Product type: Thin Film Filter. Application: Medical, Optical, Photography. Model: SP.
Overview
Short-Wave Pass Optical Low Pass Filter Shortpass Filters 830nm with Custom Shape: a CCD / CMOS sensor cover glass made from Glass. Listed geometry: size 2-80mm, thickness 1-2mm. Optical / electrical data: wavelength 830+/-5nm, transmittance T>90%. Surface quality 60/40. Typical applications: Medical, Optical and Photography. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Size | 2-80mm |
| Thickness | 1-2mm |
| Cwl | 830+/-5nm |
| Transmittance | T>90% |
| Surface Quality | 60/40 |
| Usage | Medical, Optical, Photography |
| Thickness Range | 1mm-2mm |
| Model NO. | SP |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Transmission | 350-820nm |
| Blocking | Od2-Od6 |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| CWL | 830+/-5nm |
|---|---|
| Angle of Incidence | 0 ° |
| Product Size | Customized |
| Surface Quality | 60/40 |
What to specify when you request a quote
- Material and grade — listed as “Glass”; name the glass or crystal grade (for example JGS1, N-BK7, Borofloat 33, sapphire) because it fixes the transmission band and thermal limits.
- Diameter or outline — listed as “2-80mm”; give the nominal size and the tolerance you can accept.
- Thickness — listed as “1-2mm”; state nominal thickness and tolerance; thinner windows need tighter flatness control.
- Surface quality and flatness — listed as “60/40”; quote scratch-dig and flatness over the clear aperture, not the whole part.
- Coating — list the wavelength band and the maximum reflectance per surface for any AR coating.
- Clear aperture and edges — define the usable aperture and the edge chamfer.
Engineering guides for this part
For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read Bulk Ordering Glass Windows for Robotic Vacuum Optical Sensors. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is Shortpass Filter.
