50 results about "Optical phenomena" patented technology

A touch screen (10) is disclosed comprising a plurality of light emitters (Lo . . . L15) and light detectors (So . . . 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 touch screen includes light emitters and light detectors arranged around a periphery thereof. The position, orientation, shape and / or size of objects may be determined by switching the light emitters on one-by-one and detecting shadows caused by the objects. The objects include at least a first part with optical properties of 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.

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.

Methods for measuring a property of a sample material present at an interface of an emerging medium in a spectroscopic device include a sensor (10) featuring at least one dielectric member (14) disposed upon a entrant medium (12), with the dielectric member being of an optical thickness selected to produce an observable interference effect for an incident angle of light below the critical angle of total internal reflection at the interface with the dielectric member (14). The dielectric member (14) of the sensor device (10) may be modified and functionalized for binding of a sample analyte by disposing a sensing surface area (38, 40, 42) upon it. Moreover, an metal layer (18) may be added to an entrant medium (20) to produce a sensor (16) that generates observable optical phenomena both above (resonance) and below (interference) a given critical angle.

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.

A method for avoiding an obstacle or an image-quality-degrading optical phenomenon in an image recognition unit is provided. The method includes the steps of providing at least an optical shutter array in the image recognition unit, detecting the obstacle or the optical phenomenon, and closing the optical shutter that corresponds to the portion affected by the obstacle or the optical phenomenon. The method can be readily implemented even when the space for implementing the method is small, for example, in a small space in a camera currently in use, and driving power consumed in the method is small. In an image affected by an obstacle attached to a lens or a protective cover for the lens in an imaging device or an optical phenomenon produced by the lens or the protective cover for the lens in the imaging device, an imaging method and image processing are used to avoid the obstacle or the optical phenomenon produced by the lens or the protective cover for the lens in the imaging device without removing the obstacle or optical phenomenon itself.

The invention relates to the field of physics teaching equipment, and belongs to an optical phenomenon display instrument. The propagation path of light and generated optical phenomena can be displayed clearly. The instrument comprises a rotatable base, and a magnetic disk with length and angle scales. One fourth of the upper half part of the disk can be turned backwards, one side of the lower half part is equipped with a semicircular glass brick, and the other side of the lower half part is equipped with a semicircular water tank which can be filled with different transparent liquids. The instrument further comprises the following attachments: a magnetic lamp holder, a modified electronic laser lamp, an electronic candle, a pinhole imaging plate capable of adjusting the size of a pinhole, a magnetic clamping slot, a plane mirror imaging transparent glass sheet, a single-slit and double-slit diffraction interference lens, a reflection diffraction grating, a polarization glass sheet, a convex lens with a magnetic base, a concave lens, a prism, an optical screen, and the like. All the attachments can be placed on the magnetic disk, and 18 groups of different optical experiments can be completed by choosing different attachments.

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.

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 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 discloses a liquid crystal displayer which comprises a power supply circuit for supplying grid electrode starting voltage signals and a grid electrode driver. The liquid crystal displayer further comprises a corner cut circuit respectively connected with the power supply circuit and the grid electrode driver. The corner cut circuit comprises a corner cut control logic circuit, wherein when corner cut control signals obtained after logical operation of received corner cut voltage signals are changed from a high level to a low level by the corner cut control logic circuit, the grid electrode starting voltage signals begin to discharge and have corner cut waveforms, and the discharging duration of the grid electrode starting voltage signals and slopes of the corner cut waveforms change along with temperature of operation environment of the displayer. The corner cut circuit which can be properly adjusted along with changes of the temperature is additionally arranged, and accordingly signal reduction time caused by grid wiring after the temperature of the operation environment of the liquid crystal displayer rises is reduced, and the problem that wrong optical phenomena of pixels occur after the temperature of the operation environment of the liquid crystal displayer rises can be solved.

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 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 discloses a spectrometer with a movable telescope; the spectrometer comprises a base, a collimator, an objective table and the telescope, and further comprises a telescope supporting rod, a telescope supporting platform, a platform bracket and a slide rail. The slide rail is arranged on the surface of the telescope supporting platform; the upper end of the telescope supporting rod isfixedly connected with the telescope, and the lower end of the telescope supporting rod is arranged on the slide rail and can slide along the slide rail; and the upper end of the platform bracket isconnected with the bottom of the telescope supporting platform, and the lower end of the platform bracket is rotatably connected to the base. With the adoption of the spectrometer provided by the invention, adjustment of the spectrometer and observation of optical phenomena are facilitated; and shortening of the adjustment time of the spectrometer is facilitated and the experimental efficiency isimproved.

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 relates to a method for authenticating and / or checking the integrity of a subject, comprising: - visually superimposing, optically or electronically: - at least one so-called authentication image of at least one authentication region of an authentic subject, the authentication image comprising at least one texture of random composition, - and, also, the authentication region per se of a candidate subject or at least one verification image of the authentication region of the candidate subject, - in the event of observing, on the image resulting from the superimposition, a Glass pattern optical phenomenon in the authentication region, concluding that the candidate subject is the authentic subject and / or the at least partial integrity of the authentication region of the authentic subject.

The invention discloses a multi-lens micro-motion device module, and relates to the technical field of optical module manufacturing. The module comprises a shell, a main lens, an auxiliary lens, a lens holder, a main coil, an auxiliary coil and a magnetic ring. The main lens and the auxiliary lens are embedded into the lens holder. The main coil and the auxiliary coil are fixed on the outer surface of the lens holder. The magnetic ring is fixed on the inner surface of the shell. According to the micro-motion device module, an optical structure and a mechanical structure are combined together. The optical structure employs the two or more lenses, and clear imaging is achieved. The mechanical structure employs the two coils to replace an elastic sheet, and the micro-motion device does not rebound when the optical structure moves during imaging. Undesirable exterior and optical phenomena are avoided during manufacturing of finished products, 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.

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.