Apparatus for optically reading information
First Claim
Patent Images
1. An apparatus for optically reading an information code, the apparatus comprising:
- a case having one wall with a reading window through which light is transmittable, the reading window having a length and a width;
an area sensor with a pixel area composed of pixels, the pixels being arranged in rows and columns; and
an image system having an optical axis and configured to focus light on the pixel area of the area sensor so that an image corresponding to the information code is picked up by at least part of the pixels in the pixel area as pixel data, the light being reflected from the information code based on the irradiated light,wherein the area sensor is disposed in the case such that;
the pixel area is opposite to a window surface of the reading window, anda center of the pixel area is coaxial with the optical axis of the imaging system; and
row and column directions of the area sensor are inclined to directions along the length and width of the reading window, respectively, while the pixel area is orthogonal to the optical axis of the imaging system.
1 Assignment
0 Petitions
Accused Products
Abstract
In an apparatus for optically reading an information code, a case has one wall in which a reading window through which light is transmittable. The reading window has a length and a width. An area sensor has a pixel area composed of pixels. The pixels are arranged in rows and columns. The area sensor is disposed in the case such that the pixel area is opposite to a window surface of the reading window, and row and column directions of the area sensor are inclined to directions along the length and width of the reading window, respectively.
-
Citations
8 Claims
-
1. An apparatus for optically reading an information code, the apparatus comprising:
-
a case having one wall with a reading window through which light is transmittable, the reading window having a length and a width; an area sensor with a pixel area composed of pixels, the pixels being arranged in rows and columns; and an image system having an optical axis and configured to focus light on the pixel area of the area sensor so that an image corresponding to the information code is picked up by at least part of the pixels in the pixel area as pixel data, the light being reflected from the information code based on the irradiated light, wherein the area sensor is disposed in the case such that; the pixel area is opposite to a window surface of the reading window, and a center of the pixel area is coaxial with the optical axis of the imaging system; and row and column directions of the area sensor are inclined to directions along the length and width of the reading window, respectively, while the pixel area is orthogonal to the optical axis of the imaging system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An apparatus for optically reading an information code, wherein the information code is a one-dimensional code, the apparatus comprising:
-
a case having one wall in which a reading window through which light is transmittable, the reading window having a length and a width; and an area sensor with a pixel area composed of pixels, the pixels being arranged in rows and columns, the area sensor being disposed in the case such that the pixel area is opposite to a window surface of the reading window, and row and column directions of the area sensor are inclined to directions along the length and width of the reading window, respectively; a lighting system configured to irradiate light on the one-dimensional code; an imaging system configured to focus light on the pixel area of the area sensor so that an image corresponding to the one-dimensional code is picked up by at least part of the pixels in the pixel area as pixel data, the light being reflected from the one-dimensional code based on the irradiated light; and a circuit configured to; set a plurality of reading pixel lines passing over a whole of the image corresponding to the one-dimensional code and stored in the pixel area; and use the pixel data in the plurality of reading pixel lines to decode the one-dimensional code; wherein the plurality of reading pixel lines are two pixel lines adjacent to each other along a direction orthogonal to the pixel line direction, a length of one of the pixel lines being different from that of the other of the pixel lines.
-
Specification