| 摘要 |
<p>A lens mount (20) for positioning a cylindrical lens (30) in x, y, z and Υx, Υy, Υz directional degrees of freedom includes a carrier (33) movable to a selected z axis position on a base (32) including an elongated rail (42), and a non-precision retainer (36) which applies a biasing torque in the Υz direction onto the lens. The lens is positioned with a planar x-y surface (96) against a corresponding planar x-y surface (98) of a cavity (68) of the carrier and is retained therein by the retainer for location in the magnification x or y axis and Υz directions against the applied bias, with x axis and y axis directed locating screws (77, 72) contacting the lens and retainer. In a modified form, relative z axis positioning, as well as independent magnification x or y and Υz directional adjustment, is provided in a mount (20') that accommodates two cylindrical lenses (30', 30''). In a second embodiment, a lens mount (210) includes a carrier (214) with a lens-receiving cavity (228) and a spring (248) acting in the cavity adjacent one corner of a lens (212) to apply a biasing torque in the Υz direction directly on the lens. A plate-like retainer (216) wraps around a curved surface (264) of the lens to hold it in the cavity. Lens adjustments in the magnification x or y axis and Υz directions are made against the applied bias by locating screws (238, 243) which pass through the carrier and contact the lens.</p> |
