JPH0524889A - Hologram sealed safety glass for automobile - Google Patents
Hologram sealed safety glass for automobileInfo
- Publication number
- JPH0524889A JPH0524889A JP3259614A JP25961491A JPH0524889A JP H0524889 A JPH0524889 A JP H0524889A JP 3259614 A JP3259614 A JP 3259614A JP 25961491 A JP25961491 A JP 25961491A JP H0524889 A JPH0524889 A JP H0524889A
- Authority
- JP
- Japan
- Prior art keywords
- hologram
- synthetic resin
- film
- glass
- plasticizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000005336 safety glass Substances 0.000 title abstract 5
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 36
- 239000000057 synthetic resin Substances 0.000 claims abstract description 36
- 239000011521 glass Substances 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 239000005340 laminated glass Substances 0.000 claims description 24
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract description 7
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 3
- 108010010803 Gelatin Proteins 0.000 abstract description 2
- 239000005329 float glass Substances 0.000 abstract description 2
- 229920000159 gelatin Polymers 0.000 abstract description 2
- 239000008273 gelatin Substances 0.000 abstract description 2
- 235000019322 gelatine Nutrition 0.000 abstract description 2
- 235000011852 gelatine desserts Nutrition 0.000 abstract description 2
- CMMUKUYEPRGBFB-UHFFFAOYSA-L dichromic acid Chemical compound O[Cr](=O)(=O)O[Cr](O)(=O)=O CMMUKUYEPRGBFB-UHFFFAOYSA-L 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001093 holography Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- JEYLQCXBYFQJRO-UHFFFAOYSA-N 2-[2-[2-(2-ethylbutanoyloxy)ethoxy]ethoxy]ethyl 2-ethylbutanoate Chemical compound CCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CC JEYLQCXBYFQJRO-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- HHECSPXBQJHZAF-UHFFFAOYSA-N dihexyl hexanedioate Chemical compound CCCCCCOC(=O)CCCCC(=O)OCCCCCC HHECSPXBQJHZAF-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- MNWFXJYAOYHMED-UHFFFAOYSA-N heptanoic acid Chemical compound CCCCCCC(O)=O MNWFXJYAOYHMED-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Instrument Panels (AREA)
- Joining Of Glass To Other Materials (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Holo Graphy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用のヘッドアッ
プディスプレイのコンバイナ等に用いるホログラムが封
入された合せガラスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated glass containing a hologram used for a combiner of a head-up display for automobiles.
【０００２】[0002]
【従来の技術】自動車用のヘッドアップディスプレイな
どの車内表示方式として、或は防眩装置として、その他
ハイマウントストップランプ等の装置として、ホログラ
フィを利用したものが近年注目されている。このような
ホログラフィを利用した表示装置を構成する際に必要な
ホログラムはその用途に応じて様々な場所に配置される
が、場所をとらないことから、フロントガラス、リヤガ
ラス等に貼り合せたり、組み込んで使用することが多
い。例えば、自動車用のヘッドアップディスプレイにお
いては、コンバイナとしてフロントガラスの所定位置に
ホログラムを配置して使用する。2. Description of the Related Art In recent years, holography has been attracting attention as an in-vehicle display system such as a head-up display for automobiles, as an antiglare device, and as a device such as a high mount stop lamp. Holograms necessary for constructing a display device using such holography are placed in various places according to the application, but because they do not take up space, they are attached to the windshield, rear glass, etc., or incorporated. Often used in. For example, in a head-up display for an automobile, a hologram is arranged and used as a combiner at a predetermined position on the windshield.
【０００３】このような場合、ホログラムは、フロント
ガラスに直接貼られても良いが、ホログラムは通常きわ
めて耐摩耗性の低いものなので、その保護のため、フロ
ントガラスを合せガラスとし、その合せ構造の内部に封
入して用いることが多い。In such a case, the hologram may be directly attached to the windshield, but since the hologram usually has extremely low abrasion resistance, the windshield is made of laminated glass to protect the hologram, and the hologram has a laminated structure. Often enclosed and used.
【０００４】かかるホログラム封入合せガラスにおい
て、通常は、２枚のガラス板の間に接着剤たる合成樹脂
膜（合せ中間膜）と一緒にホログラムを封入する構造と
するのが一般的である。合成樹脂膜としては、通常の合
せガラスと同様に、ポリビニルブチラール（ＰＶＢ）の
膜を用い、ホログラムとともに２枚の合せガラスの間に
積層し、ローラによる加圧等により予備圧着し、その
後、１３０℃程度に加温、及び加圧して本圧着して製造
していた。In such a hologram-encapsulated laminated glass, it is common to have a structure in which a hologram is enclosed between two glass plates together with a synthetic resin film (bonding intermediate film) as an adhesive. As the synthetic resin film, a polyvinyl butyral (PVB) film is used as in the case of ordinary laminated glass, laminated between two laminated glasses together with a hologram, and pre-pressed by pressing with a roller or the like. It was manufactured by heating and pressurizing to about 0 ° C. and then main compression bonding.
【０００５】[0005]
【発明が解決しようとする課題】しかしこの方法におい
ては、ホログラムと合成樹脂膜とが直接接触していた。
このため、合成樹脂膜に含まれる化学物質、例えばＰＶ
Ｂの可塑剤（テトラエチレングリコール・ｎ−ヘプタネ
ート、ジ（ｎ−ヘキシル）アジペート、トリエチレング
リコール ジ （２−エチルブチレート）等）の影響で
ホログラムの干渉縞間隔等の特性が変化し、設計通りの
値にならないうえ、特性の経時変化を生じやすいという
問題点を有する。この経時変化は、大きなものでは月に
１０ｎｍにもなることがあり、回折光の色ずれのみなら
ず、回折角も大きくずれてしまう欠点があった。However, in this method, the hologram and the synthetic resin film are in direct contact with each other.
Therefore, chemical substances contained in the synthetic resin film, such as PV
Due to the influence of the plasticizer B (tetraethylene glycol / n-heptanate, di (n-hexyl) adipate, triethylene glycol di (2-ethylbutyrate), etc.), the characteristics such as the interference fringe spacing of the hologram change and the design There is a problem that the values do not become exactly the same and the characteristics tend to change over time. This change with time may be as large as 10 nm per month, and there is a drawback that not only the color shift of diffracted light but also the diffraction angle shifts greatly.
【０００６】また、通常、圧着しやすくするため合成樹
脂膜にエンボスを設けているが、そのエンボスによりホ
ログラム表面が荒れてクリアな像が得られないという欠
点もあった。[0006] Further, usually, the synthetic resin film is provided with an emboss for facilitating pressure bonding, but there is also a drawback that the hologram surface is roughened by the emboss and a clear image cannot be obtained.
【０００７】[0007]
【課題を解決するための手段】本発明は前述の課題を解
決するためになされたものであり、少なくとも１枚のガ
ラス板に可塑剤を含む合成樹脂膜を積層した合せガラス
の内部にホログラムを封入してなる自動車用ホログラム
封入合せガラスであって、車内側から、ガラス板／ホロ
グラム／前記可塑剤を含まず、合成樹脂膜中の可塑剤の
ホログラム中への侵入を抑えるバリヤフィルム／合成樹
脂膜の順に積層された構造を有することを特徴とする自
動車用ホログラム封入合せガラスを提供するものであ
る。The present invention has been made to solve the above-mentioned problems, and a hologram is formed inside a laminated glass in which a synthetic resin film containing a plasticizer is laminated on at least one glass plate. A laminated glass for enclosing a hologram for automobiles, which is a barrier film / synthetic resin that does not contain a glass plate / hologram / plasticizer from the inside of the vehicle to prevent the plasticizer in the synthetic resin film from entering the hologram. A hologram-encapsulated laminated glass for automobiles having a structure in which films are laminated in this order.
【０００８】本発明においていう合せガラスとは、少な
くとも１枚のガラス板に可塑剤を含む合成樹脂膜を積
層、接着したものであり、その形態の例としては、ガラ
ス／合成樹脂膜、ガラス／合成樹脂膜／ガラス、ガラス
／合成樹脂膜／ガラス／合成樹脂膜、ガラス／合成樹脂
膜／合成樹脂膜等の構成のものがある。The laminated glass referred to in the present invention is one in which a synthetic resin film containing a plasticizer is laminated and adhered to at least one glass plate, and examples of its form include glass / synthetic resin film and glass / Synthetic resin film / glass, glass / synthetic resin film / glass / synthetic resin film, glass / synthetic resin film / synthetic resin film and the like are available.
【０００９】本発明の合成樹脂膜の巾は、その主な用途
である自動車用窓材の大きさにより、好ましくは50cm以
上である。巾の上限は特にはないが、通常約２ｍであ
る。また膜の厚さは0.04〜４mm、特に0.05〜２mmが好ま
しい。The width of the synthetic resin film of the present invention is preferably 50 cm or more depending on the size of the window material for automobiles, which is the main use of the synthetic resin film. There is no particular upper limit on the width, but it is usually about 2 m. The thickness of the film is preferably 0.04 to 4 mm, particularly preferably 0.05 to 2 mm.
【００１０】本発明に係るホログラム封入合せガラスに
ついてその例をガラス／合成樹脂膜／ガラスの場合の断
面図として図１に示した。１はホログラム、２は可塑剤
を含む合成樹脂膜、３はガラス板、４はバリヤフィル
ム、５は車外側方向を示す矢印である。An example of a hologram-encapsulated laminated glass according to the present invention is shown in FIG. 1 as a sectional view in the case of glass / synthetic resin film / glass. Reference numeral 1 is a hologram, 2 is a synthetic resin film containing a plasticizer, 3 is a glass plate, 4 is a barrier film, and 5 is an arrow indicating the vehicle outer direction.
【００１１】上記合成樹脂膜としては、ポリビニルブチ
ラール合成樹脂膜が適当である。また、使用するホログ
ラム材料は、例えばポリビニルカルバゾール、重クロム
酸ゼラチン、光レジスト、フォトポリマー等を用いるこ
とができる。また、ホログラムの種類としては、現在広
く使われているエンボスタイプだけでなく、リップマン
タイプ、レインボータイプ、その他ホログラムと呼ばれ
るものに対して広く用いることができる。As the synthetic resin film, a polyvinyl butyral synthetic resin film is suitable. The hologram material used may be, for example, polyvinylcarbazole, dichromated gelatin, photoresist, photopolymer, or the like. Further, as the type of hologram, not only the emboss type which is widely used at present, but also the Lippmann type, the rainbow type, and other holograms can be widely used.
【００１２】本発明に用いるバリヤフィルムの材料とし
ては、ポリビニルアルコール系、ポリエチレンテレフタ
レート（ＰＥＴ）、塩化ビニル系のものが使用できる
が、熱収縮が一様で、かつ少なく、等方伸展のものが好
ましい。特に100 ℃加熱時の収縮率が２〜５％以下のも
のがホログラムに熱歪を生じさせずに好ましい。特に使
用したホログラムと同じような収縮をするように伸展率
を調整しておくと、ホログラムの回折格子がバリヤフィ
ルムとの間の熱収縮差を原因とする歪を生じにくく、大
変望ましい。As the material of the barrier film used in the present invention, polyvinyl alcohol type, polyethylene terephthalate (PET) and vinyl chloride type materials can be used, but those having uniform heat shrinkage and little isotropic extension are usable. preferable. Particularly, those having a shrinkage factor of 2 to 5% or less when heated at 100 ° C. are preferable because they do not cause thermal distortion in the hologram. Particularly, it is very desirable to adjust the expansion rate so as to cause the same contraction as that of the hologram used, because the diffraction grating of the hologram hardly causes distortion due to the difference in thermal contraction with the barrier film.
【００１３】また、用いたバリヤフィルムとホログラム
の収縮を一致できない場合には、ホログラムの周辺に５
〜15mm程度の幅の未露光の部分を形成しておくと熱歪が
露光部内まで進行せず、均一なホログラムのまま封入す
ることができる。この様子を示したのが図２であり、５
はホログラムの露光部、６はホログラムの未露光部であ
る。また露光部と未露光部の境界がはっきりしすぎた
り、逆に露光時のマスキングが悪く見切線がきれいに見
えない場合などは、ホログラムを露光する際に周辺部は
四角又は丸のドットパターンで露光し、周辺にいくほど
そのパターンを細く、または小さくしていけば見切線が
目立たなくなり、好ましい。If the barrier film used and the contraction of the hologram cannot be matched with each other, the area around the hologram is
If an unexposed portion having a width of about 15 mm is formed, thermal distortion does not proceed to the exposed portion, and a uniform hologram can be enclosed. This is shown in FIG. 2, which shows 5
Is an exposed portion of the hologram, and 6 is an unexposed portion of the hologram. Also, if the boundary between the exposed and unexposed areas is too clear, or conversely the masking during exposure is poor and the parting line is not clearly visible, the peripheral area is exposed with a square or circular dot pattern when exposing the hologram. However, if the pattern is made thinner or smaller toward the periphery, the parting line becomes less noticeable, which is preferable.
【００１４】また、使用するバリヤフィルムの大きさは
ホログラムよりも全周にわたって０〜10mm、好ましくは
２〜５mm大きいことが望ましい。こうすると、ホログラ
ム全面を覆い、合成樹脂膜の可塑剤の侵入を防ぐことが
できる上、バリヤフィルムをホログラム上にのせ易い利
点がある。またその厚みとしては、厚いと端部の見切り
が目立つので、ホログラムとバリヤフィルムとを合わせ
た総厚としては50μm以下が好ましく、さらに透視歪の
点からいえば25μm 以下が望ましい。Further, it is desirable that the size of the barrier film used is larger than the hologram by 0 to 10 mm, preferably 2 to 5 mm over the entire circumference. This has the advantage that the entire surface of the hologram can be covered and the plasticizer in the synthetic resin film can be prevented from entering, and the barrier film can be easily placed on the hologram. If the thickness is large, the end parting is conspicuous. Therefore, the total thickness of the hologram and the barrier film is preferably 50 μm or less, and more preferably 25 μm or less from the perspective of perspective distortion.
【００１５】かかるホログラム封入合せガラスの製造方
法については、車内側ガラス板３ａの所定の場所にホロ
グラム１を積層あるいは接着し、バリヤフィルム４を重
ねて必要に応じて圧着し、更に合成樹脂膜たるＰＶＢ膜
等及び、車外側のガラス板３ｂを重ねて積層体とし、こ
の積層体を圧着袋に入れて脱気又は必要に応じて加熱し
て予備圧着し、次いで圧着袋から取り出して、あるいは
圧着袋のままオートクレーブに入れて加温、加圧して熱
圧着する方法が代表的な方法として挙げられる。ここで
オートクレーブでの接着条件は８〜15気圧、110℃〜 15
0℃、30分〜60分程度である。無論これに限らずその他
代表的なガラスの圧着方法も同様に利用できる。Regarding the method of manufacturing such a hologram-encapsulated laminated glass, the hologram 1 is laminated or adhered at a predetermined position on the vehicle interior glass plate 3a, the barrier film 4 is overlapped and pressure-bonded if necessary, and further a synthetic resin film is formed. A PVB film or the like and the glass plate 3b on the outside of the vehicle are stacked to form a laminated body, and the laminated body is put in a crimping bag and deaerated or preheated by heating if necessary, and then taken out from the crimping bag or crimped. A typical method is to put the bag in an autoclave as it is, heat it, pressurize it, and perform thermocompression bonding. Here, the adhesive conditions in the autoclave are 8 to 15 atm and 110 ° C to 15 atm.
It is about 0 to 30 minutes to 60 minutes. Of course, the present invention is not limited to this, and other typical glass pressure bonding methods can be similarly used.
【００１６】本発明のホログラム封入合せガラスにおい
ては、車内側からガラス板／ホログラム／バリヤフィル
ム／合成樹脂膜の順に積層している。ＰＶＢ等の合成樹
脂膜は紫外線吸収能を有するので、このようにすると、
車外からの紫外線光が合成樹脂膜で吸収され、ホログラ
ムに直接照射されることを防ぐことが可能となる。従っ
て、ホログラムの損傷を抑え、高寿命化することができ
る。In the hologram-encapsulated laminated glass of the present invention, the glass plate / hologram / barrier film / synthetic resin film are laminated in this order from the inside of the vehicle. Since a synthetic resin film such as PVB has the ability to absorb ultraviolet rays,
It is possible to prevent the ultraviolet light from the outside of the vehicle from being absorbed by the synthetic resin film and directly illuminating the hologram. Therefore, the hologram can be prevented from being damaged and the life can be extended.
【００１７】[0017]
（実施例１）所定の形状に切断、面取りした 2mm厚の通
常のフロートガラス板を２枚用意し、この表面を酸化セ
リウムで研磨後、純粋で充分にすすぎ、窒素ガスを吹き
付けて乾燥させた。また、ホログラムとして周辺10mmの
未露光部を有するように露光した50mm角のフォトポリマ
ーを用意した。(Example 1) Two ordinary 2 mm thick float glass plates cut into a predetermined shape and chamfered were prepared, the surfaces were polished with cerium oxide, rinsed thoroughly with pure nitrogen gas, and dried by blowing nitrogen gas. .. As a hologram, a 50 mm square photopolymer exposed so as to have an unexposed area of 10 mm in the periphery was prepared.
【００１８】これらの２枚のガラス板を曲げ加工を施し
て自動車用フロントガラスの内板、外板とし、ブラシ洗
浄、乾燥した後、車内側のガラス板の表面にシランカッ
プリング剤を塗工したホログラムをガラス板に空気残り
のないようにローラー圧着した。After bending these two glass plates into an inner plate and an outer plate of an automobile windshield, washing with a brush and drying, a silane coupling agent is applied to the surface of the glass plate inside the vehicle. The hologram thus prepared was roller-pressed onto a glass plate so that no air remained.
【００１９】その上に全周にわたってフォトポリマーフ
ィルムより５mm大きくカッティングした無延伸ポリビニ
ルアルコール（ＰＶＡ）フィルムからなる15μm 厚のバ
リヤフィルムをローラーを用いて貼り付けた。なお、こ
の時にフォトポリマーとＰＶＡとの接着力が悪い場合に
はガラスを50℃程度にプレヒートさせておくか、または
可塑剤を含まない光学接着剤を用いて貼り付けることが
できる。A barrier film having a thickness of 15 μm and made of a non-stretched polyvinyl alcohol (PVA) film, which was cut by 5 mm larger than the photopolymer film over the entire circumference, was attached thereon by using a roller. At this time, when the adhesive force between the photopolymer and PVA is poor, the glass can be preheated to about 50 ° C. or can be attached by using an optical adhesive containing no plasticizer.
【００２０】この後、バリヤフィルムを貼りつけた上
に、10〜20μm のエンボス加工を施した 0.8mm厚のＰＶ
Ｂ膜及び車外側のガラス板を積層して積層体を形成し、
次いでこれを気密袋に入れて、１torrまでその中を脱気
し、その後オートクレーブに入れ、10気圧、130℃、50
分間で本圧着を行なった。でき上がったホログラム封入
合せガラスはホログラムの再生波長、半値幅、回折効率
の経時変化の少ない、良好なものであった。After this, a 0.8 mm thick PV film is applied with a barrier film and embossed with a thickness of 10 to 20 μm.
The B film and the glass plate on the outside of the vehicle are laminated to form a laminated body,
Then put this in an airtight bag, degas it until 1 torr, then put it in an autoclave at 10 atm, 130 ° C, 50
The main compression bonding was performed for a minute. The resulting laminated glass containing hologram was good with little change in hologram reproduction wavelength, full width at half maximum, and diffraction efficiency over time.
【００２１】このホログラム封入合せガラスと、バリヤ
フィルムを含まず、中間膜としてＰＶＢ膜を用いた従来
のホログラム封入合せガラスについて、積層、接着後の
ホログラムの再生波長のズレを示したグラフが図３であ
る。図で横軸は積層、接着後の時間、縦軸は再生波長の
ズレである。バリヤフィルムの存在によって、再生波長
のズレが抑えられていることがわかる。FIG. 3 is a graph showing the reproduction wavelength deviation of the hologram after lamination and adhesion between this hologram-encapsulated laminated glass and a conventional hologram-encapsulated laminated glass that does not include a barrier film and uses a PVB film as an intermediate film. Is. In the figure, the horizontal axis represents the time after lamination and adhesion, and the vertical axis represents the deviation of the reproduction wavelength. It can be seen that the existence of the barrier film suppresses the reproduction wavelength shift.
【００２２】（実施例２）バリヤフィルムとしてＰＶＡ
膜ではなく可塑剤を含まない塩化ビニル膜を用いて実施
例１と同様の工程を経て合せガラスを作製し、実施例１
とほぼ同様の効果が得られた。(Example 2) PVA as a barrier film
A laminated glass was prepared through the same steps as in Example 1 using a vinyl chloride film containing no plasticizer instead of a film.
Almost the same effect was obtained.
【００２３】[0023]
【発明の効果】本発明によれば、合成樹脂膜に含まれて
いる可塑剤等を原因とするホログラムの再生波長、半値
幅、回折効率の経時変化を低減することができ、しかも
材質の軟いホログラムを用いた場合であっても中間膜の
エンボスによってホログラムの表面に生じる凹凸もへら
せることから、非常にクリアな再生像が得られる。EFFECTS OF THE INVENTION According to the present invention, it is possible to reduce changes in hologram reproduction wavelength, full width at half maximum, and diffraction efficiency due to the plasticizer contained in the synthetic resin film and the like. Even when a large hologram is used, the unevenness generated on the surface of the hologram is also reduced by embossing the intermediate film, so that a very clear reproduced image can be obtained.
【００２４】また、本発明においてはホログラムは合せ
ガラス内の最も車内側に配置される。ホログラムより視
界側にガラス板等の透明層が重なると、反射像が何重に
も見え、見栄えが悪くなることがある。本発明によれ
ば、かかる反射像の発生も抑えることができ、コンバイ
ナーとして使用して見栄えの良いホログラム封入合せガ
ラスが得られる効果もある。Further, in the present invention, the hologram is arranged at the innermost side in the laminated glass. When a transparent layer such as a glass plate is overlaid on the field of view side of the hologram, the reflected image may be seen in multiple layers and the appearance may be poor. According to the present invention, it is possible to suppress the occurrence of such a reflected image, and it is also possible to obtain a hologram-encapsulated laminated glass that is used as a combiner and has a good appearance.
【図１】本発明のホログラム封入合せガラスの断面図FIG. 1 is a sectional view of a hologram-encapsulated laminated glass of the present invention.
【図２】本発明のホログラム封入合せガラスの平面図FIG. 2 is a plan view of a hologram-encapsulated laminated glass of the present invention.
【図３】本発明と従来のホログラム封入合せガラスにお
けるホログラムの再生波長の経時変化を示すグラフFIG. 3 is a graph showing changes over time in the reproduction wavelength of a hologram in the present invention and a conventional hologram-encapsulated laminated glass.
１：ホログラム ２：合成樹脂膜 ３ａ，３ｂ：ガラス板 ４：バリヤフィルム ５：ホログラムの露光部 ６：ホログラムの未露光部 1: Hologram 2: Synthetic resin film 3a, 3b: Glass plate 4: Barrier film 5: Exposed part of hologram 6: Unexposed part of hologram
Claims (1)
合成樹脂膜を積層した合せガラスの内部にホログラムを
封入してなる自動車用ホログラム封入合せガラスであっ
て、車内側から、ガラス板／ホログラム／前記可塑剤を
含まず、合成樹脂膜中の可塑剤のホログラム中への侵入
を抑えるバリヤフィルム／合成樹脂膜の順に積層された
構造を有することを特徴とする自動車用ホログラム封入
合せガラス。Claim: What is claimed is: 1. A hologram-encapsulated laminated glass for an automobile, wherein a hologram is enclosed inside a laminated glass in which a synthetic resin film containing a plasticizer is laminated on at least one glass plate. An automobile characterized by having a structure in which a glass plate / hologram / a barrier film / synthetic resin film are laminated in this order from the inside without containing a glass plate / hologram / plasticizer to suppress entry of the plasticizer in the synthetic resin film into the hologram. Laminated glass for hologram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25961491A JP3264681B2 (en) | 1990-09-11 | 1991-09-11 | Automotive hologram-sealed laminated glass |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23902390 | 1990-09-11 | ||
| JP2-239023 | 1990-09-11 | ||
| JP25961491A JP3264681B2 (en) | 1990-09-11 | 1991-09-11 | Automotive hologram-sealed laminated glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0524889A true JPH0524889A (en) | 1993-02-02 |
| JP3264681B2 JP3264681B2 (en) | 2002-03-11 |
Family
ID=26534038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25961491A Expired - Lifetime JP3264681B2 (en) | 1990-09-11 | 1991-09-11 | Automotive hologram-sealed laminated glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3264681B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025409A1 (en) * | 1993-04-30 | 1994-11-10 | Dening Yang | Glass having a holographic grating pattern and a single pure metal membrane |
| JPH07270615A (en) * | 1994-03-31 | 1995-10-20 | Central Glass Co Ltd | Holographic laminated body |
| JP2007163953A (en) * | 2005-12-15 | 2007-06-28 | Konica Minolta Photo Imaging Inc | Prism and method for manufacturing prism |
| JP2008020770A (en) * | 2006-07-14 | 2008-01-31 | Sony Corp | Diffraction grating member, optical device and image display apparatus |
| WO2017130997A1 (en) * | 2016-01-29 | 2017-08-03 | コニカミノルタ株式会社 | Optical element manufacturing method |
| WO2021041635A1 (en) * | 2019-08-30 | 2021-03-04 | Carlex Glass America, Llc | Laminated glazing having holographic film and method for producing a laminated glazing |
-
1991
- 1991-09-11 JP JP25961491A patent/JP3264681B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025409A1 (en) * | 1993-04-30 | 1994-11-10 | Dening Yang | Glass having a holographic grating pattern and a single pure metal membrane |
| JPH07270615A (en) * | 1994-03-31 | 1995-10-20 | Central Glass Co Ltd | Holographic laminated body |
| JP2007163953A (en) * | 2005-12-15 | 2007-06-28 | Konica Minolta Photo Imaging Inc | Prism and method for manufacturing prism |
| JP2008020770A (en) * | 2006-07-14 | 2008-01-31 | Sony Corp | Diffraction grating member, optical device and image display apparatus |
| WO2017130997A1 (en) * | 2016-01-29 | 2017-08-03 | コニカミノルタ株式会社 | Optical element manufacturing method |
| WO2021041635A1 (en) * | 2019-08-30 | 2021-03-04 | Carlex Glass America, Llc | Laminated glazing having holographic film and method for producing a laminated glazing |
| CN114340895A (en) * | 2019-08-30 | 2022-04-12 | 中央硝子株式会社 | Laminated glass with holographic film and method for producing laminated glass |
| US20220324205A1 (en) * | 2019-08-30 | 2022-10-13 | Central Glass Company, Limited | Laminated glazing having holographic film and method for producing a laminated glazing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3264681B2 (en) | 2002-03-11 |
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