WO2024067240A1 - 减影台灯 - Google Patents

减影台灯 Download PDF

Info

Publication number
WO2024067240A1
WO2024067240A1 PCT/CN2023/119634 CN2023119634W WO2024067240A1 WO 2024067240 A1 WO2024067240 A1 WO 2024067240A1 CN 2023119634 W CN2023119634 W CN 2023119634W WO 2024067240 A1 WO2024067240 A1 WO 2024067240A1
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
light
lamp
illuminated
plate
Prior art date
Application number
PCT/CN2023/119634
Other languages
English (en)
French (fr)
Inventor
李京蔓
Original Assignee
苏州欧普照明有限公司
欧普照明股份有限公司
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.)
Filing date
Publication date
Priority claimed from CN202211173288.3A external-priority patent/CN115681845A/zh
Priority claimed from CN202222552669.4U external-priority patent/CN218064521U/zh
Application filed by 苏州欧普照明有限公司, 欧普照明股份有限公司 filed Critical 苏州欧普照明有限公司
Publication of WO2024067240A1 publication Critical patent/WO2024067240A1/zh

Links

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
    • F21S6/00—Lighting devices intended to be free-standing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure

Definitions

  • the present application relates to a subtraction desk lamp, belonging to the technical field of lighting fixtures.
  • the purpose of the present application is to provide a shadow reduction desk lamp to solve the problem that existing desk lamps generate shadows when in use.
  • the technical solution of the present application provides a shadow-reducing desk lamp for illuminating an object to be illuminated, comprising a lamp holder, a lamp head and a lamp pole connecting the lamp holder and the lamp head, the lamp head having a light emitting plate, part or all of the adjacent sides of the light emitting plate being recessed in a horizontal direction toward a side away from an illuminated position, the light emitting plate comprising a plurality of light emitting areas, each of the light emitting areas having a light emitting center, and the light emitting energy of each of the light emitting areas is proportional to the light emitting distance of the light emitting area, wherein the adjacent side of the light emitting plate is a side of the light emitting plate close to the illuminated position, the illuminated position is the position of the illuminated object, and the light emitting distance of each of the light emitting areas is the distance between the light emitting center of the light emitting area and the illuminated position.
  • the light emitting plate is an arc-shaped light emitting plate, and the bottom of the light emitting plate has a light emitting surface, the light emitting surface is a plane, the light emitting area is distributed on the light emitting surface, the light emitting center is located at the geometric center of the light emitting area, and a plurality of the light emitting centers form a continuous arc.
  • the light emitting distances of the light emitting areas are the same, and the light emitting energies of the light emitting areas are also the same.
  • the light emitting plate is a special-shaped light emitting plate
  • the bottom of the light emitting plate has a light emitting surface
  • the light emitting surface is a curved surface.
  • the light output energy of the light output area is defined as Define the light emitting distance of the light emitting area as L, then Wherein, n is the number of the light emitting areas.
  • the angle between two ends of the orthographic projection of the light emitting plate and the illuminated position is 2 ⁇ , wherein 0° ⁇ 180°.
  • the angle between two ends of the orthographic projection of the light emitting plate and the illuminated position is one of 120°, 240° and 360°.
  • the light emitting center has a central orthographic projection on the horizontal plane where the illuminated position is located, and the distance between the central orthographic projection and the illuminated position is defined as r, and the distance between the light emitting center and the horizontal plane where the illuminated position is located is defined as The vertical spacing between them is H, then the distance between the illuminated position and the light emitting center on the light emitting plate is
  • the lamp head corresponds to the shape of the light emitting plate
  • the lamp pole includes a first lamp pole and a second lamp pole
  • the first lamp pole is rotatably connected to the lamp holder
  • the second lamp pole is rotatably connected to the first lamp pole
  • the lamp head is rotatably connected to the second lamp pole.
  • the lamp head has a plurality of light sources, and the light emitted by the light sources passes through the light emitting area of the light emitting plate and is emitted outward, and each of the light emitting areas corresponds to at least one of the light sources.
  • the beneficial effect of the present application is that in the shadow-reducing desk lamp provided by the technical solution of the present application, since part or all of the adjacent sides of the light-emitting plate are set to be recessed in the horizontal direction toward the side away from the illuminated position, the illuminated position can be illuminated at multiple angles. Moreover, since the light-emitting energy of each light-emitting area is set to be proportional to the distance between the light-emitting center of the light-emitting area and the illuminated position, the illuminated position can also be effectively supplemented with light. Thus, the shadow-reducing desk lamp can effectively supplement light when illuminating the illuminated position at multiple angles, thereby reducing the presence of shadows.
  • FIG1 is a schematic diagram of the three-dimensional structure of a subtraction desk lamp in one embodiment of the present application.
  • FIG2 is a schematic diagram showing the relationship between the light emitting plate and the illuminated position in one embodiment of the present application
  • FIG3 is a schematic diagram of an orthographic projection of the light emitting plate and the illuminated position in FIG2 ;
  • FIG4 is a schematic diagram of a shadow test of a light emitting plate in an embodiment of the present application.
  • FIG5 is a comparison diagram of shadow test results of a shadow reduction desk lamp according to an embodiment of the present application and a common desk lamp;
  • FIG6 is a schematic diagram of the three-dimensional structure of a subtraction desk lamp in another embodiment of the present application.
  • FIG7 is a schematic diagram showing the relationship between the light emitting plate and the illuminated position in another embodiment of the present application.
  • FIG. 8 is a schematic diagram of an orthographic projection of the light emitting plate and the illuminated position in FIG. 7 .
  • a shadow reduction desk lamp 100 is provided, which is used to illuminate an object and reduce the shadow produced by the object under the light.
  • the subtraction desk lamp 100 comprises: a lamp holder 4, a lamp head 1 and a lamp pole 3 connecting the lamp holder 4 and the lamp head 1.
  • the lamp head 1 comprises a light emitting plate 11 and a plurality of light sources (not shown).
  • the shape of the lamp holder 1 corresponds to the shape of the light output plate 11 .
  • the light emitting plate 11 includes a plurality of light emitting areas 111, each of which has a light emitting center, and the light emitting energy of each light emitting area 111 is proportional to the light emitting distance of the light emitting area 111, wherein the adjacent side of the light emitting plate 11 is the side of the light emitting plate 11 close to the illuminated position 2, the illuminated position 2 is the position where the illuminated object is located, and the light emitting distance of each light emitting area 111 is the distance between the light emitting center of the light emitting area 111 and the illuminated position 2.
  • the light source is an LED lamp bead, and each light emitting area 111 corresponds to at least one light source, so that the light emitted by the light source passes through the light emitting area 111 of the light emitting plate 11 and is emitted outward.
  • the illuminated position 2 is defined as a certain point formed by the illuminated object at the illuminated position 2.
  • the illuminated position 2 may be an area, and all illuminated objects in the area have the subtraction effect.
  • the light emitting center is located at the geometric center of the light emitting area 111, and a complete light emitting surface with uniform light emission is formed on the light emitting plate 11.
  • this complete light emitting surface can also be composed of a plurality of light emitting surfaces with uniform light emission. As long as the light can be uniformly emitted outward through the light emitting plate 11, there is no limitation here.
  • the shadow-reducing desk lamp 100 also includes multiple rotating shafts 5, the lamp pole 3 includes a first lamp pole 31 and a second lamp pole 32, the first lamp pole 31 and the lamp holder 4 are rotatably connected via the rotating shaft 5, the end of the first lamp pole 31 away from the lamp holder 4 is rotatably connected to the second lamp pole 32 via the rotating shaft 5, and the end of the second lamp pole 32 away from the first lamp pole 31 is rotatably connected to the lamp head 1 via the rotating shaft 5, wherein the connection method and specific structure between the lamp holder 4, the first lamp pole 31, the second lamp pole 32 and the lamp head 1 can be designed according to the prior art, the invention point of the present application lies in the relationship between the light emitting plate 11 and the illuminated position 2, and the following specification content will describe the invention point in detail.
  • the light emitting plate 11 is an arc-shaped light emitting plate.
  • the illuminated position 2 is located at the center of the arc.
  • the bottom of the light emitting plate 11 has a light emitting surface, which is a plane.
  • the light emitting areas 111 are distributed on the light emitting surface, the light emitting center is located at the geometric center of the light emitting area 111, and several light emitting centers form a continuous arc, so that the light emitting distances of each light emitting area 111 are the same, that is, the distances between the illuminated position 2 and each light emitting center are the same. At the same time, the light emitting energies of the light emitting areas 111 corresponding to each light emitting center are also the same.
  • the intensity of the light emitted from the light emitting area 111 on the illuminated position 2 is the same, and on the other hand, the light can be irradiated to the illuminated position 2 from multiple directions, thereby reducing the shadow caused by light irradiation in a single direction.
  • the height of the light emitting surface is defined as H, that is, the vertical distance between the light emitting center and the horizontal plane where the illuminated position 2 is located is H, then the vertical distances between the multiple light emitting centers and the horizontal plane where the illuminated position 2 is located are H 1 , H 2 , H 3 , ... H n , respectively, where n in this embodiment is the number of light emitting centers or light emitting areas 111 .
  • the number of light sources corresponding to each light emitting area 111 is the same, and the specifications of each light source are also the same, so that the light emitting energy of each light emitting area 111 is the same.
  • the number of light sources corresponding to each light emitting area 111 and the specifications of the light sources may be different, as long as the light emitting energy of multiple light emitting areas 111 can be the same, and the number and specifications of the light sources are not limited here.
  • the angle between the two ends of the light emitting plate 11 and the illuminated position 2 is defined as 2 ⁇ , where 0° ⁇ 180°.
  • the angle 2 ⁇ is one of 120°, 240° and 360° to adapt to different lighting environments.
  • the illuminated object at the illuminated position 2 will produce a partial shadow on the side away from the lamp head 1.
  • the angle 2 ⁇ is 240°
  • the illuminated object at the illuminated position 2 will produce a faint shadow on the side close to the lamp head 1.
  • the angle 2 ⁇ is 360°, that is, the lamp head 1 is arranged in a ring shape
  • the illuminated object at the illuminated position 2 is completely exposed to the light, so that the illuminated object will not produce a shadow or produce a shadow that cannot be observed by the human eye.
  • the angle 2 ⁇ can also be any angle between 0° and 360°, wherein the angle 2 ⁇ is not 0°, so that the subtraction lamp 100 can adapt to a variety of different environments.
  • the specific value of the angle 2 ⁇ is not limited here.
  • each light emitting area 111 is divided on the partial light emitting plate 11 and are respectively defined as A light emitting area 111, B light emitting area 111, C light emitting area 111 and D light emitting area 111.
  • the light in the A light emitting area 111 is emitted to the illuminated position 2. Due to the obstruction of the illuminated object, a shadow with an angle of ⁇ 1 is formed on the side of the illuminated object away from the light source; the light in the B light emitting area 111 is emitted to the illuminated position 2.
  • a shadow with an angle of ⁇ 2 is formed on the side of the illuminated object away from the light source.
  • the shadow with an angle of ⁇ 1 does not overlap with the shadow with an angle of ⁇ 2 , that is, the light in the B light emitting area can be irradiated in the shadow with an angle of ⁇ 1 , and the light in the A light emitting area can be irradiated in the shadow with an angle of ⁇ 2 .
  • the light emitting plate 11 is arc-shaped, when the angles ⁇ 1 , ⁇ 2 , ⁇ 3 and ⁇ 4 are the same, the corresponding light emitting regions A 111 , B 111 , C 111 and D 111 have the same area.
  • the shadow test is performed on the subtraction desk lamp 100 in this embodiment and the existing desk lamp respectively, and the test method is as follows: the subtraction desk lamp 100 is placed on the test surface, and the object to be illuminated is respectively set at 300 mm and 500 mm away from the subtraction desk lamp, and the subtraction desk lamp 100 is turned on in a dark or dim light environment to obtain a shadow diagram a of the object to be illuminated under the subtraction desk lamp 100.
  • the shadow diagram b of the object to be illuminated under the existing desk lamp is obtained in the same way.
  • the shadow reduction effect of the shadow reduction desk lamp 100 in this embodiment is significant, which can improve the lighting effect, and is beneficial to preventing children from myopia and treating children's Protect children's eyesight.
  • the shadow-reducing desk lamp 100 sets part or all of the adjacent sides of the light-emitting plate 11 to be recessed in the horizontal direction toward the side away from the illuminated position 2, so that the illuminated position 2 can be illuminated at multiple angles. Moreover, since the light-emitting energy of each light-emitting area 111 is set to be proportional to the distance between the light-emitting center of the light-emitting area 111 and the illuminated position 2, the illuminated position 2 can also be effectively supplemented with light. Therefore, the shadow-reducing desk lamp 100 can effectively supplement light when illuminating the illuminated position 2 at multiple angles, thereby reducing the presence of shadows.
  • the lamp head 10 has a light emitting plate 101 .
  • the light emitting plate 101 is a special-shaped light emitting plate.
  • the bottom of the light emitting plate 101 has a curved light emitting surface.
  • the areas of the corresponding light exit regions A, B, C and D may be different.
  • the light emitting area 1011 and the light emitting center are both located on the lower surface of the light emitting plate 101 , that is, on the light emitting surface.
  • part of the special-shaped light emitting plate 101 is also recessed in the horizontal direction toward the side away from the illuminated position 2, so that the light emitted from multiple light emitting areas 1011 can all illuminate the illuminated position 2, so as to illuminate the illuminated object at the illuminated position 2.
  • the special-shaped light emitting plate 101 may be interpreted as an irregularly shaped light emitting plate 101, for example, a “concave”-shaped light emitting plate 101, a light emitting plate 101 in an irregular shape such as a curved shape, etc.
  • the height of the light emitting plate 101 is defined as H, that is, the vertical distance between the light emitting center and the horizontal plane where the illuminated position 2 is located is H, then the vertical distances between multiple light emitting centers and the horizontal plane where the illuminated position 2 is located are H 1 , H 2 , H 3 , ... H n , where n in this embodiment is the number of light emitting centers or light emitting areas 1011 .
  • the light emitting center has a central orthographic projection on the horizontal plane where the illuminated position 2 is located, and the distance between the central orthographic projection and the illuminated position 2 is defined as r. Then, the distances between the illuminated position 2 and the multiple central orthographic projections are r 1 , r 2 , r 3 , ... r n , respectively.
  • the light emitting distance of the light emitting area 1011 is defined as L.
  • the straight-line distances between the multiple light-emitting centers on the light-emitting plate 101 and the illuminated position 2 are L 1 , L 2 , L 3 , ..., L n , respectively.
  • the light-emitting energy of the light-emitting area 1011 is defined as Then the light energies of the multiple light emitting areas 1011 are respectively
  • the energy of the light emitted by the multiple light emitting areas 1011 is the same, so as to reduce the shadow of the illuminated object. That is to say, when the distance between the light emitting center and the illuminated position 2 increases, the light emitting energy of the light emitting area 111 corresponding to the light emitting center also increases. In other words, the light emitting energy of the light emitting area 1011 is proportional to the distance between the light emitting center of the light emitting area 111 and the illuminated position 2, so that each light emitting area 1011 evenly fills the illuminated object at the illuminated position 2, so as to achieve the shadow reduction effect.
  • each light emitting center and the illuminated position 2 are different, the light emitting energy of each light emitting area 1011 is set to be different, so that the illumination of the light emitted from each light emitting area 1011 is the same when it reaches the illuminated position 2. To reduce the shadow of the illuminated position 2 under the desk lamp.
  • the number of light sources in each light emitting area 1011 can be set to be different so that the light emitting energy of each light emitting area 1011 is different; the light source can also be set to different specifications to correspond to different light emitting areas 1011; it can also be set to a light source with variable brightness, and the light emitting energy of the light source can be controlled by controlling the voltage of the light source; the light emitting area 1011 can also be set to different light-transmitting materials or polarized materials to achieve control of the light emitting energy of different light emitting areas 1011. As long as the light emitting energy of each light emitting area 1011 can be controlled, there is no restriction on the type and specification of the light source.
  • the angle between the two ends of the light emitting plate 101 and the illuminated position 2 is defined as 2 ⁇ , where 0° ⁇ 180°.
  • the angle 2 ⁇ is one of 120°, 240° and 360° to adapt to different lighting environments.
  • the illuminated object at the illuminated position 2 will produce a partial shadow on the side away from the lamp holder 10.
  • the angle 2 ⁇ is 240°
  • the illuminated object at the illuminated position 2 will produce a faint shadow on the side close to the lamp holder 10.
  • the angle 2 ⁇ is 360°, that is, the lamp holder 10 is arranged in a ring shape
  • the illuminated object at the illuminated position 2 is completely exposed to the light, so that the illuminated position 2 will not produce a shadow or a shadow that cannot be observed by the human eye.
  • the shadow subtraction principle of the lamp head 10 is the same as the shadow subtraction principle of the lamp head 1 in the embodiments shown in Figures 1 to 3.
  • the shadow subtraction desk lamp using the lamp head 10 and the shadow subtraction desk lamp using the lamp head 1 have similar shadow test results, which will not be repeated here.
  • the illuminated position 2 can be illuminated at multiple angles.
  • the light emitting energy of each light emitting area 1011 is set to be proportional to the distance between the light emitting center of the light emitting area 1011 and the illuminated position 2, the illuminated position 2 can also be effectively supplemented with light.
  • the shadow-reducing desk lamp 100 can effectively supplement light when illuminating the illuminated position 2 at multiple angles, thereby reducing the presence of shadows.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

本申请提供了一种减影台灯，用于对被照物进行照明，包括灯座、灯头以及连接灯座和灯头的灯杆，灯头具有出光板，出光板的部分或全部相邻侧沿水平方向朝着背离被照位置的一侧凹陷，出光板包括若干个出光区域，每个出光区域具有出光中心，且每个出光区域的出光能量与该出光区域的出光距离呈正比，其中，出光板的相邻侧为出光板靠近被照位置的一侧，被照位置为被照物所在的位置，每个出光区域的出光距离为该出光区域的出光中心与被照位置之间的距离。本申请通过将出光板的部分或全部相邻侧设置为向内凹陷、以及将各出光区域的出光能量设置为与出光距离呈正比，不仅可对被照位置多角度的照明，且对被照位置能够有效补光，减弱了阴影。

Description

减影台灯
本申请要求了申请日为2022年9月26日，申请号为202211173288.3，发明名称为“减影台灯”以及申请日为2022年9月26日，申请号为202222552669.4，发明名称为“减影台灯”的中国专利申请的优先权，这些专利申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种减影台灯，属于照明灯具技术领域。
背景技术
目前，阴影产生的原因是光线沿直线传播过程中，受到了物体的遮挡，所以在物体的背光侧形成了影子，市面上的台灯一般都会存在这样的问题：在书写时，因为手的遮挡，在书写面产生阴影，长时间在这种书写情况下，会对人眼造成一定的视觉疲劳，从而不利于使用者工作或学习。
有鉴于此，确有必要对现有的台灯提出改进，以解决上述问题。
发明内容
本申请的目的在于提供一种减影台灯，以解决现有台灯在使用时会产生阴影的问题。
为实现上述目的，本申请的技术方案提供了一种减影台灯，用于对被照物进行照明，包括灯座、灯头以及连接所述灯座和所述灯头的灯杆，所述灯头具有出光板，所述出光板的部分或全部相邻侧沿水平方向朝着背离被照位置的一侧凹陷，所述出光板包括若干个出光区域，每个所述出光区域具有出光中心，且每个所述出光区域的出光能量与该出光区域的出光距离呈正比，其中，所述出光板的相邻侧为所述出光板靠近所述被照位置的一侧，所述被照位置为所述被照物所在的位置，每个所述出光区域的出光距离为该出光区域的出光中心与所述被照位置之间的距离。
可选的，所述出光板为圆弧状出光板，并且，所述出光板的底部具有出光面，所述出光面为平面，所述出光区域分布于所述出光面上，所述出光中心位于所述出光区域的几何中心处，且若干个所述出光中心构成一连续的弧线。
可选的，各所述出光区域的出光距离相同，并且，各所述出光区域的出光能量也相同。
可选的，所述出光板为异形出光板，所述出光板的底部具有出光面，所述出光面为弧面。
可选的，定义所述出光区域的出光能量为定义所述出光区域的出光距离为L，则其中，n为若干个所述出光区域的数量。
可选的，所述出光板正投影的两端与所述被照位置之间的夹角为2θ，其中，0°<θ≤180°。
可选的，所述出光板正投影的两端与所述被照位置之间的夹角为120°、240°和360°中的一个。
可选的，所述出光中心在所述被照位置所在的水平面上具有中心正投影，定义所述中心正投影与所述被照位置之间的距离为r，定义所述出光中心与所述被照位置所在的水平面之 间的垂直间距为H，则所述被照位置与所述出光板上的出光中心之间的距离
可选的，所述灯头与所述出光板的形状相对应，所述灯杆包括第一灯杆和第二灯杆，所述第一灯杆与所述灯座转动连接，所述第二灯杆与所述第一灯杆转动连接，所述灯头与所述第二灯杆转动连接。
可选的，所述灯头具有若干个光源，所述光源发出的光线穿过所述出光板的出光区域向外射出，每个所述出光区域与至少一个所述光源相对应。
本申请的有益效果是：本申请的技术方案提供的减影台灯中，由于将出光板的部分或全部相邻侧设置为沿水平方向朝着背离被照位置的一侧凹陷，因此，可对被照位置多角度照明，不仅如此，由于将各出光区域的出光能量设置为与该出光区域的出光中心和被照位置之间的距离呈正比，因此，还可对被照位置有效补光。从而，减影台灯能够在多角度照明被照位置时有效补光，进而，减弱了阴影的存在感。
附图说明
图1是本申请一实施例中减影台灯的立体结构示意图；
图2是本申请一实施例中出光板与被照位置的关系示意图；
图3是图2中出光板与被照位置的正投影示意图；
图4是本申请一实施例中出光板的阴影测试示意图；
图5是本申请一实施例的减影台灯与普通台灯的阴影测试结果对比图；
图6是本申请另一实施例中减影台灯的立体结构示意图；
图7是本申请另一实施例中出光板与被照位置的关系示意图；
图8是图7中出光板与被照位置的正投影示意图。
附图标记说明：
100-减影台灯，1、10-灯头，11、101-出光板，111、1011-出光区域，2-被照位置，3-
灯杆，31-第一灯杆，32-第二灯杆，4-灯座，5-转轴。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本申请进行详细描述。
请参阅图1和图3，本实施例中提供了一种减影台灯100，用于对被照物进行照明，并减少被照物在光线下产生的阴影。
减影台灯100包括：灯座4、灯头1以及连接灯座4和灯头1的灯杆3。其中，灯头1包括出光板11和若干个光源(未图示)。
在本实施例中，灯头1的形状与出光板11的形状相对应。
具体的，出光板11的部分或全部相邻侧沿水平方向朝着背离被照位置2的一侧凹陷， 出光板11包括若干个出光区域111，每个出光区域111具有出光中心，且每个出光区域111的出光能量与该出光区域111的出光距离呈正比，其中，出光板11的相邻侧为出光板11靠近被照位置2的一侧，被照位置2为被照物所在的位置，每个出光区域111的出光距离为该出光区域111的出光中心与被照位置2之间的距离。
优选的，光源为LED灯珠，并且，每个出光区域111至少对应一个光源，使得光源发出的光线穿过出光板11的出光区域111向外射出。
本实施例中，为了方便描述和计算，将被照位置2定义为被照物在该被照位置2处形成的一个确定的点，而在实际情况中，被照位置2可以为一个区域，在该区域内的被照物均具有减影的效果。
本实施例中，出光中心位于出光区域111的几何中心处，出光板11上形成有一个完整的、出光均匀的出光面，当然，这一个完整的出光面也可以由多个出光均匀的出光面拼接组成。只要能够实现光线穿过出光板11向外均匀射出即可，此处不做限制。
具体的，减影台灯100还包括多个转轴5，灯杆3包括第一灯杆31和第二灯杆32，第一灯杆31与灯座4通过转轴5实现转动连接，第一灯杆31远离灯座4的一端与第二灯杆32通过转轴5实现转动连接，第二灯杆32远离第一灯杆31的一端与灯头1通过转轴5实现转动连接，其中，灯座4、第一灯杆31、第二灯杆32和灯头1之间的连接方式以及具体结构可以按照现有技术进行设计，本申请的发明点在于出光板11与被照位置2之间的关系，以下说明书内容将针对该发明点进行详细描述。
请继续参阅图1至图3，在本实施例中，出光板11为圆弧状出光板，被照位置2位于该圆弧的中心位置，出光板11的底部具有出光面，该出光面为平面。
出光区域111分布于出光面上，出光中心位于出光区域111的几何中心处，且若干个出光中心构成一连续的弧线，使得各出光区域111的出光距离相同，即被照位置2与各个出光中心之间的距离相同，同时，各出光中心对应的出光区域111的出光能量也相同，如此设置，一方面使得从出光区域111射出的光线照射在被照位置2上的强度相同，另一方面使得光线能够从多个方向照向被照位置2，从而，可减弱单方向光线照射产生的阴影。
具体的，定义出光面的高度为H，即出光中心与被照位置2所在水平面之间的垂直间距为H，则多个出光中心与被照位置2所在水平面之间的垂直间距分别为H1、H2、H3、…Hn，其中，本实施例中的n为若干个出光中心或出光区域111的数量。
在本实施例中，出光板11为圆弧状出光板，同时，出光面为平面，且该平面与被照位置2所在平面相互平行，因此，位于出光面上的各出光中心可构成一连续的弧线，且相应的，H1＝H2＝H3＝Hn。
此外，本实施例中，出光中心在被照位置2所在水平面上具有中心正投影，定义中心正投影与被照位置2之间的距离为r，则被照位置2与多个中心正投影之间的距离分别为r1、r2、r3、…rn。由于出光板11呈圆弧状，且被照位置2位于该圆弧的中心位置，故r1＝r2＝r3＝rn。
在此基础上，定义多个出光中心与被照位置2之间的实际距离分别为L1、L2、L3、…Ln，根据因此，L1＝L2＝L3＝Ln，即多个出光中心与被照位置2之间的距离相同，以减弱单方向光线照射产生的阴影。
本实施例中，每个出光区域111对应的光源的数量相同，且每个光源的规格也相同，使得每个出光区域111的出光能量相同。当然，在其他实施例中，每个出光区域111对应的光源数量和光源规格可以不同，只要能够实现多个出光区域111的出光能量相同即可，此处对光源的数量及规格不做限制。
在出光板11的正投影方向上，定义出光板11两端与被照位置2之间的夹角为2θ，其中，0°<θ≤180°。优选的，夹角2θ为120°、240°和360°中的一个，以适应不同的照明环境。
具体的，当夹角2θ为120°时，被照位置2处的被照物在远离灯头1的一侧会产生部分阴影，当夹角2θ为240°时，被照位置2处的被照物在靠近灯头1的一侧会产生微弱阴影，当夹角2θ为360°时，即灯头1呈环形设置，被照位置2处的被照物完全暴露在光线照射下，使得被照物不会产生阴影或产生通过人眼无法观测到的阴影。
当然，在其他实施例中，夹角2θ还可以为0°～360°之间的任意角度，其中夹角2θ不为0°，使得减影台灯100能够适应多种不同的环境，此处对夹角2θ的具体数值不做限定。
请继续参阅图3，为了更清楚的描述减影台灯100的减影原理，在部分出光板11上划分四个出光区域111并分别定义为A出光区域111、B出光区域111、C出光区域111和D出光区域111。其中，A出光区域111内的光线射向被照位置2，由于被照物的阻挡，在被照物远离光源的一侧形成角度为α1的阴影；B出光区域111内的光线射向被照位置2，由于被照物的阻挡，在被照物远离光源的一侧形成角度为α2的阴影，角度为α1的阴影与角度为α2的阴影不重叠，也就是说，B出光区域内的光线能够照射在角度为α1的阴影内，A出光区域内的光线能够照射在角度为α2的阴影内。同理，A出光区域111、B出光区域111、C出光区域111和D出光区域111内的光线射向被照位置2时，角度为α1、α2、α3和α4的阴影均未重叠，即减弱了被照物在被照位置2处的阴影。
本实施例中，由于出光板11呈圆弧状，当α1、α2、α3和α4的角度相同时，所对应的A出光区域111、B出光区域111、C出光区域111和D出光区域111的面积相同。
请参阅图4和图5，将本实施例中的减影台灯100与现有的台灯分别做阴影测试，测试方法为：在测试面上放置减影台灯100，在距离减影台灯300mm和500mm处分别设置被照物，在无光或微光的环境下打开减影台灯100，以得到被照物在减影台灯100下的阴影示意图a。按照同样的方式得到被照物在现有台灯下的阴影示意图b。
在本测试中，唯一的变量为台灯的类型不同。
将减影台灯100下的阴影示意图与现有台灯下的阴影示意图进行对比，可以看出：本实施例中的减影台灯100的减影效果显著，可以提高照明效果，有益于预防儿童近视、及对儿 童的视力保护。
综上所述，减影台灯100通过将出光板11的部分或全部相邻侧设置为沿水平方向朝着背离被照位置2的一侧凹陷，因此，可对被照位置2多角度照明，不仅如此，由于将各出光区域111的出光能量设置为与该出光区域111的出光中心和被照位置2之间的距离呈正比，因此，还可对被照位置2有效补光。从而，减影台灯100能够在多角度照明被照位置2时有效补光，进而，减弱了阴影的存在感。
请参阅图6至图8，在另一实施例中，灯头10具有出光板101，出光板101为异形出光板，出光板101的底部具有弧面的出光面。
在另一实施例中，即使α1、α2、α3和α4的角度相同，所对应的A出光区域1011、B出光区域1011、C出光区域1011和D出光区域1011之间的面积也可以不同。
在另一实施例中，出光区域1011和出光中心均位于出光板101的下表面，即位于出光面上。
具体的，部分异形出光板101在水平方向上也朝向远离被照位置2的一侧凹陷，使得多个出光区域1011射出的光线均能够照射在被照位置2处，以实现对被照位置2处的被照物进行照明。
在另一实施例中，异形的出光板101可以解释为形状不规则的出光板101，例如：“凹”字形出光板101、呈弯曲状等不规则形状的出光板101等。
具体的，定义出光板101的高度为H，即出光中心与被照位置2所在水平面之间的垂直间距为H，则多个出光中心与被照位置2所在水平面之间的垂直间距为H1、H2、H3、…Hn，其中，本实施例中的n为若干个出光中心或出光区域1011的数量。
此外，在另一实施例中，出光中心在被照位置2所在水平面上具有中心正投影，定义中心正投影与被照位置2之间的距离为r，则被照位置2与多个中心正投影之间的距离分别为r1、r2、r3、…rn。在此基础上，定义出光区域1011的出光距离为L，根据即可得到出光板101上的多个出光中心与被照位置2之间的直线距离分别为L1、L2、L3、…Ln。此外，定义出光区域1011的出光能量为则多个出光区域1011的出光能量分别为
在另一实施例中，当时，多个出光区域1011发出的光线照射在被照位置2处的能量相同，以减弱被照物的阴影。也就是说，当出光中心与被照位置2之间的距离增大时，该出光中心对应的出光区域111的出光能量也增大，换而言之，出光区域1011的出光能量与该出光区域111的出光中心和被照位置2之间的距离呈正比，使得各出光区域1011对被照位置2处的被照物进行均匀补光，以达到减影的效果。
在另一实施例中，由于各出光中心与被照位置2之间的距离不同，故将各出光区域1011的出光能量设置为不同，使得各出光区域1011射出的光线在到达被照位置2时的照度相同， 以减弱被照位置2在台灯下的阴影。
具体的，可以通过将每个出光区域1011的光源数量设置为不同，使得各出光区域1011的出光能量不同；也可以通过将光源设置为不同规格，以对应不同的出光区域1011；也可以设置为亮度可变化的光源，通过控制光源的电压以控制光源的出光能量；还可以将出光区域1011设置为不同的透光材料或偏光材料，以实现对不同出光区域1011的出光能量进行控制，只要能够控制各出光区域1011的出光能量即可，此处对光源的类型和规格不做限制。
在出光板101的正投影方向上，定义出光板101两端与被照位置2之间的夹角为2θ，其中，0°<θ≤180°。优选的，夹角2θ为120°、240°和360°中的一个，以适应不同的照明环境。
具体的，当夹角2θ为120°时，被照位置2处的被照物在远离灯头10的一侧会产生部分阴影，当夹角2θ为240°时，被照位置2处的被照物在靠近灯头10的一侧会产生微弱的阴影，当夹角2θ为360°时，即灯头10呈环形设置，被照位置2处的被照物完全暴露在光线照射下，使得被照位置2不会产生阴影或产生通过人眼无法观测到的阴影。
在另一实施例中，灯头10的减影原理与图1至图3所示实施例中的灯头1的减影原理相同，此外，采用灯头10的减影台灯与采用灯头1的减影台灯具有近似的阴影测试结果，此处不再赘述。
综上所述，在另一实施例中，由于将减影台灯100的出光板101的部分或全部相邻侧设置为沿水平方向朝着背离被照位置2的一侧凹陷，因此，可对被照位置2多角度照明，不仅如此，由于将各出光区域1011的出光能量设置为与该出光区域1011的出光中心和被照位置2之间的距离呈正比，因此，还可对被照位置2有效补光。从而，减影台灯100能够在多角度照明被照位置2时有效补光，进而，减弱了阴影的存在感。
以上实施例仅用以说明本申请的技术方案而非限制，尽管参照较佳实施例对本申请进行了详细说明，本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或者等同替换，而不脱离本申请技术方案的精神和范围。

Claims (10)

  1. 一种减影台灯，用于对被照物进行照明，包括灯座(4)、灯头(1、10)以及连接所述灯座(4)和所述灯头(1、10)的灯杆(3)，其中，
    所述灯头(1、10)具有出光板(11、101)，所述出光板(11、101)的部分或全部相邻侧沿水平方向朝着背离被照位置(2)的一侧凹陷，所述出光板(11、101)包括若干个出光区域(111、1011)，每个所述出光区域(111、1011)具有出光中心，且每个所述出光区域(111、1011)的出光能量与该出光区域(111、1011)的出光距离呈正比，其中，所述出光板(11、101)的相邻侧为所述出光板(11、101)靠近所述被照位置(2)的一侧，所述被照位置(2)为所述被照物所在的位置，每个所述出光区域(111、1011)的出光距离为该出光区域(111、1011)的出光中心与所述被照位置(2)之间的距离。
  2. 根据权利要求1所述的减影台灯，其中，所述出光板(11)为圆弧状出光板，并且，所述出光板(11)的底部具有出光面，所述出光面为平面，所述出光区域(111)分布于所述出光面上，所述出光中心位于所述出光区域(111)的几何中心处，且若干个所述出光中心构成一连续的弧线。
  3. 根据权利要求2所述的减影台灯，其中，各所述出光区域(111)的出光距离相同，并且，各所述出光区域(111)的出光能量也相同。
  4. 根据权利要求1所述的减影台灯，其中，所述出光板(101)为异形出光板，所述出光板(101)的底部具有出光面，所述出光面为弧面。
  5. 根据权利要求4所述的减影台灯，其中，定义所述出光区域(1011)的出光能量为定义所述出光区域(1011)的出光距离为L，则其中，n为若干个所述出光区域(1011)的数量。
  6. 根据权利要求2或4所述的减影台灯，其中，所述出光板(11、101)正投影的两端与所述被照位置(2)之间的夹角为2θ，其中，0°<θ≤180°。
  7. 根据权利要求6所述的减影台灯，其中，所述出光板(11、101)正投影的两端与所述被照位置(2)之间的夹角为120°、240°和360°中的一个。
  8. 根据权利要求2或4所述的减影台灯，其中，所述出光中心在所述被照位置(2)所在的水平面上具有中心正投影，定义所述中心正投影与所述被照位置(2)之间的距离为r，定义所述出光中心与所述被照位置(2)所在的水平面之间的垂直间距为H，则所述被照位置(2)与所述出光板(11、101)上的出光中心之间的距离
  9. 根据权利要求1所述的减影台灯，其中，所述灯头(1、10)与所述出光板(11、101)的形状相对应，所述灯杆(3)包括第一灯杆(31)和第二灯杆(32)，所述第一灯杆(31)与所述灯座(4)转动连接，所述第二灯杆(32)与所述第一灯杆(31)转动连接，所述灯头(1、10)与所述第二灯杆(32)转动连接。
  10. 根据权利要求1所述的减影台灯，其中，所述灯头(1、10)具有若干个光源，所述光源发出的光线穿过所述出光板(11、101)的出光区域(111、1011)向外射出，每个所述出光区域(111、1011)与至少一个所述光源相对应。
PCT/CN2023/119634 2022-09-26 2023-09-19 减影台灯 WO2024067240A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202211173288.3A CN115681845A (zh) 2022-09-26 2022-09-26 减影台灯
CN202222552669.4U CN218064521U (zh) 2022-09-26 2022-09-26 减影台灯
CN202222552669.4 2022-09-26
CN202211173288.3 2022-09-26

Publications (1)

Publication Number Publication Date
WO2024067240A1 true WO2024067240A1 (zh) 2024-04-04

Family

ID=90476225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/119634 WO2024067240A1 (zh) 2022-09-26 2023-09-19 减影台灯

Country Status (1)

Country Link
WO (1) WO2024067240A1 (zh)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161941A (en) * 1998-08-24 2000-12-19 Intelligent Reasoning Systems, Inc. Light array system and method for illumination of objects imaged by imaging systems
US6582092B1 (en) * 1998-08-26 2003-06-24 Heraeus Med Gmbh Lamp for forming a low-shadow lighting field
US20090290323A1 (en) * 2008-05-20 2009-11-26 Hannu Ruuska Led light matrix equipped with impulse means
US20090318771A1 (en) * 2008-06-20 2009-12-24 Trumpf Medizin Systeme Gmbh + Co. Kg Surgical lamp field shape
JP2011076737A (ja) * 2009-09-29 2011-04-14 J Morita Tokyo Mfg Corp 歯科用照明装置
CN102458016A (zh) * 2010-10-29 2012-05-16 南京迈瑞生物医疗电子有限公司 手术灯及其术野光斑调节装置与方法
TW201516341A (zh) * 2013-10-18 2015-05-01 Keng-Sheng Chen 以導光條在被照物產生均勻光照度的方法及導光條結構
CN105658170A (zh) * 2013-07-23 2016-06-08 德尔格制造股份两合公司 用于改善照明设备的照明区域的照明的方法
CN106641744A (zh) * 2015-10-31 2017-05-10 宁波贝克照明电器有限公司 一种led灯
CN107364226A (zh) * 2016-03-30 2017-11-21 豪雅冠得股份有限公司 光照射装置
CN108332090A (zh) * 2018-03-27 2018-07-27 杭州凡义光电科技有限公司 一种台灯
CN111336422A (zh) * 2020-02-28 2020-06-26 南通大学 一种led无影灯补光装置及其补光方法
CN213542164U (zh) * 2020-09-23 2021-06-25 昕诺飞控股有限公司 扩散板、led照明模组、led台灯
CN217382846U (zh) * 2022-04-19 2022-09-06 深圳市罗化光源有限公司 一种具有照明角度可调节的台灯
CN218064521U (zh) * 2022-09-26 2022-12-16 苏州欧普照明有限公司 减影台灯
CN115681845A (zh) * 2022-09-26 2023-02-03 苏州欧普照明有限公司 减影台灯

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161941A (en) * 1998-08-24 2000-12-19 Intelligent Reasoning Systems, Inc. Light array system and method for illumination of objects imaged by imaging systems
US6582092B1 (en) * 1998-08-26 2003-06-24 Heraeus Med Gmbh Lamp for forming a low-shadow lighting field
US20090290323A1 (en) * 2008-05-20 2009-11-26 Hannu Ruuska Led light matrix equipped with impulse means
US20090318771A1 (en) * 2008-06-20 2009-12-24 Trumpf Medizin Systeme Gmbh + Co. Kg Surgical lamp field shape
JP2011076737A (ja) * 2009-09-29 2011-04-14 J Morita Tokyo Mfg Corp 歯科用照明装置
CN102458016A (zh) * 2010-10-29 2012-05-16 南京迈瑞生物医疗电子有限公司 手术灯及其术野光斑调节装置与方法
CN105658170A (zh) * 2013-07-23 2016-06-08 德尔格制造股份两合公司 用于改善照明设备的照明区域的照明的方法
TW201516341A (zh) * 2013-10-18 2015-05-01 Keng-Sheng Chen 以導光條在被照物產生均勻光照度的方法及導光條結構
CN106641744A (zh) * 2015-10-31 2017-05-10 宁波贝克照明电器有限公司 一种led灯
CN107364226A (zh) * 2016-03-30 2017-11-21 豪雅冠得股份有限公司 光照射装置
CN108332090A (zh) * 2018-03-27 2018-07-27 杭州凡义光电科技有限公司 一种台灯
CN111336422A (zh) * 2020-02-28 2020-06-26 南通大学 一种led无影灯补光装置及其补光方法
CN213542164U (zh) * 2020-09-23 2021-06-25 昕诺飞控股有限公司 扩散板、led照明模组、led台灯
CN217382846U (zh) * 2022-04-19 2022-09-06 深圳市罗化光源有限公司 一种具有照明角度可调节的台灯
CN218064521U (zh) * 2022-09-26 2022-12-16 苏州欧普照明有限公司 减影台灯
CN115681845A (zh) * 2022-09-26 2023-02-03 苏州欧普照明有限公司 减影台灯

Similar Documents

Publication Publication Date Title
CN105351822B (zh) Led黑板灯
WO2024067239A1 (zh) 减影台灯
CN218064521U (zh) 减影台灯
WO2024067240A1 (zh) 减影台灯
CN115681845A (zh) 减影台灯
CN201772343U (zh) 一种均匀无眩光台灯
TW200912195A (en) Light-spreading and energy-saving shade
CN205640442U (zh) 一种双灯板照明台灯
CN110762426A (zh) 一种防眩光黑板灯
TWM416770U (en) Optical lens and its base for lighting appliances
JPH11133425A (ja) 液晶パネル用照明装置
CN105156990A (zh) Led路灯透镜单元、模组及具有该led路灯透镜模组的路灯
CN204730118U (zh) Led路灯透镜单元、模组及具有该led路灯透镜模组的路灯
TWI671561B (zh) 曲面導光板結構
CN210637978U (zh) 一种用于黑板灯的透镜
KR101537168B1 (ko) 고 투광율을 갖는 엘이디 조명등용 눈 부심 방지 확산판 및 이를 구비한 엘이디 조명등
CN112539361B (zh) 一种高均匀度黑板灯透镜
TWI494525B (zh) 平面燈具
CN215970904U (zh) 一种led拷贝板
CN215908909U (zh) 一种台灯
CN113236991B (zh) 一种台灯
US9411079B1 (en) System to allocate luminance
WO2022183947A1 (zh) 发光装置及灯具
CN216868235U (zh) 一种发光均匀的灯体
JP7132973B2 (ja) 照明装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23870472

Country of ref document: EP

Kind code of ref document: A1