corneal lens lens

corneal lens（lenses） lens

Lens-to-lens interval

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

Pit-in-pit

1CU lens

35mm Multi Focal Points Lens Shutter Cameras

35mm Single Focal Point Lens Shutter Cameras

a pillar lens with a hole

aberrated lens system

aberration of lens

absorption lens

absorptive lens