Sperian Eye & Face Protection, Inc. - Smithfield RI
International Classification:
G02C 11/02
US Classification:
351 51, 351 44
Abstract:
The present invention relates generally to safety eyewear and more particularly to a safety eyewear that includes a coloration or tinting of an outer peripheral edge of the lens for indicating a performance characteristic of the safety eyewear or the lens and selected absorption of visible wavelengths of light. In one embodiment, the eyewear includes a VLT rated lens having a light visible tint or slight mist tint to provide ornamental coloration of the outer peripheral lens edge. The lens has a roughened or textured cut along an outer peripheral edge of the lens to diffract light. The outer peripheral lens edge is color coded according to a performance characteristic of the lens or the eyewear. In operation, the ornamental color of the outer peripheral edge of the lens is activated upon the diffraction of light along the roughed or texture outer peripheral edge of the lens while still meeting industry VLT requirements for a substantially clear lens.
SPERIAN EYE & FACE PROTECTION, INC. - SMITHFIELD RI
International Classification:
G02C 5/12
US Classification:
351138
Abstract:
The present invention relates generally to safety eyewear and more particularly to a safety eyewear having a horizontal ledge defined within a lens of the safety eyewear for attaching the nose piece structure. The safety eyewear includes a frame and a lens. The nose piece structure configured for attachment to a central portion of the lens. The nose piece structure having a channel defining horizontal ledge indents for mating engagement with horizontal ledge protrusions defined within the central portion of the lens. The central portion of the lens defining horizontal ledge protrusions for inserting within the ledge indents of the nose piece structure when the nose piece structure and the lens are attached together. In another embodiment, the channel of the nose piece structure defines horizontal ledge protrusions for mating engagement with horizontal ledge indents defined within the central portion of the lens.
Methods And Systems For Producing Ophthalmic Lenses Background
- Charenton-le-Pont, FR Bruce TAYLOR - Dallas TX, US Brad GELB - Dallas TX, US Mark KALUZA - Dallas TX, US Peter HONES - Dallas TX, US Fred ADOLFO - Dallas TX, US
International Classification:
B24B 9/14 B24B 13/00 B24B 13/06 G05B 19/042
Abstract:
This disclosure includes methods and systems for producing ophthalmic lenses. Some methods include identifying a plurality of zones within a spatial representation of a lens blank, selecting, for each of the zones, one or more parameters for producing the lens, and producing the lens by removing material from the lens blank according to the one or more parameters of each of the zones.
Isbn (Books And Publications)
A Field Guide to the Boundary Markers on and around Dartmoor