Traffic lights
JP7844065B1Active Publication Date: 2026-04-13FENWAL CONTROLS OF JAPAN
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- FENWAL CONTROLS OF JAPAN
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-13
Smart Images
Figure 0007844065000001_ABST
Abstract
We provide traffic lights suitable for photography with cameras. [Solution] A traffic light according to one embodiment comprises an indicator light that lights up in a specific color, and a controller that controls the lighting and extinguishing of the indicator light. The indicator light has a plurality of LED groups, each containing at least one LED element. The controller drives each of the plurality of LED groups with a drive voltage that repeatedly switches between lighting and extinguishing. Furthermore, the phase of the drive voltages of each of the plurality of LED groups is shifted such that at least one other LED group remains lit when any of the LED groups switches from a lit state to an extinguished state.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
LED drive circuit and LED light emitting device
JP2008218043A
Facility management system
JP2019068239A
Signalling device, recognition device, signalling system, and program
JP2024072514A