T-R1L3S6P - Positive Variable Line Grating Test Target, 3" x 1"

• 3" x 1" (76.2 mm x 25.4 mm) Variable Line Grating Target
• Resolutions from 1.25 lp/mm to 250 lp/mm
• Determine Resolution of an Optical System
• Vacuum-Sputtered Low-Reflectivity Chrome on Soda Lime Glass
• High-Contrast Positive Reflective Target Available

Optical Specifications
Item #	R1L3S6P	R1L3S6PR
Pattern	LR Chrome	LR Chrome
Background	Clear	Chrome
Surface Flatness	≤15 µm	≤15 µm
Chrome Optical Density	≥3.0	-
Chrome Reflectance	-	LR Chrome: <10% Chrome: >40%

 

NOTES/SPECIFICATIONS:

1. MATERIAL: SODA LIME

2. COATING: OD3 LOW REFLECTIVITY CHROME

3. FACE DIMENSION TOLERANCE: 0.5 mm

4. THICKNESS TOLERANCE: 0.3 mm

5. SURFACE FLATNESS: ≤15 µm

6. OPTICAL DENSITY: ≥3.0 AT 430 nm

7. R1L3S6P IS A POSITIVE TEST TARGET WITH DARK PATTERN AND CLEAR BACKGROUND

8. THE VARIABLE FREQUENCY GRATINGS ARE 1.25 LP/mm, 1.67 LP/mm,2.08 LP/mm,2.50 LP/mm, 2.86 LP/mm, 3.33 LP/mm, 3.85 LP/mm,4.17 LP/mm, 5.00LP/mm,6.67LP/mm, 10.0LP/mm, 12.5LP/mm, 16.67LP/mm, 26.0LP/mm, 50.0LP/mm, 100LP/mm, 200LP/mm, 250LP/mm

Resolutions of Included Line Gratings (lp/mm)

	• 1.25	• 2.08	• 2.86	• 3.85	• 5.00	• 10.0	• 16.67	• 50.0	• 200
	• 1.67	• 2.50	• 3.33	• 4.17	• 6.67	• 12.5	• 26.0	• 100	• 250