Patent ID: 8605562

Claim:
A micro-hologram recording apparatus comprising: a first light source configured to emit a first light, the first light being coherent; a first optical system configured to divide the first light into a signal beam and a reference beam, and supply the signal beam and the reference beam to a location on a hologram recording medium; a second light source configured to emit a second light, the second light being incoherent and not interfering with the signal beam and the reference beam; and a second optical system configured to supply the second light to the same location as the signal beam and the reference beam on the hologram recording medium, wherein with exposure energy corresponding to a lower limit of a linear recording zone of the hologram recording medium being E 1 , and exposure energy corresponding to an upper limit of the linear recording zone of the hologram recording medium being E 2 , the first light source is configured to apply exposure energy of 0 to (E 2 −E 1 ) to the hologram recording medium, and the second light source is configured to apply the exposure energy E 1 to the hologram recording medium.