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Lens and illuminating device capable of realizing asymmetrical light distribution and provided with lens

A technology of lens and light, applied in lighting devices, parts of lighting devices, lighting and heating equipment, etc., can solve problems such as difficult to obtain asymmetric light distribution effects, and achieve the effect of large-angle deflection

Active Publication Date: 2016-02-10
OPPLE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in an asymmetric light distribution lighting device, when a linear light source made of an LED lighting device is used as a light source, it is difficult to obtain the asymmetric light generated by the existing common asymmetric light distribution lighting device through the existing wall lighting reflector. Symmetrical light distribution effect

Method used

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  • Lens and illuminating device capable of realizing asymmetrical light distribution and provided with lens
  • Lens and illuminating device capable of realizing asymmetrical light distribution and provided with lens
  • Lens and illuminating device capable of realizing asymmetrical light distribution and provided with lens

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Embodiment Construction

[0027] Please refer to Figure 1 to Figure 2 As shown, the lens 100 according to the preferred embodiment of the present invention is formed as a basic lens extending in a direction parallel to the extending direction of the linear light source 5 . The lens 100 has a top and a bottom. The bottom includes an incident surface 1 and a first supporting surface 41 and a second supporting surface 42 respectively located on two sides of the incident surface 1 . The top includes an exit surface 2 and a total internal reflection surface 3 . Among them, from the cross section (front view, figure 2 ), the exit surface 2 is connected to the first support surface 41 , and the total internal reflection surface 3 is connected to the second support surface 42 . Part of the light from the linear light source 5 is refracted by the incident surface 1 and the exit surface 2 before exiting, and part of the light is refracted by the incident surface 1 to the total internal reflection surface 3 ...

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Abstract

The invention discloses a lens for a linear light source (5) and an illuminating device capable of realizing asymmetrical light distribution and provided with the lens. The bottom of the lens comprises an incident surface (1) as well as a first supporting surface (41) and a second supporting surface (42) which are located on two sides of the incident surface (1) respectively; the top comprises an outgoing surface (2) and a total internal reflection surface (3); the total internal reflection surface (3) comprises a first total internal reflection surface (31) and a second total internal reflection surface (32); a first part of light rays of the linear light source (5) is emitted to the incident surface (1) and exits after being refracted by the outgoing surface (2), a second part of light rays of the linear light source (5) is emitted to the incident surface (1) and exits after being subjected to total internal reflection by the first total internal reflection surface (31) and then being refracted by the outgoing surface (2), and a third part of light rays of the linear light source (5) is emitted to the incident surface (1) and exits after being subjected to total internal reflection by the first and second total internal reflection surfaces (31 and 32) sequentially and then being refracted by the outgoing surface (2).

Description

technical field [0001] The invention relates to a lens and an illuminating device, in particular to an asymmetrical light distribution lens and an illuminating device. Background technique [0002] Asymmetric light distribution lighting devices are used in many different application fields, such as museums, booths at trade fairs, exhibitions, stores, promotional exhibition areas, wall washing, ceiling washing, street lighting and garden lighting, etc. This type of lighting device illuminates the exhibited content, objects or walls, roads, etc. in a targeted manner, without illuminating other areas, so that targeted lighting can be performed more effectively. In today's asymmetrical light distribution lighting devices, T5 fluorescent tubes are usually used as linear light sources. The light emitted by the T5 fluorescent tube is deflected toward a predetermined direction by the wall lighting reflector fixed on the housing. [0003] However, due to the continuous improvement ...

Claims

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Application Information

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IPC IPC(8): F21V5/04F21Y101/02
Inventor 杨静
Owner OPPLE LIGHTING
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