Driving glasses
First Claim
1. Driving glasses meeting the standards of ANSI Z80.3 and having a functional layer or an anti-reflection layer, which are composed of a metal or an organic substance, formed on the outer surface of a glass matrix,wherein said glass matrix contains neodymium oxide and praseodymium oxide, the content ratio of neodymium oxide and praseodymium oxide is 3:
- 1 through 1;
1 as a range, and a total amount thereof is 5 through 15% by weight, and forms an absorption peak of light transmittance at a wavelength of 510 through 540 nm and a wavelength of 570 through 590 nm.
1 Assignment
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Accused Products
Abstract
The invention relates to driving glasses in which a thermic ray reflection layer 2 made of a metal or an organic substance is provided on the outer surface of a glass matrix 1, and an anti-reflection layer 3 is provided on the inner surface thereof, werein the glass matrix 1 contains neodymium oxide Nd2O3 of 1 through 12% by weight and praseodymium oxide Pr6O11 of 0.5 through 8% by weight, and forms an absorption peak of light transmittance at a wavelength of 510 through 540 nm and a wavelength of 570 through 590 nm.
42 Citations
17 Claims
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1. Driving glasses meeting the standards of ANSI Z80.3 and having a functional layer or an anti-reflection layer, which are composed of a metal or an organic substance, formed on the outer surface of a glass matrix,
wherein said glass matrix contains neodymium oxide and praseodymium oxide, the content ratio of neodymium oxide and praseodymium oxide is 3: - 1 through 1;
1 as a range, and a total amount thereof is 5 through 15% by weight,and forms an absorption peak of light transmittance at a wavelength of 510 through 540 nm and a wavelength of 570 through 590 nm. - View Dependent Claims (3, 4, 12, 13, 14)
wherein contents of neodymium oxide and praseodymium oxide are 5 through 7% and 2 through 5% by weight respectively, and their content ratio is 2: - 1 through 1.5;
1.
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13. The driving glasses as set forth in claim 1,
wherein said glass matrix further contains silicon oxide of 35 through 70%, boron oxide of 2 through 10%, barium oxide of 2 through 12%, sodium oxide and/or potassium oxide of 10 through 25%, and stibium oxide of 0 through 1%, all by weight. -
14. The driving glasses as set forth in claim 13,
wherein said glass matrix further contains zinc oxide of 0.05 through 3%, cerium oxide of 0.1 through 2%, and nickel oxide of 0.05 through 3%, all by weight.
- 1 through 1;
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2. Driving glasses meeting the standards of ANSI Z80.3 and having a functional layer or an anti-reflection layer, which are composed of a metal or an organic substance, formed on the outer surface of a glass matrix,
wherein said glass matrix contains neodymium oxide of 0.5 through 8%, titanium oxide of 5 through 15%, iron oxide of 1 through 6%, and cerium oxide of 1 through 7%, and a total amount of the last three components is 10 through 20%, all by weight, and suppresses its light transmittance of a wavelength of 400 nm or less substantially to zero, in a glass thickness of 2 mm or more, and at the same time, forms an absorption peak of the light transmittance at a wavelength of 510 through 540 nm.
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5. Driving glasses meeting the standards of ANSI Z80.3 and having a polarizing film provided on the inner surface or the outer surface of a glass matrix,
wherein said glass matrix contains neodymium oxide and praseodymium oxide, the content ratio of neodymium oxide and praseodymium oxide is 3: - 1 through 1;
1 as a range, and a total amount thereof is 5 through 15% by weight,and forms an absorption peak of light transmittance at a wavelength of 510 through 540 nm and a wavelength of 570 through 590 nm. - View Dependent Claims (6, 7)
wherein a photo chromic portion whose light transmittance automatically varies in response to irradiation of an ultraviolet ray is provided continuously from said polarizing film. -
7. The driving glasses as set forth in claim 5,
wherein UV-cut glass for blocking out ultraviolet rays is provided continuously from said polarizing film.
- 1 through 1;
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8. Driving glasses meeting the standards of ANSI Z80.3 and having a polarizing film provided on the inner surface or the outer surface of a glass matrix,
wherein said glass matrix contains neodymium oxide of 0.5 through 8%, titanium oxide of 5 through 15%, iron oxide of 1 through 6% and cerium oxide of 1 through 7%, and a total amount of the last three components is 10 through 20%, all by weight, and suppresses its light transmittance of a wavelength of 400 nm or less substantially to zero, in a glass thickness of 2 mm or more, and at the same time, forms an absorption peak of the light transmittance at a wavelength of 510 through 540 nm.
Specification