WO2017101304A1 - 可调圆形光斑手电 - Google Patents

可调圆形光斑手电 Download PDF

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Publication number
WO2017101304A1
WO2017101304A1 PCT/CN2016/088295 CN2016088295W WO2017101304A1 WO 2017101304 A1 WO2017101304 A1 WO 2017101304A1 CN 2016088295 W CN2016088295 W CN 2016088295W WO 2017101304 A1 WO2017101304 A1 WO 2017101304A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
group
convex lens
concentrating group
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PCT/CN2016/088295
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English (en)
French (fr)
Inventor
黄荣燊
Original Assignee
黄荣燊
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Application filed by 黄荣燊 filed Critical 黄荣燊
Priority to US15/742,374 priority Critical patent/US10488019B2/en
Publication of WO2017101304A1 publication Critical patent/WO2017101304A1/zh
Priority to US15/863,649 priority patent/US10502396B2/en

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F21V14/065—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors in portable lighting devices
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/006—Refractors for light sources applied to portable lighting devices
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G02B27/20—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective for imaging minute objects, e.g. light-pointer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/30—Collimators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/20—Combination of light sources of different form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Definitions

  • the utility model belongs to a flashlight, in particular to an adjustable circular spot flashlight.
  • flashlights such as glare flashlights, LEDs, and solar energy have appeared.
  • Some flashlights have a longer range and some have shorter range.
  • the flashlight with a slightly longer range is used, the light emitted is divergent, the light is not concentrated, the range is short, and the illuminated object cannot see the layering and the crystal transparency.
  • the object of the present invention is to provide an adjustable circular spot flashlight capable of solving at least one of the above problems.
  • an adjustable circular spot flashlight including an outer casing, a light source, and a control optical path.
  • the light source and the control optical path are both disposed in the outer casing, and the light source is in line with the center of the control optical path, and the optical path is controlled.
  • the first concentrating group and the second concentrating group are arranged, and the first concentrating group is located between the light source and the second concentrating group, and the adjustable distance between the first concentrating group and the second concentrating group is 55 to 65 mm.
  • the utility model has the beneficial effects that: the first concentrating group is provided, and the first concentrating group can condense the light emitted by the light source for the first time, and then diverge to the second concentrating group after the filter element, and the second concentrating group After the second concentrating, the group obtains the gathering spot to obtain the light with concentrated light and long range.
  • the projected object can reflect the layering and crystal-like transparency; the first concentrating group can be changed during use.
  • the spot size after the light source is emitted can be changed on the basis of ensuring that the emitted spot is a perfect circle, and the requirements for different occasions can be met.
  • the long-range range is realized, the transmitted light spot is a uniform true circle, the structure is simple, and the use is convenient.
  • the second concentrating group is movable to the side of the first concentrating group by 55 to 65 mm. Thereby, it is possible to satisfy the adjustable size of the perfect circular spot emitted by the light source.
  • the first concentrating group and the light source are capable of moving 55 to 65 mm toward the side of the second concentrating group. Thereby, it is possible to satisfy the adjustable size of the perfect circular spot emitted by the light source.
  • the distance between the first concentrating group and the second concentrating group is 60-160 mm. Thereby, the divergence and convergence of light between the two is facilitated. Thereby, the first concentrating group meeting can be facilitated. The concentrated light is concentrated and then diverged on the second concentrating group to meet the purpose of high concentration of light emitted by the second concentrating group.
  • the first concentrating group includes a first convex lens and a second convex lens, one side of the first convex lens and the second convex lens are both planar, and the other side is a convex surface, and the convex surface of the first convex lens and the second convex lens The distance between the convex surfaces is 0.4 to 0.6 mm.
  • the distance between the light source and the first concentrating group and the light source is 0-20 mm
  • the structure of the first convex lens and the second convex lens is the same
  • the convex surface of the first convex lens has a diameter of 9-25 mm.
  • the second concentrating group includes a plano-concave lens and a third convex lens, and the third convex lens and the third convex lens are objective lens glued members, and the third convex lens has a diameter of 28 to 100 mm.
  • the second concentrating group concentrates the light after passing through the first concentrating group, so that a perfect circular spot can be obtained better, and the light has a long range.
  • the focal length F of the objective lens is from 75.21 to 79.21 mm. Thereby, it can be ensured that the second concentrating group can effectively receive the light obtained at the first concentrating group.
  • the distance between the light source and the first concentrating group is 14 to 14.3 mm. Thereby, the light emitted by the light source can be made to achieve effective convergence in the first concentrating group.
  • FIG. 1 is a schematic view showing the working principle of the adjustable circular spot flashlight of the present invention
  • FIG. 2 is a schematic structural view of a use state of the adjustable circular spot flashlight of the present invention.
  • FIG. 3 is a schematic structural view of another use state of the adjustable circular spot flashlight of the present invention.
  • an adjustable circular spot flashlight comprising a casing 1, a light source 2 and a control light path 3, the light source 2 and the control light path 3 are both disposed in the casing 1, the light source 2 is an LED lamp bead, and the light source 2 and the center of the control optical path 3 are controlled.
  • the control optical path 3 includes a first concentrating group 31 and a second concentrating group 32 which are sequentially arranged, and the first concentrating group 31 is located between the light source 2 and the second concentrating group 32.
  • the distance between the light source 2 and the first concentrating group 31 is 14 to 14.3 mm, preferably 14.22 mm, and the light source 2 emits light and is concentrated by the first concentrating group 31.
  • the control light path 3 is placed and installed in the flashlight casing 1
  • the requirements of the foot use so that the real image of the flashlight LED is projected, and it is round in the range of 3 to 200 meters, and the edge of the perfect circle can be clearly seen, and the object projected can also clearly see the level. Feeling and transparency.
  • the dotted line in Fig. 1 indicates the direction in which the light is divergent.
  • the adjustable distance between the first concentrating group 31 and the second concentrating group 32 is 55-65 mm, preferably 60 mm, that is, in some embodiments (as shown in FIG. 2, the dotted line in the figure indicates the second concentrating)
  • the second concentrating group 32 can be moved to the side of the first concentrating group 31 by 55 to 65 mm, preferably 60 mm; thus, the formation of the light emitted through the second concentrating group 32 is ensured.
  • the spot is reduced when the second concentrating group 32 is close to the first concentrating group 31; conversely, when the two are far apart, the spot becomes large. Thereby, the spot size is adjustable.
  • the first concentrating group 31 and the light source 2 can be directed to the second concentrating group.
  • the 32 side moves 55 to 65 mm, preferably 60 mm. Therefore, on the basis of ensuring that the light emitted by the second concentrating group 32 forms a perfect circular spot, when the first concentrating group 31 and the second concentrating group 32 are close to each other, the spot is reduced; otherwise, the spot becomes large. Thereby, the spot size is adjustable.
  • the distance between the first concentrating group 31 and the second concentrating group 32 is 60-160 mm, preferably 100 mm, so that the first concentrating group 31 converges the light emitted by the light source 2, and then diverges to act on the second concentrating group. On the light group 32, it is ensured that the second concentrating group 32 can concentrate the light.
  • the first condensing group 31 includes a first convex lens 311 and a second convex lens 312.
  • One side of the first convex lens 311 and the second convex lens 312 are both planar, and the other side is a convex surface.
  • the convex surface of the first convex lens 311 and the second convex lens 312 The distance between the convex surfaces is 0.4 to 0.6 mm, preferably 0.5 mm.
  • the distance between the light source 2 and the first concentrating group 31 and the light source 2 is 0-20 mm, preferably 10 mm.
  • the light source 2 can also be in close contact with the first convex lens 311 during use, and the first convex lens 311 and the second convex lens 312 have the same structure.
  • the convex surface of the first convex lens 311 has a diameter of 9 to 25 mm, preferably 9 mm.
  • the plane side of the first convex lens 311 faces the light source 2 such that the light emitted from the light source 2 can directly act on the first convex lens 311, and the convex side of the first convex lens 311 converges the light; after being concentrated by the first convex lens 311
  • the light acts on the convex surface of the second convex lens 312, and the light is concentrated by the second convex lens 312. Therefore, the first concentrating group 31 is provided to collect the light emitted from the light source 2, and the obtained light has a large light intensity value and high brightness.
  • the second concentrating group 32 includes a planar concave lens 321 and a third convex lens 322.
  • the planar concave lens 321 and the third convex lens 322 are objective lens glued members, and the third convex lens 322 has a diameter of 28 to 100 mm, preferably 36 mm, wherein the objective lens is fused.
  • the focal length F is 75.21 to 79.21 mm, preferably 77.21 mm.
  • the second concentrating group 32 is mounted outside the convergence point of the second convex lens 312 such that the light condensed by the second convex lens 312 is diverged and then acts on the second concentrating group 32.
  • the second concentrating group 32 concentrates and illuminates the light by focusing, thereby obtaining a circular and uniform spot.
  • the light has a high degree of concentration and a long range.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)

Abstract

一种可调圆形光斑手电，包括外壳（1）、光源（2）和控制光路（3），光源（2）和控制光路（3）均设于外壳（1）内，光源（2）与控制光路（3）的中心在同一直线上，控制光路（3）包括依次排列的第一聚光组（31）和第二聚光组（32），第一聚光组（31）位于光源（2）与第二聚光组（32）之间。第一聚光组（31）可以对光源（2）发出的光进行初次聚光，再经滤光件后发散至第二聚光组（32），第二聚光组（32）进行第二次聚光后得到聚拢光斑发出，得到光线集中且射程远的光线，所投射物体则可以体现层次感和水晶般的通透感，在使用时无需进行变焦也能实现较远射程，透射光斑均匀且为正圆形，结构简单，使用方便。

Description

可调圆形光斑手电 技术领域
本实用新型属于一种手电筒，尤其是涉及一种可调圆形光斑手电。
背景技术
随着手电筒技术的快速发展，强光手电筒、LED、太阳能等各种各样的手电筒随之出现，有些手电的射程较远，有些射程较短。对于射程稍远的手电筒在使用时，发出的光线为发散型的，光线不集中，射程较短，所照物体无法看到层次感和水晶通透感。
实用新型内容
本实用新型的目的在于提供一种可调圆形光斑手电，能够解决上述问题中的至少一个。
根据本实用新型的一个方面，提供了一种可调圆形光斑手电，包括外壳、光源和控制光路，光源和控制光路均设于外壳内，光源与控制光路的中心在同一直线上，控制光路包括依次排列的第一聚光组和第二聚光组，第一聚光组位于光源与第二聚光组之间，第一聚光组和第二聚光组之间的可调距离为55～65mm。
本实用新型的有益效果是：设有第一聚光组，第一聚光组可以对光源发出的光进行初次聚光，再经滤光件后发散至第二聚光组，第二聚光组进行第二次聚光后得到聚拢光斑发出，得到光线集中且射程远的光线，所投射物体则可以体现层次感和水晶般的通透感；在使用过程中可以通过改变第一聚光组和第二聚光组之间的距离，且调节距离在55～65mm范围内时，可以在保证射出的光斑为正圆形的基础上，改变光源射出后的光斑大小，满足不同场合的使用要求，实现较远射程，透射光斑为均匀的正圆形，结构简单，使用方便。
在一些实施方式中，第二聚光组能够向第一聚光组一侧移动55～65mm。由此，可以满足光源射出的正圆形光斑可调大小。
在一些实施方式中，第一聚光组和光源能够向第二聚光组一侧移动55～65mm。由此，可以满足光源射出的正圆形光斑可调大小。
在一些实施方式中，第一聚光组与第二聚光组的距离为60～160mm。由此，便于两者之间的光线的发散和汇聚。由此，可以方便第一聚光组汇 聚的光汇聚后再发散的照在第二聚光组上，满足第二聚光组发出的光线汇聚程度高的目的。
在一些实施方式中，第一聚光组包括第一凸透镜和第二凸透镜，第一凸透镜和第二凸透镜的一侧均为平面，另一侧为凸面，第一凸透镜的凸面与第二凸透镜的凸面之间的距离为0.4～0.6mm。由此，光源发出的光经第一凸透镜汇聚后直接作用在第二凸透镜上，从而得到汇聚程度的光线，能够将光源发出的光有效汇聚，提高发射出来的光的强度和亮度。
在一些实施方式中，光源与第一聚光组与光源的距离为0～20mm，第一凸透镜与第二凸透镜的结构相同，第一凸透镜的凸面的直径为9～25mm。由此，保证了第一聚光组能够近距离的收集光源发出的光，并在第二凸透镜的汇聚作用后在外壳范围内能够再进行发散，便于第二聚光组对光线进行汇聚。
在一些实施方式中，第二聚光组包括平面凹透镜和第三凸透镜，平面凹透镜与第三凸透镜为物镜胶合件，第三凸透镜的直径为28～100mm。由此，第二聚光组将经第一聚光组后的光进行汇聚，能够更好的得到正圆形光斑，光线射程远。
在一些实施方式中，物镜胶合件的焦距F为75.21～79.21mm。由此，可以保证第二聚光组能够有效接收第一聚光组处得到的光。
在一些实施方式中，光源与第一聚光组之间的距离为14～14.3mm。从而，使得光源发出的光能够在第一聚光组实现有效汇聚。
附图说明
图1是本实用新型的可调圆形光斑手电的工作原理示意图；
图2是本实用新型的可调圆形光斑手电中一种使用状态的结构示意图；
图3是本实用新型的可调圆形光斑手电中另一种使用状态的结构示意图。
具体实施方式
下面结合附图对本实用新型作进一步详细的说明。
参照图1：可调圆形光斑手电，包括外壳1、光源2和控制光路3，光源2和控制光路3均设于外壳1内，光源2为LED灯珠，光源2与控制光路3的中心在同一直线上，控制光路3包括依次排列的第一聚光组31和第二聚光组32，第一聚光组31位于光源2与第二聚光组32之间。光源2与第一聚光组31之间的距离为14～14.3mm，优选为14.22mm，光源2发出光线后经第一聚光组31进行汇聚。控制光路3放置安装在手电外壳1内，满 足使用要求，使得电筒LED实像投射出来，并在3～200米的距离范围内均呈正圆形，而且可以清晰地看到正圆形的边缘，所投射到的物体也可以清晰地看出层次感和通透感。图1中的虚线表示光线的发散方向。
其中，第一聚光组31和第二聚光组32之间的可调距离为55～65mm，优选为60mm，即在一些实施方式中(如图2所示，图中虚线表示第二聚光组32移动后的位置)，第二聚光组32能够向第一聚光组31一侧移动55～65mm，优选为60mm；从而，使得在保证经第二聚光组32射出的光线形成正圆形光斑的基础上，第二聚光组32靠近第一聚光组31时光斑缩小；反之，两者远离时，光斑变大。由此，实现了光斑大小可调。
或者，在另一些实施方式中(如图3所示，图中虚线表示第一聚光组31和光源2移动后的位置)，第一聚光组31和光源2能够向第二聚光组32一侧移动55～65mm，优选为60mm。从而，使得在保证经第二聚光组32射出的光线形成正圆形光斑的基础上，第一聚光组31与第二聚光组32靠近时，光斑缩小；反之，光斑变大。由此，实现了光斑大小可调。
第一聚光组31与第二聚光组32的距离为60～160mm，优选为100mm，使得第一聚光组31对光源2发出的光进行汇聚后，再经发散后作用在第二聚光组32上，保证第二聚光组32能够对光线进行汇聚。
第一聚光组31包括第一凸透镜311和第二凸透镜312，第一凸透镜311和第二凸透镜312的一侧均为平面，另一侧为凸面，第一凸透镜311的凸面与第二凸透镜312的凸面之间的距离为0.4～0.6mm，优选为0.5mm。
光源2与第一聚光组31与光源2的距离为0～20mm，优选为10mm，在使用过程中光源2也可以紧贴第一凸透镜311，第一凸透镜311与第二凸透镜312的结构相同，第一凸透镜311的凸面的直径为9～25mm，优选为9mm。
第一凸透镜311的平面一侧正对光源2，使得光源2发出的光能够直接作用在第一凸透镜311上，第一凸透镜311的凸面一侧对光线进行汇聚；经过第一凸透镜311汇聚后的光线作用在第二凸透镜312的凸面上，光线经第二凸透镜312后进行汇聚。从而，设有第一聚光组31能够将光源2发出的光进行收集，得到的光线光强值较大，亮度高。
第二聚光组32包括平面凹透镜321和第三凸透镜322，平面凹透镜321与第三凸透镜322为物镜胶合件，第三凸透镜322的直径为28～100mm，优选为36mm，其中，物镜胶合件的焦距F为75.21～79.21mm，优选为77.21mm。第二聚光组32安装在第二凸透镜312的汇聚点之外，使得经第二凸透镜312汇聚后的光线再发散后作用在第二聚光组32上。第二聚光组32通过汇聚作用，对光线进行汇聚后射出，从而得到呈圆形且均匀的光斑， 光线聚集度高，射程远。
以上所述的仅是本实用新型的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。

Claims (9)

  1. 可调圆形光斑手电，其特征在于，包括外壳(1)、光源(2)和控制光路(3)，所述光源(2)和控制光路(3)均设于外壳(1)内，所述光源(2)与控制光路(3)的中心在同一直线上，所述控制光路(3)包括依次排列的第一聚光组(31)和第二聚光组(32)，所述第一聚光组(31)位于光源(2)与第二聚光组(32)之间，所述第一聚光组(31)和第二聚光组(32)之间的可调距离为55～65mm。
  2. 根据权利要求1所述的可调圆形光斑手电，其特征在于，所述第二聚光组(32)能够向第一聚光组(31)一侧移动55～65mm。
  3. 根据权利要求1所述的可调圆形光斑手电，其特征在于，所述第一聚光组(31)和光源(2)能够向第二聚光组(32)一侧移动55～65mm。
  4. 根据权利要求2或3所述的可调圆形光斑手电，其特征在于，所述第一聚光组(31)与第二聚光组(32)的距离为60～160mm。
  5. 根据权利要求4所述的可调圆形光斑手电，其特征在于，所述第一聚光组(31)包括第一凸透镜(311)和第二凸透镜(312)，所述第一凸透镜(311)和第二凸透镜(312)的一侧均为平面，另一侧为凸面，所述第一凸透镜(311)的凸面与第二凸透镜(312)的凸面之间的距离为0.4～0.6mm。
  6. 根据权利要求5所述的可调圆形光斑手电，其特征在于，所述光源(2)与第一聚光组(31)与光源(2)的距离为0～20mm，所述第一凸透镜(311)与第二凸透镜(312)的结构相同，所述第一凸透镜(311)的凸面的直径为9～25mm。
  7. 根据权利要求6所述的可调圆形光斑手电，其特征在于，所述第二聚光组(32)包括平面凹透镜(321)和第三凸透镜(322)，所述平面凹透镜(321)与第三凸透镜(322)为物镜胶合件，所述第三凸透镜(322)的直径为28～100mm。
  8. 根据权利要求7所述的可调圆形光斑手电，其特征在于，所述物镜胶合件的焦距F为75.21～79.21mm。
  9. 根据权利要求7所述的可调圆形光斑手电，其特征在于，所述光源(2)与第一聚光组(31)之间的距离为14～14.3mm。
PCT/CN2016/088295 2015-12-16 2016-07-04 可调圆形光斑手电 WO2017101304A1 (zh)

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