| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 09.99 |
| PATENT ASSIGNEE | Yazaki Corp |
| PATENT CLAIMS |
Process for depositing a multi-layer antireflection coating on transparent substrate - Mixing together an alkoxide, an alc., & water to produce a plurality of polymerized soln formulated to provide transparent thin-film layers having different refractive indices - Repeatedly applying a separate polymerized soln to the transparent substrate, wherein an amount of the soln adhe res to the substrate following each application & - Immediately following each application, curing the adhered soln to form a separate polymerized thin-film layer on subs trate Wherein repeatedly applying & then curing produces a succession of overlaying thin-film layers, with refractive indices of the successive layers being alternately high & low rel. to each other Wherein the alkoxide soln that are used to produce thin-film layers having rel. high refractive indices include Ti isopropo xide & layers produced using such soln include polymerized TiO2 Wherein alkoxide soln that are used to produce thin-film layers having rel. low refractive indices include tetraethyl orthosilicate & layers produced using such soln include polymerized SiO2 Wherein at least one of the polymerized soln produced in mixing surther includes discrete particles having concn in soln < 0.1% & av size < 10 microns Wherein the successive polymerized layers cooperate to form a multi-layer, diffuse antireflection coating |
| PATENT PHOTOCOPY | Available on request |
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