Product type: Spherical Optical Lenses. Application: Lighting, Medical, Optical, Photography. Model: TT Lens 578.
Overview
The Optical Ar Coated Glass Lens for Optical Film Thickness Gauge is supplied as an optical lens made from Optical Glass. Listed geometry: diameter +0/-0.01 or as Required, thickness as Required, single-lens shape. Optical / electrical data: transmittance >95%. Coating: HMC; surface quality 40-20 or Better. 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 | Spherical Optical Lenses |
| Shape | Single-lens |
| Thickness | as Required |
| Transmittance | >95% |
| Coating | HMC |
| Surface Quality | 40-20 or Better |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Lens 578 |
| Lenses Color | Clear |
| Bevel | Protective Bevel as Needed Products Learn More |
| Diameter Tolerance | +0/-0.01 or as Required |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| Name | Optical AR Coated Glass Lens for Optical Film Thickness Gauge |
|---|---|
| Size | Dia 12.7mm, Dia 25.4mm, D50.8mm or others |
| Anti-Reflection Coating Options | MgF2, VIS 0°, VIS-NIR, NIR I, NIR II, VIS-EXT, and YAG-BBAR |
| 1.Material | Domestic or foreign materials are selected based on clients' requests |
|---|---|
| 2.Diameter tolerance | 0/-0.01mm |
| 3.Clear aperture | 90%-100% |
| 4.Tolerance of CT or ET | ±0.02mm |
| 5.Vector Tolerance | ±0.015mm |
| 6.Aperture Tolerance | ±0.02mm |
| 7.Surface Quality | US Standard 10-5,ISO Standard 3X0.063 |
| 8.Curvature Tolerance | ±1.5Lambda |
| 10.Centration | 30 arc seconds |
| 11.Focal Length | ±1% |
| 12.Edge Chip | <0.1mm |
| 13.Bevel | Based on clients' requests |
| 14.Coating | Apply AR or based on client requests |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “+0/-0.01 or as Required”; 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 Products Learn More”; 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 AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. For an application example, read AR Coated Glass for Appliance Touch Screens: Specs and Selection. Before sending a drawing, check Technical Guide to Glass Thickness and Flatness Requirements. A related standard product is AR-Coated High-Transparency Optical Glass.
