FILTER FOR OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MEDIUM, METHOD FOR MANUFACTURING SUCH OPTICAL RECORDING MEDIUM, OPTICAL RECORDING METHOD AND OPTICAL REPRODUCING METHOD

摘要

The present invention provides a filter for optical recording media capable of preventing diffused reflection from a reflective layer caused by an information beam and a reference beam in the optical recording medium and preventing occurrences of noise without causing deviation in selective reflection wavelength even when an incidence angle is changed, a holographic optical recording medium that has not yet been conventionally provided, using the filter for optical recording media, a method for producing the optical recording medium efficiently at low-cost, and an optical recording and reproducing method using the optical recording medium using the optical recording medium. To this end, the present invention provides a filter for optical recording media containing two or more cholesteric liquid crystal layers laminated to one another, and a holographic optical recording medium using the filter for optical recording media.