JPH0670038U - Two-dimensional data code card and camera - Google Patents

Abstract

(57) [Abstract] [Purpose] A compact and inexpensive two-dimensional data code sheet and a camera that captures the image [Structure] Substrate 1 A pattern 2 is printed on the two-dimensional data code with infrared-reflecting paint, and then printed. The pattern 2 is invisible and is covered with the infrared ray transmitting paint 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slip on which a pattern of a two-dimensional data code is printed and a camera for picking up an image of the slip.

[0002]

[Prior art]

 As shown in FIG. 4, a two-dimensional data code card conventionally used for identification is printed with a matrix pattern pattern b of a two-dimensional data code on a part of a card base a as shown in FIG. A film c that transmits infrared rays and is opaque to visible light is pasted on b so that the pattern b cannot be seen.

[0003]

[Problems to be solved by the device]

 With such a code stamp, when attaching the film c opaque to visible light to the pattern b, firstly make a hole to attach the film c to the cover film d to be attached to the card a, and attach the film c to this hole position. It was necessary to make the pattern b invisible on the film c.

It is an object of the present invention to provide a code slip that can be mass-produced inexpensively by a printing process without such a trouble and a camera that images the code slip to identify the code slip.

[0005]

[Means for Solving the Problems]

 1 of this invention will be described with reference to FIGS. The code form A is a matrix pattern pattern 2 which is a two-dimensional data code printed on the substrate 1 with a paint or the like that reflects infrared wavelengths. The pattern 2 transmits infrared rays and is invisible. It is characterized in that it is printed with the concealable visible light opaque paint 3.

Next, the second invention will be described with reference to FIG. The camera for picking up a two-dimensional data code sheet according to claim 1, wherein the optical system lens (5) of the camera (4) is detachably provided with a red line filter (6).

[0007]

[Action]

 In the code form A configured as shown in FIGS. 1 and 2, the pattern of the two-dimensional data code is completely invisible from the outside, and the camera 4 captures the pattern of the two-dimensional data code (using an infrared filter). Alternatively, the image signal for printing a character pattern (without an infrared filter) that hides this code pattern is processed and identified by the image pickup signal processing device, and the signal is sent to a device such as a CRT monitor, storage, and recording.

[0008]

【Example】

 1, 2 and 3 are embodiments of these inventions. The base 1 is made of a metal plate, a synthetic resin plate, paper or the like.

The coating material 3 that transmits infrared rays and does not transmit visible rays can be obtained by experiments.

An infrared filter 6 is detachably provided in front of the optical system lens 5 of the camera 4 for capturing the code A. In this example, a rod 7 projects from the body of the camera 4 and is rotatably supported on the end of the filter 6. The dotted line in the figure shows that the filter 6 has been rotated and removed from the optical system.

Other than this example, it is easily conceivable to insert the filter 6 from the side of the optical system.

The camera 4 is connected to a device for transmitting and processing a captured video signal. That is, it is an image pickup signal processing device, a CRT monitor, a memory, a recording device, and the like.

The pattern of the two-dimensional data code has a size of 2.6 mm square and stores information of about 50 digits. Therefore, the vote is extremely small.

[0014]

[Effect of device]

 According to this invention, the code slip can be provided at low cost because it can be easily performed only by the printing process, and it can be widely used for identification tags of products. When printing on a two-dimensional data code, not only plain printing that simply hides the code pattern, but also character codes, etc., and when capturing this with a camera, remove the infrared filter Since the print becomes an image signal and can be identified by the CRT monitor and the storage / recording device, it is extremely convenient that it can be collectively processed by the device without having to take a look at the code slip.

The tag attached to a product such as a precious metal is preferably as small as possible without spoiling the appearance and aesthetics, and it is often the case that the customer does not want to show specific information about the product, but it is small and has a large amount of information. You can get beautiful tags.

[Brief description of drawings]

FIG. 1 is a sectional view schematically showing an embodiment of a code slip of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing an embodiment of a camera.

FIG. 4 is a cross-sectional view showing a conventional code slip.

Claims (2)

[Scope of utility model registration request] 1. A base material, such as paint reflecting infrared wavelengths,
A two-dimensional data code characterized by printing a matrix pattern, which is a two-dimensional data code, and printing with a visible light opaque paint that transmits infrared rays and conceals it so that it cannot be seen. Vote. 2. The camera for picking up a two-dimensional data code slip according to claim 1, wherein an infrared filter is detachably provided on the optical system lens.