WO2013044799A1 - 一种摄影灯变光装置 - Google Patents

一种摄影灯变光装置 Download PDF

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Publication number
WO2013044799A1
WO2013044799A1 PCT/CN2012/082012 CN2012082012W WO2013044799A1 WO 2013044799 A1 WO2013044799 A1 WO 2013044799A1 CN 2012082012 W CN2012082012 W CN 2012082012W WO 2013044799 A1 WO2013044799 A1 WO 2013044799A1
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WO
WIPO (PCT)
Prior art keywords
link
folding
photographic light
dimming device
support rods
Prior art date
Application number
PCT/CN2012/082012
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English (en)
French (fr)
Inventor
何济仪
Original Assignee
深圳市元科摄影器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 深圳市元科摄影器材有限公司 filed Critical 深圳市元科摄影器材有限公司
Priority to CN201280046026.9A priority Critical patent/CN103959160A/zh
Publication of WO2013044799A1 publication Critical patent/WO2013044799A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories

Definitions

  • the present invention relates to a photographic light dimming device for photography.
  • the photographic light dimming device is a commonly used dimming tool for photography, mainly including a soft light tool and a reflective tool.
  • the soft light tool has the function of expanding the light source area and creating soft light
  • the reflective tool Can create a large light source close to the subject, which can create a very soft directional light .
  • the existing photographic light dimming device generally includes a base for fixing the support rod, a plurality of support rods are disposed on the base, and a reflector supported by the plurality of support rods and open at one end, in the reflector Soft light facing the bottom light source at the opening Cloth.
  • the volume is large and the carrying is very inconvenient.
  • the industry adopts a plurality of support rods, a base, a reflector, and a soft cloth to be detachable parts, and the components are installed together when used, and each unit is used when not in use.
  • the photographic light dimming device can be reduced in size and convenient to carry.
  • the technical problem to be solved by the present invention is to provide a photographic light dimming device which is convenient for reducing the volume.
  • a photographic light dimming device comprises a base, a plurality of support rods and a reflector, a plurality of support rods are connected on the base, the number of support rods is more than three, the support rod is covered with a reflector, and between the two support rods
  • the reflector has a trapezoidal shape when being opened, and the trapezoidal upper bottom is close to the base, wherein the plurality of support rods are movably connected to the base, and the adjacent two support rods are folded
  • the connecting rod has two ends connected to the two supporting rods through the rotating shaft, and the folding or opening direction of the folding link is always in the same plane with the two supporting rods connected thereto.
  • the trapezoid is that the upper base is shorter than the lower base.
  • the photographic light dimming device further comprises a soft cloth for covering the wide mouth of the photographic light dimming device, and the light is dimmed from the photographic light.
  • the device emits a soft cloth and emits it.
  • the folding link has a first connecting rod and a second connecting rod, and the first connecting rod is connected to one of the support rods of the two adjacent support rods through one end of the rotating shaft.
  • the other end of the first link is hinged to one end of the second link, and the other end of the second link is connected to the other support bar of the two adjacent support bars via a rotating shaft.
  • the folding link has a first connecting rod and a second connecting rod of equal length, and the first connecting rod is connected to the rotating shaft at one end of the adjacent one of the two supporting rods.
  • the other end of the first link is hinged to one end of the second link, and the other end of the second link is connected to the other support rod of the two adjacent support rods via a rotating shaft.
  • the protrusion may be located on the connecting shaft or on the connecting rod.
  • the protrusion is a sheet-like semicircular or cylindrical shape.
  • the protrusion is cylindrical and located outside the junction of the first link and the second link.
  • the cylindrical protrusion may be located at a rotational axis of the junction of the first link and the second link, and is hollow, the fixed part of the shaft is passed through the hollow cylindrical interior and then mounted and fixed.
  • the folding link can be folded at an angle of 0 to 180 degrees, and the folding angle of the folding link is opposite to the base connecting direction.
  • the position of the folding link connected to the support rod is from 30% to 70% of the support rod from the base end to the support rod.
  • the position of the folding link connected to the support rod is 45% of the support rod from the base end to the support rod.
  • the utility model has the beneficial effects that a plurality of support rods are movably connected to the base, and the plurality of support rods are provided with a folding connecting rod between the adjacent two support rods, and after the folding connecting rod is folded, the plurality of supporting rods can be
  • the reflectors supported by the plurality of support rods are gathered together, and the volume of the photolight dimming device is greatly reduced, which is convenient to carry.
  • the folding connecting rod is straightened to support the plurality of support rods and supported by the plurality of support rods.
  • the reflector is opened and easy to operate.
  • FIG. 1 is a schematic view showing the first state change structure of the photographic light dimming device of the present invention
  • FIG. 2 is a schematic view showing the structure change of the second state of the photographic light dimming device of the present invention
  • FIG. 3 is a schematic structural view showing a third state change of the illuminating device for a photographic light of the present invention.
  • FIG. 4 is a schematic view showing the fourth state change structure of the photographic light dimming device of the present invention.
  • FIG. 5 is a schematic view showing the first state change structure of the reflector and the soft cloth according to the present invention.
  • FIG. 6 is a schematic structural view showing a second state change of the reflector and the soft cloth according to the present invention.
  • FIG. 7 is a schematic view showing a third state change structure of the reflector and the soft cloth according to the present invention.
  • Figure 8 is an enlarged schematic view of the structure of Figure 5
  • Figure 9 is an enlarged schematic view of the structure of B of Figure 5
  • Figure 10 is an enlarged schematic view of the structure of Figure C;
  • Figure 11 is a state diagram and structure diagram during use of the present invention
  • FIG. 12 is a schematic view showing an open structure of a reflector and a soft cloth and having protrusions according to the present invention
  • Figure 13 is a half-folded structure diagram of the present invention with the reflector and the soft cloth removed and provided with protrusions
  • Figure 14 is an enlarged schematic view showing the structure of D in Figure 12;
  • Figure 15 is an enlarged schematic view showing the structure of E in Figure 13
  • a photographic light dimming device includes a base 1, a plurality of support rods 2 and a reflector 3, and a plurality of support rods 2 are connected to the base 1, and the number of support rods 2 is three or more.
  • the support rod 2 is covered with the reflector 3, and the reflector 3 between the two support rods 2 is in the shape of a ladder when the reflector 3 is opened, and the upper base of the trapezoid is close to the end of the base 1, and the plurality of support rods 2 are movable.
  • a folding link is disposed between the two adjacent support rods 2, and the two ends of the folding link are respectively connected to the two support rods 2 through the rotating shaft, and the folding links are folded or
  • the two support rods 2 to which the opening direction is always connected are in the same plane.
  • the folding links in Fig. 2 are composed of two parts. In practical applications, there may be more than two parts, such as 3 or 4 parts, as long as the folding direction is in the same plane as the support rods at both ends.
  • the folding or opening direction of the folding connecting rod is always in the same plane with the two supporting rods 2 connected thereto, so that the folding connecting rod can be folded and gathered together with the supporting rod, which reduces the volume, takes up less space, and is convenient to carry.
  • the rotating shaft described in the present invention can only be rotated in one plane.
  • the connecting structure in the folding link and the rotation of the connecting structure between the folding link and the supporting rod are both It is in a plane.
  • a photographic light dimming device as shown in FIGS. 1 to 10 includes a base 1 for connecting a support rod, a plurality of support rods 2, and a reflector supported by a plurality of support rods 2 and having an opening at one end 3. At the opening 31 of the reflector 3, a soft cloth 4 facing the light source is provided.
  • the light source is not shown in the drawing.
  • the light source is an illumination source or a flash source, and is generally disposed at the bottom of the reflector 3.
  • the plurality of support rods 2 of the present invention are movably connected to the base 1.
  • the plurality of support rods 2 are provided with folding links between the two adjacent support rods, and the folding or opening direction of the folding links is always The two supporting rods 2 connected are in the same plane.
  • the plurality of support rods 2 can be movably connected to the base 1 by a rotating shaft, so that the plurality of support rods 2 can be moved on the base 1 by using the rotating shaft.
  • the plurality of support rods 2 are preferably four, eight or sixteen, and four support rods or eight support rods are preferred. In the present embodiment, four support rods are used.
  • the inner surface of the reflector 3 is a reflective surface, and the reflector 3 is generally a reflective cloth cover.
  • the reflector 3 supported by the plurality of support rods 2 has a polygonal pyramid shape, and the reflector 3 supported by the four support rods has a quadrangular pyramid shape, and the reflector 3 supported by the eight support rods has an octagonal pyramid shape.
  • the folding link of the present invention has a first link 51 and a second link 52.
  • One end of the first link 51 is movably connected to a support rod 2 of two adjacent support rods.
  • Upper end of the first link 51 is hinged to one end of the second link 52, and the other end of the second link 52 is movably coupled to the other support rod 2 of the adjacent two support bars.
  • the first link 51 and the second link 52 are movably coupled to the support rod 2 by a rotating shaft, so that the first link 51 and the second link 52 can be moved on the support rod 2 by the rotating shaft.
  • FIGS. 9 and 10 the other end of the first link 51 and the one end of the second link 52 are hinged by a hinge.
  • 9 is a schematic view showing a state in which the first link 51 and the second link 52 are straightened at both ends of the hinge
  • FIG. 10 shows a state in which the first link 51 and the second link 52 are half-folded at both ends of the hinge.
  • the folding link is fully folded, and the four support bars 2 and the reflector 3 supported by the four support bars 2 can be gathered together, and the volume of the photolight dimming device is greatly reduced. ,easy to carry.
  • 3 and 5 are schematic views showing the straight state of the folding link, and the four support bars 2 and the reflector 3 are fully extended.
  • FIG. 4 is a schematic view showing the structure of the soft cloth 4 facing the light source at the opening 31 of the reflector 3, and the soft cloth 4 shown in FIG. 4 is completely covered at the opening 31.
  • the downward folding mode is adopted, and the upward folding mode can also be adopted. If the upward folding mode is adopted, the folding link should be disposed on the support rod as much as possible. Near the middle or near the base end.
  • FIG. 11 shows a state diagram during use of the present invention, a collapsed state S1, a state S2 after the binding of the strap, a state S3 during the opening process, a fully extended state S4, and a state in which the soft cloth is covered at the opening.
  • S5 the state S6 covering the soft cloth
  • the collapsed state is the reverse of the open state.
  • the structural diagram S7 of the photographic light dimming device it can be seen that the position of the folding link connected to the support rod is 30% to 70% of the support rod from the base end to the support rod, such an arrangement is advantageous for the distance from the base end.
  • the end of the support rod is curved, and the end of the curved rod covers the reflector to facilitate the accumulation of light.
  • the position of the folding rod connected to the support rod is 45% of the support rod from the base end to the support rod. A better installation location is most conducive to the accumulation of light.
  • the folding link is folded upward, and it can be seen that the folding link is folded at an angle of 0 to 180 degrees, and the folding angle of the folding link is opposite to the direction of the base.
  • FIG. 12 is a structural schematic view showing a distracted state
  • FIG. 13 is a structural schematic view showing a half-open state.
  • the first link 51 and the first The rotating shaft connected to the two links 52 FIG. 14 is an enlarged view of the position D in FIG. 12, from which we can see that there is a protrusion 53 near the center of the rotating shaft, and the protrusion 53 is a sheet-like semicircle;
  • 15 is an enlarged view of E at Fig. 13, from which we can also see that there is a projection 53 near the center of the rotation shaft, and the projection 53 is a sheet-like semicircle.
  • the protrusions 53 in the vicinity of the rotating shaft contribute to the external force acting on the folding rod when being stowed or distracted. It is known from the mechanics knowledge that the action is most labor-saving at the intermediate position of the two folding rods, and the protrusion 53 is a sheet-like semicircle. Shape helps fingers, especially the thumb and forefinger to force on it.
  • the protrusions 53 may be one or two in the vicinity of the connecting shaft. In addition to the labor saving, because of the protrusion, it can be applied to the protrusion by hand when stowed and opened, and if the force on the protrusion handle is not used in the middle position, the middle position is easy to grip the hand.

Abstract

一种摄影灯变光装置，包括底座（1）、多根支撑杆（2）和反光罩（3），底座（1）上面连接三根以上的支撑杆（2），支撑杆（2）上面覆盖着反光罩（3），两根支撑杆（2）之间的反光罩（3）撑开时为梯形状，且该梯形的上底为靠近底座（1）端，支撑杆（2）活动连接在底座（1）上，相邻的两根支撑杆（2）之间均设有折叠连杆，该折叠连杆两端分别通过转轴与两根支撑杆（2）相连，并且折叠连杆的折叠或打开方向始终与其连接的两根支撑杆（2）在同一平面内。

Description

一种摄影灯变光装置 技术领域
本发明涉及一种摄影用的摄影灯变光装置。
背景技术
摄影灯变光装置为摄影常用的变光工具，主要包括柔光工具和反光工具，柔光工具具有扩大光源面积、营造柔和光线的功能，反光工具 可以创造出一个靠近拍摄对象的大型光源，可以营造出很柔的方向性光线 。现有的摄影灯变光装置其柔光工具一般包括一个用于固定支撑杆的底座，多根支撑杆设于底座上，以及由多根支撑杆支撑且在一端开口的反光罩，在反光罩开口处设有正对底部光源的柔光 布。上述结构的摄影灯变光装置其多根支撑杆将反光罩支撑后，体积大，携带很不方便。为了解决摄影灯变光装置携带方便的技术问题，业界采用了将多根支撑杆、底座、反光罩、柔光布设置成可拆卸部件，使用时将各个部件安装在一起，不使用时将各个部件拆卸下来，可将摄影灯变光装置体积缩小，方便携带。
技术问题
但是因摄影灯变光装置安装、拆卸的操作难度大，导致安装、拆卸的过程耗时很长，操作复杂。
技术解决方案
针对现有技术存在的技术问题，本发明要解决的技术问题是提供一种方便将体积缩小的摄影灯变光装置。
为了解决上述技术问题，本发明由以下的技术方案来实现： 一种摄影灯变光装置，包括底座、多根支撑杆和反光罩，底座上面连接多根支撑杆，支撑杆的数目为3根以上，支撑杆上面覆盖着反光罩，两根支撑杆之间的反光罩撑开时为梯形状，且该梯形的上底为靠近底座，其特征在于：所述的多根支撑杆活动连接在底座上，相邻的两根支撑杆之间均设有折叠连杆，该折叠连杆两端分别通过转轴与两根支撑杆相连，并且所述的折叠连杆的折叠或打开方向始终与其连接的两根支撑杆处在同一平面内。此处的梯形为上底比下底短。
作为上述摄影灯变光装置的进一步改进，所述的摄影灯变光装置还包括一柔光布，该柔光布用于遮盖在摄影灯变光装置的广口处，光线从摄影灯变光装置内发出经过柔光布后射出。
作为上述摄影灯变光装置的进一步改进，所述的折叠连杆具有第一连杆和第二连杆，第一连杆一端通转轴连接在相邻的两根支撑杆的一根支撑杆上，第一连杆的另一端和第二连杆的一端铰接，第二连杆的另一端通过转轴连接在相邻的两根支撑杆的另一根支撑杆上。
作为上述摄影灯变光装置的进一步改进，所述的折叠连杆具有等长的第一连杆和第二连杆，第一连杆一端通转轴连接在相邻的两根支撑杆的一根支撑杆上，第一连杆的另一端和第二连杆的一端铰接，第二连杆的另一端通过转轴连接在相邻的两根支撑杆的另一根支撑杆上。
作为上述摄影灯变光装置的进一步改进，所述的第一连杆和第二连杆的连接处附近有一突起，该突起在折叠或打开折叠连杆时方便外力作用在上面。该突起可以位于连接转轴上，也可以位于连接杆上。
作为上述摄影灯变光装置的进一步改进，所述的突起为片状半圆形或圆柱形。
作为上述摄影灯变光装置的进一步改进，所述的突起为圆柱形且位于第一连杆和第二连杆的连接处外侧。该圆柱形突起可以位于第一连杆和第二连杆连接处的转动轴心处，并且中空的，该轴心的固定部件是从该中空的圆柱形内部通过，然后进行安装固定的。
作为上述摄影灯变光装置的进一步改进，所述的折叠连杆可以折叠的角度为0度至180度，且该折叠连杆的折叠角对着底座连接方向。
作为上述摄影灯变光装置的进一步改进，所述的折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的30%处至70%处。
作为上述摄影灯变光装置的进一步改进，所述的折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的45%处。
有益效果
本发明有益效果在于，多根支撑杆活动连接在底座上，多根支撑杆在相邻的两根支撑杆之间设有折叠连杆，折叠连杆折叠后，可将多根支撑杆及由多根支撑杆支撑的反光罩收拢在一起，摄影灯变光装置的体积大大缩小，方便携带，使用时，将折叠连杆拉直使收拢在一起的多根支撑杆及由多根支撑杆支撑的反光罩撑开，操作简单。
附图说明
图1为本发明摄影灯变光装置第一种状态变化结构示意图
图2为本发明摄影灯变光装置第二种状态变化结构示意图
图3为本发明摄影灯变光装置第三种状态变化结构示意图
图4为本发明摄影灯变光装置第四种状态变化结构示意图
图5为本发明去除反光罩和柔光布的第一种状态变化结构示意图
图6为本发明去除反光罩和柔光布的第二种状态变化结构示意图
图7为本发明去除反光罩和柔光布的第三种状态变化结构示意图
图8为图5的A处结构放大示意图
图9为图5的B处结构放大示意图
图10为图6的C处结构放大示意图
图11为本发明使用过程中的状态图及结构示意图
图12为本发明去除反光罩和柔光布且设有突起的打开结构示意图
图13为本发明去除反光罩和柔光布且设有突起的半折叠结构示意图
图14为图12的D处结构放大示意图
图15为图13的E处结构放大示意图
本发明的最佳实施方式
本发明的实施方式
如图2、图3所示，一种摄影灯变光装置，包括底座1、多根支撑杆2和反光罩3，底座1上面连接多根支撑杆2，支持杆2的数目为3根以上，支撑杆2上面覆盖着反光罩3，两根支撑杆2之间的反光罩3撑开时为梯形状，且该梯形的上底为靠近底座1端，所述的多根支撑杆2活动连接在底座1上，相邻的两根支撑杆2之间均设有折叠连杆，该折叠连杆两端分别通过转轴与两根支撑杆2相连，并且所述的折叠连杆的折叠或打开方向始终与其连接的两根支撑杆2处在同一平面内。图中2、图3中的折叠连杆都为两部分组成，实际应用中可以有2部分以上组成，如3或4部分，只要折叠的方向与其两端的支撑杆处于同一平面即可。折叠连杆的折叠或打开方向始终与其连接的两根支撑杆2处在同一平面内，这样可使折叠连杆折叠后与支撑杆成束状集中收拢，缩小体积，少占用空间，方便携带，并且还容易撑开与收缩，并且这样可以减少支撑杆与折叠连杆相连接的转轴受到转动方向以外的力，使转轴的使用寿命增长。本发明中所说的转轴只能在一个平面内转动。要达到所述的折叠连杆的折叠或打开方向始终与其连接的两根支撑杆2在的同一平面内，折叠连杆内的连接结构和折叠连杆与支撑杆之间的连接结构的转动都是在一个平面内的。
如图1至图10所示的一种摄影灯变光装置，包括一个用于连接支撑杆的底座1，多根支撑杆2，以及由多根支撑杆2支撑且在一端具有开口的反光罩3，在反光罩3开口处31设有正对光源的柔光布4，光源在附图中未给出，光源为照明光源或闪光光源，一般情况下设于反光罩3的底部。本发明的多根支撑杆2活动连接在底座1上，多根支撑杆2在相邻的两根支撑杆之间均设有折叠连杆，所述的折叠连杆的折叠或打开方向始终与其连接的两根支撑杆2在的同一平面内。多根支撑杆2可采用转轴活动连接在底座1上，使多根支撑杆2可利用转轴在底座1上活动。多根支撑杆2优选为四根、八根或十六根，四根支撑杆或八根支撑杆较为理想，在本实施例中采用的是四根支撑杆。反光罩3的内表面为反光面，反光罩3一般采用反光布罩。由多根支撑杆2支撑的反光罩3形状呈多棱锥形，由四根支撑杆支撑的反光罩3形状呈四棱锥形，由八根支撑杆支撑的反光罩3形状呈八棱锥形。
如图1至图10所示，本发明的折叠连杆具有第一连杆51和第二连杆52，第一连杆51一端活动连接在相邻的两根支撑杆的一根支撑杆2上，第一连杆51的另一端和第二连杆52的一端铰接，第二连杆52的另一端活动连接在相邻的两根支撑杆的另一根支撑杆2上。
如图8所示，第一连杆51和第二连杆52可采用转轴活动连接在支撑杆2上，使第一连杆51和第二连杆52可利用转轴在支撑杆2上活动。
如图9和图10所示，第一连杆51的另一端和第二连杆52的一端铰接可采用铰链。图9给出的是第一连杆51和第二连杆52在铰链两端拉直状态示意图，图10给出的是第一连杆51和第二连杆52在铰链两端半折叠状态示意图。
如图1和图7所示的折叠连杆完全折叠后状态示意图，可将四根支撑杆2及由四根支撑杆2支撑的反光罩3收拢在一起，摄影灯变光装置的体积大大缩小，方便携带。
图2和图6给出的是折叠连杆半折叠状态示意图，四根支撑杆2和反光罩3呈半撑开状态。
图3和图5给出的是折叠连杆拉直状态示意图，四根支撑杆2和反光罩3呈完全撑开状态。
图4给出的是在反光罩3开口处31设有正对光源的柔光布4的结构示意图，图4给出的柔光布4已完全盖合在开口处31。
本发明折叠连杆在上面实施例附图中可以看出多采用向下的折叠方式，也可以采用向上的折叠方式，如果采用向上的折叠方式，应尽可能将折叠连杆设在支撑杆的中间处附近或更靠近底座端。
如图11给出本发明使用过程中的状态图，收拢状态S1，打开捆绑带后的状态S2，撑开过程中的状态S3，完全撑开的状态S4，正在开口处覆盖柔光布的状态S5，覆盖完柔光布的状态S6，及实现此过程的摄影灯变光装置结构示意图S7。收起状态为撑开状态的逆过程。在摄影灯变光装置结构示意图S7中可以看出折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的30%处至70%处，这样的设置有利于远离底座端的支撑杆杆端部呈弧形，弧形杆端覆盖反光罩后有利于光线的集聚，其中折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的45%处为一种比较好的安装位置，最利于光线的集聚。图11中折叠连杆为向上折叠方式，可以看出折叠连杆折叠的角度为0度至180度，且该折叠连杆的折叠角对着底座方向。
如图12给出的为撑开状态的结构示意图，图13给出的为半撑开状态的结构示意图，在图12中的D处和图13中的E处为第一连杆51和第二连杆52连接的转轴，图14为图12中的D处的放大图，从中我们可以看出，在紧邻转轴中心位置附近还有个突起53，该突起53为片状半圆形；图15为图13的E处放大图，从中我们也可以看出，在紧邻转轴中心位置附近有个突起53，该突起53为片状半圆形。在转轴附近的突起53有助于在收起或撑开时外力作用在折叠杆上，从力学知识可以得知作用在两根折叠杆的中间位置处最省力，该突起53为片状半圆形有助于手指，特别是拇指和食指用力在上面。该突起53可以在连接转轴附近有一个，也可以是两个。除了省力，因为有了该突起，可以在收起和撑开时用手作用在突起上，如果没有突起把手上的力用在中间位置时，中间位置就容易夹到手。
以上仅为本发明的较佳实施案例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
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  1. 一种摄影灯变光装置，包括底座、多根支撑杆和反光罩，底座上面连接多根支撑杆，支撑杆的数目为3根以上，支撑杆上面覆盖着反光罩，两根支撑杆之间的反光罩撑开时为梯形状，且该梯形的上底为靠近底座，其特征在于：所述的多根支撑杆活动连接在底座上，相邻的两根支撑杆之间均设有折叠连杆，该折叠连杆两端分别通过转轴与两根支撑杆相连，并且所述的折叠连杆的折叠或打开方向始终与其连接的两根支撑杆处在同一平面内。
  2. 根据权利要求1所述的摄影灯变光装置，其特征在于：所述的摄影灯变光装置还包括一柔光布，该柔光布用于遮盖在摄影灯变光装置的广口处，光线从摄影灯变光装置内发出经过柔光布后射出。
  3. 根据权利要求1所述的摄影灯变光装置，其特征在于：所述的折叠连杆具有第一连杆和第二连杆，第一连杆一端通转轴连接在相邻的两根支撑杆的一根支撑杆上，第一连杆的另一端和第二连杆的一端铰接，第二连杆的另一端通过转轴连接在相邻的两根支撑杆的另一根支撑杆上。
  4. 根据权利要求1所述的摄影灯变光装置，其特征在于：所述的折叠连杆具有等长的第一连杆和第二连杆，第一连杆一端通转轴连接在相邻的两根支撑杆的一根支撑杆上，第一连杆的另一端和第二连杆的一端铰接，第二连杆的另一端通过转轴连接在相邻的两根支撑杆的另一根支撑杆上。
  5. 根据权利要求3或4所述的摄影灯变光装置，其特征在于：所述的第一连杆和第二连杆的连接处附近设有一突起，该突起在折叠或打开折叠连杆时方便外力作用在上面。
  6. 根据权利要求5所述的摄影灯变光装置，其特征在于：所述的突起为片状半圆形或圆柱形。
  7. 根据权利要求5所述的摄影灯变光装置，其特征在于：所述的突起为圆柱形且位于第一连杆和第二连杆的连接处外侧。
  8. 根据权利要求3或4所述的摄影灯变光装置，其特征在于：所述的折叠连杆可以折叠的角度为0度至180度，且该折叠连杆的折叠角对着底座方向。
  9. 根据权利要求3或4所述的摄影灯变光装置，其特征在于：所述的折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的30%处至70%处。
  10. 根据权利要求3或4所述的摄影灯变光装置，其特征在于：所述的折叠连杆连接在支撑杆上的位置为该支撑杆从底座端到支撑杆的45%处。
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