A Path Planning Approach for Wedge/Aspheric Lens Element Grinding Based on Space Coordinate Transformation
Wedge/aspheric lens element is a combination of wedge prism and aspheric lens as a single piece component forming a decentred lens, which plays an important role in the fields of liquid crystal projection display, laser fusion, high-energy laser, satellite optical system and large astronomical telescope, etc. Wedge/aspheric lens element are primarily manufactured by CNC machining, especially 3-axis CNC grinding. This paper presents a facile tool path generation approach based on space coordinate transformation. The proposed method can be used to improve and automate three-axis Wedge/aspheric lens element machining for CAD/CAM systems. As part of the validation process, the tool paths generated are analyzed to compare with the desired part.
N. N. Zhang et al., "A Path Planning Approach for Wedge/Aspheric Lens Element Grinding Based on Space Coordinate Transformation", Advanced Materials Research, Vols. 383-390, pp. 7533-7537, 2012