50 results about "Optical phenomena" patented technology

A touch screen (10) is disclosed comprising a plurality of light emitters (Lo . . . L₁₅) and light detectors (S_o . . . S₁₁) arranged around a periphery thereof. The position, shape and size of objects (16) may be determined by switching the light emitters on one-by-one and detecting shadows (18) caused by the objects. The objects comprise at least a first part with optical properties of IV a first type and a second part with optical properties of a second different type. By determining the optical phenomena caused by the second part, the orientation of the objects may be determined and/or the objects may be recognized or identified.

An apparatus and methods for generating a substantially supercontinuum-free widely-tunable multimilliwatt source of radiation characterized by a narrowband line profile. The apparatus and methods employ nonlinear optical mechanisms in a nonlinear photonic crystal fiber (PCF) by detuning the wavelength of a pump laser to a significant extent relative to the zero-dispersion wavelength (ZDW) of the PCF. Optical phenomena employed for the selective up-conversion in the PCF include, but are not limited to, four-wave mixing and Cherenkov radiation. Tunability is achieved by varying pump wavelength and power and by substituting different types of PCFs characterized by specified dispersion properties.

A coding element such as a codewheel includes first and second surfaces that are configured with respect to each other and with respect to a light beam such that the light beam is reflected at the two surfaces using the optical phenomenon of total internal reflection. The coding element also includes a coding pattern that is aligned in an optical path of the light beam after the light beam has reflected off of both of the surfaces. A coding element with surfaces that reflect a light beam as a result of total internal reflection can be utilized in an encoding system that operates in transmission while the light source and the photodetector array are located on the same side of the coding element.

The invention discloses a resonant optical gyroscope simulation method, comprising steps of 1) initializing a global time signal required by simulation; 2) providing the global time signal in the step 1) to various data signals on a computer simulation platform; 3) setting parameters involved in data signal process in the simulation task; 4) setting a simulation time length of simulation system; 5) starting system simulation to process signals; 6) observing and storing simulation results; 7) analyzing simulation result in the step 6) 8) changing simulation parameters for continuous simulation or simulation realized. The invention uniforms optical process and electrooptical process in resonant optical gyroscope by packaging optical and electric apparatus as modules, which greatly reduces work load of constructing system during simulation and overcomes problem that traditional method can not reproduce various optical phenomena. The optical noise is described by compute language and influence of optical noise in simulation is added, which enhances process of optical noise.

The invention discloses a novel optical transparent adhesive tape gluing system. The system comprises a machine; an upper platform is installed on the machine through a three-dimensional movement mechanism and is connected with a power mechanism driving the upper platform to rotate; a lower platform is arranged below the upper platform and is connected with an elevating mechanism driving the lower platform to move towards or away from the upper platform; the surfaces of the upper platform and the lower platform are respectively provided with an adsorption mechanism. During working, the upper platform turns 180 DEG and automatically aligns with the lower platform; antigravity action is utilized to effectively reduce falling of dust particles and bad granules in process; an air bag is utilized for gluing and compaction, the air bag is inflated and pressed from center to periphery, air overflows from center to periphery, so bubbles are prevented from being glued in a solid optical cement, optical effects in gluing are effectively improved, bad optical phenomena like a variety of halos and Mura (non-uniform brightness) generated in the process of gluing are overcome, other bad influence like point-like foreign matters is reduced, and a high-quality touch screen can be produced.

A variety of toy polariscopes are simpler in design and less costly than precision instruments used in scientific research and stress analysis of materials and structures. The toy polariscopes are designed for a variety of objects that may exhibit photoelastic properties such as glass, plastic, Plexiglas, gel candle material and other gels, and even edible photoelastic objects. They are specially designed for objects of various sizes with a variety of purposes such as objects to enhance learning in a variety of conditions and experiences. Special objects are designed to go with the toy polariscopes such as edible and inedible photoelastic objects, photoelastic candle material, a variety of photoelastic/photoplastic stands capable of a variety of displays in interaction with other designed photoelastic objects capable of a variety of interaction and displays. Other optical phenomena may also be observed.

The present invention relates to a method for the preparation of a miniaturized optical chemical or biochemical sensor device (e.g. bulk optode, etc. for ion sensing), said device comprising a substrate material having a planar surface portion, said planar surface representing a transducer based on an optical phenomenon such as surface plasmon resonance based on evanescent waves, reflection or transmission; said planar surface portion having arranged thereon an multi-analyte array of (bio)chemical sensor dots located at spatially separated predetermined positions of the planar surface, said sensor dots including (i) a polymer matrix, and (ii) one or more (bio)chemical recognition moieties, the method comprising (a) providing a substrate material having a planar surface portion; (b) providing one or more spotting fluid(s); (c) depositing the one or more spotting fluid(s) onto the planar surface portion of the substrate material by means of a pin-printer deposition mechanism (arrayer) and allowing the spotting fluid(s) to consolidate.

The invention relates to a horizontal attitude determination method based on underwater Snell window edge identification. A Snell window is an optical phenomenon during underwater air observation andcomprises space information. According to the method, the center of the Snell window in underwater air-to-air imaging is extracted through an image processing means to obtain the horizontal attitude of a carrier. The method comprises the following steps: firstly, performing noise filtering and binarization processing on an acquired image; introducing a lens model of the camera into a traditional Hough circle transformation algorithm, and extracting a Snell window and a center thereof from the binarized edge image; because the window center vector coincides with the zenith vector under the navigation coordinate system, calculating the horizontal attitude of the carrier finally by utilizing the relationship. According to the method, underwater optical information is fully utilized, full-autonomous horizontal attitude determination is realized, and the method can be used for initial alignment of underwater vehicles and correction of inertial navigation accumulative errors.

The invention relates to an optical educational experiment instrument, in particular to an optical educational experiment instrument which is capable of modular combination and the use method of the instrument. According to the technic proposal provided by the invention, the work table is movably provided with a light source describing the optical phenomenon and an element describing the optical phenomenon, the work table is further provided with a light source describing the optical path and an element describing the optical path corresponding to the descriptive optical phenomenon. The invention is capable of carrying on optical path description and phenomenon demonstration for various kinds of optical phenomena and simple optical system at the same time, through the contrast observation of the optical path demonstration and the corresponding optical phenomenon, the comprehension of the students is deepened and study interest is improved. The cordwood typed function module infinitely expands the possibility of the experiment and can be combined arbitrarily to explore the mystery of the optical world so as to inspire the study enthusiasm and train the experimental ability of the students. The product is integrated into the portable case typed component which is convenient for transportation, carrying, collection and storage.

A variety of toy polariscopes are simpler in design and less costly than precision instruments used in scientific research and stress analysis of materials and structures. The toy polariscopes are designed for a variety of objects that may exhibit photoelastic properties such as glass, plastic, Plexiglas, gel candle material and other gels, and even edible photoelastic objects. They are specially designed for objects of various sizes with a variety of purposes such as objects to enhance learning in a variety of conditions and experiences. Special objects are designed to go with the toy polariscopes such as edible and inedible photoelastic objects, photoelastic candle material, a variety of photoelastic/photoplastic stands capable of a variety of displays in interaction with other designed photoelastic objects capable of a variety of interaction and displays. Other optical phenomena may also be observed.

The invention relates to a GIS apparatus with a discharge observation window and belongs to the technical field of online high-voltage switch monitoring. According to the GIS apparatus, the observation window is designed on the side surface or the top surface of a GIS cavity, and the diameter of the observation window and the angle of inclination of the axis of the window to ground can be determined according to the generatrix length and the angle of inclination of the section of a basin-type insulator cone in the GIS cavity. As the observation window is arranged on the GIS cavity, the position of partial discharge, the arc shape, the defect type and the like can be visually seen, and the problem of failure in visually knowing the optical phenomena in the development process of the GIS partial discharge process is solved; meanwhile, in combination with other partial discharge diagnosis methods, the partial discharge information is diagnosed comprehensively; the methods are complementary to each other for verification to make up for misjudgment possibly caused by one single method.

The invention relates to a decoration film and a terminal end cover. The decoration film comprises a base material, wherein the base material comprises a first surface and a second surface which are opposite to each other, multiple texture structure subblocks which are arranged at intervals are formed on the first surface, a sunken part and a first flat part adjacent to the sunken part are formedon the surface of at least one texture structure subblock, and/or a protrusion part and a second flat part adjacent to the protrusion part are formed on the surface of at least one texture structure subblock, and the extension length of the sunken parts and/or the protrusion parts is within the range of 30-150 micrometers. The decoration film and the terminal end cover have the technical advantages that through the multiple texture structure subblocks which are arranged at intervals, the strength of light change is greatly lowered, and the continuous shadow movement is reduced. The optimal phenomena like optical interference can be reduced, stimulation brought by light change is lowered, the possibility of visibility to the naked eyes can also be reduced, the particulate roughness of the texture structure subblocks is lowered, and moderate shadow movement is comprehensively achieved.

The invention discloses a space three-dimensional demonstration instrument for interference, diffraction, reflection and refraction phenomenon of light. The demonstration instrument comprises a laser source base, a laser pen, an optical phenomenon demonstration element and an optical path three-dimensional demonstration box. The optical path three-dimensional demonstration box comprises a transparent box body. The box body is internally provided with liquid or gaseous transparent colloid. The side portion of the laser pen is provided with a control button. The optical phenomenon demonstration element comprises an interference and diffraction demonstration plate, wherein the interference and diffraction demonstration plate is provided with single seams, double seams, circular holes and a circular screen, of which the width or aperture diameter changes gradually. The advantages of the demonstration instrument are that the structure is reasonably designed, the demonstration instrument is convenient to operate, and the teaching demonstration effect is greatly improved.

The invention discloses a three-dimensional light path experiment demonstration method, which comprises the following steps of: injecting a proper amount of smoke into a transparent box body by using a smoke device, triggering three first laser pens in a vertical plane on a rotating seat, and observing a light convergence phenomenon of a convex lens on the vertical plane in a space based on a Tyndall effect; the speed regulator controls the motor to drive the rotating seat to rotate from slow to fast, and the convergence effect of the light beams from linear convergence to hollow conical light beams is observed; the inclination angle of the support is adjusted, the incidence inclination angle of parallel light sources of the three first laser pens in the vertical plane is changed, a second laser pen arranged on the other side, opposite to the first laser pens, of the transparent box is triggered, and light beams of the second laser pen pass through the main optical axis of the convex lens and are different from the light beams of the first laser pens in color. Therefore, the optical phenomenon that the convergence point deviates from the principal optical axis is observed. According to the invention, the experiment is expanded from plane two-dimensional observation to three-dimensional space and progressive layer by layer, the exploration method is changed from particularity to universality, and the demonstration process is more scientific and complete.

The invention discloses a micro-motion device module, and relates to the technical field of optical module manufacturing. The module comprises a square shell, a round shell, a lens, a lens holder, an elastic sheet, a coil and a magnetic ring. The inner surface of the square shell and the outer surface of the round shell are fixed together. The lens is embedded into the lens holder. The elastic sheet connects the lens holder and the round shell. The coil is fixed on the outer surface of the lens holder. The magnetic ring is fixed on the inner surface of the round shell. According to the micro-motion device module, an optical structure and a mechanical structure are combined together, undesirable exterior and optical phenomena are avoided, the number of production steps and the labor investment are reduced, the production efficiency and the rate of qualified products are improved, and the cost is lowered.