The golden yellow cut-off glass filter is an optical material designed to transmit light within a sp...
A UV cut-off glass filter is an optical material specifically designed to block ultraviolet (UV) light. It is widely used in various fields, including optical equipment, photography, microscopy, laser technology, and solar power generation. This filter effectively reduces or completely blocks ultraviolet light within a specific wavelength range, thereby protecting equipment, improving image quality, and ensuring workplace safety.
1. Features
| Number | Thickness(mm) | A[2856k] | D65 | Chemical stability | ND | α×10-7 (℃) |
Tg(℃) | TS(℃) | S | |||||
| x | y | Y | x | y | Y | DA | DW | |||||||
| ZJB220 | 2 | 6 | 6 | 1.485 | 53 | 502 | 594 | 2.27 | ||||||
| ZJB240 | 2 | 6 | 6 | 1.485 | 53 | 502 | 594 | 2.27 | ||||||
| ZJB260 | 2 | 1 | 4 | 1.508 | 81 | 586 | 656 | 2.47 | ||||||
| ZJB280 | 2 | 1 | 4 | 1.512 | 81 | 586 | 656 | 2.52 | ||||||
| ZJB300 | 2 | 1 | 4 | 1.502 | 2.38 | |||||||||
| ZJB320 | 2 | 1.575 | 3.23 | |||||||||||
| ZJB340 | 2 | 1 | 3 | 1.62 | 3.67 | |||||||||
| ZJB360 | 2 | 1.643 | 98 | 487 | 546 | 3.72 | ||||||||
| ZJB380 | 2 | 1 | 2 | 1.547 | 98 | 487 | 546 | 2.85 | ||||||
2. Technical parameters
| Number | Thickness(mm) | Atj(nm) | A0(nm) | TAO(%) | K |
| ZJB220 | 2 | 220±10 | 300 | ≥89.5 | ≥0.5 |
| ZJB240 | 2 | 240±10 | 330 | ≥89.5 | ≥0.5 |
| ZJB260 | 2 | 260±10 | 340 | ≥89.5 | ≥0.5 |
| ZJB280 | 2 | 280±10 | 350 | ≥89.5 | ≥0.5 |
| ZJB300 | 2 | 300±10 | 350 | ≥89.5 | ≥1.0 |
| ZJB320 | 2 | 320±10 | 400 | ≥89.5 | ≥1.0 |
| ZJB340 | 2 | 340±10 | 420 | ≥88.0 | ≥0.8 |
| ZJB360 | 2 | 360±10 | 440 | ≥87.0 | ≥1.0 |
| ZJB380 | 2 | 380±10 | 500 | ≥86.0 | ≥0.8 |
3. Bubble, fringe and stress levels
| Number | Bubble | Stripes | Stress |
| ZJB220 | D | 3C | 3 |
| ZJB240 | D | 3C | 3 |
| ZJB260 | B | 3C | 3 |
| ZJB280 | B | 3C | 3 |
| ZJB300 | B | 3C | 3 |
| ZJB320 | C-B | 3C | 3 |
| ZJB340 | C-B | 3C | 3 |
| ZJB360 | C-B | 3C | 3 |
| ZJB380 | B | 3C | 3 |
4. The spectra

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