Scope with improved magnification system
Secondary image formation type view finder
Self-aligning telescope
Self-housing binocular
Semi-active focus and thermal compensation of a...
Sight comprising IR camera and having a large observation area
Sight scope
Sight scope
Sighting apparatus for aiming an optical device
Sighting device for inclined telescope
Sighting telescope
Simultaneous individual focus binoculars
Sliding binocular body
Sliding binocular body
Snorkel device for a submarine
Solar telescope with integrated alignment mechanism
Spectroscopy of exoplanets from a ground-based telescope
Spherical binocular
Spherical viewing/projection apparatus
Spyhole viewer