Grating code reading sheet with packaging structure

Abstract

The invention discloses a grating code reading sheet with a packaging structure. The code reading sheet comprises a grating code reading sheet. The grating code reading sheet is provided with a packaging structure. The packaging structure comprises a surface transparent layer and a bottom transparent layer. The grating code reading sheet is bonded between the surface transparent layer and the bottom transparent layer. Beneficial effects are that: the surface transparent layer and the bottom transparent layer are both glass sheets made of common glass materials, the grating code reading sheet is made of common plastic materials, the glass sheets have the advantages of being resistant to abrasion, not prone to deformation, high in light transmittance and the like, and due to the arrangementof the glass sheets, normal use of the grating code reading sheet is not affected, and meanwhile the grating code reading sheet can be protected against abrasion.

Description

technical field [0001] The invention relates to a grating code reading chip, in particular to a grating code reading chip with a packaging structure. Background technique [0002] At present, commonly used grating reading chips include grating reading chips without casing and single plastic grating reading chips. The grating reading chip without casing is a thin plastic sheet. The advantage is that it can be read directly with the grating reading chip, which is convenient and fast; the disadvantage The reason is that the grating code-reading chip without a shell itself is too thin and light, easy to lose, and fragile. When in use, it cannot be close to the password area to be recognized, which has a great impact on normal recognition. Therefore, people use transparent plastic sheets to press on the grating code-reading On the top of the chip, the problem of not being able to stick to it has been solved. The single plastic grating reading chip is composed of a plastic sheet ...

AI Technical Summary

Problems solved by technology

[0002] At present, commonly used grating reading chips include grating reading chips without housing and individual plastic grating reading chips. The grating reading chip without housing is a thin plastic sheet. The advantage is that it can be read directly with the grating reading chip, which is convenient and fast; the disadvantage The reason is that the grating code reading chip without a shell itself is too thin and light, easy to lose, and fragile. When in use, it cannot be close to the password area to be recognized, which has a great impact on normal recognition. Therefore, people use transparent plastic sheets to press the grating code reading chip. On the top of the chip, it solves the problem of not being able to cling

A separate plastic grating reading chip is composed of a plastic sheet and a grating reading chip. When using it, the plastic sheet needs to be pressed and pasted on the grating reading chip. The advantage is that the production cost is low; the disadvantage is that the plastic sheet and the grating reading chip are separated structures. A separate plastic grating reading chip needs to be equipped with an additional plastic sheet, which is cumbersome to use, and the plastic sheet is not wear-resistant and prone to scratches. After a period of use, the transparent plastic sheet begins to become blurred, which affects the light transmittance.

Images