WO2011012066A1 - 利用抛物面镜的多光源汇聚系统 - Google Patents

利用抛物面镜的多光源汇聚系统 Download PDF

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Publication number
WO2011012066A1
WO2011012066A1 PCT/CN2010/075481 CN2010075481W WO2011012066A1 WO 2011012066 A1 WO2011012066 A1 WO 2011012066A1 CN 2010075481 W CN2010075481 W CN 2010075481W WO 2011012066 A1 WO2011012066 A1 WO 2011012066A1
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WIPO (PCT)
Prior art keywords
parabolic mirror
parabolic
mirror
light source
focus
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PCT/CN2010/075481
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English (en)
French (fr)
Inventor
黄建文
Original Assignee
Huang Chien-Wen
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Application filed by Huang Chien-Wen filed Critical Huang Chien-Wen
Publication of WO2011012066A1 publication Critical patent/WO2011012066A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms

Definitions

  • the invention relates to a light energy concentrating system, in particular to a light energy concentrating system for concentrating light emitted by a light source with a small density of light energy to form a light having a relatively high density of light energy by using a light reflecting law of a parabolic mirror.
  • Optical equipment technology field Optical equipment technology field.
  • the shape of the parabolic mirror can be divided into two types: a parabolic parabolic mirror, a circular parabolic parabolic mirror, and a columnar parabolic mirror.
  • the parabolic parabolic mirror is a parabola main axis as a central axis, and the parabola is rotated 360 degrees.
  • a bowl-shaped parabolic mirror the toroidal parabolic parabolic mirror is centered on a line parallel to the principal axis of the parabola, and the parabola is rotated 360 degrees around the center to form a circular parabolic mirror; a columnar parabolic mirror A reflecting surface is generated by a parabola extending along a straight line, the straight line being perpendicular to the major axis and the focal string of the parabola.
  • Parabolic mirrors have the following main features:
  • the incident light parallel to the main axis of the convex parabolic mirror is reflected by the convex parabolic mirror, and the reflected light will radiate away from the focal point along the normal of the reflected point.
  • the light incident at the focus of a convex parabolic mirror, after being reflected by the convex parabolic mirror, will exit in a direction parallel to the major axis of the convex parabolic mirror.
  • the main object of the present invention is to solve the problems in the prior art, and to provide a light energy of a light source having a relatively high density of light energy by concentrating light rays of a light source having a small density of light energy by using a light reflection law of a parabolic mirror. Convergence systems to achieve a variety of different practical applications.
  • a multi-light source convergence system using a parabolic mirror comprising: a plurality of light sources and a parabolic mirror; each of the light sources being parallel light sources; parallel rays emitted by the respective light sources are collectively directed toward the toss
  • the focus of the objective lens; the parabolic mirror can be a parabolic concave mirror or a parabolic convex mirror.
  • a convex lens is disposed at each of the light sources; a focus of the respective convex lenses coincides with a focus of the parabolic mirror.
  • the second parabolic mirror is a parabolic concave mirror; the reflecting surface of the second parabolic mirror is opposite to the reflecting surface of the parabolic mirror; the focal point of the reflecting surface of the second parabolic mirror coincides with the focal point of the reflecting surface of the parabolic mirror
  • the axis of the reflecting surface of the second parabolic mirror coincides with the axis of the reflecting surface of the parabolic mirror; the coincident focus and the axis are the common focus and the common axis, respectively; an aperture is formed at the apex of the second parabolic mirror; The center of the aperture is on the common axis.
  • a second convex lens and a third parabolic mirror are also included.
  • the second convex lens is disposed on an optical path of the reflected light of the parabolic mirror, the axis of which coincides with the axis of the parabolic mirror; the third parabolic mirror is disposed on the other side of the second convex lens with respect to the side of the parabolic mirror
  • the axis and the focus of the third parabolic mirror are both coincident with the second convex lens;
  • the third parabolic mirror may be a parabolic concave mirror or a parabolic convex mirror; and the center of the second convex lens is opened along the axis thereof a through hole; an aperture is formed at an apex of the parabolic mirror.
  • An angle steering device is also provided at the parabolic mirror; the angular steering device is driven to allow the parabolic mirror to be arbitrarily rotated about the focus.
  • An angle steering device is further disposed at the parabolic mirror, such that the parabolic mirror can rotate with the angle steering device; the respective light sources are mounted on a light source laying structure; the light source laying structure is fixedly connected with the angle steering device The light source routing structure is caused to rotate with the angle steering device.
  • An angle steering device is further disposed at the parabolic mirror; the parabolic mirror can be arbitrarily rotated by the angle steering device; the second parabolic mirror is mounted on the second parabolic mirror supporting device; A second parabolic mirror support device is fixedly coupled to the angle steering device for rotation with the angle steering device.
  • An angle steering device is further disposed at the parabolic mirror, such that the parabolic mirror can rotate with the angle steering device; the respective light sources are mounted on a light source laying structure; the light source laying structure is fixedly connected with the angle steering device Causing the light source routing structure to rotate with the angle steering device; the second parabolic mirror is mounted on the second parabolic mirror support device; the second parabolic mirror support device is fixedly coupled to the angle steering device to The angle is turned by the steering device.
  • a fine adjustment mechanism is further added to the second parabolic mirror; the position of the second parabolic mirror can be finely adjusted by the fine adjustment mechanism.
  • a cooling device is also provided at the focus or apex of each of the parabolic mirrors; by means of the cooling device, the parabolic mirror can be maintained within a set operating temperature.
  • the respective convex lenses are further provided with a focus fine adjustment device, by which the position of the convex lens can be adjusted, so that the focus of each convex lens is accurately coincident with the focus of the corresponding parabolic mirror.
  • the utility model has the beneficial effects that: by using the multi-light source convergence system using a parabolic mirror, it is possible to converge light rays with a small light energy density emitted by a plurality of light sources in different directions to form parallel light rays with a relatively high light energy density, and realize the structure. Simple and low cost.
  • FIG. 1 is a structural view of a first embodiment of a multi-source convergence system using a parabolic mirror
  • FIG. 2 is a structural view of a second embodiment of a multi-source convergence system using a parabolic mirror
  • FIG. 3 is a structural view of a third embodiment of a multi-source convergence system using a parabolic mirror
  • FIG. 4 is a structural view of a fourth embodiment of a multi-source convergence system using a parabolic mirror
  • Figure 5 is a structural view of a fifth embodiment of a multi-source convergence system using a parabolic mirror
  • FIG. 6 is a structural view of a sixth embodiment of a multi-source convergence system using a parabolic mirror
  • FIG. 7 is a structural view of a seventh embodiment of a multi-source convergence system using a parabolic mirror
  • Ci C2, C3 Cn convex lens
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the multi-source convergence system using a parabolic mirror includes a plurality of light sources L1, L2, L3, ... Ln and a parabolic mirror 1.
  • Each of the light sources is a parallel light source.
  • the parallel rays from the respective light sources are collectively directed toward the focus of the parabolic mirror 1.
  • the parabolic mirror 1 is mounted and fixed on a support device.
  • the parabolic mirror 1 can be either a parabolic concave mirror or a parabolic convex mirror.
  • the design point of the present invention is to use a mirror having a parabolic reflecting surface as a converging means for light energy.
  • a parabola is a type of conic curve that mathematically refers to a set of points on a plane that are equidistant from a fixed point F and a fixed line 1.
  • the fixed point F is the focus of the parabola
  • the fixed line 1 is the guide line of the parabola.
  • a line on the plane is perpendicular to the alignment 1 and passes through the focal point F, referred to as the axis. This axis is the axis of symmetry of the parabola. The intersection of the parabola and the axis is called the apex.
  • any light parallel to the parabolic axis will illuminate the concave reflecting surface of the mirror.
  • the reflected light converges on the focus of the parabola.
  • the convex surface of the mirror is a parabolic reflecting surface, any light parallel to the parabolic axis illuminates the convex reflecting surface of the mirror, and the reflected line of the light is dispersed along the reverse extension line of the parabolic focus. .
  • any light that is directed in the direction of the focal point of the convex reflecting surface will be reflected by the convex parabolic reflecting surface, and the reflected light will be parallel to the parabolic reflecting surface.
  • a multi-source convergence system using a parabolic mirror as shown in Fig. 1 is designed for the present invention.
  • the parabolic mirror Whether the parabolic mirror is a concave mirror or a convex mirror, the parabolic mirror reflects the light along its axis as long as the light from each source illuminates the focus of the parabolic mirror. In this way, it is possible to converge light of a plurality of light sources having a small density of light energy to form a light energy gathering purpose of light having a relatively high density of light energy.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 2 is a structural view of a second embodiment of a multi-source convergence system using a parabolic mirror of the present invention.
  • This second embodiment is based on the first embodiment, and further a convex lens Cl, C2, C3 ... Cn is added to each of the light sources.
  • the focal points of the respective convex lenses coincide with the focus of the parabolic mirror 1.
  • the present embodiment applies a convex lens at each light source and sets the focus of the convex lens at the focus of the parabolic mirror.
  • the parallel rays incident on the convex lens converge at the focus of the convex lens through the refractive action of the convex lens. This makes the angle of the incident parabolic mirror more ideal, and the light convergence effect of the system is naturally improved.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG 3 is a structural view of a third embodiment of a multi-source convergence system using a parabolic mirror according to the present invention.
  • This third embodiment is based on the first or second embodiment and further includes a second parabolic mirror 2.
  • the second parabolic mirror 2 is a parabolic concave mirror.
  • the reflecting surface of the second parabolic mirror 2 is disposed opposite to the reflecting surface of the parabolic mirror 1.
  • the focus of the reflecting surface of the second parabolic mirror 2 coincides with the focus of the reflecting surface of the parabolic mirror 1; the axis of the reflecting surface of the second parabolic mirror 2 coincides with the axis of the reflecting surface of the parabolic mirror 1, which coincides
  • the focus and axis are referred to as the common focus and the common axis, respectively.
  • An aperture 3 is formed at the apex of the second parabolic mirror 2, the center of which is on the common axis.
  • the multi-source convergence system using a parabolic mirror as shown in FIG.
  • the light emitted by the respective light sources is reflected by the parabolic mirror 1, it is irradiated toward the second parabolic mirror 2 in parallel with the direction of the common axis. Since the parabolic mirror 1 and the second parabolic mirror 2 are confocal and coaxial. Therefore, the parallel rays incident on the second parabolic mirror 2 parallel to the axial direction thereof are reflected by the second parabolic mirror 2, and are again concentrated toward the common focal direction incident parabolic mirror 1.
  • the light is reflected so as to reciprocate between the parabolic mirror 1 and the second parabolic mirror 2, and finally exits through the aperture 3 opened at the apex of the second parabolic mirror 2. It can be seen that the convergence system designed in this embodiment passes through this structure, thereby obtaining a stronger light energy convergence effect than the first embodiment.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 4 is a structural view of a fourth embodiment of a multi-source convergence system using a parabolic mirror of the present invention.
  • the fourth embodiment is a combination of the structures proposed in the above second and third embodiments.
  • This fourth embodiment adds a convex lens C1, C2, C3, ... Cn to each of the light sources.
  • the focal points of the respective convex lenses coincide with the focus of the parabolic mirror 1.
  • a second parabolic mirror 2 is provided.
  • the second parabolic mirror 2 is a parabolic concave mirror.
  • the reflecting surface of the second parabolic mirror 2 is disposed opposite to the reflecting surface of the parabolic mirror 1.
  • the focus of the reflecting surface of the second parabolic mirror 2 is opposite to the focus of the reflecting surface of the parabolic mirror 1
  • the axis of the reflecting surface of the second parabolic mirror 2 coincides with the axis of the reflecting surface of the parabolic mirror 1, and the coincident focus and axis are referred to as a common focus and a common axis, respectively.
  • An aperture 3 is formed at the apex of the second parabolic mirror 2, the center of the aperture 3 being on the common axis.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • Fig. 5 is a structural view showing a fifth embodiment of a multi-light source convergence system using a parabolic mirror according to the present invention. This fifth embodiment is based on the second embodiment and further includes a second convex lens 5 and a third parabolic mirror 6.
  • the second convex lens 5 is disposed on the optical path of the reflected light of the parabolic mirror 1, and its axis coincides with the axis of the parabolic mirror 1.
  • the third parabolic mirror 6 is disposed on the other side of the second convex lens 5 with respect to the side on which the parabolic mirror 1 is located, and its axis and focus coincide with the second convex lens 5.
  • the third parabolic mirror 6 can be either a parabolic concave mirror or a parabolic convex mirror.
  • a through hole 51 is formed in the center of the second convex lens 5 in the axial direction thereof.
  • a hole 11 is also formed at the apex of the parabolic mirror 1.
  • the multi-source convergence system using a parabolic mirror as shown in FIG.
  • the light emitted by the respective light sources is reflected by the parabolic mirror 1
  • parallel rays parallel to the axis thereof are incident on the second convex lens 5.
  • the parallel rays are concentrated toward the focus of the convex lens 5 by the refraction of the second convex lens 5.
  • the third parabolic mirror 6 coincides with the focus of the second convex lens 5. Therefore, according to the law of light reflection of the parabolic mirror, the third parabolic mirror 6 reflects the light directed at its focus in a direction parallel to its axis.
  • the reflected parallel rays are sequentially emitted through the through holes 51 opened by the second convex lens 5 and the apertures 11 opened at the apex of the parabolic mirror 1, thereby forming concentrated light.
  • Fig. 6 is a structural view showing a sixth embodiment of a multi-light source concentrating system using a parabolic mirror of the present invention.
  • This sixth embodiment is further provided with an angle steering device 4 based on the first embodiment.
  • the angle steering device 4 is disposed at the parabolic mirror 1 so that the parabolic mirror 1 can be arbitrarily rotated about the focus.
  • the light generated by the converging mirror 1 in this embodiment can be adjusted with the angle steering device 4 to adjust the illumination angle. This greatly facilitates the application of the light generated by the system. Since the specific implementation manner of the angle steering device is numerous, the specific implementation structure is not the focus of the patent protection, and therefore will not be described herein. And for those skilled in the art Any implementation of the foreseeable angle steering device is considered to be within the scope of the present invention.
  • the angle steering device 4 has another possible implementation. That is, the angle steering device 4 is disposed at the parabolic mirror 1 so that the parabolic mirror 1 rotates therewith. And each of the light sources is mounted on a light source routing structure. The light source routing structure 7 is fixedly coupled to the angle steering device 4 such that the light source routing structure is also rotated with the angle steering device 4.
  • the embodiment is modified for the structure of the sixth embodiment for the system structure proposed in the fourth embodiment.
  • the light sources L1, L2, . . . Ln, the convex lens C1, the C2. . . Cn, the first parabolic mirror 1 and the second parabolic mirror 2 are all fixedly connected to the light source laying structure 7 so that the whole
  • the system rotates with the angle steering device 4.
  • the angle steering device can have many embodiments, and the position of the installation can also be changed in many ways, and will not be described one by one.
  • the light energy convergence effect of the system depends on whether the positional relationship between the parabolic mirror 1 and the second parabolic mirror 2 is ideal. .
  • the positional relationship between the two is often difficult to guarantee.
  • this embodiment is further provided with a cooling device 9 at the apex of each parabolic mirror on the basis of the foregoing embodiments, by which the parabolic mirrors are maintained at the setting by the cooling device 9. Within the working temperature.
  • the cooling system 9 can also be placed at the focus of the parabolic mirror, and the effect of reducing the mirror temperature can also be achieved.
  • the working principle of the system can be known that the light energy convergence effect of the system depends on the focus of the convex lens. Whether the focus of the corresponding parabolic mirror coincides. Since the focal length of each convex lens is inevitably misaligned at the time of manufacture, it is necessary to provide a convex lens focal length fine adjustment device 10 for each convex lens. By this convex lens focal length fine adjustment device 10, the focus of each convex lens is more accurately coincident with the focus of the corresponding parabolic mirror. Such a convex lens focal length fine adjustment device 10 is often used for telescopes and microscopes, and since it is a prior art and has many structural forms, it will not be described one by one.
  • the present invention contemplates a system for achieving multi-source light energy convergence by utilizing the optical properties of the parabolic mirror itself. It is not difficult to see from the numerous embodiments of the present invention that such a system structure utilizing a parabolic mirror to achieve multi-source light energy convergence is rich in variations. Any non-innovative modifications made by those of ordinary skill in the art in view of such design are considered to be within the scope of the present invention.

Description

利用抛物面镜的多光源汇聚系统
技术领域
本发明涉及一种光能汇聚系统， 特别是一种利用抛物面镜的光线反射规律将 若干光能密度较小的光源所发出的光线汇聚形成光能密度较大的光线的光能汇 聚系统， 属于光学设备技术领域。
背景技术
抛物面反射镜的形状可以区分为回转抛物面反射镜、 环形回转抛物面反射镜 以及柱状抛物面反射镜两类， 其中， 回转抛物面反射镜是以一抛物线的主轴作为 中心轴线， 将该抛物线回转 360度而形成一碗状的抛物面反射镜； 环形回转抛物 面反射镜是以一平行于抛物线主轴的直线为中心， 将该抛物线绕该中心直线旋转 360度， 而形成一环形的抛物面反射镜； 柱状的抛物面反射镜是以一抛物线延着 一直线移动而生成的反射面， 该直线垂直于该抛物线的主轴和焦弦。
抛物面反射镜有以下几个主要的特性：
1、 对于凹面抛物面反射镜而言， 平行于抛物线主轴的入射光被凹面抛物面 反射镜反射之后， 反射光将汇聚在其焦点上。 相反的， 从一凹面抛物线反射镜的 焦点处发出的光线， 被该凹面抛物线反射镜的反射之后， 光线将沿着平行于该凹 面抛物面反射镜主轴的方向离开。
2、 对于凸面抛物面反射镜而言， 平行该于凸面抛物面反射镜主轴的入射光 被凸面抛物面反射镜反射之后， 反射光将沿着反射点的法线背离其焦点放射出 去。 相反的， 朝向一凸面抛物面反射镜的焦点处入射的光线， 被该凸面抛物面反 射镜的反射之后， 光线将沿着平行于该凸面抛物面反射镜主轴的方向离开。
利用上述的抛物线的几何特性， 以及按照抛物线形状制造的各种抛物面反射 镜的光线反射特性， 可以做成良好的汇聚光线的系统， 尤其是多光源汇聚系统。 发明内容
本发明的主要目的在于解决现有技术中存在的问题， 提供一种利用抛物面镜 的光线反射规律将若干光能密度较小的光源所发出的光线汇聚形成光能密度较 大的光线的光能汇聚系统， 从而实现多种不同的实际应用。
本发明的目的是通过下述技术方案予以实现的：
利用抛物面镜的多光源汇聚系统， 其特征在于： 包括若干光源和一个抛物面 镜； 所述各个光源均为平行光光源； 各个光源所发出的平行光线共同射向所述抛 物面镜的焦点处； 该抛物面镜可以是抛物线凹面反射镜或是抛物线凸面反射镜。 在所述每个光源处加设有一个凸透镜； 该各个凸透镜的焦点与所述抛物面镜 的焦点相重合。
还包括一个第二抛物面镜；
所述第二抛物面镜为一个抛物线凹面反射镜； 该第二抛物面镜的反射面与抛 物面镜的反射面相对设置； 该第二抛物面镜的反射面的焦点与抛物面镜的反射面 的焦点相重合； 该第二抛物面镜的反射面的轴线与抛物面镜的反射面的轴线相重 合； 所重合的焦点和轴线分别为公共焦点和公共轴线； 在该第二抛物面镜的顶点 处开设一孔隙； 该孔隙的中心在所述公共轴线上。
还包括有一个第二凸透镜和一个第三抛物面镜；
所述第二凸透镜设置在所述抛物面镜的反射光的光路上， 其轴线与抛物面镜 的轴线相重合； 该第三抛物面镜设置在第二凸透镜相对于所述抛物面镜所在侧的 另一侧； 该第三抛物面镜的轴线和焦点均与该第二凸透镜相重合； 该第三抛物面 镜可以是抛物线凹面反射镜或是抛物线凸面反射镜； 在该第二凸透镜的中心沿其 轴线方向开设有通孔； 在所述抛物面镜的顶点处开设有孔隙。
在所述抛物面镜处还设有一个角度转向装置； 通过该角度转向装置驱动使该 抛物面镜可以以焦点为中心任意转动。
在所述抛物面镜处还设有一个角度转向装置， 使得该抛物面镜可以随该角度 转向装置而转动； 所述各个光源安装在一个光源布设构造上； 所述光源布设构造 与角度转向装置固定连接， 使得该光源布设构造得以随角度转向装置而转动。
在所述抛物面镜处还设有一个角度转向装置； 通过该角度转向装置驱动使该 抛物面镜可以以焦点为中心任意转动； 所述第二抛物面镜装设在第二抛物面镜支 持装置上； 该第二抛物面镜支持装置与所述角度转向装置固定连接， 使其随角度 转向装置而转动。
在所述抛物面镜处还设有一个角度转向装置， 使得该抛物面镜可以随该角度 转向装置而转动； 所述各个光源安装在一个光源布设构造上； 所述光源布设构造 与角度转向装置固定连接， 使得该光源布设构造得以随角度转向装置而转动； 所 述第二抛物面镜装设在第二抛物面镜支持装置上； 该第二抛物面镜支持装置与所 述角度转向装置固定连接， 使其随角度转向装置而转动。
在所述第二抛物面镜处还加设了微调机构； 通过该微调机构能够对第二抛物 面镜的位置进行微调。 在所述各个抛物面镜的焦点或顶点处还设有一个冷却装置； 通过该冷却装置 使抛物面镜可以维持在设定的工作温度以内。
所述各个凸透镜处还设有焦距微调装置， 通过该焦距微调装置可以调节凸透 镜的位置， 使得各个凸透镜的焦点得以准确的与所对应的抛物面镜的焦点相重 合。
本发明的有益效果是： 通过该利用抛物面镜的多光源汇聚系统， 可以实现将 若干不同方向的光源所发出的光能密度较小的光线汇聚形成光能密度较大的平 行光线， 其实现结构简单、 成本低廉。
附图说明
图 1为利用抛物面镜的多光源汇聚系统第一实施例结构图；
图 2为利用抛物面镜的多光源汇聚系统第二实施例结构图；
图 3为利用抛物面镜的多光源汇聚系统第三实施例结构图；
图 4为利用抛物面镜的多光源汇聚系统第四实施例结构图；
图 5为利用抛物面镜的多光源汇聚系统第五实施例结构图；
图 6为利用抛物面镜的多光源汇聚系统第六实施例结构图；
图 7为利用抛物面镜的多光源汇聚系统第七实施例结构图；
附图标号：
Ll， L2, L3 Ln 光源；
ci， C2, C3 Cn 凸透镜；
1 抛物面镜；
2 第二抛物面镜;
3 孔隙；
4 角度转向装置;
5 第二凸透镜；
6 第三抛物面镜;
7 光源布设构造;
8 微调机构；
9 冷却装置；
10 凸透镜焦距调整装置；
11 抛物面镜 1的顶点处的孔隙；
51 第二凸透镜光轴中心处的通孔。 具体实施方式
有关于本发明的结构组成、 技术手段及功效达成方面， 配合图式再予举例进 一步具体说明于后：
实施例一：
图 1为本发明利用抛物面镜的多光源汇聚系统第一实施例结构图。如图所示， 该利用抛物面镜的多光源汇聚系统包括若干光源 Ll、 L2、 L3…… Ln和一个抛物 面镜 1。 所述各个光源均为平行光光源。 各个光源所发出的平行光线共同射向抛 物面镜 1的焦点处。 所述抛物面镜 1安装固定在一支持装置上。 该抛物面镜 1既 可以是抛物线凹面反射镜也可以是抛物线凸面反射镜。
本发明的设计要点在于采用具有抛物线形反射面的反射镜作为光能的汇聚 装置。 所谓抛物线是圆锥曲线的一种， 在数学上是指在一平面上， 到一个定点 F 和一条定直线 1距离相等的点的集合。 该定点 F即为抛物线的焦点， 该定直线 1 即为抛物线的准线。 在该平面上有一直线垂直于该准线 1并且通过该焦点 F, 称 为轴线。 该轴线是该抛物线的对称轴。 该抛物线与该轴线的交点称为顶点。
由抛物线的数学推导可知 （此处省略具体推导过程）， 如果反射镜的凹面为 抛物线形反射面， 则任何平行于该抛物线轴线的光线， 照射到该反射镜的凹反射 面时， 该光线的反射光线汇聚于抛物线的焦点上。 反之， 如果反射镜的凸面为抛 物线形反射面， 则任何平行于该抛物线轴线的光线， 照射到该反射镜的凸反射面 时， 该光线的反射线沿该抛物线焦点的反向延长线方向分散。 如果反射镜的凸面 为抛物线形反射面， 则任何对准该凸面反射面的焦点方向前进的光线， 将被该凸 面的抛物线形反射面反射， 反射后的光线将会平行于该抛物线形反射面的轴线。
基于以上抛物线的几何特性， 对于本发明所设计如图 1所示的利用抛物面镜 的多光源汇聚系统。 无论抛物面镜为凹面反射镜或是凸面反射镜， 只要各个光源 的光线照向所述抛物面镜的焦点处， 抛物面镜都会将该光线沿其轴线方向反射。 这样就可以实现将若干光能密度较小的光源所发出的光线汇聚形成光能密度较 大的光线的光能汇聚目的。
实施例二：
图 2为本发明利用抛物面镜的多光源汇聚系统第二实施例结构图。 该第二实 施例是在第一实施例的基础上， 进一步在每个光源处加设一个凸透镜 Cl、 C2、 C3…… Cn。 所述各个凸透镜的焦点与抛物面镜 1的焦点相重合。
这样设计主要是因为本发明所设计的多光源汇聚系统的光能汇聚效果有赖 于各个光源准确地入射。 光源入射的光线越接近抛物面镜 1的焦点， 光能汇聚的 效果就越好。 然而， 各个光源所发出的光线必然有一定的宽度， 这就决定了采用 光源直接照射抛物面镜的方式不可能获得最为理想的汇聚效果。 鉴于这一情况， 本实施例在各个光源处加设凸透镜， 并将凸透镜的焦点设置在抛物面镜的焦点 处。 根据凸透镜的光学特性， 入射凸透镜的平行光线经过凸透镜折射作用汇聚于 凸透镜的焦点处。 这样就可以使得入射抛物面镜的光线角度更为理想， 该系统的 光线汇聚效果也自然得到改善。
实施例三：
图 3为本发明利用抛物面镜的多光源汇聚系统第三实施例结构图。 该第三实 施例是在第一或第二实施例的基础上， 进一步包括一个第二抛物面镜 2。
如图所示， 该第二抛物面镜 2为一个抛物线凹面反射镜。 该第二抛物面镜 2 的反射面与抛物面镜 1的反射面相对设置。 该第二抛物面镜 2的反射面的焦点与 抛物面镜 1的反射面的焦点相重合； 该第二抛物面镜 2的反射面的轴线与抛物面 镜 1的反射面的轴线相重合， 其所重合的焦点和轴线分别称为公共焦点和公共轴 线。 在该第二抛物面镜 2的顶点处开设一孔隙 3， 该孔隙 3的中心在所述公共轴 线上。
基于以上抛物线的几何特性， 对于图 3所示的利用抛物面镜的多光源汇聚系 统。 当由各个光源所发出的光线经过抛物面镜 1反射后平行于所述公共轴线方向 照射向该第二抛物面镜 2。 由于该抛物面镜 1与第二抛物面镜 2是共焦点、 共轴 线的。 因此， 平行于其轴线方向入射第二抛物面镜 2的平行光线经过第二抛物面 镜 2反射， 再次聚向公共焦点方向入射抛物面镜 1。 就这样， 光线如此往复的在 抛物面镜 1与第二抛物面镜 2之间反射， 最终透过第二抛物面镜 2顶点处所开设 的孔隙 3射出。 可见， 本实施例所设计的汇聚系统即是通过这一结构， 从而获得 了较第一实施例更强的光能汇聚效果。
实施例四：
图 4为本发明利用抛物面镜的多光源汇聚系统第四实施例结构图。如图所示， 该第四实施例是结合了上述第二和第三实施例中所提出的结构组合而成。 该第四 实施例在每个光源处加设一个凸透镜 Cl、 C2、 C3…… Cn。所述各个凸透镜的焦点 与抛物面镜 1的焦点相重合。 并且， 还设有一个第二抛物面镜 2。 该第二抛物面 镜 2为一个抛物线凹面反射镜。 该第二抛物面镜 2的反射面与抛物面镜 1的反射 面相对设置。 该第二抛物面镜 2的反射面的焦点与抛物面镜 1的反射面的焦点相 重合； 该第二抛物面镜 2的反射面的轴线与抛物面镜 1的反射面的轴线相重合， 其所重合的焦点和轴线分别称为公共焦点和公共轴线。 在该第二抛物面镜 2的顶 点处开设一孔隙 3， 该孔隙 3的中心在所述公共轴线上。
本实施例的工作原理在前述第二和第三实施例中已做详细说明， 在此就不再 重复。
实施例五：
图 5为本发明利用抛物面镜的多光源汇聚系统第五实施例结构图。 该第五实 施例是在第二实施例的基础上， 进一步包括有一个第二凸透镜 5和一个第三抛物 面镜 6。
如图所示， 该第二凸透镜 5设置在所述抛物面镜 1的反射光的光路上， 其轴 线与抛物面镜 1的轴线相重合。 该第三抛物面镜 6设置在第二凸透镜 5相对于抛 物面镜 1所在侧的另一侧， 其轴线和焦点均与该第二凸透镜 5相重合。 该第三抛 物面镜 6既可以是抛物线凹面反射镜也可以是抛物线凸面反射镜。 在该第二凸透 镜 5的中心沿其轴线方向开设有通孔 51。在所述抛物面镜 1的顶点处也开设有孔 隙 11。
基于以上抛物线的几何特性， 对于图 5所示的利用抛物面镜的多光源汇聚系 统。 当由各个光源所发出的光线经过抛物面镜 1反射后平行于其轴线的平行光线 射向所述第二凸透镜 5。 该平行光线经过第二凸透镜 5的折射作用汇聚向该凸透 镜 5的焦点处。 由于该第三抛物面镜 6与第二凸透镜 5的焦点相重合。 因此， 根 据抛物面镜的光线反射规律， 该第三抛物面镜 6将射向其焦点处的光线， 以平行 于其轴线的方向反射。 该反射的平行光线依次通过所述第二凸透镜 5所开设的通 孔 51和抛物面镜 1顶点处所开设的孔隙 11射出， 从而形成汇聚光线。
实施例六：
图 6为本发明利用抛物面镜的多光源汇聚系统第六实施例结构图。 该第六实 施例是在第一实施例的基础上， 进一步设有一个角度转向装置 4。 如图所示， 该 角度转向装置 4设置于所述抛物面镜 1处， 使该抛物面镜 1可以以焦点为中心任 意转动。
通过增设该角度转向装置 4， 使得本实施例中由抛物面镜 1所汇聚产生的光 线可以随该角度转向装置 4而调整照射角度。 这样就大大方便了对本系统所汇聚 产生光线的应用。 由于， 这种角度转向装置的具体实施方式众多， 其具体的实现 结构并非本专利所要保护的重点， 因此在此就不再赘述。 而对本领域技术人员而 言， 任何可以预见的角度转向装置的实现结构， 均应视为在本发明的保护范围之 内。
如图 7所示， 当然， 该角度转向装置 4还有另外一种可能的实现方式。 即将 该角度转向装置 4设置于所述抛物面镜 1处， 使得抛物面镜 1随之转动。 而所述 各个光源安装在一个光源布设构造 Ί上。 所述光源布设构造 7与角度转向装置 4 固定连接， 使得光源布设构造 Ί也得以随角度转向装置 4而转动。
这样设计的好处在于角度转向装置 4不再要求必须以抛物面镜 1的焦点为中 心转动。 在条件允许的情况下， 这样的设计要求更容易实现。
实施例七：
如图 7所示， 参见实施例四和实施例六， 本实施例是针对第四实施例中所提 出的系统结构，对第六实施例结构进行改造。本实施例中，所述光源 Ll， L2. . . . Ln, 凸透镜 Cl， C2. . . . Cn,第一抛物面镜 1，第二抛物面镜 2，均与光源布设构造 7固定 连接， 使整个系统随角度转向装置 4而转动。 以现有技术而言， 该角度转向装置 可以有许多的实施方案， 装设的位置也可以有许多的变化， 不再一一叙述。
实施例八：
针对第三和第四实施例中所提出的多光源汇聚系统结构， 由其工作原理可 知， 该系统的光能汇聚效果有赖于其中抛物面镜 1与第二抛物面镜 2之间的位置 关系是否理想。但是，在实际应用中， 该两者之间的位置关系往往难以得到保证。 鉴于此， 如图 7所示， 在本实施例中我们在第二抛物面镜 2处加设了微调机构 8。 通过该微调机构 8我们能够对第二抛物面镜 2的位置进行微调， 使其与抛物面镜 1实现共轴线、 共焦点的理想位置关系。
当然， 作为微调机构 8的实现结构有很多， 由于均为现有技术在此就不再一 一赘述。
实施例九：
由于本专利所设计的多光源汇聚系统是通过抛物面镜的反射作用对光线进 行汇聚， 因此会在抛物面镜的顶点附近集中高强度的光能从而导致该部位温度过 高， 长期使用容易造成抛物面镜表面因高温而变形， 影响其聚光效果。 鉴于此， 如图 7所示， 本实施例在前述各实施例的基础上在所述各抛物面镜的顶点处还设 有一个冷却装置 9，通过该冷却装置 9使各抛物面镜维持在设定的工作温度以内。 不过， 当所述的抛物面镜尺寸较小的时候， 该冷却系统 9也可以设置在抛物面镜 的焦点处， 亦能达到降低镜面温度的效果。 实施例十：
如图 7所示， 针对第二、 三、 四、 五和第七实施例中所提出的多光源汇聚系 统结构， 由其工作原理可知， 该系统的光能汇聚效果有赖于其中凸透镜的焦点与 所对应的抛物面镜的焦点是否重合。 由于各个凸透镜的焦距在制造时难免会有误 差， 因此， 对于每一个凸透镜来说都有必要设置一个凸透镜焦距微调装置 10。通 过这种凸透镜焦距微调装置 10，使得各个凸透镜的焦点更加准确的与所对应的抛 物面镜的焦点重合。 这种凸透镜焦距微调装置 10 常用于望远镜和显微镜， 由于 是现有技术， 并且构造形式繁多， 在此不再一一叙述。
综上所述， 本发明设计了一种通过利用抛物面镜本身的光学特性实现多光源 光能汇聚的系统。 由本发明所列举的众多实施例不难看出， 这种利用抛物面镜实 现多光源光能汇聚的系统结构变化丰富。 本领域一般技术人员在这样的设计思想 下， 所做的任何不具有创造性的改造均应视为在本发明的保护范围之内。

Claims

权利要求
1、 利用抛物面镜的多光源汇聚系统， 其特征在于： 包括若干光源和一个抛 物面镜； 所述各个光源均为平行光光源； 各个光源所发出的平行光线共同射向所 述抛物面镜的焦点处； 该抛物面镜可以是抛物线凹面反射镜或是抛物线凸面反射 镜。
2、 如权利要求 1 所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述每个光源处加设有一个凸透镜； 该各个凸透镜的焦点与所述抛物面镜的焦点 相重合。
3、 如权利要求 1或 2所述的利用抛物面镜的多光源汇聚系统， 其特征在于: 还包括一个第二抛物面镜；
所述第二抛物面镜为一个抛物线凹面反射镜； 该第二抛物面镜的反射面与抛 物面镜的反射面相对设置； 该第二抛物面镜的反射面的焦点与抛物面镜的反射面 的焦点相重合； 该第二抛物面镜的反射面的轴线与抛物面镜的反射面的轴线相重 合； 所重合的焦点和轴线分别为公共焦点和公共轴线； 在该第二抛物面镜的顶点 处开设一孔隙； 该孔隙的中心在所述公共轴线上。
4、 如权利要求 1 所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 还 包括有一个第二凸透镜和一个第三抛物面镜；
所述第二凸透镜设置在所述抛物面镜的反射光的光路上， 其轴线与抛物面镜 的轴线相重合； 该第三抛物面镜设置在第二凸透镜相对于所述抛物面镜所在侧的 另一侧； 该第三抛物面镜的轴线和焦点均与该第二凸透镜相重合； 该第三抛物面 镜可以是抛物线凹面反射镜或是抛物线凸面反射镜； 在该第二凸透镜的中心沿其 轴线方向开设有通孔； 在所述抛物面镜的顶点处开设有孔隙。
5、 如权利要求 1 所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述抛物面镜处还设有一个角度转向装置； 通过该角度转向装置驱动使该抛物面 镜可以以焦点为中心任意转动。
6、 如权利要求 1 所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述抛物面镜处还设有一个角度转向装置， 使得该抛物面镜可以随该角度转向装 置而转动； 所述各个光源安装在一个光源布设构造上； 所述光源布设构造与角度 转向装置固定连接， 使得该光源布设构造得以随角度转向装置而转动。
7、 如权利要求 3所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述抛物面镜处还设有一个角度转向装置； 通过该角度转向装置驱动使该抛物面 镜可以以焦点为中心任意转动； 所述第二抛物面镜装设在第二抛物面镜支持装置 上； 该第二抛物面镜支持装置与所述角度转向装置固定连接， 使其随角度转向装 置而转动。
8、 如权利要求 3所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述抛物面镜处还设有一个角度转向装置， 使得该抛物面镜可以随该角度转向装 置而转动； 所述各个光源安装在一个光源布设构造上； 所述光源布设构造与角度 转向装置固定连接， 使得该光源布设构造得以随角度转向装置而转动； 所述第二 抛物面镜装设在第二抛物面镜支持装置上； 该第二抛物面镜支持装置与所述角度 转向装置固定连接， 使其随角度转向装置而转动。
9、 如权利要求 3所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述第二抛物面镜处还加设了微调机构； 通过该微调机构能够对第二抛物面镜的 位置进行微调。
10、 如权利要求 1、 2或 4所述的利用抛物面镜的多光源汇聚系统， 其特征 在于： 在所述各个抛物面镜的焦点或顶点处还设有一个冷却装置； 通过该冷却装 置使抛物面镜可以维持在设定的工作温度以内。
11、 如权利要求 3所述的利用抛物面镜的多光源汇聚系统， 其特征在于： 在 所述各个抛物面镜的焦点或顶点处还设有一个冷却装置； 通过该冷却装置使抛物 面镜可以维持在设定的工作温度以内。
12、如权利要求 2或 4所述的利用抛物面镜的多光源汇聚系统，其特征在于: 所述各个凸透镜处还设有焦距微调装置， 通过该焦距微调装置可以调节凸透镜的 位置， 使得各个凸透镜的焦点得以准确的与所对应的抛物面镜的焦点相重合。
PCT/CN2010/075481 2009-07-29 2010-07-27 利用抛物面镜的多光源汇聚系统 WO2011012066A1 (zh)

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CN101598295A (zh) * 2009-07-29 2009-12-09 黄建文 利用抛物面镜的多光源汇聚系统
CN102522683B (zh) * 2012-01-10 2013-10-30 武汉锐科光纤激光器技术有限责任公司 用于高功率光纤激光器的功率合束器
CN114779456A (zh) * 2022-05-26 2022-07-22 南开大学 基于抛物面镜的紧凑型入射角调整装置

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