Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device or a small image forming unit for forming the image of a code symbol by using a minimum amount of power. SOLUTION: The semiconductor device or the small image forming unit for forming the image of the optical code symbol has the pixels of not more than 1024. The short size of each pixel is 2 μm to 4 μm and it has the aspect ratio of 2 to 1. It is desirable that the pixels are arranged in a single row. The optical and electrical system of the small image forming unit is optimized so that the volume of one-dimension or the larger dimension on the small image forming unit is reduced. A bar code reader including a sensor for imaging a field of view of the reader having the single semiconductor device is further supplied. A device or technology for reducing and/or eliminating necessity for target illumination by the image forming unit are supplied. Thus, overall power consumed by the image forming unit and/or the whole size is reduced. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device or a compact image forming device for forming an image of an optical code-symbol. SOLUTION: A semiconductor device or miniature imager for imaging optical code symbols comprises no more than 1024 pixels, wherein each of the pixels has an aspect ratio that is greater than 2 to 1 with a short dimension not greater than 4 μm and not less than 2 μm, wherein preferably the pixels are arranged in a single row. The optical and electrical systems of the miniature imager are optimized to reduce one or more dimensions or the volume of the imager. Also provided is a bar code reader including a sensor for imaging a field of view of the reader comprising a single semiconductor device as described above.; Apparatus and techniques are provided which reduce and/or eliminate the need for illumination of a target by the imager, thereby reducing the overall power consumed by the imager and/or its overall size. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To miniaturize a bar-code reader. SOLUTION: The scanning module is formed as a thin and flat module of low electric power consumption by reducing its size and weight. The reverse reflective optical scanning module includes a light source attached to a substrate of the scanning module and at least one reflection mirror for reflecting and reorienting the light beam for scanning along an optical path existing on at least a portion atop the module. The scanning beam is longer than the length in the side part of the module to be passed with the scanning beam during the course of heading toward a target. COPYRIGHT: (C)2004,JPO
Abstract:
An optical scan module, for example for in a bar code reader including a light source, 208 mounted on the base of the module and at least one fold mirror, 213,215, for reflecting and redirecting the scanning light beam along an optical path, 212,214,206, which is parallel to the base and over at least a portion of the top side surface of the module, so that the scanning beam is longer than the length of the side of the module which the scanning beam passes over enroute to the target. Focusing optics for collecting light reflected from the indicia comprises either an element configured such that its first surface receives the incoming light, and the second surface attenuates rays collected from the middle at the scan line relative to the rays collected from the ends or an element having a cross-section of a cosine function over one cycle. The sensor for detecting the reflected light has selectively activatable discrete 1 and 2 portions corresponding to the position of the spot beam on the target indicia.