31. The depicted mechanical device, a periscope in this case, forces the vision into a monocular format. 32. The depicted mechanical device, a peephole in this case, forces the vision into a monocular format. 33. The monocular is mounted on a tripod and the trunk of the tree is sighted through the monocular. 34. The monocular is mounted on a tripod and the trunk of the tree is sighted through the monocular . 35. The monocular is mounted on a tripod and the trunk of the tree is sighted through the lens. 36. Hi-Speed 240Hz monocular / 350Hz binocular video based corneal reflex eye tracker, released in 2003. 37. However, the image in such a microscope is no different from that obtained with a single monocular eyepiece. 38. While it does not specifically mention applicability to monocular 3D, several of the technologies would seem to apply. 39. Other types include monocular night vision devices with only one eyepiece which may be mounted to firearms as night sights. 40. The gentry of England and France used a " perspective glass or monocular which could be concealed from view easily.
