Technical Glossary — Optics
Technical Glossary — Optics
All technical terms related to binoculars, telescopes, and outdoor glasses, listed alphabetically.
- Panoramic Design / Peripheral Vision
- Expanded field of view on sports glasses for better environmental awareness.
- Magnification (e.g., 10x, 30x, 100x)
- Magnification factor of a pair of binoculars or a telescope. Ex: 10x42 = 10x magnification with a 42mm objective lens.
- HD (High Definition) Lens
- Precision optics offering a clear and contrasted image, even in low light conditions.
- Nano-lenses / Nano-technology
- Lenses using nanometer-scale treatments to improve clarity, reduce glare, and enhance scratch resistance.
- Objective (mm)
- Diameter of the front lens. The larger it is, the more light is captured (better vision in low light).
- Reinforced Polycarbonate (PC)
- Technical plastic highly resistant to impact and transparent. Used for sports glasses lenses.
- BAK4 Prism
- High-density optical glass used in high-end binoculars. Offers a brighter and more contrasted image than BK7.
- UV400 Protection
- Filters 100% of UV rays up to 400 nm. Essential for sports glasses at altitude or in sunny environments.
- Adjustable Nose Pad
- Adjustment of the nose rest to adapt glasses to different morphologies or for corrective lens wearers.
- Anti-reflective Coating
- Layer applied to lenses to reduce glare and improve visual clarity.
- PC (Polycarbonate) Lenses
- High impact resistance plastic lenses. Lightweight and unbreakable, ideal for outdoor sports.
- High Definition Polarized Lenses
- Technology filtering horizontal reflections (water, road, snow) for increased visual clarity and reduced eye fatigue.
- Variable Zoom (e.g., 10-30x25)
- Adjustable magnification range. Offers more flexibility than fixed magnification for wildlife observation or astronomy.