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7172285 |
Contact lens with high-order compensation for non-axisymmetric structure
Contact lenses, such as prism ballasted toric lenses, having anterior and posterior surfaces related by way of non-axisymmetric thickness variation can exhibit a third-order aberration,...
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7134753 |
Contact lens having a uniform horizontal thickness profile
A contact lens having a rotational stabilization mechanism thereon, such as prism ballast, and a thickness profile that reduces the torque imparted on the lens by the action of the eyelids,...
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7133174 |
Contact lens having a uniform horizontal thickness profile
A contact lens having a rotational stabilization mechanism thereon, such as prism ballast, and a thickness profile that reduces the torque imparted on the lens by the action of the eyelids,...
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6971746 |
Contact lens having a uniform horizontal thickness profile
A contact lens having a rotational stabilization mechanism thereon, such as prism ballast, and a thickness profile that reduces the torque imparted on the lens by the action of the eyelids,...
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6923540 |
Toric multifocal contact lenses
The present invention provides a toric multifocal contact lens having a cylindrical optical power to correct astigmatism vision errors and a multifocal power to compensate for presbyopia. A toric...
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5159380 |
Photographing light quantity controller for endoscope
A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to be taken through the endoscope. The photographing...
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4945366 |
Endoscope still photographing apparatus provided with an automatic illuminating light amount controlling function
In a releasing operation with a still camera fittable to the eyepiece part of an endoscope and containing a recording medium, without exposing the recording medium, the diaphragmed value of a light...
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