CN101377281B - Variable focus type light-emitting diode light source base - Google Patents

Abstract

A light source base of LED comprises a LED light source, a cylindrical shell and a focusing body. The cylindrical shell covers the light emitting diode light source, and the outer wall of the cylindrical shell is provided with a first thread. The inner wall of the focusing adjusting body is provided with a second thread matched with the first thread. The optical lens is fixed in the focus adjusting body and is provided with a light receiving groove, wherein the second thread and the first thread of the focus adjusting body are matched and rotate relative to the hollow cylindrical shell, and the distance between the bottom wall of the light receiving groove and the light emitting diode light source is adjusted.

Description

Variable focus LED light source holder

technical field

The invention relates to a light emitting diode light source seat.

Background technique

The current design of the LED light source base, in order to meet the client's requirements for different angles or various light patterns, there are various optical accessories designs due to specifications. However, there is an undeniable added cost for each optical component design developed. How to reduce the types of optical accessories of LED light source bases is a problem that manufacturers are desperately trying to overcome.

Contents of the invention

Therefore, the object of the present invention is to provide a variable-focus LED light source seat.

According to the above-mentioned objective of the present invention, a variable-focus LED light source seat is proposed, which includes an LED light source, a cylindrical housing, and a cylindrical focus adjustment body. The cylindrical casing covers the LED light source, and its outer wall has a first screw thread. The inner wall of the cylindrical focus adjustment body has a second thread to cooperate with the first thread. The optical lens is fixed in the cylindrical focus adjustment body and has a light receiving groove, wherein the second thread of the cylindrical focus adjustment body is matched with the first thread to rotate relative to the hollow cylindrical shell , and adjust the distance between the bottom wall of the light-receiving groove and the LED light source.

Applying the light-emitting diode light source seat of the present invention, the light source seat housing is divided into two parts, one part contains an optical lens, and the distance between the optical lens and the light-emitting diode light source is adjusted by using the function of adjusting the distance between the two parts, and then the light source seat is adjusted. The focus of the light. The design of the above-mentioned LED light source seat can have the function of adjusting the focus to meet various types of light sources, and can also form different forms of light patterns.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is a housing of an LED light source seat according to an embodiment of the present invention;

Fig. 2 is an operation situation of a light emitting diode light source seat according to an embodiment of the present invention; and

FIG. 3 and FIG. 4 respectively show the relationship between the lens and the light source of an LED light source seat according to an embodiment of the present invention.

Among them, reference signs

100: LED light source seat

102: Focus adjustment body

102a: Thread

104: Optical lens

104a: light receiving groove

106: Cylindrical shell

106a: Thread

106b: opening

108: carrier board

110: LED light source

110a: light-emitting surface

120: direction

120a: Light source focus range

130: direction

130a: Light source focus range

Detailed ways

Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

As mentioned above, the present invention provides a variable-focus light-emitting diode light source seat. The light source seat housing is divided into two parts, one of which contains an optical lens, and the function of adjusting the distance between the two parts is used to adjust the distance between the optical lens and the light-emitting diode. The distance from the light source, and then adjust the focus of the light from the light source seat.

Please refer to FIG. 1 , which illustrates a housing of an LED light source holder according to an embodiment of the present invention. The housing includes a cylindrical housing 106 and a cylindrical focus adjustment body 102 . The annular outer wall of the cylindrical housing 106 has threads 106a. In addition, the cylindrical casing 106 also has an opening 106b for installing an LED light source. The annular inner wall of the cylindrical focus adjustment body 102 has a thread 102a, which is used to cooperate with the thread 106a of the cylindrical housing 106, so that the cylindrical focus adjustment body 102 can rotate relative to the cylindrical housing 106 (screw in or out). The optical lens 104 is disposed in the cylindrical focus adjustment body 102 for adjusting the focus of the light output from the light source seat.

Please refer to FIG. 2 , which illustrates an LED light source holder according to an embodiment of the present invention. The LED light source base 100 includes an LED light source 110 , a cylindrical housing 106 and a cylindrical focus adjustment body 102 . The LED light source 110 is mounted on a carrier board 108 (such as a substrate with high thermal conductivity). The LED light source 110 passes through the opening 106b and is installed in the cylindrical casing 106 . The cylindrical housing 106 and the focus adjustment body 102 are assembled by mutual threads. When the LED light source holder 100 is assembled, the LED light source 110 will be located in the light receiving groove 104 a of the optical lens 104 . Moreover, the focus adjustment body 102 can rotate (screw in or out) relative to the cylindrical housing 106 according to the cooperation between the thread 102a and the thread 106a, and adjust the bottom wall of the light receiving groove 104a relative to the LED light source. 110, and then adjust the focus of the light output from the light source seat 100. For example, the focus adjustment body 102 can be rotated along direction 120 to obtain a larger light source focus range 120a, or the focus adjustment body 102 can be rotated along direction 130 to obtain a smaller light source focus range 130a.

Please refer to FIG. 3 and FIG. 4 , which respectively illustrate the relationship between the lens and the light source of an LED light source holder according to an embodiment of the present invention. In order to improve the luminous efficiency of the LED light source holder, the light receiving groove 104a of the optical lens 104 should cover the LED light source 110 so that the light source will not leak out. More specifically, the rotation range of the focus adjustment body 102 relative to the hollow cylindrical housing 106 should make the light emitting surface 110a (convex surface) of the LED light source 110 continuously located in the light receiving groove 104a. The depth of the light receiving groove 104a can be greater than the height of the LED light source 110, so that the light receiving groove 104a can completely cover the LED light source 110 (as shown in FIG. 3 ). Therefore, the rotation range of the focus adjustment body 102 relative to the hollow cylindrical housing 106 can also be increased, while meeting the above requirements. FIG. 4 shows the farthest distance between the bottom wall of the light receiving groove 104 a and the LED light source 110 . The above-mentioned shapes of the optical lens 104 , light-receiving groove 104 a and light-emitting surface 110 a are not limited to those shown in the drawing, and anyone skilled in the art can choose different optical designs according to requirements.

It can be seen from the above-mentioned preferred embodiments of the present invention that when the light-emitting diode light source seat of the present invention is applied, the light source seat housing is divided into two parts, one part contains an optical lens, and the function of adjusting the distance between the two parts is used to adjust the distance between the optical lens and the optical lens. The distance of the light source of the LED can be adjusted to adjust the focus of the light emitted from the light source seat. The design of the above-mentioned LED light source seat can have the function of adjusting the focus to meet various types of light sources, and can also form different forms of light patterns.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (3)

1. a LED light source base capable of focusing is characterized in that, comprises at least:

One LED source, this LED source has an exiting surface;

One cylindrical shell covers this LED source, and its outer wall has first screw thread;

The burnt poly-body of adjusting of one cylindrical shape, its inwall has second screw thread and this first threaded engagement; And

One optical lens, be fixed in burnt poly-the adjustment in the body of this cylindrical shape, this optical lens comprises one and receives the light groove, wherein the burnt poly-body of adjusting of this cylindrical shape is by cooperating with respect to this hollow circle tube housing turn between this second screw thread and this first screw thread, and adjust the distance of this optical lens with respect to this LED source, the burnt poly-scope of adjusting body with respect to this hollow circle tube housing turn of this cylindrical shape makes this exiting surface of this LED source continue to be positioned at this receipts light groove.

2. LED light source base capable of focusing according to claim 1 is characterized in that, this exiting surface is a convex surface.

3. LED light source base capable of focusing according to claim 1 is characterized in that, this of the burnt poly-adjustment body of this cylindrical shape received the height of the degree of depth of light groove greater than this LED source.

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