Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography.
Overview
Diameter 12mm Optical Glass Neutral Density Filter: a neutral density filter made from Optical Glass. Listed geometry: diameter 12mm, thickness 1.1mm, single-lens shape. Optical / electrical data: transmittance >95%. Coating: HC; surface quality 40/20;60/40. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Diameter | 12mm |
| Thickness | 1.1mm |
| Transmittance | >95% |
| Coating | HC |
| Surface Quality | 40/20;60/40 |
| Usage | Lighting, Medical, Optical, Photography |
| Diameter Tolerance | -0.1 |
| Thickness Tolerance | +/-0.1 |
| Transmission | 10% |
| Custom Made | Yes |
| Supplier | Changchun Realpoo Photoelectric Co., Ltd. |
What to specify when you request a quote
- Spectral target — listed as “>95%”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — give the blocking range and optical density (OD) the system needs.
- Angle of incidence — interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “12mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Optical Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — listed as “40/20;60/40”; quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see How to Select Neutral Density Filter Glass for Optical Instruments. For an application example, read Precision Neutral Density Filter Glass for Appliance Optical Sensors. A related standard product is Neutral Density (ND) Filter.
