U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Multi-layer reflectors

Patent 4340646 Issued on July 20, 1982. Estimated Expiration Date: Icon_subject November 13, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2519722

2676117

3026177

3026210

3398040

3410636

3610741

3687713

3837895

Reflecting mirror Patent #: 4009947
Issued on: 03/01/1977
Inventor: Nishida ,   et al.

Inventors

Assignee

Application

No. 06/093558 filed on 11/13/1979

US Classes:

428/429, As silicone, silane or siloxane359/884, With selective absorption or transparent overcoating428/412, Of polycarbonate428/415, Next to glass or quartz428/416, Next to metal428/425.5, Next to silicon-containing (silicone, cement, etc.) layer428/425.6, Quartz or glass428/425.8, Next to free metal428/426, Of quartz or glass428/427, Next to a boron containing layer428/428, Next to another silicon containing layer428/432, Next to metal or compound thereof428/433, Alloy or free metal428/434, Noble metal containing428/446, Of silicon containing (not as silicon alloy)428/447, As siloxane, silicone or silane428/450, Next to metal428/457, Of metal428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/460, Next to aldehyde or ketone condensation product428/463, Ester, halide or nitrile of addition polymer428/469, Next to metal salt or oxide428/472, Refractory metal salt or oxide428/913MATERIAL DESIGNED TO BE RESPONSIVE TO TEMPERATURE, LIGHT, MOISTURE, ETC.

Examiners

Primary: Robinson, Ellis P.

Attorney, Agent or Firm

International Classes

C04B 41/45 (20060101)
C03C 17/42 (20060101)
B05D 7/24 (20060101)
C04B 41/89 (20060101)
C04B 41/52 (20060101)

Foreign Application Priority Data

1978-11-13 JP

Abstract

The reflector of the present invention is a multi-layer reflector comprising a substrate with or without a resin layer coated thereon; a light-reflective metal layer vacuum-coated on said substrate; and a protective layer consisting of a light transmittable resin layer and a light transmittable, preferably vacuum-coated, inorganic substance layer coated on said metal layer. By this, each film can be thin as compared with each individual protective film, which leads to good heat conductivity low temperature rise, high impact strength and good durability and which gives clear reflected images or high precision light collective and light distributing properties. In addition, the coated light-reflective metal shows better regular reflectivity, giving clear and sharp reflected images and allowing more accurate light collective or light distributing properties. Furthermore, selection of an inorganic substance layer or a resin layer as the outermost protection allows the manufacture of reflectors having desired characteristics (resistance to oil, solvents, light, heat, abrasion, chemicals, water and moisture; flexibility, etc.) depending on specific requirements.

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