US 2009/0290459 A1 · Optical Disk Image Forming Device and Optical Disk Image Forming Method

Abstract

When an optical disk image forming device forms an image on an optical disk, the image forming device reads information of kinds of coloring matters used in an image forming area from information described in an information area of the optical disk. Then, the optical disk image forming device reads from a table laser power strength information corresponding to the information of the kinds of the coloring matters and a maximum linear velocity (Nx) at the time of forming the image and applies a laser beam having this laser power strength to form the image on the image forming area of the optical disk. Thus, since the discoloration of the coloring matter in the image forming area is always saturated, the image having a constant contrast can be formed on the image forming area of the optical disk.

Claims12

Dependent claims

An optical disk image forming device for forming a visible image on an optical disk which includes a layer of a coloring matter and in which an image forming area is set, the optical disk image forming device comprising:

a rotating unit that rotates the optical disk at a constant angular velocity;
a laser applying unit that applies a laser beam to the optical disk to form the visible image on the image forming area;
and
a laser power setting unit that sets laser power strength of the laser beam applied by the laser applying unit to a constant laser power strength by which discoloration of the coloring matter is saturated over an entire part of the image forming area when the visible image is formed in the image forming area.

1 more element

A method of forming a visible image on an optical disk having a layer on which a coloring matter is applied and in which an image forming area is set, the method comprising:

a rotating step of rotating the optical disk at a constant angular velocity;
a laser power strength setting step of setting laser power strength of a laser beam applied to the image forming area to form the visible image on the image forming area to a constant laser power strength by which discoloration of the coloring matter is saturated over an entire part of the image forming area;
and
an image forming step of forming the visible image on the image forming area by irradiating the optical disk with the laser beam having the constant power strength.

1 more element

An image forming system for forming a visible image by applying a laser beam to an image forming area set in an optical disk, the image forming system comprising:

an optical disk having a coloring matter layer discolored by applying the laser beam thereto;
a rotating unit that rotates the optical disk at a constant angular velocity;
a laser applying unit that applies the laser beam to the optical disk to form the visible image on the image forming area;
and
a laser power setting unit that sets laser power strength of the laser beam applied by the laser applying unit when the visible image is formed in the image forming area to a constant laser power strength by which discoloration of a coloring matter is saturated over an entire part of the image forming area.

2 more elements

Dependencies are inferred from the claim text.

Optical Disk Image Forming Device and Optical Disk Image Forming Method

Life of this patent

Optical Disk Image Forming Device and Optical Disk Image Forming Method

Life of this patent

Abstract

Claims12