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indicator light

A technology of indicator lights and light sources, applied in the field of indicator lights, can solve problems such as uneven illumination of coverings and loss of brightness, and achieve the effects of providing perceptibility, reducing aberrations, and saving space

Active Publication Date: 2018-01-26
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, having a diffuser placed between the light source and the transparent, usually tinted covering usually results in a loss of brightness
Giving up the diffuser makes the brightness higher, but also results in non-uniform illumination of the covering

Method used

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Embodiment Construction

[0025] figure 1 A cross-sectional view of an indicator light 100 according to the invention is shown. The indicator light 100 comprises a cylindrical housing 1 in which a light source 2 is arranged. The light source 2 can be, for example, a light bulb or a light emitting diode. The longitudinal axis of the cylindrical housing 1 is identified with reference numeral 3 . The light source 2 is located on the longitudinal axis 3 . The light emitted by the light source 2 extends in a substantially longitudinal propagation direction in the direction of the outer end 4 of the housing 1 .

[0026] A lens arrangement 5 is mounted at the outer end 4 of the housing 1 . A cover 13 is arranged on the side of the lens arrangement 5 facing away from the light source 2 . The cover 13 has a pot-like shape, and it surrounds the lens arrangement 5 . The cover 13 is latched, possibly detachably, with its side edges or its side faces 12 with the outer end 4 of the housing 1 . The lens arrang...

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PUM

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Abstract

An indicator lamp is disclosed, in particular for an electromechanical command device. The indicator lamp includes a housing and a light source, which is arranged in the housing and emits light when supplied with energy. Furthermore, a lens arrangement is provided, including a first lens unit, which is arranged in the propagation direction of the light emitted by the light source and is built such that light beams emitted by the light source exit substantially parallel from a side of the first lens unit that faces away from the light source. The lens arrangement includes a second lens, which is arranged on the side of the first lens unit that faces away from the light source and is built such that some of the light beams exiting from the first lens unit are directed with respect to the propagation direction towards a transparent side surface of the housing.

Description

technical field [0001] The invention relates to an indicator light, in particular a component of an electric motor command device. Background technique [0002] The indicator light is used to optically signal the status of the device into which the indicator light is embedded. For signaling to be easily detectable by the operator, the indicator light must have a uniform and bright illumination from the front up to a defined viewing angle, for example 60° to the longitudinal axis of the indicator light. [0003] For this purpose, the indicator light is realized, for example, with a diffuser, by means of which a uniform illumination can be achieved over the (entire) surface of the indicator light. However, the provision of a diffuser arranged between the light source and the transparent, usually colored, cover usually results in a loss of brightness. Abandoning the diffuser, while resulting in higher brightness, also results in non-uniform illumination of the covering. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V5/04F21W111/00
CPCF21V5/008F21W2111/00F21V13/04H01H13/023H01H2219/036H01H2219/06H01H2219/066
Inventor 因德里希·哈拉马伊日·瓦拉克维特·莱德尔拉德克·梅利希
Owner SIEMENS AG
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