JP2002505762A - 梨地加工された再帰反射プリズムの構造およびその成形型 - Google Patents
梨地加工された再帰反射プリズムの構造およびその成形型Info
- Publication number
- JP2002505762A JP2002505762A JP50465999A JP50465999A JP2002505762A JP 2002505762 A JP2002505762 A JP 2002505762A JP 50465999 A JP50465999 A JP 50465999A JP 50465999 A JP50465999 A JP 50465999A JP 2002505762 A JP2002505762 A JP 2002505762A
- Authority
- JP
- Japan
- Prior art keywords
- prism
- mold
- sheet
- forming
- retroreflective sheet
- 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.)
- Ceased
Links
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- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- MUTNCGKQJGXKEM-UHFFFAOYSA-N tamibarotene Chemical compound C=1C=C2C(C)(C)CCC(C)(C)C2=CC=1NC(=O)C1=CC=C(C(O)=O)C=C1 MUTNCGKQJGXKEM-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
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- 229910052718 tin Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
- G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.プリズム対で形成される反射プリズムアレーから構成される逆反射シートで あって、 各プリズムはベース開口および頂点で交わる3つの交差側面を持ち、前記プリ ズム対のいくつかの内の少なくとも1つは、実質的にランダムな梨地加工された 表面の部分を少なくとも1つ有する成形型で形成され、さらにその梨地は前記開 口に比べて十分小さくて、開口に入射する光を散乱して逆反射回析パターンを変 化させてシートの白色度特性を強化し、遠領域の光パターン強度を均一化する、 逆反射シート。 2.請求項1において、対のプリズムの一つが他のプリズムより高さが低く、窓 がその低いプリズムに形成されている逆反射シート。 3.請求項1において、前記窓が前記小さいプリズムの面から隣接プリズム方向 に延びる面で構成されている逆反射シート。 4.請求項1において、前記プリズム対が誘電体材料から成り、ゼロよりも大き く10度以下の範囲の傾斜角βで逆方向に傾斜している逆反射シート。 5.請求項1において、前記小さいプリズムが約35.0ミクロンから8.0ミ クロンの範囲の開口サイズを有する逆反射シート。 6.請求項2において、前記梨地が窓に形成されている逆反射シート。 7.請求項1において、前記梨地がエッチングにより形成されてい逆反射るシー ト。 8.成形型によって誘電体材料製のプリズム対に形成された反射プリズムアレー から構成され、その中のプリズムはベース面と頂点で交わる3つの交差側面とを 有し、形成された交差側面は前記プリズムで逆反射した光を偏向させるための光 散乱梨地を有する、逆反射シート。 9.請求項8において、前記梨地がエッチングで除去するフォトレジストを用い て形成される、逆反射シート。 10.成形型によって誘電体材料製のプリズム対で形成された反射プリズムアレ ーから構成され、その中の前記プリズムはベース面と頂点で交わる3つの交差側 面とを有し、ランダムに形成された光散乱梨地を有するフラット窓が、前記形成 されたプリズム対の間に設けられている、逆反射シート。 11.請求項10において、前記梨地がフォトレジストのエッチングにより成形 型の中で形成される、逆反射シート。 12.請求項10において、前記梨地が前記プリズムの開口に比較して充分小さ く、その結果前記プリズムから逆反射する光の領域内の強度パターンを均一にす る、逆反射シート。 13.逆反射シートを形成する方法であって、 a)成形型を製作するのに、 (i)成形型材料の本体の中に3組の平行な溝を形成し、さらにその溝が角度 を持って交差して複数のプリズムを形成し、その中の各プリズムはベース面と頂 点で交わる3つの交差側面とを有し、 (ii)プリズムの少なくとも1つの面の一部を除去することにより、大きなサ イズのプリズムに隣接して小さいサイズのプリズムを形成し、両者の間に窓表面 を形成し、 b)前記プリズム面と窓の表面を梨地加工し、 c)前記成形型で前記シートを形成し、 d)前記成形型から前記シートを取出す、 工程群を備えた逆反射シートを形成する方法。 14.請求項13において、前記プリズムは対に形成され、そのプリズムが傾斜 した光学軸を有する逆反射シートを形成する方法。 15.請求項13において、前記取出す工程d)がフライカッティングを備えた 逆反射シートを形成する方法。 16.請求項13において、ビームが傾斜した光軸を有する逆反射シートを形成 する方法。 17.請求項13の方法で形成された逆反射シート。 18.請求項13において、前記シートのプリズム面側を金属被覆する工程を含 む逆反射シートを形成する方法。。 19.請求項13において、前記プリズム反射面が金属被覆されている逆反射シ ート。 20.逆反射シートを形成する方法が、 a)成形型材料の本体に3組の平行な溝を有する成形型を形成し、さらにその 溝が角度を持って交差して複数のプリズムを形成し、各プリズムがベース面と頂 点で交わる3つの交差側面とを有し、 b)前記プリズム面の表面の少なくとも一部に梨地加工を施し、 c)前記成形型で前記シートを形成し、 d)前記シートを前記成形型から取外す、 工程群を備えた逆反射シートを形成する方法。 21.請求項20において、前記プリズム面の表面を梨地加工する工程が、 a)前記プリズム面にフォトレジスト層をコーティングし、 b)前記フォトレジストを露光して実質的にランダムな斑点パターンを得て、 c)前記露光したフォトレジストを現像し、現像されたフォトレジストを除去 し、 d)前記斑点パターンの領域で成形型をエッチングする、 工程群を備えた逆反射シートを形成する方法。 22.請求項20において、前記プリズム面の表面を梨地加工する工程が、 a)前記プリズム面にフォトレジスト層をコーティングし、 b)前記フォトレジストを露光して実質的にランダムな斑点パターンを得て、 c)前記露光したフォトレジストを現像し、現像されたフォトレジス トを除去し、 d)前記フォトレジストが除去された場所に形成された前記斑点パターンの領 域で成形型をエッチングし、 e)工程(d)で形成された成形型内で金属成形型を鋳造し、前記梨地を有す る新しい成形型を形成する、 工程群を備えた逆反射シートを形成する方法。 23.請求項21において、前記ランダム斑点パターンが拡散スクリーンをコヒ ーレント光の平面波を照明して形成される、逆反射シートを形成する方法。 24.請求項21において、前記パターンを非対称としている、逆反射シートを 形成する方法。 25.請求項23において、前記コヒーレント光が前記拡散スクリーン上で走査 される、逆反射シートを形成する方法。 26.請求項25において、前記コヒーレント光が距離Woを隔てて配列された 連続線に沿って速度δで走査されるものであり、ここで、δmaxが約80mm/ 秒であり、Woは約0.5mmである、逆反射シートを形成する方法。
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| US08/883,329 | 1997-06-25 | ||
| US08/883,329 US6258443B1 (en) | 1994-09-28 | 1997-06-25 | Textured retroreflective prism structures and molds for forming same |
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| Publication Number | Publication Date |
|---|---|
| JP2002505762A true JP2002505762A (ja) | 2002-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50465999A Ceased JP2002505762A (ja) | 1997-06-25 | 1998-06-16 | 梨地加工された再帰反射プリズムの構造およびその成形型 |
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| Country | Link |
|---|---|
| US (2) | US6258443B1 (ja) |
| EP (1) | EP0991964B1 (ja) |
| JP (1) | JP2002505762A (ja) |
| CN (1) | CN1152268C (ja) |
| AU (1) | AU7969398A (ja) |
| DE (1) | DE69807227T2 (ja) |
| TW (1) | TW396281B (ja) |
| WO (1) | WO1998059266A1 (ja) |
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1998
- 1998-06-16 WO PCT/US1998/012476 patent/WO1998059266A1/en active IP Right Grant
- 1998-06-16 JP JP50465999A patent/JP2002505762A/ja not_active Ceased
- 1998-06-16 CN CNB988065355A patent/CN1152268C/zh not_active Expired - Fee Related
- 1998-06-16 DE DE69807227T patent/DE69807227T2/de not_active Expired - Fee Related
- 1998-06-16 EP EP98930266A patent/EP0991964B1/en not_active Expired - Lifetime
- 1998-06-16 AU AU79693/98A patent/AU7969398A/en not_active Abandoned
- 1998-06-25 TW TW087110235A patent/TW396281B/zh not_active IP Right Cessation
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2001
- 2001-07-09 US US09/901,199 patent/US6770225B2/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| WO1998059266A1 (en) | 1998-12-30 |
| AU7969398A (en) | 1999-01-04 |
| US6258443B1 (en) | 2001-07-10 |
| CN1152268C (zh) | 2004-06-02 |
| EP0991964A1 (en) | 2000-04-12 |
| CN1261438A (zh) | 2000-07-26 |
| US6770225B2 (en) | 2004-08-03 |
| US20010048169A1 (en) | 2001-12-06 |
| DE69807227D1 (de) | 2002-09-19 |
| TW396281B (en) | 2000-07-01 |
| DE69807227T2 (de) | 2003-04-17 |
| EP0991964B1 (en) | 2002-08-14 |
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