Computer-controlled milling machine for producing lenses for...

B - Operations – Transporting – 24 – B

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B24B 13/00 (2006.01) B23Q 1/52 (2006.01) B24B 9/14 (2006.01) B24B 13/06 (2006.01) B24B 41/06 (2006.01) B28D 1/14 (2006.01) G02C 9/00 (2006.01)

Patent

CA 2468937

A milling machine for shaping blanks to create optical lenses to be attached to eyeglass frames and to create filter lenses (14) for a clip-on accessory (13) whose pair of filter lenses register with a pair of optical lenses in prescription eyeglasses when the accessory is hitched onto the frame of the eyeglasses. The frame (10) of the eyeglasses is composed of two like half sections having a predetermined geometry, an optical lens being mounted in each half-section. The filter lenses in the accessory which are joined by a bridge piece have a geometry matching that of the half-sections of the frame whereby the appearance of the clip-on accessory is compatible with that of the eyeglasses.

La présente invention concerne une fraiseuse permettant de façonner des ébauches afin de créer des verres optiques destinés à être fixés sur des montures de lunettes et afin de créer des verres filtrants destinés à un accessoire de face solaire dont la paire de verres filtrants correspond avec une paire de verres optiques montée dans des lunettes de sécurité à verres correcteurs lorsque l'accessoire est accroché à la monture des lunettes. La monture des lunettes est composée de deux demi-sections présentant une géométrie prédéterminée, un verre optique étant monté dans chaque demi-section. Les verres filtrants montés dans l'accessoire qui sont reliés par un élément de pont ont une géométrie correspondant à celle des demi-sections de la monture, l'aspect de l'accessoire de face solaire étant ainsi compatible avec celui des lunettes.

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