| 摘要 |
A method for manufacturing cylindrical microlenses having exceptional optical properties and the lenses made according to the process are described. The method includes the steps of forming a glass preform (1) and grinding at least one face (10) thereof in a direction transverse to the longitudinal axis of the preform (1), the preform (1) having the shape of a cylindrical lens, and drawing the glass preform (1) to reduce its cross-sectional dimensions while retaining its cross-sectional shape, thereby providing a cylindrical microlens with a high numerical aperture or other desirable characteristics. The drawing step may be facilitated by the application of heat to the preform (1). Further, the preform (1) may be roughly formed to a shape intermediate to its finished form by casting, sintering, extruding or other glass forming methodology.
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