CN205920265U

CN205920265U - 500 ten thousand pixel fisheye lens

Info

Publication number: CN205920265U
Application number: CN201620932544.6U
Authority: CN
Inventors: 叶孙华
Original assignee: ALAUD OPTICAL (XIAMEN) Co Ltd
Current assignee: ALAUD OPTICAL (XIAMEN) Co Ltd
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-02-01
Anticipated expiration: 2026-08-25

Abstract

The utility model discloses a 500 ten thousand pixel fisheye lens is inclined for instance the side has set gradually first battery of lens by the thing to and second battery of lens, first battery of lens is inclined by the thing for instance the side has set gradually first lens, second lens and third lens, and the second battery of lens is inclined by the thing for instance the side has set gradually fourth lens, diaphragm, the 5th lens, VI lenses. Set up through above -mentioned optical system, the utility model discloses the positive system aberration can effectually be repaiied to the camera lens that each lens constitutes, reduces lens system's susceptibility to obtain higher resolution power, can be with the chip of 5, 000, 000 pixels good adaptation, improved the definition of image and the homogeneity of peripheral image quality simultaneously, satisfied people's vision demand.

Description

A kind of 5,000,000 pixel fish eye lenses

Technical field

This utility model is related to field of optical lens, more particularly to a kind of 5,000,000 pixel fish eye lenses.

Background technology

In prior art, fish eye lens can only be adapted to the SD ccd of 300,000 pixels or cmos video camera, the details of image Collection not exclusively, cannot be carried out completely reducing for real image, when daily video conversation and image evidence gather, no Method meets visual demand.

Emergence with million grades of pixel high-resolution ccd, cmos imageing sensors and development, and in network shooting Machine, monitoring, the field such as vehicle-mounted gradually start to apply, and the performance of video camera system recorded existing by former simple image Details identification.

Therefore, market is badly in need of a kind of 5,000,000 pixel fish eye lenses so that the definition of video camera system improves, full The visual demand of sufficient people.

Utility model content

The purpose of this utility model is to provide a kind of 5,000,000 pixel fish eye lenses, to solve what above-mentioned prior art existed Problem, so that the definition of video camera system improves, meets the visual demand of people.

For achieving the above object, this utility model provides following scheme: this utility model provides a kind of 5,000,000 pixel fishes Glasses head, a kind of 5,000,000 pixel fish eye lenses, the first lens group is disposed with by thing side to image side, and the second lens group；

Described first lens group is disposed with the first lens, the second lens and the 3rd lens, institute by thing side to image side Stating the first lens is bent moon minus lenses, and described second lens are bent moon minus lenses, and described 3rd lens are negative-power lenses；

Described second lens group is disposed with the 4th lens, diaphragm, the 5th lens, the 6th lens by thing side to image side, Described 5th lens are positive power lens, and described 6th lens are positive power lens, and described 4th lens are positive light coke Lens.

Preferably, the focal length of described first lens group is -1.2mm～-3.8mm, and the focal length of described second lens group is 3.6mm～7.5mm.

Preferably, described first lens convex surface facing thing side, described second lens convex surface facing thing side.

Preferably, the convex surface of described 5th lens is disposed adjacent with the convex surface of described 6th lens.

Preferably, described 5th lens are balsaming lenss, and described 5th lens include the 7th lens and the 8th lens, Described 7th lens are positive power lens, and described 8th lens are negative-power lenses；Described 6th lens are balsaming lenss, Described 6th lens include the 9th lens and the tenth lens, and described 9th lens are negative-power lenses, and the described tenth is saturating Mirror is positive power lens.

Preferably, described 8th lens are bent moon minus lenses, and described 9th lens are bent moon minus lenses.

This utility model achieves following technique effect with respect to prior art: after such scheme, this practicality is new The camera lens that each lens of type are constituted, can effective update the system aberration, reduce the sensitivity of lens combination, with the higher solution of acquisition Image force, can be good fit with the chip of 5,000,000 pixels, improves the readability of image and the uniform of periphery image quality simultaneously Property, meet the visual demand of people.

Brief description

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment In required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only of the present utility model Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis These accompanying drawings obtain other accompanying drawings.

Fig. 1 is a kind of 5,000,000 fish-eye optical system schematic diagrams in utility model embodiment；

Wherein, 1- first lens group, 2- second lens group, 11- first lens, 12- second lens, 13- the 3rd lens, 21- the 4th lens, 22- diaphragm, 23- the 5th lens, 231- the 7th lens, 232- the 8th lens, 24- the 6th lens, 241- Nine lens, 242- the tenth lens.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.

The purpose of this utility model is to provide a kind of 5,000,000 pixel fish eye lenses, to solve the problems, such as prior art, The definition making video camera system improves, and meets the visual demand of people.

Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and tool Body embodiment is described in further detail to this utility model.

Embodiment one,

Refer to Fig. 1, Fig. 1 is a kind of 5,000,000 fish-eye optical system schematic diagrams in this utility model embodiment one.

The present embodiment provides a kind of 5,000,000 fish eye lenses, including the first lens group 1, the second lens group 2, the first lens 11st, the second lens 12, the 3rd lens 13, the 4th lens 21, diaphragm 22, the 5th lens 23, the 7th lens 231, the 8th lens 232nd, the 6th lens 24, the 9th lens 241, the tenth lens 242.

First lens group 1 is disposed with by thing side to image side, and the second lens group 2；

First lens group 1 is disposed with the first lens 11, the second lens 12 and the 3rd lens 13 by thing side to image side, First lens 11 are bent moon minus lenses, and the second lens 12 are bent moon minus lenses, and the 3rd lens 13 are negative-power lenses；First is saturating Mirror 11 convex surface facing thing side, the second lens 12 convex surface facing thing side.The focal length of the first lens group 1 be -1.2mm～- 3.8mm.The optical setup of above-mentioned first lens group 1, is capable of the rapid desufflation of light, the void producing when effectively reducing imaging Change phenomenon, and then improve the definition of total system.

It is saturating that second lens group 2 is disposed with the 4th lens 21, diaphragm 22, the 5th lens the 23, the 6th by thing side to image side Mirror 24, the 5th lens 23 are positive power lens, and the 6th lens 24 are positive power lens, and the 4th lens 21 are that positive light coke is saturating Mirror.The convex surface of the 5th lens 23 is disposed adjacent with the convex surface of the 6th lens 24.The focal length of the second lens group 2 be 3.6mm～ 7.5mm.

Embodiment two,

The present embodiment is further improved embodiment on the basis of embodiment one, its improve point out to be saturating by the 5th Mirror and the 6th lens are improved to balsaming lenss, particularly as follows:

5th lens 23 are balsaming lenss, and the 5th lens 23 include the 7th lens 231 and the 8th lens 232, the 7th Lens 231 are positive power lens, and the 8th lens 232 are negative-power lenses；6th lens 24 are balsaming lenss, the 6th lens 24 include the 9th lens 241 and the tenth lens 242, and the 9th lens 241 are negative-power lenses, and the tenth lens 242 are just Power lenses.8th lens are disposed adjacent with the 9th lens.Based on above-mentioned design, can effective correcting chromatic aberration, improve system The overall definition of system.

Preferably, the 8th lens 232 are bent moon minus lenses, the 9th lens 241 are bent moon minus lenses.

Apply specific case in this utility model principle of the present utility model and embodiment are set forth, above The explanation of embodiment is only intended to help understand method of the present utility model and its core concept；Simultaneously for this area one As technical staff, according to thought of the present utility model, all will change in specific embodiments and applications.To sum up Described, this specification content should not be construed as to restriction of the present utility model.

Claims

1. a kind of 5,000,000 pixel fish eye lenses are it is characterised in that be disposed with the first lens group by thing side to image side, and Second lens group；

Described first lens group is disposed with the first lens, the second lens and the 3rd lens by thing side to image side, and described One lens are bent moon minus lenses, and described second lens are bent moon minus lenses, and described 3rd lens are negative-power lenses；

Described second lens group is disposed with the 4th lens, diaphragm, the 5th lens, the 6th lens by thing side to image side, described 5th lens are positive power lens, and described 6th lens are positive power lens, and described 4th lens are positive power lens.

2. a kind of fish eye lens according to claim 1 it is characterised in that: the focal length of described first lens group be -1.2mm ～-3.8mm, the focal length of described second lens group is 3.6mm～7.5mm.

3. a kind of fish eye lens according to claim 1 it is characterised in that: described first lens convex surface facing thing side, Described second lens convex surface facing thing side.

4. a kind of fish eye lens according to claim 1 it is characterised in that: the convex surface and the described 6th of described 5th lens The convex surface of lens is disposed adjacent.

5. a kind of fish eye lens according to claim 1 it is characterised in that: described 5th lens be balsaming lenss, described 5th lens include the 7th lens and the 8th lens, and described 7th lens are positive power lens, and described 8th lens are Negative-power lenses；Described 6th lens are balsaming lenss, and described 6th lens include the 9th lens and the tenth lens, institute Stating the 9th lens is negative-power lenses, and described tenth lens are positive power lens.

6. a kind of fish eye lens according to claim 5 it is characterised in that: described 8th lens be bent moon minus lenses, institute Stating the 9th lens is bent moon minus lenses.