Plano-Convex Lenses, φ40 mm, Focal Distance: 150 mm, Back Focus : 146.29 mm

[Features]
- This optical lens having positive focal length is mainly used for magnification of image and light condensing.
- Made of quart, this product offers high transmittance in all regions from ultraviolet region to infra red ray wavelength region(approximately 900nm).
- Its low thermal expansion coefficient ensures excellent heat resistance.
- This product is usually used with curved surface of lens facing to object.
[Specifications]
- Outer diameter (φmm): 40
- Focus distance (mm): 150
- Bag focus (mm): 146.29
- Medium thickness (mm): 5.42
- Koba meat (mm): 2.51
- Material: Synthetic quartz
- Design wavelength: 587.6nm
- Refractive index: 1.45850/nd
- Chamfer (45°): 0.2 - 0.5mm
- Tolerance range Outer diameter: φ+0/-0.1mm
- Tolerance range Center thickness: ±0.2mm
- Tolerance range Focal length: ±2％
- Tolerance range Surface quality: MIL60-40
- Tolerance range Eccentricity: within 3 minutes (3')