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Fatigue monitoring lens

A lens and fatigue technology, applied in the field of optical lenses, can solve the problems of poor application effect, low resolution, high cost, etc., and achieve the effect of simple structure, easy manufacture, and miniaturization

Pending Publication Date: 2020-02-28
信华精机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few such special lenses in the market at present, and the general volume is too large, the resolution is low, and the cost is high. It is difficult to meet the installation requirements of this type of system for the miniaturization of vehicle-mounted active safety equipment, and the resolution is low. , the application effect is poor; the cost is relatively high

Method used

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Embodiment 1

[0024] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Refer to figure 1 , A fatigue monitoring lens, comprising a stop stop, a first lens G1, a second lens G2, a third lens G3, a fourth lens G4, and a fifth lens G5. The stop, the first lens G1, the second lens The lens G2, the third lens G3, the fourth lens G4 and the fifth lens G5 are arranged in sequence from the object side to the image side; among them, the first lens G1 is a plano-convex spherical lens, and the second lens G2 is a biconcave spherical lens. The four lens G4 is a double convex spherical lens, the third lens G3 and the fifth lens G5 are both meniscus spherical lenses, the third lens G3 is convex toward the image side, and the fifth lens G5 is convex toward the object side.

[0026] Referring to Table 1, the mirror materials of the stop, the first lens G1, the...

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Abstract

The invention discloses a fatigue monitoring lens, and the lens comprises a first lens (G1), a second lens (G2), a third lens (G3), a fourth lens (G4) and a fifth lens (G5); the first lens (G1), the second lens (G2), the third lens (G3), the fourth lens (G4) and the fifth lens (G5) are sequentially arranged from an object side to an image side; the first lens (G1) is a plano-convex spherical lens,the second lens (G2) is a biconcave spherical lens, the fourth lens (G4) is a biconvex spherical lens, the third lens (G3) and the fifth lens (G5) are both meniscus spherical lenses, the third lens (G3) protrudes towards the image side, and the fifth lens (G5) protrudes towards the object side. The optical lens is used for fatigue monitoring.

Description

Technical field [0001] The invention relates to the technical field of optical lenses, in particular to a fatigue monitoring lens. Background technique [0002] With the advancement of technology and the continuous improvement of market demand, the technology of in-vehicle active safety equipment is developing rapidly and gradually becoming popular. Fatigue driving is an important part of the field of active safety, and active safety equipment is developing in the direction of miniaturization, requiring small size and resolution. High-definition lens capable of day and night confocal function. However, there are few such special lenses on the market at present, and they are generally large in size, low in resolution, and high in cost. It is difficult to meet the installation requirements of such systems for the miniaturization of in-vehicle active safety equipment, and the resolution is low. , The application effect is poor; the cost is also relatively high. Summary of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B1/00
CPCG02B13/00G02B1/00
Inventor 冷家开黄福建陈庆峰宋政娟
Owner 信华精机有限公司
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