JP2006232320A - Packaging case for optical devices - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a more reliable packaging case for optical devices, which can restrict the deposit of some foreign materials causing noise against optical information and causing a deterioration in image, to either main surfaces or side ends of the optical devices. <P>SOLUTION: This packaging case for optical devices comprises a lower case having a storing part with opened upper surface and an upper case 3 for covering an opening part of the lower case and optical devices 4 stored in the lower case. The bottom surface of the storing part at the lower case is provided with adhesive members T for fixing one side surface of each of the optical devices, and the end part T1 of the adhesive member T is arranged at a position where it does not contact with one side surface of the optical device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packaging case that houses optical devices such as an optical low-pass filter, a wave plate, and a birefringent plate.

Optical devices such as optical low-pass filters are used in video cameras, electronic still cameras, and the like. These optical devices are required to be considered so that dust, dust and the like do not adhere to the incident surface (main surface) of the light beam including the optical information, and the manufacturing and packing are performed in a clean room. . Conventionally, as disclosed in Patent Document 1, a packaging case for an optical device includes a lower case in which a housing portion whose upper surface is opened, and an optical device housed in the opening portion of the lower case and the lower case. And an adhesive member such as a double-sided adhesive tape that fixes the side end of the optical device to the bottom surface of the housing part of the lower case. These optical devices are covered with an upper case to prevent entry of dust and the like.
JP 2000-296894 A

  In such a conventional configuration, the edge portion, the side surface, and the corner portion of the optical device may come into contact with the housing portion. When the optical device is housed in the above-described case, the optical device moves freely during transportation, etc. The inner wall was cut to generate resin debris, dust, and the like. Moreover, the chip | tip of the optical device itself may become garbage. Furthermore, when the optical device is fixed to an adhesive member such as a double-sided adhesive first-applied tape, the pressure-sensitive adhesive may protrude from the end of the adhesive member by pressing from the upper part of the adhesive member. Adhering to the end portion, the adhesive adhering part, the above-mentioned resin debris, dust, dust and the like may adhere. If such foreign matter adheres to the main surface of the optical device, it will cause noise for the desired optical information and cause image deterioration. Therefore, it is necessary for the user to remove the foreign matter by applying air blow or the like to the optical device. It was. However, the foreign matter adhering to the pressure-sensitive adhesive may not be completely removed by air blow or the like, and the adhered foreign matter may be deposited later with the time-dependent change of the pressure-sensitive adhesive.

  The present invention has been made in order to solve the above-mentioned problems, and is more reliable because it can suppress the adhesion of foreign substances that cause noise of optical information and cause image deterioration to the main surface and side edges of the optical device. The purpose is to provide a high packing case.

Therefore, the optical device packaging case according to the present invention includes, as shown in claim 1, a lower case in which an accommodating portion having an open upper surface is formed, and an optical portion accommodated in the opening portion of the lower case and the lower case. An optical device packaging case comprising an upper case covering the device, wherein an adhesive member for fixing one side surface of the optical device is provided on the bottom surface of the housing portion of the lower case, and an end portion of the adhesive member is It arrange | positions in the position which does not contact one side of an optical device.

In addition to the above configuration, a convex portion is formed on the bottom surface of the housing portion of the lower case, and an adhesive member for fixing the optical device is provided on the top surface of the convex portion. In addition, the position of the end portion of the adhesive member that is fixed to the optical device is disposed below the apex of the convex portion.

According to a third aspect of the present invention, in addition to the above-described configuration, the lower case has a plurality of openings formed with a plurality of openings, and the adhesive member is provided on the bottom surface of each storage. It will be.

According to a fourth aspect of the present invention, in addition to the above configuration, the adhesive member weakens the adhesive force on the side to be attached to the optical device rather than the adhesive force on the side to be attached to the bottom surface of the housing portion. .

  According to the first aspect of the present invention, since the end of the adhesive member is disposed at a position where it does not come into contact with one side surface of the optical device, the adhesive protruding from the adhesive member is the main surface or side end of the optical device. No foreign matter such as resin debris, dust, or dust adheres to the adhesive part. As a result, it is possible to suppress the adhesion of foreign matter that becomes noise of optical information and causes image deterioration to the main surface of the optical device.

According to claim 2 of the present invention, a convex portion is formed on the bottom surface of the housing portion of the lower case, and an adhesive member for fixing the optical device is provided on the top surface of the convex portion, and the adhesion is performed. The position of the edge part of the area | region fixed to the said optical device among members is arrange | positioned below the vertex of the said convex-shaped part. With this configuration, the optical device is fixed in a state where it floats upward from the bottom surface of the lower case, so that the edges, side surfaces, and corners of the optical device can be prevented from contacting the bottom surface of the housing portion, and the inner wall of the case can be prevented. Cutting does not generate resin scraps or dust. Further, by fixing the optical device to the upper portion of the convex portion, the optical device can be easily attached and detached from the adhesive member of the lower packaging case, and the workability and take-out workability of the optical device are improved. The convex part can absorb vibrations and shocks during product transportation. Furthermore, since the optical device is positioned above the convex portion and the end of the adhesive member disposed below the apex of the convex portion does not come into contact with one side surface of the optical device, the sticking out of the adhesive member The agent does not adhere to the main surface or side edge of the optical device. For this reason, the resin debris, dust, dust and the like do not adhere to the adhesive-attached portion of the optical device. In addition, unnecessary foreign matters such as resin debris, dust, and dust can be adsorbed to the lower adhesive member region from the convex portion that does not contact the optical device. As a result, it is possible to further suppress the adhesion of foreign substances that become noise of optical information and cause image deterioration to the main surface of the optical device.

  According to a third aspect of the present invention, in addition to the above-described effects, the lower case has a plurality of openings formed with a plurality of openings, and the adhesive member is provided on the bottom surface of each storage. Therefore, by providing an adhesive member along the storage portion, it can be extremely easily replaced, and the packaging case can be reused. In addition, if the adhesive member is provided only on the bottom surface of each storage unit, the use of the adhesive member as a consumable can be reduced as much as possible, which can greatly contribute to the reduction of the maintenance cost of the packaging case.

  According to Claim 4 of this invention, in addition to the said effect, it becomes easy to remove an optical device, without an adhesive member peeling from a packaging lower case. Therefore, the optical device can be easily attached / detached from the adhesive member of the packaging lower case, and the accommodation workability and removal workability of the optical device are further improved.

  An embodiment of the present invention will be described with reference to the drawings by taking an optical low-pass filter packaging case as an example. FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA with the optical low-pass filter inserted in FIG. 1 and the upper case closed. It is.

  The packaging case according to the embodiment of the present invention is made of a synthetic resin such as polyethylene terephthalate, polyethylene, or vinyl chloride, and includes a lower case and an upper case 3 that covers the lower case. Among these, the lower case has a vertically divided structure having a first lower case 1 and a second lower case 2, and is detachable from each other.

The first lower case 1 serves as a base on which the optical low-pass filter 4 is mounted, and has convex portions 11 at positions corresponding to two openings formed in the second lower case described later on the upper surface. Is formed. A double-sided adhesive tape T (adhesive member) wider than the convex portion is attached to the upper surface of the convex portion 11. At this time, the end surface portion T1 of the double-sided adhesive tape is disposed so as to wrap around the bottom surface located below the vertex 111 of the convex portion 11. Further, a locking portion 12 for attaching a second lower case 2 described later is formed on a side end portion of the first lower case 1.

The double-sided adhesive tape T has, for example, an adhesive surface formed on the front and back of the base film, and the adhesive strength of the front and back surfaces is greater than the adhesive strength of the back surface side (side to be attached to the bottom surface of the housing portion). What has weakened the adhesive strength of the optical low pass filter is preferably used. In this way, in order to have a structure in which the adhesive strength difference is provided between the front and back surfaces of the double-sided adhesive tape, it is common to use a double-sided adhesive tape having a difference in adhesive strength between the front and back surfaces. A single-sided tape with weak strength may be attached with the adhesive surface as the upper surface, or a double-sided tape with weak adhesive strength may be attached to the upper surface of the double-sided tape. In this case, it is possible to obtain a double-sided adhesive tape that is extremely inexpensive and easily weakened from the adhesive force on the side to be attached to the bottom surface of the housing portion. In addition, although the double-sided adhesive tape is taken as an example of the adhesive member, it is not limited to this, and an adhesive material or another adhesive member may be used.

The second lower case 2 serves to position the optical low-pass filter 4 and has two openings 21 formed on the upper surface. A wide cut 22 is formed in each opening 21 in accordance with a portion where each optical low-pass filter is arranged, and constitutes an accommodating portion for each optical low-pass filter. Further, a locking portion 23 is formed on the inner side of the lower end portion of the second lower case 2, and the lower case is completed by being locked and assembled with the locking portion 12 of the first lower case.

  The upper case 3 has a reverse concave shape that opens downward, and is configured to fit into the assembled lower case.

  The optical low-pass filter 4 (optical device) has, for example, a rectangular parallelepiped shape as a whole and is formed by bonding a plurality of optical plates such as a birefringent plate and a wavelength plate, or a single plate of these, and optical information. A coating film such as a dielectric multilayer film is formed on the main surface on which the light beam including the light enters. In addition, although the optical low-pass filter illustrated the rectangular parallelepiped shape, the thing of other shapes, such as a planar view ellipse shape, may be sufficient.

  Then, the optical low-pass filter 4 is inserted into each housing portion of the lower case 1, and one side surface of the optical low-pass filter is bonded to the double-sided adhesive tape T. Thereafter, the upper case 3 is closed, and cellophane tape or the like is adhered and fixed to the peripheral edges of both cases to complete the packaging. In addition, T2 of FIG. 2 is the adhesive which protruded from the edge part T1 of the double-sided adhesive tape after adhesion fixation. At this time, since the end surface portion T1 of the double-sided adhesive tape is arranged so as to wrap around the bottom surface located below the vertex 111 of the convex portion 11, the adhesive material T2 is provided on one side surface of the optical low-pass filter 4. There is no direct contact. In addition, a portion of the double-sided adhesive tape T below the convex portion 11 that does not come into contact with the optical low-pass filter 4 adsorbs and removes some foreign matter such as resin debris, dust, and dust remaining in the packing case. , It does not reattach to the main surface of the upper optical low-pass filter.

  Next, another embodiment of the present invention will be described with reference to FIGS. Each figure is a cross-sectional view with an optical low-pass filter inserted and the upper case closed. In addition, about the part similar to the said 1st Embodiment, the same number was attached | subjected and some description was omitted.

  The packaging case shown in FIG. 3 (second embodiment) includes a lower case 5 and an upper case 3 that covers the lower case. The lower case 5 has two recesses (openings) 51 formed on the upper surface. In the present embodiment, a double-sided adhesive tape T (adhesive member) wider than the bottom surface of the recess is used, and the double-sided adhesive tape T is attached along the side surface from the bottom surface of the recess. For this reason, since the end T1 of the double-sided adhesive tape is disposed at a position where it does not directly contact one side of the optical low-pass filter 4, the adhesive of the double-sided adhesive tape T may adhere to the side end of the optical low-pass filter. Disappear. Therefore, in the packaging case of the embodiment of FIG. 3, the same effect as in the first embodiment is obtained without forming the convex portion, and the lower case is not divided into two parts. Can be reduced. Further, since the contact area between the double-sided adhesive tape and the optical low-pass filter is increased, the stability during mounting is increased. Since the area where the double-sided adhesive tape and the optical low-pass filter do not come into contact with each other increases, unnecessary foreign matters such as resin debris, dust, and dust can be adsorbed to this area.

  The packaging case shown in FIG. 4 (third embodiment) includes a lower case 5 and an upper case 3 that covers the lower case. The lower case 5 is formed with two recesses (openings) 51 on the upper surface and a convex portion 52 in which the center of the bottom surface of the recess is raised in an arc shape. An adhesive material N is applied to the upper portion of the convex portion 52. At this time, the end portion N1 of the adhesive material is disposed so as to go around from the apex 521 of the convex portion 51 to the lower side. In the packaging case of the embodiment of FIG. 4, an adhesive material is used as an adhesive member instead of a double-sided adhesive tape, and therefore it can be easily provided without being limited by the shape of the convex portion. Further, the excess adhesive that protrudes due to the mounting of the optical low-pass filter does not wrap around the convex portion and adheres to the optical low-pass filter. Moreover, it becomes easy to remove an optical low-pass filter by setting it as the convex-shaped part which protruded in circular arc shape. Furthermore, since it becomes difficult to rub against the inner wall of the case, generation of resin debris, dust and the like can be suppressed.

  The packaging case shown in FIG. 5 (fourth embodiment) includes a lower case 5 and an upper case 3 that covers the lower case. The lower case 5 has two recesses (openings) 51 on the upper surface and a plurality of convex portions 53 on the bottom surface of the recess. In this embodiment, for example, two convex portions 53 and 53 are formed in one recess, and a double-sided adhesive tape T is attached to the upper portions of the convex portions 53 and 53. At this time, the end surface portion T1 of the double-sided adhesive tape is wider than the width of the two convex portions 53, 53, and the upper surface of the two convex portions 53, 53 is laid across the convex portion 53. , 53 are arranged so as to wrap around the bottom surface located below the vertices 531, 531. In addition, about the double-sided adhesive tape T, you may affix along each, without attaching each convex-shaped part 53 horizontally, and may affix individually. In addition, the cross-sectional shape of the convex portion is not limited to a shape having a flat surface at the top, such as a square shape or a trapezoidal shape, and may be a linear shape such as a circular shape, an elliptical shape, a triangular shape, or a dotted shape. Also good. In the packaging case of the embodiment of FIG. 5, the lower case is not divided into two parts as compared with the first embodiment, so that the number of parts of the packaging case can be reduced and a plurality of convex portions are formed. Therefore, stable mounting of the optical device and improvement of cushion performance can be performed.

  FIG. 6A is a plan view of a lower case showing the fifth embodiment, and FIG. 6B is a view of B in a state where an optical low-pass filter is inserted into FIG. 6A and the upper case is closed. It is sectional drawing along the -B line. The packaging case shown in FIG. 6 (fifth embodiment) includes a lower case 5 and an upper case 3 that covers the lower case. The lower case 5 has two recesses (openings) 51 on the upper surface and a plurality of convex portions 54 on the bottom surface of the recess. In this embodiment, the convex part 54 formed smaller than the area of one side of the optical low-pass filter is formed, and the adhesive material N is applied to the upper part of the convex part 54. At this time, the end portion N1 of the adhesive material is formed so as to go downward from the vertex 541 of the convex portion 54. In the packaging case of the embodiment of FIG. 6, since the lower case is not divided into two parts as compared with the first embodiment, the number of parts of the packaging case can be reduced. Since an adhesive material is used as the adhesive member instead of the double-sided adhesive tape, it can be easily provided without being limited by the shape of the convex portion. Further, since the convex portion 54 is formed to be smaller than the area of one side surface of the optical low-pass filter, the adhesive material N does not come into contact with the ridge portion of the optical low-pass filter, and protrudes due to the mounting of the optical low-pass filter. Excess adhesive does not wrap around the main surface of the optical low-pass filter.

  The present invention can be implemented in various other forms without departing from the spirit or containment characteristics thereof, and should not be interpreted in a limited manner. The scope of the present invention is indicated by the claims, and is not limited by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

1 is an exploded perspective view showing a first embodiment of the present invention. Sectional drawing along the AA line of FIG. Sectional drawing which shows 2nd Embodiment Sectional drawing which shows 3rd Embodiment Sectional drawing which shows 4th Embodiment Sectional drawing which shows 5th Embodiment

Explanation of symbols

1, 2, 5 Lower case 3 Upper case 4 Optical device (optical low-pass filter)
T Double-sided adhesive tape N Adhesive

Claims (4)

A packaging case for an optical device comprising a lower case in which an accommodating portion having an upper surface opened is formed, and an upper case covering the optical device housed in the opening of the lower case and the lower case,
An adhesive member for fixing one side surface of the optical device is provided on the bottom surface of the housing portion of the lower case, and an end portion of the adhesive member is disposed at a position where it does not contact one side surface of the optical device. Packaging case for optical devices. A convex portion is formed on the bottom surface of the housing portion of the lower case, and an adhesive member for fixing the optical device is provided on the upper surface of the convex portion, and the adhesive member is fixed to the optical device among the adhesive members. 2. The packaging case for an optical device according to claim 1, wherein the position of the end portion of the region is disposed below the apex of the convex portion. The lower case has a plurality of openings formed with a plurality of openings, and the adhesive member is provided on the bottom surface of each of the storage portions. The packaging case for optical devices as described. 4. The adhesive member according to any one of claims 1 to 3, wherein the adhesive member weakens the adhesive force on the side to be attached to the optical device from the adhesive force to be attached to the bottom surface of the housing portion. The packaging case for optical devices as described.

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