CN208399816U - A kind of wide-range high-precision continuous laser attenuating device - Google Patents
A kind of wide-range high-precision continuous laser attenuating device Download PDFInfo
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- CN208399816U CN208399816U CN201821237337.4U CN201821237337U CN208399816U CN 208399816 U CN208399816 U CN 208399816U CN 201821237337 U CN201821237337 U CN 201821237337U CN 208399816 U CN208399816 U CN 208399816U
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Abstract
The utility model discloses a kind of wide-range high-precision continuous laser attenuating devices, including main body and the replaceable interconnecting piece detachably installed with main body；The main body is connect by replaceable interconnecting piece with measured laser equipment；The main body includes main casing, and it is set to the knob for being used for adjusting on the outside of main casing and is used to indicate the scale mark for adjusting angle, and it is installed on fixed attenuation piece and continuously adjustable damping mechanism inside main casing, and spacing is equipped between fixed attenuation piece and continuously adjustable damping mechanism；The wide-range high-precision continuous laser attenuating device of the utility model, in such a way that the decaying of replaceable fixed attenuation piece and polarization extinction combine, realization for laser attenuation amount it is continuous, fine-tune.
Description
Technical field
The utility model relates to a kind of wide-range high-precision continuous laser attenuating devices, belong to laser equipment performance test skill
Art field.
Background technique
In laser equipment performance test field, it is often necessary to response of the measuring device under different laser energy or power
Output, in addition to optical-fiber laser easily can use the attenuation measurement of Electro-optical Modulation mode, other laser transmitted in free space
When needing to decay, mostly use two ways at present: one is fixed attenuation piece combinations；There is fixed attenuation times using multiple
Several attenuators carries out multiple combinations as needed, to reach or approach the value of needs；Another kind is decayed using polarization extinction
Or the mode of reflection loss, in work eyeglass from when rotating to 90 ° for 0 °, for incident laser decaying rapidly from close to 0 mistake
It spends to 95% or more；Above-mentioned attenuation of the first kind device has the following problems in use: 1, attenuation multiple fix, number of combinations
It is limited, it cannot continuously adjust；2, when multi-disc attenuator is applied in combination, since the repetition between attenuator is turned back effect, so that most
Whole combined value is not fully equal to the cumulative of several attenuator nominal values；Though attenuation of the second kind device may be implemented continuously to adjust
Section, but its range of linearity only has 30 ° or so, realizes the decaying from 10% to 90% in this one small angular range, adjusting
Precision is lower.Therefore, in order to solve problem above, it would be highly desirable to design a kind of wide-range high-precision continuous laser attenuating device.
Utility model content
In order to solve the above problems, the utility model proposes a kind of wide-range high-precision continuous laser attenuating device, use
The replaceable fixed attenuation piece mode combined with polarization extinction decaying, realize for laser attenuation amount it is continuous, fine-tune.
The wide-range high-precision continuous laser attenuating device of the utility model, is detachably installed including main body and with main body
Replaceable interconnecting piece；The main body is connect by replaceable interconnecting piece with measured laser equipment；The main body includes main casing, and
The knob for being used for adjusting being set on the outside of main casing and the scale mark for being used to indicate adjusting angle, and be installed in main casing
The fixed attenuation piece and continuously adjustable damping mechanism in portion, and spacing is equipped between fixed attenuation piece and continuously adjustable damping mechanism；
The fixed attenuation piece is fixed on main casing front end by big gasket, spring and tabletting；The continuously adjustable decaying
Mechanism include for realizing the preposition polarizing film that incident laser is polarized and for realizing for incident polarization laser into
The postposition polarizing film of row serial extinction；The preposition polarizing film is fixed on inside main casing by clamp nut；The postposition is inclined
Vibration piece is fixed on turnbarrel by clamp nut；The turnbarrel is fixedly connected by holding screw with knob；It is described
Turnbarrel its retaining ring for being limited to turnbarrel is installed away from preposition polarizing film side.
Further, the replaceable interconnecting piece includes connector and interchangeable connections；The connector and replaceable
Connector is fixedly connected by jackscrew with screw.
Still further, the connector is sheathed on main casing rear end；The interchangeable connections are fastened in measured laser
On the reception window of equipment.
Still further, the interchangeable connections are mutually matched by two and are formed in the connection arc of semicircular arc-shaped.
Further, its interior forward end of the main casing offers the card slot for installing fixed attenuation piece；The fixation
Attenuator and big gasket are arranged in card slot respectively；The big gasket its be close to spring away from fixed attenuation piece side；It is described
Tabletting pressure is set to the spring other end, fixed attenuation piece is fixed in main casing by spring, big gasket and tabletting, dismounting side
Just, convenient replacement fixed attenuation piece can be needed according to decaying range, may also adapt to the attenuator of different-thickness for this
Device.
Compared with prior art, the wide-range high-precision continuous laser attenuating device of the utility model,
Using the replaceable fixed attenuation piece of monolithic, the measurement range switching in machine with wide range may be implemented；Using two polarizer groups at
Continuously adjustable damping mechanism can realize continuous decaying in a certain measuring gear；Only decayed using continuously adjustable damping mechanism
The linear zone of cosine curve, improves degree of regulation；The number of lenses and relative mounting location that this Attenuation adjustable device uses are solid
It is fixed, it may be convenient to determine the attenuated error as caused by the multiple reflections between mirror surface, and be corrected；Using can be more
The Interface design changed enables the attenuating device to be reliably used for the laser equipment measurement of a variety of different interface types.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the utility model.
Fig. 2 is the schematic diagram of internal structure of the utility model.
Fig. 3 is the configuration schematic diagram of the replaceable interconnecting piece of the utility model.
Fig. 4 is the wide-range high-precision continuous laser attenuating device of the utility model and the package assembly of measured laser equipment
Schematic diagram.
Each component mark in attached drawing are as follows: 1- main body, the replaceable interconnecting piece of 2-, 3- laser range finder, the big gasket of 4-, 5- bullet
Spring, 6- tabletting, 7- clamp nut, 8- jackscrew, 9- screw, 10- reception window, 11- main casing, 12- knob, 13- scale mark,
14- fixed attenuation piece, the preposition polarizing film of 15-, 16- postposition polarizing film, 17- turnbarrel, 18- retaining ring, 19- holding screw, 20-
Interchangeable connections, 21- connector.
Specific embodiment
Embodiment 1:
Wide-range high-precision continuous laser attenuating device as shown in Figures 1 to 4, including main body 1 and detachable with main body
The replaceable interconnecting piece 2 of installation；The main body 1 is connect by replaceable interconnecting piece 2 with laser range finder 3；The main body 1 includes
Main casing 11, and be set to the knob 12 for being used for adjusting in 11 outside of main casing and be used to indicate the scale mark for adjusting angle
13, and be installed on fixed attenuation piece 14 and continuously adjustable damping mechanism inside main casing 11, and fixed attenuation piece 14 and continuous
Spacing is equipped between adjustable damping mechanism；
The fixed attenuation piece 14 is fixed on 11 front end of main casing by big gasket 4, spring 5 and tabletting 6；It is described continuously
Adjusting damping mechanism includes for realizing the preposition polarizing film 15 that incident laser is polarized and for realizing for incident inclined
The laser that shakes carries out the postposition polarizing film 16 of serial extinction；The preposition polarizing film 15 is fixed on main casing 11 by clamp nut 7
It is internal；The postposition polarizing film 16 is fixed on turnbarrel 17 by clamp nut 7；The rotary sleeve 17 passes through clamp screw
Nail 19 is fixedly connected with knob 12；The turnbarrel 17 its be equipped with for turnbarrel away from preposition 15 side of polarizing film
The retaining ring 18 limited.
The replaceable interconnecting piece 2 includes connector 21 and interchangeable connections 22；The connector 21 and replaceable company
Fitting 22 is fixedly connected by jackscrew 8 with screw 9.
The connector 21 is sheathed on 11 rear end of main casing；The interchangeable connections 22 are fastened in laser range finder 3
It receives on window 10, since the continuous precise decaying that this laser attenuation device may be implemented in machine with wide range for laser is adjusted
Section greatly improves the precision of the detection probability response curve measurement of laser range finder.
The interchangeable connections 22 are mutually matched by two and are formed in the connection arc of semicircular arc-shaped.
Described its interior forward end of main casing 11 offers the card slot for installing fixed attenuation piece 14；The fixed attenuation piece
14 and big gasket 4 be arranged in card slot respectively；The big gasket 4 its be close to spring 5 away from 14 side of fixed attenuation piece；It is described
The pressure of tabletting 6 is set to 5 other end of spring.
The wide-range high-precision continuous laser attenuating device of the utility model, can be according to incident laser energy size and decaying
Target requirement replaces the fixed attenuation piece of differential declines coefficient, then by rotation knob, adjusts two of adjustable damping device
Angle between polarizing film, realize for laser attenuation amount it is continuous, fine-tune；According to different application or survey can be used
Object is tried, different interface connectors is replaced, so that this attenuating device is reliably connected with a variety of equipment under tests, facilitates test.
Above-described embodiment is only the better embodiment of the utility model, therefore all according to the utility model patent application range
The equivalent change or modification that the structure, feature and principle is done, is included in the scope of the utility model patent application.
Claims (5)
1. a kind of wide-range high-precision continuous laser attenuating device, it is characterised in that: detachably installed including main body and with main body
Replaceable interconnecting piece；The main body is connect by replaceable interconnecting piece with measured laser equipment；The main body includes main casing,
And it is set to the knob for being used for adjusting on the outside of main casing and is used to indicate the scale mark for adjusting angle, and be installed on main casing
Internal fixed attenuation piece and continuously adjustable damping mechanism, and between being equipped between fixed attenuation piece and continuously adjustable damping mechanism
Away from；
The fixed attenuation piece is fixed on main casing front end by big gasket, spring and tabletting；The continuously adjustable damping mechanism
Including connecting for realizing the preposition polarizing film that incident laser is polarized and for realizing for incident polarization laser
The postposition polarizing film of continuous delustring；The preposition polarizing film is fixed on inside main casing by clamp nut；The postposition polarizing film
It is fixed on turnbarrel by clamp nut；The turnbarrel is fixedly connected by holding screw with knob；The rotation
Sleeve its retaining ring for being limited to turnbarrel is installed away from preposition polarizing film side.
2. wide-range high-precision continuous laser attenuating device according to claim 1, it is characterised in that: the replaceable company
Socket part includes connector and interchangeable connections；The connector is fixedly connected by jackscrew with screw with interchangeable connections.
3. wide-range high-precision continuous laser attenuating device according to claim 2, it is characterised in that: the connector set
Set on main casing rear end；The interchangeable connections are fastened on the reception window of measured laser equipment.
4. wide-range high-precision continuous laser attenuating device according to claim 2 or 3, it is characterised in that: it is described can be more
Connector is changed to be mutually matched by two and formed in the connection arc of semicircular arc-shaped.
5. wide-range high-precision continuous laser attenuating device according to claim 1, it is characterised in that: the main casing its
Interior forward end offers the card slot for installing fixed attenuation piece；The fixed attenuation piece and big gasket are arranged in card slot respectively
In；The big gasket its be close to spring away from fixed attenuation piece side；The tabletting pressure is set to the spring other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237337.4U CN208399816U (en) | 2018-08-02 | 2018-08-02 | A kind of wide-range high-precision continuous laser attenuating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237337.4U CN208399816U (en) | 2018-08-02 | 2018-08-02 | A kind of wide-range high-precision continuous laser attenuating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208399816U true CN208399816U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821237337.4U Active CN208399816U (en) | 2018-08-02 | 2018-08-02 | A kind of wide-range high-precision continuous laser attenuating device |
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| CN (1) | CN208399816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897136A (en) * | 2020-08-13 | 2020-11-06 | 中国科学院长春光学精密机械与物理研究所 | Dynamic continuous attenuation device for mid-infrared laser |
| CN113092747A (en) * | 2021-04-14 | 2021-07-09 | 成都爱兴生物科技有限公司 | Light source component for detection of luminescence immunoassay analyzer |
-
2018
- 2018-08-02 CN CN201821237337.4U patent/CN208399816U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897136A (en) * | 2020-08-13 | 2020-11-06 | 中国科学院长春光学精密机械与物理研究所 | Dynamic continuous attenuation device for mid-infrared laser |
| CN113092747A (en) * | 2021-04-14 | 2021-07-09 | 成都爱兴生物科技有限公司 | Light source component for detection of luminescence immunoassay analyzer |
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