Product type: Thin Film Filter. Application: Medical.
Overview
The Thickness 2.9mm Optical Quartz Crystal K9 Bk7 Uncoated Plano Flat Convex Lens is supplied as an optical lens made from Jgs1, Jgs2, CaF2, Zns, H-K9l, B270. Listed geometry: thickness 5mm-10mm. Optical / electrical data: transmittance >95%. It is used in Medical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Jgs1, Jgs2, CaF2, Zns, H-K9l, B270 |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Transmittance | >95% |
| Usage | Medical |
| Thickness Range | 5mm-10mm |
| Color | Transparent |
| Principle | Ar Coating |
| Angle of incidence | 0° |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| Material | N-BK7, UV grade fused silica, JGS1, LasfN9, N-SF11, Sapphite, silicon, and other IR glasses |
|---|---|
| Diameter range | From 1.5mm to 800mm |
| Tolerance | 0.02mm |
| Thickness tolerance | 0.02mm |
| Surface quality | 40/20 |
| Irregularity | Lambda/4 or Lambda/2 |
| Centering | 1 arc min |
| Chamfer | Preotective chamfer |
| Coating | Uncoated or AR coated for visible or UV or infrared wavelength, R<0.5% |
| RoHS | Certificated |
What to specify when you request a quote
- Material — listed as “Jgs1, Jgs2, CaF2, Zns, H-K9l, B270”; name the glass or crystal.
- Geometry — listed as “0°”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica and Quartz Glass: Selecting Materials for Precision Components. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Infrared Window Glass for Smart Home Appliance Sensors. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
