| 摘要 |
A slit head 76A is provided prior to intermittent feed rollers 73A and 73B. The slit head 76A is made of a rigid body such as magnetic iron and is used as a contact member. The slit head 76A is provided with a slit 78 on the side of a reference light L4 in the vicinity of an exposure position P1. The reference light L4 is transmitted through the slit 78 of the slit head 76A. In addition to magnetic iron, stainless steel and the like are used for the contact member 76A. On the side of an object light L3 at the exposure position P1, there is provided a presser plate member 76B for pressing the holographic recording medium 10 against the slit head 76A. The presser plate member 76B is also provided with a slit 82 and is arranged corresponding to an incident position of the object light L3. A magnetic member is used for the presser plate member 76B.
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