JPS6427907A - Production of laminated lens - Google Patents
Production of laminated lensInfo
- Publication number
- JPS6427907A JPS6427907A JP18433187A JP18433187A JPS6427907A JP S6427907 A JPS6427907 A JP S6427907A JP 18433187 A JP18433187 A JP 18433187A JP 18433187 A JP18433187 A JP 18433187A JP S6427907 A JPS6427907 A JP S6427907A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- glass plate
- lens
- mold
- state
- 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.)
- Pending
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To form a lens of a free diameter with good dimensional accuracy accurately, by pouring a resin in a lens mold, covering the resin with a glass plate in such a way that the surface of the lens mold is not brought into contact with one face of the glass plate, irradiating the resin with an ultraviolet ray and curing the resin while the resin adheres to both surfaces of the mold and the glass plate and the mold is kept in such a state that the mold does not collapse. CONSTITUTION:After an ultraviolet ray curable resin 1 is poured, when the resin is covered with a glass plate 2, both surfaces of the glass plate 2 and a lens mold 3 are positioned in a separated state each other in such an extent that the surface of the resin 1 rising due to the surface tension adheres to the glass surface, so that the glass plate 2 can not be brought into contact with the surface of the lens mold 3. Then, in such state the resin 1 is irradiated with ultraviolet ray 4 and thereby cured. The resin 1 is placed in the lens mold 3 in such a state that it rises due to the surface tension and is covered with the glass plate 2 in such a state that the glass plate 2 sinks about several hundreds microns below the surface of the resin. No excess resin is therefore produced and it is possible to form a lens on the glass plate 2 just as it follows the shape of the lens mold 3 and to simplify the operation. As it is possible to produce a lens without any limitation on the lens size caused by the limitation of the size of the glass or the size of the facilities such as the oven and the like, the productivity is remarkably improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18433187A JPS6427907A (en) | 1987-07-23 | 1987-07-23 | Production of laminated lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18433187A JPS6427907A (en) | 1987-07-23 | 1987-07-23 | Production of laminated lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6427907A true JPS6427907A (en) | 1989-01-30 |
Family
ID=16151444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18433187A Pending JPS6427907A (en) | 1987-07-23 | 1987-07-23 | Production of laminated lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6427907A (en) |
-
1987
- 1987-07-23 JP JP18433187A patent/JPS6427907A/en active Pending
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