Composite gradient index and curved surface anamorphic lens and applications

An anamorphic lens comprising:

• a body of optical material having a gradient index of refraction and characterized by an axis of symmetry;
• said body having at least one curved surface for generating optical power in only one plane parallel to said axis.

A lens for focusing a light source having a first angular divergence in a first plane and a second, different, angular divergence in a second plane comprising:

• a body of optical material having at least one curved surface providing optical power to focus light in said first plane to a predetermined point, and to focus light in said second plane to a different point;
• said body characterized by a planar gradient index of refraction providing an increment of optical power to focus light in said second plane to said predetermined point.

A lens for focusing a light source having a first angular divergence in a first plane and a second, different, angular divergence in a second plane comprising:

• a body of optical material characterized by a planar gradient index of refraction providing optical power to focus light in said first plane to a predetermined point, and to focus light in said second plane to a different point;
• said body having a cylindrical surface providing an increment of optical power to focus light in said second plane to said predetermined point.

A toroidal equivalent gradient-index lens which is equivalent to a homogeneous toroidal lens comprising:

• a substantially rectangular body having an optical axis, opposite flat parallel surfaces on the body between which a gradient-index variation is produced, and opposed curved surfaces on the body of a predetermined radii through which the optical axis extends.