A UV cut-off glass filter is an optical material specifically designed to block ultraviolet (UV) lig...
The golden yellow cut-off glass filter is an optical material designed to transmit light within a specific wavelength range while effectively blocking unwanted wavelengths. With its distinctive golden yellow appearance, this filter is widely used in various optical experiments, photography, imaging equipment, and industrial applications, providing precise wavelength-selective filtering.
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 | |||||||
| JB400 | 2 | 0.45 | 0.41 | 96.3 | 0.316 | 0.336 | 94.2 | 1 | 1 | 1.632 | 95 | 497 | 555 | 3.65 |
| JB420 | 2 | 0.455 | 0.414 | 93.1 | 0.323 | 0.346 | 90.8 | 2 | 3 | 1.632 | 95 | 497 | 555 | 3.69 |
| JB450 | 2 | 0.492 | 0.461 | 94.7 | 0.401 | 0.488 | 90.7 | 1 | 3 | 1.523 | 103 | 527 | 605 | 2.64 |
| JB470 | 2 | 0.492 | 0.462 | 96 | 0.401 | 0.49 | 92 | 1 | 3 | 1.523 | 103 | 527 | 605 | 2.64 |
| JB490 | 2 | 0.502 | 0.468 | 94.5 | 0.422 | 0.514 | 89.6 | 1 | 3 | 1.523 | 103 | 527 | 605 | 2.64 |
| JB510 | 2 | 0.519 | 0.471 | 91.5 | 0.456 | 0.526 | 84 | 1 | 2 | 1.523 | 103 | 527 | 605 | 2.64 |
2. Technical requirements
| Number | Thickness(mm) | Atj(nm) | A0(nm) | TAO(%) | K |
| JB400 | 2 | 400±10 | 560 | ≥86.0 | ≥0.6 |
| JB420 | 2 | 420±10 | 560 | ≥86.0 | ≥0.6 |
| JB450 | 2 | 450±10 | 560 | ≥89.5 | ≥0.6 |
| JB470 | 2 | 470±10 | 560 | ≥89.5 | ≥0.8 |
| JB490 | 2 | 490±10 | 580 | ≥89.5 | ≥1.2 |
| JB510 | 2 | 510±10 | 600 | ≥89.5 | ≥1.2 |
3. Bubble, fringe and stress levels
| Number | Bubble | Stripes | Stress |
| JB400 | C-B | 3C | 3 |
| JB420 | C-B | 3C | 3 |
| JB450 | C-B | 3C | 3 |
| JB470 | C-B | 3C | 3 |
| JB490 | C-B | 3C | 3 |
| JB510 | C-B | 3C | 3 |
4. The spectra

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