JP3196107U - Lens for lighting - Google Patents

Abstract

Provided is an illumination lens that solves the problem that a conventional illumination lens cannot accurately control the range and intensity of light rays and the problem that light does not change. A lens body 1 is provided. The lens body 1 has a first surface 11, a second surface 12, and a recess 13. An annular curve is connected between the first surface 11 and the second surface 12. The annular curve is formed by connecting two arc lines 15 that are symmetrical to each other. The two arc lines 15 have a first end point 151 located at one end, a middle point 152 located at the center, and a second end point 153 located at the other end. The illumination lens is as described above. [Selection] Figure 2

Description

  The present invention relates to a lens for illumination, and in particular, uses a curved surface having a plurality of focal points formed by an annular curve adjacent between a first surface and a second surface of a lens body to change the shape and path of light. It relates to the technology to control.

  Currently, many of the light sources of lighting devices use LEDs. The LED has the merit that it can be used for a long time with energy saving. However, when trying to increase the luminous intensity of a lighting device that uses LEDs, a relatively large number of LEDs are used. Therefore, in appearance, it has a plurality of light spots, and the irradiated object becomes dazzling due to the plurality of light spots, a feeling of sensation is generated, and the eyes are easily fatigued. Therefore, using the lighting device and the lens together is the best measure for increasing the luminous intensity.

  In the “light-emitting diode illuminating device with interchangeable lens” described in Patent Document 1, one light-emitting diode is provided in one lamp cup. A saddle in which a circuit board is provided is provided at the rear end of the lamp cup. A lid portion in which an irradiation hole is formed is provided at the front end portion of the lamp cup. In the irradiation hole, a detachable lens located on the front side of the light emitting diode is provided. This lens has various shapes and colors. Therefore, the external appearance or lighting effect of the lighting device can be changed by exchanging different lenses.

  The conventional lens described above is a convex lens. Moreover, the light rays of the light-emitting diode illuminating device are changed by using lenses having different arc degrees. However, this change is limited to the distance and area of irradiation. The ray path cannot be changed. For example, a car light or a bicycle light needs to be capable of irradiating a road surface downward. However, the present light rays are emitted in a ring shape. Therefore, half of the light is irradiated on the upper side of the fixture. This affects the user's line of sight and may be dangerous.

Taiwan Patent No. 343112 Specification

  An object of the present invention is to provide an illumination lens that solves the problem that conventional illumination lenses cannot accurately control the range and intensity of light rays, and the problem that light does not change.

  The illumination lens of the present invention is used for illumination and includes a lens body. The lens body has a first surface, a second surface, and an annular curve connecting the first surface and the second surface. The annular curve is formed by connecting two arc lines that are symmetrical to each other. The two arc lines have a first end point located at one end, a midpoint located at the center, and a second end point located at the other end. Therefore, the first surface forms a curved surface having a plurality of focal points.

  In the illumination lens of the present invention, the lens body is formed in an arc shape from the middle point to the second end point, the arc degree of the first arc-shaped line segment, which is a line segment formed from the first end point to the midpoint. It is formed smaller than the arc degree of the second arc-shaped line segment, which is the line segment being formed.

  In the illumination lens according to the present invention, the lens body includes a line segment formed in an arc shape from the first end point to the midpoint, and a line segment formed in an arc shape from the midpoint to the second end point. Symmetric.

  In the illumination lens of the present invention, the lens body has a recess formed on the inner side surface.

  In the illumination lens of the present invention, the lens body can be coupled to the illumination device. The illumination device includes a scorpio and an LED light source. Illumination devices include car lights, street lights, flashlights, and searchlights.

The advantages of the illumination lens of the present invention are as follows.
1. When an LED (a plurality of LEDs or a single LED) is used as a light source, the light is evenly projected by a curved surface having a plurality of focal points formed by an annular curve of the lens body and controlled to a predetermined position. Since no bright / dark boundary line is generated with the aid of the light shielding piece, the loss of the entire luminous intensity can be reduced.
2. Cost can be reduced by reducing the number of LEDs.
3. By using the LED as the light source, heat generation can be reduced and the competitiveness of the product can be increased.
4. The curved surface having a plurality of focal points formed by the annular curve of the lens body can have an elliptical shape, a circular shape, or a semicircular shape, and can meet various needs.
5. The lens body of the present invention projects light uniformly, thereby improving the sensation caused by a plurality of conventional light sources and suppressing eye fatigue.

It is a perspective view which shows the lens main body by 1st embodiment of this invention. It is a side view which shows the lens main body by 1st embodiment of this invention. It is a schematic diagram which shows the state by which the lens main body by 1st embodiment of this invention is couple | bonded with the lamp. It is a schematic diagram which shows the projection effect of the lens main body by 1st embodiment of this invention. The side view which shows the lens main body by 2nd embodiment of this invention. It is a schematic diagram which shows the projection effect of the lens main body by 2nd embodiment of this invention.

(First embodiment)
An embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the illumination lens according to the first embodiment of the present invention includes a lens body 1. The lens body 1 has a first surface 11, a second surface 12, and a recess 13. An annular curve 14 is connected between the first surface 11 and the second surface 12 (see FIG. 2). The annular curve 14 is formed by joining two arc lines 15 that are symmetrical to each other (see FIG. 1). The two arc lines 15 have a first end point 151 located at one end, a middle point 152 located at the center, and a second end point 153 located at the other end (see FIG. 2). The illumination lens is as described above.

  The lens body 1 of the present invention can be used in combination with various lamps. For example, the present invention can be applied to a car light, a streetlight, a flashlight, a searchlight, and the like. As shown in FIG. 3, the lamp 2 includes a saddle 21 and an LED light source 22. The LED light source 22 is provided in the saddle 21. The saddle 21 is provided with a first coupling portion 23 therein. The lens body 1 is provided with a second coupling portion 130 in the recess 13. The lens body 1 is fixed to the bracket 2 by coupling the second coupling portion 130 to the first coupling portion 23 of the collar 21. The first coupling portion 23 of the collar 21 is provided with a male screw portion. The second coupling portion 130 of the lens body 1 is provided with a female screw portion.

  A first embodiment of the present invention is shown in FIGS. The arc line 15 of the lens body 1 is formed in an arc shape from a first arc-shaped line segment 154 that is an arc-shaped line segment from the first end point 151 to the midpoint 152, and from the midpoint 152 to the second end point 153. It has a second arcuate line segment 155 that is a line segment. The arc degree of the first arc-shaped line segment 154 is smaller than the arc degree of the second arc-shaped line segment 155. The lens body 1 is applied to a bicycle light. The light projected from the LED light source 22 radiates in the forward direction through the first arc-shaped line segment 154. The second arcuate line segment 155 emits light downward. Thereby, light concentrates in the forward direction and the downward direction. Driving safety can be enhanced by making it easier for the user to see the forward direction and the road surface.

(Second embodiment)
A second embodiment of the present invention is shown in FIGS. In the second embodiment, the two arc lines 15A of the lens body 1A are an arc segment 154A that is an arc segment formed from the first end point 151A to the midpoint 152A, and the midpoint 152A from the second end point 153A. The arc-shaped line segment 154A, which is a line segment formed so as to be arc-shaped, is symmetrical with respect to the midpoint 152A. As shown in FIG. 6, the lens body 1A is applied to a searchlight. The light projected from the LED light source 22 is concentrated and emitted in the forward direction through the arc-shaped line segment 154A. Thereby, light can be projected far and the light projected on the target can be concentrated. In addition, the luminous intensity and accuracy of light can be increased.

  As described above, the present invention achieved the expected purpose and effect. Moreover, it is superior to the conventional one. The above-described embodiment is a preferred embodiment of the present invention and does not limit the scope of the utility model registration request of the present invention. All equalizations and modifications within the technical scope of the means for solving the problems of the present invention are included in the scope of the claims for utility model registration of the present invention.

1, 1A lens body,
11 First surface,
12 Second surface,
13 recess,
130 second coupling part,
14 Circular curve,
15, 15A arc wire,
151, 151A First end point,
152, 152A Midpoint,
153, 153A second end point,
154 The first arc segment,
154A arc-shaped line segment,
155 second arcuate line segment,
2 lamps,
21 seat,
22 LED light source,
23 First coupling part.

Claims (4)

It is a lens used for illumination,
With a lens body,
The lens body has a first surface, a second surface, and an annular curve connecting the first surface and the second surface;
The circular curve is formed by combining two arc lines that are symmetrical to each other,
The two arc lines have a first end point located at one end, a middle point located at the center, and a second end point located at the other end, so that the first surface becomes a curved surface having a plurality of focal points. A lens for illumination.   The lens body has a first arc-shaped line segment arcuately formed from the first end point to the middle point, and a line formed in an arc shape from the middle point to the second end point. The illumination lens according to claim 1, wherein the illumination lens is formed to be smaller than an arc degree of a second arcuate line segment.   In the lens body, a line segment formed in an arc shape from the first end point to the midpoint and a line segment formed in an arc shape from the midpoint to the second end point are symmetrical to each other. The illumination lens according to claim 1.   The lens for illumination according to claim 1, wherein the lens body has a recess formed on an inner side surface.

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