- This module is possible to take an high contrast image which is certain
wavelength object different with general objective lens.
- Also can apply to 266nm~550nm & 350nm~600nm with UV Koehler illumination and lens by UV objective lens.
- It is good for the critical dimension measurement
Parfocal means that it is the same focus point. Even if there is changed
W.D according to certain magnification, focus point is the same position.
Also this distance is named “Parfocal Distance”
It is possible to apply for various applications with Infinity-Corrected Objective Lens Also can take an clear and uniformed image by Koehler illumination.
SPO have various types tube lens according to wide range(0.26X~2.0X)
|Model||EFL||Mag||Illumination Method||Sensor Size(mm)
|Parfocal Tube 2.0X||400mm||2.0X||1/2"(8mm)||C||PDF CAD|
|Parfocal Tube 1.5X||300mm||1.5X||1/2"(8mm)||C||PDF CAD|
|Parfocal Tube 1.0X||200mm||1.0X||1/2"(8mm)||C||PDF CAD|
|Parfocal Tube 0.75X||150mm||0.75X||1/2"(8mm)||C||PDF CAD|
|Parfocal Tube 0.5X||100mm||0.5X||1/2"(8mm)||C||PDF CAD|
|parfocal Tube 0.4X||80mm||0.4X||1/2"(8mm)||C||PDF CAD|
|Parfocal Tube 0.33X||66mm||0.33X||1/3"(6mm)||C||PDF CAD|
|Parfocal Tube 0.26X||52mm||0.26X||1/3"(6mm)||C||PDF CAD|