Light system for defining line of approach
US7039506B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Apr 26, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B49/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A light system for defining a line of approach uses light sources arranged in an array. The light sources are arranged such that they define a primary field-of-view (FOV) from which all of the light sources are visible. Less than all of the light sources are visible from positions outside of the primary FOV. The light sources are further divided into sections with each section having a portion of the light sources associated therewith. The light sources are controlled in accordance with cyclical on/off sequences. A primary waveform of light energy is defined by the cyclical on/off sequence visible from within the primary FOV. A plurality of secondary waveforms of light energy are defined by the cyclical on/off sequences visible from positions outside of the primary FOV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.