CN204065641U - A kind of switching device of optical fiber - Google Patents
A kind of switching device of optical fiber Download PDFInfo
- Publication number
- CN204065641U CN204065641U CN201420519556.7U CN201420519556U CN204065641U CN 204065641 U CN204065641 U CN 204065641U CN 201420519556 U CN201420519556 U CN 201420519556U CN 204065641 U CN204065641 U CN 204065641U
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- framework
- connecting rod
- rotating shaft
- firm banking
- filtering assembly
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Abstract
The utility model discloses a kind of switching device of optical fiber, comprise fixed cap, firm banking, the first filtering assembly being all built in firm banking, the second filtering assembly, first connecting rod, second connecting rod, drive unit and rotating shaft, fixed cap is covered in firm banking upper end, and fixed cap has light hole; First filtering assembly comprises the first framework and is laid on the first optical filter in this first framework, and one end and the rotating shaft of first connecting rod are fixed, and the other end and first framework of first connecting rod are hinged near one end of rotating shaft, and the first framework is also slidably matched with fixed cap; Second filtering assembly comprises the second framework and is laid on the second optical filter in this second framework, second framework is rotatably assorted away from one end of rotating shaft and firm banking, one end and the rotating shaft of second connecting rod are fixed, and the other end and second framework of second connecting rod are hinged near one end of rotating shaft.The utility model can realize switching fast to the first optical filter and the second optical filter, and switch precision high, the life-span is long.
Description
Technical field
The utility model relates to a kind of switching device of optical fiber.
Background technology
In the surveillance camera of dual-purpose round the clock, when brighter for subject and when subject is darker, need to switch photograph mode.Specifically, apply colour phhotograpy pattern when the photography environment on the daytime that subject is brighter etc., apply the mode of monochromatic photographic pattern when the photography environment at the night that subject is darker etc.General under colour phhotograpy pattern, photographed by infrared intercepting filter, under monochromatic photographic pattern, do not use infrared intercepting filter or photographed by other optical filter.Therefore, switching device shifter is needed to carry out switching photograph mode to two kinds of optical filters, the mode of current switching is as application number switching device of optical fiber disclosed in 201310464354.7, it adopts gear transmission mode to switch, and its switch speed is slow, along with the wearing and tearing of gear set, the precision switched can reduce, later maintenance and repair are all inconvenient, and cost is very high, also easily occur phenomenon that is stuck, the lost of life after long-term use.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of switching device of optical fiber, and can realize switching fast to the first optical filter and the second optical filter, switch precision high, the life-span is long.
The purpose of this utility model adopts following technical scheme to realize:
A kind of switching device of optical fiber, comprise fixed cap, firm banking, the first filtering assembly being all built in firm banking, the second filtering assembly, first connecting rod, second connecting rod, drive unit and the rotating shaft by this drive unit driven rotary, fixed cap is covered in firm banking upper end, and fixed cap has light hole; First filtering assembly comprises the first framework and is laid on the first optical filter in this first framework, and one end and the rotating shaft of first connecting rod are fixed, and the other end and first framework of first connecting rod are hinged near one end of rotating shaft, and the first framework is also slidably matched with fixed cap; Second filtering assembly comprises the second framework and is laid on the second optical filter in this second framework, second framework is rotatably assorted away from one end of rotating shaft and firm banking, one end and the rotating shaft of second connecting rod are fixed, and the other end and second framework of second connecting rod are hinged near one end of rotating shaft; The projection on firm banking of first connecting rod and second connecting rod is intersected.
Preferably, the other end vertical protrusion of described first connecting rod has the first projection, described first framework has the straight be slidably matched with the first projection, and the length direction of this straight is vertical with the glide direction of the first framework.
Preferably, described fixed cap is raised with the sliver for carrying out slide-and-guide to the first framework downwards.
Preferably, described firm banking has raised up the second projection, and described second framework has the arc chute be slidably matched with the second projection, the center of this arc chute overlaps with the center of rotation of the second framework.
Preferably, the second framework away from one end of rotating shaft and firm banking hinged.
Preferably, described drive unit is rotary electric magnet, this rotary electric magnet order about rotating shaft drive first connecting rod, make the first optical filter of the first filtering assembly the position be positioned at below light hole and away from the position below light hole between switch slide; This rotary electric magnet order about rotating shaft drive drive second connecting rod, make the second optical filter of the second filtering assembly the position be positioned at below light hole and away from the position below light hole between switch swing.
Compared to existing technology, the beneficial effects of the utility model are:
After drive unit drive shaft of the present utility model rotates, can synchronously drive first connecting rod and second connecting rod, but due to the other end of first connecting rod and the first framework hinged near one end of rotating shaft, second framework be rotatably assorted away from one end of rotating shaft and firm banking and the other end of second connecting rod and the second framework hinged near one end of rotating shaft, first connecting rod and the projection of second connecting rod on firm banking is simultaneously intersected, so the direction of motion of the first filtering assembly and the second filtering assembly will be contrary, thus realize the first optical filter the position be positioned at below light hole and away from the position below light hole between switch, second optical filter the position be positioned at below light hole and away from the position below light hole between switch, and then complete switching action fast, this switching action precision is high, life-span is long, avoid the problem that precision is low and the life-span is short that gear drive brings.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of switching device of optical fiber of the utility model;
Fig. 2 is the structural representation after a kind of switching device of optical fiber of the utility model removes fixed cap.
In figure: 1, fixed cap; 11, light hole; 12, sliver; 2, firm banking; 21, the second projection; 3, the first filtering assembly; 31, the first framework; 311, straight; 32, the first optical filter; 4, the second filtering assembly; 41, the second framework; 411, arc chute; 42, the second optical filter; 5, first connecting rod; 51, the first projection; 6, second connecting rod; 7, drive unit; 8, rotating shaft.
Embodiment
A kind of switching device of optical fiber as shown in Fig. 1 ~ 2, be applied in video camera/camera, comprise fixed cap 1, firm banking 2, the first filtering assembly 3, second filtering assembly 4 being all built in firm banking 2, first connecting rod 5, second connecting rod 6, drive unit 7 and the rotating shaft 8 by this drive unit 7 driven rotary, fixed cap 1 is covered in firm banking 2 upper end, and fixed cap 1 has light hole 11; First filtering assembly 3 comprises the first framework 31 and is laid on the first optical filter 32 in this first framework 31, one end and the rotating shaft 8 of first connecting rod 5 are fixed, the other end and first framework 31 of first connecting rod 5 are hinged near one end of rotating shaft 8, and the first framework 31 is also slidably matched with fixed cap 1; Second filtering assembly 4 comprises the second framework 41 and is laid on the second optical filter 42 in this second framework 41, second framework 41 is rotatably assorted away from one end of rotating shaft 8 and firm banking 2, one end and the rotating shaft 8 of second connecting rod 6 are fixed, and the other end and second framework 41 of second connecting rod 6 are hinged near one end of rotating shaft 8; First connecting rod 5 and the projection of second connecting rod 6 on firm banking 2 are intersected.
After drive unit 7 drive shaft 8 rotates, synchronously can drive first connecting rod 5 and second connecting rod 6, but due to the other end of first connecting rod 5 and the first framework 31 hinged near one end of rotating shaft 8, second framework 41 is rotatably assorted away from one end of rotating shaft 8 and firm banking 2, and the other end of second connecting rod 6 and the second framework 41 hinged near one end of rotating shaft 8, first connecting rod 5 and the projection of second connecting rod 6 on firm banking 2 is simultaneously intersected, so the direction of motion of the first filtering assembly 3 and the second filtering assembly 4 will be contrary, thus realize the first optical filter 32 the position be positioned at below light hole 11 and away from the position below light hole 11 between switch, second optical filter 42 the position be positioned at below light hole 11 and away from the position below light hole 11 between switch, both motions alternately, and then complete switching action fast.As long as the relative distance of adaptive first optical filter 32, second optical filter 42 of this process, and first connecting rod 5, second connecting rod 6 angle, just can complete the complete switching that puts in place after rotating shaft 8 is once rotated.Make the first optical filter 32 and the stable switching mutually of the second optical filter 42, can arrange the first optical filter 32 is infrared intercepting filter, is suitable for using daytime; Second optical filter 42 is set for not filter ultrared optical filter or other conventional optical filter, is suitable for using night.Light will penetrate from light hole 11, obtain filter action through the first optical filter 32 or the second optical filter 42.
In addition, drive unit 7 drive shaft 8 is once reversed action, and another time that just can realize the first optical filter 32 and the second optical filter 42 alternately switches.
For carrying out spacing to the sliding distance of the first filtering assembly 3, the other end vertical protrusion of first connecting rod 5 has the first projection 51, first framework 31 has the straight 311 be slidably matched with the first projection 51, the length direction of this straight 311 is vertical with the glide direction of the first framework 31.
For carrying out spacing to the rotary oscillation distance of the second filtering assembly 4, firm banking 2 has raised up the second projection 21, second framework 41 has the arc chute 411 be slidably matched with the second projection 21, the center of this arc chute 411 overlaps with the center of rotation of the second framework 41.
Fixed cap 1 provides the guiding that is slidably matched to the first framework 31, and the mode that available sliver 12 leads realizes, that is, fixed cap 1 is raised with the sliver 12 for carrying out slide-and-guide to the first framework 31 downwards; Second framework 41 realizes away from one end of rotating shaft 8 and the available articulated manner that is rotatably assorted of firm banking 2, that is, the second framework 41 away from one end of rotating shaft 8 and firm banking 2 hinged, this pin joint is the center of arc chute 411.
And in order to make switching action more rapidly accurately, drive unit 7 is rotary electric magnet, this rotary electric magnet orders about rotating shaft 8 and drives first connecting rod 5, make the first optical filter 32 of the first filtering assembly 3 the position be positioned at below light hole 11 and away from the position below light hole 11 between switch slide; This rotary electric magnet order about rotating shaft 8 drive drive second connecting rod 6, make the second optical filter 42 of the second filtering assembly 4 the position be positioned at below light hole 11 and away from the position below light hole 11 between switch swing.
Above-mentioned embodiment is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (6)
1. a switching device of optical fiber, it is characterized in that: comprise fixed cap, firm banking, the first filtering assembly being all built in firm banking, the second filtering assembly, first connecting rod, second connecting rod, drive unit and the rotating shaft by this drive unit driven rotary, fixed cap is covered in firm banking upper end, and fixed cap has light hole; First filtering assembly comprises the first framework and is laid on the first optical filter in this first framework, and one end and the rotating shaft of first connecting rod are fixed, and the other end and first framework of first connecting rod are hinged near one end of rotating shaft, and the first framework is also slidably matched with fixed cap; Second filtering assembly comprises the second framework and is laid on the second optical filter in this second framework, second framework is rotatably assorted away from one end of rotating shaft and firm banking, one end and the rotating shaft of second connecting rod are fixed, and the other end and second framework of second connecting rod are hinged near one end of rotating shaft; The projection on firm banking of first connecting rod and second connecting rod is intersected.
2. switching device of optical fiber according to claim 1, it is characterized in that: the other end vertical protrusion of described first connecting rod has the first projection, described first framework has the straight be slidably matched with the first projection, the length direction of this straight is vertical with the glide direction of the first framework.
3. switching device of optical fiber according to claim 2, is characterized in that: described fixed cap is raised with the sliver for carrying out slide-and-guide to the first framework downwards.
4. switching device of optical fiber according to claim 1, it is characterized in that: described firm banking has raised up the second projection, described second framework has the arc chute be slidably matched with the second projection, the center of this arc chute overlaps with the center of rotation of the second framework.
5. switching device of optical fiber according to claim 4, is characterized in that: described second framework away from one end of rotating shaft and firm banking hinged.
6. the switching device of optical fiber according to any one of Claims 1 to 5, it is characterized in that: described drive unit is rotary electric magnet, this rotary electric magnet order about rotating shaft drive first connecting rod, make the first optical filter of the first filtering assembly the position be positioned at below light hole and away from the position below light hole between switch slide; This rotary electric magnet order about rotating shaft drive drive second connecting rod, make the second optical filter of the second filtering assembly the position be positioned at below light hole and away from the position below light hole between switch swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519556.7U CN204065641U (en) | 2014-09-10 | 2014-09-10 | A kind of switching device of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519556.7U CN204065641U (en) | 2014-09-10 | 2014-09-10 | A kind of switching device of optical fiber |
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| Publication Number | Publication Date |
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| CN204065641U true CN204065641U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420519556.7U Active CN204065641U (en) | 2014-09-10 | 2014-09-10 | A kind of switching device of optical fiber |
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| CN (1) | CN204065641U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444001A (en) * | 2016-11-29 | 2017-02-22 | 中国科学院紫金山天文台 | Magnetic positioning replacement device for light filter |
| CN109471255A (en) * | 2018-11-26 | 2019-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of electromagnetic drive optical attenuator switching device and switching system |
| CN113985685A (en) * | 2021-10-20 | 2022-01-28 | 浙江大立科技股份有限公司 | Compact optical filter switching assembly, assembling method and application |
-
2014
- 2014-09-10 CN CN201420519556.7U patent/CN204065641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444001A (en) * | 2016-11-29 | 2017-02-22 | 中国科学院紫金山天文台 | Magnetic positioning replacement device for light filter |
| CN109471255A (en) * | 2018-11-26 | 2019-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of electromagnetic drive optical attenuator switching device and switching system |
| CN113985685A (en) * | 2021-10-20 | 2022-01-28 | 浙江大立科技股份有限公司 | Compact optical filter switching assembly, assembling method and application |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |