126results about How to "Avoid focus" patented technology

A method and system for laser pre-cutting a layered material (31) with a laser beam (14) is disclosed. The layered material (31) comprises at least one tensile stress layer (TSL), at least one compression stress layer (CSL1, CSL2), and at least one interface region (IR1, IR2) between the at least one tensile stress layer (TSL) and the at least one compression stress layer (CSL1, CSL2) and is transparent to allow propagation of the laser beam (14) through the layered material (31). The method may comprise setting an optical beam path (8) and a laser characteristic of the laser beam (14) such that an interaction of the laser beam (14) with the layered material (31) generates an elongate damage region (57) in the layered material (31), and, for each of a series of pre-cut positions (X_N−1, X_N, X_N+1) of the layered material (31), pre-cutting the layered material (31) by positioning the layered material (31) and the laser beam (14) with respect to each other and irradiating the laser beam (14) such that the respective elongate damage regions (57) extend across the at least one interface region (IR1, IR2).

An electronic writeboard for communicating with a computer including applications software and running an active application comprises a touch sensitive panel on which the screen image output of the computer is displayed. The touch sensitive panel is responsive to user contact and generates events. A keyboard window is displayed on the touch sensitive panel and includes a keyboard having a plurality of user selectable keys. A driver receives the events and senses user contact on the touch sensitive panel within the keyboard window and generates messages in response thereto. A controller executing a keyboard application receives the messages. The keyboard application processes the messages to provide data to the active application running on the computer corresponding to keys of the keyboard contacted by the user.

An instrument and method for scanning large microscope specimen on a specimen holder has a scanning optical microscope that is configured to scan the specimen in one of brightfield and fluorescence. The specimen is dynamically tillable about a scan direction during a scan to maintain focus along the length of each scan line as the scan proceeds. A three dimensional image of the specimen can be obtained wherein the specimen tilt and relative focus are maintained from a first image contour to a second image contour through a thickness of a specimen.

An optical pickup includes: a first projector for projecting a first light beam of a first wavelength so as to record and reproduce information with respect to an optical disk having a first light transmissive layer; a second projector for projecting a second light beam of a second wavelength longer than the first wavelength so as to record and reproduce information with respect to an optical disk having a second light transmissive layer; an objective lens common to the first and second light beams; and a diffraction optical element made of a lens with a diffraction grating and a refracting face and disposed in an optical path between the first and second projectors and the objective lens. The diffraction optical element is set to satisfy a predetermined equation. As a result, an optical pickup is realized that uses a single focusing means to focus light beams of different wavelengths, so as to record and reproduce information with respect to different kinds of optical disks (recording media) respectively having light transmissive layers of different thicknesses and respectively using different optimum wavelengths of light for reproducing.

A multilayer recording medium that prevents deterioration of a signal characteristic due to a mirror effect that may occur between recording layers and a method of manufacturing the same, the multilayer recording medium having at least two recording layers, wherein a thickness of at least one spacer layer between adjacent recording layers is different from a thickness of the other spacer layers such that a beam focusing on a recording layer is prevented from focusing on another recording layer corresponding to a mirror layer due to reflection. In the multilayer recording medium, a mirror effect is greatly reduced. In addition, the thickness of only a spacer layer exerting the most significant influence on the mirror effect is changed to prevent the deterioration of signal quality due to the mirror effect, and therefore, the structure of a multilayer recording medium is simplified.

An object tracking device and method and image shooting apparatus are provided. The object tracking device includes a processor and a memory, wherein the processor includes an image preprocessing module; a super-pixel matching module; and a background masking module configured to mask a super-pixel image having a matching area, in order to obtain a super-pixel masked image whose background area outside of the matching area is masked. The present invention is able to eliminate obstacles from a output area by a way of background masking, accurately and stably tracking the object.

An optical apparatus is disclosed which comprises an optical system provided with a zoom lens for performing zooming by moving along the optical axis and a focus lens for performing correction and focusing at the time of zooming, an imaging device for imaging an optical image supplied from the optical system, a zoom actuator for driving the zoom lens, a focus actuator for driving the focus lens, a zoom position detecting device for detecting the position of the zoom lens, a focus position detecting device for detecting the position of the focus lens, an aperture stop member whose opening diameter changes so as to adjust the luminous energy passing through the optical system a filter member to be freely inserted into or extracted from the optical path of the optical system, an aperture stop state detecting device for detecting the opening state of the aperture stop member, a filter state detecting device for detecting the insertion state of the filter member, a memory storing the movement information on the relation between the position of the zoom lens for keeping a focused state and the position of the focus lens, and a control device for correcting the movement information in accordance with an output of the aperture stop state detecting device and an output of the filer state detecting device and controlling driving of the focus lens.

The invention relates to an energy-saving system for fire disaster rescue and daily use of a high rise elevator. The system comprises a remote monitoring platform, a monitoring terminal and a mobile communication terminal; the monitoring terminal comprises a miniature unmanned aerial vehicle and network video cameras; the miniature unmanned aerial vehicle is provided with an airborne camera, flies and cruises in each floor of a high-rise building, carries out video surveillance, and transmits signals to the remote monitoring platform; the network video cameras are arranged on various sites of the high-rise building, carries out video surveillance, and transmits signals to the remote monitoring platform; and the remote monitoring platform is used for receiving the signals, sends commands to an elevator control cabinet after analyzing and processing the signals and controls an elevator car to execute the related commands. According to the system, the defect of elevator rescue in the prior art is overcome, and the elevator can be safely and efficiently used as a main tool for rescue in a fire disaster so that escape personnel can be rescued timely and effectively. During daily use, external energy is used for supplying power to the elevator and monitoring the daily operation of the elevator, and the operation efficiency is improved.

An imaging apparatus with a solid-state imaging device having phase difference detection pixels arranged on a light receiving surface acquires the size of a main subject image by identifying the main subject image picked on the light receiving surface of the solid-state imaging device, sets an AF region subjected to autofocus processing in accordance with an image size, and selects a phase difference AF mode (step S32) or a contrast AF mode (step S31) depending on whether the image size is larger than a required size (step S23) as a mode used for the autofocus processing.

Provided are an imaging device and a focusing control method capable of preventing a focusing error even in a case where still image capturing is consecutively performed to enhance imaging quality. A digital camera performs a correlation operation of two images captured by a pixel pair P1 after performing an imaging process of an N-th frame, and determines a reliability of a correlation operation result based on the result of the correlation operation. In a case where the reliability is low, the digital camera performs a focusing control based on a contrast AF method in each time of imaging subsequent to an (N+1)-th frame, and in a case where the reliability is low, the digital camera performs a focusing control based on a phase difference AF method in an imaging process of the (N+1)-th frame.

An optical scanning unit that includes a first optical device that forms collimated light from light radiated from a light source, a second optical device that focuses the collimated light onto a deflector, and an imaging optical device that focuses light deflected by the deflector onto an exposure object. The optical scanning unit further includes a refraction unit and a diffraction unit, and the power of the refraction unit is φr, the power of the diffraction unit is φd, and the ratio φr/φd is such that 0.5<φr/φd<1.3.

An image capturing apparatus performs rough detection through high-speed focus detection targeting on a face contour portion and then performs focusing through high-precision focus detection targeting on a face-included portion set inside the face contour.

An optical recording medium is capable of preventing a back focus at the face thereof and reducing the interference between beams reflected by each recording surface, thereby improving the quality of a servo signal and a reproductive signal. In a disk having (N-1) layers if N is a natural number (more than three), if a cover-layer thickness and intermediate-layer thicknesses are d1, d2, . . . dN, then a difference of 1 μm or above is set between the sum of di to dj and the sum of dk to dm for arbitrary natural numbers i, j, k, m (i≦j≦k≦m≦N). If the refractive indexes are different from a standard value or different for each layer, the thickness of each layer is converted on the basis of the spread width of light according to the thickness.

A projector includes a projection optical device that magnifies and projects image light and a projection position adjusting device that moves the projection optical device in a plane orthogonal to a projecting direction and adjusts a projection position of the projection optical device. The projection position adjusting device includes a fixed member fixed in the projector, a first moving plate that supports the projection optical device and moves in a first axial direction and a second axial direction orthogonal to each other in the plane orthogonal to the projecting direction, a second moving plate that is interposed between the fixed member and the first moving plate, engages with the first moving plate, and moves in the second axial direction together with the first moving plate, adjusting and driving units that move the first moving plate and the second moving plate, and plural coupling members that movably couple the first moving plate to the fixed member. A coupling through hole of a stepped shape, which has a diameter dimension on a side close to the first moving plate smaller than that on a side separated from the first moving plate and has a step, is formed in the fixed member. Each of the coupling members includes a connecting member that is formed in a stepped shape, which has a sectional area on the other end side smaller than that on the one end side and has steps, and the other end of which is connected to the first moving plate in a state in which the connecting member is inserted in the coupling through hole and an interposed member that is arranged between the step of the connecting member and the step of the coupling through hole, urges the step of the connecting member and the step of the coupling through hole in directions away from each other, and brings the first moving plate into contact with the fixed member.

An electric torch includes a bulb holder, a head and a body. The bulb holder includes a bulb housing and a bulb received in the bulb housing. The bulb includes a first electrically conductive terminal and a second electrically conductive terminal. A recessed portion is formed at the first electrically conductive terminal whereby the first electrically conductive terminal is easily bent at the recessed portion. The head includes a head housing which includes a first thread segment at the upper outside surface thereof and a thread segment at the lower inside surface thereof, a reflector housing fixed to the upper portion of the bulb housing and abuttingly received in the head housing, and a head cover. The reflector housing has an arcuate reflecting concave at the upper inside thereof. A through hole is defined in the center of the reflecting concave for extension of the bulb. An inner thread segment is formed at the upper portion of the head cover for engaging with the first thread segment of the head housing. The body has a base comprising an outer thread segment at the upper portion thereof for engaging with the thread segment of the head housing. An upper receiving chamber is defined in the upper portion of the base. A conductive member is received in the bottom of the upper receiving chamber for electrically connecting with a battery in the base.