Anti-reflection optical article

• US 4,765,729 A
• Filed: 04/30/1986
• Issued: 08/23/1988
• Est. Priority Date: 04/30/1985
• Status: Expired due to Term

• Current Assignee: Toray Industries Incorporated
• Original Assignee: Toray Industries Incorporated
• Inventors: Taniguchi, Takashi
• Primary Examiner(s): SLUBY, PATRICIA
• Application Number:
  US06/857,477
• Time in Patent Office: 846 Days
• Field of Search: 428/328, 428/336, 428/331, 428/447, 428/422, 428/448, 427/164, 350/163, 350/165, 350/276 R
• US Class Current: 351/163
• CPC Class Codes: G02B 1/111 using layers comprising organic materials
• CPC Class Codes: Y10T 428/256 Heavy metal or aluminum or compound thereof
• CPC Class Codes: Y10T 428/257 Iron oxide or aluminum oxide
• CPC Class Codes: Y10T 428/259 Silicic material
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31507 Of polycarbonate
• CPC Class Codes: Y10T 428/31522 Next to metal
• CPC Class Codes: Y10T 428/31598 Next to silicon-containing [silicone, cement, etc.] layer
• CPC Class Codes: Y10T 428/31612 As silicone, silane or siloxane
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31862 Melamine-aldehyde
• CPC Class Codes: Y10T 428/3188 Next to cellulosic
• CPC Class Codes: Y10T 428/3192 Next to vinyl or vinylidene chloride polymer
• CPC Class Codes: Y10T 428/31928 Ester, halide or nitrile of addition polymer

Abstract

An anti-reflection optical article, which comprises a substrate, a single-layer or multi-layer anti-reflection film having a surface film composed of an inorganic substance, which is formed on the substrate, and a coating of an organic substance containing a curing material formed on the surface of the anti-reflection film, wherein the surface reflectance of the optical article is lower than 3% and the stationary contact angle to water is at least 60°.

Claims

1. An anti-reflection optical article having excellent stain resistance, scratch resistance and processability, which comprises a substrate, a single-layer or multi-layer anti-reflection film at least the outermost layer of which being composed of silicon dioxide and which is formed on the substrate by the PVD method, and a silanol-terminated polysiloaxane having a number average molecular weight of 1,000 to 1,000,000 formed on the surface of the anti-reflection film, wherein the surface reflectance of the optical article is lower than 3% and the stationary contact angle to water is at least 60°

.

2. The anti-reflection optical article as set forth in claim 1, wherein the thickness of the silanol-terminated polysiloaxane is 0.0005 to 0.5 μ

m.

3. The anti-reflection optical article as set forth in claim 1, which is an optical element.

4. The anti-reflection optical article as set forth in claim 3, wherein the optical element is a spectacle lens.

5. The anti-reflection optical article as set forth in claim 1, wherein the optical element is a CRT filter.

6. The anti-reflection optical article as set forth in claim 3, wherein a hard coat layer is interposed between the substrate and the anti-reflection film.

7. The anti-reflection optical article as set forth in claim 6, wherein the hard coat layer contains fine particles of silica having an average particle size of 1 to 200 nm.

8. An anti-reflection optical article as set forth in claim 6, wherein the hard coat layer comprises a silicon compound represented by the following general formula [II] and/or a hydrolysis product thereof:

space="preserve" listing-type="equation">R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-a-b [II]

wherein R¹ and R² each stand for an alkyl group, an alkenyl group, an aryl group or a hydrocarbon group having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group, a methacryloxy group or a cyano group, R³ stands for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1 and (a+b) is 1 or 2.

9. An anti-reflection optical article as set forth in claim 1, wherein an electroconductive layer is interposed between the substrate and the anti-reflection film.