JP3172217U - Optical lens and base of transparent lamp - Google Patents

Abstract

An optical lens and a pedestal for an illumination lamp suitable for exhibition or interior lighting are provided. An optical lens of an illumination lamp includes a lens and is assembled to a pedestal 2 and then combined with an LED light source to form an illumination lamp. The lens body 1 includes a flat surface portion 11 provided on the upper portion of the lens body and a projection cone 12 provided on the bottom portion of the lens body. The central part of the projection cone has an accommodating space 121 for accommodating the LED light source 3, and the outer curved surface of the projection cone is composed of a plurality of curved points constituting concentric circles. If this structure is used, the lighting angle, luminous intensity distribution, and illuminance distribution of the LED light source are adjusted, the lighting effect is more concentrated, and it can be applied to exhibitions or indoor lighting. Have. [Selection] Figure 1

Description

  The present invention relates to the field of illumination lamps, and more particularly to an optical lens structure for an exhibition illumination lamp or an indoor illumination lamp.

  Light emitting diodes (LEDs) have advantages such as lower power consumption, higher efficiency, and longer life compared to conventional light sources. When used at the same brightness, the power consumption is 1/10 that of conventional incandescent lamps, 1/2 that of energy-saving bulbs, and the service life of LEDs is substantially 100 times longer. Therefore, in recent years, LEDs have been widely used in fields such as backlight modules for display devices, light sources for indicator lights, or general lighting devices. Since power saving of LEDs has a prominent advantage, practicality is also improved.

Republic of China Patent Notice No. M366083 Republic of China Patent Publication No. M366033 Republic of China Patent Publication No. M366650 Republic of China Patent Publication No. M368767

  However, the irradiation angle of the light emitting diode is smaller than that of the conventional light source. When used for exhibition or indoor lighting, it is necessary to adjust the light emission angle, luminous intensity distribution, and illuminance distribution of the LED to concentrate the light and to effectively improve the intensity of the light. A lens has been developed. However, when used in the lighting field, due to the design of the optical lens structure, the brightness at the center is too concentrated, and the brightness far away from the center of the lighting is very different. appear. Furthermore, among the known optical lenses, the optical performance of LED emission can be modified using the principle of secondary optics, and an optimal illumination state can be provided in various usage situations. As an example of a lamp for exhibition or indoor lighting, the lighting has sufficient brightness and light collection effect, and the basic requirement is to provide a good and comfortable lighting range for the user, and LED light sources are connected to each other And by combining, it is necessary to reduce the interruption phenomenon of the lighting area that affects the lighting effect for reading an exhibition or exhibits. Therefore, how to improve the uniformity of the emission angle, the emission angle, and the illumination intensity of the LED light source is an important issue to be improved by those skilled in the art.

  Therefore, the present inventor has eagerly studied its completeness, and based on many years of experience in the species of the art, the LED light source has been used for the point that current display or lighting lamps are insufficient in terms of usage. The Republic of China Patent Publication No. M366083 (Patent Document 1), which concentrates the luminance through two diffractions and has a uniform illumination effect by the optical lens structure utilizing the principle of secondary optics, the Republic of China Patent publication No. M36663 (Patent Document 2), Republic of China Patent Publication No. M366650 (Patent Document 3), and Republic of China Patent Publication No. M368767 (Patent Document 4) are registered.

  The inventor has developed another kind of optical lens for lighting fixtures through subsequent research. A projection cone is provided on the optical lens, and the outer curved surface of the projection cone is composed of a plurality of curved surface points constituting concentric circles, and the light emission angle, luminous intensity distribution and illuminance distribution of the LED light source can be modified and adjusted. In addition to making the irradiation distribution more concentrated and uniform, it is possible to provide a more comfortable lighting environment for the user and to satisfy the environmental protection requirements of energy saving and carbon reduction.

  With regard to the aforementioned problems, an object of the present invention is to provide an optical lens for an illumination lamp. A projection cone is provided on the bottom surface, and the light emission angle, luminous intensity distribution, and illuminance distribution of the LED light source can be modified and adjusted using the principle of secondary optics. As a result, the illumination distribution of the LED light source can be made more concentrated and uniform, providing a more comfortable lighting environment for the user, and satisfying environmental protection requirements for energy saving and carbon reduction.

  Another object of the present invention is to provide an optical lens structure of an illumination lamp that is convenient to assemble. Stability during use can be ensured by installing a pedestal that can be connected to the LED light source at high speed and a heat radiating hole that can release heat energy when the LED light source emits light at high speed.

  In order to achieve the above object, the optical lens of the illumination lamp of the present invention has a lens body. After the lens body is assembled on the pedestal, it is combined with the LED light source to form an illumination lamp. The lens body has a flat surface provided on the upper surface of the lens body and a projection cone provided on the bottom of the lens body. The central portion of the projection cone is provided with a housing space for housing the LED light source, and the outer curved surface of the projection cone is composed of a plurality of curved points constituting concentric circles. Among them, the straight line on the opening surface of the central opening that passes through the accommodating space forms the reference surface by aligning the center line of the lens body, and the straight line is the X axis, the center line is the Y axis, and d is The length of the unit coordinates and the intersection of the X axis and the Y axis are the coordinate origin. The distance from the curved surface point to the X and Y axes is greater than or equal to zero, each has a relative error p, and −d / 20 ≦ p ≦ d / 20.

  Following the above description, the present invention further provides an embodiment in which different outer curved surfaces are formed in the projection cone. In Example 1, the curved surface points are (2.00, 0), (2.82, 0.82), (3.54, 1.84), (4.03, 2.63), (4.63, 3.69) and (5.21, 5.20), and the plane portion has a hole at a position corresponding to the accommodation space, And the hole is filled with translucent colloid.

  In Example 2, (2.10, 0), (2.70, 1.42), (3.34, 2.37), (3.96, 3.35), (4.57, 4.23) and (5.14, 5.13), and the accommodation space further has a lens portion.

  In Example 3, (1.80, 0), (2.49, 1.35), (3.09, 2.22), (3.70, 3.07), (4.29, 4.00) and (5.05, 5.18), and the accommodation space further has a lens portion.

  In Example 4, (1.78, 0), (2.40, 0.69), (3.12, 1.66), (3.58, 2.38), (4.04, 3.10), (4.65, 4.15) and (5.25, 5.20). In each embodiment, each curved surface point has its own coordinate in the plane of XY coordinates, and therefore, different outer curved surfaces are formed. After they are combined with the LED light source, the light rays can be modified and adjusted by the diffraction principle of second order optics to modify the emission angle, luminous intensity distribution and illuminance distribution of the LED light source.

  Therefore, even if the optical lens structure of the present invention is enlarged or reduced in proportion, it is a main technical feature for achieving the object of the present invention. Among them, the length d of the unit coordinates is 1 mm, and the relative error p is −0.05 mm ≦ p ≦ 0.05 mm. For the convenience of assembling the optical lens, the optical lens may be further provided with a tightening portion provided on the periphery of the lens body, and may be fitted to each other so as to face the pedestal. Furthermore, in order to achieve a more uniform illumination effect after projecting the light source, a diffractive structure is further provided in the plane portion. Form. Alternatively, the diffractive structure is provided in parallel with a plurality of hexagonal diffractive particles to form an effect of spreading the light beam, or a flat surface portion is subjected to a sander finish to form an effect of spreading the light beam.

  In addition, for the convenience of combination with the optical lens of the present invention, the present inventors further provide a pedestal structure. The pedestal includes a partition wall, a light emission hole, a mounting hole, and a pair of heat dissipation holes. The partition wall is provided on the periphery of the pedestal, has a plurality of engaging portions on the partition wall, and is attached to the lens body. The projection cone is covered inside the pedestal. The light emitting hole is provided in the pedestal and corresponds to the position of the LED light source. The mounting holes are respectively provided on both sides of the light emitting hole. The pair of heat radiating holes are respectively provided on both sides of the light emitting hole, and are perpendicular to the position of the mounting hole, and the opening of the heat radiating hole extends to the partition wall.

  The effect of the present invention is that the angle of the outer curved surface of the projection cone provided in the optical lens is utilized, an LED light source is attached inside the accommodation space, and the light is emitted from the LED light source by the diffraction principle of secondary optics. By modifying and adjusting the angle, luminous intensity distribution and illumination distribution, the light rays become more concentrated and uniform, creating a pleasant lighting environment, suitable for exhibition or exhibition use, energy saving and carbon reduction environment Satisfies protection requirements.

It is a three-dimensional exploded view of Example 1 of the present invention. It is the three-dimensional external view after Example 1 assembly of this invention. It is a side view of the XY plane in Example 1 of this invention. It is a ray tracing mode figure of Example 1 of the present invention. It is a structure aspect figure of Example 2 of this invention. It is a side view of the XY plane in Example 2 of this invention. It is a ray tracing mode figure of Example 2 of the present invention. It is a structure aspect figure of Example 3 of this invention. It is a side view of the XY plane in Example 3 of this invention. It is a ray tracing mode figure of Example 3 of the present invention. It is a structure aspect figure of Example 4 of this invention. It is a side view of the XY plane in Example 4 of this invention. It is a ray tracing mode figure of Example 4 of the present invention.

  In order for the examiners to further understand the content of the present invention, please refer to the following explanations by combining the diagrams.

  1 to 4, a three-dimensional exploded view of the first embodiment of the present invention, a three-dimensional external view after assembly, a side view in an XY plane portion, and a ray tracing aspect diagram are referred to. As shown in the drawing, the optical lens of the illumination lamp of the present invention has a lens body 1 and is mounted on a pedestal 2 and then combined with an LED light source 3 to form an illumination lamp.

  Among them, the lens body 1 has a flat surface portion 11 and a projection cone 12. The flat part 11 is provided on the upper surface of the lens body 1. As shown in the figure, the plane portion 11 forms a smooth plane. The projection cone 12 is provided at the bottom of the lens body 1. The central portion of the projection cone 12 has a housing space 121 for housing the LED light source 3, and the outer curved surface of the projection cone 12 is composed of a plurality of curved surface points 122 constituting concentric circles. Subsequently, as shown in FIG. 3, in Example 1, the straight line passing through the central opening surface of the opening provided in the accommodation space 121 and the center line passing through the lens body 1 constitute a reference surface. The straight line is the X axis, the center line is the Y axis, d is the length of the unit coordinates, and the intersection of the X axis and the Y axis is the origin of the coordinates. Among them, the unit coordinate length d is 1 mm, and the relative error p is −0.05 mm ≦ p ≦ 0.05 mm. Further, the distance from the curved surface point 122 to the X and Y axes is greater than or equal to zero. And each has a relative error p, and −d / 20 ≦ p ≦ d / 20. Among them, the curved surface point 122 is (2.00, 0), (2.82, 0.82), (3.54, 1.84), (4.03, 2.) on the plane of the XY coordinates. 63), (4.63, 3.69) and (5.21, 5.20) are formed, and a conical structure that gradually decreases downward is formed. And the position where the plane part 11 respond | corresponds to the accommodation space 121 has opened the hole part 111, and the hole part 111 is filled with translucent glue. In addition, the optical lens may be further provided with a tightening portion 13 provided on the periphery of the lens body 1 and facing the pedestal 2 so as to be fitted to each other.

  The pedestal 2 includes a partition wall 21, a light emission hole 22, a pair of mounting holes 23, and a pair of heat dissipation holes 24. The partition wall 21 is provided around the periphery of the pedestal 2, and the partition wall 21 has a plurality of engaging portions 211 for engaging the lens body 1 at a position near the opening, and the projection cone 12 is mounted on the pedestal 2. Cover inside. The light emitting hole 22 is installed on the pedestal 2 and corresponds to the position of the LED light source 3 so that a part of the LED of the LED light source 3 penetrates into the light emitting hole 22. 22 is projected to the inside of the accommodation space 121 through the space 22. The pair of mounting holes 23 are provided on both sides of the light emitting hole 22 in preparation for mounting the LED light source 3. The pair of heat radiating holes 24 are respectively provided on both sides of the light emitting hole 22 and are perpendicular to the position of the mounting hole 23. The opening of the heat radiating hole 24 extends to the partition wall 21.

  Still referring to FIG. When the LED light source 3 emits light, the light beam enters the accommodation space 121, performs first-order diffraction of the light beam by the reflection area provided in the accommodation space 121, and the diffracted light beam is provided in the projection cone 12. Since the light is diffracted to the inner surface of the curved surface and second-order diffraction is performed, most of the light rays are projected to the outside from the plane portion 11, and some light rays of the book are projected in the opposite direction via the plane portion 11. The However, since it is blocked by the pedestal 2, the brightness and range of the illumination are not affected.

  Continuing, reference is made to FIGS. 5 to 7, a structural aspect diagram of the second embodiment of the present invention, a side view in the XY plane portion, and a ray tracing aspect diagram. As shown in the drawing, the optical lens of Example 2 similarly has a lens body 4, and both surfaces of the lens body 4 have a flat portion 41 and a projection cone 42, respectively. Provided at the bottom of the main body 4, the center of the projection cone 42 has an accommodation space 421, and the outer curved surface of the projection cone 42 is composed of a plurality of curved surface points 422 constituting concentric circles. Among these, the curved surface point 422 is (2.10, 0), (2.70, 1.42), (3.34, 2.37), (3.96, 3.) on the plane of the XY coordinates. 35), (4.57, 4.23) and (5.14, 5.13) are formed, and a conical structure that gradually decreases downward is formed. The accommodation space 421 further includes a lens portion 4211. The plane part 41 similarly has a projection structure 411. The projection structure 411 has a plurality of hexagonal diffractive particles formed in parallel, and has the effect of spreading light rays. In addition, the optical lens may further be provided with a tightening portion 43 on the periphery of the lens body 4. Subsequently, as shown in FIG. 7, the projection cone 42 formed from the lens body 4 of the second embodiment of the present invention, the angle and range when the light beam is projected are more diffused than in the first embodiment. I understand that.

  Further, refer to FIGS. 8 to 10, a structural aspect diagram of the third embodiment of the present invention, a side view in the XY plane portion, and a ray tracing aspect diagram. As shown in the figure, the optical lens of Example 3 similarly has a lens body 5, and both surfaces of the lens body 5 have a flat portion 51 and a projection cone 52, respectively. Provided at the bottom of the main body 5, the center of the projection cone 52 has a receiving space 521, and the outer curved surface of the projection cone 52 is composed of a plurality of curved surface points 522 constituting concentric circles. Among them, the curved surface point 522 is (1.80, 0), (2.49, 1.35), (3.09, 2.22), (3.70, 3.) on the plane of the XY coordinates. 07), (4.29, 4.00) and (5.05, 5.18), and the accommodating space 521 further includes a lens portion 5211 and gradually decreases downward. Form the body. In addition, the optical lens may further be provided with a tightening portion 53 on the periphery of the lens body 5. Furthermore, if the flat surface portion 51 is sanded to the flat surface portion 51, the effect of spreading light rays can be formed. Continuing, as shown in FIG. 10, the projection cone 52 formed from the lens body 5 of the third embodiment of the present invention, the angle and range when light rays are projected are more diffused than in the first embodiment. I understand.

  Further, refer to FIGS. 11 to 13, a structural aspect diagram of the fourth embodiment of the present invention, a side view in the XY plane portion, and a ray tracing aspect diagram. As shown in the figure, the optical lens of Example 4 similarly has a lens body 6, and both surfaces of the lens body 6 have a flat portion 61 and a projection cone 62, respectively. Provided at the bottom of the main body 6, the center of the projection cone 62 has a receiving space 621, and the outer curved surface of the projection cone 62 is composed of a plurality of curved surface points 622 constituting concentric circles. Among them, the curved surface point 622 is (1.78, 0), (2.40, 0.69), (3.12, 1.66), (3.58, 2.) on the plane of the XY coordinates. 38), (4.04, 3.10), (4.65, 4.15) and (5.25, 5.20), forming a conical structure that gradually decreases downward. To do. In addition, the optical lens may be further provided on the periphery of the lens body 6, provided with a fastening portion 63 that is fitted to each other so as to face the pedestal 63, and a stop pillow 631 may be provided on the fastening portion 63. Furthermore, on the plane part 61, it has the projection structure 611, and the projection structure 611 is provided in parallel with the uneven | corrugated linear form, and the light ray forms a long rod-shaped diffusion effect. Subsequently, as shown in FIG. 13, the projection cone 62 formed from the lens body 6 of the fourth embodiment of the present invention, the angle and range when the light beam is projected are more diffused than in the first embodiment. I understand that.

  As described above, in each of the embodiments, each curved surface point 112, 422, 522, 622 has a coordinate in the plane of the XY coordinates, so that after forming a different outer curved surface and combining with the LED light source 3, the light beam is 2 The light emission angle, luminous intensity distribution, and illuminance distribution of the LED light source 3 can be modified and adjusted by the diffraction principle of the next optics. Furthermore, in each embodiment, the same object can be achieved even if the design of the lens bodies 1, 4, 5, 6 is enlarged or reduced in proportion.

DESCRIPTION OF SYMBOLS 1 Lens body 11 Plane part 111 Hole part 112 Translucent glue 12 Projection cone 121 Accommodating space 122 Curved point 13 Tightening part 2 Base 21 Bulkhead 211 Engagement part 22 Light emitting hole 23 Mounting hole 24 Heat radiation hole 3 LED light source [Implementation] Example 2]
DESCRIPTION OF SYMBOLS 4 Lens main body 41 Plane part 42 Projection cone 421 Housing space 4211 Lens part 422 Curved point 43 Fastening part [Example 3]
DESCRIPTION OF SYMBOLS 5 Lens main body 51 Flat part 52 Projection cone 521 Accommodating space 5211 Lens part 522 Curved point 53 Fastening part [Example 4]
6 Lens body 61 Plane portion 62 Projection cone 621 Accommodating space 622 Curved surface point 63 Fastening portion 631 Retaining pillow

Claims (14)

An optical lens of an illuminating lamp, having a lens body, assembled to a pedestal, and then combined with an LED light source to form an illuminating lamp.
A flat portion attached to the upper portion of the lens body;
A projection cone provided on the bottom of the lens body,
The central part of the projection cone is
The housing has a housing space for housing the LED light source, and the outer curved surface of the projection cone is formed of a plurality of curved surface points provided on concentric circles, on the opening surface passing through the center of the opening of the housing space. The straight line forms the center line and the reference plane of the lens body, the straight line is the X axis, the center line is the Y axis, d is the length of the unit coordinates, and the place where the X and Y axes intersect is the coordinate origin. And the distance from the curved surface point to the X and Y axes has a relative error p greater than or equal to zero, and −d / 20 ≦ p ≦ d / 20.   The curved surface points are the points (2.00, 0), (2.82, 0.82), (3.54, 1.84), (4.03, 2.63) on the plane of the XY coordinates. ), (4.63, 3.69) and (5.21, 5.20), the unit coordinate length d is 1 mm, and the relative error p is −0.05 mm ≦ p ≦ 0.05 mm. The optical lens of the illumination lamp according to claim 1, wherein   The optical lens for an illumination lamp according to claim 2, wherein the flat portion corresponds to the accommodation space, and a hole is provided, and the hole is filled with a translucent glue. .   The curved surface points are the respective points (2.10, 0), (2.70, 1.42), (3.34, 2.37), (3.96, 3.35) in the plane of the XY coordinates. ), (4.57, 4.23) and (5.14, 5.13), the unit coordinate length d is 1 mm, and the relative error p is −0.05 mm ≦ p ≦ 0.05 mm. The optical lens of the illumination lamp according to claim 1, wherein   The optical lens for an illumination lamp according to claim 4, wherein the housing space further includes a lens portion.   The curved surface points are the respective points (1.80, 0), (2.49, 1.35), (3.09, 2.22), (3.70, 3.07) in the plane of the XY coordinates. ), (4.29, 4.00) and (5.05, 5.18), the unit coordinate length d is 1 mm, and the relative error p is −0.05 mm ≦ p ≦ 0.05 mm. The optical lens of the illumination lamp according to claim 1, wherein   The optical lens for an illumination lamp according to claim 6, wherein the housing space further includes a lens portion.   The curved surface points are the respective points (1.78, 0), (2.40, 0.69), (3.12, 1.66), (3.58, 2.38) in the plane of the XY coordinates. ), (4.04, 3.10), (4.65, 4.15) and (5.25, 5.20), the unit coordinate length d is 1 mm, and the relative error p is The optical lens for an illumination lamp according to claim 1, wherein -0.05mm≤p≤0.05mm.   The optical lens for an illumination lamp according to any one of claims 1 to 8, further comprising a tightening portion that is provided at a peripheral edge of the lens body and is provided for fitting and fixing to the pedestal.   The optical lens for an illumination lamp according to claim 1, wherein the flat portion further has a diffractive structure.   11. The optical lens of an illumination lamp according to claim 10, wherein the diffractive structure is provided in parallel with concave and convex straight lines to form a rod-like diffusion effect in which light rays are long.   The optical lens of an illumination lamp according to claim 10, wherein the diffractive structure is provided with a plurality of hexagonal diffractive particles arranged in parallel to form an effect of spreading light rays.   The optical lens of the illumination lamp according to claim 1, wherein the flat portion is subjected to a sander finish for forming an effect of spreading light rays. A pedestal of the optical lens of the transparent lamp according to claim 1,
A partition wall provided on the periphery of the pedestal, having a plurality of fitting portions for fitting the lens body, and the projection cone is covered with the partition;
A light emitting hole provided in the base and corresponding to the position of the LED light source;
A pair of mounting holes respectively provided on both sides of the light emitting hole;
Each provided on both sides of the light emitting hole, and perpendicular to the position of the mounting hole,
A pair of heat radiating holes each having an opening extending in the partition wall.

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