Patent ID: 6165393
Filing Date: 2000-12-26
Classification: B29C,B29D,B29L,G02B

Abstract:
A production method of a dielectric lens comprising a lens main body made of a dielectric material and a matching layer provided so as to cover the surface of the lens main body comprising:(a) a lens main body forming step of forming a lens main body by an injection compression molding method of injecting and compressing a composite dielectric material containing a thermoplastic resin as the dielectric material into a mold,(b) a first matching layer forming step of forming a matching layer (first surface side matching layer) on a first surface of the lens main body by setting the lens main body formed in the lens main body forming step on a matching layer forming mold on either of the front surface side or the rear surface side (first surface side), and injecting a matching layer material into the cavity formed between the first surface and the matching layer forming mold, and(c) a second matching layer forming step of forming a matching layer (second surface side matching layer) covering the lens main body integrally with the first surface side matching layer on the second surface of the lens main body by setting the lens main body with the matching layer formed on the first surface on a matching layer forming mold on either of the front surface side or the rear surface side (first surface side) without having a matching layer formed thereon, and injecting a matching layer material into the cavity formed between the second surface and the matching layer forming mold.