CN209960255U - Double glass shell light source - Google Patents

Abstract

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Description

Double glass shell light source

technical field

The utility model relates to a light-emitting light source, in particular to a double-glass shell light source.

Background technique

Hand-held lighting devices such as flashlights are widely used, not only for lighting in various low-brightness scenes in life, but also for medical and cosmetic fields. For example, it is used to illuminate spots, pores and other areas on the human face during facial beauty, or it is used in the treatment process of stomatology, dentistry and other departments to illuminate the lesions. The hand-held lighting device generally includes a housing, a light source arranged in the housing, and a battery for supplying power to the light source.

When used in the medical and cosmetic fields, the handheld lighting device needs to illuminate a small area so that the worker can focus and see the area clearly, but the light spot illuminated by the existing light source generally includes a central The high-brightness area is considered to be a circle of low-brightness areas with low brightness around the high-brightness area. This kind of light spot has a difference in internal and external brightness, and the uniformity and aggregation are not good, which will cause certain interference to workers and make it difficult to focus on the sight middle.

To solve the above problems, it is necessary to provide a light source with better uniformity and concentration.

Utility model content

The purpose of the present invention is to provide a light source with better uniformity and aggregation.

In order to achieve the above purpose, the present invention provides a double-glass shell light source, comprising a main body, a base, an inner-layer glass shell, an outer-layer glass shell and a circuit board with LEDs, the inner-layer glass shell and the outer-layer glass shell Both have a structure with one end open and the other end with a spherical surface, the circuit board is fixed in the main body, the inner glass shell is covered on the LED, and the outer glass shell is covered on the inner glass shell and exposed from one end of the main body, and the base is fixed at the opening at the other end of the main body.

Compared with the prior art, since the double glass shell light source of the present invention is provided with an inner glass shell and an outer glass shell, the light emitted by the LED will pass through the two glass shells successively, which is equivalent to passing through two glass shells. The refraction of the lens makes the light spot obtained by irradiation more uniform and more concentrated, which greatly weakens the problem of the brightness difference between the inside and outside of the light spot, which is conducive to the focus of the staff's sight and reduces the interference.

Preferably, it also includes a positive electrode conductive pin, a positive electrode lead, and a negative electrode lead, the positive electrode conductive pin is fixed to the base and penetrates into the main body, and one end of the positive electrode lead is fixed on the circuit board and connected to the other end. To the positive electrode conductive pin, one end of the negative electrode wire is fixed on the circuit board and the other end is connected to the inner wall of the main body.

Preferably, the outer glass shell has an inner wall opposite to its outer spherical surface, and the inner wall of the outer glass shell and the spherical surface of the inner glass shell are spaced apart.

Preferably, it also includes a light-shielding cover with a cylindrical structure open at both ends, the light-shielding cover is fixed on the circuit board and sleeved on the LED, and the inner glass shell covers the light-shielding cover. cover.

Description of drawings

Fig. 1 is a perspective view of the double glass shell light source of the present invention.

Figure 2 is a perspective view of another angle of the double glass envelope light source.

3 is a cross-sectional view of a double glass envelope light source.

Figure 4 is an exploded view of the double glass envelope light source.

Detailed ways

The preferred embodiments of the present utility model are described below with reference to the accompanying drawings.

As shown in Figures 1 and 2, the present utility model provides a double-glass shell light source, comprising a main body 1, a base 2, an inner glass shell 3, an outer glass shell 4, a light shield 5, a positive electrode conductive nail 6, a positive electrode Wire 71, negative wire 72 and circuit board 9 with LED8.

The main body 1 is a hollow revolving body structure, one end of which is open, and the other end has a through hole 11 through which the outer glass shell 4 passes. The base 2 is fixed on the open end of the main body 1 , and the positive conductive nail 6 is fixed on the base 2 and extends into the main body 1 . The main body 1 and the base 2 are respectively a conductor and an insulator.

The circuit board 9 is fixed in the main body 1 , and the LEDs 8 on the circuit board 9 face the through holes 11 of the main body 1 . One end of the positive lead 71 is fixed on the circuit board 9 and the other end is connected to the positive conductive nail 6 , one end of the negative lead 72 is fixed on the circuit board 9 and the other end is connected to the inner wall of the main body 1 . After the double-glass shell light source is installed into the housing of the handheld lighting device, the positive and negative electrodes of the battery of the device supply power to the circuit board 9 through the main body 1 and the positive conductive nails 6 respectively.

The light shielding cover 5 has a cylindrical structure with two open ends, and the light shielding cover 5 is made of a material that does not transmit light or has a very low light transmittance. The light shield 5 is fixed on the circuit board 9 and is sleeved on the LED 8 . The LED 8 is surrounded by the light shield 5 , and the light emitted by the light shield 5 is shielded, and only the upward light can pass through the light shield 5 .

The inner layer glass shell 3 and the outer layer glass shell 4 are both open at one end and the other end has a spherical structure. The inner layer glass shell 3 is covered on the light shielding cover 5 and the LED 8. The cover 5 is not in contact with the circuit board 9 , but may be directly fixed on the circuit board 9 . The outer layer glass shell 4 is covered on the inner layer glass shell 3 and accommodated in the through hole 11 of the main body 1 . The outer glass shell 4 has an inner wall 41 opposite to its outer spherical surface, and the inner wall 41 of the outer glass shell 4 is spaced from the spherical surface of the inner glass shell 3 . The outer glass shell 4 is fixed by means of interference fit, for example, it can be clamped on the inner glass shell 3 or in the through hole 11 .

Compared with the prior art, since the double glass shell light source of the present invention is provided with an inner layer glass shell 3 and an outer layer glass shell 4, the light emitted by the LED 8 will pass through the two glass shells 3 and 4 successively, which is quite equivalent. Therefore, after the refraction of the two lenses, the irradiated light spot is more uniform and more concentrated, which greatly weakens the problem of the brightness difference between the inside and outside of the light spot, which is conducive to the focus of the staff's sight and reduces the interference.

The above disclosure is only a preferred example of the present invention, and its function is to facilitate the understanding and implementation of the present invention by those skilled in the art. Of course, the scope of rights of the present invention cannot be limited by this. Therefore, a patent application is made according to the present invention. The equivalent changes made by the scope still belong to the scope covered by the present invention.

Claims (4)

1. a double glass shell light source, is characterized in that: comprise main body, base, inner layer glass shell, outer layer glass shell and circuit board with LED, Both the inner glass shell and the outer glass shell have a structure in which one end is open and the other end has a spherical surface, the circuit board is fixed in the main body, the inner glass shell covers the LED, and the outer layer The glass shell cover is on the inner glass shell and exposed from one end of the main body, and the base is fixed at the opening of the other end of the main body. 2 . The double-glass shell light source according to claim 1 , further comprising a positive electrode conductive pin, a positive electrode lead, and a negative electrode lead, the positive electrode conductive pin is fixed to the base and penetrates into the main body, and the One end of the positive wire is fixed on the circuit board and the other end is connected to the positive conductive nail, and one end of the negative wire is fixed on the circuit board and the other end is connected to the inner wall of the main body. 3 . The double-glass shell light source according to claim 1 , wherein the outer glass shell has an inner wall opposite to its outer spherical surface, and the inner wall of the outer glass shell is connected to the spherical surface of the inner glass shell. 4 . Interval setting. 4 . The double-glass shell light source according to claim 1 , further comprising a light blocking cover having a cylindrical structure with two ends open, the light blocking cover being fixed on the circuit board and sleeved on the LED, the inner glass shell is covered on the light shield.

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