JP3012522U - prepaid card - Google Patents

Abstract

(57) [Summary] [Object] To make it possible to easily and highly accurately read a photoluminescent layer of a prepaid card in which a photoluminescent layer containing a phosphor is provided on a substrate. [Structure] A substrate 7, a base layer 4 that absorbs an excitation wavelength range of a phosphor and transmits an emission wavelength range, and a photoluminescence layer 3 including a phosphor are sequentially stacked. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a prepaid card.

[0002]

[Prior art]

 In recent years, a magnetic recording / reproducing apparatus reads a magnetic barcode of a magnetic stripe provided on a prepaid card or the like to obtain the amount of money, the number of times, the date, and other personal information.

In such a case, it is desirable that the personal information recorded on the magnetic stripe of a prepaid card or the like be confidential and hard to be forged. If a bar code that cannot be seen is provided, confidentiality can be sufficiently maintained and forgery can be effectively prevented.

For this reason, a pre-paid card is printed with a bar code formed of a photoluminescence layer using a phosphor that emits light in the infrared wavelength region so that the pre-paid card can be easily viewed and printed on the pre-paid card. Attempts have been made to obtain information such as the prices given.

[0005]

[Problems to be solved by the device]

 However, the bar code consisting of a conventional photoluminescence layer printed on a prepaid card using a phosphor has a significantly different emission brightness depending on the color of the background, which affects the reading accuracy and may be difficult to read. .

[0006]

[Means for Solving the Problems]

 The present invention has been made as a result of various studies in view of the present situation, and includes a substrate, a base layer that absorbs the excitation wavelength range of the phosphor and transmits the emission wavelength range, and a photoluminescence layer containing the phosphor. The prepaid card is characterized in that and are sequentially laminated.

[0007]

[Action]

 Therefore, the photoluminescence layer can be easily read, and information such as price and various personal information can be recorded without knowing the whereabouts of the prepaid card or the like, and the confidentiality of the prepaid card or the like can be sufficiently maintained. It is designed to effectively prevent counterfeiting.

[0008]

【Example】

 The invention will be described below with reference to the drawings. In the prepaid card A, the magnetic layer 6 is provided on the front surface of the substrate 7 having the print layer 10 provided on the back surface, and the print layer 5 that covers the magnetic layer 6 by performing normal printing is provided on the magnetic layer 6. An underlayer 4 containing a phosphor excitation light absorbing material is provided on the printed layer 5, and a photoluminescence layer 3 having various widths is provided on the underlayer 4 to form the barcode 1.

Therefore, also in the prepaid card A, the excitation light emitted from the issuing diode of the CCD is provided with the photoexcitation layer 3 by the underlayer 4 containing the phosphor excitation light absorbing material and Excitation light is absorbed and issuance is transmitted, and the output voltage S of the portion without the photoluminescence layer 3 is reduced without decreasing the output voltage S of the portion with the photoluminescence layer 3 and the photoluminescence layer 3 is reduced. The ratio S / N of the output voltage S of a certain portion and the output voltage N of the other portion becomes large, so that the barcode 1 formed by using the photoluminescence layer 3 can be read with high accuracy.

[0010]

[Effect of device]

 The prepaid card obtained by the present invention has a very small output voltage, a large S / N, and a large photoluminescence as compared to the conventional prepaid card obtained without the underlayer. It can be seen that the layers can be read easily and with high accuracy.

[Brief description of drawings]

FIG. 1 is a plan view of a prepaid card according to the present invention.

FIG. 2 is a partial cross-sectional view of the prepaid card shown in FIG.

[Explanation of symbols]

A prepaid card (printed material of photoluminescence layer of prepaid card) 3 photoluminescence layer 4, 5 underlayer 7 substrate

Claims (1)

[Scope of utility model registration request] 1. A substrate and absorption of the excitation wavelength region of the phosphor,
A prepaid card, characterized in that a base layer that transmits the emission wavelength range and a photoluminescence layer containing a phosphor are sequentially stacked.