内置式显微光学系统及光栏，像质清晰。
Built-in optical system and adjustable iris diaphragm with clear image.
其特征在于分光系统由一个光栏和滤光片组成。
The spectroscope consists of diaphragm and light filter sheet.
光栏的宽度可准确标定，挡光时间由单片机测量。
The rectangle light is shield can be marked precisely, time of keeping off light is measured by single chip Microcomputer.
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