摘要:
A sensing method for a capacitive touch panel includes charging a measure capacitor, setting the voltage across a mutual capacitor at the intersection of two traces of the capacitive touch panel, and then injecting partial charges of the measure capacitor into the mutual capacitor. When the intersection is touched, the capacitance value of the mutual capacitor is changed, and consequently the amount of charges injected into the mutual capacitor is changed. Hence, the voltage of the measure capacitor could be detected to determine whether or not the intersection is touched.
摘要:
A camera is provided. The camera includes a lens body, a first covering portion, a second covering portion and a rotating member. The first covering portion covers the lens body in a movable manner, and the second covering portion covers the lens body in a movable manner. The rotating member is rotatably disposed on the lens body and respectively connects the first covering portion and the second covering portion. The rotating member rotates to move the first covering portion and the second covering portion toward opposite directions.
摘要:
A method of capturing an image of a document is provided. First, a notebook computer having a base is provided, wherein an image pickup device is disposed on the notebook computer, and a symbol mark is formed on the base of the notebook computer. Next, a document fixer having a fixer middle mark is provided. The document is fixed by the document fixer, wherein a centerline of a long edge of the document is aligned with the fixer middle mark. Next, the document fixer is moved according to a size of the document until the fixer middle mark is aligned with the symbol mark. After the image of the document is captured, an image processing procedure is performed. By aligning the fixer middle mark with the symbol mark of the notebook computer, the document is precisely positioned and thus a sharp image with no tilted distortion is acquired.
摘要:
An external lens device is mounted in front of a lens of an image pickup device. The external lens device includes a fixer and an external lens. The fixer includes a fixing slot and an alignment slice. The alignment slice includes a first reference mark and a second reference mark. The first reference mark is enclosed by the second reference mark. The first reference mark is arranged in the middle portion of the second reference mark. After the fixer is placed in front of the image pickup device, an outer portion of the second reference mark of the alignment slice is parallel with the lens fastening part of the lens of the image pickup device, the first reference mark is aligned with a center of the lens of the image pickup device, and the second reference mark is concentric with a lens fastening part of the lens.
摘要:
The present invention discloses an adjustment device and method thereof which are applied for adjusting a photosensitive element. The adjustment device comprises a first platform, a second platform, a third platform and a cover. The first platform comprises a curved surface body and a positioning elastic element. The second platform, having a recess corresponding to each curved surface body and having a loading support portion, is arranged on a side of the first platform. The third platform is arranged on the other side of the first platform, and when the third platform, moves in an axial direction, the first and second platform moves together with the third platform. The cover compresses the photosensitive element against the second platform. When the inclination of photosensitive element is adjusted by the adjustment device, each curve surface body and each recess keep in contact due to the expansion of each positioning elastic element.
摘要:
A business card case is mountable on a notebook computer. The business card case has a receptacle for storing plural business cards. The business card case includes a protrusion part, a supporting part and a restriction structure. The protrusion part is inserted in a recess of a base of the notebook computer, so that the business card case is fixed on the notebook computer. The business card to be shot by an image pickup device of the notebook computer is supported on the supporting part. By adjusting the restriction structure of the business card case and rotating said upper cover of the notebook computer, a better shooting angle is defined between the image pickup device and the document.
摘要:
A device for cooling a light emitting diode projector includes a first cooling unit that includes a hollow portion. One end of the hollow portion includes a third cooling body and a reflection cover. The light emitting unit is adhered to one surface of the third cooling body, while the light source is projected corresponding to the reflection cover. A connection unit is disposed on the other end of the hollow portion, which can convey power source to the light emitting unit. The heat generated from the light emitting unit is directly absorbed into the third cooling body, and is transferred to the first cooling unit for performing heat exchange. The light emitting diode projector can thus obtain a better cooling effect.
摘要:
A scanning apparatus includes a scanning module. The scanning module includes plural light emitting diodes, a porous reflective plate with plural openings, and a reflective element. When the scanning apparatus starts scanning a document, the light beams emitted by the light emitting diodes are directed to the porous reflective plate. A portion of light beams reflected by the porous reflective plate are defined as reflected light beams. The light beams penetrating through the openings are diffracted to be diffractive penetrated light beams. The reflected light beams reflected by the reflective element and the diffractive penetrated light beams are projected on the document, so that enhanced uniform illumination efficacy is achieved.
摘要:
A document fixer includes a supporting plate and a fixer body. The supporting plate includes a business card fixing recess and a clamping part. The fixer body includes a first supporting plate receiving part, an ordinary document fixing recess and a second supporting plate receiving part. When the supporting plate is received in the first supporting plate receiving part, the document fixer is adapted to fix a business card. Whereas, when the supporting plate is received in the second supporting plate receiving part, the document fixer is adapted to fix an ordinary document.
摘要:
A laser scanning beam reader is provided. When a round-grating-dot matrix is in a stationary state, the laser beams passing through the round-grating-dot matrix result in line-shaped refraction beams. By the laser scanning beam reader, the motor system conventionally used for rotating the hologram disc to successively generate dot scanning beams as the line-shaped will be omitted. As a consequence, the components and configurations of the laser scanning beam reader are simplified and the cost thereof is reduced.