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Lens and lighting device with lens

A lighting device and lens technology, which is applied in the direction of lighting devices, fixed lighting devices, components of lighting devices, etc., can solve the problems of short light propagation distance and failure to meet requirements, etc.

Active Publication Date: 2017-06-27
OPPLE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two defects in this kind of semi-direct lighting: 1. The propagation distance of the light emitted from the side is too short, and there are only bright spots around the ceiling lamp
2. When only separate direct lighting or separate ceiling lighting is required, this semi-direct lighting cannot meet the demand

Method used

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  • Lens and lighting device with lens
  • Lens and lighting device with lens
  • Lens and lighting device with lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0059] Implementation mode one: if Figure 11 As shown, the present invention provides a lens 51a, and the structure of the lens 51a and the lens 51 is basically the same. Specifically, the wall surface of the lens 51a includes a light incident surface 511a, a light exit surface 514a, a first reflective surface 512a and a second reflective surface 513a located on both sides of the light incident surface 511a, a first reflective surface 512a connecting the first reflective surface 512a and a light exit surface 514a. The connecting surface 515a and the second connecting surface 516a connecting the second reflecting surface 513a and the light emitting surface 514a.

[0060] The structural difference between the lens 51a and the lens 51 is that the second reflective surface 513a includes a plurality of sawtooth structures 5131a arranged continuously, the two ends of each sawtooth structure 5131a extend along the up and down direction of the lens 51a, and each sawtooth structure 51...

Embodiment approach 2

[0062] Implementation mode two: if Figure 12 As shown, the present invention provides a lens 51b, and the structure of the lens 51b is basically the same as that of the lens 51. Specifically, the wall surface of the lens 51b includes a light incident surface 511b, a light exit surface 514a, a first reflective surface 512b and a second reflective surface 513b located on both sides of the light incident surface 511b, and a first reflective surface 512b connecting the first reflective surface 512b and the light exit surface 514b. The connecting surface 515a and the second connecting surface 516b connecting the second reflecting surface 513b and the light emitting surface 514b.

[0063] The structural difference between the lens 51b and the lens 51 is that several continuous sawtooth structures 5141b are arranged on the light emitting surface 514b, and the two ends of each sawtooth structure 5141b extend along the extending direction of the lens 51b.

Embodiment approach 3

[0064] Implementation mode three: if Figure 13 As shown, the present invention provides a lens 51c, and the structure of the lens 51c is basically the same as that of the lens 51. Specifically, the wall surface of the lens 51c includes a light incident surface 511c, a light exit surface 514c, a first reflective surface 512c and a second reflective surface 513c located on both sides of the light incident surface 511c, and a first reflective surface connecting the first reflective surface 512c and the light exit surface 514c. The connecting surface 515c and the second connecting surface 516c connecting the second reflecting surface 513c and the light emitting surface 514c.

[0065] The structural difference between the lens 51c and the lens 51 is that the light emitting surface 514c includes a plurality of sawtooth structures 5142c arranged continuously, and the two ends of each sawtooth structure 5142c extend along the up and down direction of the lens 51c. The light emitting...

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Abstract

The invention discloses a lens and a lighting device with the lens. The lens is a stretched type lens and comprises a light incoming surface, a light emitting surface, a first reflecting surface and a second reflecting surface, wherein the first reflecting surface and the second reflecting surface are located on the two sides of the lighting incoming surface. After light rays enter the lens through the light incoming surface, at least the first part of the light rays are reflected by the second reflecting surface and then directly emitted by the light emitting surface, and the second part of the light rays are reflected to the second reflecting surface through the first reflecting surface, then reflected by the second reflecting surface and emitted by the light emitting surface. According to the lens, total reflection is used for adjusting the light path, emitted light rays are made to be large in polarization angle, and thus the emitted light rays have a long spreading distance and meet the requirement for the high uniformity. According to the lighting device, the lens is used for distributing light for a second light source assembly to achieve the purpose of ceiling washer lighting, and the lighting device has a direct type lighting function and an independent ceiling washing lighting function at the same time.

Description

technical field [0001] The invention belongs to the technical field of illumination, and in particular relates to a lens and an illumination device using the lens. Background technique [0002] Lenses, as a light distribution element, are widely used in lighting devices. In specific applications, it is necessary for the lens to have the dual characteristics of large-angle light output and uniform light output. However, the existing lens is limited by its own shape and material properties, so that the light emitted by the light source passes through the secondary light distribution of the lens, and the polarization angle is small, so that the propagation distance of the light is not far enough, and the uniformity of the light is not good. [0003] The ceiling lamp is a kind of lighting device, which generally includes a chassis, a light source assembly and a driving power supply assembly accommodated in the chassis, a light distribution element arranged outside the light sou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/04F21V5/04F21V19/00
CPCF21S8/04F21V5/04F21V19/00
Inventor 杨静
Owner OPPLE LIGHTING
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