International Journal of Optics / 2019 / Article / Tab 2

Research Article

Optical and Reflective Characteristics Measurement and Focal Length Calculation of a Hollow Tetrahedral Corner and a Solid Highly Retroreflective Cubes

Table 2

The number of Newton ring and focal length for each case individually.

N = = [m]ND[mm]δ [μ]R[m2/str][m−1]f [m]

6.52502.2501.2560.3-0.01194-83.75

5.53122.0501135.19-0.00557-179.2

45001.8500.75300.14-0.00511-195.6

36251.5500.5600.55-0.00410-243.9

212501.14500.252500.21-0.00300-300.0

120001.0500.53200-0.00203-492.6

0.525000.5500.1255120-0.00112-892.8

0.345000.2500.0756212-0.00081-1234

0.19654000.2500.056852-0.00051-1960

We are experiencing issues with article search and journal table of contents. We are working on a fix as to remediate it and apologise for the inconvenience.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.