Arrangement for a rotatable eyepiece cap

Arrangement for rotatable adjustment of a cap on an eyepiece...

Binocular lens tube protector

Binoculars and optical device provided with...

Drape for a surgical microscope with anti-halation window

Eye cup adjustment device for optical apparatus such as...

Eye viewing device comprising eye cup

Eyeguard with automatic diaphragm

Eyepiece cover for binoculars

Eyepiece cup for binoculars

Glasses-on binoculars with an eyeglass guard including a general

Microscope and eyepiece of the same

Night vision goggle focusing aid

Optical apparatus

Submarine periscope eyeguard housing assembly

Telescopic sight attachment to improve viewing