CN203909376U - Space optical lens - Google Patents

Space optical lens Download PDF

Info

Publication number
CN203909376U
CN203909376U CN201420081170.2U CN201420081170U CN203909376U CN 203909376 U CN203909376 U CN 203909376U CN 201420081170 U CN201420081170 U CN 201420081170U CN 203909376 U CN203909376 U CN 203909376U
Authority
CN
China
Prior art keywords
lens
micropore
optical
lens barrel
camera lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420081170.2U
Other languages
Chinese (zh)
Inventor
刘阳
王虎
刘杰
林上民
薛要克
刘美莹
杨少东
叶水福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Institute of Optics and Precision Mechanics of CAS
Original Assignee
Xian Institute of Optics and Precision Mechanics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201320880889 priority Critical
Priority to CN201320880889.8 priority
Application filed by Xian Institute of Optics and Precision Mechanics of CAS filed Critical Xian Institute of Optics and Precision Mechanics of CAS
Priority to CN201420081170.2U priority patent/CN203909376U/en
Application granted granted Critical
Publication of CN203909376U publication Critical patent/CN203909376U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a space optical lens. The space optical lens comprises a lens barrel, and multiple lens units arranged inside the lens barrel. The lens units are positioned and connected through press rings. Each lens unit includes a mechanical lens frame and an optical lens disposed inside the mechanical lens frame. A positioning surface of the lens barrel is equipped with at least two dismounting holes used for dismounting the lens. An inner wall of the lens barrel is provided with a ventilation groove. Each press ring is equipped with a sinking hole, an air discharge groove, and an air discharge hole. A micropore part for preventing external dust from entering the optical lens and for removing air inside the optical lens is disposed between the sinking hole in each press ring and each corresponding mechanical lens frame. The air discharge groove, the air discharge hole, the sinking hole and the micropore part penetrate each other to remove air inside the optical lens.

Description

A kind of space optics camera lens
Technical field
The utility model belongs to optical engineering field, relates to a kind of optical lens, relates in particular to a kind of space optics camera lens.
Background technology
At present, in optical engineering field, especially relevant space industry optics load, optics load is to work under vacuum environment, the air of optical lens inside is discharged gradually by the vent device designing in advance, inside and outside camera lens, be identical vacuum environment, it is poor that optical lens can not produce external and internal pressure, thereby avoid the stress deformation of the eyeglass of pressure differential generation, cause the variation of optical index, more serious make departing from of optical lens focal length, departing from of the position of focal plane that actual imaging focal plane and optics load are preset, cause the fuzzy of imaging, reduce the practical effect of optics load.At present, for optical lens is carried out to exhaust, general design is at picture frame processing air hole, interval turns processing air channel, and lens barrel inwall processing air channel, on the air channel of lens barrel, lens barrel processing vent port.But, the work such as optical system will be deposited on the ground, installs before transmitting, debugging, field test, airborne floating dust can enter optical system inside by vent port and air channel, be attached on glass mirror eyeglass, produce fifth wheel, possible etching glass mirror eyeglass, scraps even cause the camera lens degradation of optics load to use.
Therefore, current air-breather possesses ventilatory effect, but does not possess dust reduction capability, is not well positioned to meet the needs of China's space flight development.
Secondly, in order to guarantee higher optical system right alignment, generally adopt double-decker form design, by centering processing technology, make sub-picture frame and lens barrel wringing fit, by the tolerance clearance of controlling the two, improve the right alignment of whole optical system eyeglass.Picture frame adds the circularity that can produce micro-deformation effect picture frame external diameter man-hour in centering, meanwhile, during the finishing of lens barrel internal diameter, lathe diameter run-out also can have influence on the circularity of lens barrel internal diameter.
Visible, actual tolerance clearance only has the even local interference wringing fit of several micron, causes optical lens to be difficult to dismounting, conventionally adopts three kinds of dismounting modes: 1. camera lens collides with at hard interface, and sub-picture frame relies on inertia, from camera lens, splits out; 2. there being indivedual picture frames edge thread mill drilling of surplus physical dimension, with screw rod, promote picture frame, from camera lens, split out; 3. in order to protect optical mirror slip not to be scratched, take destructive cutting lens barrel mode to complete dismounting.
To dismantling mode feature in above 3, be discussed below:
Method for dismounting 1, efficiency is slow, wastes time and energy, and the dismounting cycle is long, in the process of colliding with, lens barrel surface damage, eyeglass is because inertia pushes, and internal stress is excessive, and eyeglass may break and scrap;
Method for dismounting 2, only, in particular cases using individually, can not extensively adopt, because space optics camera lens, is space product, the quality of camera lens has strict restriction, picture frame in most cases, can not be processed dismounting threaded hole, does not possess such knocked down condition;
Method for dismounting 3, is used destructive cutting lens barrel mode to dismantle, and camera lens body tube is scrapped completely, still likely damage of eyeglass in operating process, and disassembly cost is high, has a big risk.Therefore, current lens design does not have easy detachable maintaining performance.
Utility model content
In order to solve existing technical matters in background technology, the utility model proposes a kind of space optics camera lens, effectively make optical lens possess ventilatory effect, and possess dust reduction capability, and there is easy detachable maintaining performance.
Technical solution of the present utility model is: a kind of space optics camera lens, and a plurality of mirror groups that comprise lens barrel and be arranged on lens barrel inside, are located by connecting by trim ring between each mirror group; Described mirror group comprises mechanical picture frame and the optical mirror slip that is arranged on mechanical picture frame inside; Its special character is: above-mentioned lens barrel locating surface at least arranges two for dismantling the removal hole of camera lens; On above-mentioned lens barrel inwall, be provided with air channel; Counterbore, air discharge duct and vent port are set on above-mentioned trim ring; Between counterbore on above-mentioned trim ring and mechanical picture frame, be provided with for preventing that external dust from entering optical lens micropore part inner and that optical lens internal gas is discharged; Above-mentioned air discharge duct, vent port, counterbore and micropore part connect, for the gas in optical lens is discharged.
The material of above-mentioned micropore part is nanometer scale ceramics or micropore metal material.
The beneficial effects of the utility model are:
1. the utility model adopts the part of nano level micropore part system processing to be arranged on the position of the vent port of camera lens trim ring, by trim ring, tighten picture frame, make micropore part part be extruded location, because micropore part can prevent airborne dust and steam, enter camera lens inside.The micropore bore of micropore part is greater than airborne gas molecule diameter, can meet the vacuum outgas requirement of optical lens, and structural design is simple, easily realizes.
2. the utility model is processed one group of technique removal hole at camera lens mirror group locating surface, when camera lens is reprocessed dismounting, can be dismantled optical frames group is pushed and split out from lens barrel by fabrication hole, improves removal efficiency, avoids traditional dismounting risk, has saved disassembly cost.Camera lens, in normal use procedure, adopts seal approach, by the sealing of technique removal hole, does not leak whitely, does not produce fifth wheel.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model ring pressing construction schematic diagram;
Fig. 3 is the utility model exhaust preventing dust steam schematic diagram;
Fig. 4 is the utility model eyeglass dismounting schematic diagram;
Wherein 1-lens barrel, 2-mirror group, 3-trim ring, 4-micropore part, 5 lens barrel locating surfaces, 6 air channels, 7-removal hole.
Embodiment
Referring to Fig. 1-4, a kind of space optics camera lens, a plurality of mirror groups 2 that comprise lens barrel 1 and be arranged on lens barrel 1 inside, are located by connecting by trim ring 3 between each mirror group 2; Mirror group 2 comprises mechanical picture frame and the optical mirror slip that is arranged on mechanical picture frame inside; Lens barrel locating surface 5 at least arranges two for dismantling the removal hole 7 of camera lens; On lens barrel 1 inwall, be provided with air channel; Counterbore, air discharge duct and vent port are set on trim ring 3; Between counterbore on trim ring 3 and mechanical picture frame, be provided with for preventing that external dust from entering optical lens micropore part 4 inner and that optical lens internal gas is discharged; Air discharge duct, vent port, counterbore and micropore part 4 connect, for the gas in optical lens is discharged.The material of micropore part 4 is nanometer scale ceramics or micropore metal material.
Provide a kind of with dustproof, the optical lens of vacuum outgas function, comprise vent port, air discharge duct on trim ring, lens barrel internal thread relief groove, the air channel of lens barrel inwall, the air discharge duct of interval turns, its special character is: not be used on lens barrel inwall and process vent port, but on camera lens trim ring, install exhaust apparatus additional, have dustproof, the micropore part parts of vacuum outgas function.
Above-mentioned parts are that metal material or the stupalith of porous nano level made.
Above-mentioned dustproof, the optical lens of vacuum outgas function also comprises the air hole being arranged on trim ring, air discharge duct, the relief groove of lens barrel internal thread, the air channel on lens barrel inwall and interval turns air channel.Described air channel, relief groove, air discharge duct, air hole all interpenetrates.
Minimum of above-mentioned trim ring needs a vent port of processing both to meet functional design requirements.
The technique removal hole of processing, after Product Assembly completes, can adopt black sealant sealing, does not leak whitely, does not affect the parasitic light coefficient of camera lens outward appearance and optical system.When camera lens is dismantled, the technique removal hole of sealing can be opened, adopt stripping assembly by technique removal hole, optical frames group to be split out from camera lens.
Above-mentioned technique removal hole is that processing is located end face in the mirror group of camera lens, generally processes 2 above technique removal holes.
The sealing of above-mentioned technique removal hole adopts black sealant, does not leak whitely, does not produce fifth wheel.
The utility model is dustproof in order to realize, outgas function, has used micropore part.In camera lens outside, there is dust, due to the micro-pore diameter of dust diameter much larger than micropore part, outside can not being blocked in by micropore part, can not enter camera lens inside, prevented the inner generation that produces fifth wheel of camera lens, affect the use of optics load; During vacuum outgas, camera lens outside is vacuum, there is air camera lens inside, forms draught head, and gas is along the air channel of lens barrel inside, relief groove, trim ring air discharge duct through connected lens barrel internal thread, arrive at micropore part bottom surface, because the micro-pore diameter of micropore part is greater than gas molecule diameter, gas molecule can freely pass from micropore part, discharge camera lens, realize vacuum outgas function.
The utility model is in order to realize the quick detachable feature of camera lens, in camera lens location, end face is processed 1 group of a plurality of equally distributed technique removal hole, and in the normal use procedure of camera lens, technique removal hole is sealed by black sealant, and camera lens does not leak white, do not produce fifth wheel, do not affect the optical index of optics load.
Camera lens, when needs detachable maintaining, is first removed the sealant of technique removal hole; Then camera lens trim ring is dismantled; Finally use stripping assembly that camera lens is dismantled.Whole operating process is convenient and simple, has accelerated dismounting speed.
The utility model not be used in lens barrel sidewall processing air hole, but carries out outgas by the micropore part on trim ring; Described trim ring is processed with counterbore and vent port, and counterbore provides assembly space to micropore part, and vent port is concentric with counterbore, for exhaust; Described trim ring is processed with air discharge duct, and air discharge duct and counterbore connect; The lens barrel inwall of described space camera lens is processed with air channel, and camera lens inwall is not processed vent port.

Claims (2)

1. a space optics camera lens, a plurality of mirror groups that comprise lens barrel and be arranged on lens barrel inside, are located by connecting by trim ring between each mirror group; Described mirror group comprises mechanical picture frame and the optical mirror slip that is arranged on mechanical picture frame inside; It is characterized in that: the locating surface of described lens barrel at least arranges two for dismantling the removal hole of camera lens; On described lens barrel inwall, be provided with air channel; Counterbore, air discharge duct and vent port are set on described trim ring; Between counterbore on described trim ring and mechanical picture frame, be provided with for preventing that external dust from entering optical lens micropore part inner and that optical lens internal gas is discharged; Described air discharge duct, vent port, counterbore and micropore part connect, for the gas in optical lens is discharged.
2. space optics camera lens according to claim 1, is characterized in that: the material of described micropore part is nanometer scale ceramics or micropore metal material.
CN201420081170.2U 2013-12-27 2014-02-25 Space optical lens Expired - Fee Related CN203909376U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201320880889 2013-12-27
CN201320880889.8 2013-12-27
CN201420081170.2U CN203909376U (en) 2013-12-27 2014-02-25 Space optical lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420081170.2U CN203909376U (en) 2013-12-27 2014-02-25 Space optical lens

Publications (1)

Publication Number Publication Date
CN203909376U true CN203909376U (en) 2014-10-29

Family

ID=50668484

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201420081170.2U Expired - Fee Related CN203909376U (en) 2013-12-27 2014-02-25 Space optical lens
CN201410064392.8A Active CN103792641B (en) 2013-12-27 2014-02-25 A kind of space optics camera lens

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201410064392.8A Active CN103792641B (en) 2013-12-27 2014-02-25 A kind of space optics camera lens

Country Status (1)

Country Link
CN (2) CN203909376U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103792641A (en) * 2013-12-27 2014-05-14 中国科学院西安光学精密机械研究所 Space optical lens

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584207B (en) * 2017-10-25 2019-08-09 广州镭码标识设备有限公司 Laser marker and its dimming device
CN109917559A (en) * 2017-12-13 2019-06-21 长光华大基因测序设备(长春)有限公司 High-precision optical lens eccentricity adjusts structure and method
CN111103668A (en) * 2018-10-29 2020-05-05 三赢科技(深圳)有限公司 Lens module
CN109579743A (en) * 2018-11-26 2019-04-05 北京航天计量测试技术研究所 A kind of photoelectric angle measuring device applied under thermal vacuum environment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396510A (en) * 1932-05-09 1933-08-10 Edwin Elliott Improvements in or relating to lens carriers
JPS6322566B2 (en) * 1982-07-27 1988-05-12 Olympus Optical Co
US20060245071A1 (en) * 2005-04-29 2006-11-02 Agilent Technologies Lens correction element, system and method
JP4951327B2 (en) * 2006-12-14 2012-06-13 ペンタックスリコーイメージング株式会社 Lens barrel
CN201514505U (en) * 2009-09-17 2010-06-23 中国科学院西安光学精密机械研究所 Optical lens with functions of dust prevention and vacuum exhaust
JP2011090058A (en) * 2009-10-20 2011-05-06 Fujifilm Corp Lens device, and projector using the same
CN202133818U (en) * 2011-05-06 2012-02-01 昆明晶华光学有限公司 Waterproof wide-angle eyepiece for astronomical telescope
CN203909376U (en) * 2013-12-27 2014-10-29 中国科学院西安光学精密机械研究所 Space optical lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103792641A (en) * 2013-12-27 2014-05-14 中国科学院西安光学精密机械研究所 Space optical lens
CN103792641B (en) * 2013-12-27 2016-08-24 中国科学院西安光学精密机械研究所 A kind of space optics camera lens

Also Published As

Publication number Publication date
CN103792641A (en) 2014-05-14
CN103792641B (en) 2016-08-24

Similar Documents

Publication Publication Date Title
CN203909376U (en) Space optical lens
CN203752068U (en) Optical lens dismounting device
CN104476123A (en) Machining method of engine case
CN103499582B (en) A kind of thrust bearing shoe valve inspection method of damping thrust bearing
CN204556898U (en) Renovating in SC simply connected cannot blue adapter
CN103591403A (en) Combined ventilating duct
CN208849917U (en) A kind of wireless video monitoring system for highway
CN204209097U (en) A kind of insert quick change construction on days of die casting
CN202147297U (en) Vacuum automatic rubber washer cutting machine
CN104896096A (en) Shaft end gas sealing device
CN209177762U (en) A kind of equipment of processing bobbin paper deformation core
CN203061906U (en) Installation structure for machine tool apex and apex shaft
CN204450413U (en) Insert bearing stripping attachment
CN204942538U (en) A kind of axle head gas-tight sealing
CN204728000U (en) A kind of ring blower system dust guard
CN205526841U (en) Shaftless batches air chuck
CN204544974U (en) Operation roll of mill bearing mounting structure
CN205097805U (en) Glass cnc engraving and milling machine's base
CN205021271U (en) Semi -axis support burring location frock
CN201514505U (en) Optical lens with functions of dust prevention and vacuum exhaust
CN203393315U (en) Rapid overhauling structure for air door of travelling cleaner
CN103949679B (en) For processing thin-walled sleeve bracing or strutting arrangement and dismantle the instrument of this thin walled cylinder body
CN209207411U (en) A kind of shaft bearing replacer
CN203614956U (en) Combined venting pipeline
CN202985493U (en) Mounting tool and dismounting tool assisting in mounting and dismounting bearing

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20170225