Blackened Aperture (BSS Series)
Overview
BSS Series blackened apertures: SS-304 with hard chemical black coating on both faces, effectively reduces reflection and stray light, ø9.5mm standard disc, holes from 5-25µm, for low-stray-light precision optical systems.Description
【Product Overview】
The BSS Series blackened apertures are made from SS-304 stainless steel with a hard chemical black coating on both faces, effectively reducing surface reflection and stray light for precision optical systems with strict reflection control. ø9.5mm standard disc, hole sizes from 5 to 25µm.
【Key Features】
(1) Hard chemical black coating on both faces, significantly reduces reflection and stray light;
(2) SS-304 substrate, corrosion resistant and stable;
(3) ø9.5mm standard disc, thickness 0.013-0.050mm;
(4) Circularity > 1.5µm, centering ±0.125mm;
(5) Hole sizes 5-25µm, larger sizes on request.
【Typical Applications】
Low-stray-light spatial filtering, dark-field optical systems, laser beam cleanup, high-contrast imaging and measurement systems.
Specifications
| Material | SS-304 + hard chemical black coating on both faces |
| Outer diameter | 9.5mm (+0.025 / -0.050mm) |
| Thickness | 0.013-0.050mm |
| Hole range | 5-25µm (larger sizes on request) |
| Coating | Hard chemical black coating on both faces, reduces reflection and stray light |
| Circularity | > 1.5µm |
| Centering | ±0.125mm |
Technical Data
规格表 / Specifications
| 项目 Item | 规格 Specification |
|---|---|
| 外径 Diameter | 9.5mm（+0.025 / -0.050mm） |
| 厚度 Thickness | 0.013-0.050mm |
| 材质 Material | SS-304 + 双面硬化学黑化涂层 |
| 孔径范围 Hole Range | 5-25µm |
| 圆度 Circularity | > 1.5µm |
| 中心定位 Centering | ±0.125mm |
数据来源：Lenox Laser 光学目录