CN201497828U - Polarized light filter wheel with angle-tunable installation holes - Google Patents
Polarized light filter wheel with angle-tunable installation holes Download PDFInfo
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- CN201497828U CN201497828U CN2009201824709U CN200920182470U CN201497828U CN 201497828 U CN201497828 U CN 201497828U CN 2009201824709 U CN2009201824709 U CN 2009201824709U CN 200920182470 U CN200920182470 U CN 200920182470U CN 201497828 U CN201497828 U CN 201497828U
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- filter wheel
- mounting hole
- filter
- angle
- set collar
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Abstract
The utility model discloses a polarized light filter wheel with angle-tunable installation holes, which comprises a base seat, a filter wheel and tuning holes, wherein the filter wheel is in a circular disk shape, provided with arc-shaped grooves on the outer periphery and fixed on the reverse T shape base seat, and the tuning holes are embedded inside installation holes which are radially distributed in an equal angle manner with the circular center of the filter wheel as the center and correspond to the arc-shaped grooves. Filter wheel installation holes and a spring colliding ball are arranged on the axis of an upright column of the reverse T shape base seat; the filter wheel is fixed on the filter wheel installation holes via a fastening ring and central fastening screws installed in the back surface direction; and each tuning hole comprises a fixing ring, a locking flat head screw, a rubber gasket, a filter sheet and a filter sheet fixing ring. The polarized light filter wheel with angle-tunable installation holes provides compact and convenient light polarizing/filtering structure, leads each hole angle to be continuously tunable and realizes fast switching and tuning optical elements in a multi-channel system.
Description
Technical field
The utility model relates to a kind of optical device, relates to a kind of humorous filter wheel of each mounting hole adjustable angle that is applied in multichannel polarized light, the passage filter system specifically.
Technical background
In the existing optic analytical instrument, to when perhaps output light being carried out the polarization characteristic detection, often to install polaroid (or wave plate) additional with linear polarization/circularly polarized light as light source sometimes.But for the multi-pass system, perhaps need to obtain the light of multiple polarization state, will carry out the switching between the different polarization sheet.At this moment, in handoff procedure, the angle that all will regulate polaroid remains unchanged to guarantee emergent light intensity and polarization state at every turn, and this has come great difficulty to regulating the work zone, and wastes time and energy, and experimental error is big.At this moment, just demand a kind of a kind of device that has filter wheel and polariscope holder function simultaneously urgently, to realize that optical element rotates the switching of finishing different wave length and polarization state with filter wheel, every optical element can be realized the continuously adjustable of angle around the optical axis rotation of self again simultaneously.
The mounting hole of existing filter wheel all is to be fixed on the filter wheel sheet, the optical element that is installed on wherein can not carry out angular adjustment, and be used to clamp the polarisation mirror holder of circular optical elements (as wave plate, polaroid etc.), can not realize the switching of different interchannel optical elements again.Therefore, existing support can not possess described two kinds of required functions simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is, overcome the function that prior art is difficult to realize, a kind of humorous polarisation filter wheel of each mounting hole adjustable angle in multichannel polarized light, the passage filter system that is applied to is provided, realize switching easily between the optical element of different passages, simultaneously location machinery can to optical filter wheel carry out repeatedly, accurate localization.
The technical scheme that its technical matters that solves the utility model adopts is: the polarisation filter wheel is made of pedestal, filter wheel and three parts of tuned window, wherein filter wheel is in the form of annular discs, its neighboring is provided with circular-arc recessed groove, filter wheel is fixed in down on the pedestal of T-shape, tuned window be embedded in the filter wheel center of circle be the center radially isogonism distribute, with the corresponding mounting hole of circular-arc recessed groove in.The described flat-shaped column vertical centering control axis of the pedestal of T-shape is provided with filter wheel mounting hole and spring latch lock, the center holding screw that filter wheel is installed by tight loop and back side direction is fixed on the pedestal, bump pearl at filter wheel rotation medi-spring and play location and stopping function, pedestal can make the filter wheel support directly be fixed on an optical table or the optical sheet, perhaps can take off pedestal, base can be directly installed on above the bar of TR series; Described tuned window comprises the set collar that has scale, the locking flat head screw that is arranged at the filter wheel edge, colloid pad, optical filter and optical filter retainer plate, the pin thread of optical filter retainer plate just in time combines with the other end female screw rotation of set collar, guarantees that optical filter can be positioned in the tuned window.
The scale that has on the described set collar, be positioned at the outer of set collar, by 360 ° of delineations, set collar lateral surface middle part is provided with by Baltimore groove, after set collar is inserted in mounting hole, screws the locking flat head screw that is positioned at the filter wheel edge, the head of flat head screw just in time is entrenched in the Baltimore groove, can guarantee that set collar and filter wheel closely cooperate, can rotate again but do not do axially relatively and slide, realize the continuously adjustable of tuned window angle.
The beneficial effects of the utility model are, when replacing a whole set of optical filter in optical texture, can remove easily and different filter wheels is installed.Filter wheel can be rotated around the center holding screw, realize switching easily between the optical element of different passages, simultaneously location machinery can to optical filter wheel carry out repeatedly, accurate localization.By regulating the 360 ° of delineations in index dial border, make things convenient for reading, can the optical element in the mounting hole of packing into be rotated, realize the continuously adjustable of angle.That this patent provides is compact, polarisation/filtering structure easily, realizes the quick switching of optical element in adjustable continuously, the multi-channel system of each orifice angle and tuning.
Description of drawings
Fig. 1 is the front elevation of the humorous polarisation filter wheel of each mounting hole adjustable angle among the embodiment 1;
Fig. 2 is the rear view of the humorous polarisation filter wheel of each mounting hole adjustable angle among the embodiment 1;
Fig. 3 is the side view of the humorous single group polarisation filter wheel of each mounting hole adjustable angle of mode among the embodiment 1;
Fig. 4 is the side view of the humorous two group polarisation filter wheels of each mounting hole adjustable angle among the embodiment 2;
Fig. 5 is the tuned window of the humorous polarisation filter wheel of each mounting hole adjustable angle among the embodiment 1 and the local enlarged diagram between the mounting hole;
Embodiment
For the utility model there being further understanding, now in conjunction with the accompanying drawings the utility model embodiment is done concrete description.
Among Fig. 1, the 1st, the positive filter wheel that shows; The 2nd, tuned window has 6 groups, by the isogonism distribution radially of 60 ° of central angles; The 3rd, the filter wheel tight loop; The 4th, be positioned at the scale that has on the tuned window set collar; The 5th, fall the pedestal of T-shape.
Among Fig. 2, the 1st, the filter wheel that shows later; The 2nd, tuned window; The 5th, fall the pedestal of T-shape; The 6th, be arranged at the embeddable spherical groove of spring latch lock at filter wheel 1 back side, be positioned on the line at the center of circle of filter wheel 1 and tuned window 2 centers, have location and stopping function; The 7th, fall spring latch lock on the flat-shaped column vertical centering control axis of pedestal 5 of T-shape.
Among Fig. 4, the 1st, the filter wheel that the side shows; The 2nd, tuned window; The 3rd, the filter wheel tight loop; The 5th, fall the pedestal of T-shape; The 7th, fall spring latch lock on the flat-shaped column vertical centering control axis of pedestal 5 of T-shape; The 8th, be positioned at the locking flat head screw of filter wheel lateral surface; The 9th, filter wheel 1 and the sliding gasket between the flat-shaped column of pedestal 5 of T-shape of falling;
Among Fig. 5, the 1st, the filter wheel that the side shows; The 2nd, tuned window; The 8th, be positioned at the locking flat head screw of filter wheel lateral surface; The 10th, the Baltimore groove that the set collar lateral surface middle part in the tuned window 2 is provided with after set collar is inserted in mounting hole, screws the locking flat head screw 8 that is positioned at filter wheel 1 lateral surface, and the head of flat head screw 8 just in time is entrenched in this Baltimore groove; The 11st, pad behind the optical filter; The 12nd, optical filter; The 13rd, the back pad of optical filter 12; The 14th, the pin thread retainer plate of optical filter 12 just in time combines with the other end female screw rotation of set collar, guarantees that optical filter can be positioned in the tuned window 2.
According to Fig. 1, Fig. 2, Fig. 3 and a processing shown in Figure 5 parts, assemble, and pedestal 5 directly is fixed on the optical table.
Obtain the adjustable linearly polarized light of light intensity, tuning convenience by this device; Two filter wheels are arranged in apparatus of the present invention, can carry out optics combination of elements use on two wheels.The linear polarizer of packing on filter wheel therein is respectively charged into a linear polarizer in the different tuned windows of another filter wheel, then respectively the polaroid in the different tuned windows is carried out angular adjustment.
Can get by Malus law,
Wherein, A
1, A
2Be respectively by the amplitude behind former and later two polaroids, thereby by the light intensity behind two polaroids
θ is shake the thoroughly angle of direction of former and later two polaroids.
Therefore as shown from the above formula, final intensity variations scope from second polaroid outgoing is (0～I
1), and with cos
2θ changes with the variation of angle θ, thereby realizes the continuously adjustable of light intensity.
After determining good required light intensity, in the different tuned windows of filter wheel, realize setting and the tuning well linear polarizer of different combination angles, in the light time of switching constant intensity, just do not need to readjust the angle of element self, the position that only needs to switch different tuned windows can obtain the emergent light of desirable strength to the optical axis.
Above content is in conjunction with concrete preferred implementation the utility model to be said further describing of making, and can not assert that concrete enforcement of the present utility model is only limited to these explanations.
According to Fig. 1, Fig. 2, Fig. 4 and a processing shown in Figure 5 parts, assemble, and pedestal 5 directly is fixed on the optical table.
Realize the acquisition of different polarization states light and switch easily and regulate by this device:
Two filter wheels are arranged in this device, can carry out optics combination of elements use on two wheels.λ/4 wave plates corresponding of packing on filter wheel therein with lambda1-wavelength, the polarizer of in the different tuned windows of another filter wheel, packing into, then respectively to the polaroid in the different tuned windows carry out angular adjustment (as: with the optical axis included angle of λ/4 be 0 °, 45 °, 90 ° etc.).
Determining good required polarization state of light, after the number of the ellipse degree of bias and polaroid, in the different tuned windows of filter wheel, realize configuring the different combination of orientation angle of shaking thoroughly of different λ/4 wave plate optical axises and polaroid, be that angle between the two is 0 °, 45 ° (can be other angle), 90 ° is that corresponding polarization state is respectively linear polarization, elliptic polarization (elliptic polarizations that the ellipse degree of bias is different) and elliptic polarization, in the light time of switching different polarization states, just do not need to readjust the angle of element self, only need to switch preestablish with the different tuned windows that regulate on the centrally aligned of polaroid to optical axis, can obtain the emergent light of required state, this method is convenient and swift, is convenient to tuning.
Above content is in conjunction with concrete preferred implementation the utility model to be said further describing of making, and can not assert that concrete enforcement of the present utility model is only limited to these explanations.
Claims (4)
1. humorous polarisation filter wheel of each mounting hole adjustable angle, it is characterized in that: the polarisation filter wheel is made of pedestal, filter wheel and three parts of tuned window, wherein filter wheel is in the form of annular discs, its neighboring is provided with circular-arc recessed groove, filter wheel is fixed in down on the pedestal of T-shape, tuned window be embedded in the filter wheel center of circle be the center radially isogonism distribute, with the corresponding mounting hole of circular-arc recessed groove in.
2. the humorous polarisation filter wheel of each mounting hole adjustable angle according to claim 1, it is characterized in that: the flat-shaped column vertical centering control axis of the pedestal of T-shape is provided with filter wheel mounting hole and spring latch lock, and the center holding screw that filter wheel is installed by tight loop and back side direction is fixed on the pedestal.
3. the humorous polarisation filter wheel of each mounting hole adjustable angle according to claim 1, it is characterized in that: described tuned window comprises the set collar that has scale, the locking flat head screw that is arranged at the filter wheel edge, colloid pad, optical filter and optical filter retainer plate, and the pin thread of optical filter retainer plate just in time combines with the other end female screw rotation of set collar.
4. the humorous polarisation filter wheel of each mounting hole adjustable angle according to claim 1, it is characterized in that: the scale that has on the described set collar, be positioned at the outer of set collar, by 360 ° of delineations, set collar lateral surface middle part is provided with by Baltimore groove, after set collar is inserted in mounting hole, screw the locking flat head screw that is positioned at the filter wheel lateral surface, the head of flat head screw just in time is entrenched in the Baltimore groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201824709U CN201497828U (en) | 2009-07-30 | 2009-07-30 | Polarized light filter wheel with angle-tunable installation holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201824709U CN201497828U (en) | 2009-07-30 | 2009-07-30 | Polarized light filter wheel with angle-tunable installation holes |
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| Publication Number | Publication Date |
|---|---|
| CN201497828U true CN201497828U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201824709U Expired - Fee Related CN201497828U (en) | 2009-07-30 | 2009-07-30 | Polarized light filter wheel with angle-tunable installation holes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793310A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院长春光学精密机械与物理研究所 | Monochromator multi-filter switching mechanism |
| CN106662727A (en) * | 2014-06-05 | 2017-05-10 | 新港公司 | Low interference optical mount |
-
2009
- 2009-07-30 CN CN2009201824709U patent/CN201497828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106662727A (en) * | 2014-06-05 | 2017-05-10 | 新港公司 | Low interference optical mount |
| CN104793310A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院长春光学精密机械与物理研究所 | Monochromator multi-filter switching mechanism |
| CN104793310B (en) * | 2015-04-21 | 2017-06-23 | 中国科学院长春光学精密机械与物理研究所 | The many optical filter switching mechanisms of monochromator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20110730 |