Abstract: An actuation method of virtual laser barcode scanner, in which a light spot emitted from a laser module is formed into a linear laser beam, after passing through a fixed type refractive lens, for user to align to an one dimension barcode position. When the barcode is been reading, the laser beam is switched off and a linear CCD or linear CMOS receives directly the environmental light reflected from the one dimension barcode so as to finish the barcode reading. If the reading is failed, the laser beam is switched on again. As the ON-OFF of the laser module is faster than the speed of visual persistence of human's eyes, the virtual laser barcode scanner is used as if a conventional laser barcode scanner were used.

Abstract: A multiwavelength barcode reader is used for reading a barcode, and transmitting the read barcode to a system composed of a pair of connected information devices. In the barcode reader, several sets of light sources having different wavelengths are disposed so as to enable the barcode reader to provide a light source having a suitable wavelength in accordance with a color of the barcode when reading or scanning the barcode, thereby improving the resolution of the read or scanned barcode.

Abstract: A micro scan engine module is provided, which is used to scan and read barcode data. The micro scan engine module includes an outer case and a circuit board, in which the outer case is formed as an integral body. After the outer case and the circuit board are assembled, a complete scan engine module is formed. Through the integral design of the outer case, the errors during assembly the components are reduced, the working efficiency of the scan engine module is effectively improved, and the manufacturing cost is reduced.

Abstract: A vertical cavity surface emitting laser (VCSEL) barcode scanner uses a VCSEL light source module as a required light source for scanning or reading a barcode. Since a vertical cavity features extremely small thickness, capability of generating a longitudinal single-mode, low current, low power consumption, and high stability, components of the scanner can be miniaturized, thereby reducing the manufacturing cost and assembly difficulty and improving the practicability of the product.

Abstract: A micro scan engine module is provided, which is used to scan and read barcode data. The micro scan engine module includes an outer case and a circuit board, in which the outer case is formed as an integral body. After the outer case and the circuit board are assembled, a complete scan engine module is formed. Through the integral design of the outer case, the errors during assembly the components are reduced, the working efficiency of the scan engine module is effectively improved, and the manufacturing cost is reduced.

Abstract: A multiwavelength barcode reader is used for reading a barcode, and transmitting the read barcode to a system composed of a pair of connected information devices. In the barcode reader, several sets of light sources having different wavelengths are disposed so as to enable the barcode reader to provide a light source having a suitable wavelength in accordance with a color of the barcode when reading or scanning the barcode, thereby improving the resolution of the read or scanned barcode.

Abstract: An optical system used in a barcode scanner is disclosed to include a lens, two LEDs arranged at two sides of the lens, two condensers arranged in front of the LEDs, and two curved reflectors with multiple curvatures for reflecting a major part of light from the LEDs through the condensers onto the left and right sides of an image mapping surface on a barcode and a minor part of light onto the center area of the image mapping surface so that the receiving characteristic of the lens can pick up an evenly distributed bright image from the image mapping surface on the barcode and the posterior image processing of the barcode scanner can obtain a strong and clear image signal to facilitate barcode and to increase recognition rate and accuracy.

Abstract: A barcode scanner includes primarily a machine body and a light source mechanism. An interior of the machine body contains a holding space, and a front end of the machine body consists of a light access. The light source mechanism is installed in the holding space of the machine body, and contains a light source, a condenser, a lens, a photo-induced receiver, and a reflector. The condenser is located at a front end of the light source, the lens is located at one side of the light source, the photo-induced receiver is located at a rear side of the lens, and the reflector is located at a proper distance to a front of the condenser and the lens. Accordingly, an effect of barcode scanning is improved, a range of visual angles covered by the light source is enlarged, power consumption is lowered, cost is saved, and assembling is facilitated.

Abstract: An optical system used in a barcode scanner is disclosed to include a lens, two LEDs arranged at two sides of the lens, two condensers arranged in front of the LEDs, and two curved reflectors with multiple curvatures for reflecting a major part of light from the LEDs through the condensers onto the left and right sides of an image mapping surface on a barcode and a minor part of light onto the center area of the image mapping surface so that the receiving characteristic of the lens can pick up an evenly distributed bright image from the image mapping surface on the barcode and the posterior image processing of the barcode scanner can obtain a strong and clear image signal to facilitate barcode and to increase recognition rate and accuracy.

Abstract: A barcode display device is disclosed to include a connection interface connectable to a host system, a microprocessor for receiving data from the host system through the connection interface and converting the received data into a barcode signal, a display screen, and a display drive control module for driving the display screen to display the barcode signal outputted from the microprocessor so that the user can scan the displayed barcode with a barcode reader and store the barcode data in a memory inside the barcode reader.

Abstract: A light source and lens arrangement used in a barcode scanner is disclosed to include a lens, and two light sources arranged at two opposite lateral sides of the lens for emitting light onto a barcode for enabling the lens to pick up the image of the barcode and to map the image onto an image plane, each light source including a light-emitting diode, and a mirror having a reflecting surface of anisocurvature design for reflecting light from the light-emitting element toward the barcode for enabling the lens to a bright image of the barcode in uniform brightness.