Continuously Variable Apodizing Filters
• Bull’s Eye Filter Type Decreases in Density
Radially from Center
• Reverse Bull’s Eye Type Increases in Density
Radially from Center
• Ideal for Eliminating Intensity Variations in
Optical Systems
Apodizing filters are used to create an even illumination
profile in an optical system. Bull’s Eye type filters
feature a high optical density in the center which
decreases continuously to an uncoated edge, and
are commonly used to flatten the intensity profile of
Gaussian beams. The Reverse Bull’s Eye type features
a high optical density coating on the filter’s edge
which decreases continuously to an uncoated center.
End Destiny
Optical Density
0.04
Bullseye Type Filter
D/2 0 D/2
Position
Continuously Variable Neutral Density (ND) Filters
End Destiny
Optical Density
Variable Density Beamsplitter
0.5 0.75 1.5
0.0 0.25 1.25 1.75 2.25
1.0 2.0 2.5 3.0
Position (Inches)
0.04
2.75
End Destiny
End Destiny
Variable Density Beamsplitter
Stepped Density Filter
Optical Density
Optical Density
Stepped Neutral Density (ND) Filters
0.18 0.5 0.75 0.9 1.5
2.0
0.0 0.25 1.25 1.75 2.25
1.0 2.0 2.5 3.0
Position (Inches)
0.04
0.04
Position (Inches)
2.75
Stepped Density Filter
Circular Continuous (Bullseye) Filter
End Destiny
Optical Density
0.04
0.18 0.9 2.0
-0.75 -0.50 -0.25 0 +0.25 +0.50 +0.75
Position (Inches)
Position (Inches)
Circular Continuous (Bullseye) Filter
-0.75 -0.50 -0.25 0 +0.25 +0.50 +0.75
Position (Inches)
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Substrate: B270
Diameter Tolerance (mm): +0,00/-0,20
Thickness (mm): 1,50 ±0,10
Surface Quality: 60-40
Wavelength Range (nm): 400 - 700
Density Linearity (%): ±5 of Optical Density
Continuously Variable Apodizing Filters
Filter Type Density Range 25 mm Diameter 50 mm Diameter
Stock No. Price Stock No. Price
Bull’s Eye 0,04 - 1,0 #64-385 €279,00 #64-389 €349,00
Bull’s Eye 0,04 - 2,0 #64-386 €299,00 #64-390 €369,00
Reverse Bull’s Eye 0,04 - 1,0 #64-387 €279,00 #64-391 €349,00
Reverse Bull’s Eye 0,04 - 2,0 #64-388 €299,00 #64-392 €369,00
• Continuous Linear Adjustment of Optical
Density
• Use in Pairs to Control Beam Transmission
• Ideal for 400 - 700 nm
Continuous Variable Density (ND) Filters
Dimensions
(L x W x T)
0,04 - 1,0 OD 0,04 - 2,0 OD 0,04 - 3,0 OD 0,04 - 4,0 OD
Stock No. Price Stock No. Price Stock No. Price Stock No. Price
3,0" x 1,0" x 0,062" #64-381 €89,00 #41-960 €99,00 #64-382 €129,00 #63-048 €159,00
• 11 Discrete Density Steps
• Design Wavelength of 400 - 700 nm
• Density Neutrality of ±5%
1.0
0.8
0.6
0.4
0.2
Optical Density
0.04
1.0
Stepped Neutral Density (ND) Filters
Dimensions
(L x W x T)
0,04 - 1,0 OD 0,04 - 2,0 OD 0,04 - 3,0 OD
Stock No. Price Stock No. Price Stock No. Price
0.8
0.6
Optical Density
2,0" x 1,0" x 0,062" #32-599 €179,00 #64-383 €189,00 #64-384 €209,00
Kinematic Filter Mounts
• 100 TPI Lockable Fine Adjustment Screws
• Tip/Tilt Range: ±5°
• Three Screw Versions Permit Translation of
Optical Axis
0.4
0.2
0.04
Angular Tip/Tilt Range: ±5°
Linear Resolution: 0,25 mm
Post Compatability: #8 or M4
Filter Mounts
TECHSPEC® Kinematic Filter Mounts Units: mm
Aperture
Minimum
Maximum
Min.
Max.
Size
Optic Size
Optic Size
Thickness
Thickness
Two Adjustment Screws Three Adjustment Screws
Stock No. Price Stock No. Price
25,0 12,7 x 12,7 50,8H 0,5 3,7 #58-874 €126,50 #58-875 €137,50
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