Product type: Ball Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 99.
Overview
The Dia 50.8mm Optics Sapphire Multi-Layer Film Coating Hemisphere Optical Lenses is supplied as an optical lens made from Optical Glass. Listed geometry: diameter 1mm-150mm, thickness as Required, ball, hemisphere shape. Optical / electrical data: transmittance >95%. Coating: HC; surface quality 60-40, 40-20, 20-10, 10-5. 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 | Ball Lenses |
| Shape | Ball, Hemisphere |
| Diameter | 1mm-150mm |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HC |
| Surface Quality | 60-40, 40-20, 20-10, 10-5 |
| Clear Aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 99 |
| Lenses Color | Clear |
| Polished | Yes |
| Centration | 3 Arc Minute or Better |
| Diameter Tolerance | +0/-0.1 |
| Bevel | 0.2X45degree |
| Thickness Tolerance | +/-0.1 |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| Name | Dia 50.8mm Optics Sapphire Multi-layer Film Coating Half Ball Optical Lenses |
|---|---|
| Material | Sapphire or Other Optical Glass |
| Design Wavelength | 633nm |
| Surface Figure | λ/2 |
| Diameter Tolerance | +0/-0.1 |
| Paraxial Focal Length | +/-2% |
| Centration | 3 Arc Minute |
| Bevel | 0.2mm×45 ° |
| Surface Quality | 20-10 or as required |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “1mm-150mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “60-40, 40-20, 20-10, 10-5”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “3 Arc Minute or Better”; state centration and edge chamfer.
- Coating — listed as “HC”; 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).
