Diffractive Optical Elements

$Diffractive Optical Elements$

$Diffractive Optical Elements - Image 2$

$Diffractive Optical Elements - Image 3$

Multi Lines

			Pattern Size @ 100 mm Distance (@ Design Wavelength)				Pattern Angles (@ Design Wavelength)
DOE No	Description	Design Wavelength	a (mm)	b (mm)	c (mm)	d (mm)	α	β	γ	δ	Optimum Wavelength Range	Image
DOE-198	31 Lines, Square	450 nm	72.8	51.5	1.7	51.5	40.0°	28.9°	0.96°	28.9°	425– 490 nm
DOE-213	11 Lines, Square	635 nm	76.7	54.4	5.4	54.4	42.0°	30.4°	3.0°	30.4°	530-670 nm
DOE-233	7 Lines, Square	635 nm	54.0	38.2	6.4	38.2	30.2°	21.6°	3.6°	21.6°	530-670 nm
DOE-250	5 Lines (Rectangular)	660 nm	55.0	10.9	2.7	53.9	30.8°	6.2°	1.6°	30.2°	590-670 nm
DOE-251	7 Lines (Rectangular)	650 nm	15.5	9.0	1.5	12.6	8.9°	5.2°	0.8°	7.2°	590-730 nm
DOE-252	5 Lines (Square)	635 nm	42.7	30.2	7.5	30.2	24.1°	17.2°	4.3°	17.2°	530 – 670 nm
DOE-254	25 Lines (Square)	660 nm	68.4	48.3	2.0	48.3	37.7°	27.2°	1.1°	27.2°	530 – 670 nm
DOE-284	41 Lines (Rectangular)	660 nm	133.4	104.0	2.6	78.0	67.4°	54.9°	1.4°	42.6°	600 – 700 nm
DOE-350	15 Lines (Rectangular)	520 nm	65.5	42.1	3.0	50.2	36.3°	23.8°	1.7°	28.2°	480 – 550 nm

Special Patterns

DOE No	Description	Design Wavelength	Pattern Size @ 100 mm Distance (@ Design Wavelength)	Pattern Angles (@ Design Wavelength)	Optimum Wavelength Range	Image
DOE-215	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
DOE-234	Viewfinder (Lines Square)	633 nm	Width: 61 mm Height: 61 mm Diagonal: 86 mm	Width: 34° Height: 34° Diagonal: 47°	590 – 730 nm
DOE-260	Viewfinder (Circle + Cross)	645 nm	Width Cross: 37 mm Circle Ø: 18.3 mm	Width Cross: 21° Circle Ø: 10.5°	570 – 750 nm
DOE-261	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
DOE-262	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
DOE-345	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
DOE-394	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
DOE-236	Solid Line Square	633 nm	Width: 60.2 mm Height: 60.2 mm Diagonal: 85 mm	Width: 33.5° Height: 33.5° Diagonal: 46°	530 – 650 nm
DOE-256	Square Grid 51 x 51 Lines	660 nm	Width: 39 mm Height: 39 mm Diagonal: 55 mm Line Spacing: 0.77 mm	Width: 22° Height: 22° Diagonal: 31° Angle betw. Lines: 0.44°	530 – 660 nm
DOE-259	5 Rings	645 nm	Width: 51 mm Line Spacing: 5.1 mm	Width: 29° Line Spacing: 2.8°	530 – 700 nm
DOE-269	10 Rings	515 nm	Width: 96.2 mm Line Spacing: 4.8 mm	Width: 51.4° Line Spacing: 2.6°	488 – 532 nm
DOE-354	Square Grid 10×10 Lines	658 nm	Width: 72.8 mm Height: 72.8 mm Diagonal: 102.9 mm Line Spacing: 8.1 mm	Width: 40.0° Height: 40.0° Diagonal: 51.4° Angle betw. Lines: 4°	620 – 680 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.

Note:

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Diffractive Optical Elements

Multi Lines

Special Patterns

Note:

Powell Line Lens

Aspheric Collimator Lens