PRODUCTION OF AN OPHTHALMIC LENS SUITABLE FOR STEREOSCOPIC VISION
First Claim
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1. Process for producing an ophthalmic lens suitable for stereoscopic vision based on selection of circular light-polarization, said process comprising the following steps:
- /1/ providing an ophthalmic base lens (1) having an optical surface (S1) of pseudo-spherical shape;
/2/ providing a film structure (10), which film structure includes a layer (3) of at least one doubly light-refracting material suitable for said layer to produce a quarter-wave retarding function for at least one wavelength of visible light; and
/3/laminating the film structure (10) onto the optical surface (S1) of the base lens (1), so that the film structure conforms to the pseudo-spherical shape.
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Abstract
A process for producing an ophthalmic lens which is suitable for stereoscopic vision based on selection of circular light-polarization includes laminating a quarter-wave retarding layer (3) onto an ophthalmic base lens (1). Such process leads to low unit cost for the lenses produced, and a high optical quality. The ophthalmic base lens may be adapted for correcting an ametropia of a wearer of the ophthalmic lens, thereby combining ametropia correction with stereoscopic vision.
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Citations
18 Claims
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1. Process for producing an ophthalmic lens suitable for stereoscopic vision based on selection of circular light-polarization, said process comprising the following steps:
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/1/ providing an ophthalmic base lens (1) having an optical surface (S1) of pseudo-spherical shape; /2/ providing a film structure (10), which film structure includes a layer (3) of at least one doubly light-refracting material suitable for said layer to produce a quarter-wave retarding function for at least one wavelength of visible light; and /3/laminating the film structure (10) onto the optical surface (S1) of the base lens (1), so that the film structure conforms to the pseudo-spherical shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification