Diffraction Gratings

Technical Specification: –
Photographic replica gratings mounted on a plate glass & suitable for visual. Grading size 25 x 25 mm, on glass plate 50 x 38 mm. The grating is of:

• Type : Size (lines/mm)
• A : Size 300
• B : Size 600
• C : Size 2400
• D : Size 7500
• E : Size 15000