JPS649185B2 - - Google Patents
Info
- Publication number
- JPS649185B2 JPS649185B2 JP57233080A JP23308082A JPS649185B2 JP S649185 B2 JPS649185 B2 JP S649185B2 JP 57233080 A JP57233080 A JP 57233080A JP 23308082 A JP23308082 A JP 23308082A JP S649185 B2 JPS649185 B2 JP S649185B2
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- plate
- synthetic resin
- cutting
- thermoplastic synthetic
- 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.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- 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
- B29D11/00269—Fresnel lenses
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57233080A JPS59123633A (ja) | 1982-12-28 | 1982-12-28 | フレネルレンズの製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57233080A JPS59123633A (ja) | 1982-12-28 | 1982-12-28 | フレネルレンズの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59123633A JPS59123633A (ja) | 1984-07-17 |
JPS649185B2 true JPS649185B2 (enrdf_load_html_response) | 1989-02-16 |
Family
ID=16949482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57233080A Granted JPS59123633A (ja) | 1982-12-28 | 1982-12-28 | フレネルレンズの製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59123633A (enrdf_load_html_response) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63180801U (enrdf_load_html_response) * | 1987-05-14 | 1988-11-22 | ||
JP4933235B2 (ja) * | 2006-12-04 | 2012-05-16 | 住友化学株式会社 | 表面に凹凸形状部を有する樹脂板の製造方法 |
-
1982
- 1982-12-28 JP JP57233080A patent/JPS59123633A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59123633A (ja) | 1984-07-17 |
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