CN203535297U

CN203535297U - Optical lens with 140-degree angle of view

Info

Publication number: CN203535297U
Application number: CN201320624311.6U
Authority: CN
Inventors: 徐之海; 岑兆丰; 毛磊; 边美娟; 李晓彤; 章奕清; 李奇; 丁彩玉; 冯华君
Original assignee: YONGXIN OPTICS CO Ltd NINGBO; Zhejiang University ZJU
Current assignee: YONGXIN OPTICS CO Ltd NINGBO; Zhejiang University ZJU
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-04-09
Anticipated expiration: 2023-10-10

Abstract

The utility model relates to an optical lens with a 140-degree angle of view. The lens is composed of eight optical lenses, a lens barrel for fixing the lenses, spacer rings and pressing rings. The whole lens is based on the main lens barrel, inside which are successively arranged an outer pressing ring, a ray-proof lens, an inner pressing ring, a lens two, a lens two spacer ring, a lens three, a lens three spacer ring, a lens four, a lens four spacer ring, a lens five, an aperture spacer ring, a lens six, a lens six spacer ring, a lens seven, a lens seven spacer ring, and a lens eight. The lens uses titanium alloys as structural materials, and the total weight of the lens is only 37 g. Thus the lens is suitable for usage in spaceborne imaging systems.

Description

The optical lens that a kind of field angle is 140 °

Technical field

The utility model belongs to optical instrument technical field, and specifically the optical lens of 140 ° of a kind of field angle, is applicable to space flight optical imagery camera.

Background technology

Imaging lens is the critical component in optical imaging system, and an optical imaging system that has a feature generally has the optical lens of feature.

Summary of the invention

The utility model, for the deficiencies in the prior art, provides the optical lens of 140 ° of a kind of field angle.

The utility model is comprised of lens barrel, spacer ring and the trim ring of eight optical lenses, fixed lens, whole camera lens be take body tube as basis, is followed successively by from the object side to the image side outer trim ring, radiation proof eyeglass, interior trim ring, eyeglass two, eyeglass two spacer rings, eyeglass three, eyeglass three spacer rings, eyeglass four, eyeglass four spacer rings, eyeglass five, diaphragm spacer ring, eyeglass six, eyeglass six spacer rings, eyeglass seven, eyeglass seven spacer rings and eyeglass eight in body tube.

The field angle of this optical lens is 140 °, and lens focus is 2.7mm, and relative aperture is 1/4, and spectral range is 450nm～650nm.

There is flange face at this optical lens rear, is evenly distributed with the through hole that four diameters are 2.7mm on the position that flange face is 28.6mm at diameter, is conveniently connected with camera main-body.

The beneficial effects of the utility model: designed a field angle and be the optical lens of 140 °, lens focus is 2.7mm, and relative aperture is 1/4, spectral range: 450nm～650nm, camera lens volume is φ 34.6 * 22.4, have anti-irradiation space function.Owing to adopting titanium alloy material processing structure part, weight is only 37g.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

In figure: 1. radiation proof eyeglass; 2. eyeglass two; 3. eyeglass three; 4. eyeglass four; 5. eyeglass five; 6. eyeglass six; 7. eyeglass seven, and 8. eyeglass eight; 9. outer trim ring, 10. interior trim ring, 11. eyeglass two spacer rings, 12. eyeglass three spacer rings, 13. eyeglass four spacer rings, 14. diaphragm spacer rings; 15. eyeglass six spacer rings, 16. eyeglass seven spacer rings; 17. body tubes.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

It referring to Fig. 1, is the optical lens structural representation of 140 ° of a kind of focal length field angle of utility model.This camera lens is comprised of lens barrel, spacer ring and the trim ring of eight optical lenses, fixed lens.Whole camera lens be take body tube 17 as basis, is followed successively by from the object side to the image side outer trim ring 9, radiation proof eyeglass 1, interior trim ring 10, eyeglass 22, eyeglass two spacer rings 11, eyeglass 33, eyeglass three spacer rings 12, eyeglass 44, eyeglass four spacer rings 13, eyeglass 55, diaphragm spacer ring 14, eyeglass 66, eyeglass six spacer rings 15, eyeglass 77, eyeglass seven spacer rings 16, eyeglass 88.

The first eyeglass is wherein falcate concavees lens, and front surface and rear surface radius are respectively 19. 64 and 15.08, center thickness 1.5, and material is K9 glass; The second eyeglass is falcate concavees lens, and front surface and rear surface radius are respectively 13.092 and 4.207, center thickness 1.0, and material is ZK7, with the first eyeglass Center Gap 0.5; The 3rd eyeglass is biconcave lens, and front surface radius and rear surface are respectively-85 and 3.59, center thickness 0.8, and material is ZK1, with the second center of lens interval 3.5; The 4th eyeglass is biconvex lens, and front surface radius and rear surface are respectively 13.092 and-52.893, center thickness 2.0, and material is LAF4, with the 3rd center of lens interval 2.6; The 5th eyeglass is biconvex lens, and front surface radius is 7.379, and rear surface radius is-9.033, center thickness 3.0, and material is ZK9, with the 4th center of lens interval 1.4; The 6th eyeglass is biconvex lens, and front surface radius and rear surface are respectively 9.7 and-4.46, center thickness 1.7, and material is ZK9, with the 5th center of lens interval 0.3; The 7th eyeglass is biconcave lens, and front surface radius and rear surface are respectively-3.323 and 5.058, center thickness 0.6, and material is ZF3, with the 6th center of lens interval 0.2; The 8th eyeglass is biconvex lens, and front surface radius is 6.516, and rear surface radius is 5.42, center thickness 1.7, and material is ZK9, with the 4th center of lens interval 0.2.

The field angle of this optical lens is 140 °, and lens focus is 2.7mm, and relative aperture is 1/4, spectral range: 450nm～650nm, and camera lens volume is φ 34.6 * 22.4.First optical mirror slip of camera lens is radiation proof optical glass, can play the effect of anti-irradiation space; There is flange face at rear, and the position that is 28.6mm at diameter on flange face is evenly distributed with the through hole of four 2.7, is conveniently connected with camera main-body.

Adopt titanium alloy material processing structure part, weight is only 37g, is the small-sized optical imaging lens at a ultra-large vision field angle, is applicable to space borne imagery system and uses.

Claims

1. the optical lens of 140 ° of field angle, it is characterized in that: this camera lens is comprised of lens barrel, spacer ring and the trim ring of eight optical lenses, fixed lens, whole camera lens be take body tube as basis, is followed successively by from the object side to the image side outer trim ring, radiation proof eyeglass, interior trim ring, eyeglass two, eyeglass two spacer rings, eyeglass three, eyeglass three spacer rings, eyeglass four, eyeglass four spacer rings, eyeglass five, diaphragm spacer ring, eyeglass six, eyeglass six spacer rings, eyeglass seven, eyeglass seven spacer rings and eyeglass eight in body tube.

2. the optical lens of 140 ° of a kind of field angle according to claim 1, is characterized in that: the field angle of this optical lens is 140 °, and lens focus is 2.7mm, and relative aperture is 1/4, and spectral range is 450nm～650nm.

3. the optical lens of 140 ° of a kind of field angle according to claim 1, it is characterized in that: there is flange face at this optical lens rear, on the position that flange face is 28.6mm at diameter, be evenly distributed with the through hole that four diameters are 2.7mm, be conveniently connected with camera main-body.