Christian Dalloz S.a.

Wgm Safety Corp.

Bernard Reymondet

Guy Magdelaine

Guy Magdeleine

Etienne Billard

The present invention concerns an optically non correcting lens blank for the manufacture of an optically non correcting lens, having a high curvature, corresponding to an average radius of curvature at most equal to about 90 mm, said lens blank comprising a transparent blade, and having on the one hand, a geometrical axis, passing through said blade and defining a geometrical center, and on the other hand, an optical axis defining an optical center, the blade, when seen in elevation, further having a generally non circular contour, the optical axis and geometrical axis, and thus the optical and geometrical centers, being physically separated by a predetermined distance from each other and angularly displaced, the blade further comprising stacking correction means, which are integrated with or affixed to the contour of the blank.

Lens blanks, process of manufacture therefor and eyewear incorporating

Eyewear

A protective eyewear including a brow member, two temple arm members, a front lens and two side shields. The front lens is removably attached to the brow member within a channel formed therein. The lens includes a series of projections adjacent one edge thereof and the brow member including a corresponding series of slots opening into the channel. The projections on the lens are engaged within the slots in the brow member to lock the lens within the brow channel. The side shields are attached to the corresponding temple arm members by means of at least one projecting hub which is engaged within the temple arm. The nub preferably includes a central opening. The temple arm is molded to the side shield such that the temple arm material fills the central opening and engages the hub to lock the side shield in position. The eyewear provides a removable lens and also forms a protective structure that meets the eyewear impact resistance standards.

Protective eyewear with replaceable lens

Safety glasses

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Saint Claude, France

Bernard Reymondet