Double-Sided Ground Glass Diffusers — HSD Series

From $21 USD

Product description

HSD diffusers use N-BK7 optical glass, as specified by every listed model. Both sides are ground.

The eight standard models combine 25.4 mm or 50.8 mm diameter with 120, 220, 600 or 1500 grit. They are 2 mm thick and uncoated.

Coarser 120 / 220 grit gives broader scattering with lower transmission; finer 600 / 1500 grit gives less diffuse scattering and higher transmission. The source describes use where a Gaussian diffuser is needed.

ground-glass diffuser input and scattered transmission ray illustration — Schematic
Dimensions in mm unless otherwise stated.

For the same grit, double-sided ground glass has a larger scattering angle and lower transmission than single-sided ground glass. Align the diffuser according to the application; the ground surface is placed away from the light source as described by the source.

Other coating versions are custom inquiries, not additional standard models. Illustrations are reference views, not machining drawings.

General specifications

General specifications are from this series table. Individual model surface finish and specifications take precedence.

Material: N-BK7

Thickness: 2.0 mm

Thickness tolerance: ±0.2 mm

Surface quality (scratch / dig): 80/50

Polished-surface flatness (fringes): 8

Clear aperture: >90% CA

Parallelism: ≤3 arcmin

Available specifications

USD unit prices. Shipping, taxes and dispatch timing are confirmed with your quotation. Select models and quantities to build your quote list.

8 models

Dia. = diameter. Units remain shown in each heading.

												Quote
HSD-025-120	N-BK7 optical glass	>90%	25.4	2	120	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$21	Quantity for HSD-025-120

HSD-025-220	N-BK7 optical glass	>90%	25.4	2	220	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$21	Quantity for HSD-025-220

HSD-025-600	N-BK7 optical glass	>90%	25.4	2	600	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$21	Quantity for HSD-025-600

HSD-025-1500	N-BK7 optical glass	>90%	25.4	2	1500	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$25	Quantity for HSD-025-1500

HSD-050-120	N-BK7 optical glass	>90%	50.8	2	120	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$25	Quantity for HSD-050-120

HSD-050-220	N-BK7 optical glass	>90%	50.8	2	220	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$25	Quantity for HSD-050-220

HSD-050-600	N-BK7 optical glass	>90%	50.8	2	600	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$25	Quantity for HSD-050-600

HSD-050-1500	N-BK7 optical glass	>90%	50.8	2	1500	Double-sided ground	+0.0/-0.25mm	±0.2mm	<3 arcmin	Uncoated	$25	Quantity for HSD-050-1500

Curves

Source angular-intensity curve followed by the source transmission reference; titles and model legends remain unchanged. The transmission graph identifies HYD models and is a shared reference linked by the source HSD page; it does not establish HSD model transmission.

Technical notes

Review the material, dimensions and other specifications listed for the individual model. Check any available curves against the model's stated operating range.

Illustrations and printable specification summaries are reference information, not manufacturing drawings. Confirm technical suitability and final requirements with your quotation.

Quote list

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