Product type: Achromatic Lenses. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging,Detection, etc. Model: RAY-LH256#.
Overview
High-Performance N-Fk5 Near UV Optical Lens for Precision Imaging Applications is an optical lens made from Optical Glass. Listed geometry: single-lens shape. Optical / electrical data: wavelength 405nm or custom, transmittance >95%. Coating: Nuv Coated; surface quality 40-20 or custom. It is used in Lighting, Medical, Optical, Photography and Laser. 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 | Achromatic Lenses |
| Shape | Single-lens |
| Transmittance | >95% |
| Coating | Nuv Coated |
| Surface Quality | 40-20 or custom |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging,Detection, etc |
| Model NO. | RAY-LH256# |
| Lenses Color | Clear |
| Products Name | Near-UV (NUV) Achromatic Lenses |
| Alias | NUV Achromatic Lenses, Near-UV achromatic lens, NUV Lens, Near-UV lens |
| Main Tech Specification | Universal Optical Tech Data |
| Optical Lens Type | Achromatic Lens |
| Focal Length Tolerance (%) | ± |
| Focal Length Specification Wavelength (nm) | 405nm or custom |
| Centering (arcmin) | <1 |
| Power (P-V) @ 632.8nm | 1.5λ or custom |
| Bevel | Protective bevel as needed |
| Irregularity (P-V) @ 632.8nm | 4λ or custom |
| Wavelength Range (nm) | 345 – 700 |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Universal Optical Tech Data | |
|---|---|
| Optical Lens Type: | Achromatic Lens |
| Focal Length Tolerance (%): | ±2 or custom |
| Focal Length Specification Wavelength (nm): | 405nm or custom |
| Surface Quality: | 40-20 or custom |
| Centering (arcmin): | <1 |
| Coating: | UV-VIS (345-700nm)or custom |
| Bevel: | Protective bevel as needed |
| Wavelength Range (nm): | 345 – 700 |
| Size/Substrate/Coating Tech Data | |
| Dia. | 6.25-50mm or custom |
| EFL | 12.5-200mm or custom |
| BFL | 10.22-192.01 or custom |
| Substrate | N-FK5 / F2HTETC. |
| Coating | UV-VIS(345-700nm) coatingor custom |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “±”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “40-20 or custom”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “Protective bevel as needed”; state centration and edge chamfer.
- Coating — listed as “Nuv Coated”; 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 Flat Glass Polishing Process for Precision Substrates. For an application example, read How to Handle and Maintain Precision Glass Components in Laser 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).
