提出了在三值光计算机中采用对称三进制半加器的观点,设计了支持这个观点的半加器结构原理图。与传统二进制电子计算机加法器相比,该设计体现了对称三进制表示将加法运算和减法运算合而为一的优点,避免了补码运算。论述了对称三进制加法运算的规律,介绍了所设计半加器的工作原理,为三值光计算机逻辑运算器以及后续研究提供了理论指导意义。 Proposed the use of symmetrical ternary half-adder in the three-value light computer, and designed the schematic diagram of the half-adder structure supporting this view. Compared with the traditional binary electronic computer adder, this design reflects the advantage of symmetric ternary representation of combining the addition and subtraction into one, avoiding the complement operation. The law of symmetric ternary addition is discussed. The working principle of the designed half adder is introduced. It provides the theoretical guidance for the ternary optical computer logic operator and subsequent research.