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KR930702694A - 역반사 제품, 역반사 제품의 투명 베이스 시트 및 투명 베이스 시트 제조방법 - Google Patents

역반사 제품, 역반사 제품의 투명 베이스 시트 및 투명 베이스 시트 제조방법

Info

Publication number
KR930702694A
KR930702694A KR1019930701449A KR930701449A KR930702694A KR 930702694 A KR930702694 A KR 930702694A KR 1019930701449 A KR1019930701449 A KR 1019930701449A KR 930701449 A KR930701449 A KR 930701449A KR 930702694 A KR930702694 A KR 930702694A
Authority
KR
South Korea
Prior art keywords
base sheet
layer
article
array
reflective layer
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
Application number
KR1019930701449A
Other languages
English (en)
Other versions
KR100256436B1 (ko
Inventor
라이 루 쉬
Original Assignee
게리리 그리스울드
미네소타 마이닝 앤드 매뉴팩츄어링 캄파니
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 게리리 그리스울드, 미네소타 마이닝 앤드 매뉴팩츄어링 캄파니 filed Critical 게리리 그리스울드
Publication of KR930702694A publication Critical patent/KR930702694A/ko
Application granted granted Critical
Publication of KR100256436B1 publication Critical patent/KR100256436B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/13—Reflex reflectors including curved refracting surface plural curved refracting elements forming part of a unitary body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/22—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00278—Lenticular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00605—Production of reflex reflectors
    • G—PHYSICS
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    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • G—PHYSICS
    • G02—OPTICS
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    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0043—Inhomogeneous or irregular arrays, e.g. varying shape, size, height
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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    • G02B3/0006—Arrays
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    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
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    • G02—OPTICS
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    • G02B5/126—Reflex reflectors including curved refracting surface
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • B29C33/3878—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts used as masters for making successive impressions
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2429/00—Carriers for sound or information
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Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Toxicology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Road Signs Or Road Markings (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명의 제품은 넓은 제1 및 제2표면을 갖는 투명 평철 베이스 시트를 포함하는데, 여기서 제2 표면은 대체로 평면이고 제1표면은 그위에 반타원형 마이크로렌즈 어레이를 가지며, 마이크로렌즈의 형상 및 베이스 시트의 두께는 상기 어레이에 거의 직교로 입사되는 조준광이 대략 제2표면에 집속되도록 결정된다. 이 제품은 선택적으로 베이스 시트가 역반사성으로 되게 하는 제2표면상의 거울 반사층을 더 포함한다. 반사층위의 선택적 접착층은 변조여부를 표시하여 진품여부를 식별가능케 하는 보호성의 오버레이로서 제품이 문서에 접착될 수 있게 한다. 보안성 증대를 위해 특정 이미지가 제품내에 형성될 수 있다. 또한 이와같은 제품을 형성하기 위한 방법도 개시한다.

Description

역반사 제품, 역반사 제품의 투명 베이스 시트 및 투명 베이스 시트 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 역반사성 시팅 부분의 개략 단면도, 제2도는 본 발명의 일 실시예로서 문서의 표면이 도포된 후의 투명 보호 오버레이 부분의 개략 단면도, 제3는 본 발명의 투명 보호 오버레이 부분의 또 다른 실시예의 개략 단면도.

Claims (16)

  1. 투명 베이스 시트(transarent base sheet)로서, 상기 시트는 평철(plano-convex)이며 제1 및 제2의 넓은 표면을 갖되, 상기 제2표면은 대체로 평면이고 상기 제1표면은 그위에 대체로 반타원형의 마이크로렌즈 어레이를 가지며, 상기 마이크로 렌즈의 형상 및 상기 베이스 시트의 두께는 상기 어레이에 거의 직교로 입사되는 조준광이 대략 상기 제2표면에 집속되도록 결정되는 것을 특징으로 하는 투명 베이스 시트.
  2. 제1항에 있어서, a)상기 마이크로렌즈들은 상당히 근접되어 있거나; b)상기 시트는 상기 제2표면상에 반사층을 더 포함하거나; c)상기 베이스 시트는 상기 마이크로 렌즈 어레이를 포함하는 마이크로렌즈 층과 대체로 평면인 제1 및 제2의 넓은 표면을 갖는 투명 이격층을 포함하되, 상기 이격충 및 상기 마이크로 렌즈층은 함께 접착되는 것들 중 적어도 하나를 특징으로 하는 투명 베이스 시트.
  3. 역반사 제품(retroreflective article)으로서, 상기 제품은 제1 및 제2의 넓은 표면을 갖는 투명 평철 베이스 시트를 포함하며, 상기 제2표면은 대체로 평면이고 그위에 반사층을 가지며, 상기 제1표면은 그위에 거의 반타원형 마이크로렌즈들의 어레이를 가지며, 상기 마이크로렌즈의 형상 및 상기 베이스시트의 두께는 상기 어레이에 거의 직교로 입사되는 조준광이 상기 제품에 의해 역반사되게 대략 상기 제2표면에 집속되도록 결정되는 것을 특징으로 하는 역반사 제품.
  4. 제3항에 있어서, 상기 반사층은 불연속적인 것을 특징으로 하는 역반사 제품.
  5. 제3항에 있어서, 상기 베이스 시트는 상기 마이크로렌즈 어레이를 포함하는 마이크로렌즈 층과 대체로 평면이 제1 및 제2의 넓은 표면을 갖는 투명 이격층을 포함하며, 상기 이격층 및 상기 마이크로렌즈는 함께 접착되어 있는 것을 특징으로 하는 역반사 제품.
  6. 제5항에 있어서, a)상기 제품의 전체 두께는 약0.05 내지 0.4㎜ 사이에 있거나; b)상기 이격층의 전체 두께는 약 0.2 내지 약 0.3㎜사이에 있는 것들 중 적어도 하나를 특징으로 하는 역반사 제품.
  7. 제3항에 있어서, 상기 제품은 상기 이격층이 제공된 면과는 반대쪽에 있는 상기 반사층의 면상에 접착층 더 포함하는 것을 특징으로 하는 역반사 제품.
  8. 제7항에 있어서, 상기 반사층 및 상기 접착층은 투명한 것을 특징으로 하는 반사 제품.
  9. 제8항에 있어서, 상기 제품은 상기 베이스 시트의 상기 제2표면과 상기 반사층 사이에 침착된 결상 물질(imaging material)을 더 포함하는 것을 특징으로 하는 반사 제품.
  10. 제9항에 있어서, 상기 결상 물질의 적어도 일부는 투명한 것으로서, 상기 접착층위에 의해 상기 제품을 정보를 가진 문서에 접착시킨 경우, 간섭없이 주변광 상태에서 상기 문서상의 정보를 육안으로 볼 수 있게 하는 이미지를 형성하는 것을 특징으로 하는 역반사 제품.
  11. 제8항에 있어서, 상기 반사층은 불투명하고 불연속적인 것을 특징으로 하는 역반사 제품.
  12. 베이스 시트 제조 방법으로서, 상기 방법은, a)경화성 조성물을 준비하는 단계와; b)대체로 반타원형 공동들의 어레이를 갖는 성형 마스터 표면상에 상기 조성물을 침착하는 단계와; c)대체로 평면의 투명 기재막과 상기 성형 마스터 사이로 상기 조성물의 비드를 분산시키되, 상기 성형 마스터 및 상기 기재막 중의 적어도 하나는 가요성인 단계와; d)상기 침착된 조성물을 경화시켜 상기 기재에 접착된 대체로 반타원형 마이크로렌즈들의 어레이를 포함하는 조성체를 생성하는 단계와; e)상기 성형 마스터로부터 상기 조성체를 제거하여 상기 베이스 시트를 생성하는 단계를 포함하는 것을 특징으로 하는 베이스 시트 제조방법.
  13. 제12항에 있어서, 상기 경화성 조성물은 경질 세그먼트 및 연질 세그먼트를 함유하되 자외선에 의해 경화 가능하고(ultravivlet-curable), 일체형(one-part)이고, 용매를 사용하지 않고, 방사선에 의해 부가 중합가능하고, 가교결합 가능한 유기 올리고성 조성물이고, 상기 경화는 자외선에 노출시켜 행하는 것을 특징으로 하는 베이스 시트 제조방법.
  14. 제3항에 있어서, 상기 경질 세그먼트는 폴리우레탄이고 상기 연질 세그먼트는 폴리에스테르인 것을 특징으로 하는 베이스 시트 제조방법.
  15. 제12항에 있어서, a)상기 조성물은 상기 성형 마스터 포면위로 상기 반타원형 공동의 평균 깊이의 20%보다 큰 거리만큼 위로 연장하지 않거나; b)상기 방법은 상기 기재의 노출 표면위에 거울 반사층을 도포하여 역반사 시팅을 생성하는 것을 더 포함하거나; c)상기 방법은 상기 반사층위에 접착층을 도포하는 것을 더 포함하는 것들 중 적어도 하나를 특징으로 하는 베이스 시트 제조방법.
  16. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930701449A 1990-11-15 1993-05-14 역반사 제품, 역반사 제품의 투명 베이스 시트 및 투명 베이스 시트 제조방법 Expired - Fee Related KR100256436B1 (ko)

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US613,136 1990-11-15
US07613136 US5254390B1 (en) 1990-11-15 1990-11-15 Plano-convex base sheet for retroreflective articles
PCT/US1991/007408 WO1992008998A1 (en) 1990-11-15 1991-10-07 Plano-convex base sheet for retroreflective articles and method for making same

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KR930702694A true KR930702694A (ko) 1993-09-09
KR100256436B1 KR100256436B1 (ko) 2000-05-15

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DE69131278D1 (de) 1999-07-01
EP0557411B1 (en) 1999-05-26
BR9106964A (pt) 1993-08-17
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US5254390A (en) 1993-10-19
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