Overview
The 22X38X3mm 500-750nm Coated Optical Dichroic Filter is supplied as a dichroic filter made from Schott N-BK7. Listed geometry: size 22.0×38.0+0.0/-0.2mm, thickness 3.0+/-0.2mm. Typical applications: . fluorescence microscopy. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Schott N-BK7 |
|---|---|
| Thickness | 3.0+/-0.2mm |
| Parallelism | <3arcmin |
| Clear aperture | >90% |
| Materials we already use | optical glass, materials, and even some plastics. |
| Dimensions | 22.0×38.0+0.0/-0.2mm |
| ROC1 | infinity |
| ROC2 | infinity |
| Chamfer | 0.1-0.3mmx45deg |
| Standard | MIL-PRF-13830B |
| Applications | . fluorescence microscopy |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Dichroic Filter | Material: | Schott N-BK7 |
| Dimensions: | 22.0×38.0+0.0/-0.2mm | |
| Thickness: | 3.0+/-0.2mm | |
| ROC1: | infinity | |
| ROC2: | infinity | |
| Surface quality: | S1&S2:60-40 | |
| Parallelism: | <3arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | 0.1-0.3mmx45deg | |
| Standard: | MIL-PRF-13830B |
What to specify when you request a quote
- Spectral target — 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 “3.0+/-0.2mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Schott N-BK7”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Dichroic Filter Glass: Selecting Substrates for Precision Optical Separation. For an application example, read Dichroic Filter Glass for Smart Appliance Lighting Modules. A related standard product is Dichroic Filter.
FAQ
What is the 22X38X3mm 500-750nm Coated Optical Dichroic Filter made of? expand_more
It is listed as Schott N-BK7. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives size 22.0×38.0+0.0/-0.2mm, thickness 3.0+/-0.2mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
Where is this dichroic filter used? expand_more
Listed applications: . fluorescence microscopy.
What should I include in a quote request? expand_more
Include spectral target, blocking, angle of incidence, size and thickness and substrate, plus quantity and a drawing if the part is custom.
