CN106054296A - Duty ratio continuous adjusting raster and duty ratio continuous adjusting method - Google Patents
Duty ratio continuous adjusting raster and duty ratio continuous adjusting method Download PDFInfo
- Publication number
- CN106054296A CN106054296A CN201610585540.XA CN201610585540A CN106054296A CN 106054296 A CN106054296 A CN 106054296A CN 201610585540 A CN201610585540 A CN 201610585540A CN 106054296 A CN106054296 A CN 106054296A
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- China
- Prior art keywords
- rectangular raster
- raster
- dutycycle
- grating
- duty ratio
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/44—Grating systems; Zone plate systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1828—Diffraction gratings having means for producing variable diffraction
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention provides a duty ratio continuous adjusting raster and a duty ratio continuous adjusting method, belonging to the optics and precision apparatus fields. The duty ratio continuous adjusting raster comprises a first rectangular raster and a second rectangular raster arranged up and down, having the same period and a duty ratio of 50%; and the first rectangular raster and the second rectangular raster perform reverse direction motion through the adjusting of a raster adjusting mechanism, and a power transmission device installed on a pedestal supplies power to the raster adjusting mechanism. The duty ratio continuous adjusting method controls the rotation of the motor in the power transmission device to drive the rotation of a transfer line so as to drive the rotation of a swivel, and the extension end of the swivel drives the reverse direction motion of the first rectangular raster and the second rectangular raster to realize duty ratio continuous adjusting. Through the structure, the duty ratio continuous adjusting raster and the duty ratio continuous adjusting method can control the rotation of the motor at any time according to the real requirement to perform the reverse direction motion of the first rectangular raster and the second rectangular raster so as to realize the duty ratio continuous real-time adjusting.
Description
Technical field
One dutycycle of the present invention continuously adjusts grating and dutycycle method for continuously adjusting belongs to optics, precision instrument neck
Territory.
Background technology
The optics being made up of a large amount of wide equally spaced parallel slits is referred to as grating.Conventional grating is at sheet glass
On carve a large amount of parallel scores and make, indentation is lightproof part, and the smooth part between two indentations can be equivalent to narrow with printing opacity
Slot array.Although grating structure is uncomplicated, but in numerous optical instruments, it is respectively provided with extensively application, also plays crucial work
With.
The grating carved on the glass sheet, dutycycle is fixed value, if it is possible to change as required in application process
Variable duty cycle, then this grating will have wider application, plays bigger effect, plays more revolutionary impact.
But, the most do not find the grating that dutycycle can continuously adjust.
Summary of the invention
For the problems referred to above, the invention discloses a kind of dutycycle and continuously adjust grating and dutycycle method for continuously adjusting,
It is capable of the technical purpose that dutycycle continuously adjusts.
A kind of dutycycle continuously adjusts grating, identical including direction setting up and down, the cycle is identical, dutycycle is 50%
The first rectangular raster and the second rectangular raster, described first rectangular raster and the second rectangular raster at the tune of grating governor motion
The lower adverse movement of joint, described grating governor motion is provided power by the power transmission being arranged on base；
Described first rectangular raster is arranged between two the first supports by linear bearing, two described the first supports
Being symmetrically mounted on base, described linear bearing is able to ensure that the first rectangular raster horizontal in-plane moving at level altitude；The
One rectangular raster bottom symmetrical arranges two first drive links with groove；Described second rectangular raster is pacified by linear bearing
Being contained between two the second supports, two described the second supports are symmetrically mounted on base, and described linear bearing is able to ensure that
Second rectangular raster is at the horizontal in-plane moving of level altitude；Second rectangular raster bottom symmetrical arranges two and has the of groove
Two drive links；
Described grating governor motion is made up of symmetrically arranged two clamp mechanisms, and each clamp mechanism includes that two are coaxially disposed
Turn, described in turn by be arranged on base turn support support；Two turn between connected by rotating shaft, each turn
Outside be provided with external part, be positioned at same clamp mechanism two turn on two external parts be arranged on diameter of section of turning
Two ends, the external part being positioned at outside inserts in the groove of the first drive link, and the external part being positioned at inner side inserts the second drive link
In groove；
Described power transmission includes motor and the drive link rotated with motor coaxle, and described drive link is by being arranged on the end
Transmission bracket on seat supports, and drive link is connected with shaft bearing or belt connects, and imparts power to rotating shaft.
Above-mentioned dutycycle continuously adjusts grating,
Turning and supported by the support of turning being arranged on base, concrete structure is: bearing between support of turning and turn
Connecting, turn and bearing inner ring interference fit, support of turning is fixing with outer race to be connected；
Drive link is supported by the transmission bracket being arranged on base, and concrete structure is: between drive link and transmission bracket
Bearing connects, drive link and bearing inner ring interference fit, and transmission bracket is fixing with outer race to be connected.
Above dutycycle continuously adjusts grating, is additionally provided with light source below the second rectangular raster.
Between the second rectangular raster and light source, it is additionally provided with diffusing transmission plate.
A kind of above-mentioned dutycycle continuously adjust on grating realize dutycycle method for continuously adjusting, by electric machine rotation,
Drive drive rod rotation, and then drive rotation of turning, the external part on turning drive the first rectangular raster and the second rectangular light
Grid adverse movement, it is achieved dutycycle continuously adjusts.
Above-mentioned dutycycle method for continuously adjusting, comprises the following steps:
Step a, adjust the first rectangular raster and the second rectangular raster
Same clamp mechanism two turn on two external parts in the case of being positioned at same perpendicular, make the first rectangle
Grating and the second rectangular raster overlap；
Step b, according to equation below, adjust dutycycle
Wherein, k is dutycycle, and d is the first rectangular raster and the cycle of the second rectangular raster, and l is same clamp mechanism two
The wheelbase of two external parts on turning, α is the corner of motor, and mod () is the computing that rems.
Beneficial effect: under the structure of the present invention, it is only necessary to control motor and rotate, it becomes possible to make the first rectangular raster and the
Two rectangular raster adverse movements, and then realize duty cycle adjustment；Simultaneously as the first rectangular raster and the fortune of the second rectangular raster
Dynamic track is continuous print, and therefore duty cycle adjustment is also continuous print；And during using, due to can be according to actual needs
Controlling motor at any time to rotate, therefore duty cycle adjustment is real-time；In sum, the present invention has dutycycle and regulates the most in real time
Technical advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation that dutycycle of the present invention continuously adjusts grating specific embodiment one.
Fig. 2 is the structural representation that dutycycle of the present invention continuously adjusts grating specific embodiment three.
Fig. 3 is the structural representation that dutycycle of the present invention continuously adjusts grating specific embodiment four.
In figure: 11 first rectangular rasters, 12 second rectangular rasters, 13 first supports, 14 second supports, 15 first transmissions
Bar, 16 second drive links, 2 grating governor motions, 21 turn, 22 rotating shafts, 23 external parts, 24 turn support, 3 power transmission dresses
Put, 31 motors, 32 drive links, 33 transmission bracket, 4 bases, 5 light sources, 6 diffusing transmission plates.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in further detail.
Specific embodiment one
The present embodiment is the embodiment that dutycycle continuously adjusts grating.
The dutycycle of the present embodiment continuously adjusts grating, and structural representation is as shown in Figure 1.This dutycycle continuously adjusts grating
Identical including direction setting up and down, the cycle is identical, dutycycle be 50% the first rectangular raster 11 and the second rectangular raster
12, described first rectangular raster 11 and second rectangular raster 12 adverse movement under the regulation of grating governor motion 2, described grating
Governor motion 2 is provided power by the power transmission 3 being arranged on base 4；
Described first rectangular raster 11 is arranged between two the first supports 13 by linear bearing, described two first
Support 13 is symmetrically mounted on base 4, and described linear bearing is able to ensure that first rectangular raster 11 horizontal plane at level altitude
Interior motion；First rectangular raster 11 bottom symmetrical arranges two first drive links 15 with groove；Described second rectangular raster
12 are arranged between two the second supports 14 by linear bearing, and two described the second supports 14 are symmetrically mounted on base 4,
Described linear bearing is able to ensure that the second rectangular raster 12 horizontal in-plane moving at level altitude；Bottom second rectangular raster 12
It is symmetrical arranged two second drive links 16 with groove；
Described grating governor motion 2 is made up of symmetrically arranged two clamp mechanisms, and each clamp mechanism includes that two coaxially set
That puts turns 21, described in turn and 21 supported by the support 24 of turning being arranged on base 4；Turn between 21 by rotating shaft 22 for two
Connect, each turn 21 outside be provided with external part 23, be positioned at two external parts that same clamp mechanism two is turned on 21
23 two ends being arranged on 21 diameter of sections of turning, the external part 23 being positioned at outside inserts in the groove of the first drive link 15, is positioned at
The external part 23 of inner side inserts in the groove of the second drive link 16；
Described power transmission 3 includes motor 31 and the drive link 32 with motor 31 coaxial rotating, described drive link 32
Being supported by the transmission bracket 33 being arranged on base 4, drive link 32 is connected with rotating shaft 22 bearing or belt connects, and is transmitted by power
To rotating shaft 22.
Specific embodiment two
The present embodiment is the embodiment that dutycycle continuously adjusts grating.
The dutycycle of the present embodiment continuously adjusts grating, on the basis of specific embodiment one, further defines that
Turning and 21 supported by the support 24 of turning being arranged on base 4, concrete structure is: turn 21 with support 24 of turning
Between bearing connect, turn and 21 fix is connected with bearing inner ring interference fit, turn support 24 and outer race；
Drive link 32 is supported by the transmission bracket 33 being arranged on base 4, and concrete structure is: drive link 32 props up with transmission
Between frame 33, bearing connects, drive link 32 and bearing inner ring interference fit, and transmission bracket 33 is fixing with outer race to be connected.
Specific embodiment three
The present embodiment is the embodiment that dutycycle continuously adjusts grating.
The dutycycle of the present embodiment continuously adjusts grating, and structural representation is as in figure 2 it is shown, this dutycycle continuously adjusts light
Grid, on the basis of specific embodiment one, limit further below the second rectangular raster 12 and are additionally provided with light source 5.
This structure designs so that dutycycle of the present invention continuously adjusts grating and can directly coordinate light source 5 to use, it is not necessary to
Additional light source.
Specific embodiment four
The present embodiment is the embodiment that dutycycle continuously adjusts grating.
The dutycycle of the present embodiment continuously adjusts grating, and structural representation is as it is shown on figure 3, this dutycycle continuously adjusts light
Grid, on the basis of specific embodiment three, are limited between the second rectangular raster 12 and light source 5 further, are additionally provided with unrestrained saturating
Penetrate plate 6.
Light source 5 sends light beam, after diffusing transmission plate 6, then is irradiated on the second rectangular raster 12, and this structure designs,
The illumination light that can make the second rectangular raster 12 is more uniform, it is possible to solve to reduce asking of experiment effect because illumination light is uneven
Topic.
Specific embodiment five
The present embodiment is the embodiment of dutycycle method for continuously adjusting.
The dutycycle method for continuously adjusting of the present embodiment, is rotated by motor 31, drives drive link 32 to rotate, and then drives
Turn 21 rotations, the external part 23 turned on 21 drive the first rectangular raster 11 and the second rectangular raster 12 adverse movement, real
Existing dutycycle continuously adjusts.
Specific embodiment six
The present embodiment is the embodiment of dutycycle method for continuously adjusting.
The dutycycle method for continuously adjusting of the present embodiment, on the basis of specific embodiment five, limit further include with
Lower step:
Step a, adjust the first rectangular raster 11 and the second rectangular raster 12
Same clamp mechanism two two external parts 23 on 21 of turning, in the case of being positioned at same perpendicular, make first
Rectangular raster 11 and the second rectangular raster 12 overlap；
Step b, according to equation below, adjust dutycycle
Wherein, k is dutycycle, and d was the first rectangular raster 11 and cycle of the second rectangular raster 12, and l is same clamp mechanism
The wheelbase of two two external parts 23 turned on 21, α is the corner of motor 31, and mod () is the computing that rems.
The dutycycle method for continuously adjusting of the present embodiment, continuously adjusts grating based on dutycycle of the present invention, gives duty
Corresponding relation between ratio and motor 31 corner, experiment base has been established in the concrete operations for dutycycle method for continuously adjusting of the present invention
Plinth.
Claims (5)
1. a dutycycle continuously adjusts grating, it is characterised in that include that direction setting up and down is identical, the cycle is identical, duty
Ratio is the first rectangular raster (11) and second rectangular raster (12) of 50%, described first rectangular raster (11) and the second rectangle
Grating (12) adverse movement under the regulation of grating governor motion (2), described grating governor motion (2) is by being arranged on base (4)
On power transmission (3) provide power；
Described first rectangular raster (11) is arranged between two the first supports (13) by linear bearing, described two first
Support (13) is symmetrically mounted on base (4), and described linear bearing is able to ensure that the first rectangular raster (11) is at level altitude
Horizontal in-plane moving；First rectangular raster (11) bottom symmetrical arranges two first drive links (15) with groove；Described
Two rectangular rasters (12) are arranged between two the second supports (14) by linear bearing, and two described the second supports (14) are right
Claiming to be arranged on base (4), described linear bearing is able to ensure that the second rectangular raster (12) is transported in the horizontal plane of level altitude
Dynamic；Second rectangular raster (12) bottom symmetrical arranges two second drive links (16) with groove；
Described grating governor motion (2) is made up of symmetrically arranged two clamp mechanisms, and each clamp mechanism includes that two are coaxially disposed
Turn (21), described in turn (21) supported by the support of turning (24) that is arranged on base (4)；Turn logical between (21) for two
Crossing rotating shaft (22) to connect, each outside turning (21) is provided with external part (23), is positioned at same clamp mechanism two and turns
(21) two external parts (23) on are arranged on the two ends of (21) diameter of section of turning, and the external part (23) being positioned at outside inserts the
In the groove of one drive link (15), the external part (23) being positioned at inner side inserts in the groove of the second drive link (16)；
Described power transmission (3) includes motor (31) and the drive link (32) with motor (31) coaxial rotating, described transmission
Bar (32) is supported by the transmission bracket (33) being arranged on base (4), and drive link (32) is connected or belt with rotating shaft (22) bearing
Connect, impart power to rotating shaft (22).
Dutycycle the most according to claim 1 continuously adjusts grating,
It is characterized in that,
Turn (21) supported by the support of turning (24) that is arranged on base (4), concrete structure is: turns (21) and turns
Between frame (24), bearing connects, turn (21) and bearing inner ring interference fit, and support of turning (24) is fixing with outer race to be connected；
Drive link (32) is supported by the transmission bracket (33) being arranged on base (4), and concrete structure is: drive link (32) and biography
Between dynamic support (33), bearing connects, drive link (32) and bearing inner ring interference fit, and transmission bracket (33) is solid with outer race
Fixed connection.
Dutycycle the most according to claim 1 and 2 continuously adjusts grating, it is characterised in that under the second rectangular raster (12)
Side is additionally provided with light source (5).
Dutycycle the most according to claim 3 continuously adjusts grating, it is characterised in that at the second rectangular raster (12) and light
Between source (5), it is additionally provided with diffusing transmission plate (6).
5. the dutycycle method for continuously adjusting realized on grating, its feature is continuously adjusted in dutycycle described in claim 1
It is, is rotated by motor (31), drive drive link (32) to rotate, and then drive turn (21) to rotate, by turning on (21)
External part (23) drives the first rectangular raster (11) and the second rectangular raster (12) adverse movement, it is achieved dutycycle continuously adjusts.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810014148.9A CN108181722B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method |
| CN201610585540.XA CN106054296B (en) | 2016-07-24 | 2016-07-24 | A kind of dutycycle continuously adjusts grating and dutycycle method for continuously adjusting |
| CN201810014150.6A CN108181676B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method of duty ratio continuous adjusting grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585540.XA CN106054296B (en) | 2016-07-24 | 2016-07-24 | A kind of dutycycle continuously adjusts grating and dutycycle method for continuously adjusting |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810014150.6A Division CN108181676B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method of duty ratio continuous adjusting grating |
| CN201810014148.9A Division CN108181722B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106054296A true CN106054296A (en) | 2016-10-26 |
| CN106054296B CN106054296B (en) | 2018-03-23 |
Family
ID=57417166
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585540.XA Expired - Fee Related CN106054296B (en) | 2016-07-24 | 2016-07-24 | A kind of dutycycle continuously adjusts grating and dutycycle method for continuously adjusting |
| CN201810014150.6A Expired - Fee Related CN108181676B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method of duty ratio continuous adjusting grating |
| CN201810014148.9A Expired - Fee Related CN108181722B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810014150.6A Expired - Fee Related CN108181676B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method of duty ratio continuous adjusting grating |
| CN201810014148.9A Expired - Fee Related CN108181722B (en) | 2016-07-24 | 2016-07-24 | Duty ratio continuous adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN106054296B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101750671A (en) * | 2009-12-23 | 2010-06-23 | 南京大学 | Planar waveguide Bragg grating and laser thereof based on reconstruction-equivalent chirp and equivalent apodization |
| CN101833172A (en) * | 2010-06-13 | 2010-09-15 | 中南大学 | Method for coupling and splitting polarized light and light coupling and splitting device |
| JP2014006950A (en) * | 2012-06-25 | 2014-01-16 | Asahi Glass Co Ltd | Diffraction element and optical head device |
| CN104076435A (en) * | 2014-07-14 | 2014-10-01 | 西北工业大学 | Femtosecond laser manufacturing device and method of SFBG |
| CN205809339U (en) * | 2016-07-24 | 2016-12-14 | 哈尔滨理工大学 | A kind of dutycycle continuously adjusts grating |
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| US4167666A (en) * | 1978-04-28 | 1979-09-11 | The United States Of America As Represented By The Secretary Of The Army | Multi-grating attenuator for high power pulsed laser beams |
| KR100574966B1 (en) * | 2004-01-20 | 2006-05-02 | 삼성전자주식회사 | Photomask and method for adjusting transmission coefficient and phase by use of the same |
| US7173764B2 (en) * | 2004-04-22 | 2007-02-06 | Sandia Corporation | Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission |
| US8411353B2 (en) * | 2009-08-12 | 2013-04-02 | Polyvalor, Limited Partnerhsip | Quasi-phase-matched wavelength converter |
| CN101833135B (en) * | 2010-05-14 | 2011-09-14 | 中国科学院上海光学精密机械研究所 | Transmission type grating phase shifter |
| CN101915954A (en) * | 2010-07-29 | 2010-12-15 | 北京交通大学 | Method for manufacturing sampling fiber bragg grating by utilizing photointerrupter |
| CN102602160A (en) * | 2012-03-09 | 2012-07-25 | 方平 | Reflecting type grating light valve and processing method thereof |
| CN103185918B (en) * | 2013-03-18 | 2015-05-06 | 南京邮电大学 | Micro-electro-mechanical adjustable nitride resonant grating |
| CN103345067B (en) * | 2013-06-25 | 2016-01-27 | 福州大学 | The mounting for grating of 2D/3D conversion can be realized and comprise the display of this device |
| CN103576225B (en) * | 2013-11-08 | 2016-01-20 | 无锡英普林纳米科技有限公司 | Position phase mask lithography prepares the method for the adjustable nanometer periodic optical grating of dutycycle |
| CN105301686A (en) * | 2015-11-20 | 2016-02-03 | 天津市拓普仪器有限公司 | Electric fine-adjustable double grating used in spectrometer |
-
2016
- 2016-07-24 CN CN201610585540.XA patent/CN106054296B/en not_active Expired - Fee Related
- 2016-07-24 CN CN201810014150.6A patent/CN108181676B/en not_active Expired - Fee Related
- 2016-07-24 CN CN201810014148.9A patent/CN108181722B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750671A (en) * | 2009-12-23 | 2010-06-23 | 南京大学 | Planar waveguide Bragg grating and laser thereof based on reconstruction-equivalent chirp and equivalent apodization |
| CN101833172A (en) * | 2010-06-13 | 2010-09-15 | 中南大学 | Method for coupling and splitting polarized light and light coupling and splitting device |
| JP2014006950A (en) * | 2012-06-25 | 2014-01-16 | Asahi Glass Co Ltd | Diffraction element and optical head device |
| CN104076435A (en) * | 2014-07-14 | 2014-10-01 | 西北工业大学 | Femtosecond laser manufacturing device and method of SFBG |
| CN205809339U (en) * | 2016-07-24 | 2016-12-14 | 哈尔滨理工大学 | A kind of dutycycle continuously adjusts grating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106054296B (en) | 2018-03-23 |
| CN108181676B (en) | 2020-02-28 |
| CN108181722B (en) | 2020-03-06 |
| CN108181722A (en) | 2018-06-19 |
| CN108181676A (en) | 2018-06-19 |
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Granted publication date: 20180323 Termination date: 20200724 |