CN203395604U - led flashlight - Google Patents

Abstract

The utility model discloses an LED flashlight, comprising an LED light source, a conical light-transmitting cup arranged in front of the LED light source, a focusing hole arranged at the top of the light-transmitting cup, and a reflective cup sleeved on the outer wall of the light-transmitting cup. Light emitted by the LED light source is focused into the focusing hole in the light-transmitting cup, and then emitted from the focusing hole, so that the brightness of the emitted light spot is more uniform, and the reflective cup sleeved on the outer wall of the light-transmitting cup can reflect the light emitted from the outer wall of the light-transmitting cup back, thereby reducing light loss.

Description

led flashlight

technical field

The utility model relates to a flashlight for lighting.

Background technique

Most of the existing LED flashlights use reflective cups to focus. The advantage is that the spots are uniform. However, due to the characteristics of LEDs, the biggest disadvantage is that the projected light loss is large, so that a lot of light cannot reach the focus point, wasting energy. At present, there are Some manufacturers have begun to use LED light-transmitting cups for flashlights. The focusing principle of the light-transmitting cup is that the entire light-transmitting cup transmits light to form a focusing lens, so that the light emitted by the LED light source is refracted and reflected in the light-transmitting cup to form a focusing effect. But LED The smaller the focusing angle of the light-transmitting cup, the greater the loss of light, and the smaller the focusing angle, the unevenness of the focus will occur, which will affect the effect of light.

Contents of the invention

The purpose of the utility model is to provide an LED flashlight, which can improve the focusing effect of the existing light-transmitting cup, so that the light emitted by the flashlight can illuminate farther and brighter, and the light spots are uniform.

The utility model realizes the above object like this:

The LED flashlight includes an LED light source. A cone-shaped light-transmitting cup is arranged in front of the LED light source. A focusing hole is provided on the top of the light-transmitting cup, and a reflective cup is set on the outer wall of the light-transmitting cup.

Wherein, the front end of the light-transmitting cup is provided with a light guide cover, and the light guide cover is provided with a diffuse reflector, and the LED light source is incident on the diffuse reflector and emitted after being diffusely reflected.

Wherein, the LED light source is divided into a main light source and an auxiliary light source. The light emitted by the main light source enters the light-transmitting cup.

Wherein, the inner wall of the light-transmitting outer cover is provided with an arc-shaped reflective surface.

Wherein, there are multiple main light sources, and each main light source is independently provided with a light-transmitting cup, and the tops of the light-transmitting cups are respectively provided with focusing holes.

Wherein, the light guide cover is provided with a buckle, and the outer wall of the corresponding light-transmitting cup is provided with a buckle hole, and the buckle and the buckle hole cooperate to fix the light guide cover and the light-transmitting cup.

The beneficial effects of the utility model are: the light emitted by the LED light source is focused into the focusing hole in the light-transmitting cup, and then emitted from the focusing hole, so that the emitted light spot brightness is more uniform, and the outer wall of the light-transmitting cup is socketed The high-quality reflective cup can reflect the light emitted by the outer wall of the transparent cup, so as to reduce light loss.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the split diagram of the first embodiment of the present utility model;

Fig. 2 is the split view of the second embodiment of the utility model;

Fig. 3 is the split diagram of the third embodiment of the present utility model;

Fig. 4 is a perspective view of the light-transmitting cup and the light-transmitting outer cover of the present invention.

Detailed ways

Referring to Figures 1 to 3, the LED flashlight includes an LED light source 1, a conical light-transmitting cup 2 is arranged in front of the LED light source 1, and a focusing hole 3 is provided on the top of the light-transmitting cup 2, and the light-transmitting cup 2 The outer wall suit has a reflector 4. The light emitted by the LED light source 1 is focused into the focusing hole 3 in the transparent cup 2, and then emitted from the focusing hole 3, so that the emitted light spot brightness is more uniform, and the reflective cup socketed on the outer wall of the transparent cup 2 4. It can reflect back the light emitted from the outer wall of the light-transmitting cup 2, thereby reducing light loss.

When low-beam lighting is required, the focused light beam produced by the above structure cannot meet the needs of lighting. Therefore, it is necessary to add a light guide cover 5 to the front end of the light-transmitting cup 2, and the light guide cover 5 is provided with a diffuse reflector 6. The LED light source 1 is incident on the diffuse reflector 6 and emitted after being diffusely reflected, that is, the light guide cover 5 can convert the focused light of the flashlight into diffusely scattered light, and the LED flashlight at this time can be used as a light bulb for low beam lighting. In order to facilitate the installation of the light guide cover 5, the light guide cover 5 is provided with a buckle 51, and the outer wall of the corresponding light-transmitting cup 2 is provided with a buckle hole 52, and the buckle 51 cooperates with the buckle hole 52 to fasten the light guide cover. 5 is fixed with light-transmitting cup 2.

In order to enable the LED flashlight to be used as a warning light, the LED light source 1 is divided into a main light source 11 and an auxiliary light source 12. The light emitted by the main light source 11 enters the light-transmitting cup 2, and the light-transmitting cup 2 is also equipped with a light-transmitting outer cover. 7. The auxiliary light source 12 generally adopts a red LED light source 1, and the light emitted by the auxiliary light source 12 enters the light-transmitting cover 7, so that the entire light-transmitting cover emits red light, so that it can be used as a warning light in an emergency. In order to increase the reflection effect of the light-transmitting outer cover 7, the inner wall of the light-transmitting outer cover 7 is provided with an arc-shaped reflective surface 8, which can make the projection range of the light scattering of the auxiliary light source 12 farther and wider, refer to the figure 4.

Some situations that require high-brightness lighting require multiple main light sources 11 for lighting, so each main light source 11 is independently provided with a light-transmitting cup 2, and the tops of the light-transmitting cups 2 are respectively provided with focusing holes 3, as shown in FIG. 3 .

Claims (6)

1.LED flashlight, comprise LED light source (1), LED light source (1) the place ahead arranges the printing opacity cup (2) of taper, it is characterized in that: the top of described printing opacity cup (2) is provided with a focusing hole (3), and the outer wall of printing opacity cup (2) is set with a reflector (4).

2. LED flashlight according to claim 1, it is characterized in that: the front end of described printing opacity cup (2) is provided with light-guiding shade (5), described light-guiding shade (5) is provided with diffuse reflector (6), and LED light source (1) is penetrated after diffuse reflection after inciding diffuse reflector (6).

3. LED flashlight according to claim 1, it is characterized in that: described LED light source (1) is divided into main light source (11) and secondary light source (12), the light that described main light source (11) sends enters printing opacity cup (2), printing opacity cup (2) is outer is also provided with light transmission outer cover (7), and the light that secondary light source (12) sends enters light transmission outer cover (7).

4. LED flashlight according to claim 3, is characterized in that: the inwall of described light transmission outer cover (7) is provided with curved reflecting surface (8).

5. LED flashlight according to claim 3, is characterized in that: described main light source (11) is provided with a plurality of, and each main light source (11) is independently provided with printing opacity cup (2), and printing opacity cup (2) top all arranges respectively focusing hole (3).

6. LED flashlight according to claim 2, it is characterized in that: described light-guiding shade (5) is provided with fastener (51), the outer wall of corresponding printing opacity cup (2) is provided with snapping hole (52), and fastener (51) coordinates light-guiding shade (5) and printing opacity cup (2) fixing with snapping hole (52).

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