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Lens and dimming system with the lens

A technology of lens and lens part, which is applied in the field of dimming system, can solve the problems that the dimming system cannot take into account stepless dimming, high power, etc., and achieve the effects of improving heat dissipation, easy control, and system stability

Active Publication Date: 2016-03-09
杭州照相机械研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, it is necessary to provide a new dimming system that can be used in monitoring systems, etc., to solve the technical problem that the existing dimming system cannot take into account stepless dimming and high power

Method used

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  • Lens and dimming system with the lens
  • Lens and dimming system with the lens
  • Lens and dimming system with the lens

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in further detail below based on the accompanying drawings. It should be understood that the specific embodiments described here are only examples, and are not intended to limit the protection scope of the present invention.

[0021] see figure 1 , a dimming system 100 provided by an embodiment of the present invention includes a plurality of light sources 10 , lenses 20 and a dimming board 30 . The light source 10 may be a light emitting diode, a discharge lamp, a fluorescent lamp or a halogen lamp and the like. Preferably, the light source 10 is a light emitting diode.

[0022] The lens 20 includes a first lens portion 21 and a plurality of second lens portions 22 . In this embodiment, the first lens part 21 and the plurality of second lens parts 22 are integrally formed. It can be understood that, in other embodiments, the lens 20 may also be formed by combining the first lens part 21 and a plurality...

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Abstract

The invention relates to a lens comprising a first lens part and a plurality of second lens parts. The first lens part is in the shape of a truncated cone, and comprises a rear end face, a front end face opposite to the rear end face, and outer side faces disposed between the front end face and the rear end face. The center of the rear end face of the first lens part is provided with a conical groove. The conical groove has side faces, and the included angle between each of the side faces and the central axis of the fist lens part is equal to the included angle between each of the outer side faces and the central axis of the first lens part. The side faces of the conical groove and the outer side faces of the first lens part are reflective surfaces. The second lens parts are formed around the conical groove in a protruding manner on the rear end face of the first lens part. Each second lens part is a collimating lens. The invention further relates to a dimming system having the lens. The dimming system has the advantages of stepless dimming and high power.

Description

technical field [0001] The invention relates to the field of optics, in particular to a lens and a dimming system with the lens. Background technique [0002] At present, mainstream monitoring systems have night vision functions, which are realized by infrared lights. In some squares, roads, wilderness and other fields, focus monitoring is required, so matching dimmable infrared lights are also required. The traditional dimmable infrared lamp is composed of several infrared lenses with different angles, through the combination of several sets of lenses to achieve far, medium and near supplementary light. The biggest problem with this solution is that the stepless dimming that perfectly matches the zoom lens cannot be realized, and the dimming is realized by 3-stage fixed light. Another solution is an aspheric lens or lens group, changing the distance between the lens and the light source to achieve dimming, this solution is stepless dimming, but the special requirements of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/00G02F1/13
CPCG02B3/00G02B2003/0093
Inventor 王赛吴登富庞宇锋
Owner 杭州照相机械研究所有限公司
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