Product type: Spherical Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 39.
Overview
Diameter 1mm to 300mm Optical Bk7 Plano-Convex/Bi-Convex Glass Lenses is an optical lens made from Optical Glass. Listed geometry: thickness as Required, spherical lenses shape. Optical / electrical data: transmittance >95%. Coating: HMC; surface quality 40-20 or better. Typical applications: Lighting, 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 | Optical Glass |
|---|---|
| Type | Spherical Lenses |
| Shape | Spherical Lenses |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | 40-20 or better |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 39 |
| Lenses Color | Clear |
| Polished | Yes |
| Bevel | Protective bevel as needed |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| Product Name | Diameter 1mm to 300mm Optical IR Plano-Convex/Bi-Convex Glass Lenses |
|---|---|
| Shape | Plano-Convex/Bi-Convex |
| Material | IR material |
| Various Coating Options | Uncoated, MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, VIS 0°, YAG-BBAR, and NIR II |
| 1.Material | All kinds of IR material |
|---|---|
| 2.Dimensional tolerances | 0/-0.05mm |
| 3.Clear aperture | >90% |
| 4.Centration | 1 arc minute |
| 5.Surface quality | Infrared 40-20 |
| 6.Edge Chip | <0.1mm |
| 7.Bevel | Based on clients' requests |
| 8.Coating | Apply Infrared AR coating or based on client requests |
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 — listed as “40-20 or better”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “Protective bevel as needed”; state centration and edge chamfer.
- Coating — listed as “HMC”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica and Other Glass Materials for Machined Components. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Fused Silica Glass Wafers for Precision Appliance Electronics. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
