Abstract: Provided is a dimension measuring apparatus which measures dimensions of a measurement target object without the need of complicated operations by a user. According to dimension measuring apparatus (100), laser (15) radiates laser beams to form at least two feature points on a measurement target object. Decoder (20) measures a distance from the measurement target object by using reflection light of at least two laser beams reflected on the measurement target object. Imaging sensor (10A) captures an image of the measurement target object to which at least the two laser beams are radiated. Dimension measurement section (30) measures a length of the measurement target object on a line connecting the two feature points on the basis of the distance from the measurement target object, a position of the measurement target object in the image, and positions of the two feature points in the image.

Abstract: Provided is a dimension measuring apparatus which measures dimensions of a measurement target object without the need of complicated operations by a user. According to dimension measuring apparatus (100), laser (15) radiates laser beams to form at least two feature points on a measurement target object. Decoder (20) measures a distance from the measurement target object by using reflection light of at least two laser beams reflected on the measurement target object. Imaging sensor (10A) captures an image of the measurement target object to which at least the two laser beams are radiated. Dimension measurement section (30) measures a length of the measurement target object on a line connecting the two feature points on the basis of the distance from the measurement target object, a position of the measurement target object in the image, and positions of the two feature points in the image.

Abstract: In an optical information reading device configured to read a code symbol on a subject to be read by acquiring an image of the subject to be read with an image pickup portion and analyzing the image, a laser light source and an irradiation optical system is provided as an irradiator configured to irradiate the subject to be read to form a guide mark indicating an image pickup resolution of the image pickup portion. It is preferable that the irradiator is configured to emit a plurality of radially diffused light beams so as to form the guide mark at equal intervals on the subject to be read.

Abstract: An image reading device includes an illumination system and a processor that causes the illumination system to produce illumination according to an illumination period having a continuous or substantially continuous, illumination sub-period and at least one pulsed, illumination sub-period. The illumination period allows the image reading device to determine a proper exposure for imaged indicia by sectioning a single frame into individual exposures.

Abstract: In an optical information reading device configured to read a code symbol on a subject to be read by acquiring an image of the subject to be read with an image pickup portion and analyzing the image, a laser light source and an irradiation optical system is provided as an irradiator configured to irradiate the subject to be read to form a guide mark indicating an image pickup resolution of the image pickup portion. It is preferable that the irradiator is configured to emit a plurality of radially diffused light beams so as to form the guide mark at equal intervals on the subject to be read.

Abstract: An image reading device includes an illumination system and a processor that causes the illumination system to produce illumination according to an illumination period having a continuous or substantially continuous, illumination sub-period and at least one pulsed, illumination sub-period. The illumination period allows the image reading device to determine a proper exposure for imaged indicia by sectioning a single frame into individual exposures.

Abstract: An imaging module for an image scanning and/or reading device, contains a camera module, a decoder module, and a chassis module for mounting the camera and decoder modules. The camera module includes a module body having a surface for receiving a circuit board, the surface including one or more recessed portions for preventing damage to the body when the one or more contacts of the circuit board are soldered. The decoder module includes a folded circuit board arrangement including parallel first and second circuit boards. The chassis module includes a main chassis having a portion that engages a processor of the decoder module to transfer heat from the processor into the main chassis.

Abstract: A decoder 20 of a code scanner 1 measures a distance to a baggage 4 based on a reflection light by the baggage 4 of a laser light 15a outputted by a laser light generator 15, which is detected by a CMOS image sensor 13, adjusts focus of a focus lens 11 and irradiation light amount of illumination by a pulse LED 14 at image pickup based on the measured distance, analyzes the image including a code symbol 5 on the baggage 4 whose image is picked up under conditions after the adjustments, and decodes information indicated by the code symbol.

Abstract: An imaging device preferably for use in a 2-D CCD or CMOS sensor is disclosed. The illumination means uses a plurality of illumination sources, some of which are coupled to lenses in an offset manner to promote far field illumination, and some of which are not so coupled and are arranged to provide near field illumination.

Abstract: In an optical code detection system and method, infrared pulses are utilized to detect the presence of an object within the range of an optical imaging device, but the image of an infrared pulse reflected from the object is also analyzed to determine the distance between the object and the imaging device. An illumination pulse is then produced to illuminate the optical code on the object, and the characteristic of that pulse, such as duration, are controlled to provide appropriate exposure for an object at the detected distance.

Abstract: A decoder 20 of a code scanner 1 measures a distance to a baggage 4 based on a reflection light by the baggage 4 of a laser light 15a outputted by a laser light generator 15, which is detected by a CMOS image sensor 13, adjusts focus of a focus lens 11 and irradiation light amount of illumination by a pulse LED 14 at image pickup based on the measured distance, analyzes the image including a code symbol 5 on the baggage 4 whose image is picked up under conditions after the adjustments, and decodes information indicated by the code symbol.

Abstract: An imaging device preferably for use in a 2-D CCD or CMOS sensor is disclosed. The illumination means uses a plurality of illumination sources, some of which are coupled to lenses in an offset manner to promote far field illumination, and some of which are not so coupled and are arranged to provide near field illumination.

Abstract: In an optical code detection system and method, infrared pulses are utilized to detect the presence of an object within the range of an optical imaging device, but the image of an infrared pulse reflected from the object is also analyzed to determine the distance between the object and the imaging device. An illumination pulse is then produced to illuminate the optical code on the object, and the characteristic of that pulse, such as duration, are controlled to provide appropriate exposure for an object at the detected distance.

Abstract: A relatively rapidly moving object is imaged with a sensor incorporating a rolling electronic shutter, while using flash illumination which is comparable to or dimmer than ambient light. This is achieved by utilizing a physical shutter between the object and sensor which is synchronized to the flash. Preferably, the physical shutter is also operated so as to be open for a time interval which is coextensive with the presence of the flash. Preferably, an optical mechanism is provided between the object and sensor which causes the image to be focused when the light is flashed and blurred otherwise. Preferably, an optical filter is positioned between the object and sensor, and this filter is constructed to transmit to the CMOS sensor light at the wavelength of the flashing light source but to attenuate ambient light.