Field-glasses; Protractors; Telescopes; Distance measuring apparatus; Electronic detectors for observing and measuring the infrared spectrum, namely, infrared detectors; Electronic pens; Lenses for telescopes; Nose guards which can be worn by attachment to eyewear such as sunglasses and ski goggles; Riding helmets; Scientific measuring instruments, namely, conductivity meters; Security lights for outdoor use; Swim goggles; Vehicle safety equipment, namely, back-up sensors and cameras