型號: VIS-721; VIS-722; VIS-722(N/S) 光學系統: 消色差 Czerny-Turner (1200L/mm grating) 波長范圍: 350-1020nm; 320-1020nm; 320-1020nm 波長準確度: ±2nm; ±2nm; ±2nm 光譜帶寬: 6nm; 5nm; 4nm