Patent EP0151346B1 successfully refreshed from Google Patents.
EP0151346B1
Expired / Lapsed
EP
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Glasses for ophthalmic applications
Assignee: Corning Glass Works
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Filing: 1984-12-14
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Granted: 1988-03-09
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Expires: 2004-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jean Emile Boudot
- 👤 Jean-Pierre Mazeau
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 21:48
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/08; C03C4/085; C03C3/00; C03C3/04; C03C3/076; C03C3/089; C03C3/091; Y; Y10; Y10S; Y10S501/00; Y10S501/90; Y10S501/903
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A glass for ophthalmic applications having a refractive index of 1.523±0.004, an Abbe number between 51-59, a density less than 2.43 g/cm 3 , a transmission at 400 nm in 2 mm thickness greater than 89%, and a UV cutoff between 325 nm-335 nm, characterized in that it is prepared from a batch composition consisting essentially, in weight percent on the oxide basis of:
Claim 2
Dependent Claim
64 words
A glass for ophthalmic applications having a refractive index of 1.523±0.004, an Abbe number between 51-59, a density less than 2.43 g/cm 3 , a transmission at 400 nm in 2 mm thickness greater than 89%, and a UV cutoff between 325 nm-335 nm, characterized in that it is prepared from a batch composition consisting essentially, in weight percent on the oxide basis of:
Claim 3
Dependent Claim
27 words
A glass as claimed in claim 1 characterized in that it is prepared from a batch composition consisting essentially, in weight percent on the oxide basis, of:
Claim 4
Dependent Claim
26 words
A glass according to claim 2 characterized in that it is prepared from a batch composition consisting essentially, in weight percent on the oxide basis, of:
Claim 5
Dependent Claim
35 words
A glass according to any of claims 1 to 3 characterized in that it is tinted by up to 2% by weight relative to the weight of the glass of at least one colorant element.
References Cited (Backward Citations)
No citation records indexed.
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