Patent ID: 7990829

Claim:
An optical recording method, comprising: (i) applying recording light to at least one focus point pattern recorded on a recording layer disposed in an optical recording medium, and controlling a focal length L so as to match the focal length L with a focal length BL, where the focal length L is a distance between a position of an objective lens disposed on an optical path of the recording light and a focus point of the recording light transmitted through the objective lens, and the focal length BL is a distance between a position of the objective lens and a focus point recorded in the focus point pattern; and (ii) applying the recording light whose focal length L is controlled to an area other than the area where the focus point pattern is recorded on the recording layer so as to form an interference image, and recording the interference image on the recording layer, wherein the optical recording medium comprises the recording layer for a holographic recording, and the at least one focus point pattern recorded on the recording layer, and further wherein the recording light comprises information light and reference light, and a holographic pattern is recorded by making the information light and the reference light interfere.