Product type: Interference Filter. Application: Medical, Thermal Image. Model: SRY49.
Overview
Optical Filters Lens for Optical Instruments: an optical filter made from Glass. Listed geometry: thickness 1mm-2mm. Optical / electrical data: bandwidth 3-50nm. Surface quality 60-40; flatness 1/4 Lambda. Listed for Medical and Thermal Image applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Interference Filter |
| Shape | Customized |
| Fwhm | 3-50nm |
| Surface Quality | 60-40 |
| Flatness | 1/4 Lambda |
| Usage | Medical, Thermal Image |
| Thickness Range | 1mm-2mm |
| Model NO. | SRY49 |
| Color | Blue |
| Principle | Selective Absorption Filter |
| Angle of incidence | 0° |
| Tolerance | +/-0.05mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| CWL(nm) | FWHM(nm) | Tmax(%) | Blocking Wavelength Range | Blocking | Size |
| 295 | 12+/-2nm | T≥20% | 200-2000nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 420 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 465 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 510 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 525 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 562 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 589 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 605 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 620 | 8+/-2nm | T≥45% | 200-1100nm | OD6 | φ10 φ12 φ15 |
| 625 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 665 | 8+/-2nm | T≥45% | 200-2000nm | OD6 | |
| 730 | 10+/-2nm | T≥80% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 870 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 900 | 25+/-2nm | T≥85% | 200-1200nm | OD5 | φ30 |
| 915 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 920 | 20+/-2nm | T≥20% | 200-1200nm | T<10-4 | φ30 |
| Diameter | 2mm to 200mm |
|---|---|
| Diameter Tolerance | +0.00/-0.1 or customer size |
| Material | N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc. |
| Surface Quality | 80-50 to 10/5 |
| Flatness | 1/4 lambda |
| Thickness Tolerance | +0.00/-0.05mm |
| Standard wavelength | 270nm,311,360,380,473,532,650,780,808,850,904,940,1064 and 1900nm. |
| FWHM | 5nm to 50nm |
| Transmission | 60% to 99% |
| Average blocking | OD6 |
What to specify when you request a quote
- Spectral target — listed as “3-50nm”; 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 — listed as “0°”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “1mm-2mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — listed as “60-40”; quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Color Filter Glass Materials for High-Performance Optical Screening and Imaging. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is Optical Glass Colour Filter.
