Cyan-Blue Selective Absorption Glass Filters are optical filters that effectively absorb light in th...
Purple selective absorption glass filters are optical filters that selectively absorb purple light of specific wavelengths. They are primarily used to filter or suppress light in the purple wavelength range while allowing light of other wavelengths to pass through. Due to their unique optical properties, purple selective absorption glass filters are widely used in various fields such as optical systems, imaging equipment, spectral analysis, art, and design, particularly in applications requiring precise spectral control.
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 | |||||||
| ZB1 | 2 | 0.519 | 0.018 | 0.2 | 0.16 | 0.016 | 0.6 | 1 | 3 | 1.524 | 89 | 519 | 589 | 2.53 |
| ZB2 | 2 | 0.158 | 0.02 | 0.2 | 0.16 | 0.017 | 0.7 | 1 | 2 | 1.495 | 58 | 551 | 655 | 2.4 |
| ZB3 | 2 | 0.165 | 0.011 | 0.1 | 0.166 | 0.01 | 0.2 | 1 | 3 | 1.495 | 57 | 538 | 636 | 2.4 |
2. Technical requirements
| Number | Thickness(mm) | 300(nm) | 360(nm) | 400(nm) | 480(nm) | 700(nm) | 710(nm) | 720(nm) | 800(nm) |
| ZB1 | 2 | ≥70.0 | ≤6.0 | ≤4 | |||||
| ZB2 | 2 | ≥31.0 | ≥78.2 | ≤3.7 | ≤9.2 | ≥80.4 | |||
| ZB3 | 2 | ≥18.0 | ≥78.2 | ≤0.2 | ≤10 | ≥80.4 |
3. Bubble, fringe and stress levels
| Number | Bubble | Stripes | Stress |
| ZB1 | C-B | 4 | 3 |
| ZB2 | C-B | 4 | 3 |
| ZB3 | C-B | 4 | 3 |
4. The spectra

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