PAR lamp

Abstract

The invention discloses a PAR lamp which comprises a lamp holder, a lamp body, a reflector, a plurality of LED grains, an annular aluminum base plate and a transparent cover, wherein the lamp body has a first opening of horn shape and a second opening of tubular shape on a position opposite to the first opening; the transparent cover is fixedly arranged on the lamp body and covers the first opening; the lamp holder is fixedly arranged on the lamp body and covers the second opening; the aluminum base plate is concentrically arranged in the first opening; the LED grains are circumferentially uniform distributed on one surface of the aluminum base plate back to the first opening; the reflector is arranged on one side of the aluminum base plate back to the first opening; a reflecting surface of the reflector is faced to the LED grains and is used for reflecting the light emitted by the LED grains to the transparent cover; and the lamp holder is electrically connected with the LED grains. The technical scheme has the following advantages or beneficial effects: 1) a plurality of low-power (below 1W) LED grains are adopted so that the cost of the whole lamp is reduced and 2) all the lights emitted by the light source are constrained and controlled by the reflector so that the glare caused by direct emit light can be avoided.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a PAR (Parabolic Aluminum Reflector, dish-shaped aluminum reflector) lamp. Background technique [0002] At present, the light source of an LED (light emitting diode, light emitting diode) lamp generally adopts a Lambertian light source with an emission angle of about 120 degrees, but in order to meet actual lighting requirements, secondary optical devices are often required. The current secondary optical devices are optical lenses and reflectors. The LED light source is placed at the bottom center of the secondary optical device. The Lambertian light source achieves a certain angle through the refraction and reflection of the lens, or through the partial reflection constraints of the reflector. Require. However, both of these two methods can directly see the LED light source, and the latter can only restrict the light from the side and cannot control the light directly in fron...

AI Technical Summary

Problems solved by technology

However, both of these two methods can directly see the LED light source, and the latter can only restrict the light from the side and cannot control the light directly in front, which will cause the light directly in front to emit directly, causing glare and visual fatigue Uncomfortable and affects the central light intensity value

Images