Ruled Gratings

the specifications as follow seprately:  1)ruled area <=70*70mm Wavelength Range0.2-0.8μm Grooves Per mm1200L/mm-3600L/mm Diffraction>70% Ruled Gratings 2)Specifications: Ruled area<=7070*70mm Wavelength Range 0.2-15μm Grooves Per mm50L/mm- 2400L/mmDiffraction>70% 3)Concave Gratings Specifications: Ruled area<=7070*70mm Wavelength Range200-900μm Grooves Per mm490L/mm-1200L/mm Diffraction>70%

• wide angle lenses
• custome lens
• Adapter rings
• Conversion lenses
• Custom lenses
• Filter
• optical lens
• Optical grating
• Windows
• Prism