CN106499995B

CN106499995B - LED stage lamp

Info

Publication number: CN106499995B
Application number: CN201610962330.8A
Authority: CN
Inventors: 陈巧; 麦德强
Original assignee: Jiangxi Tianjing Jingcang Technology Co ltd
Current assignee: JIANGXI TIANJING JINGCANG TECHNOLOGY Co.,Ltd.
Priority date: 2016-07-25
Filing date: 2016-11-04
Publication date: 2020-08-11
Anticipated expiration: 2036-11-04
Also published as: CN106499995A

Abstract

The invention discloses an LED stage lamp. The LED lamp comprises a base and a lamp cap, wherein the lamp cap comprises a lens and a corresponding light source, and a light outlet of the lens is provided with a light guide shielding cover with openings at two ends. The light of each lamp bead of the LED stage lamp can not generate mutual scattering interference, each light color is simple, and the phenomena of light leakage, light scattering, color cast, color disorder and the like can be avoided.

Description

LED stage lamp

Technical Field

The invention relates to a stage lamp, in particular to an LED stage lamp.

Background

As an energy-saving light source which is green and pollution-free and has a long service life, the LED light source has gradually become a preferred device for development and application in the field of lighting. The LED light source can emit various monochromatic lights, and mixed light with any color can be obtained by adjusting the LED current for emitting red light, green light and blue light by utilizing the RGB tricolor light principle, so that the LED light source is also a common choice for the stage light. However, in the prior art, when the LED light source is used as a stage light source, since the emission spectra, the brightness and the temperature characteristics of the LED chips of different colors are different, when the light emitted by the LED chips of different colors is projected onto a stage or a screen through an optical system, the color uniformity in the illumination light field is poor. Particularly, due to the fact that the structural composition of the existing LED light source lamp optical system and the like is unreasonable, the problems of scattering of each composition light unit and light leakage caused by various disturbances inevitably exist in each lamp bead of one stage lamp due to any lens, namely, the problem that light reflected and/or refracted by each unit lamp bead or each stage lamp light can not be irradiated according to a set or required ideal path completely exists, and the problem that color deviation, color mixing and even color disorder and the like are caused by mixing of color light lines or light rays of each lamp inevitably exists. In this regard, the prior art attempts to improve and overcome such problems by making various improvements to the focusing lens and the like, and improving the focusing and illuminating effects thereof, but the effect thereof is very small; especially, the design technical field of the stage lamp is always troubled by the undesirable mixed color and color cast caused by the mutual scattering and interference of the light rays of all luminous bodies (monomer lamp beads) of the stage lamp. Therefore, how to improve the color uniformity, light leakage, polarization, color cast, scattering and color mixing of the image formed by the LED stage lamp is one of the main research directions of those skilled in the art.

Disclosure of Invention

The invention aims to provide an LED stage lamp aiming at the defects in the prior art. The light of each lamp bead of the LED stage lamp can not generate mutual scattering interference, each light color is simple, and the phenomena of light leakage, light scattering, color cast, color disorder and the like can be avoided.

The LED stage lamp comprises a base and a lamp holder, wherein the lamp holder comprises a lens and a corresponding light source, and a light outlet of the lens is provided with a light guide shielding cover with openings at two ends.

The cover body of the light guide shielding cover is barrel-shaped, pot-shaped or bowl-shaped.

The inner side wall surface around the cover body of the light guide shielding cover is a curved wall surface or a straight wall surface along the axial direction.

The curved wall of the light guide shielding case comprises an arc-shaped wall.

The diameter of the light outlet of the light guide shielding cover is smaller than that of the light inlet.

And an annular folded edge is arranged at a light inlet of the light guide shielding cover.

One end of the light inlet of the light guide shielding cover is connected with the corresponding lens.

The lens includes a condenser lens.

Also included are reflectors and their corresponding rotary drive mechanisms.

The base is equipped with safe suspension system, safe suspension system is including locating respectively the lock joint cable suspension device and the system hoisting device of base bottom, the lock joint cable suspension device is including connecting a plurality of arc location cardboard on the base.

According to the LED stage lamp, the light guide shielding cover and the corresponding lens are matched with each other, so that the reflection and/or refraction light scattering of the condensing lens can be effectively isolated, and the structure ensures that light rays emitted by the LED lamp beads cannot be subjected to undesired mixing, superposition and interference with other or adjacent lamp bead light rays through the condensing lens and the like, and the phenomena of color disorder and undesired color mixing are avoided; the LED stage lamp has the advantages of accurate color chromaticity, no color cast, high purity and uniform light spots of the light, so that the LED stage lamp forms undistorted light spots with uniform color, and the problem of interference of mutual mixed light and color mixing of lamp beads, which is always troubled, is solved. And the structure is very simple and reasonable, easy to implement and strong in practicability.

In addition, the posture of the light guide shielding cover is adjusted by adjusting the matching angle of the light guide shielding cover and the lens, so that the angle led out when the emergent or incident light of the lens passes through the light guide shielding cover is changed, and the color uniformity and the beam angle of the illumination light field can be further optimized.

And it has more scientific, reasonable hoist device relatively, and the installation is quick, simple and convenient, has dual installation protection device, and it has improved security and reliability of using through corresponding dual cable suspension device.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of an LED stage lamp according to the present invention. Fig. 2 is a schematic view of a connection structure of a condensing lens and a light guide shield according to the present invention. Fig. 3 is an end view of a light guide shielding cover according to an embodiment of the invention. Fig. 4 is a sectional view taken along line a-a of fig. 3. Fig. 5 is a perspective view of a light guide shield of the present invention. FIG. 6 is a schematic structural view of the LED stage lamp in an upside-down hanging state. Fig. 7 is a schematic structural view of the fastening hanger in fig. 6. Fig. 8 is a schematic structural view of a rotation driving mechanism in embodiment 4 of the LED stage lamp.

Detailed description of the preferred embodiments

In order to further understand the technical solution of the present invention, the following embodiments are further illustrated with reference to the accompanying drawings.

As shown in fig. 1-7, the LED stage lamp of the present embodiment includes a base 1, a lamp holder 2 movably connected to the base 1 through a corresponding rotating mechanism, a lamp cap 3 movably connected to the lamp holder 2 through a corresponding rotating device, and the like. The lamp head comprises a light source 6 and a condenser lens 24. The base 1 is provided with a safe hanging system which comprises a quick fastening hanging device 4 and a fastening hanging device which are respectively arranged at the bottom of the base 1. The periphery of the wall of the lamp holder 3 is provided with a heat radiation window 61. The light source 6 comprises 25 CRELEmp XML four-in-one 10WLED lamp beads 27.

In this embodiment, the light exit (large-caliber end) of each condensing lens 24 is connected to a corresponding light guide shielding cover 21, an annular folded edge 23 protruding outward is disposed on the light entrance end surface of the light guide shielding cover 21, and the corresponding wall surface of the annular folded edge 23 is flush with the light entrance end surface of the light guide shielding cover 21. The light guide shield 21 can be butt-jointed with the condenser lens 24 through the annular flange 23 at one end of the light inlet 26. The annular flange 23 may be formed by bending the cover wall of the light guide shield 21 outward at a right angle.

The light guide shield 21 is approximately in the shape of a bottomless bowl, and the inner peripheral wall surface of the light guide shield 21 is an arc surface along the axial direction of the light guide shield. The light inlet 26 of the light guide shield 21 has a diameter larger than the light outlet 25 thereof. Each LED lamp bead 27 is disposed at the other end (large-diameter end) of each corresponding condenser lens 24.

Its lock joint cable suspension device (or quick lock joint cable suspension device) 4 in this embodiment is including installing two arc location cardboard 7 in base 1 side by side and corresponding two arc activity cardboard 8 that are connected with two arc location cardboard 7 respectively to and connect the hasp bolt 9 between arc location cardboard 7 and arc activity cardboard 8, and every arc location cardboard is relative corresponding with its arc portion of corresponding arc activity cardboard.

Arc location cardboard 7 is through on the installation ear 24 of two omega shapes of fixed connection side by side in the diapire of base 1, and the one end of arc activity cardboard 8 and hasp bolt 9 corresponds and is connected with the both ends of fixing a position arc cardboard 7 through corresponding round pin axle 10 respectively, is equipped with spacing bellying 8b on the corresponding other end tip wall of arc activity cardboard 8, and the one end that should be equipped with spacing bellying 8b of arc activity cardboard 8 still is equipped with open and holds notch 8 a. The other end card of hasp bolt 9 is gone into in the open notch 8a that holds of arc activity cardboard 8 to it is spacing with corresponding nut 22 to accessible spacing bellying 8b, makes arc location cardboard and arc activity cardboard interconnect, and then realizes hanging the rotatory quick installation of shaking head light beam lamp of two-way rotation on corresponding crossbeam, and its dismantlement is also very quick, convenient.

Meanwhile, a tying and hanging device is further arranged on the bottom wall of the base 1 so as to obtain dual safe installation for use. The lifting device comprises a latch ring 25 movably connected to the bottom wall of the base 1, and a safety rope 26 connected to the latch ring 25. The snap ring 25 is composed of an open stainless steel ring and a double-threaded nut screwed between both ends of the open stainless steel ring.

In embodiment 2 of the present invention, an adjusting device is disposed between the condensing lens and the light guide shield, and the adjusting device includes an elastic gasket disposed between the condensing lens 24 and the light guide shield 21. The attitude of the light guide shield with respect to the axial direction thereof can be changed by adjusting the relative thickness of one side of the elastic washer to the corresponding other side. And further the guiding isolation shielding effect of the light can be changed. The rest of the structure of this example can be similar to the above-described embodiment.

In embodiment 3 of the present invention, the light guide shield case has an approximately conical shape, and the inner peripheral wall surface of the conical shape is a straight surface. The rest of the structure of this example can be similar to the above-described embodiment.

An LED stage lamp according to example 4 of the present invention is shown in fig. 8. The light reflector further comprises a light reflector and a corresponding rotary driving mechanism thereof, wherein the rotary driving mechanism of the light reflector comprises a first gear 44, a second gear 46 and a first driving motor 47, the first gear 44 is arranged on the convex surface of the second reflecting surface 43, the second gear 46 is meshed with the first gear 44, an output shaft of the first driving motor 47 is connected with the second gear 46, an output shaft of the second driving motor 48 is connected with a screw rod, the first reflecting surface 42 is in threaded connection with the screw rod through a support 41, the first reflecting surface 42 is driven to reciprocate along the axial direction of the first reflecting surface when the second driving motor 48 is started, and the size and the brightness of light spots are changed by changing the distance between the first reflecting surface 42 and the second reflecting surface 43. When the first driving motor rotates forward or reversely, the second reflecting surface 43 is driven to swing back and forth, so that the direction of the light spot is changed, and the light spot is more colorful. The rest of the structure of this example can be similar to any of the above embodiments.

Claims

1. An LED stage lamp comprises a base and a lamp cap, wherein the lamp cap comprises a lens, a corresponding light source, a light reflector and a corresponding rotary driving mechanism, and is characterized in that a light outlet of the lens is provided with a light guide shielding cover with openings at two ends; the lens comprises a condenser lens; the light guide shielding cover is characterized in that inner side wall surfaces around the cover body of the light guide shielding cover are curved wall surfaces along the axial direction, an annular folded edge protruding outwards is arranged on the end surface of a light inlet of the light guide shielding cover, the annular folded edge is formed by bending the cover body wall of the light guide shielding cover outwards to form a right angle, a rotary driving mechanism of the reflector comprises a first gear, a second gear and a first driving motor, the first gear is arranged on a convex surface of a second reflecting surface, the second gear is meshed with the first gear, an output shaft of the first driving motor is connected with the second gear, an output shaft of the second driving motor is connected with a screw rod, the first reflecting surface is in threaded connection with the screw rod through a support, and the second driving motor drives the first reflecting surface to reciprocate along the axial direction of the first reflecting surface when being started.

2. The LED stage lamp of claim 1, wherein the light guide shield has a pot or bowl shape.

3. The LED stage lamp of claim 2, wherein the curved wall of the light-directing shield comprises a curved wall.

4. The LED stage lamp of claim 2 or 3, wherein the light guide shield has a light exit diameter smaller than a light entrance diameter.

5. The LED stage lamp of claim 1, wherein the light guide shield has a light inlet end connected to the corresponding lens.

6. The LED stage lamp as claimed in claim 1, wherein the base is provided with a safety hanging system, the safety hanging system comprises a fastening hanging device and a fastening hanging device respectively arranged at the bottom of the base, and the fastening hanging device comprises a plurality of arc-shaped positioning clamping plates connected to the base.