286results about How to "Scan accurately" patented technology

A charged particle optical system comprising a beamlet generator for generating a plurality of beamlets of charged particles and an electrostatic deflector for deflecting the beamlets. The electrostatic deflector comprises first and second electrodes adapted for connection to a voltage for generating an electric field between the electrodes for deflection of the beamlets, the electrodes being at least partially freestanding in an active area of the electrostatic deflector. The electrodes define at least one passing window for passage of at least a portion of the beamlets between the electrodes, the passing window having a length in a first direction and a width in a transverse direction. The system is adapted to arrange the beamlets in at least one row and to direct a single row of the beamlets through the passing window of the electrostatic deflector, the beamlets of the row extending in the first direction. A substantial part of the electrostatic deflector extends beyond the passing window in the first direction.

An optical scanning apparatus is disclosed that includes a light source unit having plural main light sources that are two-dimensionally arranged in the main scanning direction and the sub scanning direction, and plural sub light sources that are arranged between rows of the main light sources aligned in the main scanning direction. The optical scanning apparatus also includes an optical system configured to scan light emitted from the light source unit on a scanning object to form an image on the scanning object, and a control apparatus configured to adjust a main scanning direction image position by controlling two of the main light sources that are juxtaposed to each other with respect to the main scanning direction and adjust a sub scanning direction image position by controlling a main light source and a sub light source that are adjacent to each other.

A disclosed optical scanner includes a light source unit and a control unit configured to control the light source unit. Light emitted from the light source unit is scanned to expose a scan object surface and form an image on the scan object surface. The light source unit includes plural light sources arranged at a density equal to N (N being an integer of two or more) times higher than a density of pixels on the scan object surface. The control unit controls the light source unit such that one pixel is formed by at least two of the light sources.

A light beam display employing interlaced light beam scanning comprising a display screen having a vertical and a horizontal dimension, a source of a plurality of light beams and an optical path including a movable reflector having a plurality of reflective facets between the display screen and the light beam source. The movable reflector directs the plural light beams to the display screen via one or more facets of the movable reflector to simultaneously illuminate plural different scan lines of the display which are spaced apart by plural non-illuminated scan lines. An optical mechanical element is provided for vertically shifting the light beams so as to illuminate different scan lines of the display screen.

A scanner performs an initial low resolution scan of an area including an image and, after analyzing the initial scan data to determine the type of the image, a computer sends commands to the scanner to direct the scanner to perform a second scan. The second scan can be limited to the precise area of the image, and can be customized to perform efficient scanning based in the image type (e.g., color vs. black and white, or photo vs. text).

In advance to measuring texture of the workpiece by a surface texture measuring machine (1), a workpiece orientation adjustment stage (10) is manually moved by the surface texture measuring machine (1) in accordance with calculated orientation correction amount of the workpiece, thus adjusting orientation of the workpiece. Since it is only necessary for an operator to operate respective adjustment means until reaching a displayed correction amount, operation thereof can be facilitated and orientation thereof can be highly accurately adjusted without impairing operability.

An optical scanning device for scanning a record carrier (22), the record carrier has an outer face (24) and the optical scanning device comprises a radiation source system (2) arranged to generate a radiation beam; an objective system (20) having an exit face (76) and which is arranged between the radiation source system and the record carrier and provides for evanescent coupling of the radiation across a gap between the exit face of the objective system and the outer face of the record carrier; and a radiation detector arrangement for detecting radiation after interaction with the record carrier. The radiation detector arrangement is arranged to produce a tilt error signals (α, β) representing a tilt misalignment between the exit face of the objective system and the outer face of the record carrier. The radiation detector arrangement is arranged to produce the tilt error signal by detecting information in the radiation which is indicative of a variation in efficiency off the evanescent coupling across the exit face.

An image processing apparatus has a multi-cropping function that automatically crops the scanned images of a plurality of original sheets placed on a platen of an image reading apparatus all at one pass. The desired number of cropped images is input by the user, and the number of cropped images detected when cropping the image of the original sheets placed on the platen, are compared.

The invention pertains to an apparatus and methods of a medical imaging device for obtaining images from the walls of luminal organs or a surgical cavity. The invention is a rigid enclosure that is capable of passage through luminal organs or introduction into surgical cavities, and obtains images by rapidly scanning a focused light beam on the tissue to be imaged and receiving light from the tissue. The invention has at least one beam scanning mechanism and has multiple embodiments of scanning and focusing optics at different regimes of numerical aperture. The invention also describes methods for correcting inaccurate beam scanning. The device is capable of performing imaging, image guided therapy, tissue excision, or other interventional procedures.

A light scanning device including: a light source that supplies light in the form of a beam; a reflection mirror that reflects the light beam from the light source; and a movable member that is provided integrally with the reflection mirror and displaces the light beam reflected from the reflection mirror so as to be scanned in a first direction and in a second direction substantially orthogonal to the first direction, the movable member being displaced so that a frequency to scan the light beam in the first direction is higher than the frequency to scan the light beam in the second direction, the reflection mirror being displaced not only in association with the movable member but also for allowing the light beam to be scanned in a direction different from the first direction and correcting the position of the light beam to be scanned in accordance with displacement of the movable member.

A method and apparatus for aligning, stabilizing and registering two or more structures in one or more dimensional space with picometer-scale precision. Low noise laser light is scattered by at least one or more structure or fiducial marks. One mark may be coupled to each structure to be positioned. The light which has been scattered off the fiducial marks is collected in a photo-sensitive device which enables real-time high-bandwidth position sensing of each structure. One or more of the structures should be mounted on a stage, and the stage can move in either one or more dimensions. The photo-sensitive device generates signals in response to the scattered light received, and the signals are used to modulate the position of the stage in a feedback loop.

Methods and apparatus for enabling a stage apparatus to scan an object within a vacuum environment associated with an extreme ultraviolet lithography system are disclosed. According to one aspect of the present invention, a stage apparatus that is suitable for operation in a vacuum environment includes a coarse stage assembly that include a coarse stage and at least one air bearing that is vacuum-compatible. The stage apparatus also includes a fine stage assembly which has a fine stage that is arranged substantially adjacent to the coarse stage. The fine stage is arranged to be positioned relative to the coarse stage using electromagnetic energy.

A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, an optical device for causing the beam of light emitted from the light source to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The optical device is comprised of a first optical element and a second optical element, and a third optical element for causing the beam of light deflected by the deflecting element to be imaged into a spot-like shape on a surface to be scanned. The third optical element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the effective portion of the lens.

A frame structure includes three or more supporting members, a scanner support, a scanner cantilever support, and an adjuster. Three or more supporting members are provided vertically from a base portion. The scanner support is provided horizontally between upper portions of the supporting members. The scanner cantilever support extends horizontally from the upper portion of one of the supporting members. The adjuster is attached to a free end of the cantilever support, and includes an inclined slot. The cantilever support includes a protrusion provided in the free end of the scanner cantilever support. The protrusion is engageable with the slot of the adjuster to obliquely raise and lower the adjuster.

The invention discloses a fast book scanner and an operating method thereof. The scanner comprises a base, two supporting plates, a shooting device and a height-adjustable support, wherein the two supporting plates are arranged opposite to each other and are used for supporting books. The supporting plates are located on the upper surface of the base, the edges of the supporting plates are movably connected with the base through pivots, and an included angle for containing a book to be scanned is formed between the supporting plates. The shooting device is provided with double camera lenses, and an included angle is formed between the camera lenses. The scanning area of each camera lens is the surface area of the corresponding supporting plate. When the fast book scanner works, the book is opened and placed at the position of the included angle formed between the supporting plates, and two adjacent pages of the book are located on the two supporting plates. The included angle between the two supporting plates is adjusted to enable the double camera lenses of the shooting device to be aligned with the opened pages of the book respectively, pictures of the pages are taken, and scanning is achieved.

The invention discloses a code scanning light supplementing method. The method comprises the following steps of: when a code scanning instruction is received, starting a camera according to the code scanning instruction, and obtaining the current environmental illumination intensity; judging whether the environmental illumination intensity is smaller than a preset light supplementing intensity ornot; and if the environmental illumination intensity is smaller than the preset light supplementing intensity, adjusting screen brightness of a display screen at one side of the camera to carry out code scanning light supplementing. The invention furthermore discloses a mobile terminal and a computer readable storage medium. During a scanning operation, if the mobile terminal judges that the current illumination condition influences the normal code map scanning and recognition, light supplementing is carried out through a manner of adjusting the display screen brightness, so that the display screen can be taken as an area light source to project relatively uniform and similarly parallel direct light rays, thereby avoiding the condition that scanning cannot be carried out due to light ray reasons, and ensuring that the mobile terminal can correctly scan a complete code map and correctly recognize the code map.

The invention discloses a method and a device for three-dimensionally positioning heads of human bodies and modeling scalp states, and belongs to the field of head state detection. Magnetic field sources and magnetic detectors are arranged at the outer edges of meridian sagittal planes of the heads of the human bodies, the heads of the human bodies are arranged in magnetic fields, and positioningprobes and detection probes can be arranged, so that location information and state information of scalp positions can be determined, the heads of the human bodies can be three-dimensionally positioned and modeled, and the scalp states can be three-dimensionally modeled. The method and the device for three-dimensionally positioning the heads of the human bodies and modeling the scalp states have the advantages that the method and the device are simple in setting, easy and convenient to operate and high in accuracy and comprehensiveness, the scalp position positioning precision and the scalp state observation accuracy can be greatly enhanced, and influence of hair on detection positioning results can be prevented; the heads of the human bodies can be repeatedly positioned, accordingly, thecomprehensiveness, the fineness and the repeatability of scalp and hair data acquisition can be enhanced, and the method and the device have great popularization and application value.

An optical scanning apparatus for scanning a manuscript, and for optically reading information recorded on the manuscript, having: a plurality of semiconductor lasers for emitting laser lights, whose wavelengths are different from each other; a plurality of collimator lenses each corresponding to respective one of the semiconductor lasers, and for converting the laser lights emitted from the corresponding semiconductor lasers into parallel laser lights respectively; a polygon mirror for deflecting each of the parallel laser lights in a main scanning direction in order to scan the manuscript; and an image forming lens for converging each of the deflected laser lights on the manuscript, wherein collimator setting distances between the collimator lenses and the corresponding semiconductor lasers are different from each other in accordance with differences between the wavelengths of the laser lights.

The disclosed technology brings histopathology into the operating theatre, to enable real-time intra-operative digital pathology. The disclosed technology utilizes confocal imaging devices image, in the operating theatre, “optical slices” of fresh tissue—without the need to physically slice and otherwise process the resected tissue as required by frozen section analysis (FSA). The disclosed technology, in certain embodiments, includes a simple, operating-table-side digital histology scanner, with the capability of rapidly scanning all outer margins of a tissue sample (e.g., resection lump, removed tissue mass). Using point-scanning microscopy technology, the disclosed technology, in certain embodiments, precisely scans a thin “optical section” of the resected tissue, and sends the digital image to a pathologist rather than the real tissue, thereby providing the pathologist with the opportunity to analyze the tissue intra-operatively. Thus, the disclosed technology provides digital images with similar information content as FSA, but faster and without destroying the tissue sample itself.

The invention discloses a method and a device for a mobile terminal to scan a two-dimension code, and belongs to the field of mobile communication. The method comprises the steps of acquiring the pressure value of a mobile terminal screen pressure sensor, adjusting the scanning range of a scanning frame according to the pressure value, displaying the scanning frame after adjustment, and acquiring a two-dimension code to be identified in the scanning range and analyzing the two-dimension code to be identified. By adopting the method and the device of the invention, a mobile terminal can scan a two-dimension code or barcode quickly and accurately, and the scanning speed and effect are greatly enhanced. The method and the device are more user-friendly.

The present invention relates to a method for fabricating a scanning probe microscope (SPM) nanoneedle probe using ion beam which is preferably focused ion beam and a nanoneedle probe thereby. More particularly, the present invention relates to a method for fabricating a SPM nanoneedle probe capable of being easily adjusted with an intended pointing direction of a nanoneedle attached on a tip of the SPM nanoneedle probe and of being easily straightened with the nanoneedle attached on the tip of the SPM nanoneedle probe along the intended pointing direction, and to a SPM nanoneedle probe thereby. Also, the present invention relates to a method for fabricating a critical dimension SPM (CD-SPM) nanoneedle probe capable of precisely scanning the sidewall of an sample object in nanoscale using ion beam which is preferably focused ion beam, and to a CD-SPM nanoneedle probe thereby. More particularly, the present invention relates to a method for fabricating a CD-SPM nanoneedle probe capable of precisely scanning the sidewall of the sample object in nanoscale by bending a portion of an end of the nanoneedle attached on the tip of the SPM nanoneedle probe in a specific angle toward a direction other than an original direction in which the nanoneedle attached on the tip of the SPM nanoneedle probe extends out, and to a CD-SPM nanoneedle probe thereby. A method of fabricating scanning probe microscope (SPM) nanoneedle probe using ion beam, comprises: positioning the probe so that a tip of the probe on which the nanoneedle is attached faces toward a direction in which the ion beam is irradiated; and aligning the nanoneedle attached on the tip of the probe with the ion beam in parallel by irradiating the ion beam toward the tip of the probe on which the nanoneedle is attached. A method of fabricating a critical dimension scanning probe microscope (CD-SPM) nanoneedle probe using ion beam, comprises: screening a certain portion of the nanoneedle attached on a tip of the probe using a mask; and bending a part of the nanoneedle exposed out of the mask to align the part of the nanoneedle by irradiating the ion beam on the part of the nanoneedle exposed out of the mask, along the direction of the irradiated ion beam.

A locating and scanning device of focused ultrasound treatment with high intensity is a three-dimensional locating, five-dimensional accurate scanning device in a focused ultrasound treatment system with high intensity. A ultrasonic probe for finding position and a focused ultrasonic transducer are mounted on a bracket of five-dimensional accurate scanning device in treatment head in way of internal and external shaft sleeving. The treatment head is connected with an arm plate by revolving modules of the two sides and a set of pushpull modules and the arm plate is connected with a connecting plate by revolving shaft and arc track and the connecting plate is connected with an upright column by a straight guiderail, finally the three-dimensional locating device is obtained. The focused ultrasound treatment system with high intensity focuses the ultrasonic transducer to implement the upper to lower treatment mode. After three-dimensional locating, the system exactly locates, scanns, images and treats the focus of patient by the five-dimensional accurate scanning kinematic mechanism in the treatment head. The focused ultrasonic transducer can satisfy the different treatment attitudes from upper to lower and reduce the movement error during accurate scanning.