JP2016141472A - Optical component package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical component package which enables improvement of protection performance of an optical function surface when a protection film for protecting the optical function surface is removed.SOLUTION: An optical component package includes: an optical component 11 having an optical function surface 11S that is a surface on which an optical structure is formed and a bonded surface that is a surface positioned at the opposite side of the optical function surface 11S; a first protection film 21 covering an entire body of the optical structure; and a second protection film 31 having a bonding surface 31S to which at least part of the bonded surface is bonded, the bonding surface 31S including an area in which the first protection film is bonded at positions sandwiching the optical component 11 in at least one direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an optical component package including an optical component having an optical functional surface and a protective film for protecting the optical functional surface.

  In the optical component provided in the optical component packaging body described above, the concavo-convex portion in which the fine concavo-convex structure is formed and the non-concavo-convex portion in which the fine concavo-convex structure is not formed are one when viewed from the direction facing the fine concavo-convex structure. Located on the optical function surface. The protective film provided in the optical component package covers the fine concavo-convex structure and is attached to the non-concave part (see, for example, Patent Documents 1 to 3). The protective film attached to the non-concave portion is required not to be peeled off during transportation or storage of the optical component package, but to be easily peeled off when the optical component is used. Therefore, in the optical component package described above, a technique has been proposed in which the adhesion strength of the protective film to the uneven portion is set smaller than the adhesion strength of the protective film to the non-concave portion.

JP 2010-107858 A JP 2010-120348 A JP 2013-130895 A

  However, on one surface of the optical component, since the uneven portion and the non-recessed portion are adjacent to each other, when the protective film is peeled off from the non-recessed portion, the user's finger or the like holding the protective film touches the unevenness. In some cases, the optical function of the uneven portion may be lowered. Therefore, in the optical component package described above, it is desired to enhance the protection of the optical functional surface when removing the protective film for protecting the optical functional surface.

  An object of the present invention is to provide an optical component package that can enhance the protection of an optical functional surface when a protective film for protecting the optical functional surface is removed.

  In order to solve the above problems, an optical component package includes an optical functional surface that is a surface on which an optical structure is formed, and an optical component that is a surface to be adhered that is a surface opposite to the optical functional surface. And a first protective film that covers the entire optical structure, and a surface to which at least a part of the surface to be bonded is attached, and the first protective film is located at a position that sandwiches the optical component in at least one direction. A second protective film having a sticking surface that is a surface to which is attached.

In the optical component package, a gap may be formed between the optical functional surface and the first protective film.
The optical component package may include a spacer that is sandwiched between the first protective film and the second protective film and that forms a gap between the first protective film and the optical functional surface. .
The optical component package includes two spacers, and the two spacers may be disposed so as to sandwich the optical component in at least one direction.

In the optical component package, at least one of the first protective film and the second protective film is a transparent film, and the spacer has an index related to handling of the optical component package, and the index is You may arrange | position in the site | part facing the said transparent film in the surface of the said spacer.
In the optical component package, the index may be a printed matter indicating at least one of a model number of the optical component and a manufacturing lot of the optical component.

  According to the optical component package of the present invention, the protection of the optical functional surface can be enhanced when the protective film for protecting the optical functional surface is removed.

FIG. 1 is a perspective view showing a perspective structure of the optical component package in the first embodiment of the optical component package, and shows an exploded view of the optical component package showing the first protective film and the second protective film apart from each other. It is a perspective view. FIG. 2 is a cross-sectional view showing a cross-sectional structure of the optical component package in the first embodiment. FIG. 3 is a perspective view showing a perspective structure of the optical component package in the second embodiment of the optical component package, and is an exploded view of the optical component package showing the first protective film and the second protective film apart from each other. It is a perspective view. FIG. 4 is a cross-sectional view showing a cross-sectional structure of the optical component package in the second embodiment.

(First embodiment)
The optical component packaging body in 1st Embodiment is demonstrated with reference to FIG. 1 and FIG.
As shown in FIG. 1, the optical component package includes an optical component 11, a first protective film 21, and a second protective film 31. The optical component 11 has an optical function surface 11S and a surface to be pasted that is a surface opposite to the optical function surface 11S. The first protective film 21 has a function of protecting the optical functional surface 11S, and the second protective film 31 has a function of protecting the adherend surface.

  The optical component 11 has a rectangular plate shape. The optical functional surface 11S of the optical component 11 has an optical structure 12 that is a fine concavo-convex structure in a rectangular region with dots in FIG. The portion around the optical structure 12 in the optical function surface 11S is a flat portion that is a region where no irregularities are formed.

  The length of one side of the optical component 11 in the length direction, which is one direction in the optical function surface 11S, is a component length 11W. The thickness of the optical component 11 in the thickness direction, which is a direction orthogonal to the optical functional surface 11S, is a component thickness 11T.

  The first protective film 21 includes one covering portion 22 for protecting the optical structure 12 and two joined ends 23 sandwiching the one covering portion 22 in the length direction described above. One covering portion 22 has a rectangular shape that matches the outer shape of the optical functional surface 11S, has a width equal to the component length 11W in the length direction described above, and covers the entire optical functional surface 11S. Yes. The two bonded ends 23 are portions that are connected to both ends in the length direction of one covering portion 22 and are bent from the covering portion 22.

  A step along the thickness direction of the optical component 11 between the surface facing the optical functional surface 11S in one covering portion 22 and the surface facing the second protective film 31 in each of the two bonded ends 23. A film step 21T is formed. The film level difference 21T is larger than the component thickness 11T described above. The holding of the film level difference 21T in the first protective film 21 is realized by the rigidity of the first protective film 21, in other words, the holding ability of the shape of the first protective film 21.

  The second protective film 31 includes a pasting surface 31 </ b> S that is a surface facing the surface to be pasted of the optical component 11. The part facing the optical component 11 in the affixing surface 31 </ b> S includes a component adhesive layer 32, and further includes two film adhesive layers 33 sandwiching the component adhesive layer 32.

One component adhesive layer 32 has adhesiveness to the surface to which the optical component 11 is applied and adhesiveness to the application surface 31S of the second protective film 31. The adhesiveness of the component adhesive layer 32 to the optical component 11 is lower than the adhesiveness of the component adhesive layer 32 to the second protective film 31. The component adhesive layer 32 affixes the optical component 11 to the affixing surface 31S in a state where the affixing surface 31S of the second protective film 31 can be peeled off from the affixed surface of the optical component 11, and attaches the optical component 11 to the affixing surface 31S. Positioning.
The component adhesive layer 32 only needs to be attached to at least a part of the surface to be bonded of the optical component 11, and may be formed at only one place on the surface to be bonded of the optical component 11 or may be formed at a plurality of locations. May be.

  The two film adhesive layers 33 sandwich the component adhesive layer 32 in the length direction. The distance between the two film adhesive layers 33 in the length direction is the accommodation length 31W. The accommodation length 31 </ b> W is substantially equal to the component length 11 </ b> W described above, and allows the optical component 11 to be disposed between the two film adhesive layers 33. The film adhesive layer 33 has adhesiveness to the bonded end 23 of the first protective film 21 and adhesiveness to the bonding surface 31S of the second protective film 31, and affixes the bonded end 23 of the first protective film 21. Affixed to the surface 31S.

  The optical component 11 is positioned on the affixing surface 31S of the second protective film 31 by the adhesive force of the component adhesive layer 32, and the first protective film 21 and the second protective film 31 are bonded to each other between the bonded portions. It is sandwiched.

  As shown in FIG. 2, a gap having a film step 21 </ b> T is formed between the covering portion 22 and the second protective film 31. As described above, the film level difference 21T is larger than the component thickness 11T that is the thickness of the optical component 11. The surface facing the optical functional surface 11S in the covering portion 22 is separated from the optical functional surface 11S with a gap corresponding to the difference between the film level difference 21T and the component thickness 11T. The holding of the film level difference 21T in the first protective film 21 is realized by the rigidity of the first protective film 21, in other words, the holding ability of the shape of the first protective film 21.

  With the above-described configuration, the joined end 23 is cut off from the optical component packaging body, or the joined end 23 is cut off from the covering portion 22, so that the joining of the covering portion 22 and the second protective film 31 is solved. It is burned. In other words, the covering end portion 23 is cut from the optical component packaging body, or the bonding end 23 is cut off from the covering portion 22 so that the user's finger or the like does not come into contact with the optical function surface 11S. 22 is separated from the second protective film 31. Thereby, the optical functional surface 11S attached to the second protective film 31 can be exposed to the outside. Therefore, when the first protective film 21 for protecting the optical functional surface 11S is removed, the protection of the optical functional surface 11S is enhanced.

  The optical function surface 11 </ b> S is a surface on which an optical function is expressed by the optical structure 12. Examples of the optical function exhibited by the optical structure 12 include at least one of an antireflection function that suppresses reflection of light, a scattering function that scatters light, and a diffraction function that diffracts light.

  The optical structure 12 may be, for example, a periodic structure in which a plurality of convex portions or a plurality of concave portions are periodically repeated, or a plurality of convex portions or a plurality of concave portions arranged in a disorderly manner. It may be a body. The periodic structure is, for example, a Moseye (registered trademark) structure or a plasmonic structure.

  The convex part with which the optical structure 12 is provided is a cone shape, a pyramid shape, a linear protrusion, and a lattice protrusion, for example. The recesses included in the optical structure 12 are, for example, a conical hole, a pyramidal hole, a linear groove, and a lattice-shaped groove.

  In the optical structure 12 having the antireflection function, the average interval between the convex portions or the average interval between the concave portions is, for example, equal to or less than the wavelength of light in the usage environment of the optical component 11. For example, when the object of antireflection is visible light, the average interval between the convex portions or the average interval between the concave portions is equal to or less than the wavelength of visible light. With the optical structure 12 having such a structure, an effective reflection suppressing function is exhibited by continuously increasing the refractive index from the refractive index of air to the refractive index of the material constituting the optical component 11. In the optical structure 12, the average interval between the convex portions is preferably several μm or less, more preferably 550 nm or less, and further preferably 300 nm or less.

  The average interval between the convex portions in the optical structure 12, the average interval between the concave portions in the optical structure 12, and the arrangement of the convex portions or the concave portions in the optical structure 12 are determined based on, for example, a Fourier transform image. A Fourier transform image is obtained from an original image that is a two-dimensional image of the optical functional surface 11S through a two-dimensional fast Fourier transform. The original image of the optical functional surface 11S is an image obtained from a plan view that faces the optical functional surface 11S, and is an image that indicates the size of the step in terms of luminance in a two-dimensional coordinate system in which the optical functional surface 11S extends. . The original image, which is a two-dimensional image of the optical functional surface 11S, is obtained by, for example, measurement using an atomic force microscope, measurement using a scanning electron microscope, or measurement using a contact step meter in a plan view facing the optical functional surface 11S. It is done.

  The original image used for the above-described image processing indicates a rectangular portion that is arbitrarily selected and is a part of the optical functional surface 11S. According to the waveform separation of the original image using the fast Fourier transform, a Fourier transform image based on the original image is obtained, and the distance between the zeroth order peak and the first order peak in the Fourier transform image is obtained. The reciprocal of the distance between the zeroth-order peak and the first-order peak is treated as the average interval between the convex portions or the average interval between the concave portions in one rectangular portion.

  The optical component 11 is a component having a plate shape, the thickness of the optical component 11 is, for example, 0.5 mm or more and 5 mm or less, and the tensile elastic modulus of the optical component 11 is, for example, 0.3 GPa or more. More preferably, it is 1.0 GPa or more. The thickness of the optical component 11 and the tensile modulus of elasticity of the optical component 11 are within a range in which the optical component 11 is not mechanically deformed when the optical component 11 is sandwiched between the first protective film 21 and the second protective film 31. It is.

The thickness which the 1st protective film 21 has is 1 micrometer or more and 0.3 mm or less, for example. The thickness of the first protective film 21 and the tensile elastic modulus of the first protective film 21 are in a range where the optical component 11 is not mechanically deformed, and within the range in which the film level difference 21T can be held. Is appropriately selected. The thickness which the 2nd protective film 31 has is 1 micrometer or more and 0.3 mm or less, for example. The thickness of the second protective film 31 and the tensile modulus of elasticity of the second protective film 31 are also in a range that does not mechanically deform the optical component 11, and from the range in which the film step 21T can be held. It is selected appropriately.
The thickness which the component adhesion layer 32 and the film contact bonding layer 33 have is 1 micrometer or more and 50 micrometers or less, for example.

  The material for forming the optical component 11 is not particularly limited as long as it is a material that exhibits an optical function on the optical function surface 11S. In the optical component 11 that is required to have a scattering function and a diffraction function, a material having a high light transmittance is preferable, and a material having a total light transmittance defined by JIS K 7361-1 of 85% or more is preferably used. High light-transmitting materials include polycarbonate resins, fluorine resins such as polytetrafluoroethylene and polychlorotrifluoroethylene, polyolefin resins including polyethylene resins, polypropylene resins and cyclopolyolefin resins, and polyvinyl chloride. Resin, polyester resin including polyethylene terephthalate resin and polyethylene terephthalate resin, polyvinyl alcohol resin, acrylic resin, styrene-acryl copolymer, styrene-acrylonitrile copolymer, urethane resin, epoxy resin, poly Examples thereof include resins such as ether sulfone resins and polysulfone resins, and glass.

  The material which forms the 1st protective film 21 will not be specifically limited if it is a material which expresses the function which protects the optical function surface 11S. The material which forms the 2nd protective film 31 will not be specifically limited if it is a material which expresses the function which protects a to-be-pasted surface. The material forming the first protective film 21 and the second protective film 31 includes, for example, a polyethylene resin, a polypropylene resin, a polyolefin resin including a cyclopolyolefin resin, a polyethylene terephthalate resin, or a polyethylene naphthalate resin. Examples thereof include polyester resins, polycarbonate resins, polyvinyl alcohol resins, polyvinyl chloride resins, nylon resins, polystyrene resins, and polyacetyl acetate resins. The first protective film 21 may contain a known anti-blocking agent such as silica, an antioxidant, a plasticizer, a lubricant, and an antistatic agent.

  Examples of the adhesive that forms the component adhesive layer 32 and the adhesive that forms the film adhesive layer 33 include, for example, ethylene vinyl acetate copolymer resin, polyester resin, acetate resin, polyethersulfone resin, and polycarbonate resin. Examples thereof include resins, polyamide resins, polyimide resins, polyolefin resins, and acrylic resins. The component adhesive layer 32 may contain an optional component other than the adhesive within a range having a function of bonding the optical component 11 and the second protective film 31. Also in the film adhesive layer 33, an optional component other than the adhesive may be included in a range having a function of bonding the first protective film 21 and the second protective film 31.

As described above, according to the first embodiment, the effects listed below can be obtained.
(1) The covering end is cut without the user's finger or the like coming into contact with the optical function surface 11S by cutting the end 23 to be bonded from the optical component packaging body or by cutting the end 23 to be bonded from the covering portion 22. 22 is separated from the second protective film 31. Therefore, the protection of the optical functional surface 11S is enhanced when the first protective film 21 for protecting the optical functional surface 11S is removed.

  (2) Since a gap is formed between the optical functional surface 11S and the first protective film 21, the first protective film 21 is rubbed against the optical functional surface 11S. As a result, the optical functional surface 11S has an optical property. Deteriorating the function can be suppressed.

(Second Embodiment)
The optical component packaging body in 2nd Embodiment is demonstrated with reference to FIG. 3 and FIG.
In addition, the optical component package in the second embodiment is different from the optical component package in the first embodiment in that it includes a spacer. Below, a spacer is demonstrated in detail and description is abbreviate | omitted regarding the structure similar to the structure which the optical component package of 1st Embodiment has.

  As shown in FIG. 3, the second protective film 31 includes a pasting surface 31 </ b> S that is a surface facing the pasting surface of the optical component 11. A part of the sticking surface 31S facing the optical component 11 includes a part adhesive layer 32, and two spacers 34 sandwiching the part adhesive layer 32 and two film adhesive layers 33 sandwiching the two spacers 34 are provided. Also included.

  The first protective film 21 is a transparent film having transparency. In the first protective film 21, one covering portion 22 has a rectangular shape larger than the outer shape of the optical functional surface 11S, and has a width larger than the component length 11W in the length direction described above. The two bonded ends 23 are portions that are connected to both ends in the length direction of one covering portion 22 and are bent from the covering portion 22.

  The two spacers 34 have a column shape extending along a direction orthogonal to the length direction. The two spacers 34 sandwich the component adhesive layer 32 in the length direction, and are fixed to the attachment surface 31S of the first protective film 21 via an adhesive or the like. The distance between the two spacers 34 in the length direction is the clamping length 34W. The clamping length 34W is substantially equal to the component length 11W described above, and allows the optical component 11 to be disposed between the two spacers 34. Each of the two spacers 34 has a spacer thickness 34T, and the spacer thickness 34T is larger than the above-described component thickness 11T.

  Of the surfaces of each of the two spacers 34, an index related to the handling of the optical component package is attached to the surface facing the covering portion 22. The index regarding the handling of the optical component package is, for example, a printed matter or a cut object, and includes an index 34A used when handling the optical component 11. The indicator 34A used when the optical component 11 is handled is, for example, an arrow indicating a site recommended as the light incident position in the optical component 11. The indicators relating to the handling of the optical component package include an indicator 34A used when the optical component package is transported and stored, in addition to the indicator 34A used when the optical component 11 is handled. The indicator 34B used at the time of transporting or storing the optical component package is, for example, a number or a letter indicating at least one of the model number of the optical component 11 and the production lot of the optical component. The indicator attached to each of the two spacers 34 is visually recognized from the outside of the optical component package through the first protective film 21.

  The two film adhesive layers 33 sandwich the two spacers 34 in the length direction. The distance between the two film adhesive layers 33 in the length direction is larger than the component length 11W and is substantially equal to the distance between the two bonded ends 23 in the length direction. The two film adhesive layers 33 are affixed to the separate bonded ends 23, whereby two spacers 34 and one optical component 11 are interposed between the first protective film 21 and the second protective film 31. It is sandwiched.

  As shown in FIG. 3, the covering portion 22 is supported by two spacers 34, and a gap having a film step 21 </ b> T is formed between the covering portion 22 and the second protective film 31. The film level difference 21T is larger than the component thickness 11T, which is the thickness of the optical component 11, and is maintained at the spacer thickness 34T by the support of the covering portion 22 by the spacer 34. The surface facing the optical functional surface 11S in the covering portion 22 is separated from the optical functional surface 11S with a gap corresponding to the difference between the spacer thickness 34T and the component thickness 11T. The holding of the film level difference 21T in the first protective film 21 is realized by the rigidity of the first protective film 21, in other words, the shape holding ability of the first protective film 21, in addition to the support of the covering portion 22 by the spacer 34. May be.

  The spacer 34 is not limited to a single structure having the entire length of one side of the optical component 11, and may be composed of a plurality of structures arranged along one side of the optical component 11, for example. As the shape of the structure constituting the spacer 34, for example, a rectangular parallelepiped shape, a frustum shape, or a hemispherical shape is used.

  The spacer 34 is, for example, a porous structure formed of polyurethane resin, polyolefin resin, or the like, a rubber structure formed of urethane rubber, natural rubber, silicon rubber, fluorine rubber, polyolefin resin, acrylic resin, or the like. A plastic structure formed from a resin, a polycarbonate resin, or the like, paper, synthetic paper, or non-woven fabric.

As mentioned above, according to the said 2nd Embodiment, in addition to said (1) (2), the effect listed below is acquired.
(3) The size of the gap formed between the covering portion 22 and the second protective film 31 is determined by the spacer 34. Therefore, the reproducibility of the size of the gap between the covering portion 22 and the second protective film 31 and the size of the gap between the covering portion 22 and the optical function surface 11S is enhanced between the optical component packaging bodies.

  (4) Since the two spacers 34 are arranged so as to sandwich the optical component 11, the displacement of the position of the optical component 11 with respect to the first protective film 21 and the second protective film 31 is suppressed.

  (5) Before the covering portion 22 is removed from the second protective film 31, the indicators 34A and 34B relating to the handling of the optical component package are visually recognized through the covering portion 22. Therefore, erroneous handling of the optical component package is suppressed before the covering portion 22 is removed from the second protective film 31.

  (6) Before the covering portion 22 is removed from the second protective film 31, at least one of the model number of the optical component 11 and the production lot of the optical component 11 is grasped by a device or a user who reads them.

In addition, each said embodiment can be changed and implemented as follows.
[Optical component 11]
-At least one part of the to-be-pasted surface in the optical component 11 is not restricted to a flat surface, The uneven | corrugated surface and curved surface which have a level | step difference may be sufficient. For example, the surface to be pasted in the optical component 11 is formed with repeated concaves and convexes having a sufficiently large interval as compared with the optical structure 12. The repetition of the unevenness on the surface to be bonded may be separately provided with an optical function, may be formed due to restrictions in the manufacturing process of the optical component 11, and has an anchor effect on the adhesion with the component adhesive layer 32. A function to enhance may be added.

The optical component 11 is not limited to a rectangular plate shape, but may be a rotating plate shape such as a circular plate shape, a disk shape, or a spheroid shape. Moreover, the optical component 11 may be a laminate including a film having the optical function surface 11S and a substrate that supports the film. In short, the optical component 11 may be a structure including an optical function surface on which an optical structure is formed and a surface to be pasted that is located on the opposite side of the optical function surface.
The optical functional surface 11S of the optical component 11 is not limited to a planar shape, and may be, for example, a curved surface shape or a combination of a planar shape and a curved surface shape.

  The optical functional surface 11S only needs to have the optical structure 12, and the optical structure 12 may extend to a part of the edge of the optical functional surface 11S, or the optical structure 12 is the entire optical functional surface 11S. It may spread to. That is, at least a part of the flat portion may be omitted from the optical function surface 11S.

  In the optical function surface 11S, the tip of the convex portion constituting the optical structure 12 may protrude toward the outside of the optical component 11 rather than the flat portion, or at least one of the tip of the convex portion constituting the optical structure 12 The part may be recessed from the flat part. Moreover, the front-end | tip of all the convex parts which comprise the optical structure 12 may be depressed rather than the flat part.

  -The to-be-sticked surface may have a concavo-convex structure different from the optical structure 12, and may be a surface that expresses an optical function by this concavo-convex structure. At this time, it is preferable that the average interval at which the convex portions are formed and the average interval at which the concave portions are formed in the concavo-convex structure of the adherend surface is sufficiently larger than the optical function surface 11S. Thus, even in the optical component 11 having the concavo-convex structure on both sides, the optical functional surface 11S which is a highly demanded surface to be protected is not a little protected.

[First protective film 21]
The film level difference 21T formed by one covering portion 22 and the two bonded ends 23 may be smaller than the component thickness 11T, for example, the surface facing the optical functional surface 11S in the covering portion 22; The surface facing the second protective film 31 at the bonded end 23 may be flush with the surface. At this time, the affixing surface 31S of the second protective film 31 may be a stepped surface configured such that a gap having a component thickness of 11T or more is formed between one covering portion 22 and the second protective film 31. That's fine. For example, the pasting surface 31S of the second protective film 31 is a stepped surface having a depression having a depth substantially equal to the component thickness 11T as a depression for accommodating the optical component 11, and the depression is provided on the pasting surface 31S. The enclosing edge and the joined end 23 are joined to each other.

  The covering portion 22 may have a shape different from the optical function surface 11S, such as a shape protruding from the optical function surface 11S or a shape having an outer shape smaller than the outer shape of the optical function surface 11S, and at least the optical structure 12 only needs to be covered.

  The bonded end 23 may cover the entire optical structure 12 in the circumferential direction of the optical structure 12 and may be bonded to the second protective film 31 over the entire circumferential direction of the optical structure 12. That is, the length direction described above may be two or more directions different from each other, and the bonded end 23 sandwiches the optical component 11 in at least one direction and is bonded to the second protective film 31. Any configuration can be used.

  In addition, if it is the structure by which the 1st protective film 21 and the 2nd protective film are joined over the whole circumferential direction in the optical structure 12, it will further be suppressed that the optical structure 12 is contaminated with the foreign material from the outside. In addition, if the to-be-joined end 23 is the structure which pinches | interposes the optical component 11 only in one direction, the effort which manufactures an optical component package will be reduced.

  -The 1st protective film 21 may have the light transmittance which permeate | transmits light, and may have the light-shielding property which shields light. Moreover, the 1st protective film 21 may have gas permeability which permeate | transmits a water | moisture content etc., and may have a gas barrier property which interrupt | blocks a water | moisture content etc. Functions other than the protective function provided in the first protective film 21 are appropriately selected from a range suitable for the optical component 11.

[Second protective film 31]
The bonded end 23 and the second protective film 31 in the first protective film 21 are not limited to bonding via the film adhesive layer 33, but may be bonded by welding the bonded end 23 and the second protective film 31. Good. And in the structure by which the 1st protective film 21 and the 2nd protective film 31 are welded over the whole circumferential direction of the optical component 11, holding | maintenance of the film level | step difference 21T in the 1st protective film 21 is the 1st protective film 21. It may be realized by pressure applied to the first protective film 21 by a gas such as air enclosed between the first protective film 31 and the second protective film 31.

  In the second embodiment, the second protective film 31 may be a transparent film, and both the first protective film 21 and the second protective film 31 may be transparent films. In addition, in the structure where the 2nd protective film 31 is a transparent film, it is preferable to have the parameter | index regarding the handling of an optical component packaging body in the surface facing the 2nd protective film 31 in the surface which a spacer has.

  -The 2nd protective film 31 may have the light transmittance which permeate | transmits light, and may have the light-shielding property which shields light. The second protective film 31 may have gas permeability that allows moisture to permeate or may have gas barrier properties that block moisture and the like. Functions other than the protective function provided in the second protective film 31 are appropriately selected from a range suitable for the optical component 11.

[Spacer 34]
The indicators 34A and 34B may be omitted from the spacer 34. At this time, for example, the shape of the spacer 34 may be a shape that functions as an index.

  The position where the spacer 34 is arranged may be, for example, one place around the optical component 11, three or more places, or the whole around the optical component 11.

  The spacer thickness 34T of the spacer 34 may be equal to or less than the component thickness 11T. Even in such a configuration, the spacer 34 has a function of suppressing the displacement of the optical component 11 with respect to the second protective film 31. .

  The spacer 34 may be positioned on the second protective film 31 via an adhesive, and may be positioned on both the first protective film 21 and the second protective film 31 via an adhesive. . Further, when the optical component package includes a plurality of spacers 34, the spacers 34 positioned on the first protective film 21 and the spacers 34 positioned on the second protective film 31 are included in the plurality of spacers 34. Also good.

  The spacer 34 and the optical component 11 may be in contact with each other or may be separated from each other. Further, when the optical component package includes a plurality of spacers 34, the spacers 34 that contact the optical component 11 and the spacers 34 that are separated from the optical component 11 may be included in the plurality of spacers 34.

  DESCRIPTION OF SYMBOLS 11 ... Optical component, 11S ... Optical functional surface, 11T ... Component thickness, 11W ... Component length, 12 ... Optical structure, 21 ... 1st protective film, 21T ... Film level | step difference, 22 ... Cover part, 23 ... Joined end 31 ... 2nd protective film, 31S ... Adhering surface, 31W ... Joining distance, 32 ... Component adhesion layer, 33 ... Film adhesion layer, 34 ... Spacer, 34A, 34B ... Index.

Claims (6)

An optical component having an optical functional surface that is a surface on which an optical structure is formed, and an adherend surface that is a surface located on the opposite side of the optical functional surface;
A first protective film covering the entire optical structure;
A second protection having a pasting surface which is a surface to which at least a part of the surface to be pasted is pasted, and is a surface to which the first protective film is pasted at a position sandwiching the optical component in at least one direction. And an optical component packaging body. The optical component packaging body according to claim 1, wherein a gap is formed between the optical functional surface and the first protective film. The optical component packaging according to claim 1, further comprising a spacer that is sandwiched between the first protective film and the second protective film and that forms a gap between the first protective film and the optical functional surface. body. Two spacers,
The optical component packaging body according to claim 3, wherein the two spacers are arranged so as to sandwich the optical component in at least one direction. At least one of the first protective film and the second protective film is a transparent film,
The spacer has an index related to the handling of the optical component package,
The optical component packaging body according to claim 3 or 4, wherein the index is disposed in a portion of the surface of the spacer facing the transparent film. The optical component package according to claim 5, wherein the index is a printed matter indicating at least one of a model number of the optical component and a manufacturing lot of the optical component.

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