CN101334144A - A zoomable LED lamp - Google Patents

Abstract

The invention discloses a variable-focus LED lamp with adjustable light spot size. The invention includes a rear seat (1), an LED with a substrate (3), a lamp body, a lens (6), a limit screw (2), a lens bracket (5), an adjustment ring (8), and the lamp body includes a front lamp body (7), the rear lamp body (4), the LED (3) with the substrate is fixed on the rear seat (1), and the head and tail of the rear lamp body (4) are respectively connected to the tail and rear of the front lamp body (7). The seat (1) is fixedly connected, the lens (6) is fixed on the lens bracket (5), the adjusting ring (8) is fixed in the axial direction with the front light body (7) and connected in rotation in the axial direction, the lens bracket (5) There are guide grooves (51) and external threads (52) on the side wall, and internal threads (82) are provided on the adjusting ring (8), and the external threads (52) and internal threads (82) are matched and connected, and the limit screw (2) It is fixed on the rear seat (1) and protrudes from the side wall of the rear seat (1), and the limit screw (2) is matched and connected with the guide groove (51).

Description

A zoomable LED lamp

technical field

The invention relates to a variable-focus LED lamp.

Background technique

Because of its outstanding features of high efficiency, energy saving and environmental protection, LED is being used more and more widely in various occasions as a new type of light source. Existing LED lamps are equipped with a light-condensing lens in the direction of light emission of the LED to control the angle of light emission and make the size of the light spot irradiated to a predetermined distance meet the design requirements. However, the distance between the lens and the LED of the existing LED lamps with lenses is fixed and cannot be adjusted as required, so that the size of the light spot cannot be adjusted as required when the lamp is used in different occasions.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a variable-focus LED lamp with adjustable light spot size.

The technical solution adopted in the present invention is: the present invention includes a back seat, an LED with a substrate, a lamp body, and a lens, the LED with a substrate is fixed on the back seat, and the lens is located at the base of the LED with a substrate. In the front, the variable-focus LED lamp also includes a limit screw, a lens bracket, and an adjustment ring. The lamp body includes a front lamp body and a rear lamp body. The head and tail of the rear lamp body are respectively connected to the front lamp The rear part of the lamp body and the rear seat are fixedly connected, the lens is fixed on the lens holder, the adjustment ring is fixed and rotatably connected with the front light body in the axial direction, and the lens holder The side wall is provided with a guide groove and an external thread, and the adjusting ring is provided with an internal thread, and the external thread is matched with the internal thread, and the limit screw is fixed on the rear seat and protrudes from the On the side wall of the rear seat, the limit screw fits and connects with the guide groove.

The rear seat is provided with threading holes.

The afterbody of described rear seat is provided with handle.

The LED with a substrate has an aluminum substrate, the rear seat, the front lamp body, and the rear lamp body are all made of aluminum, and the rear lamp body is provided with a plurality of cooling fins along the circumference.

The beneficial effects of the present invention are: since the present invention includes a limit screw, a lens bracket, and an adjustment ring, the lamp body includes a front lamp body and a rear lamp body, and the head and tail of the rear lamp body are respectively connected to the front lamp body. The rear part of the lamp body and the rear seat are fixedly connected, the lens is fixed on the lens holder, the adjustment ring is fixed and rotatably connected with the front light body in the axial direction, and the lens holder The side wall is provided with a guide groove and an external thread, and the adjusting ring is provided with an internal thread, and the external thread is matched with the internal thread, and the limit screw is fixed on the rear seat and protrudes from the On the side wall of the rear seat, the limit screw is matched and connected with the guide groove. In the present invention, through the cooperation of the limit screw and the guide groove, the lens holder and the lens can only It can move in the axial direction but cannot move in the circumferential direction. When the adjustment ring rotates relative to the front lamp body, through the cooperation between the external thread and the internal thread, the lens holder and the lens are driven along the axial direction. Move up and down, so that the distance between the lens and the LED can be adjusted, and the focal point of the light of the LED passing through the lens can be changed, not only the angle of the light can be controlled, but also the size of the spot irradiated to a predetermined distance can also be adjusted. Change the size, in addition, while adjusting the size of the light spot, its illuminance also changes accordingly, the smaller the light spot, the higher the illuminance, the larger the light spot, the lower the illuminance, that is, the distance between the lens of the present invention and the LED can be adjusted as needed It is easy to adjust, so that the light spot and illuminance can be adjusted according to the needs when the lamp is used in different occasions, so the light spot size of the present invention can be adjusted;

Since the rear seat of the present invention is provided with a threading hole through which the power cord is connected to the LED with a substrate inside, the wiring of the present invention is simple and convenient;

Since the tail of the rear seat in the present invention is provided with a handle, the handle makes it easy to install and disassemble the lamp, which not only meets the needs of appearance and shape, but also can be used as a connecting piece, and the present invention can be used as a basic unit. The design of a series of products can be realized through assembly and combination, so the invention is convenient to take, place and disassemble, and can meet various design needs;

Since the LED with a substrate in the present invention has an aluminum substrate, the rear seat, the front lamp body, and the rear lamp body are all made of aluminum, and the rear lamp body is provided with a plurality of cooling fins in the circumferential direction. In particular, the heat generated by high-power LEDs is transmitted to the rear seat, the rear lamp body and the front lamp body through its aluminum substrate, and is quickly dissipated into the air, so the present invention has good heat dissipation effect and long service life.

Description of drawings

Fig. 1 is a schematic diagram of an explosion structure of the present invention;

Fig. 2 is a schematic sectional structure diagram of the present invention;

FIG. 3 is a schematic diagram of the P-P cross-sectional structure in FIG. 2 .

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3, the present invention comprises rear seat 1, limit screw 2, LED3 with substrate, lamp body, lens holder 5, lens 6, adjusting ring 8, described LED3 with substrate Fixed on the rear seat 1, the lens 6 is located in front of the LED 3 with the substrate, the lamp body includes a front lamp body 7, a rear lamp body 4, the head and tail of the rear lamp body 4 respectively fixedly connected with the tail of the front lamp body 7 and the rear seat 1, the lens 6 is fixed on the lens holder 5, the adjustment ring 8 is axially fixed with the front lamp body 7 and Rotately connected in the axial direction, the side wall of the lens holder 5 is provided with a guide groove 51 and an external thread 52, and the adjusting ring 8 is provided with an internal thread 82, and the external thread 52 is in phase with the internal thread 82 Matching connection, the limit screw 2 is fixed on the rear seat 1 and protrudes from the side wall of the rear seat 1, and the limit screw 2 is fitted and connected with the guide groove 51 so as to The lens bracket 5 is limited in the circumferential direction, the rear seat 1 is provided with a threading hole 11, and the power cord is connected to the inner LED 3 with a substrate through the threading hole 11, and the wiring is simple and convenient. The tail of the seat 1 is provided with a handle 12, which makes it easy to install and disassemble the lamps. It not only meets the needs of appearance and shape, but also can be used as a connecting piece. Using the present invention as a basic unit, a series of products can be realized through assembly and combination. The design can meet various design requirements. The LED 3 with substrate has an aluminum substrate, the rear seat 1, the front lamp body 7, and the rear lamp body 4 are all made of aluminum, and the rear lamp body 4 is made of aluminum. The lamp body 4 is provided with a plurality of cooling fins 41 along the circumference, and the heat generated by the LED, especially the high-power LED, is conducted to the rear seat 1, the rear lamp body 4 and the front lamp body 7 through its aluminum substrate and Quickly dissipate into the air, with good heat dissipation effect and long service life.

In the present invention, through the cooperation of the limit screw 2 and the guide groove 51, the lens holder 5 and the lens 6 can only move in the axial direction and cannot move in the circumferential direction, and the adjustment ring 8 is relatively When the front lamp body 7 rotates, through the cooperation of the external thread 52 and the internal thread 82, the lens holder 5 and the lens 6 are driven to move up and down in the axial direction, so that the relationship between the lens 6 and the LED can be adjusted. Changing the focal point of the light of the LED through the lens 6 can not only control the angle of the light, but also make the size of the spot irradiated to a predetermined distance also adjustable and change the size. In addition, while adjusting the size of the spot, The illuminance also changes accordingly, the smaller the spot, the higher the illuminance, the larger the spot, the lower the illuminance, that is, the distance between the lens and the LED of the present invention can be adjusted according to the needs, and the adjustment is convenient, so that the lamp can be used in different occasions The size of the spot can be adjusted as needed.

The invention can be widely used in the field of lamps.

Claims (4)

1, a kind of varifocal LED light fixture, comprise back seat (1), the LED of belt substrate (3), the lamp body, lens (6), the LED of described belt substrate (3) is fixed on the described back seat (1), described lens (6) are positioned at the place ahead of the LED (3) of described belt substrate, it is characterized in that: described varifocal LED light fixture also comprises stop screw (2), lens carrier (5), adjustable ring (8), described lamp body comprises headlight body (7), back light body (4), the head of described back light body (4), afterbody respectively with the afterbody of described headlight body (7), described back seat (1) is fixedly connected, described lens (6) are fixed on the described lens carrier (5), described adjustable ring (8) and described headlight body (7) are connected at axial restraint and axially rotating, the sidewall of described lens carrier (5) is provided with guide groove (51), external screw thread (52), described adjustable ring (8) is provided with internal thread (82), described external screw thread (52) matches with described internal thread (82) and is connected, described stop screw (2) is fixed in the sidewall that described back seat (1) was gone up and stretched out in to described back seat (1), described stop screw (2) and suitable connection of described guide groove (51).

2, varifocal LED light fixture according to claim 1, it is characterized in that: described back seat (1) is provided with through wires hole (11).

3, varifocal LED light fixture according to claim 1, it is characterized in that: the afterbody of described back seat (1) is provided with handle (12).

4, varifocal LED light fixture according to claim 1 and 2, it is characterized in that: the LED of described belt substrate (3) has aluminium base, described back seat (1), described headlight body (7), described back light body (4) all adopt the aluminium manufacturing, and described back light body (4) upper edge is circumferentially with some radiating fins (41).

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