High-resolution day and night confocal large-image-surface optical system

Abstract

The invention discloses a high-resolution day and night confocal large-image-surface optical system. The system comprises a front lens group, a diaphragm, a rear lens group, an optical filter and an imaging plane, wherein the front lens group, the diaphragm, the rear lens group, the optical filter and the imaging plane are sequentially arranged from left to right in the light incidence direction.The front lens group comprises a first lens, a second lens and a third lens. The rear lens group comprises a fourth lens, a fifth lens and a sixth lens. The focal power of the first lens, the focal power of the second lens and the focal power of fifth lens are negative. The focal power of the third lens, the focal power of the fourth lens and the focal power of six lens are positive. By adopting the above technical scheme of the invention, the optical focal length of the high-resolution day and night confocal large-image-surface optical system can be 6mm, and the aperture F# thereof can be 1.6. Meanwhile, the image plane of the system is 1 / 1.8'', and the optical total length of the system is 23.5 mm. The pixel of the system is 5 million in grade. Meanwhile, the processing manufacturabilityof the optical lens of the system is good and the product cost can be effectively reduced. The system can be widely applied to the fields of security protection, intelligent home furnishing, unmanneddriving, industrial imaging and the like.

Description

technical field [0001] The present application relates to an optical system, in particular to a high-resolution day and night confocal large image surface optical system. Background technique [0002] With the rapid development of modern technology, in many fields such as security, smart home, unmanned driving, industrial imaging, etc., its integrated system is developing more and more in terms of high precision and fast response; and an indispensable part of its integrated system The ring is the imaging system. However, the imaging system has higher and higher requirements for pixels, and the CCD / CMOS image area is getting bigger and bigger. Below 2.7”; there are basically few products with larger image areas, or the price is very high, and the procurement cost accounts for a considerable proportion of mass applications. [0003] In view of the above considerations, the present invention deliberately designs a large image surface and high-pixel optical system, and at the s...

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Problems solved by technology

[0002] With the rapid development of modern technology, in many fields such as security, smart home, unmanned driving, industrial imaging, etc., its integrated system is developing more and more in terms of high precision and fast response; and an indispensable part of its integrated system The ring is the imaging system. However, the imaging system has higher and higher requirements for pixels, and the CCD / CMOS image area is getting bigger and bigger. 2.7” or less; there are basically few products with larger image areas, or the price is high, and the purchase cost accounts for a considerable proportion of mass applications

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