| 摘要 |
PROBLEM TO BE SOLVED: To make each light emitting element emit light with maximum rated output and to nearly uniformalize the color developing density of three colors of a photosensitive material. SOLUTION: The maximum rated power of the light-emitting center wavelength of the respective light emitting elements 62, 63, and 64 are 2.4mW, 0.04mW and 1.2mW, respectively, and output ratio is R:G:B=60:1:30. On the other hand, the spectral sensitivity ratio of the photosensitive material frequently used is R:G:B=1:30:2. The exposure ratio on the photosensitive material obtained by synthesizing those ratios is R:G:B=2:1:2. Consequently, light emitting element quantity ratio for uniformalizing the exposure is R:G:B=1:2:1. The quantity of each light emitting element is decided to be minimum based on the quantity ratio (R, one light emitting element 62; G, two light emitting elements 63; B, one light emitting element 64). The optimum arrangement order is the repeating of R-G-B-G, R-G-G-B, etc. |
