| 摘要 |
A device for driving a light emitting element, including a DC power source for generating a DC current, a signal driving unit for controlling, in an on-off manner, the DC current generated in the DC power source on the basis of signal data with timing in accordance with the signal data, a light emitting element which is driven by the DC current controlled in the on-off manner by the signal driving unit and emits light when the DC current flows thereto, a high-speed pulse controlling unit for controlling, in an on-off manner, the DC current which drives the light emitting element at a sufficiently short period in comparison with the signal data to pulse the DC current, and a driving control unit for controlling the timing of on-off control of the high-speed pulse controlling unit in accordance with a required mean optical output.
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