Plane-frame shaped luminous source

Abstract

The invention discloses a plane-frame shaped luminous source. An entire pattern is a rectangle, two lines at the leftmost and the rightmost are round-head LEDS with outward vertical inclination anglesat 30-45 DEG; the third line at the left is flat-head LEDs in uniform distribution, the fourth line is flat-head LEDs and round-head LEDs in uniform distribution and interval arrangement, the fifth line is flat-head LEDs in uniform distribution, the sixth line is the flat-head LEDs and the round-head LEDs in in uniform distribution and interval arrangement, and the LEDs are arranged based on thisrule until the two lines of LEDs at the rightmost are the round-head LEDs; except the condition that the outward vertical inclination angles of the round-head LEDs in the lines that two lines of flat-end LEDS and the round-head LEDs are arranged in a mixed manner arranged in the center are zero, the outward vertical inclination angles of the round-head LEDS at the first line round-head LEDs at the n-th line to the outside from the center in the lines are changed as 20-25 DEG from 12-16 DEG, six flat-head LEDS surround each round-head LED, every three proximate flat-head LEDs or the round-headLEDs respectively form an equilateral triangle. The plane-frame shaped luminous source disclosed by the invention is high in brightness, large in irradiation area, free from dead angle and uniform inbrightness; under the condition of adopting the least LED, the effective illumination area is the biggest. The cost sum of all lamps on the road with above streetlamp is greatly reduced.

Description

[0001] Technical field [0002] The invention belongs to an LED light source used in a street lamp. Background technique [0003] Existing street lamps use mercury lamps, high-pressure mercury lamps or sodium lamps as light sources, and their energy comes from 220v alternating current, which not only consumes electricity, but also has a short service life, low light efficiency, and is unsafe. The light emitted by the beam-shaped round-head LED light source is point-type, and its light is uneven and the irradiation area is small. When the light coverage is the same as that of a mercury lamp, high-pressure mercury lamp or sodium lamp, etc. The number is very large and the cost is very high, so it is difficult to popularize LED as a light source for street lamps. Contents of the invention [0004] The present invention solves the above-mentioned problems in the prior art, and provides a planar frame-shaped light source that uses solar power to generate electricity, is low in c...

AI Technical Summary

Problems solved by technology

[0003] Existing street lamps use mercury lamps, high-pressure mercury lamps or sodium lamps as light sources, and their energy comes from 220v alternating current, which not only consumes electricity, but also has a short service life, low light efficiency, and is unsafe

The beam-shaped round-head LED light source emits point-type light, which has uneven light emission and a small irradiation area. When the light coverage is the same as that of a mercury lamp, high-pressure mercury lamp or sodium lamp, etc. The number is very large and the cost is very high, so it is difficult to popularize LED as a light source for street lamps.

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