Combined eyeglasses and sun visor
Combined gemstone display stand and magnifier
Combined goggle strap and ear covers
Combined holder and magnifier for gem examination
Combined illuminated jeweler's loupe and key ring
Combined magnifier and light for surgical instrument
Combined magnifier and pen
Combined magnifier and pen holder
Combined magnifier and ruler
Combined magnifying glasses and storage container
Combined pen and eyeglasses holder
Combined service equipment receptacle and holder for spectacles
Combined studio and field television camera lens shade
Combined sunglasses and visor
Combined ultraviolet lamp and magnifying lens for authenticating
Combined visor and eye shield
Compact night vision device
Concentrator lens
Condensing lens system
Connector for endoscope