Title:
【発明の名称】有機材料から成る光学要素のための反射防止膜
Document Type and Number:
Japanese Patent JPS63500340
Kind Code:
A
Abstract:
PCT No. PCT/DE86/00299 Sec. 371 Date Mar. 19, 1987 Sec. 102(e) Date Mar. 19, 1987 PCT Filed Jul. 21, 1986 PCT Pub. No. WO87/00641 PCT Pub. Date Jan. 29, 1987.An anti-reflection film of several layers is described for an optical element consisting of an organic material with photochromic properties. The film according to the invention is characterized by the fact that the mean reflection of the film over the spectral range between 330 nm and 380 nm is less than 4% and the mean reflection over the range between 290 nm and 330 nm is greater than 15%. This reflection behavior serves to prevent the stimulation of the photochromic effect by light with too short a wavelength from reducing the useful life of the photochromic effect. In addition, a suitable choice of the reflection properties means that a deliberate stimulation of photochromic molecules situated in certain steric positions and so influence on the kinetics and color of the photochromic effect can be obtained.
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Inventors:
Meltzig. Manfred
Etzhua Elhard
Etzhua Elhard
Application Number:
JP50404186A
Publication Date:
February 04, 1988
Filing Date:
July 21, 1986
Export Citation:
Assignee:
Ultke Ge-Roden Stock
International Classes:
G02B1/10; G02B1/111; G02C7/10; (IPC1-7): G02B1/10
Attorney, Agent or Firm:
Yoshihisa Oshida