corneal lens（lenses） lens
object lens objective lens
objective lens object lens
plane-concave lens (=plano-concave lens)
plane-convex lens (=plano lens)
short focal length lens (=short-focus lens)
variable focus lens vari-focus lens
vari-focus lens variable focus lens
2nd transparent boundary conditions
acoustically transparent pressure vessel
acoustically transparent wedge
acrylic baking transparent paint
acrylic water-soluble transparent baking paint
Ag-based transparent conducting thin film
Al2O3 transparent ceramics
amino baking transparent paint
Asynchronous transparent data