Product type: Flat Lens. Application: Medical, Optical. Model: yt873.
Overview
Large Size Optical Glass High Reflective Mirror: an optical mirror made from Optical Glass. Listed geometry: diameter +0.0/-0.15 mm, size 1-150mm, single-lens shape. Optical / electrical data: transmittance >95%. Coating: HC; surface quality 60/40, 40/20 or Better. It is used in Medical and Optical. 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 | Flat Lens |
| Shape | Single-lens |
| Dimension | 1-150mm |
| Transmittance | >95% |
| Coating | HC |
| Surface Quality | 60/40, 40/20 or Better |
| Clear Aperture | 90% |
| Usage | Medical, Optical |
| Model NO. | yt873 |
| Lenses Color | Clear |
| Diameter Tolerance | +0.0/-0.15 mm |
| Thickness Tolerance | +0.0/-0.1 mm |
| Bevel | 0.25mm×45 ° |
| Surface Figure | λ/4 |
| Polished | Yes |
| Supplier | Changchun Yutai Optics Co., Ltd. |
Technical data
| Material | optical glass |
|---|---|
| Dimension | 20-150 mm |
| Dimensional Tolerance | +0/-0.15 mm |
| Thickness Tolerance | +0.1, -0.1 mm |
| Centration | 3 arc minutes |
| Protective Bevel | 0.25 mm x 45° |
| Surface Quality | 60-40 scratch and dig |
| Coating | with reflective coating |
| R | >88%, >92%, >95% |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “1-150mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “60/40, 40/20 or Better”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “0.25mm×45 °”; 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 Windows for UV and Laser Optical Systems. How parts like this are machined and finished is covered in Laser Glass Machining for Precision Micro Features. For an application example, read How to Handle and Maintain Precision Glass Components in Laser Systems. Before sending a drawing, check Technical Guide to Glass Thickness and Flatness Requirements. A related standard product is Laser Beam Splitter Glass Sheet.
