FIELD: electricity.
SUBSTANCE: invention relates to lighting engineering and is intended for use in street traffic light bulbs. Lamp comprises main light guide (2) and multiple light sources (1). Main light guide includes input side (3) of a light guide, which is made and adapted to receive light from light sources and to pass it into the main light guide, rear side (6b) and front side (6a). Rear side (6b) is equipped with saw-tooth structure (5), which contains first and second surfaces. First surface is provided with reflecting surface (10) for reflecting light from the light source. Front side (6a) is made and adapted for internal reflection of light received from light source on rear side of main light guide, and for transmission of light received from reflecting surface. Second surface is provided with a light-absorbing surface and is substantially perpendicular to the rear side.
EFFECT: technical result is an increase in the contrast of the lamp.
16 cl, 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LIGHT SIGNAL SECTION | 2006 |
|
RU2328774C2 |
| TRAFFIC LIGHT SECTION | 2003 |
|
RU2250507C1 |
| MODULE OF LIGHT SOURCE CIRCUIT, ILLUMINATOR AND DISPLAY | 2012 |
|
RU2596221C2 |
| COLOUR MIXING COLLECTING OPTICAL SYSTEM | 2011 |
|
RU2592720C2 |
| OPTICAL ELEMENT, LIGHTING SYSTEM AND LUMINAIRE TO PROVIDE ZENITH LAMP APPEARANCE | 2012 |
|
RU2612393C2 |
| DEVICE FOR DIAGNOSIS USING BIOCHIPS | 2007 |
|
RU2371721C2 |
| LIGHT-EMITTING DIODE TRAFFIC LIGHT (PEDESTRIAN, TRANSPORT) | 2015 |
|
RU2606259C1 |
| HIDDEN PHOTOLUMINESCENT USER INTERFACE OF VEHICLE | 2015 |
|
RU2679975C2 |
| SEARCHLIGHT | 2004 |
|
RU2302585C2 |
| BACKLIGHT DEVICE | 2013 |
|
RU2624598C2 |
