Product type: Convex Lens. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 86.
Overview
Low Index of Refraction Optical Coated Calcium Fluoride Double-Convex Lenses: an optical lens made from Optical Glass. Listed geometry: thickness as Required, single-lens shape. Optical / electrical data: wavelength 350 – 7000nm, transmittance >95%. Coating: HMC; surface quality 60-40. It is used in 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 | Convex Lens |
| Shape | Single-lens |
| Thickness | as Required |
| Wavelength Range | 350 – 7000nm |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | 60-40 |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 86 |
| Lenses Color | Clear |
| Bevel | Protective Bevel as Needed |
| Surface Accuracy | 1lambda |
| Centering | <3arcmin |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| Product Name | Low Index of Refraction Optical Coated Calcium Fluoride Double-Convex Lenses |
|---|---|
| Shape | Double-Convex |
| Material | Calcium Fluoride(CaF2) |
| Calcium Fluoride | Calcium Fluoride is often used in spectroscopic windows and lenses due to its high transmission from 350nm to 7μm. |
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 “60-40”; 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 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 Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. 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).
