JP3815510B2 - Microscopic array device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a microscopic arrangement device for arranging a large number of translucent microscopic objects on a translucent screen substrate on which an adhesive material is arranged.
[0002]
[Prior art]
When placing an adhesive material on an optical glass plate and filling and arranging beads, which are optical components, on this glass plate, the operator wears gloves and presses the beads against the adhesive material with the operator's hand. However, the beads are arranged without gaps. The beads arranged on the plate are visually checked by the operator.
[0003]
[Problems to be solved by the invention]
However, since the operator visually checks the bead arrangement state, there is a problem that the bead arrangement state is not always constant depending on the operator. In particular, there is a problem that it is difficult to make the height of the beads on the substrate uniform, and there is a demand to automate the arrangement of the beads.
Accordingly, the present invention has been made to solve the above-described problems, and the height direction of a large number of light-transmitting microscopic bodies is uniform with no gap with respect to a light-transmitting screen substrate on which an adhesive material is disposed. An object of the present invention is to provide an apparatus for arranging microscopic objects that can be arranged as described above.
[0004]
[Means for Solving the Problems]
The above object is achieved, in the invention of claim 1, the screen substrate which adhesive has arranged translucency, an array system for a microstructure body for arranging a light-transmitting fine body, translucent a micro-supplying means for supplying a light-transmitting fine body on the adhesive material of the screen substrate having sex, each translucent microbodies supplied to the screen substrate adhesive material on a light-transmitting, substantially Aligning means comprising a squeegee for aligning to a predetermined height and each light transmitting micro object aligned at a substantially predetermined height are pressed to determine the height of the micro object on the translucent screen substrate . A removal means comprising: a disposing means having a roller for pressing the microscopic object, a high pressure fluid supply source for blowing off the translucent microscopic object, and a suction means for sucking the blown translucent microscopic object And means .
[0005]
In the present invention, when arranging a light-transmitting small body to the screen substrate having an adhesive material arranged light-minute the adhesive material on the screen substrate which micro-supplying means has a light-transmitting property Supply the body. The aligning means aligns the supplied microscopic objects on the adhesive material of the screen substrate having translucency at a substantially predetermined height. And the arrangement | positioning means can press each micro object arranged in the substantially predetermined height, and can make the height of each micro object into a predetermined height.
Accordingly, a large number of light-transmitting microscopic objects can be uniformly arranged at a predetermined height with respect to the light-transmitting screen substrate on the light-transmitting screen substrate adhesive.
In the present invention, by using a removal means, reliably remove the translucent remaining small bodies other than the minute body disposed on the adhesive material to the screen substrate having, from the screen a light-transmitting substrate by the placement means can do. With respect to the minute body supply means, alignment means, arrangement means, and removal means, the moving means moves the screen substrate having translucency . By moving the translucent screen substrate , it is possible to perform the alignment process and the arrangement process of the micro objects described above.
Further, in the present invention, the microscopic body supplying unit supplies a large number of translucent microscopic bodies at one end near the one end of the translucent screen substrate , and the alignment means makes these microscopic bodies translucent. The entire screen substrate has to be leveled. Thereby, the translucent minute bodies can be arranged without gaps on the adhesive material of the translucent screen substrate .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings.
The embodiment described below is a preferred specific example of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these forms.
[0007]
FIG. 1 is a front view showing an entire arrangement of microscopic objects according to the present invention, FIG. 2 is a plan view of the microscopic arraying apparatus of FIG. 1, and FIG. FIG.
The structure of the micro body arranging device in FIGS. 1 to 3 will be briefly described. The micro body arranging device includes a main body 10, a micro body supply source (micro body supply means) 20, an alignment means 30, an arrangement means 40, and the like. It has.
[0008]
More specifically, the microscopic arrangement device includes a removing unit 50, a moving unit 60, and a moving table 70 in addition to the main body 10, the microscopic unit supplying unit 20, the aligning unit 30, and the arranging unit 40.
The main body 10 shown in FIGS. 1 to 3 is a frame for holding the above-described elements, and includes a caster 10a for moving on the floor F, a stopper 10b for fixing the movement, and the like.
The minute body supply unit 20, the alignment unit 30, the arrangement unit 40, the removal unit 50, and the moving unit 60 are sequentially arranged at an intermediate position in the height direction of the main body 10.
[0009]
FIG. 4 shows an enlarged view of the vicinity of the minute body supply means 20, the alignment means 30, the arrangement means 40, the removal means 50, etc. shown in FIG.
4, 2, and 1, the microbody supply means 20 has a role of supplying beads B as shown in FIGS. 5 and 6. It has a nozzle 22 and the like. A large number of beads B accommodated in the bead accommodating portion 21 are supplied to the adhesive material 72 on the substrate 71 on the moving table 70 via the nozzle 22. When the micro body supply means 20 supplies a large number of beads B, a group BB having a certain volume of beads B is preferably supplied at once on the adhesive material 72 of the substrate 71 as shown in FIG. . In this case, the bead population BB is supplied on one end side (supply side) 71a of the substrate 71 of FIG.
[0010]
The aligning means 30 has a so-called squeegee 31 as used in the screen printing of FIGS. 4 and 8, preferably. The aligning means 30 is disposed downstream of the nozzles 22 (downstream of the movement of the moving table 70). The height of the squeegee 31 of the aligning means 30 can be adjusted in the arrow Z direction by the height adjusting means 32 that adjusts the height of the squeegee 31. By adjusting the height of the squeegee 31 in the arrow Z direction, the bead layer BL of the beads B can be made substantially uniform with the thickness W.
[0011]
4 includes a vertical movement means 41 and a pressure roller 42, and the operation of the vertical means 41 allows the pressure roller 42 to be moved and positioned in the arrow Z direction (vertical direction). it can. As shown in FIG. 8, the pressure roller 42 presses the bead layer BL in the direction of the arrow Z2 against the bead layer BL set to have a thickness W substantially, thereby causing the bead layer BL to have a predetermined thickness W1 (W1 <W). Force to set and arrange.
4 includes a vacuum source 51, a high-pressure fluid supply source 52, a suction pipe 53, and the like. The suction pipe 53 is oriented substantially perpendicular to the moving table 70 and is connected to the vacuum source 51. The nozzle 55 of the high-pressure fluid supply source 52 is inserted and arranged obliquely downward in the middle of the trumpet-shaped portion 54 of the suction pipe 53.
The high-pressure fluid supply source 52 is for blowing away the remaining beads B other than the beads B in which the bead layer BL is formed by the pressure roller 42 of the arrangement means 40 in FIG. 8 with high-pressure air. The remaining beads B that have been blown off can be removed by suctioning in the direction of the arrow Z1 to the outside via the suction pipe 53 by operating the vacuum source 51.
[0012]
The moving means 60 in FIGS. 1 to 3 is a device for moving the moving table 70 in FIG. 1 in the arrow X direction (left direction) at a predetermined speed. The motor 61 of the moving means 60 drives one end side of the electric belt 64 via pulleys 62 and 63. The other end side of the electric belt 50 is attached to another pulley 65. When the motor 61 is operated, the support member 66 attached to the electric belt 54 moves in the direction of the arrow X, so that the moving table 70 attached to each support portion 66 moves in the direction of the arrow X at a predetermined speed.
[0013]
Next, the substrate 71 of FIG. 4 will be described.
The substrate 71 is a screen substrate having translucency such as plastic or glass. An adhesive material 72 as shown in FIGS. 5 and 8 is disposed on the entire surface of the substrate 71. The adhesive material 72 is a double-sided adhesive tape having high translucency (transmittance), and one adhesive surface of the adhesive material 72 is pasted on the substrate 71. The other adhesive surface of the adhesive material 72 is a portion that adheres the outer peripheral surface of each bead B as shown in FIG. As the adhesive material 72, for example, a double-sided adhesive tape having a high transparency such as an acrylic type can be adopted.
[0014]
The beads B in FIGS. 5 and 8 are microspherical beads, for example, glass beads having a diameter of several tens of μm.
As shown in FIG. 3, it is preferable that a plurality of the minute body supply means 20 is preferably arranged along the depth direction D direction of the main body 10. Further, a plurality of the pressure rollers 42 in FIG. 1 are preferably arranged along the depth direction D in FIG. The removing means 50 is also provided along the depth direction D. The minute body supply means 20, the alignment means 30, the arrangement means 40, and the removal means 50 have a size corresponding to the size of the width of the substrate 71 on the moving tape 70 (the width along the depth direction D). Have
[0015]
Next, the operation of the above-described microscopic array device will be described.
The operation of the micro array device will be described by taking as an example the case of manufacturing a screen having no light directivity.
First, the adhesive material 72 is arranged on one surface (upper surface) of the substrate 71 as shown in FIGS. The back surface of the substrate 71 is placed on the moving table 70 as shown in FIG. 4, and the substrate 71 is firmly fixed to the moving table 70 by, for example, vacuum suction by the suction fixing means 74 of the moving table 70.
[0016]
Next, an operation of arranging beads on the adhesive material 72 is performed.
First, the minute body supply means 20 and the nozzle 22 are positioned on one end portion 71 a of the substrate 71 on the moving table 70. This is shown in FIG. Accordingly, the bead group BB is supplied in a state of being grouped on the adhesive material 72 of the substrate 71 and on the one end portion 71 a side of the substrate 71.
4 starts moving at a predetermined speed in the direction of arrow X by the operation of the moving means 60. As a result, as shown in FIG. 8, the squeegee 31 of the aligning means 30 sequentially forms a bead layer BL having a thickness W substantially on the adhesive material 72 while leveling the bead population BB. That is, since the squeegee 71 is on the fixed side and the moving table 70 and the substrate 71 move in the direction of the arrow X, a bead layer BL having a substantially constant thickness W is formed.
[0017]
In this state, since the thickness W of the bead layer BL is not exactly uniform, it is made uniform by using the next pressure roller 42.
That is, the pressure roller 42 of the arrangement means 40 in FIG. 8 presses each bead B of the bead layer BL in the direction of the arrow Z2. As a result, the bead layer BL is uniformized to a thickness W1 (W1 <W).
The bead layer BL that has passed through the pressure roller 42 is not attached to the adhesive material 72 because the high-pressure fluid supply source 52 of the removing means 50 in FIG. 4 blows high-pressure air toward the beads B on the adhesive material 72. Beads B are blown away from the substrate 71. Since the vacuum source 51 is operating, the remaining beads B are sucked through the suction pipe 73 and stored in a predetermined storage section.
[0018]
As described above, the group of beads BB from the microbody supply means 20 is supplied to the one end portion 71a side of the substrate 71 in FIG. 7, and the group of beads BB is supplied by the squeegee 31 as shown in FIG. Then, the bead layer BL is formed on the adhesive material 72 with a substantially constant thickness W.
However, since the thickness W of the bead layer BL is difficult to be uniformed as it is, the bead layer BL having a uniform thickness W1 is formed by the pressure roller 42 further pressing the bead layer BL. In this way, the beads are stacked on the adhesive material 72 at a constant height while moving the squeegee 31 relatively from the one end side 71a side of the substrate 71 to the other end side 71b (see FIG. 4). . The embodiment of the present invention adopts this method because if the method of supplying beads to the entire surface of the adhesive material 72 of the substrate 71 is adopted at once, an array without gaps of beads in the adhesive material 72 can be obtained. Because it becomes impossible. Therefore, in the embodiment of the present invention, the bead population BB is first formed on the one end portion 71 a of the substrate 71 as described above.
[0019]
As shown in FIG. 8, each bead B is preferably laminated with a thickness W of about 0.2 to 0.5 mm from the upper surface of the substrate 71 by the squeegee 31. The bead layer BL is further made uniform in thickness by the pressure roller 42. The pressing operation of the bead layer BL of the pressure roller 42 is preferably repeated several times for the bead layer BL. In order to form a single bead layer BL with beads pressed by the pressure roller 42, extra beads B are blown off by the high-pressure fluid supply source 52 as described above and discharged to the outside by the vacuum source 51.
[0020]
The screen S made of the substrate 71, the adhesive material 72 and the aligned beads B as described above is further covered with a covering material 76 as shown in FIG. The screen S thus produced can be used as a so-called rear projector screen as shown in FIG. 9, for example.
The rear projector includes a light projecting unit 100, and light 110 including video information from the light projecting unit 100 is reflected by the mirror 120 and the mirror 130 and projected onto the screen S. The projected information can be projected without light directivity by the action of the beads B.
The screen S can also be used as a screen for projecting video information of the rear projector 200 as shown in FIG.
[0021]
By the way, the present invention is not limited to the above embodiment.
For example, the adhesive material (adhesive layer) can be formed by directly applying an adhesive, or by applying an ultraviolet curable resin and controlling the amount of ultraviolet light to be irradiated, the ultraviolet curable resin is half coated. Of course, it can be formed in a cured state.
[0022]
It is of course possible to eliminate excess beads by inverting (turning over) the entire substrate.
Further, the screen S can be used as a screen of another type of flat display in addition to the screen of the rear projector described above.
[0023]
【The invention's effect】
As described above , with respect to the translucent screen substrate on which the adhesive material is disposed, a large number of translucent microscopic bodies can be arranged uniformly without gaps.
[Brief description of the drawings]
FIG. 1 is a front view showing an entire arrangement of microscopic objects according to the present invention.
FIG. 2 is a plan view of an apparatus for arranging microscopic objects.
FIG. 3 is a side view of an apparatus for arranging microscopic objects.
4 is an enlarged view showing a central portion of the microscopic arrangement device of FIG. 1. FIG.
FIG. 5 is a cross-sectional view showing an example of a screen to be created.
FIG. 6 is a plan view showing an example in which beads are arranged with respect to an adhesive material of a substrate.
FIG. 7 is a diagram showing an example of a group of beads supplied from a nozzle to one end side of a substrate.
FIG. 8 is a view showing a state in which a group of beads is made substantially uniform by a squeegee and the arrangement thereof is made uniform by a pressure roller.
FIG. 9 is a diagram showing an example of a rear projector using a screen obtained by the microscopic array device of the present invention.
FIG. 10 is a diagram showing another example of a rear projector using a screen obtained by the microscopic array device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 20 Minute body supply means 30 Alignment means 31 Squeegee 40 Arrangement means 50 Removal means 60 Movement means 70 Movement table 71 Substrate (object)
72 Adhesive material 42 Pressure roller B Beads ( Translucent minute body)
BB bead population BL bead layer W thickness W1 predetermined thickness

Claims (7)

A microscopic arrangement device for arranging translucent microscopic objects on a translucent screen substrate on which an adhesive material is arranged,
A microscopic body supplying means for supplying a translucent microscopic body onto an adhesive material of a translucent screen substrate;
Alignment means comprising a squeegee for aligning each translucent microscopic material supplied on the translucent screen substrate adhesive material to a substantially predetermined height;
An arrangement having a roller that presses each of the translucent microscopic bodies aligned at a substantially predetermined height and presses the microscopic body on the translucent screen substrate so that the microscopic body has a predetermined height. Means,
A removing means comprising a high-pressure fluid supply source for blowing off the translucent microscopic object, and a suction means for sucking the blown translucent microscopic object;
An apparatus for arranging microscopic bodies, comprising:   2. The apparatus for arranging micro objects according to claim 1, wherein the translucent micro bodies are spherical glass beads. The apparatus for arranging microscopic objects according to claim 1, further comprising moving means, which moves the translucent screen substrate with respect to the microscopic object supplying means, the aligning means, the arranging means and the removing means .   The minute body supply means supplies a large number of minute bodies near one end of the translucent screen substrate at a time, and the aligning means supplies these translucent micro bodies to the entire translucent screen substrate. The apparatus for arranging micro objects according to claim 1, wherein   2. The micro-array arrangement device according to claim 1, wherein the translucent screen substrate is made of plastic or glass.   The apparatus for arranging micro objects according to claim 1, wherein the adhesive material is a translucent double-sided adhesive tape.   The apparatus for arranging micro objects according to claim 1, wherein the thickness of the adhesive material is smaller than the thickness of the translucent micro bodies.

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