CN102410490A - Lens and light source module - Google Patents

Lens and light source module Download PDF

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Publication number
CN102410490A
CN102410490A CN2010102890156A CN201010289015A CN102410490A CN 102410490 A CN102410490 A CN 102410490A CN 2010102890156 A CN2010102890156 A CN 2010102890156A CN 201010289015 A CN201010289015 A CN 201010289015A CN 102410490 A CN102410490 A CN 102410490A
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light
lens
light source
convex
emitting
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CN102410490B (en
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张秀萍
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Shenzhen Kai Management Consulting Co ltd
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Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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Abstract

The invention relates to a lens, which comprises a light incident surface and a first light emergent surface, wherein the first light emergent surface is a convex curved surface and is opposite to the light incident surface. The first light-emitting surface and the light-incident surface form a convex lens part. The lens further comprises a second light-emitting surface, the second light-emitting surface is opposite to the light-in surface, the second light-emitting surface is a rough surface, and the rough surface can enable the light rays emitted from the second light-emitting surface to have a large divergence angle. The invention also relates to a light source module with the lens.

Description

透镜及光源模组Lens and light source module

技术领域 technical field

本发明涉及光学领域，尤其涉及一种透镜及具有该透镜的光源模组。The invention relates to the field of optics, in particular to a lens and a light source module with the lens.

背景技术 Background technique

目前，大多光源，如发光二极管、放电灯及卤素灯等，的出射光线均具有较大的发散角，若要实现远距离照明，一般需要在这些光源前面设置一个聚焦透镜，减小其光线的发散角，使其光线集中于聚焦透镜的光轴附近出射。但在某些产品，如手电筒或车灯等中，既希望光源的一部分光线能够实现远处区域的照明，又希望光源的一部分光线能够实现近处地面区域的照明。At present, most light sources, such as light-emitting diodes, discharge lamps, and halogen lamps, etc., have a large divergence angle of outgoing light. To achieve long-distance lighting, it is generally necessary to install a focusing lens in front of these light sources to reduce the divergence of the light. Divergence angle, so that its light is concentrated near the optical axis of the focusing lens and exits. However, in some products, such as flashlights or car lights, it is hoped that part of the light from the light source can be used to illuminate distant areas, and part of the light from the light source can be used to illuminate nearby ground areas.

发明内容 Contents of the invention

有鉴于此，有必要提供一种既能够让光源的一部分光线实现远处区域的照明，又能够让光源的一部分光线实现近处区域的照明的透镜及采用该透镜的光源模组。In view of this, it is necessary to provide a lens that can not only allow part of the light from the light source to illuminate a distant area, but also enable a part of the light from the light source to illuminate a near area, and a light source module using the lens.

一种透镜，包括入光面与第一出光面，该第一出光面为凸曲面且与所述入光面相对。所述第一出光面与所述入光面组成凸透镜部。所述透镜进一步包括第二出光面，该第二出光面与所述入光面相对，该第二出光面为一个粗糙面，该粗糙面能够使从第二出光面出射的光线具有较大的发散角。A lens includes a light incident surface and a first light exit surface, the first light exit surface is a convex surface and is opposite to the light incident surface. The first light emitting surface and the light incident surface form a convex lens portion. The lens further includes a second light exit surface, the second light exit surface is opposite to the light incident surface, the second light exit surface is a rough surface, and the rough surface can make the light emitted from the second light exit surface have a larger divergence angle.

一种光源模组，包括光源及透镜。该透镜包括入光面与第一出光面，该第一出光面为凸曲面且与所述入光面相对。所述第一出光面与所述入光面组成凸透镜部。所述透镜进一步包括第二出光面，该第二出光面与所述入光面相对，该第二出光面为一个粗糙面，该粗糙面能够使从第二出光面出射的光线具有较大的发散角。所述光源设置在所述透镜的入光面一侧。A light source module includes a light source and a lens. The lens includes a light incident surface and a first light exit surface, the first light exit surface is a convex surface and is opposite to the light incident surface. The first light emitting surface and the light incident surface form a convex lens portion. The lens further includes a second light exit surface, the second light exit surface is opposite to the light incident surface, the second light exit surface is a rough surface, and the rough surface can make the light emitted from the second light exit surface have a larger divergence angle. The light source is arranged on one side of the light incident surface of the lens.

所述第一出光面与入光面组成一个凸透镜部，该凸透镜部能够将光源照射到其上的光线向靠近凸透镜部的光轴方向集中，以用来实现远处区域的照明；所述第二出光面能够将照射到其上的光线进行散射，以用来实现近处区域的照明。如此，所述透镜能够让光源的一部分光线实现远处区域的照明，又能够让光源的一部分光线实现近处区域的照明。The first light emitting surface and the light incident surface form a convex lens part, and the convex lens part can concentrate the light irradiated by the light source in the direction close to the optical axis of the convex lens part, so as to realize the illumination of the distant area; the first The second light-emitting surface can scatter the light irradiated on it, so as to realize the illumination of the nearby area. In this way, the lens can allow part of the light from the light source to illuminate a distant area, and allow a part of the light from the light source to illuminate a near area.

附图说明 Description of drawings

图1是本发明实施方式提供的光源模组的立体示意图。Fig. 1 is a schematic perspective view of a light source module provided by an embodiment of the present invention.

图2是图1中的光源模组沿图1中II-II方向的剖视图。FIG. 2 is a cross-sectional view of the light source module in FIG. 1 along the direction II-II in FIG. 1 .

主要元件符号说明Description of main component symbols

光源模组                        100Light source module 100

光源                            10Light source 10

透镜                            20Lens 20

入光面                          21Incident light side 21

第一出光面                      22The first light-emitting surface 22

第二出光面                      23Second light emitting surface 23

连接面                          24Connection surface 24

凸环                            25Raised Ring 25

具体实施方式 Detailed ways

以下将结合附图对本发明作进一步的详细说明。The present invention will be further described in detail below in conjunction with the accompanying drawings.

请参阅图1及图2，本发明实施方式提供的光源模组100包括光源10及透镜20。所述光源10可为发光二极管、放电灯及卤素灯等中的一种。Referring to FIG. 1 and FIG. 2 , the light source module 100 provided by the embodiment of the present invention includes a light source 10 and a lens 20 . The light source 10 can be one of light emitting diodes, discharge lamps and halogen lamps.

所述透镜20包括入光面21、与所述入光面21相对的第一出光面22和第二出光面23以及连接第一出光面22和第二出光面23的连接面24。The lens 20 includes a light incident surface 21 , a first light exit surface 22 and a second light exit surface 23 opposite to the light incident surface 21 , and a connection surface 24 connecting the first light exit surface 22 and the second light exit surface 23 .

所述入光面21可为凸面、凹面或平面。本实施方式中，所述入光面21为一个凸曲面。The light incident surface 21 can be convex, concave or flat. In this embodiment, the light incident surface 21 is a convex curved surface.

所述第一出光面22为一个凸曲面，其与所述入光面21组成一个凸透镜部。本实施方式中，所述凸透镜部具有一个光轴O，且具有一个位于所述入光面21一侧的焦点，所述光源10设置在该焦点处，从而使得经第一出光面22出射的光线大致为平行光，如此，可大大降低第一出光面22出射光线的发散角。The first light emitting surface 22 is a convex curved surface, which forms a convex lens portion with the light incident surface 21 . In this embodiment, the convex lens part has an optical axis O, and has a focal point located on one side of the light incident surface 21, and the light source 10 is arranged at the focal point, so that the light emitted through the first light exit surface 22 The light is substantially parallel light, so that the divergence angle of the light emitted from the first light emitting surface 22 can be greatly reduced.

所述第二出光面23位于所述第一出光面22一侧，其为一个粗糙面，该粗糙面能够使从第二出光面23出射的光线具有较大的发散角，这种具有较大的发散角的光线可用来实现近处区域的照明。另外，由于粗糙面出射光线角度杂乱，其出射光线亮度分布会更加均匀。本实施方式中，所述第二出光面23为一个锯齿面。所述第二出光面23在垂直于所述光轴O的平面上的投影的面积小于所述第一出光面22在垂直于所述光轴O的平面上的投影的面积。The second light-emitting surface 23 is located on the side of the first light-emitting surface 22, and it is a rough surface, which can make the light emitted from the second light-emitting surface 23 have a larger divergence angle, which has a larger Light rays with a divergence angle of 1 can be used to achieve illumination of nearby areas. In addition, due to the chaotic angles of the emitted light rays from the rough surface, the brightness distribution of the emitted light rays will be more uniform. In this embodiment, the second light emitting surface 23 is a sawtooth surface. The area of the projection of the second light-emitting surface 23 on the plane perpendicular to the optical axis O is smaller than the area of the projection of the first light-emitting surface 22 on the plane perpendicular to the optical axis O.

所述连接面24可将从透镜内照射到其上的光线向光轴O方向反射，以用于远处区域照明。所述连接面24反射从透镜内照射到其上的光线的能力可通过在其上涂镀反射膜达成，或利用全反射原理达成。本实施方式中，所述连接面24上涂镀有反射膜，该反射膜一方面可将从透镜内照射到其上的光线向光轴O方向反射，另一方面其可将第二出光面23一些向光轴O方向出射的光线反射到远离光轴方向用于近处区域的照明。所述连接面24与光轴O之间的夹角大小可用于控制近处区域的光强分布，本实施方式中，所述连接面24平行于所述光轴O。The connecting surface 24 can reflect the light irradiated thereon from the inside of the lens toward the optical axis O, so as to be used for illumination in a distant area. The ability of the connecting surface 24 to reflect the light irradiated thereon from the inside of the lens can be achieved by coating it with a reflective film, or by using the principle of total reflection. In this embodiment, the connecting surface 24 is coated with a reflective film. On the one hand, the reflective film can reflect the light irradiated on it from the lens in the direction of the optical axis O; 23 Some of the light emitted towards the direction of the optical axis O is reflected to a direction away from the optical axis for illumination of the near area. The included angle between the connecting surface 24 and the optical axis O can be used to control the light intensity distribution in the near region. In this embodiment, the connecting surface 24 is parallel to the optical axis O.

本实施方式中，所述透镜20外围还形成有一个凸环25，该凸环25可在透镜20安装固定时供透镜20的固持机构把持。另外，所述第一出光面22、第二出光面23以及连接面24在垂直于光轴O的平面上的投影组成一个圆。In this embodiment, a protruding ring 25 is formed on the periphery of the lens 20 , and the protruding ring 25 can be held by the holding mechanism of the lens 20 when the lens 20 is installed and fixed. In addition, projections of the first light-emitting surface 22 , the second light-emitting surface 23 and the connecting surface 24 on a plane perpendicular to the optical axis O form a circle.

本实施方式中，所述第一出光面22与入光面21组成一个凸透镜部，该凸透镜部能够将光源10照射到其上的光线向靠近光轴O方向集中，以用来实现远处区域的照明；所述第二出光面23能够将照射到其上的光线进行散射，以用来实现近处区域的照明。如此，所述透镜20能够让光源10的一部分光线实现远处区域的照明，又能够让光源10的一部分光线实现近处区域的照明。In this embodiment, the first light-emitting surface 22 and the light-incident surface 21 form a convex lens part, and the convex lens part can concentrate the light irradiated by the light source 10 on the direction close to the optical axis O, so as to realize the remote area illumination; the second light-emitting surface 23 can scatter the light irradiated on it, so as to realize the illumination of the nearby area. In this way, the lens 20 can allow a part of the light from the light source 10 to illuminate a distant area, and can also allow a part of the light from the light source 10 to illuminate a near area.

可以理解的是，对于本领域的普通技术人员来说，可以根据本发明的技术构思做出其它各种像应的改变与变形，而所有这些改变与变形都应属于本发明权利要求的保护范围。It can be understood that, for those skilled in the art, various other corresponding changes and deformations can be made according to the technical concept of the present invention, and all these changes and deformations should belong to the protection scope of the claims of the present invention .

Claims (10)

1.一种透镜，包括入光面与第一出光面，该第一出光面为凸曲面且与所述入光面相对，其特征在于：所述第一出光面与所述入光面组成凸透镜部，所述透镜进一步包括第二出光面，该第二出光面与所述入光面相对，该第二出光面为一个粗糙面，该粗糙面能够使从第二出光面出射的光线具有较大的发散角。1. A lens, comprising a light-incident surface and a first light-exit surface, the first light-exit surface is a convex surface and opposite to the light-incidence surface, characterized in that: the first light-exit surface and the light-incidence surface form Convex lens part, the lens further includes a second light exit surface, the second light exit surface is opposite to the light incident surface, the second light exit surface is a rough surface, and the rough surface can make the light emitted from the second light exit surface have Larger divergence angle. 2.如权利要求1所述的透镜，其特征在于：所述入光面为凸曲面。2. The lens according to claim 1, wherein the light incident surface is a convex surface. 3.如权利要求1所述的透镜，其特征在于：所述第二出光面为一个锯齿面。3. The lens according to claim 1, wherein the second light emitting surface is a serrated surface. 4.如权利要求1所述的透镜，其特征在于：所述透镜还包括一个位于第一出光面和第二出光面之间的连接面，该连接面能够反射照射到其上的光线。4. The lens according to claim 1, wherein the lens further comprises a connecting surface located between the first light-emitting surface and the second light-emitting surface, and the connecting surface can reflect light irradiated thereon. 5.如权利要求4所述的透镜，其特征在于：所述连接面与所述凸透镜部的光轴平行。5. The lens according to claim 4, wherein the connecting surface is parallel to the optical axis of the convex lens portion. 6.如权利要求4所述的透镜，其特征在于：所述连接面上涂镀有反射膜。6. The lens according to claim 4, characterized in that: the connecting surface is coated with a reflective film. 7.如权利要求1所述的透镜，其特征在于：所述透镜外围还形成有一个凸环。7. The lens according to claim 1, wherein a convex ring is formed on the periphery of the lens. 8.一种光源模组，包括光源及如权利要求1至7任一项所述的透镜，所述光源设置在所述透镜的入光面一侧。8. A light source module, comprising a light source and the lens according to any one of claims 1 to 7, wherein the light source is arranged on one side of the light incident surface of the lens. 9.如权利要求8所述的光源模组，其特征在于：所述光源设于所述透镜的凸透镜部的焦点处。9 . The light source module according to claim 8 , wherein the light source is disposed at the focus of the convex lens portion of the lens. 10.如权利要求8所述的光源模组，其特征在于：所述光源为发光二极管。10. The light source module according to claim 8, wherein the light source is a light emitting diode.
CN 201010289015 2010-09-21 2010-09-21 Lens and light source module Expired - Fee Related CN102410490B (en)

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CN102410490B CN102410490B (en) 2013-08-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378277A (en) * 2012-04-20 2013-10-30 展晶科技(深圳)有限公司 Lens and light-emitting diode packaging structure with same
CN103672728A (en) * 2012-09-13 2014-03-26 林万炯 Lens, LED module and lighting system using LED module
CN103851546A (en) * 2012-11-30 2014-06-11 深圳市海洋王照明工程有限公司 Light source structure and runway alarm light with same
CN104048193A (en) * 2013-03-14 2014-09-17 深圳市邦贝尔电子有限公司 LED (light emitting diode) lamp bead

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060083002A1 (en) * 2004-10-14 2006-04-20 Teruo Koike Lighting device
CN101105272A (en) * 2007-02-12 2008-01-16 吴娟 LED road lamp and its lens
CN101144863A (en) * 2007-10-16 2008-03-19 李旭亮 secondary optical lens
CN101440928A (en) * 2007-11-19 2009-05-27 胡晓兵 Free curved surface lens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060083002A1 (en) * 2004-10-14 2006-04-20 Teruo Koike Lighting device
CN101105272A (en) * 2007-02-12 2008-01-16 吴娟 LED road lamp and its lens
CN101144863A (en) * 2007-10-16 2008-03-19 李旭亮 secondary optical lens
CN101440928A (en) * 2007-11-19 2009-05-27 胡晓兵 Free curved surface lens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378277A (en) * 2012-04-20 2013-10-30 展晶科技(深圳)有限公司 Lens and light-emitting diode packaging structure with same
CN103378277B (en) * 2012-04-20 2015-11-18 展晶科技(深圳)有限公司 Lens and light emitting diode packaging structure with the lens
CN103672728A (en) * 2012-09-13 2014-03-26 林万炯 Lens, LED module and lighting system using LED module
CN103672728B (en) * 2012-09-13 2017-09-08 赛尔富电子有限公司 Lens, LED modules and the illuminator using the LED modules
CN103851546A (en) * 2012-11-30 2014-06-11 深圳市海洋王照明工程有限公司 Light source structure and runway alarm light with same
CN103851546B (en) * 2012-11-30 2017-07-14 深圳市海洋王照明工程有限公司 Light-source structure and the runway alert lamp containing the light-source structure
CN104048193A (en) * 2013-03-14 2014-09-17 深圳市邦贝尔电子有限公司 LED (light emitting diode) lamp bead

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