其次，该光源的峰值亮度出现在开机一分钟以后。

Second, the peak brightness of this light engine occurs in the first minute after power on.

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在相反的延伸方向上，沿着对称轴的亮度峰值的衰减是不同的。

The decline of brightness from its central peak along this axis of symmetry is different in the opposite directions.

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自动亮度控制硬件系统作为设计的另一个环节，利用FPGA完成了峰值测光与区域测光的设计。

The automatic brightness control system is another design. The design includes the average and peak area exposure measurement using FPGA.

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