CN201277506Y

CN201277506Y - Angle-adjustable LED reflectoscope

Info

Publication number: CN201277506Y
Application number: CNU2008202013307U
Authority: CN
Inventors: 黄勇斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-07-22
Anticipated expiration: 2018-09-28

Abstract

The utility model discloses an LED spot lamp whose angle can be adjusted, LED light-emitting angle can be continuously adjusted and the illumination is uniform, the LED spot lamp whose angle can be adjusted comprises a bottom board (1), a plurality of angle adjusting boards (2), a driving screw bolt (5) and a driving nut (6), wherein one or more LEDs which are sleeved with lenses are arranged on each of the angle adjusting boards (2), a support stand (4) is fixed on the bottom board (4), the driving screw bolt (5) locks the edge portions of the angle adjusting boards (2), and takes the support stand (4) as the supporting point to rotate, which enables the inclination angle of the angle adjusting boards (2) to be changed, thereby the light-emitting angle of the LED is continuously adjusted. The LED spot lamp is applied to the fields, such as film shooting illumination, advertisement illumination and the like, and the market foreground is wide.

Description

LED projection lamp with adjustable angle

Technical field

The utility model relates to movies-making illumination, advertising lighting and special lighting field, relates in particular to the continuously adjustable LED shot-light of a kind of irradiating angle.

Background technology

In lighting technical field,, thereby progressively be widely used because the shot-light of making light source with LED has luminous efficiency height, energy-conservation, advantage such as the life-span is long.Throw light at movies-making, fields such as advertising lighting, often need photographed scene to be carried out lighting with shot-light, requirement to light angle generally is that (60 degree illumination angles can be given the wide-angle lens light filling about 20～60 degree angles, 45 degree can be given 35mm standard lens light filling, middle zoom lens light filling etc. can be given in 30 degree angles), currently used technology major part is that plurality of LEDs lamp pearl is combined into shot-light, the low-power LED of plant produced can directly be made the lamp pearl less than an angle of 90 degrees (generally being 20～60 degree as required), but the angle of LED all is fixing unmodifiable, and the rising angle of great power LED generally is more than 120 degree, be difficult to be lower than 80 degree, low-angle will be realized through installing lens additional, rising angle also is fixing dead behind the installation lens, so, need the different lens of the just necessary replacing of different angles, very inconvenient in the operation, or even impossible, and lens also have light loss consumption, so just are difficult to reach the requirement of movies-making.

The utility model content

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of LED rising angle adjustable continuously, the uniform LED projection lamp with adjustable angle light fixture of illumination.

The technical scheme that the utility model adopted is: the utility model comprises base plate and polylith angle adjustment plate, on described angle adjustment plate, be provided with the corresponding mounting hole according to kind and quantity that LED is installed, the LED (low-power LED then is that the circuit board that will be welded with LED is installed on the angle adjustment plate) that is with lens directly is installed on the described installing hole, be set with bearing on the described base plate, described angle adjustment plate is rotatably connected on the described bearing, described in addition LED projection lamp with adjustable angle also comprises drive screw and drive nut, described drive nut is fixedly connected on the base plate, described drive screw passes base plate and cooperates with drive nut, and described drive screw bottom is fixed with knob, the upper end is provided with pressing plate, and described drive screw affects the edge of angle adjustment plate that the angle of inclination of described angle adjustment plate is changed.

There is a limited block to be socketed on the drive screw on the top of described drive nut, and the edge of angle adjustment plate is between described limited block and the pressing plate.

Described drive screw adopts two helicitic textures.

The edge of described angle adjustment plate is provided with groove, and described groove and described pressing plate match.

The beneficial effects of the utility model are: described angle adjustment plate is rotatably connected on the bearing of base plate, and as fulcrum, under the curbing function of described drive screw, change the gradient of angle adjustment plate, regulate with direction of illumination one group of LED lamp pearl of installing on this plate, and be to adopt the two-flight screw structure, can be adjustable continuously fast in the angular range that configures, obtain different irradiating angles, to realize regulating size, shape and the illuminance of shadow surface.Be with a limited block on the described drive screw in addition, control adjustable maximum angle and prevent the scratch angle adjustment plate; The edge of described angle adjustment plate is provided with groove, and described groove and described pressing plate match, and it is attractive in appearance that integral body seems.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a structural representation under another state of the utility model;

Fig. 3 is the structure explosive view of the utility model embodiment;

Fig. 4 is the structural representation of angle adjustment plate described in the utility model.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises base plate 1, four angle adjustment plates 2, drive screw 5 and drive nut 6, described base plate 1, angle adjustment plate 2 is made by aluminium sheet, help the heat radiation of LED and alleviate lamp body weight, described angle adjustment plate 2 is provided with one or more installing hole 3, the LED that is with lens is installed on the described installing hole 3, and (LED omits among the figure, if during low-power LED, then be that the low-power LED circuit base plate directly is contained on the angle adjustment plate 2), be set with bearing 4 on the described base plate 1, described angle adjustment plate 2 bottom centre positions fixedly are equipped with upper bearing (metal) 12, be rotationally connected by bearing pin 11 between described upper bearing (metal) 12 and the described bearing 4, above-mentioned jockey is made by aluminium, helps the heat radiation of LED and alleviates lamp body weight.

Described drive nut 6 is fixedly connected on the base plate 1, described drive screw 5 passes base plate 1 and cooperates with drive nut 6, and described drive screw 5 bottoms are fixed with knob 7, the upper end is provided with pressing plate 8, the edge of described angle adjustment plate 2 is provided with groove 10, described groove 10 matches with described pressing plate 8, and drive nut 6 tops are provided with a limited block 9, are used for controlling to adjust the scope of angle.

It is that fulcrum changes the angle of inclination of described angle adjustment plate 2 with described bearing 4 that described drive screw 5 affects the edge of angle adjustment plate 2, and described drive screw 5 adopts two helicitic textures, can change the angle of inclination of angle adjustment plate 2 fast, reach the continuously adjustable purpose of LED rising angle.

Angle adjustment plate 2 recited above also can be extended to polylith, can make the hot spot that shines out produce shapes such as circle, rectangle during polylith, and any equivalent deformation of making according to content in the specification is all in protection domain of the present utility model.

Claims

1, LED projection lamp with adjustable angle, comprise base plate (1) and polylith angle adjustment plate (2), the kind and the quantity that go up according to installation LED at described angle adjustment plate (2) are provided with the corresponding mounting hole (3), described installing hole (3) upward fixedly mounts the circuit board that LED or fixed installation are welded with LED, be set with bearing (4) on the described base plate (1), described angle adjustment plate (2) is rotatably connected on the described bearing (4), it is characterized in that: described LED projection lamp with adjustable angle also comprises drive screw (5) and drive nut (6), described drive nut (6) is fixedly connected on the base plate (1), described drive screw (5) passes base plate (1) and cooperates with drive nut (6), and described drive screw (5) bottom is fixed with knob (7), the upper end is provided with pressing plate (8), and described drive screw (5) affects the edge of angle adjustment plate (2) that the angle of inclination of described angle adjustment plate (2) is changed according to predetermined axial line.

2, LED projection lamp with adjustable angle according to claim 1 is characterized in that: have a limited block (9) to be socketed on the drive screw (5) on the top of described drive nut (6).

3, LED projection lamp with adjustable angle according to claim 1 and 2 is characterized in that: described drive screw (5) adopts two helicitic textures.

4, LED projection lamp with adjustable angle according to claim 1 and 2 is characterized in that: the edge of described angle adjustment plate (2) is provided with groove (10), and described groove (10) matches with described pressing plate (8).