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4K lens equipped with liquid lens

A liquid lens and lens technology, which is applied in the fields of lenses, optics, instruments, etc., can solve the problems of poor relative illumination, difficulty in installation and repair, limited relative illumination of liquid lens, etc., so as to reduce pixel loss and simplify detection and repair Effect

Pending Publication Date: 2020-04-28
XIAMEN LEADING OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The mainstream light transmission of the liquid lens is far from the ideal light transmission value required by the application;
[0005] 2. The resolution level of the liquid lens is poor and cannot reach 4K resolution, resulting in a large number of pixel losses;
[0006] 3. Most liquid lenses are modified from existing lenses, and the diaphragm is placed in the middle, which makes it difficult to install and repair;
[0007] 4. Under the condition of no drive, the liquid lens cannot be independently imaged, and there are difficulties in detection;
[0008] 5. The relative illuminance of the liquid lens is limited by the liquid lens itself, and the relative illuminance is poor

Method used

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  • 4K lens equipped with liquid lens
  • 4K lens equipped with liquid lens
  • 4K lens equipped with liquid lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] This specific embodiment provides a 4K lens with a liquid lens, refer to figure 1 , which includes liquid lens 1, diaphragm 2, first lens 3, second lens 4, third lens 5, fourth lens 6, fifth lens 7 and The sixth lens 8, each of the first lens 3 to the sixth lens 8 includes an object side facing the object side and allowing the imaging light to pass through, and an image side facing the image side and allowing the imaging light to pass through. in,

[0080] The first lens 3 has a positive refractive power, the object side of the first lens 3 is convex, and the image side of the first lens 3 is concave or flat;

[0081] The second lens 4 has a positive refractive power, the object side of the second lens 4 is convex, and the image side of the second lens 4 is concave or flat;

[0082] The third lens 5 has a negative refractive power, the object side of the third lens 5 is convex, and the image side of the third lens 5 is concave;

[0083] The fourth lens 6 has a negat...

Embodiment 2

[0094] The concave-convex surface shape and refractive index of each lens in this embodiment are the same as those in the first embodiment, and only the optical parameters such as the radius of curvature of the lens surface and lens thickness are different.

[0095] In this specific embodiment, the fourth and fifth lenses are cemented to form a cemented lens.

[0096] The detailed optical data of this specific embodiment is shown in Table 3.

[0097] The detailed optical data of table 3. embodiment two:

[0098]

[0099] In this specific embodiment, the liquid lens is the EL-3-10 liquid lens of optotune company, but it is not limited to this, and it can be adapted to liquid lenses with similar and higher specifications. For the values ​​of other related conditional expressions, please refer to Figure 33 .

[0100] Please refer to the MTF curve diagram of 435nm~850nm of this specific embodiment Figure 9 , it can be seen from the figure that the resolution of the full fi...

Embodiment 3

[0102] The concave-convex surface shape and refractive index of each lens in this embodiment are the same as those in the first embodiment, and only the optical parameters such as the radius of curvature of the lens surface and lens thickness are different.

[0103] In this specific embodiment, the fourth and fifth lenses are cemented to form a cemented lens.

[0104] The detailed optical data of this specific embodiment is shown in Table 4.

[0105] The detailed optical data of table 4. embodiment three:

[0106]

[0107] In this specific embodiment, the liquid lens is the EL-3-10 liquid lens of optotune company, but it is not limited to this, and it can be adapted to liquid lenses with similar and higher specifications. For the values ​​of other related conditional expressions, please refer to Figure 33 .

[0108] Please refer to the MTF curve diagram of 435nm~850nm of this specific embodiment Figure 14 , it can be seen from the figure that the resolution of the full...

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Abstract

The invention relates to a 4K lens equipped with a liquid lens. The 4K lens sequentially comprises a liquid lens, a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side along an optical axis, wherein each of the first to sixth lenses comprises an object side surface which faces the object side and allows imaging light to pass through and an image side surface which faces the image side and allows imaging light to pass through. The 4K lens can perform independent imaging under the condition of no liquid lens, andthe 4K lens has the advantages of great simplification of detection and repair, large available light transmission and the like.

Description

technical field [0001] The invention relates to the field of optical imaging lenses, in particular to a 4K lens matched with a liquid lens. Background technique [0002] Optical lenses are essential components in machine vision systems. At present, the application of ordinary single-focus lenses can only focus on the clearest point at a fixed object distance, which has great limitations. In order to achieve adjustable object distance and change the focus position, there are currently mechanical zoom zoom lenses and liquid zoom zoom lenses. Liquid zoom zoom lenses are also called liquid lenses. Compared with mechanical zoom zoom lenses, liquid lenses have volume smaller advantage. [0003] However, there are still at least the following problems with the liquid lens in the current market: [0004] 1. The mainstream light transmission of the liquid lens is far from the ideal light transmission value required by the application; [0005] 2. The resolution level of the liqui...

Claims

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Application Information

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IPC IPC(8): G02B3/14G02B13/00
CPCG02B3/14G02B13/006G02B13/008
Inventor 郑毅池鸿洲
Owner XIAMEN LEADING OPTICS