CGK-25 Ultra-Precision CNC Optical Centering Lathe is a special purpose lathe developed by Atoman Science and Technology Ltd. to perform CNC measurement of deviation between the optical axis of lenses and the geometrical axis of frames, and processing and adjustment. 
 
Features
    The lathe tackled key technology of optical lens assembly and precision assembly, and is capable of series of tasks such as optical lens and tube processing, examination, adjustment and measurement. The processing diameter ranges from 20mm to 200mm, greatly enhancing the accuracy of optical lenses and lens sets, improving the installation accuracy and imaging quality of optical camera parts and solving the technical problems with high-end optical imaging camera part processing in China.
 
Configurations
● The lathe adopts vertical design to avoid bending caused by gravity. Identical direction with lens measurement also avoids unnecessary errors.
● The spindle adopts large diameter hollow aerostatic spindle, and has high stiffness and ultra rotating accuracy, enabling bordering for larger lenses compared to horizontal installation.
● The lathe adopts vertical design, enabling easier lens alignment and less space occupying.

Technical Parameters
1、Adjustment stage diameter of principal axis 250mm
2、Roundness, cylindricity, verticality ≤3μm
3、Rotary accuracy of spindle ≤1μm   
4、X axis stroke / straightness / location accuracy 150mm/3μm/±2μm
5、X axis stroke / straightness / location accuracy 200mm/3μm/±2μm
6、External diameter of tube ≤240mm
7、Adjustable angle of universal clamp ±1.5°
8、Translation adjustment stroke of universal clamp ±1.5mm
9、Vertical movement range of autocollimator Up:400mm, Down: 700mm
10、Measurable range of radius of curvature of lenses (mm) - ∞―-10  10― + ∞
11、Measurement range from top of lenses to ends of frames     15mm
12、Measurement accuracy from top of lenses to ends of frames    ±3μm
13、Optical axis of lenses and fames centering accuracy 5μm
14、Optical axis deviation after camera installation ±10μm
15、Airgap deviation between lenses ±5μm

Operation Environment Requirements
1、Instrument operation temperature 23℃. Temperature gradient within 1 day lower than2℃. Humidity≤65%.
2、Air filter accuracy: 0.5um. Oil free. Water free.
3、Atmosphere pressure ≥ 0.6Mpa
4、Airflow ≥ 0.3m³/min
5、Rated power of instrument: 10KW

Used in measurement of deviation between the optical axis of lenses and the geometrical axis of frames, and processing and adjustment so as to improve the installation accuracy and imaging quality of optical camera parts.