1. not having or not using a lens or lenses
Usage: often used in technical contexts

Examples

• The lensless camera uses a computational imaging technique.
• Scientists developed a lensless microscope for portable diagnostics.
• The lensless design makes the device much lighter and more compact.
• Researchers are exploring lensless photography methods.
• The lensless optical system relies on digital processing.
• This lensless approach eliminates chromatic aberration problems.