Fig 1.
LED modules installations on Chinese saury fishing vessels on-site.
(a) Rectangular vertically mounted lamp (RVL) made in China and (b) circular lamp (CL) made in Chinese Taipei.
Table 1.
Parameters of the rectangular LED module (unit: cm).
Fig 2.
Design of the lamp beads in the virtual circular module (unit: cm).
Fig 3.
Schematic diagram of the spatial relationships between the module and the illuminated area.
Fig 4.
Schematic arrangement of lamp beads in the rectangular-shaped LED module.
Fig 5.
Illumination distributions (a-c) and variations in illuminance values along the x-axis (d-f) of the RVL at different angles.
Fig 6.
Illuminations (a) and attenuation rates (b) of the RVL along the axis of y = 0 m at different angles.
Fig 7.
Illumination distributions (a-c) and variations in illuminance values along the x-axis (d-f) of the RHL at different angles.
Fig 8.
Illuminations (a) and attenuation rates (b) of the RHL along the axis of y = 0 m at different angles.
Table 2.
The maximum illuminance values (lx) and distances to the origin (m) of various configurations at different angles.
Fig 9.
Illumination distributions (a-c) and variations in illuminance values along the x-axis (d-f) of the CL at different angles.
Table 3.
Distances (m) from the origin for illumination curves of 1000 and 10 lx of three module types at different angles.
Fig 10.
Illuminations (a) and attenuation rates (b) of the CL along the axis of y = 0 m at different angles.
Fig 11.
The differences in illumination (a-c) and their three-dimensional distributions (d-f) between RVL and RHL at different angles.
Table 4.
The maximum differences in positive illuminance (lx) and their distances to the origin (m) among various configurations at different angles.
Fig 12.
The differences in illumination (a-c) and their three-dimensional distributions (d-f) between RVL and CL at different angles.