TWI414726B - Light collecting lens, module and lamp with multiple curvature surfaces - Google Patents

Abstract

The present invention relates to light collecting lens, a module and a lamp with multiple curvature surfaces. The light collecting lens comprises a light incoming surface and a light outgoing surface, wherein the light incoming surface is provided with crest lines in X and Y axes, both crossed to each other, so as to divide into first, second, third and fourth curved subsurfaces. Any two different points on the X-axis crest line have the same curvature in the Y axis; on the other hand, any two different points on the Y-axis crest line have the same curvature in the X axis. The curvatures in the X-axis and Y-axis of the first to fourth curved subsurface will be the same or different. Still, the crest lines in the X axis between the first and second curved subsurfaces, or those between the third and fourth curved subsurfaces will form an included angle &thgr; with the X axis, which ranges from 0 degree to 30 degree. Accordingly, after a light source emits light into the light collecting lens, the light will be projected to make a light form, so that the light collecting lens can be applied in a light collecting module and/or a lamp.

Description

Collecting lens, collecting module and lamp for multi-curvature compound curved surface

The invention relates to a collecting lens, a collecting module and a lamp for a multi-curvature compound curved surface, in particular to a design of a multi-curvature compound curved surface, so that the collecting lens can project a light shape conforming to the illumination effect. Brightness, which can be applied to collector modules and lamps.

According to the current lighting trend of locomotives or automobiles, the main trend is toward the development of more powerful lighting functions, longer service life, more energy saving, smaller size, and more convenient design of car lamps.

The traditional lamp structure can be referred to in the "lights" of the Chinese Patent No. I294370. The lamp disclosed in the prior art includes a light-emitting element, a baffle, a lens and an ellipsoidal mirror. . The illuminating element is a halogen bulb mounted in an elliptical mirror, and the lens is disposed on the optical path behind the baffle, the baffle being located at the optical axis focus of the ellipsoidal mirror. When the light-emitting element is activated, it will radiate light in all directions. After the emitted light hits the elliptical mirror, it is reflected to the focus of the elliptical mirror, and the baffle blocks the light reflected to the focus. Only part of the light passes through the baffle and exits through the lens to obtain a beam of a specific cross-sectional shape that conforms to the lights regulations.

However, due to the light emitted by the light-emitting elements of the lamp, energy is lost due to reflection by the elliptical mirror, and the light is blocked by the baffle in order to shape the light beam, thereby making use of the light of the lamp. The rate is not good.

Based on this, the inventor of the invention patent No. I294370 of China No. I294370 developed a lamp suitable for improving light utilization. The light is designed to provide a beam of light along a direction of illumination. At the same time, the cross section of the light beam emitted by the lamp in the vertical direction of illumination is a predetermined shape. To achieve the above object, the lamp mainly includes a surface type light-emitting element and a lens system. The lens system is disposed in a path of light emitted by the surface-type light-emitting element, and the surface-type light-emitting element has a light-emitting surface for providing light. At the same time, the shape of the light-emitting surface corresponds to the aforementioned predetermined shape. Therefore, the cross-sectional shape of the light beam provided by the surface-type light-emitting element is the shape of the light-emitting surface, that is, the aforementioned predetermined shape. In this way, after the light emitted by the surface-type light-emitting element passes through the lens system and is emitted outward, the cross-section of the formed light beam is already the aforementioned preset shape, and no other optical components are required to cross-sectional shape. Shaped, thus reducing the brightness degradation caused by the shaping process.

However, since the surface-type light-emitting element of the luminaire is arranged in a predetermined shape by a plurality of point light sources (for example, light-emitting diode wafers), or is packaged, or a single light-emitting diode wafer and its light-emitting surface corresponds to It is made up of shapes; therefore, there is still a need for improvement in the actual implementation of the lamp. That is: 1. When the surface type light-emitting element is arranged in a predetermined shape by a plurality of point light sources, and then packaged, the number of point light sources to be used is large, and the shape of the point light source arrangement must also follow when changing the projected light shape. Change, the scope of the package is of course also changed, can not be applied Large-scale production of finished products; 2, when the surface-type light-emitting element is composed of a single light-emitting diode wafer and its light-emitting surface is formed by a predetermined shape, the production is more troublesome, and the cover is required to make the light-emitting surface correspond to the preset shape. When a part of the light-emitting surface is covered with a mask, it is packaged and formed, in particular, the light-emitting diode chip is a small part, so that a part of the light-emitting surface is covered by a mask on the light-emitting surface. There are difficulties in the operation, and there is also a problem of precision. In addition, this method is a customized product, and must be produced separately by the manufacturer, so the manufacturing cost is also high.

An object of the present invention is to provide a collecting lens of a multi-curvature composite curved surface, which is mainly designed to transmit a light beam conforming to the light shape and brightness of the illumination effect by designing a multi-curvature composite curved surface.

A second object of the present invention is to provide a collecting module that uses the multi-curvature composite curved surface to cooperate with a point source to form an optical module.

The third object of the present invention is to provide a luminaire capable of illuminating a combination of a substrate and a transmissive cover by using a concentrating lens of the multi-curvature composite curved surface in combination with a point source.

The invention provides a collecting lens of a multi-curvature compound curved surface, wherein a surface of the point light source entering the collecting lens is a light incident surface, and a surface of the light leaving the collecting lens is a light emitting surface, and the light emitting surface is formed to cross each other. The X-axis ridge line and the Y-axis ridge line, and thus the light-emitting surface is divided into the first to fourth-area curved surfaces [in the clockwise direction], wherein the X-axis ridge line and the Y-axis ridge line have no slope discontinuity Phenomenon, as the X-axis ridge line in the positive and negative direction and the curvature of the Y-axis ridge line in the positive and negative directions change, the light-emitting surface becomes a smooth light-emitting surface; the light-emitting surface of the collecting lens does not include the geometric optical axis and the light The axis is collinear and spherical and parabolic when not collinear; The X-axis ridgeline between the first and second regional curved surfaces or the X-axis ridgeline between the third and fourth regional curved surfaces has an angle θ with the X-axis, and the angle θ is between 0 and 30 degrees; After the light of the point source enters the collecting lens, the preset light shape can be projected.

The present invention further provides a light collecting module, the light collecting module comprising at least a point light source and a collecting lens of a multi-curvature composite curved surface as described above, the point light source being located on a light incident surface side of the collecting lens.

The present invention further provides a luminaire for illumination, the luminaire comprising at least one concentrating module, a substrate for arranging the concentrating module, and a cover disposed on a light emitting surface side of the concentrating module A translucent cover that is attached to the substrate.

(1)‧‧‧Collection lens

(11)‧‧‧Into the glossy surface

(12) ‧‧‧Glossy

(13)‧‧‧X axial ridgeline

(121)~(124)‧‧‧First to four-area surfaces

(131)‧‧‧X axial ridgeline

(132)‧‧‧X axial ridgeline

(14)‧‧‧Y axial ridgeline

(θ)‧‧‧ angle

(A) ‧‧‧Preset shapes

(A1)‧‧‧section shape

(A2)‧‧‧section shape

(A3)‧‧‧section shape

(A4)‧‧‧section shape

(B) ‧‧‧Light collection module

(C) ‧ ‧ lamps

(3) ‧‧‧Substrate

(4) ‧ ‧ permeable cover

(2) ‧ ‧ point light source

(θ1)‧‧‧ angle

(θ2)‧‧‧ angle

First: a stereoscopic appearance of the collecting lens of the present invention

Second: front view of the collecting lens of the present invention

Third: top view of the collecting lens of the present invention

Figure 4: Side view of the collecting lens of the present invention

Figure 5 is a perspective view of another preferred embodiment of the collecting lens of the present invention

Figure 6 is a schematic diagram showing the preset light shape formed by the light beam of the point source after penetrating the collecting lens of the present invention in the vertical light emitting direction.

Figure 7 is a diagram showing a light pattern of the light collecting lens of the present invention after being projected by light

Figure 8 is a diagram showing the dihedral pattern of the light collecting lens of the present invention after being projected by light.

Figure 9 is a three-dimensional diagram showing the light projection of the collecting lens of the present invention

The tenth figure shows the four-light diagram of the light collecting lens of the present invention after the light is projected

Figure 11: Schematic diagram of the collecting lens of the present invention applied to a light emitting module

Figure 12: Schematic diagram of the light-emitting module of the present invention applied to a lamp

The objects, features, and advantages of the invention will be apparent from the description and appended claims.

The first figure is a perspective view of a collecting lens of a multi-curvature composite curved surface according to an embodiment of the invention. Referring to the first figure, the collecting lens (1) of the multi-curvature compound curved surface has a light incident surface (11) and a light exit surface (12), and a surface defining a point light source entering the light collecting lens (1) is a light incident surface (11). And the surface of the point light source leaving the collecting lens (1) is the light emitting surface (12). Referring to the second to fourth figures, the light-emitting surface (12) is formed with mutually intersecting X-axis ridge lines (13) and Y-axis ridge lines (14), and the mutually intersecting X-axis ridge lines (13) And the Y-axis ridge line (14) divides the light-emitting surface (12) into the first to fourth-area curved surfaces (121) to (124) in a clockwise direction; wherein the first and second regional curved surfaces (121) and (122) are shared X-axis ridgeline (13), first and fourth-area curved surfaces (121), (124) share Y-axis ridgeline (14), and second and third-area curved surfaces (122), (123) share Y-axis ridgeline (14) The third and fourth regional curved surfaces (123) and (124) share the X-axis ridgeline (13); there is no slope discontinuity on the X-axis ridgeline (13) and the Y-axis ridgeline (14), The curvature of the X-axis ridgeline (13) in the positive and negative directions and the Y-axis ridgeline (14) in the positive and negative directions changes, so that the light-emitting surface (12) becomes a smooth light-emitting surface; the light of the collecting lens (1) Face (11) does not contain The spherical and parabolic surfaces of the geometric optical axis and the optical axis are collinear and non-collinear.

According to another preferred embodiment of the present invention [refer to FIG. 5], the collecting lens (1) of the present invention is located at an X-axis ridgeline (131) between the first and second regional curved surfaces (121) and (122). Or the X-axis ridgeline (132) between the third and fourth regional curved surfaces (123) and (124) has an angle (θ) with the X-axis, and the angle (θ) is between 0 and 30 degrees.

Hereinafter, referring to the sixth and fifth figures, a point light source (2) is placed on the light incident surface (11) side of the collecting lens (1) of the present invention, and when the point light source (2) emits light, After the light beam is passed through the light collecting surface (12) of the multi-curvature composite curved surface by the collecting lens (1) of the present invention, the cross section of the emitted light beam in the vertical light emitting direction can be a predetermined shape (A).

Referring to Fig. 7, the cross-sectional shape (A1) of the light beam formed by the light emitted by the point source (2) after passing through the collecting lens (1) of the present invention and being emitted outward. The cross-sectional shape (A1) shown is that the X-axis curvature (X _{1 , 2K} ) of the first and second regional curved surfaces (121) and (122) on the light-emitting surface (12) of the collecting lens (1) is larger than The X-axis curvature (X ₃ , _4K ) of the _three- and four-region curved surfaces (123) and (124), and the Y-axis curvature (Y _1~4K ) in the first to fourth regional curved surfaces (121) to (124) Equal, and the X-axis ridgeline (131) between the first and second regional curved surfaces (121) and (122) and the X-axis ridgeline (132) and X between the third and fourth regional curved surfaces (123) and (124) The angle formed by the angle between the axes (θ) is 0 degrees.

Referring to the eighth figure, the formation of the light shape is based on the X-axis curvature of the first to fourth regional curved surfaces (121) to (124) on the light-emitting surface (12) of the collecting lens (1) ( X _{1 ~ 4K)} are equal, and the first and fourth surface region (121), (124) of the Y-axis of curvature _(Y 1,4K) is smaller than the second and third surface area (122), (123) of the Y-axis Curvature (Y 2, _3K ), and the X-axis ridgeline (131) between the first and second regional curved surfaces (121) and (122) and the X-axis between the third and fourth regional curved surfaces (123) and (124) A cross section of a beam formed by a point source (2) passing through the collecting lens (1) and projecting outward when the angle (θ) between the ridge line (132) and the X axis is 0 degrees. Shape (A2).

As shown in the ninth and tenth figures, the cross-sectional shape (A3), (A4) of the light beam formed when the light emitted by the point source (2) penetrates the collecting lens (1) of the present invention and is emitted outward. ). Wherein, the X-axis curvature (X ₁ ) in the first to fourth regional curved surfaces (121) to (124) on the light-emitting surface (12) of the collecting lens (1) penetrated by the light source of the point source (2) _~4K ) is equal, and the Y-axis curvatures (Y _1~4K ) in the first to fourth regional curved surfaces (121) to (124) are also equal, and the first and second regional curved surfaces (121) and (122) are The angle between the X-axis ridgeline (131) and the X-axis (θ) is greater than 0 degrees, and the angle between the X-axis ridgeline (132) between the main and four-region curved surfaces (123) and (124) and the X-axis (θ) is equal to 0 degrees. The angle (θ1) of the ninth figure is smaller than the angle (θ2) of the tenth figure, the angle (θ1) disclosed by the ninth figure is 17 degrees, and the angle (θ2) disclosed by the tenth figure is 30 degrees.

In addition, please refer to FIG. 11 , which discloses a schematic diagram of applying the collecting lens (1) of the present invention to the light collecting module (B). The light collecting module (B) comprises a collecting lens (1) and a point light source (2) corresponding to a light incident surface (11) side of the collecting lens (1); thus, when the point light source (2) When driven to emit light, the light generated by the point source (2) will penetrate the collecting lens (1) and be emitted outward. A predetermined light shape is produced by the cross section in the vertical light emitting direction.

The figure shown in Fig. 12 is a schematic diagram of applying the above-mentioned light collecting module (B) to the lamp (C). The luminaire (C) includes at least one concentrating module (B), a substrate (3) for the concentrating module (B), and a concentrating module (B). A light-transmitting cover (4) on the light-emitting surface side and fixed to the substrate (3). Accordingly, the luminaire (C) is available for use in motor vehicle lights or other lighting fixtures for lighting purposes.

The above is only a part of the embodiments of the present invention, and is not intended to limit the present invention. It is intended to be included in the scope of the present invention.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific technical means disclosed therein have not been seen in similar products, nor have they been disclosed before the application, and have completely complied with the patent law. The regulations and requirements, the application for invention patents in accordance with the law, and the application for review, and the grant of patents, are truly sensible.

(1)‧‧‧Collection lens

(11)‧‧‧Into the glossy surface

(12) ‧‧‧Glossy

Claims (4)

A collecting lens of a multi-curvature compound curved surface, the collecting lens (1) has a light incident surface (11) and a light exit surface (12), and the light exit surface (12) is formed with X-axis ridge lines (13) crossing each other. And the Y-axis ridge line (14), the mutually intersecting X-axis ridge line (13) and the Y-axis ridge line (14) divide the light-emitting surface (12) into the first to fourth-area curved surfaces (121) in a clockwise direction~ (124), the first and second regional curved surfaces (121) and (122) share the X-axis ridgeline (13), and the third and fourth regional curved surfaces (123) and (124) share the X-axis ridgeline (13). The first and fourth regional curved surfaces (121) and (124) share the Y-axis ridgeline (14), and the second and third regional curved surfaces (122) and (123) share the Y-axis ridgeline (14); the X-axis ridgeline (13) There is no slope discontinuity between the upper and the Y-axis ridgelines (14), and the X-axis ridgeline (13) in the positive and negative directions and the curvature of the Y-axis ridgeline in the positive and negative directions are changed to make the illuminating surface (11) becoming a smooth light-emitting surface; the light-emitting surface (11) of the collecting lens (1) does not include a spherical surface and a paraboloid when the geometric optical axis is collinear with the optical axis and is not collinear. The collecting lens of the multi-curvature compound curved surface according to claim 1, wherein the collecting lens (1) is located at an X-axis ridgeline between the first and second regional curved surfaces (121) and (122) (131) Or the X-axis ridgeline (132) between the third and fourth regional curved surfaces (123) and (124) has an angle (θ) with the X-axis, and the angle (θ) is between 0 and 30 degrees. A concentrating module comprising a collecting lens as described in claim 1 or 2 (1), and a point light source (2) corresponding to the light incident surface (11) side of the collecting lens (1). A luminaire comprising at least one concentrating module (B) according to claim 3, a substrate (3) for arranging the concentrating module (B), and a hood disposed on the concentrating module A light-transmitting cover (4) on the side of the light-emitting surface (12) of the group (B) and fixed to the substrate (3).