CN107976767A - A kind of Infrared Lens precision centring means and spotting device based on low stress clamping - Google Patents
A kind of Infrared Lens precision centring means and spotting device based on low stress clamping Download PDFInfo
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- CN107976767A CN107976767A CN201711381633.1A CN201711381633A CN107976767A CN 107976767 A CN107976767 A CN 107976767A CN 201711381633 A CN201711381633 A CN 201711381633A CN 107976767 A CN107976767 A CN 107976767A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
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Abstract
The invention discloses a kind of Infrared Lens precision centring means based on low stress clamping and spotting device, apparatus of the present invention to include：Two Dimensional Rotating mechanism (1), D translation mechanism (2), cantilever mechanism (3), position convertible lens (4) and microstress clamping and positioning device (5), wherein microstress clamping and positioning device (5) includes sucker (7) and stent (6), Two Dimensional Rotating mechanism (1) is fixed together with microstress clamping and positioning device (5) and positioned at the surface of microstress clamping and positioning device (5), D translation mechanism (2) is fixedly connected by cantilever mechanism (3) with Two Dimensional Rotating mechanism (1), positioning convertible lens (4) is bonded on the annular erecting bed in stent (6) center hole.Apparatus of the present invention are solved positions the practical problems such as inaccurate, optical material clamping is frangible using rear dress lens during double light path centrescope adjustment infrared optical system, realizes high accuracy, the high efficiency adjustment of infrared optical system.
Description
Technical field
It is particularly a kind of to be clamped based on low stress the present invention relates to a kind of Infrared Lens precision centring means and spotting device
Infrared Lens precision centring means and spotting device.
Background technology
Infrared transmission formula optical system applied to space remote sensing field is more with optical element, and variables separation is more, structure
The characteristics of complexity, image quality requirement is close to diffraction limit, there is the requirement of harshness to optics adjustment.Traditional transmitted light
System adjustment is generally using directly heart method is set, i.e., successively by the bias and tilt adjustments of each optical lens on double light path centrescope
To pre-seting within the margin of tolerance.But during such method adjustment, due to having filled blocking for lens, filled after can not observing under lens
Surface image of spherical center, thus the alignment error of lens is filled after causing, put down particularly with small-bore than optical lens, the micro of eyeglass
Shifting and inclination can cause a large amount of offsets of the centre of sphere, and adjustment precision randomness is very big, quality and efficiency it is difficult to ensure that.Simultaneously as
The infra-red material hardness that most of missile-borne optical system lens are selected is relatively low, the jackscrew aligning mode pole used during adjustment
Be also easy to produce excessive concentrated stress, cause lens chipping, cause lens scrap or the decline of Performance of Optical System.
The content of the invention
Present invention aims at provide it is a kind of based on low stress clamping Infrared Lens precision centring means and spotting device,
Solve and be blocked and clamped using the rear dress lens lower surface centre of sphere during double light path centrescope adjustment infrared optical system
The problem of journey lens easy chipping.
A kind of Infrared Lens precision centring means based on low stress clamping, including：Two Dimensional Rotating mechanism, D translation machine
Structure, cantilever mechanism, further include：Position convertible lens and microstress clamping and positioning device.
Wherein microstress clamping and positioning device includes sucker and stent, and wherein stent is hollow cylindrical-shaped structure, stent
There is annular erecting bed in center hole.Sucker is circle and is coaxially bonded in stent bottom.Wherein position convertible lens bonding
In the bracket on the annular erecting bed in heart circular hole.
Two Dimensional Rotating mechanism is that the rotating mechanism translated can be made in orthogonal both direction.Three-dimension adjusting mechanism
For mobile adjustment mechanism can be made in three, space vertical direction.Cantilever mechanism is the cantilever with rotary joint.
Two Dimensional Rotating mechanism and microstress clamping and positioning device are fixed together and are located at microstress clamping and positioning device
Surface, D translation mechanism are fixedly connected by cantilever mechanism with Two Dimensional Rotating mechanism.
More preferably, wherein positioning convertible lens upper and lower surface center point distance exhausts value that may be big.
A kind of Infrared Lens precision spotting device based on low stress clamping concretely comprises the following steps：
First step lens calibration to be installed
Lens to be installed are mounted in lens barrel in advance, and the lens upper and lower surface centre of sphere to be installed is observed on double light path centrescope turntable
Picture, adjusts the translation and inclination of centrescope turntable, makes lens axis to be installed and centrescope rotation of rotary table axis coaxial.
Second step positioning convertible lens calibration
Whole accurate centring means is put into light path on double light path centrescope, uses light path observation positioning conversion on centrescope
Image of spherical center above and below lens, passes through Two Dimensional Rotating mechanism and three-dimension adjusting mechanism adjustment positioning convertible lens optical axis and centrescope turntable
Rotating shaft is coaxial.
The clamping absorption of 3rd step microstress
Whole accurate centring means is adjusted by three-dimension adjusting mechanism to move down, and makes sucker suction in lens upper surface to be installed.
4th step offset is demarcated
By the offset a of the opposite rotating shaft of center point up and down of light path observation positioning conversion mirror on centrescope and record.
Position convertible lens upper and lower surface center point is set as D1、D2, lens upper and lower surface center point to be installed is T1、T2, lens precision to be installed
It is required that it is：Offset is less than or equal to b after adjustment, then the offset adjustment precision maximum of positioning convertible lens is calculated by following formula
For：
C=(D2‐D1)*(sin(arcsin(a/(T2‐T1))+arcsin(b/(D2‐D1))))
The lens adjustment to be installed of 5th step
The accurate centring means for being adsorbed with lens to be installed is removed into lens barrel, after completing the installation of other eyeglasses, then is moved it into
Relevant position in lens barrel.By light path observation positioning convertible lens upper and lower surface image of spherical center on centrescope, pass through Two Dimensional Rotating
Mechanism and three-dimension adjusting mechanism make two center point offset of positioning convertible lens be less than or equal to C.
6th step lens to be installed are fixed
Lens to be installed are fixed in lens barrel, remove sucker, adjustment finishes.
The dress brought is blocked in intermediate lens lower surface during apparatus of the present invention can overcome straight tube shape optical system alignment
Error is adjusted, lifts adjustment precision.
Brief description of the drawings
A kind of structure charts of the Infrared Lens precision centring means based on low stress clamping of Fig. 1；
A kind of structures of the microstress clamping and positioning device of the Infrared Lens precision centring means based on low stress clamping of Fig. 2
Figure.
1. 2. D translation mechanism of Two Dimensional Rotating mechanism, 3. cantilever mechanism 4. positioning convertible lens 5. microstress clamping
6. stent of positioner, 7. sucker
Embodiment
Embodiment 1
A kind of Infrared Lens precision centring means based on low stress clamping, including：Two Dimensional Rotating mechanism 1, D translation
Mechanism 2, cantilever mechanism 3, further include：Position convertible lens 4 and microstress clamping and positioning device 5.
Wherein microstress clamping and positioning device 5 includes sucker 7 and stent 6, and wherein stent 6 is hollow cylindrical-shaped structure,
There is annular erecting bed in 6 center hole of stent.Sucker 7 is circle and is coaxially bonded in 6 bottom of stent.Wherein positioning conversion is saturating
Mirror 4 is bonded on the annular erecting bed in 6 center hole of stent.
Two Dimensional Rotating mechanism 1 is that the rotating mechanism translated can be made in orthogonal both direction.Three-dimensional adjusting machine
Structure is that can make mobile adjustment mechanism in three, space vertical direction.Cantilever mechanism 3 is the cantilever with rotary joint.
Two Dimensional Rotating mechanism 1 and microstress clamping and positioning device 5 are fixed together and are located at microstress clamping and positioning device 5
Surface, D translation mechanism 2 is fixedly connected by cantilever mechanism 3 with Two Dimensional Rotating mechanism 1.
Wherein positioning 4 upper and lower surface center point distance of convertible lens exhausts possible big value.
Embodiment 2
A kind of Infrared Lens precision spotting device based on low stress clamping concretely comprises the following steps：
First step lens calibration to be installed
Lens to be installed are mounted in lens barrel in advance, and the lens upper and lower surface centre of sphere to be installed is observed on double light path centrescope turntable
Picture, adjusts the translation and inclination of centrescope turntable, makes lens axis to be installed and centrescope rotation of rotary table axis coaxial.
Second step positioning convertible lens 4 is demarcated
Whole accurate centring means is put into light path on double light path centrescope, uses light path observation positioning conversion on centrescope
Lens image of spherical center about 4, passes through Two Dimensional Rotating mechanism 1 and three-dimension adjusting mechanism adjustment positioning 4 optical axis of convertible lens and centrescope
Rotation of rotary table axis is coaxial.
The clamping absorption of 3rd step microstress
Whole accurate centring means is adjusted by three-dimension adjusting mechanism to move down, and sucker 7 is adsorbed in lens upper surface to be installed.
4th step offset is demarcated
By the offset a of the opposite rotating shaft of center point up and down of light path observation positioning conversion mirror on centrescope and record.
4 upper and lower surface center point of position convertible lens is set as D1、D2, lens upper and lower surface center point to be installed is T1、T2, lens essence to be installed
Spending requirement is：Offset is less than or equal to b after adjustment, then calculates the offset adjustment precision of positioning convertible lens 4 most by following formula
Big value is：
C=(D2‐D1)*(sin(arcsin(a/(T2‐T1))+arcsin(b/(D2‐D1))))
The lens adjustment to be installed of 5th step
The accurate centring means for being adsorbed with lens to be installed is removed into lens barrel, after completing the installation of other eyeglasses, then is moved it into
Relevant position in lens barrel.By light path observation positioning 4 upper and lower surface image of spherical center of convertible lens on centrescope, pass through Two Dimensional Rotating
Mechanism 1 and three-dimension adjusting mechanism make 4 liang of center point offsets of positioning convertible lens be less than or equal to C.
6th step lens to be installed are fixed
Lens to be installed are fixed in lens barrel, remove sucker 7, adjustment finishes.
Claims (3)
1. a kind of Infrared Lens precision centring means based on low stress clamping, including：Two Dimensional Rotating mechanism (1), D translation
Mechanism (2), cantilever mechanism (3), it is characterised in that further include：Position convertible lens (4) and microstress clamping and positioning device (5)；
Wherein microstress clamping and positioning device (5) includes sucker (7) and stent (6), and wherein stent (6) is hollow cylindric knot
Structure, stent (6) center hole is interior to have annular erecting bed；Sucker (7) is circle and is coaxially bonded in stent (6) bottom；Wherein
Positioning convertible lens (4) is bonded on the annular erecting bed in stent (6) center hole；
Two Dimensional Rotating mechanism (1) is that the rotating mechanism translated can be made in orthogonal both direction；Three-dimension adjusting mechanism
For mobile adjustment mechanism can be made in three, space vertical direction；Cantilever mechanism (3) is the cantilever with rotary joint；
Two Dimensional Rotating mechanism (1) and microstress clamping and positioning device (5) are fixed together and are located at microstress clamping and positioning device
(5) surface, D translation mechanism (2) are fixedly connected by cantilever mechanism (3) with Two Dimensional Rotating mechanism (1).
2. Infrared Lens precision centring means as claimed in claim 1, it is characterised in that：Wherein position on convertible lens (4)
The big value of the lower surface center point distance amount of exhausting.
3. a kind of Infrared Lens precision spotting device based on low stress clamping, it is characterised in that concretely comprise the following steps：
First step lens calibration to be installed
Lens to be installed are mounted in lens barrel in advance, and lens upper and lower surface image of spherical center to be installed is observed on double light path centrescope turntable,
The translation and inclination of centrescope turntable are adjusted, makes lens axis to be installed and centrescope rotation of rotary table axis coaxial；
Second step positioning convertible lens (4) calibration
Whole accurate centring means is put into light path on double light path centrescope, uses light path observation positioning convertible lens on centrescope
(4) image of spherical center up and down, passes through Two Dimensional Rotating mechanism (1) and three-dimension adjusting mechanism adjustment positioning convertible lens (4) optical axis and centering
Instrument rotation of rotary table axis is coaxial；
The clamping absorption of 3rd step microstress
Whole accurate centring means is adjusted by three-dimension adjusting mechanism to move down, and makes sucker (7) absorption in lens upper surface to be installed；
4th step offset is demarcated
By the offset a of the opposite rotating shaft of center point up and down of light path observation positioning conversion mirror on centrescope and record；Setting
Position convertible lens (4) upper and lower surface center point is D1、D2, lens upper and lower surface center point to be installed is T1、T2, lens precision to be installed
It is required that it is：Offset is less than or equal to b after adjustment, then calculates the offset adjustment precision of positioning convertible lens (4) most by following formula
Big value is：
C=(D2‐D1)*(sin(arcsin(a/(T2‐T1))+arcsin(b/(D2‐D1))))
The lens adjustment to be installed of 5th step
The accurate centring means for being adsorbed with lens to be installed is removed into lens barrel, after completing the installation of other eyeglasses, then moves it into lens barrel
Interior relevant position；By light path observation positioning convertible lens (4) upper and lower surface image of spherical center on centrescope, pass through Two Dimensional Rotating machine
Structure (1) and three-dimension adjusting mechanism make (4) two center point offset of positioning convertible lens be less than or equal to C；
6th step lens to be installed are fixed
Lens to be installed are fixed in lens barrel, remove sucker (7), adjustment finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711381633.1A CN107976767B (en) | 2017-12-20 | 2017-12-20 | Infrared lens precise centering device and method based on low-stress clamping |
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| CN201711381633.1A CN107976767B (en) | 2017-12-20 | 2017-12-20 | Infrared lens precise centering device and method based on low-stress clamping |
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| CN107976767A true CN107976767A (en) | 2018-05-01 |
| CN107976767B CN107976767B (en) | 2020-09-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108957782A (en) * | 2018-09-06 | 2018-12-07 | 深圳捷牛科技有限公司 | Cemented doublet integrally assembles equipment |
| CN109116507A (en) * | 2018-09-18 | 2019-01-01 | 昆明北方红外技术股份有限公司 | The bidirectional transverse alignment Method of Adjustment of Infrared Lens group |
| CN112197698A (en) * | 2020-09-23 | 2021-01-08 | 北京遥感设备研究所 | Rotary cone angle amplification servo axis measuring method and system |
| CN115016091A (en) * | 2022-08-05 | 2022-09-06 | 山西汉威激光科技股份有限公司 | Two-axis optical lens angle adjusting device |
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| CN102998767A (en) * | 2012-11-20 | 2013-03-27 | 北京空间机电研究所 | Installation and adjustment method of infrared lenses |
| WO2016148596A1 (en) * | 2015-03-17 | 2016-09-22 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" (Университет ИТМО) | Method for centering lens elements of a stacked objective lens, and lens mounts for implementing same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957782A (en) * | 2018-09-06 | 2018-12-07 | 深圳捷牛科技有限公司 | Cemented doublet integrally assembles equipment |
| CN108957782B (en) * | 2018-09-06 | 2023-11-21 | 深圳捷牛科技有限公司 | Integrated assembling equipment for glued lens |
| CN109116507A (en) * | 2018-09-18 | 2019-01-01 | 昆明北方红外技术股份有限公司 | The bidirectional transverse alignment Method of Adjustment of Infrared Lens group |
| CN112197698A (en) * | 2020-09-23 | 2021-01-08 | 北京遥感设备研究所 | Rotary cone angle amplification servo axis measuring method and system |
| CN115016091A (en) * | 2022-08-05 | 2022-09-06 | 山西汉威激光科技股份有限公司 | Two-axis optical lens angle adjusting device |
| CN115016091B (en) * | 2022-08-05 | 2022-11-08 | 山西汉威激光科技股份有限公司 | Two-axis optical lens angle adjusting device |
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