CN2259622Y - Continuously-variable laser attenuator - Google Patents
Continuously-variable laser attenuator Download PDFInfo
- Publication number
- CN2259622Y CN2259622Y CN 95227865 CN95227865U CN2259622Y CN 2259622 Y CN2259622 Y CN 2259622Y CN 95227865 CN95227865 CN 95227865 CN 95227865 U CN95227865 U CN 95227865U CN 2259622 Y CN2259622 Y CN 2259622Y
- Authority
- CN
- China
- Prior art keywords
- attenuator
- variable laser
- wedge
- continuously
- laser
- 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
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a continuously-variable laser attenuator, which is used for metering and detection of laser and needs to change the original energy, power, or strength of the used laser. The continuously-variable laser attenuator is composed of two wedge-shaped slides (2), (3) which have the same material and geometric size and are respectively arranged on two screw nuts of sliding blocks (8). The two screw nuts of the sliding blocks (8) are respectively engaged with a left and a right rotary screws on a screw rod (4). A handle (6) is rocked; the screw nuts of the sliding blocks (8) can continuously and smoothly conduct reverse motion in a sliding groove composed of dovetail guide blocks (7), (9), and accordingly, total transmittance of an optical wedge can be changed, and the goal of continuously and changeably attenuating the laser can be obtained.
Description
The utility model relates to a kind of continuous variable laser attenuator assembly that is used for laser metrology detection and the original energy of the needs used laser of change, power or intensity.
The general laser attenuator assembly of use is provided at present, mostly is stepped construction (as domestic common JBC type construction standard attenuator), can not decay to laser energy, power continuously.In the more existing at home laser attenuator assembly with continuous variable, perhaps can only be used for the linearly polarized laser bundle, but its loss or decay excessive (as the Glan prism type), perhaps element manufacturing difficulty, optical homogeneity poor (as the plated film type) and inapplicable is as for two right-angle prism types of import or rotating wedge type laser attenuator assembly etc., then because of complicated in mechanical structure, cost an arm and a leg, be difficult to promote.
It is a kind of simple in structure that the purpose of this utility model is to provide, low cost, the laser attenuator assembly that the new type of continuous of superior performance is variable.For example, can make laser beam power to be detected, energy or intensity approach the upper limit of detector measurement, thereby improve its signal to noise ratio (S/N ratio).
The purpose of this utility model is finished by following design proposal.Form the two compensation optical attenuator of wedge systems by two wedge shape slides 2,3, two wedge shape optics slides 2,3 are installed in respectively on two slider nuts 8.Two 8, one of slider nuts be left-hand thread (LHT) another be right-hand thread, the left and right hand thread with leading screw 4 is meshed respectively, composition can be made the accurate reverse translation mechanism of reverse translation motion.Continuous mobile translation mechanism can change the total transmittance of light beam by place's wedge, thereby reaches the purpose of continuous variable decay.
The utility model has the advantages that simple in structure, device is small and exquisite, easy to use, excellent performance (transmission and decay continuous variable, dynamic range can be selected as required, do not change distribution of elementary beam space and beamwidth etc., not influenced by optical polarization and interference effect, decay light beam transversal displacement is little) low cost etc.
Description of drawings:
Fig. 1---continuous variable laser attenuator assembly structural drawing
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
With two materials and optics retrofit all identical with physical dimension wedge shape optics slide 2,3, be installed in respectively on the two precision optical machinery adjusting brackets (being slider nut 8) that can do reverse translation.Allow need to change its strong and weak laser beam, make two slider nuts 8 do reverse parallel moving, can change the total transmittance of wedge by the place at light beam by two wedge shape slide overlappings, thus make energy, power or the strength retrogression by laser to necessary requirement.
In order to make two compensation optical attenuators of wedge have higher performance, respectively can be at visible, the infrared and different spectral region of ultraviolet, can select optical glass materials such as neutral dark gray glass, infrared calcium fluoride and ultraviolet quartz for use, select and make through optics finishing less than 3 ° the angle of wedge.
In order to reach the purpose of reverse movement, adopt finishing leading screw to pay (being leading screw 4 and two slider nuts 8) with left and right hand thread.In order to guarantee that translation motion has good rectilinearity, the lower end of slider nut 8 is designed to swallow-tail form, cooperate with it with two dovetail guide blocks 7 and 9, make it in the leading screw length range, to form the accurate guide groove that slider nut 8 slides.In order to guarantee that the translation motion of wedge shape slide has maximum stroke, falls a part with the screw chasing of two slider nut 8 opposite ends.
Two root pointers are arranged on the erecting frame of two wedge shape slides, cooperate the scale of carving on the attenuator body, so that accurately reappear required decay.All do not mark on the figure.
Claims (4)
1, a kind of continuous variable laser attenuator assembly, it is characterized in that, it has the compensation optical attenuator of the two wedges system that is made up of two wedge shape slides (2), (3), two wedge shape optics slides (2), (3) are installed in respectively on two slider nuts (8), two (8) one of slider nuts be left-hand thread (LHT) another be right-hand thread, left and right hand thread with leading screw (4) is meshed respectively, forms accurate reverse translation mechanism.
2, continuous variable laser attenuator assembly according to claim 1, it is characterized in that described wedge shape slide (2), (3) respectively have the angle of wedge and the materials such as employing neutral dark gray glass sheet, calcium fluoride glasses for infrared use and ultraviolet quartz less than 3 °, make through optics finishing, this two wedge shapes slide (2), (3) have identical materials and physical dimension.
3, continuous variable laser attenuator assembly according to claim 1, it is characterized in that the leading screw (4) in the described reverse translation mechanism, have left-handed and right-hand thread, be installed on the two ends frame of attenuator body (1), one end of leading screw (4) is equipped with the handle (6) in order to rotational lead screw (4), swallow-tail form is made in the lower end of slider nut (8), and becomes to be slidingly matched with dovetail guide plate (7), (9).
4, according to claim 1,2 and 3 described continuous variable laser attenuator assemblies, it is characterized in that on the erecting frame of two wedge shape slides two root pointers being arranged, be carved with scale on the attenuator body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227865 CN2259622Y (en) | 1995-12-14 | 1995-12-14 | Continuously-variable laser attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227865 CN2259622Y (en) | 1995-12-14 | 1995-12-14 | Continuously-variable laser attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259622Y true CN2259622Y (en) | 1997-08-13 |
Family
ID=33873602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227865 Expired - Fee Related CN2259622Y (en) | 1995-12-14 | 1995-12-14 | Continuously-variable laser attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259622Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449505A (en) * | 2015-12-16 | 2016-03-30 | 中国科学院西安光学精密机械研究所 | Coding type high-magnification laser attenuator |
| CN106597651A (en) * | 2017-01-11 | 2017-04-26 | 肇庆学院 | Prism-surface-reflection-based variable-zoom dimming apparatus |
| CN108123358A (en) * | 2017-12-28 | 2018-06-05 | 西安应用光学研究所 | The linear damped system of Larger Dynamic scope laser and attenuator |
| CN111220358A (en) * | 2018-11-26 | 2020-06-02 | 大族激光科技产业集团股份有限公司 | High-power laser light source continuous stability testing system and method |
| EP3250951B1 (en) * | 2015-01-30 | 2023-06-07 | Edinburgh Biosciences Limited | Attenuator |
-
1995
- 1995-12-14 CN CN 95227865 patent/CN2259622Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3250951B1 (en) * | 2015-01-30 | 2023-06-07 | Edinburgh Biosciences Limited | Attenuator |
| CN105449505A (en) * | 2015-12-16 | 2016-03-30 | 中国科学院西安光学精密机械研究所 | Coding type high-magnification laser attenuator |
| CN105449505B (en) * | 2015-12-16 | 2018-10-02 | 中国科学院西安光学精密机械研究所 | Coding type high-magnification laser attenuator |
| CN106597651A (en) * | 2017-01-11 | 2017-04-26 | 肇庆学院 | Prism-surface-reflection-based variable-zoom dimming apparatus |
| CN108123358A (en) * | 2017-12-28 | 2018-06-05 | 西安应用光学研究所 | The linear damped system of Larger Dynamic scope laser and attenuator |
| CN111220358A (en) * | 2018-11-26 | 2020-06-02 | 大族激光科技产业集团股份有限公司 | High-power laser light source continuous stability testing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2259622Y (en) | Continuously-variable laser attenuator | |
| EP0242436B1 (en) | Device for measuring small lengths | |
| EP0153740A3 (en) | Telescopic sight with erector lens focus adjustment | |
| CN103630974B (en) | A kind of linear pattern continuously adjustabe optical attenuation unit | |
| CN101532880B (en) | Double-moving-mirror interferometer | |
| CN101950061A (en) | Translation platform with built-in devices | |
| CN110455200A (en) | A kind of ripple back-fire relief panel surface wave height dimension measuring device | |
| CN105866891A (en) | Two-way linear continuously adjustable light attenuation unit based on reciprocating lead screw | |
| JPS6438711A (en) | Zoom lens | |
| CN212989163U (en) | Device for measuring refractive index of transparent flat medium | |
| CN201867529U (en) | Light beam reflection angle adjusting device | |
| CN109491035B (en) | Large-caliber spliced grating precise adjusting frame | |
| CN212060702U (en) | Illumination divergence angle adjustable structure adopting combination of diffractive optical element and zoom lens | |
| Cao et al. | Structure design and wavelength accuracy analysis of ultraviolet double grating spectrometer | |
| CN112034582B (en) | High-dispersion high-refractive-index binary optical lens | |
| CN215340305U (en) | Combined prism for multi-direction observation | |
| CN201096498Y (en) | Direct counting type grid pitch-variable single grating light displacement sensor possessing double mirror | |
| CN2553399Y (en) | Multiple wave band laser energy equimultiple radio attenuator | |
| CN221765727U (en) | Calibrating device of range finder | |
| CN217463101U (en) | Lead screw module structure capable of realizing large-ratio coarse-fine double speed | |
| CN212300352U (en) | Torpedo level with laser ranging function | |
| CN201464670U (en) | Variable optical attenuator | |
| US2721031A (en) | Mechanical indicator for spectrographs | |
| CN207571949U (en) | For optimizing the device of Spectromenter Adjustment visual field | |
| CN2824067Y (en) | Laser beam converting lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |