CN104749767B - High-precision type electric control diaphragm device - Google Patents
High-precision type electric control diaphragm device Download PDFInfo
- Publication number
- CN104749767B CN104749767B CN201510112105.0A CN201510112105A CN104749767B CN 104749767 B CN104749767 B CN 104749767B CN 201510112105 A CN201510112105 A CN 201510112105A CN 104749767 B CN104749767 B CN 104749767B
- Authority
- CN
- China
- Prior art keywords
- arc
- guide rail
- slide block
- straight flange
- diaphragm
- 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
Links
Abstract
The invention provides a high-precision type electric control diaphragm device. The device comprises a double-arc diaphragm, a driving mechanism, a transmission mechanism, limiting switches, a controller, and a base of which the bottom part is provided with a circular light opening, wherein the driving mechanism is arranged on the base and connected with the controller; the transmission mechanism comprises a guider rail sliding block pair arranged on the base, and lead screws which are parallel to the guide rail sliding block pair and arranged at two sides of the circular light opening; the lead screws are arranged in the power output direction of the driving mechanism; one end of each lead screw is connected with the driving mechanism and while the other end of each lead screw is fixed to the side part of the base; the double-arc diaphragm is arranged on the guide rail sliding block pair and the lead screws, wherein the double-arc diaphragm is sheet shaped, and the contour line of the double-arc diaphragm comprises a first arc side and a second side which encircle a loudspeaker shaped opening and provided with a common end point; the arc radius of the first arc side and the second arc side is in match with the aperture of the circular light opening; the limiting switches are fixed to two ends of the guide rail sliding block pair and connected with the controller and are higher than the guide rail sliding block pair. The device is free of the maximum diaphragm aperture problem and can linearly adjust the light strength.
Description
Technical field
The invention belongs to optics regulation technology field, is related to a kind of adjustable diaphragm device, more particularly to one kind is without minimum light
Late aperture problem and the high precision electric control aperture device of light intensity Serial regulation can be realized.
Background technology
Star sensor is a kind of attitude sensor with degree of precision, and the fixed star of diverse location is to detect mesh with celestial sphere
It is marked with the operation attitude for determining aerospace craft.Star simulator is the mould of the indexs such as magnitude, spectrum, angular separation to fixed star starlight
Propose standby, complete the performance detection to star sensor and demarcation, its mainly by collimator, star tester, bandpass filter and
Light source is constituted.During actual test, bandpass filter and star tester are positioned over into the focal plane of collimator, light source irradiation rear mold
Intend infinity star chart.
The colour temperature using by increasing the quantity of bandpass filter and light source to adjust simulation star chart domestic at present, by adjusting
Section light source power come adjust simulation star chart brightness (i.e. magnitude).During actual test, adjusting the power of light source can change
The spectrum of changing light, and then cause the colour temperature for simulating star chart to change, it is inconsistent with celestial body stellar spectrum, so as to introduce test
Error.At this stage, studies in China personnel place adjustable diaphragm before bandpass filter, and by adjusting diaphragm bore adjustment light is replaced
Source power simulates the brightness of star chart to change, and then eliminates the error that light source light spectrum change is introduced.
Existing iriss mechanism is divided into manual type and electric-controlled type.The precision of manual type iriss is low, poor repeatability,
The speed of adjustable diaphragm can not be controlled.Motor, turbine and worm structure are adopted the drive mechanism of electric-controlled type iriss more,
There are problems that transmission accuracy is low, frictional force is big and service life.
And, existing iriss mechanism adjusts the clear field of optical system using rounded constrictions diaphragm, thus
The problem that cannot be completely closed is inevitably present, and diaphragm piece number is more, and the minimum aperture of the diaphragm is bigger, minimum at present
The aperture of the diaphragm can only accomplish Φ 1mm.In addition, light source currently on the market, generally using bowl lamp socket, its light distribution is similar to height
This distribution, existing iriss mechanism cannot meet the requirement of intensity of light source linear change.
The content of the invention
For the Serial regulation, the rounded constrictions diaphragm that solve that Gaussian beam cannot be carried out light intensity present in background technology
Cannot completely close thus there is the technical problem of the minimum aperture of the diaphragm, the invention provides one kind is without minimum diaphragm aperture problem
And can realize the high precision electric control aperture device of light intensity Serial regulation.
The present invention technical solution be：
The invention provides a kind of high precision electric control aperture device, it is characterized in that：Including double arc diaphragms, drive
Mechanism, drive mechanism, limit switch, controller and bottom offer the pedestal of circular light admission port；The drive mechanism is arranged
It is connected on pedestal and with controller；The drive mechanism includes the guide rail slide block pair being arranged on pedestal and and guide rail slide block
Pair is set in parallel in the leading screw of circular light admission port both sides；Leading screw along drive mechanism power output direction arrange, leading screw one end with
Drive mechanism is connected, and the other end is fixed on the sidepiece of pedestal；Described pair of arc diaphragm is arranged on guide rail slide block pair and leading screw；It is double
Arc diaphragm is laminated structure, its contour line include the first arc while and during the second arc, the first arc side and the second arc skirt are into loudspeaker
Shape opening and there is a common end；First arc while and arc radius during the second arc and circular light admission port clear aperture
Match；The drive mechanism is secondary by guide rail slide block and leading screw drives double arc diaphragms to make flare openings relative to circular logical
Optical port makees parallel tangential motion；The limit switch is fixed on the secondary two ends of guide rail slide block and is connected with controller, limit switch
The height height secondary higher than guide rail slide block.
The contour line of above-mentioned pair of arc diaphragm also includes the first straight flange, the second straight flange and the 3rd straight flange；First arc
While and common end during the second arc be located on the perpendicular bisector of the 3rd straight flange；The flare openings dorsad the 3rd straight flange；
The other end and the 3rd straight flange on the first arc side is connected by the first straight flange；The other end and the 3rd straight flange on the second arc side
It is connected by the second straight flange.
Above-mentioned first straight flange is parallel with the second straight flange；With the first arc while and common end during the second arc as origin, with mistake
Origin and perpendicular to the 3rd straight flange straight line be X-axis, with cross origin and perpendicular to X-axis straight line as Y-axis, set up rectangular coordinate
System, is X-axis positive direction near the direction of flare openings, is Y-axis positive direction near the direction of the first straight flange, then described pair of arc
The mathematical model of diaphragm is：
Wherein, R be the first arc while and arc radius during the second arc,For any point on arc and the line and X-axis of origin
The angle of positive direction, x, y be respectively the first arc while or during the second arc on any point coordinate.
Above-mentioned drive mechanism is motor；The limit switch includes being individually fixed in the first of guide rail slide block pair two ends
Photoswitch and the second photoswitch；First photoswitch and the second photoswitch are connected respectively with controller.
Above-mentioned guide rail slide block is secondary including guide rail and to be arranged on pedestal by guide rail and can freely be slided on guide rail
Slide block；The guide rail is set in parallel in the both sides of circular light admission port with leading screw；Described pair of arc diaphragm is arranged at slide block and leading screw
On；The motor drives double arc diaphragms to make flare openings make parallel relative to circular light admission port by leading screw and slide block
Tangential motion；First photoswitch and the second photoswitch are individually fixed in the two ends of guide rail, the first photoswitch with
And second the height of photoswitch be above the height of slide block.
Above-mentioned guide rail is the support type precision linear bearing guide that the depth of parallelism is 3.5 μm of walking.
Above-mentioned leading screw includes screw rod and is set on screw rod and can be along the reciprocating feed screw nut of screw rod；The screw rod
Arrange along the power output direction of motor, screw rod one end is connected with motor, and the other end is fixed on base by support member
The sidepiece of seat；Described pair of arc diaphragm is fixed on feed screw nut and slide block.
Above-mentioned leading screw and motor are integral structures.
Above-mentioned support member includes bearing block and bearing；The screw rod passes sequentially through bearing and bearing block is fixed on pedestal
Sidepiece.
The invention provides a kind of high precision electric control aperture device, it has following several respects advantage：
1st, by the flare openings of double arc diaphragms parallel to circular light admission port as tangential motion realizing clear field
Change, thus double arc diaphragms can be completely closed, and the minimum aperture of the diaphragm for efficiently solving the presence of rounded constrictions diaphragm is asked
Topic；Can realize carrying out Serial regulation to the light intensity in Gauss distribution using double arc diaphragms, solve rounded constrictions diaphragm tune
The tripping problems of the light energy rate of change existed when whole.
2nd, by the cooperation of motor, leading screw, guide rail and photoswitch, can effectively ensure that the line of double arc diaphragms
Property motion, positioning precision and stationarity, so as to ensure that whole automatically controlled aperture device is adjusted to the high accuracy of clear field.
3rd, guide rail adopts support type precision linear bearing guide, is adapted to single axial movement, and the linearity is good.
4th, leading screw and motor adopt integral structure, effectively reduce the size of whole automatically controlled aperture device, structure
It is compact.
Description of the drawings
Fig. 1 is the structural representation of the high precision electric control aperture device that the present invention is provided；
Fig. 2 is the shape figure of double arc diaphragms one preferred embodiment that the present invention is provided；
Fig. 3 is the simulation drawing that the double arc diaphragms provided using the present invention cut Gaussian beam；
It is resulting when Fig. 4 is to distinguish simulated dual arc diaphragm and rounded constrictions diaphragm cutting Gaussian beam using MATLAB
Light energy with diaphragm displacement change curve comparison diagram；
It is resulting when Fig. 5 is to distinguish simulated dual arc diaphragm and rounded constrictions diaphragm cutting Gaussian beam using MATLAB
Light energy rate of change with diaphragm displacement change curve comparison diagram；
Wherein：
The double arc diaphragms of 1-；The first arcs of 101- side；The second arcs of 102- side；The straight flanges of 103- first；The straight flanges of 104- second；105-
3rd straight flange；2- drive mechanisms；3- circle light admission ports；4- pedestals；The photoswitches of 5- first；The photoswitches of 6- second；7- guide rails；
8- slide blocks；9- screw rods；10- feed screw nuts；11- bearing blocks；12- bearings；13- cover plates；14- Gaussian beams.
Specific embodiment
Referring to Fig. 1, the invention provides a kind of high precision electric control aperture device, it includes double arc diaphragms 1, drive mechanism
2nd, drive mechanism, limit switch, controller and bottom offer the pedestal 4 of circular light admission port 3；Drive mechanism 2 is arranged at base
It is connected on seat 4 and with controller；Drive mechanism includes that the guide rail slide block being arranged on pedestal 4 is secondary and parallel with guide rail slide block pair
It is arranged at the leading screw of the both sides of circular light admission port 3；Leading screw along drive mechanism 2 power output direction arrange, leading screw one end with drive
Mechanism 2 is connected, and the other end is fixed on the sidepiece of pedestal 4；Double arc diaphragms 1 are arranged on guide rail slide block pair and leading screw；Double arcs
Diaphragm 1 is laminated structure, and its contour line includes the first arc at 101 and the second arc 102, and the first arc is at 101 and the second arc 102
Surround flare openings and have a common end；First arc 102 arc radius and circular light admission port at 101 and the second arc
3 clear aperture matches；Drive mechanism 2 is secondary by guide rail slide block and leading screw drives double arc diaphragms 1 to make flare openings phase
For circular light admission port 3 makees parallel tangential motion；Limit switch is fixed on the secondary two ends of guide rail slide block and is connected with controller, limits
The height of the bit switch height secondary higher than guide rail slide block.
Preferably, the present invention in double arc diaphragms contour line also including the first straight flange 103, the second straight flange 104 and
3rd straight flange 105；First arc, 102 common end at 101 and the second arc is located on the perpendicular bisector of the 3rd straight flange 105；
Flare openings dorsad the 3rd straight flange 105；The other end on the first arc side 101 and the 3rd straight flange 105 pass through the phase of the first straight flange 103
Even；The other end on the second arc side 102 and the 3rd straight flange 105 are connected by the second straight flange 104.
Preferably, as shown in Fig. 2 first straight flange 103 and the second straight flange of the contour line of the double arc diaphragms 1 in the present invention
104 is parallel；With the first arc at 101 and the second arc 102 common end as origin, to cross origin and perpendicular to the 3rd straight flange
105 straight line is X-axis, with cross origin and perpendicular to X-axis straight line as Y-axis, rectangular coordinate system is set up, near flare openings
Direction is X-axis positive direction, is Y-axis positive direction near the direction of the first straight flange 103, then the mathematical model of this pair of arc diaphragm is：
Wherein, R be the first arc while and arc radius during the second arc,For any point on arc and the line and X-axis of origin
The angle of positive direction, x, y be respectively the first arc while or during the second arc on any point coordinate.
In order to double arc diaphragms 1 are carried out with accurate position and speed controlling, the drive mechanism 2 in the present invention selects stepping
Motor, motor has the advantages that positioning precision is high, reproducible, reliability is high and be easy to programme-control.
In the present invention, guide rail slide block is secondary include guide rail 7 and be arranged on pedestal 4 by guide rail 7 and can on guide rail 7 oneself
Such as the slide block 8 for sliding；Guide rail 7 is set in parallel in the both sides of circular light admission port 3 with leading screw；Double arc diaphragms 1 are arranged at the He of slide block 8
On leading screw；Motor drives double arc diaphragms 1 flare openings is made relative to circular light admission port 3 by leading screw and slide block 8
Parallel tangential motion.
Further, the guide rail 7 in the present invention is led from the support type precision linear bearing that the walking depth of parallelism is 3.5 μm
Rail, its suitable single axial movement, the linearity is good, is fixed on pedestal 4 by screw.
In the present invention, limit switch includes being individually fixed in first photoswitch 5 and the second photoswitch at the two ends of guide rail 7
6；First photoswitch and the second photoswitch are connected respectively with controller；In order to effectively limit double arc diaphragms 1
The height of position, the first photoswitch 5 and the second photoswitch 6 is above the height of slide block 8.Photoswitch has concord speed
Hurry up, it is high precision, small volume, life-span length, lightweight and the advantages of do not affected by magnetic field and concussion.
In the present invention, leading screw includes screw rod 9 and is set on screw rod 9 and can be along the reciprocating feed screw nut of screw rod
10；Screw rod 9 is arranged along the power output direction of motor, and screw rod one end is connected with motor, and the other end passes sequentially through axle
Hold 12 and bearing block 11 be fixed on the sidepiece of pedestal 4；Double arc diaphragms 1 are fixed on feed screw nut 10 and slide block 8.
In order to reduce the size of whole high precision electric control aperture device so as to compact conformation, by leading screw and step in the present invention
Stepper motor is designed to integral structure.
The high precision electric control aperture device that the present invention is provided also includes being fastened on pedestal 4 to protect whole high precision electro
The cover plate 13 of each component in control aperture device inside.
The present invention the course of work be：Leading screw motor receives the signal of controller and drives leading screw to rotate, double arc light
Door screen 1 is moved with feed screw nut 10 and slide block 8, the movable change for completing clear field of double arc diaphragms 1, and then complete
The control of light source radiant energy flux in pairs.
Below, double arc diaphragms that the present invention is provided are contrasted with existing rounded constrictions diaphragm：
Assume Gaussian beam radius and be 5mm/ steps for the rate of change of 25mm, double arc diaphragms and rounded constrictions diaphragm,
Amplitude A=100 of Gaussian beam spatial amplitude distribution, the ω with a tight waist of Gaussian beam0=80.Using MATLAB simulated dual arc light
Door screen cutting Gaussian beam 14 (as shown in Figure 3) and rounded constrictions diaphragm cutting Gaussian beam 14, obtain light energy and move with diaphragm
The curve linear relationship (as shown in Figure 4) of distance.As shown in Figure 4, double arc diaphragms are 68.3mm by standard-sized sheet to fully closed stroke, circular
It is 49mm to shrink diaphragm by standard-sized sheet to fully closed stroke (its minimum aperture of the diaphragm can only accomplish Φ 1mm).
From Fig. 4 and Fig. 5, due to there is minimum-value aperture, rounded constrictions diaphragm can not possibly completely be closed, finally can
The light energy of residual 1.3%；Because the quantity of rounded constrictions diaphragm is limited, rounded constrictions diaphragm cutting Gaussian beam process is approximate
For polygon contraction process, inevitably there is the bounce of light energy rate of change, and light energy rate of change maximum is
1.9%.
For double arc diaphragms that the present invention is provided, from Fig. 4 and Fig. 5, light energy with the movement of double arc diaphragms away from
From linear change, light energy rate of change maximum is 1.4%, and there are no the tripping problems of light energy rate of change.Cause
This, double arc diaphragms that the present invention is provided can with the minimum aperture of the diaphragm of effectively solving and the problem of bowl lamp Intensity of Gaussian distribution, and
And can realize the Serial regulation of light intensity.
In the present invention, by the flare openings of double arc diaphragms 1 parallel to circular light admission port 3 as tangential motion realizing
The change of clear field, thus double arc diaphragms can be completely closed, and efficiently solve the minimum light of rounded constrictions diaphragm presence
Late aperture problem；And, can realize carrying out Serial regulation to the light intensity in Gauss distribution using double arc diaphragms, solve circle
Shape shrinks the tripping problems of the light energy rate of change existed when diaphragm is adjusted.
In addition, by the cooperation of motor, leading screw, guide rail and photoswitch, can effectively ensure that double arc light
The linear movement of door screen, positioning precision and stationarity, so as to ensure that whole automatically controlled aperture device is adjusted to the high accuracy of clear field.
Claims (7)
1. a kind of high precision electric control aperture device, it is characterised in that：Including double arc diaphragms, drive mechanism, drive mechanism, spacing
Switch, controller and bottom offer the pedestal of circular light admission port；The drive mechanism is arranged on pedestal and and controller
It is connected；The drive mechanism includes that the guide rail slide block being arranged on pedestal is secondary and is set in parallel in guide rail slide block pair circular logical
The leading screw of optical port both sides；Leading screw is arranged along the power output direction of drive mechanism, and leading screw one end is connected with drive mechanism, the other end
It is fixed on the sidepiece of pedestal；Described pair of arc diaphragm is arranged on guide rail slide block pair and leading screw；Double arc diaphragms are laminated structure,
Its contour line include the first arc while and during the second arc, the first arc side and the second arc skirt are into flare openings and have a common end
Point；First arc while and arc radius during the second arc match with the clear aperture of circular light admission port；The driving machine
Structure drives double arc diaphragms to make flare openings make parallel tangential fortune relative to circular light admission port by the way that guide rail slide block is secondary with leading screw
It is dynamic；The limit switch is fixed on the secondary two ends of guide rail slide block and is connected with controller, and the height of limit switch is slided higher than guide rail
The secondary height of block；
The contour line of described pair of arc diaphragm also includes the first straight flange, the second straight flange and the 3rd straight flange；The first arc side and
The common end on the second arc side is located on the perpendicular bisector of the 3rd straight flange；The flare openings dorsad the 3rd straight flange；It is described
The other end and the 3rd straight flange on the first arc side is connected by the first straight flange；The other end and the 3rd straight flange on the second arc side passes through
Second straight flange is connected；
First straight flange is parallel with the second straight flange；With the first arc while and common end during the second arc as origin, to cross origin
And perpendicular to the 3rd straight flange straight line be X-axis, with cross origin and perpendicular to X-axis straight line as Y-axis, set up rectangular coordinate system, lean on
The direction of nearly flare openings is X-axis positive direction, is Y-axis positive direction near the direction of the first straight flange, then described pair of arc diaphragm
Mathematical model be：
Wherein, R be the first arc while and arc radius during the second arc,For any point on arc and origin line and X-axis just
The angle in direction, x, y be respectively the first arc while or during the second arc on any point coordinate.
2. high precision electric control aperture device according to claim 1, it is characterised in that：The drive mechanism is stepping electricity
Machine；The limit switch includes being individually fixed in first photoswitch and the second photoswitch at guide rail slide block pair two ends；It is described
First photoswitch and the second photoswitch are connected respectively with controller.
3. high precision electric control aperture device according to claim 2, it is characterised in that：The guide rail slide block is secondary to include guide rail
And the slide block that be arranged on pedestal by guide rail and can freely be slided on guide rail；The guide rail is set in parallel in circle with leading screw
The both sides of shape light admission port；Described pair of arc diaphragm is arranged on slide block and leading screw；The motor is by leading screw and slide block band
Dynamic double arc diaphragms make flare openings make parallel tangential motion relative to circular light admission port；First photoswitch and
Two photoswitches are individually fixed in the height at the two ends of guide rail, the first photoswitch and the second photoswitch and are above slide block
Highly.
4. high precision electric control aperture device according to claim 3, it is characterised in that：The guide rail is that the walking depth of parallelism is
3.5 μm of support type precision linear bearing guide.
5. high precision electric control aperture device according to claim 4, it is characterised in that：The leading screw includes screw rod and set
Loaded on screw rod and can be along the reciprocating feed screw nut of screw rod；The screw rod is arranged along the power output direction of motor,
Screw rod one end is connected with motor, and the other end is fixed on the sidepiece of pedestal by support member；Described pair of arc diaphragm is fixed on
On feed screw nut and slide block.
6. high precision electric control aperture device according to claim 5, it is characterised in that：The leading screw and motor are one
Body formula structure.
7. high precision electric control aperture device according to claim 6, it is characterised in that：The support member include bearing block with
And bearing；The screw rod passes sequentially through bearing and bearing block is fixed on the sidepiece of pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112105.0A CN104749767B (en) | 2015-03-13 | 2015-03-13 | High-precision type electric control diaphragm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112105.0A CN104749767B (en) | 2015-03-13 | 2015-03-13 | High-precision type electric control diaphragm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749767A CN104749767A (en) | 2015-07-01 |
| CN104749767B true CN104749767B (en) | 2017-05-03 |
Family
ID=53589713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510112105.0A Expired - Fee Related CN104749767B (en) | 2015-03-13 | 2015-03-13 | High-precision type electric control diaphragm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749767B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607241B (en) * | 2016-02-05 | 2018-08-03 | 中国科学院西安光学精密机械研究所 | A kind of optical system of horizontal solar telescope |
| CN108957734B (en) * | 2018-06-04 | 2021-03-19 | 中国科学院合肥物质科学研究院 | High-temperature-resistant electric diaphragm with large dynamic adjustment range |
| CN109141404B (en) * | 2018-08-14 | 2021-09-17 | 哈尔滨工业大学 | Opening-size-adjustable star sensor surrounding spherical stray light suppression system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078853A (en) * | 2006-05-23 | 2007-11-28 | 佳能株式会社 | Optical apparatus |
| CN101819370A (en) * | 2009-02-27 | 2010-09-01 | 索尼公司 | Light amount control apparatus, lens barrel, image pick-up device and control method |
| CN203164511U (en) * | 2013-02-27 | 2013-08-28 | 中国工程物理研究院应用电子学研究所 | Electrically adjustable diaphragm |
| CN203849486U (en) * | 2014-01-16 | 2014-09-24 | 凯迈（洛阳）测控有限公司 | Electric adjustable-diaphragm mechanism |
| CN204515246U (en) * | 2015-03-13 | 2015-07-29 | 中国科学院西安光学精密机械研究所 | High precision electric control aperture device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007034121A (en) * | 2005-07-29 | 2007-02-08 | Fujifilm Holdings Corp | Optical controller, optical control element, and photographing device |
| JP5173979B2 (en) * | 2009-10-20 | 2013-04-03 | キヤノン株式会社 | Aperture device, lens barrel having the same, and imaging device |
-
2015
- 2015-03-13 CN CN201510112105.0A patent/CN104749767B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078853A (en) * | 2006-05-23 | 2007-11-28 | 佳能株式会社 | Optical apparatus |
| CN101819370A (en) * | 2009-02-27 | 2010-09-01 | 索尼公司 | Light amount control apparatus, lens barrel, image pick-up device and control method |
| CN203164511U (en) * | 2013-02-27 | 2013-08-28 | 中国工程物理研究院应用电子学研究所 | Electrically adjustable diaphragm |
| CN203849486U (en) * | 2014-01-16 | 2014-09-24 | 凯迈（洛阳）测控有限公司 | Electric adjustable-diaphragm mechanism |
| CN204515246U (en) * | 2015-03-13 | 2015-07-29 | 中国科学院西安光学精密机械研究所 | High precision electric control aperture device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104749767A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749767B (en) | High-precision type electric control diaphragm device | |
| JP6030243B2 (en) | LED lamp focus adjustment structure | |
| CN104090289A (en) | X-ray system | |
| CN104101892A (en) | X-ray and guide rail parallel system | |
| CN205986780U (en) | Multijunction solar cell performance parameters test system | |
| CN206178326U (en) | Camera lens micromatic setting, camera lens adjustment module and projection equipment | |
| CN105737029B (en) | A kind of solar simulator | |
| CN203687768U (en) | Calibrating and aiming detection platform for optical sight | |
| CN202995126U (en) | Apparatus capable of realizing position adjustment of light beam expander | |
| CN204515246U (en) | High precision electric control aperture device | |
| CN106842495B (en) | A kind of large telescope primary mirror chamber system mounting and positioning device and method | |
| CN104091748A (en) | Ionization chamber adjusting device | |
| CN111443450B (en) | Precise optical lens frame capable of adjusting azimuth angle of laser beam | |
| CN106643799B (en) | Target wheel type star point plate focusing device easy to assemble and integrate | |
| CN111800567A (en) | Compatible full angle camera focusing light source structure | |
| CN102854599A (en) | Two-degree-of-freedom fine moving and tuning adjusting rack | |
| CN216180348U (en) | Adjustable positioning device for wedge-shaped glass processing | |
| CN109557950A (en) | A kind of 3 d water tank horizontal plane self-level(l)ing device and method | |
| CN211234920U (en) | Convex lens back focal length detection device | |
| CN104570375A (en) | Double-beam parallelization and collimation regulating device | |
| CN203687894U (en) | Position adjusting device of optical calibration appliance | |
| CN103759836A (en) | Aperture device with infrared target simulation function | |
| CN209054286U (en) | A kind of industrial camera mounting bracket | |
| CN219737871U (en) | Pretreatment equipment for imaging experiment appliance | |
| CN215374444U (en) | Leveling centering device and lens MTF test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| 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: 20170503 Termination date: 20190313 |