Diffuser Selection Guide
Diffuser Selection Guide
Type Effective Wavelength
Range (nm)
Diffussion Half
Angle (°)
White Diffusing Glass and Broadband Hybrid Diffusers
White Diffusing Glass
Broadband Hybrid Diffusers
Thickness (mm): 1.6 nominal
Length and Width Tolerance (mm): ±0.76
Diameter Tolerance (mm): ±0.25
Edges: Square: Cut and Seamed
Circular: Ground
• Available in Sizes Ranging from 5mm
Diameter to 250mm Square
• Low Scatter Loss
• Evenly Ground Surface for Even Diffusion
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TECHNICAL NOTE
Diffusers are an optical component used to
evenly distribute light from a source while eliminating
bright spots. A perfected diffuser should
create Lambertian scattering where the radiance
is independent of angle. With applications
ranging from projector screens to targets in imaging
applications it is important to understand
which diffuser type is right for you. Edmund
Optics® offers three types of optical diffusers:
holographic, white diffusing glass, and ground
glass. Please view the following chart for a brief
evaluation of the diffusers.
To view the full selection guide, visit www.edmundoptics.co.uk/diffuser-guide
Transmission/
Reflection
Price
Range
Ground Glass 350 - 2000 10, 25 Medium £
UV Ground Glass 200 - 2200 15 Medium £
Reflective Diffusers 120 - IR 25 High ££
Colored Glass Diffusers Red, Green, Blue 25 Medium ££
White Diffusing Glass 350 - 700 90 Low ££
Broadband Hybrid Diffusers 350 - 1100 90 Low ££
Holographic 400 - 1600 0.5, 1, 5, 10, 15, 20, 25, 30, 40, 60,
80, 0.2x40, 1x60, 5x30, 10x60 High £££
UV Holographic 200 - 1500 0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50 High £££
Flat Top Holographic Diffusers 400 - 1600 22.5 x 17.5 High £££
White Diffusing Glass
Size
(mm)
Thickness
(mm) Stock No. Price
1-10 11-49 50+
5 Dia. 1.25 #34-467 £20.40 £16.36 Call For OEM Quantity Pricing
5 x 5 1.25 #34-468 £20.40 £16.36
10 Dia. 1.25 #34-469 £20.40 £16.36
10 x 10 1.25 #34-470 £20.40 £16.36
12.5 Dia. 1.25 #34-471 £20.40 £16.36
12.5 x 12.5 1.25 #34-472 £20.40 £16.36
15 Dia. 1.25 #37-975 £25.07 £20.19
25 Dia. 1.25 #34-473 £25.07 £20.19
25 x 25 1.25 #34-474 £25.07 £20.19
50 Dia. 1.25 #34-475 £30.18 £24.01
50 x 50 1.25 #34-476 £30.18 £24.01
75 Dia. 1.25 #34-477 £34.42 £27.84
75 x 75 1.25 #34-478 £34.42 £27.84
100 Dia. 1.25 #34-479 £43.77 £35.49
100 x 100 1.25 #34-480 £43.77 £35.49
200 x 200 1.25 #34-481 £63.32 £50.36
Broadband Hybrid Diffusers
Size
(mm)
Thickness
(mm) Stock No. Price
1-10 11-49 50+
5 Dia. 1.75 #36-603 £28.00 £22.50
Call For OEM Quantity Pricing
5 x 5 1.75 #36-604 £25.07 £20.19
10 Dia. 1.75 #36-608 £25.07 £20.19
10 x 10 1.75 #36-609 £25.07 £20.19
12.5 Dia. 1.75 #36-610 £25.07 £20.19
12.5 x 12.5 1.75 #36-611 £25.07 £20.19
15 Dia. 1.75 #37-974 £30.18 £24.01
25 Dia. 1.75 #36-612 £30.18 £24.01
25 x 25 1.75 #36-613 £30.18 £24.01
50 Dia. 1.75 #36-614 £34.42 £27.84
50 x 50 1.75 #36-615 £34.42 £27.84
75 Dia. 1.75 #36-678 £39.52 £31.66
75 x 75 1.75 #36-616 £39.52 £31.66
100 Dia. 1.75 #36-617 £53.98 £43.14
100 x 100 1.75 #36-618 £53.98 £43.14
200 x 200 1.75 #36-619 £73.52 £58.86
Diameter Tolerance (mm): ±0.5
Length and Width Tolerance (mm): ±0.3
Thickness Tolerance (mm): ±0.1
80
70
60
50
40
30
20
10
0
Typical Spectral Transmission Efficiency Curve
T (%)
0 200 400 600 800 1000 1200 1400 λ (nm)
• Near Lambertian Diffusion Profile
• White Diffusing Glass Designed for Visible Applications
• Broadband Hybrid Diffusers Ideal for Visible and NIR Light Sources
White Diffusing Glass is a semi-opaque diffuser designed to create near Lambertian illumination profiles. Unlike
alternative materials, which create their diffusive properties through a coating or lamination process, White
Diffusing Glass is a solid diffuse material, allowing it to be used in any orientation. Two types of diffusers are
available to achieve optimum performance from the visible spectrum into the IR. White Diffusing Glass has a
thickness of 1.25mm to maximize throughput with even scattering in the visible spectrum. Broadband Hybrid
Diffusers feature a 1.75mm thickness with a textured surface utilizing these two mechanisms of scatter to create
even diffusion that extends into the IR. Both are ideal for applications that require even illumination such as
attenuators or viewing screens. Note: See web for complete datasheets.
Float Ground Glass Diffusers
Dimensions Edges 120 Grit
Stock No.
Price – 120 Grit 220 Grit
Stock No.
Price – 220 Grit 600 Grit
Stock No.
Price – 600 Grit
1-10 11-49 50+ 1-10 11-49 50+ 1-10 11-49 50+
10mm Dia. ground #83-082 £11.47 £10.41
Call For OEM Quantity Pricing
#45-651 £11.47 £10.41
Call For OEM Quantity Pricing
#38-782 £11.47 £10.41
Call For OEM Quantity Pricing
10 x 10mm cut #83-083 £11.47 £10.41 #62-615 £11.47 £10.41 #38-783 £11.47 £10.41
12.5mm Dia. ground #83-418 £11.47 £10.41 #62-616 £11.47 £10.41 #38-784 £11.47 £10.41
12.5 x 12.5mm cut #83-084 £11.47 £10.41 #62-617 £11.47 £10.41 #38-785 £11.47 £10.41
25mm Dia. ground #83-419 £14.03 £12.54 #45-653 £14.03 £12.54 #38-786 £14.03 £12.54
25 x 25mm cut #83-381 £14.03 £12.54 #45-654 £14.03 £12.54 #38-787 £14.03 £12.54
50mm Dia. ground #83-420 £15.72 £14.24 #62-619 £15.72 £14.24 #38-788 £15.72 £14.24
50 x 50mm seamed #83-382 £15.72 £14.24 #45-655 £15.72 £14.24 #38-789 £15.72 £14.24
100mm Dia. seamed #83-383 £39.95 £35.91 #62-620 £39.95 £35.91 #38-790 £39.95 £35.91
100 x 100mm seamed #83-384 £39.95 £35.91 #45-656 £39.95 £35.91 #38-791 £39.95 £35.91
150 x 150mm seamed #83-385 £43.77 £39.31 #47-951 £43.77 £39.31 * – –
200 x 200mm seamed #83-386 £50.57 £45.48 #47-952 £50.57 £45.48 * – –
250 x 250mm seamed #83-387 £68.42 £61.63 #47-953 £68.42 £61.63 * – –
Ground Glass Diffusers
Fused Silica Ground Glass Diffusers
Dimensions Edges Grit Fused Silica
Stock No.
Price
1-10 11-49 50+
5mm Dia. ground 220 #63-222 £37.82 £30.39
Call For OEM Quantity Pricing
6mm Dia. ground 220 #65-891 £37.82 £30.39
10mm Dia. ground 220 #49-155 £37.82 £30.39
10 x 10mm cut 220 #63-223 £37.82 £30.39
12.5mm Dia. ground 220 #63-224 £37.82 £30.39
12.5 x 12.5mm cut 220 #63-225 £37.82 £30.39
15mm Dia. ground 220 #49-156 £39.10 £31.24
20mm Dia. ground 220 #63-226 £39.10 £31.24
25mm Dia. ground 220 #49-157 £41.65 £33.36
25 x 25mm cut 220 #49-158 £41.65 £33.36
50mm Dia. ground 220 #49-237 £73.95 £59.29
50 x 50mm seamed 220 #49-159 £73.95 £68.50
/diffuser-guide
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