Physical optics experimental equipment package parallel laser three wire semiconductor laser light source magnetic suction lens convex lens concave lens imaging teacher demonstration three wire light source teaching

A: Magnetic suction optical lens set

B: Three wire semiconductor

C: Three wire semiconductor + 7-piece set

D:Magnetic suction optical ten piece set

1 Including 10 triangular prisms+1 three-wire light source

2 Including 9 triangular prisms+1 three-wire light source

3 contains 1 three-line light source

4 Including 1 three-line light source+3 triangular prisms