Random Dot Patterns
Diffractive Optical Element (DOE)
Pattern Size @ 100 mm Distance (@ Design Wavelength) | Pattern Angles (@ Design Wavelength) | ||||||||
DOE Item # | Description | Design Wavel. | a | b | d | α | β | δ | Optimum Wavelength Range |
FDE-R332 | 33000-Dot Pseudo-Random | 830 nm* | 136.9 mm | 114.6 mm | 76.3 mm | 68.8° | 59.6° | 41.7° | 820 – 850 nm |
FDE-R335 | 33000-Dot Pseudo-Random | 645 nm* | 101.3 mm | 84.8 mm | 56.4 mm | 53.7° | 45.9° | 31.5° | 630 – 660 nm |
FDE-R372 | 40100-Dot Pseudo-Random | 850 nm* | 135.6 mm | 114.9 mm | 72.0 mm | 68.3° | 59.7° | 39.6° | 825 – 870 nm |
FDE-R373 | 31806-Dot Truely-Random | 830 nm* | 146.9 mm | 118.5 mm | 86.9 mm | 72.6° | 61.3° | 47.0° | 800 – 890 nm |
FDE-R374 | 47708-Dot Truely-Random | 830 nm* | 146.9 mm | 118.5 mm | 86.9 mm | 72.6° | 61.3° | 47.0° | 800 – 890 nm |
FDE-R375 | 29594-Dot Pseudo-Random | 830 nm* | 146.7 mm | 118.5 mm | 86.5 mm | 72.5° | 61.3° | 46.8° | 810 – 850 nm |
FDE-R384 | 51978-Dot Truely-Random | 640 nm* | 162.8 mm | 97.5 mm | 130.4 mm | 78.3° | 52.0° | 66.2° | 610 – 660 nm |
FDE-R385 | 101050-Dot Truely-Random | 640 nm* | 167.4 mm | 100.4 mm | 133.9 mm | 79.9° | 53.3° | 67.6° | 610 – 660 nm |
*Large-angle pattern that due to its symmetry properties is subject to geometrical distortion, if the DOE is used at laser wavelengths significantly different (Δλ > 50nm) from the design wavelength.