CN203273438U

CN203273438U - LED lamp bulb with adjustable light spot

Info

Publication number: CN203273438U
Application number: CN 201320311393
Authority: CN
Inventors: 吴育林; 李海锋; 梁明
Original assignee: Guangdong Cosio Lighting Co Ltd
Current assignee: Guangdong Cosio Lighting Co Ltd
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2013-11-06
Anticipated expiration: 2023-05-28

Abstract

An LED lamp bulb with an adjustable light spot comprises a lamp holder and a lamp bulb body connected with the lamp holder. An LED light-emitting component, a focusing lens and a focusing mechanism are arranged inside the lamp bulb body. The focusing mechanism is composed of a fixed sleeve and a movable sleeve, the fixed sleeve and the lamp bulb body are fixedly connected, and the movable sleeve and the fixed sleeve are connected in a sliding mode. The focusing lens is mounted on the movable sleeve. The end of any one of the fixed sleeve and the movable sleeve is chosen to be provided with end teeth, the end teeth are provided with protruding blocks which are provided with radial protrusions and are tightly compressed on the sleeve wall of the other sleeve, and the protruding blocks have a damping effect on sliding of the movable sleeve relative to the fixed sleeve. According to the LED lamp bulb with the adjustable light spot, the size of the light spot irradiated by the lamp bulb can be adjusted by the way of stretching the movable sleeve, using is convenient, in addition, the focusing mechanism is simple, the damping effect between the movable sleeve and the fixed sleeve can be achieved without elastic sealing elements like a rubber ring, the movable sleeve can be stretched to any position at will, and stepless zooming is achieved.

Description

The LED bulb that hot spot is adjustable

Technical field

The utility model relates to the LED bulb, particularly adopts the LED bulb of optically focused light distribution structure.

Background technology

In the LED bulb of existing employing optically focused light distribution structure, bulb irradiation is nonadjustable to the hot spot on object, gives and uses band to serve inconvenience.

The utility model content

The purpose of this utility model is to provide the adjustable LED bulb of a kind of hot spot.

the utility model is achieved in that the LED bulb that hot spot is adjustable, the bulb main body that comprises lamp holder and be connected with lamp holder, be provided with the LED light-emitting component in the bulb main body, described bulb main body is provided with focus adjusting mechanism, focus adjusting mechanism is made of fixed muffle and quill, fixed muffle is fixedly connected with the bulb main body, quill and fixed muffle are slidably connected, quill is equipped with condenser lens, the light line focus lens that the LED light-emitting component sends penetrate, by the slip quill, can regulate the focus of condenser lens and the distance between the LED light-emitting component, in fixed muffle and quill, both appoint the end of selecting one to be provided with end tooth, end tooth is provided with the projection on the barrel that is pressed on the opposing party's sleeve of radial protrusion, provide damping action for quill with respect to the slip of fixed muffle by this projection.

As preferred forms or further improvement, the utility model also can be taked following attached technical scheme.

Described condenser lens is Fresnel Lenses.

The position that the barrel with described the opposing party's sleeve of described projection contacts is provided with the projection of arc surfaced.

Described quill is provided with filter lens.

Mode with magnet attraction between described filter lens and quill is connected.

The utility model has the advantages that, just can regulate the spot size that bulb shines by the telescopic movable sleeve, easy to use, and focus adjusting mechanism is simple, do not need the elastic sealing elements such as rubber ring just to realize damping between quill and fixed muffle, and can make quill arbitrarily be retractable to arbitrary position, realize stepless zooming.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the A section enlarged drawing of Fig. 1;

Fig. 3 is the stereogram of the quill in Fig. 1;

Fig. 4 is the schematic diagram that the quill in Fig. 1 extend out to distal-most end;

The structural representation of the utility model embodiment two of Fig. 5;

Fig. 6 is the B section enlarged drawing of Fig. 5;

Fig. 7 is the schematic diagram that the quill in Fig. 5 extend out to distal-most end.

The specific embodiment

Embodiment one

Referring to Fig. 1 and in conjunction with Fig. 2 to Fig. 4, the LED bulb that hot spot is adjustable comprises lamp holder 1 and the bulb main body 2 that is connected with lamp holder 1.Be provided with LED light-emitting component 3 in bulb main body 2.Bulb main body 2 can be used as the radiator of LED light-emitting component 3.Lamp holder 1 is the same with conventional light bulb, can be the standard lamp head of the various models such as GU10, GX5.3, E14, E27, and shown in Figure 1 is GU10 type lamp holder.The profile of bulb main body 2 is not limited by accompanying drawing, for example can be made into the cup shape.Bulb main body 2 is the bulb of cup shape, and is in the field of business also referred to as " Lamp cup ".LED light-emitting component 3 can adopt light emitting diode or light-emitting diode chip for backlight unit.

Bulb main body 2 is provided with focus adjusting mechanism.This focus adjusting mechanism is made of fixed muffle 5 and quill 6.Fixed muffle 5 is fixedly connected with bulb main body 2, and quill 6 is inserted in fixed muffle 5 and can endwisely slips.Quill 6 is equipped with condenser lens 4, and the light line focus lens 4 that LED light-emitting component 3 sends penetrate.Condenser lens 4 can adopt common spherical convex lens, but as preferred forms, the condenser lens 4 of the present embodiment adopts Fresnel Lenses lightweight, thin thickness, can reach better to go out light effect.By slip quill 6, can regulate the focus of condenser lens 4 and the distance between LED light-emitting component 3.The end of quill 6 is provided with end tooth 7, and end tooth 7 is provided with the projection 8 on the inwall that is pressed on fixed muffle 5, provides damping action for quill 6 with respect to the slip of fixed muffle 5 by this projection 8.Pull quill 6 and can regulate the focus of condenser lens 4 and the distance between LED light-emitting component 3, thereby regulate the spot size that bulb shines.

The present embodiment is provided with the projection 9 of arc surfaced at the position that the inwall with fixed muffle 5 of projection 8 contacts, so can guarantee has enough frictional force between the inwall of projection 8 and fixed muffle 5, make quill 6 can arbitrarily rest on arbitrary position in fixed muffle 5, quill 6 can be slided more neatly, for the user provides comfortable feel.But quill 6, end tooth 7, projection 8, projection 9 global formations.

As further improvement, the quill 6 of the present embodiment is provided with filter lens 10.The emitted light spot shape of line focus lens 4 can be changed by filter lens 10, for example, circle, the various shapes such as square, oval can be presented.Present different light spot shapes, replaceable different filter lens 10.For ease of changing filter lens 10, the mode with magnet attraction between filter lens 10 and quill 6 is connected.

Embodiment two

Referring to Fig. 5 and in conjunction with Fig. 6, Fig. 7, the main difference part of the present embodiment and embodiment one is, fixed muffle 5 in focus adjusting mechanism is inserted in quill 6, the end of fixed muffle 5 is provided with end tooth 11, end tooth 11 is provided with the projection 12 on the inwall that is pressed on quill 6, provides damping action for quill 6 with respect to the slip of fixed muffle 5 by this projection 12.Be provided with the projection 13 of arc surfaced at the position that contacts with wall within quill 6 of projection 12, the effect of the projection 9 in the effect of this projection 13 and embodiment one is identical.In fact, the corresponding construction in Fig. 3 of the structure of the end tooth 11 of the present embodiment, projection 12, projection 13 and embodiment one is identical.But fixed muffle 5, end tooth 11, projection 12, projection 13 global formations.

But other structure reference examples one of the present embodiment repeat no more.

No matter be embodiment one or embodiment two, when bulb mounting, both bulb main body 2 can be fixed on the installation site, pull quill 6 during focusing; Also quill 6 can be fixed on the installation site, pull bulb main body 2 during focusing, these two kinds of mounting means all can realize regulating the effect of hot spot.

Above embodiment and accompanying drawing are to explanation of the present utility model, do not consist of the restriction to the utility model protection domain.Any change programme that falls in the claim protection domain all belongs to protection domain of the present utility model.

Claims

1. the adjustable LED bulb of hot spot, the bulb main body that comprises lamp holder and be connected with lamp holder, be provided with the LED light-emitting component in the bulb main body, it is characterized in that: described bulb main body is provided with focus adjusting mechanism, focus adjusting mechanism is made of fixed muffle and quill, fixed muffle is fixedly connected with the bulb main body, quill and fixed muffle are slidably connected, quill is equipped with condenser lens, the light line focus lens that the LED light-emitting component sends penetrate, by the slip quill, can regulate the focus of condenser lens and the distance between the LED light-emitting component, in fixed muffle and quill, both appoint the end of selecting one to be provided with end tooth, end tooth is provided with the projection on the barrel that is pressed on the opposing party's sleeve of radial protrusion, provide damping action for quill with respect to the slip of fixed muffle by this projection.

2. the adjustable LED bulb of hot spot as claimed in claim 1, it is characterized in that: described condenser lens is Fresnel Lenses.

3. the adjustable LED bulb of hot spot as claimed in claim 1, it is characterized in that: the position that the barrel with described the opposing party's sleeve of described projection contacts is provided with the projection of arc surfaced.

4. the adjustable LED bulb of hot spot as claimed in claim 1, it is characterized in that: described quill is provided with filter lens.

5. the adjustable LED bulb of hot spot as claimed in claim 4 is characterized in that: the mode with magnet attraction between described filter lens and quill is connected.