Fig. 1. Diagrams of fabricating V-groove for scattering point backlight plate of plastic optical fiber array. (a) Fabricating V-groove to form plastic fiber scattering point; (b) backlight plate of plastic fiber optic array

Fig. 2. Diagram of light passing through scattering point

Fig. 3. Design schematic of isometric scattering points on the side of POF

Fig. 4. Diagram of V-groove processing

Fig. 5. Testing setup diagram of scattering light power of scattering points of POF

Fig. 6. Relationship among scattering rate, weight mass, and scattering point number. (a) Relationship between scattering rate and weight mass; (b) relationship between weight mass M_i and scattering point number i

Fig. 7. Diagram of knife head assembly of POF processing device

Fig. 8. Diagram of processing equipment for isometric scattering point of POF array

Fig. 9. Microscopic photographs of scattering point on POF side. (a) Front view of scattering point without light; (b) front view of scattering point with light; (c) side view of scattering point

Fig. 10. Photos of scattered points of plastic fiber under different weight mass. (a) M=6 g; (b) M=12 g; (c) M=18 g; (d) M=24 g; (e) M=30 g; (f) M=36 g; (g) M=42 g; (h) M=48 g; (i) M=54 g

Fig. 11. Effect pictures of isometric scattering points of single plastic fiber. (a) Morphology of scattered points; (b) effect of scattering light at scattering point; (c) light intensity distribution curve

Fig. 12. Photograph of POF array backlight plate with isometric scattering point fabricated in experiment

Fig. 13. System for measuring luminance uniformity on side of backlight plate of POF array with isometric scattering points. (a) Picture of detection device; (b) detection device of luminance meter; (c) nine-point sampling position map