Product Information

High Precision Aspheric and Free-form Surface Grinder ULC/ULG Series, LG Series

The ULC/ULG series has been developed with the goal of turning and grinding free-form surface (f-θ lens) and asphere lenses as well as their respective molds with high efficiency and high precision. Moreover, as shown in the figures below, optimized machine structure and options are available for various applications and high cost performance is achieved.

Machining Examples

Example of Turning Machining

Workpiece Specifications

Workpiece Specifications

Machining

Machining

Surface roughness Ry: 6nm, Ra: 0.7 nm

Surface roughness Ry: 6nm, Ra: 0.7 nm

Form accuracy P-V: 0.046 μm

Form accuracy P-V: 0.046 μm

Example of Vertical Spindle Grinding

Workpiece Specifications

Workpiece Specifications

Machining

Machining

Surface roughness Ry: 25nm, Ra: 3.5 nm

Surface roughness Ry: 25nm, Ra: 3.5 nm

Form accuracy P-V: 0.054 μm

Form accuracy P-V: 0.054 μm

Example of Slant Spindle Grinding

Workpiece Specifications

Workpiece Specifications

Machining

Machining

Surface roughness Ry: 20 nm, Ra: 3 nm

Surface roughness Ry: 20 nm, Ra: 3 nm

Form accuracy P-V: 0.065 μm

Form accuracy P-V: 0.065 μm

(*) The above data are from ULG-100D(H3). Moreover, it is sample values, and not guaranteed values.