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Star sky projection lamp

A projection lamp and starry sky technology, applied in the field of lighting, can solve problems such as complex structure, inconvenient use, and large volume, and achieve the effect of expanding the lighting area, improving brightness, and increasing the number

Pending Publication Date: 2018-10-02
佛山市南海区协隆电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a star projection lamp to solve the problems of complex structure, large volume and inconvenient use in the prior art

Method used

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with accompanying drawing:

[0022] figure 1 It is a structural schematic diagram of the first embodiment of the star projection lamp of the present invention. Such as figure 1 As shown, in this embodiment, a light source 10 , a focusing lens 20 , a gobo 30 , a beam splitting unit 40 , a collimating lens 50 , and a mirror array 60 are sequentially included along the optical path. In this embodiment, the light source 10 is an LED light source, and the LED light source includes an LED chip 110 and a fluorescent powder 120. The LED chip 110 emits blue excitation light, and the fluorescent powder 120 is a yellow fluorescent powder, which converts part of the blue light emitted by the LED The excitation light is converted into yellow light, and finally the unconverted blue light and the yellow light emitted by the phosphor are mixed to form white light. This is a packaging structure of white light LEDs. The ...

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Abstract

The invention discloses a star sky projection lamp. The star sky projection lamp comprises a light source, a focusing lens, a pattern piece, a beam splitting unit, a collimating lens and a reflectingmirror array arranged along a light way in sequence. The beam splitting unit can split one light beam into multiple sub light beams with different propagation angles; the different sub light beams arecollimated by the collimating lens to emit to the reflecting mirror array; and meanwhile, the reflecting mirror array comprises multiple small reflecting mirrors, so that the number of projection patterns is increased under the condition of limited number of the small reflecting mirrors in the reflecting mirror array, and the illuminating area is increased. Meanwhile, an LED is used as a light source, and a semi-spherical reflecting bowl is used for improving an LED light emitting surface, so that the defect of weak LED brightness can be solved.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a star projection lamp. Background technique [0002] Star projection lamp is a decorative lighting device that projects countless stars or snowflakes on the walls, ceilings, and lawns. It is used indoors such as KTV boxes, and outdoors such as courtyards, lawns, and plants. It can create atmosphere and decorate The role of landscape has a very wide range of applications in life. [0003] At present, the star projection lamps on the market all use laser diodes as light sources, but laser diodes are almost monochromatic in red, green and blue, and cannot effectively synthesize white, so it is difficult to form white patterns. However, due to insufficient brightness of the LED light source, the pattern projected when used as a star projection lamp is dim, and the effect is very poor. In addition, the existing star projection lamp usually includes a curved reflector array, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/06F21V33/00F21V9/45F21Y115/10
CPCF21S8/00F21V9/45F21V13/06F21V33/0028F21Y2115/10
Inventor 苏运清
Owner 佛山市南海区协隆电器有限公司
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