JPH07262616A - Seal to absorb irregular reflection light in compact disk - Google Patents

Abstract

PURPOSE:To absorb irregular reflection light in a compact disk while the disk is played by applying an adhesive on the whole surface of a donut-like sheet to absorb laser light and sticking the sheet to the center part of a compact disk. CONSTITUTION:The sheet to absorb irregular reflection light in a compact disk consists of an elastic material such as a vinyl or soft plastic film. The whole bottom face of the sheet to absorb laser light is coated with an adhesive 2 having high transparency. It is preferable that the absorption sheet 1 is in a film state having elasticity and that the material and color is selected to show the max. absorption of laser light. The adhesive 2 used is such one that has high transparency, does not damage a compact disk, and can be peeled off when the user wants to peel off the seal afterward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diffuse reflection absorbing seal inside a compact disc, wherein the diffuse reflection absorbing seal absorbs diffuse reflection of a laser beam inside the compact disc.

[0002]

2. Description of the Related Art Conventionally, when playing a compact disc, an audiophile has painted the transparent part at the center of the compact disc with a paint that absorbs the laser beam to absorb the irregular reflection of the laser beam inside the compact disc. By doing so, he was able to overcome muddy sound, ambiguity in sound localization, and so-called digital odor. If this is done, there is a danger that the compact disc will become unplayable when painting fails, and that powder of paint will contaminate the inside of the compact disc player. Further, it is inconvenient that such a process cannot be performed on a compact disc borrowed from another person.

[0003]

DISCLOSURE OF THE INVENTION The present invention can easily absorb the diffused reflection of a laser beam inside a compact disc by simply sticking a seal, eliminating the need for painting, and providing a compact disc for borrowing. It is also an object of the present invention to provide a seal which can be subjected to diffuse reflection absorption treatment and can easily be restored to its original state.

[0004]

According to the present invention, an adhesive 2 is applied to the entire lower surface of a doughnut-shaped laser beam absorbing sheet 1.

[0005]

Since the present invention has taken the above-mentioned means, when using it, the laser beam absorbing sheet 1 is attached to the center of the upper surface of the compact disc so as not to get into the hole, so that the compact disc player can be used. If you play
The laser beam absorbing sheet 1 absorbs the laser beam diffusely reflected inside the compact disc.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described in more detail below.

In this embodiment, the diffuse reflection absorbing seal inside the compact disc is made of an elastic material such as film vinyl or soft plastic, and has a highly transparent adhesive on the entire lower surface of the laser beam absorbing sheet 1. 2 is applied.

It is desirable that the laser beam absorbing sheet 1 is a film and is elastic, and the material and color of which absorb the laser beam most. And if the surface is smooth, it does not hinder the rotation of the compact disc, so it is even better.

The adhesive 2 has a high transparency and does not damage the compact disc, and can be peeled off when the seal is desired to be peeled at a later date.

[0010]

According to the present invention, the compact disc can be easily processed, and thereafter the compact disc can be easily restored to its original state. And compact
The effect of absorbing irregularly reflected laser light inside the disk is also remarkable.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

 1 ... Laser beam absorption sheet 2 ... Adhesive

Claims (1)

[Claims] 1. A diffuse reflection absorption seal inside a compact disc, wherein an adhesive (2) is applied to the entire lower surface of a donut-shaped laser beam absorption sheet (1).