Coating:

Vacuum Deposited Chrome, OD >3.0

Dimensional Tolerance (inches):

±0.02

Frequency (lp/mm):

120

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Float Glass

Optical Density OD (Average):

3.00

Dimensions (inches):

0.5 x 0.5

Surface Quality:

60-40

Thickness (mm):

1.50

Type:

Metric

Dimensional Tolerance (mm):

± 0.02

Line to Line Parallelism (arcsec):

≤2

Parallelism of Pattern to Substrate (°):

±1

Surface Flatness (P-V):

1λ

Regulatory Compliance

RoHS 2015:

Compliant

Reach 209:

Compliant

Certificate of Conformance:

View

Product Family Description

Chrome on Glass
High Tolerance
Superior to Etched and Filled Rulings
Lines Parallel to Edge
English and Metric Versions Available

High Precision Ronchi Rulings are excellent for evaluating resolution, field distortion, and parfocal stability. The glass targets are coated with vacuum-deposited chrome and have a float glass substrate. English and Metric version are available with various Linepairs Per Inch (LPI) and Linepairs Per Millimeter (lp/mm) measurements. High Precision Ronchi Rulings are offered in 0.5”, 1", 2", and 4" squares.

0.5" x 0.5" (120 lp/mm), Ronchi Ruling

Regulatory Compliance

Product Family Description