| 摘要 |
A process for producing an optical lens mount (101), which may be suitable for use in an infrared camera, the lens mount having sharp surface features and low emissivity surfaces, the process including the steps of casting the lens mount in the desired shape in a zinc alloy, deburring the zinc alloy element with a thermal deburring operation, and coating the deburred zinc alloy element with an electrocoating operation. The process may yield an optical element with sharp edges and fine features, such as for light baffles, mounting rings, adhesive mating structures, and the like. The deburring process, can be configured to not significantly blunt sharp edges or otherwise degrade fine features of the cast element. Similarly, the electrocoating process can be configured to apply a sufficiently thin coat so that sharp edges and/or fine features of the deburred element are not lost or significantly degraded. The lens mount has relatively low reflectivity in a spectral region of interest for the camera to reduce or minimize the contribution of the lens mount and lens to the total signal captured by the camera. |
