CN210373124U - Down lamp - Google Patents

Abstract

The utility model discloses a down lamp, including a cylindric lamp stand, the lower extreme of lamp stand is provided with an anti-dazzle cover, the outer wall of lamp stand is the total reflection prism face, the lamp stand inner chamber is provided with a fresnel lens, fresnel lens insection face upwards, with the plane at the top place of lamp stand is parallel to each other, the lamp stand inner chamber is located fresnel lens's top is provided with the light source, relates to lamps and lanterns technical field. This down lamp uses fresnel lens to replace the convex lens who uses in the current down lamp, the part of rectilinear propagation has been removed in convex lens relatively, only remain the curved surface that takes place the refraction, adjust light into parallel light or spotlight, can play the optical effect the same with convex lens, the corner that can avoid using convex lens to produce again is dark, fuzzy phenomenon, fresnel lens thickness is thinner simultaneously, a large amount of materials have been saved in comparison in thicker convex lens, the cost of lens has been reduced, and then the manufacturing cost of down lamp has been reduced.

Description

Down lamp

Technical Field

The utility model relates to the technical field of lamps and lanterns, in particular to down lamp.

Background

The down lamp is a lighting lamp embedded in a ceiling and emitting light downward. The concealed lamp embedded in the ceiling projects all light downwards, and belongs to direct light distribution. Different reflectors, shutters, bulbs can be used to achieve different lighting effects. The down lamp does not occupy space, soft atmosphere of the space can be increased, and if people want to create a warm feeling, a plurality of down lamps can be installed in a trial mode, so that space oppression is relieved. Generally, the coffee machine is used in hotels, families and coffee houses more.

The lens that generally uses in the down lamp that has now can refract light for light gathers together more, avoids down lamp light to disperse, improves and throws the effect. However, the convex lens has some disadvantages in the actual use process, because the refraction of light only occurs at the interface of the medium, the convex lens is thick, the light is attenuated by the part of the light which is transmitted in the glass in a straight line, the phenomena of darkening and blurring of corners can occur, and the convex lens is thick, and the production cost is high.

Therefore, how to replace the existing convex lens with the novel lens also plays a role in gathering and projecting light without light attenuation and blurring, and meanwhile, reducing the cost of the lens is a technical problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a down lamp aims at using novel lens to replace current convex lens, plays the effect of gathering together the projection to the light equally, and can not make light decay, fuzzy, reduces the cost of lens simultaneously.

The utility model provides a down lamp, lamp stand including a cylindric, the lower extreme of lamp stand is provided with an anti-dazzle cover, the outer wall of lamp stand is the total reflection prism face, the lamp stand inner chamber is provided with a fresnel lens, fresnel lens insection face upwards, with the plane at the top place of lamp stand is parallel to each other, the lamp stand inner chamber is located fresnel lens's top is provided with the light source.

Preferably, the lower surface of the fresnel lens is provided with a fermat spiral bead.

Preferably, a bracket is arranged at the upper end of the inner cavity of the lamp holder, and the light source is arranged on the bracket.

Preferably, a wire slot for a power line to pass through is arranged on the upper end surface of the lamp holder.

Preferably, the outer wall surface of the antiglare shield is provided with a screw hole column for installation and fixation.

The utility model discloses use fresnel lens to replace the convex lens who uses in the current down lamp, removed the part of rectilinear propagation compared with convex lens, only remain the curved surface that takes place the refraction, adjust the light into parallel light or spotlight, can play the optical effect the same with convex lens, can avoid using the corner darkening, the fuzzy phenomenon that convex lens produced again, fresnel lens thickness is thinner simultaneously, has saved a large amount of materials compared with thicker convex lens, has reduced the cost of lens, and then has reduced the manufacturing cost of down lamp; the outer wall surface of the lamp holder is made into a total reflection prism surface, so that a vacuum electroplated layer on the surface of a traditional down lamp can be replaced, the same visual effect can be achieved, the thickness of the material is reduced, and the cost of the material is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the lamp socket of the present invention;

fig. 4 is a schematic structural diagram of the lamp socket of the present invention.

In the figure: 1. the lamp holder, 2, the antiglare shield, 3, the Fresnel lens, 4, the support, 5, the light source, 6, the screw hole column, 7, the wire casing, 8, the draw-in groove, 9, the Fermat spiral pearl point, 10, the fixture block.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, an embodiment of the present invention is provided, which comprises a cylindrical lamp holder 1, wherein the lower end of the lamp holder 1 is provided with an anti-glare shield 2, and the surface of the anti-glare shield 2 may or may not be electroplated. The lamp holder 1 and the anti-dazzle cover 2 can be clamped, a clamping block 10 is arranged on the outer wall surface of the bottom end of the lamp holder 1, a clamping groove 8 matched with the clamping block 10 is formed in the upper end of the anti-dazzle cover 2, and the clamping block 10 is clamped into the clamping groove 8 to clamp and fix the anti-dazzle cover 2 and the lamp holder 1.

The outer wall surface of the lamp holder 1 is a total reflection prism surface, can replace a vacuum electroplated layer on the surface of a traditional down lamp, can achieve the same visual effect, reduces the thickness of materials, and reduces the cost of materials and processing.

The inner cavity of the lamp holder 1 is provided with a Fresnel lens 3, the insection surface of the Fresnel lens 3 faces upwards and is parallel to the plane where the top end of the lamp holder 1 is located, and a light source 5 is arranged above the Fresnel lens 3 in the inner cavity of the lamp holder 1. The upper end of the inner cavity of the lamp holder 1 is provided with a bracket 4, the light source 5 is arranged on the bracket 4, and the light source 5 is an LED light source. When the light is emitted, the light emitted by the light source 5 is projected onto the Fresnel lens 3, and is adjusted into parallel light beams or converged light velocity after being refracted by the Fresnel lens 3, and the light is projected out through the opening of the anti-dazzle cover 2.

The Fresnel lens 3 is also named as a screw lens, is mostly a sheet formed by injecting and pressing polyolefin materials and is also made of glass, one surface of the lens is inscribed with concentric circles from small to large, and the texture of the Fresnel lens is designed according to the requirements of light interference and interference, relative sensitivity and receiving angle.

Fresnel lens 3 has removed the part that the straight line propagates compared with convex lens, only keep the curved surface that takes place the refraction, adjust the light into parallel light or spotlight, can play the same optical effect with convex lens, can avoid using the corner that convex lens produced to darken, fuzzy phenomenon again, Fresnel lens thickness is thinner simultaneously, compared with thicker convex lens save a large amount of materials, the cost of lens has been reduced, and then has reduced the manufacturing cost of down lamp

The lower surface of the fresnel lens 3 is provided with fermat spiral beads 9. The Fermat spiral beads 9 are novel beads which are generated by programming according to the shape of a free-form surface and are combined with optics and appearance, and the lighting effect can be improved.

The upper end face of the lamp holder 1 is provided with a wire slot 7 for a power line to pass through, so that the power line is conveniently connected with the light source 5 to supply power to the light source. The outer wall surface of the antiglare shield 2 is provided with a threaded post 6 for mounting and fixing, and the down lamp can be mounted and fixed by using screws and the like.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (5)

1. The utility model provides a down lamp, includes a cylindric lamp stand (1), its characterized in that, the lower extreme of lamp stand (1) is provided with an anti-dazzle cover (2), the outer wall of lamp stand (1) is the total reflection prism face, lamp stand (1) inner chamber is provided with a fresnel lens (3), fresnel lens (3) insection face upwards, with the plane at the top place of lamp stand (1) is parallel to each other, lamp stand (1) inner chamber is located the top of fresnel lens (3) is provided with light source (5).

2. A downlight according to claim 1, characterized in that the lower surface of the fresnel lens (3) is provided with fermat spiral beads (9).

3. A downlight according to claim 1, characterized in that a bracket (4) is provided at the upper end of the inner cavity of the base (1), the light source (5) being provided on the bracket (4).

4. A down lamp as claimed in claim 1, wherein a slot (7) for passing a power line is arranged on the upper end surface of the lamp holder (1).

5. A down lamp as claimed in claim 1, wherein the antiglare shield (2) has a screw hole column (6) on its outer wall surface for mounting and fixing.

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