Super star-light-level high-resolution fixed focus lens

A superstar-level, fixed-focus lens technology, applied in the lens field
CN108563000APending Publication Date: 2018-09-21DONGGUAN YUTONG OPTICAL TECH
0 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN YUTONG OPTICAL TECH
Publication Date
2018-09-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention provides a super star-light-level high-resolution fixed focus lens which comprises a first lens with convex-concave negative focal power, a second lens with biconcave negative focal power, a third lens with concave-convex positive focal power, a fourth lens with biconvex positive focal power, a fifth lens with convex-concave positive focal power, a sixth lens with convex-concave negative focal power, a seventh lens with biconcave negative focal power, an eighth lens with biconvex positive focal power, a ninth lens with biconvex positive focal power, a tenth lens with convex-concave negative focal power and an eleventh lens with biconvex positive focal power which are orderly arranged from an object side to an image side along an optical axis. 11 specially arranged lenses are adopted, the super star-light-level high-resolution fixed focus lens has a characteristic of ultra large amount of light pass, a wide angle 110 degrees of the field of view angle is supported,and at the same time, the requirements of resolution and imaging can be ensured when the lens is used in an environment of -40 DEG C to 70 DEG C.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of lens technology, in particular to a fixed-focus lens with super starlight level and high resolution. Background technique

[0002] With the increasing popularity of security monitoring facilities, the monitoring environment and screen requirements are getting higher and higher, and monitoring screens with higher pixels and greater light flux are required. At present, image sensor manufacturers have launched 1 / 1.8" large image area low-illumination image sensors, which have better light-receiving ability. However, there are almost no lenses that can match it on the market, so the corresponding ultra-low-illumination F1 is developed. 0's 1 / 1.8" lens is necessary. Contents of the invention

[0003] The invention provides a fixed-focus lens with super starlight level and high resolution, which overcomes the deficiencies in the prior art and is more compatible with a large image surface and low-illuminance image sens...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More