<div style='text-align: center'>Length (X): 45 cm</div>

Water: 20 cm

<div style='text-align: center'>Light Region</div>

<div style='text-align: center'>Dark Region</div>

<div style='text-align: center'>(Covered with a black chart paper and cloth)</div>

30 cm

22.5 cm

Light Region

Dark Region(Covered with a black chart paper and cloth)

Height (Z): 30 cm

Length (X): 45 cm

Breadth (Y): 22.5 cm

Water: 20 cm

LD diagram