Product type: Concave Lens. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 31.
Overview
The 450nm~700nm Coating Bi-Concave Lenses with Optical Glass is supplied as an optical lens made from Optical Glass. Listed geometry: thickness as Required, single-lens shape. Optical / electrical data: transmittance >95%. Coating: HMC; surface quality as Required. Listed for Lighting, Medical, Optical and Photography applications. 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 | Concave Lens |
| Shape | Single-lens |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | as Required |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 31 |
| Lenses Color | Clear |
| Polished | Yes |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| Product name | 450nm~700nm Coating Bi-concave Lenses with Optical Glass |
|---|---|
| Shape | Bi-concave |
| Description | Double-Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths. |
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 “as Required”; quote surface figure (λ) and scratch-dig.
- Centring and edges — 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 Wafer Production: A Step-by-Step Manufacturing Guide. 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).
