DOE_Viewfinder (Viewfinder)
LD Collimators & Diffractive Optics: Pattern-Generator
Diffractive Optical Element (DOE)
Description:
LD Collimators & Diffractive Optics: Pattern-Generator
Diffractive pattern generators stand out due to their precision, versatility, efficiency, high-quality output, wavelength adaptability, ease of integration, robustness, and cost-effectiveness. These attributes make them a preferred choice in various advanced optical applications, from industrial manufacturing to cutting-edge scientific research.
This article refers to: DOE_Viewfinder (Viewfinder) (LD Collimators & Diffractive Optics: Pattern-Generator ) - Viewfinder
| DOE Item # | Description | Design Wavelength | Pattern Size @ 100 mm Distance (@ Design Wavelength) | Pattern Angles (@ Design Wavelength) | Optimum Wavelength Range | Image |
| FDE-R215 | Viewfinder | 645 nm | Width: 27 mm Height: 17.7 mm Diagonal: 32 mm |
Width: 15.5° Height: 10.1° Diagonal: 18.2° |
570 – 750 nm | 
|
| FDE-R234 | Viewfinder (Lines Square) | 633 nm* | Width: 61 mm Height: 61 mm Diagonal: 86 mm |
Width: 34° Height: 34° Diagonal: 47° |
590 – 730 nm | 
|
| FDE-R260 | Viewfinder (Circle + Cross) | 645 nm | Width Cross: 37 mm Circle Ø: 18.3 mm |
Width Cross: 21° Circle Ø: 10.5° |
570 – 750 nm | 
|
| FDE-R261 | Viewfinder (Dot Circle + Cross) | 635 nm | Width Cross: 11 mm Circle Ø: 8.8 mm Dot Spacing: 1.1 mm |
Width Cross: 6.3° Circle Ø: 5° Angle betw. Dots: 0.63° |
570 – 750 nm | 
|
| FDE-R262 | Viewfinder (Dot Square) | 532 nm | Width: 12.3 mm Height: 12.3 mm Diagonal: 17.4 mm Dot Spacing: 0.5 mm |
Width: 7.0° Height: 7.0° Diagonal: 10.0° Angle betw. Dots: 0.3° |
480 – 670 nm | 
|
| FDE-R288 | Viewfinder | 650 nm | Width: 83.0 mm Height: 53.7 mm Diagonal: 98.9 mm |
Width: 43.7° Height: 27.9° Diagonal: 52.6° |
590 – 730 nm |
|
| FDE-R345 | Viewfinder (Circle + Cross) | 520 nm | Width Cross: 49.9 mm Circle Ø: 24.6 mm |
Width Cross: 28.0° Circle Ø: 14.0° |
500 – 540 nm |  |
| FDE-R394 | Viewfinder | 520 nm | Width: 65.9 mm Height: 65.9 mm Diagonal: 93.2 mm |
Width: 36.5° Height: 36.5° Diagonal: 50.0° |
500 – 540 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.
- Pattern-Generator
