optics

The branch of physics dealing with the nature and properties of electromagnetic energy in the light spectrum and the phenomena of vision. In the broadest sense, optics deals with infrared light, visible light, and ultraviolet light. See also electromagnetic spectrum, infrared light, physics, ultraviolet light, and visible light.

• NPA (Numbering Plan Administration)
• N-PCS (Narrowband Personal Communications Services)
• NREN (National Research and Education Network)
• nrt
• nrt-VBR (non real-time Variable Bit Rate)
• NRZ (Non-Return-to-Zero)
• NSF (National Science Foundation)
• NT1 (Network Termination 1)
• NT1 (Network Termination 1)
• NT2 (Network Termination 2)
• NT2 (Network Termination 2)
• NTACS (Narrowband Total Access Communications System)
• NTIA
• NT (Network Termination)
• NTSC (National Television Standards Committee)
• null
• null modem
• numbering plan administration (NPA)
• Numbering Plan Area (NPA)
• number portability
• Number Portability Administration Center (NPAC)
• Numbers
• numerical aperture (NA)
• NXX
• NXX