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Variable Attenuator
Variable Attenuator
This product is an attenuator that uses specialy coated optics whose transmittance varies with incident angle. It is utilized mainly for a laser with random polarization such as excimer laser. It can be custom-ordered for specific wavelengths.
Domestic Sales Only in Japan

Application Examples
Laser processing machine, solar cell manufacturing and inspection system, semiconductor manufacturing and inspection system, LCD manufacturing and inspection system
| Model No. | Wavelength | Transmittance variable range |
Effective diameter |
Optical axis height |
Laser resistance (reference) |
Maximum incidence power |
|---|---|---|---|---|---|---|
| V193-ⅡL | 193nm | 10-80% | 45 x 22mm | 50mm | 500mJ/cm2(15ns10Hz) | 50W |
| V248-ⅡL | 248nm | 5-90% | 45 x 22mm | 50mm | 500mJ/cm2(15ns10Hz) | 50W |
| V308-ⅡL | 308nm | 5-90% | 45 x 22mm | 50mm | 500mJ/cm2(15ns10Hz) | 50W |
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