Product type: Bi-Concave Lenses. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc. Model: RAY-XS021#.
Overview
The Premium Fused Silica Biconcave Lenses for Optical Precision is supplied as an optical lens made from Optical Glass. Listed geometry: single-lens shape. Optical / electrical data: transmittance >95%. Coating: Ar.14, Ar.16, Ar.18, Ar.33 Coated. Typical applications: Lighting, Medical, Optical, Photography and Laser. 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 | Bi-Concave Lenses |
| Shape | Single-lens |
| Transmittance | >95% |
| Coating | Ar.14, Ar.16, Ar.18, Ar.33 Coated |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc |
| Model NO. | RAY-XS021# |
| Lenses Color | Clear |
| Products Name | Silica Bi-Concave Lenses |
| Optional I | UV FUSED SILICA |
| Optional II | Equivalent UV FUSED SILICA |
| Main Optical Tech Specification | Tech Data |
| Main Cooperation Materials Manufacturers | CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Optional I: | UV FUSED SILICAfrom CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC |
|---|---|
| Optional II: | Equivalent UV FUSED SILICAMade in China, C-laser own brands |
| Tech Data | Description |
|---|---|
| Lens Shape | Bi-Concave (Double Concave) |
| Material | UV FUSED SILICA |
| Surface Quality | 20-10 scratch-dig |
| Surface Flatness | λ/8 |
| Surface Accuracy, Irregularity | λ/8 |
| Surface Accuracy, Power | 1.5 λ |
| Centration | ≤3 arc min |
| Chamfers | 0-0.8 mm face width |
| Chamfers Angle Tolerance | 45° ±15°, typical |
| Focal Length Tolerance | ±1 % |
| Clear Aperture | ≥central 90% of diameter |
| Effective Focal Length(EFL) | From -50mm to -1000mm |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — 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 — listed as “Ar.14, Ar.16, Ar.18, Ar.33 Coated”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read AR Coated Glass for Appliance Touch Screens: Specs and Selection. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is AR-Coated High-Transparency Optical Glass.
