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Focus-adjustable lighting device

A lighting device and focusing technology, which is applied to lighting devices, lighting device parts, lighting and heating equipment, etc., and can solve the problems of low zoom accuracy, unstable focusing, and inability to accurately zoom.

Inactive Publication Date: 2020-01-31
XIAMEN SANAN OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing zoom lamps have the following disadvantages: unstable focusing, low zoom precision, and inability to zoom precisely

Method used

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Embodiment Construction

[0031] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the range covered by the technical content. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention, and the change or adjustment of the relative relationship shall also be regarded as th...

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Abstract

A focus-adjustable lighting device comprises a base (100), a light source module (200), a light distribution element (400) and a focusing mechanism. The base (100) is provided with a mounting surface(120) and an annular side wall (110) surrounding the mounting surface (120); the light source module (200) is mounted on the mounting surface (120) of the base (100); the light distribution element (400) and the focusing mechanism are relatively fixed and located in the irradiation direction of the light source module (200); the focusing mechanism comprises a rotating ring (300) and a first limiting component (610); the rotating ring (300) is arranged on the inner side of the annular side wall (110) of the base (100) in a sleeving manner; and a first threaded guide groove (331) is formed in the side wall (330) of the rotating ring (300); the first limiting component (610) is fixed on the base (100), is provided with a first limiting part (612) and is matched with the first threaded guide groove (331), so that the rotating ring (330) can rotate relative to the base (100) to adjust the distance between the light distribution element (400) and the light source module (200).

Description

technical field [0001] The invention relates to the technical field of lamps, in particular to a lighting device capable of precise focus adjustment. Background technique [0002] The International Commission on Illumination (CIE Europe) stipulates that the angle between the centerline of the beam and when the light intensity is reduced to 50% of the maximum light intensity of the centerline is the beam angle (such as figure 1 Shown), which reflects the spot size and light intensity of the lamp, the same light source will produce different lighting effects when using different beam angles. In the scene where the lamps are used, according to different situations, the lamps are required to have different lighting effects. The zoom lamp produces different lighting effects by adjusting the focal length, which can meet various lighting needs in different situations in the scene where the lamp is used. [0003] The existing zoom lamps have the following disadvantages: unstable f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V14/02F21V14/06F21V19/02
CPCF21S2/00F21V14/02F21V14/06F21V19/02F21V5/048F21V7/06F21V13/04F21V14/04F21V17/02F21Y2115/10F21V5/045
Inventor 沈惜强张林川张洪彬谢潮东赵志伟
Owner XIAMEN SANAN OPTOELECTRONICS CO LTD
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