JPH0371253B2 - - Google Patents
Info
- Publication number
- JPH0371253B2 JPH0371253B2 JP61302294A JP30229486A JPH0371253B2 JP H0371253 B2 JPH0371253 B2 JP H0371253B2 JP 61302294 A JP61302294 A JP 61302294A JP 30229486 A JP30229486 A JP 30229486A JP H0371253 B2 JPH0371253 B2 JP H0371253B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- core layer
- skin layer
- lens
- molded product
- 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 - Lifetime
Links
- 239000012792 core layer Substances 0.000 claims description 41
- 239000010410 layer Substances 0.000 claims description 40
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 238000000465 moulding Methods 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 36
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 239000003365 glass fiber Substances 0.000 description 9
- 239000004417 polycarbonate Substances 0.000 description 9
- 229920000515 polycarbonate Polymers 0.000 description 9
- 239000011162 core material Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 208000015943 Coeliac disease Diseases 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical compound [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302294A JPS63154336A (ja) | 1986-12-18 | 1986-12-18 | 多層構造樹脂成形品 |
| US07/022,210 US4805991A (en) | 1986-03-13 | 1987-03-05 | Multi-layer resin molded article and method of making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302294A JPS63154336A (ja) | 1986-12-18 | 1986-12-18 | 多層構造樹脂成形品 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63154336A JPS63154336A (ja) | 1988-06-27 |
| JPH0371253B2 true JPH0371253B2 (enrdf_load_stackoverflow) | 1991-11-12 |
Family
ID=17907256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61302294A Granted JPS63154336A (ja) | 1986-03-13 | 1986-12-18 | 多層構造樹脂成形品 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63154336A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3209775B2 (ja) * | 1992-01-10 | 2001-09-17 | 株式会社日立製作所 | 複合発電設備およびその運転方法 |
| JPH0564811U (ja) * | 1992-01-30 | 1993-08-27 | 株式会社ニコン | レンズ鏡筒の防滴機構 |
| JP5804692B2 (ja) * | 2010-11-24 | 2015-11-04 | キヤノン株式会社 | プラスチック光学部材およびプラスチック光学部材の製造方法 |
| JP6286967B2 (ja) * | 2013-09-18 | 2018-03-07 | リコーイメージング株式会社 | レンズ鏡筒 |
| JP6786397B2 (ja) * | 2014-01-24 | 2020-11-18 | ミラクロン エルエルシー | ゲートエリアと周縁部との間に射出成形孔を有する、共射出成形される多層製品 |
-
1986
- 1986-12-18 JP JP61302294A patent/JPS63154336A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63154336A (ja) | 1988-06-27 |
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