-
公开(公告)号：DE68912087D1
公开(公告)日：1994-02-17
申请号：DE68912087
申请日：1989-10-18
Applicant: ESSILOR INT
Inventor： CORNU DANIEL RUE FRANCOIS BOUC , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
-
公开(公告)号：FR2638246B1
公开(公告)日：1991-01-25
申请号：FR8813772
申请日：1988-10-20
Applicant: ESSILOR INT
Inventor： CORNU DANIEL , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
-
Patent Agency Ranking
公开(公告)号：FR2638246A1
公开(公告)日：1990-04-27
申请号：FR8813772
申请日：1988-10-20
Applicant: ESSILOR INT
Inventor： CORNU DANIEL , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
-
公开(公告)号：ES2050262T3
公开(公告)日：1994-05-16
申请号：ES89402878
申请日：1989-10-18
Applicant: ESSILOR INT
Inventor： CORNU DANIEL RUE FRANCOIS BOUC , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
-
公开(公告)号：DE68912087T2
公开(公告)日：1994-04-28
申请号：DE68912087
申请日：1989-10-18
Applicant: ESSILOR INT
Inventor： CORNU DANIEL RUE FRANCOIS BOUC , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
-
公开(公告)号：IT1129784B
公开(公告)日：1986-06-11
申请号：IT1943480
申请日：1980-01-24
Applicant: ESSILOR INT
Inventor： THIEBAUT JEAN , LAPEYRE GUY
Abstract: A spectacle cleaning device for domestic use comprises an open-ended container adapted to contain a liquid detergent and the spectacles to be cleaned, a movable cover for sealing the container, means for agitating the liquid detergent and means for actuating said agitating means. The latter may comprise either an air diffusor fed by a pressurized air generator, or a propeller driven by an electric motor.
-
公开(公告)号：DE3002717A1
公开(公告)日：1980-08-28
申请号：DE3002717
申请日：1980-01-25
Applicant: ESSILOR INT
Inventor： THIEBAUT JEAN , LAPEYRE GUY
Abstract: A spectacle cleaning device for domestic use comprises an open-ended container adapted to contain a liquid detergent and the spectacles to be cleaned, a movable cover for sealing the container, means for agitating the liquid detergent and means for actuating said agitating means. The latter may comprise either an air diffusor fed by a pressurized air generator, or a propeller driven by an electric motor.
-
-
-
-
-
-
Search Results
7
records
(took 0.061 seconds)
