JP4475754B2 - Combination of parallel forming jigs - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a parallel forming jig used for manufacturing a hologram device and a combination thereof.
[0002]
[Prior art]
Conventionally, a hologram apparatus is manufactured through the following steps. First, an object is prepared by sequentially providing a hologram photosensitive material and a protective layer on a glass substrate. Next, a hologram layer is formed on the hologram photosensitive material by subjecting the object to exposure baking through an original plate. In this way, a hologram device having a hologram layer can be manufactured.
[0003]
[Problems to be solved by the invention]
As described above, the hologram layer is formed by performing exposure printing on the object through the original plate.
[0004]
However, when exposure printing is performed, it is necessary to accurately maintain the parallelism between the object and the original, but it is difficult to accurately maintain the parallelism between the object and the original.
[0005]
The present invention has been made in consideration of such points, and an object of the present invention is to provide a parallel forming jig that can accurately maintain the parallelism between the object and the original plate and a combination thereof. To do.
[0006]
[Means for Solving the Problems]
The present invention relates to an object including a photosensitive material, an original plate disposed near the object and used for exposure printing on the photosensitive material, and provided between the object and the original plate, A parallel forming jig for maintaining parallelism with the original plate, the parallel forming jig comprising a support plate and three balls each incorporated in the support plate and abutting the object and the original plate It is an assembly of parallel forming jigs.
[0008]
According to the present invention, the three balls of the parallel forming jig interposed between the original plate and the object contact the original plate and the object, respectively. Thus, the parallelism between the original plate and the object can be accurately maintained.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
1 to 3 are views showing an embodiment of the present invention. 1 to 3, the object 20 is obtained by sequentially laminating a hologram photosensitive material 18 and a protective layer 19 on a glass substrate 17.
[0011]
In this case, OMNIDEX manufactured by DuPont is used as the hologram photosensitive material 18, and polyvinyl alcohol (PVA) is used as the protective layer 19.
[0012]
Further, in order to perform exposure printing on the object 20, the original plate 15 is fixedly disposed above the object 20 by a fixing jig 15a. For example, an EB mask is used as the original plate 15.
[0013]
Further, a parallel forming jig 10 is provided between the object 20 and the original plate 15 in order to maintain parallelism between the object 20 and the original plate 15. The parallel forming jig 10 includes a support plate 11 and three ceramic balls 12a, 12b, and 12c incorporated in the support plate 11.
[0014]
The three ceramic balls 12a, 12b, and 12c have the same shape. Each of the three ceramic balls 12a, 12b, and 12c abuts on the object 20 and the original plate 15, and regulates the distance between the object 20 and the original plate 15 at three points. The parallelism between the original plate 15 and the original plate 15 is maintained. The three ceramic balls 12a, 12b, and 12c form a triangle when viewed from the plane. (FIG. 2).
[0015]
The parallel forming jig 10, the original plate 15, and the object 20 constitute a parallel forming jig combination.
[0016]
Incidentally, the object 30 is held by the holding mechanism 25 (FIG. 3). The holding mechanism 25 includes a vacuum chuck 21 having a spherical portion 21 a while vacuum-sucking the object 30, a receiving portion 22 that receives the spherical portion 21 a, and a base 24 that supports the receiving portion 22 via a spring 24. ing.
[0017]
Thus, since the holding mechanism 25 includes the spherical surface portion 21a and the spring 24, the posture of the object 30 can be changed, and the object 30 is elastically held.
[0018]
Next, the operation of the present embodiment having such a configuration will be described.
[0019]
First, the original plate 15 is fixedly arranged by the fixing jig 15 a, and the parallel forming jig 10 is arranged on the object 20 held by the holding mechanism 25.
[0020]
Next, the holding mechanism 25 is raised by the elevating mechanism 30, and the object 20 held by the holding mechanism 25 is also raised accordingly. Next, the three ceramic balls 12 a, 12 b, 12 c of the parallel forming jig 10 arranged on the object 20 sequentially come into contact with the original plate 15. During this time, the posture of the object 20 held by the holding mechanism 25 changes as the spherical surface portion 21a slides on the receiving portion 22, and thus the parallelism between the original 15 and the object 20 is changed. Can be kept accurate.
[0021]
The three ceramic balls 12a, 12b, and 12c are brought into contact with the original plate 15 as the elevating mechanism 30 is lifted. Since the contact can be made, the ceramic balls 12a, 12b, 12c are not damaged.
[0022]
Thus, after the ceramic balls 12a, 12b, 12c of the parallel forming jig 10 contact the original plate 15, in this state, the spherical surface portion 21 and the receiving portion 22 are fixed by the first fixing means (not shown) and further received. The portion 22 and the base 24 are fixed by a second fixing means (not shown) in a state where the spring 23 is pressed.
[0023]
In this way, after the position of the object 20 is accurately determined with respect to the original plate 15, the object 20 is lowered by the elevating mechanism 30, and the parallel forming jig 10 is removed from the object 20.
[0024]
Thereafter, the object 20 is again raised by the elevating mechanism 30, and light is irradiated from the original 15 side in a state where the parallel state between the object 20 and the original 15 is accurately maintained, and the hologram photosensitive material 18 of the object 20 is irradiated. Exposure printing is performed. A hologram layer is obtained on the hologram photosensitive material 18 by such an exposure baking process on the hologram photosensitive material 18.
[0025]
【The invention's effect】
As described above, according to the present invention, since the parallelism between the original and the object can be accurately maintained, the exposure printing operation with high accuracy is performed on the photosensitive material of the object using the original. be able to.
[Brief description of the drawings]
FIG. 1 is a side view showing an assembly of parallel forming jigs according to the present invention.
FIG. 2 is a plan view showing a parallel forming jig according to the present invention.
FIG. 3 is a view showing a holding mechanism for an object.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Parallel formation jig | tool 11 Support plate 12a, 12b, 12c Ceramic ball 15 Original plate 17 Glass substrate 18 Hologram photosensitive material 19 Protective layer 20 Object 21 Vacuum chuck 21a Spherical surface part 22 Receiving part 23 Spring 24 Base 25 Holding mechanism

Claims (4)

An object including a photosensitive material;
An original plate placed close to the object and used for exposure printing on the photosensitive material;
A parallel forming jig provided between the object and the original, and for maintaining parallelism between the object and the original;
The parallel forming jig is composed of a supporting plate and three balls each incorporated in the supporting plate and in contact with the object and the original plate.   2. The parallel forming jig combination according to claim 1, wherein the object is held by a holding mechanism having a posture changing portion that makes the posture variable.   3. The parallel forming jig assembly according to claim 1, wherein the holding mechanism includes a spring that holds the object elastically.   4. The parallel forming jig assembly according to claim 1, wherein each ball of the parallel forming jig is made of a ceramic ball.

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