosting liquid on the surface of at least one side of an ultrathin glass layer to form a surface concave-convex structure; cleaning the surface of the ultrathin glass layer by using hydrofluoric acid; and carrying out chemical polishing treatment on the surface of the ultrathin glass layer. Compared with an existing ultrathin glass layer and a preparation method thereof and a cover plate, the ultrathin glass layer has the advantages that the surface concave-convex structure is arranged on the surface of at least one side of the ultra-thin glass layer, so that the contact area between the ultra-thin glass layer and an adjacent film layer is increased, the bending performance of the cover plate is improved, and layering of the inner film layer of the cover plate is avoided; and the concave-convex structure is favorable for reducing ambient light interference, increasing diffuse reflection and improving the outdoor display performance of the display device.

A vehicle system includes multiple vehicles which shuttle on linear paths; a reflecting member provided on one end-side of each path; a range finding device measuring, using a laser beam, a distance between a vehicle and the reflecting member; and a communications system including a stationary communications device provided on an other end-side of the traveling path for the traveling vehicle, and performing optical wireless communication; and a mobile communications device attached to the traveling vehicle performing wireless communication with the stationary communications device.

The invention discloses a photoelectric baseboard which comprises an electricity guide board and a light guide board. The light guide board comprises a first metal baseboard; a light guiding layer which is formed on the first metal baseboard and consists of a light-wave guide and a covering layer wrapping the light-wave guide; and a metal supporting structure which is formed on the surrounding of the light guiding layer. When the electricity guide board is jointed with the light guide board as a pressing board technique, the metal supporting structure can absorb the press being applied by the photoelectric baseboard. The invention combines the light-wave guide and a printing circuit board technique flow so as to lead the light-wave guide to become one layer in the printing circuit board and lead the light-wave guide to transmit light signals, and the invention utilizes the brass as the light guiding layer so as to increase the rigidity of the whole photoelectricity baseboard, prevent the distortion or damage caused by the high temperature and high pressure domino effects to the light-wave guide self during the board pressing technique, can form much better reflection surface, increase light-coupling efficiency and reduce the transmitting lost of the common light-wave guide and the light disturbing phenomena among multi-channel light-wave guide.

An LED lighting unit having a circuit board on which a plurality of LED elements are mounted and a light transmitting housing in which the circuit board is accommodated. The LED lighting unit includes a light screen cover formed so as to cover an outer surface of the light transmitting housing and having light output opening parts formed on walls of the light screen cover respectively opposed to the plurality of LED elements and a light screen member which screens in an inner part of walls of the transmitting housing lights guided in the walls of the transmitting housing so that the lights emitted respectively from the plurality of LED elements are guided in the walls of the transmitting housing and do not interfere with each other.

A light splitting module for obtaining spectrums of an object to be tested is disclosed, which sequentially includes a light entrance window, a diffuser and a filter array along a light entrance direction, wherein the filter array is an angle modulated filter array which has multiple subareas and includes multiple filters with different center wavelengths respectively corresponding to the subareas. Also, a dual-mode multiplexing optical device is disclosed, which includes the light splitting module, an illumination module and a light field imaging module, can realize the integration of spectral detection and light field imaging, so it can be applied to material spectral detection, digital image detection and digital focusing for obtaining high-resolution imaging results; and simultaneously, the modules of the device are detachable, so that users can use the device as required.