Table 1.
Focusing characteristics of USSL designs
| USSL | Focal length (μm) | Focal spot distance (μm) (LSSL–RSSL) | Focusing efficiency (%) | |||||
|---|---|---|---|---|---|---|---|---|
| Design | Result | Design | Result | Result | ||||
| Packed pattern | Shifted bezel pattern | Packed pattern | Shifted bezel pattern | Packed pattern | Shifted bezel pattern | |||
| Red | 218 | 220 | 210 | 42.71 | 38 | 41 | 61.18 | 60.61 |
| Green | 190 | 190 | 190 | 42.71 | 38 | 41 | 60.96 | 58.29 |
| Blue | 154 | 140 | 140 | 42.71 | 40 | 44 | 64.92 | 62.98 |
Design parameters, variations in the focal length and the focal spot distance between the LSSL and RSSL, and focusing efficiency at the focal length for the wavelength-dependent design (Fig. 4) of the arc ribbon USSL array based on the packed pattern and shifted bezel pattern