CN203606526U - Optical filter - Google Patents
Optical filter Download PDFInfo
- Publication number
- CN203606526U CN203606526U CN201320618911.1U CN201320618911U CN203606526U CN 203606526 U CN203606526 U CN 203606526U CN 201320618911 U CN201320618911 U CN 201320618911U CN 203606526 U CN203606526 U CN 203606526U
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- China
- Prior art keywords
- rectangular frame
- optical
- installation portion
- filtering body
- optical filter
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- 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 - Lifetime
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- 230000003287 optical effect Effects 0.000 title claims abstract description 86
- 238000009434 installation Methods 0.000 claims abstract description 45
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 239000013078 crystal Substances 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims description 6
- 239000007767 bonding agent Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000005304 optical glass Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The utility model provides an optical filter and belongs to the optical technical field. The optical filter solves the problems of easy edge breakage, easy pollution of a main plane of the optical filer, poor shooting quality, poor reliability and the poor dustproof effect; and the problems are caused by that an existing optical filer is composed of two pieces of glass, and that a seam exists between the two pieces of glass. The optical filer comprises a rectangular frame and a rectangular optical filtering body, the rectangular frame is equipped with an installation groove inside, the rectangular optical filtering body is arranged in the installation groove, the rectangular frame is provided with a fixing structure, the optical filtering body is made of optical crystal, the middle part of the optical filtering body is provided with a midline, a part located on one side of the midline is processed to be optical crystal I, a part located on the other side of the midline is processed to be optical crystal II, and the rectangular frame is further provided with a support structure. The optical filter of high installation precision eliminates the seam and the edge breakage, puts an end to the problem of neglected installation of one piece of optical filer and is conductive to automatic surface mounting, so labor cost of the surface mounting is greatly lowered, objects of false-color reduction, moire pattern elimination and picture sharpness reduction can be achieved, and the optical filter also has the advantages of high reliability and the good dustproof effect.
Description
Technical field
The utility model belongs to optical technical field, relates to a kind of optical filter, particularly a kind of video camera optical filter.
Background technology
Thermal camera is a kind of common electronic monitoring equipment, the front end of its camera lens case is provided with optical filter, in common thermal camera, optical filter only has one, this thermal camera in the course of the work, easily be subject to the interference of occurring in nature infrared light sources daytime and cause the problem of CCD imaging colour cast, evening, result of use was unsatisfactory because of visible ray disturbing effect shooting effect.In order all to obtain good image under lamp and infrared light supply, someone adopts the mode of the optical filter that day and night automatically switches: by day, optical filter is switched to the pattern of cut-off infrared light, prevents entering of infrared light; At night, optical filter is switched to the infrared pattern of sense, makes to occur better shooting effect night.
In order to realize the automatic switchover of optical filter, existing way is the switching device shifter that infrared fileter is set in video camera, by day time, cutoff filter is switched to photosensitive sites; When evening, be switched to photosensitive sites by infrared by optical filter.The drives structure that this switching device of optical fiber mainly comprises slide, is located at the optical filter on slide and drives optical filter to move along slide, wherein optical filter is made up of framework and two filter glasses that are positioned at framework, filter glass is independent body, needs workman respectively two filter glasses to be encased on framework.But still there is following shortcoming in this optical filter: due to the small volume of optical filter, after first a slice filter glass being fixed, again another sheet filter glass is fixed on framework, and on framework for install and the mounting groove size of fixing optical filter certain, when second filter glass is installed, can cause two filter glasses to bump and produce extruding, cause the principal plane that collapses limit and pollute optical filter, installation accuracy is poor, filter glass is damaged, glass of color filter of easy neglected loading when dress pastes, yield rate is low, thereby the problem of impact shooting quality, while mounting, need manual operation, its inefficiency, labour cost is high.
For this reason, the applicant has invented a kind of optical filter and has efficiently solved the problems referred to above, it unites two into one two tablet filter glass, adds man-hour, after first optical glass one being processed, processing optical glass two on same optical filter again, eliminate seam and collapsed limit, having stopped the problem of an optical filter of neglected loading, being conducive to robotization and mounting, thereby significantly reduce the cost of labor mounting, this patent further improves on the basis of this optical filter.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed that a kind of reliability is high, the optical filter of good dustproof effect.
The purpose of this utility model can realize by following technical proposal:
A kind of optical filter, comprise that inside has the rectangular frame of mounting groove and is located at the rectangle optical filtering body in mounting groove, the thickness of described optical filtering body is less than the thickness of rectangular frame, described rectangular frame is provided with for optical filtering body is fixed on to the fixed sturcture in mounting groove, it is characterized in that, described optical filtering body is made up of optics crystal, its middle part has center line, the part that is positioned at center line one side is processed into optics crystal one, the part that is positioned at center line opposite side is processed into optics crystal two, is also provided with supporting construction on described rectangular frame.
Optics crystal one is different from the transmittance of optics crystal two, and one is applicable to daytime, and another is applicable to night, add man-hour, after first optics crystal one being processed, then processing optical crystal two on same optical filtering body, optics crystal one and optics crystal two are worked on same optical filtering body.
In above-mentioned optical filter, described fixed sturcture comprises the installation portion one that lays respectively at mounting groove sidewall, installation portion two, installation portion three and installation portion four, described installation portion one and installation portion three are oppositely arranged and lay respectively at the short end of rectangular frame, described installation portion two and installation portion four are oppositely arranged and lay respectively at the long limit end of rectangular frame, described installation portion one, installation portion two, the upper surface of installation portion three and installation portion four forms a mounting plane, one side and this mounting plane of above-mentioned optical filtering body fit, between described mounting plane and optical filtering body, be provided with bonding agent.
In above-mentioned optical filter, described supporting construction comprises the some support bars one that are positioned at rectangular frame one side and the some support bars two that are positioned at rectangular frame opposite side, some described support bars one are uniformly distributed and lay respectively at two long sides of optical filtering body, some described support bars two are uniformly distributed and lay respectively at two long sides of optical filtering body, described support bar one extends along the moving direction of rectangular frame, and described support bar two also extends along the moving direction of rectangular frame.
In above-mentioned optical filter, one end that described rectangular frame is positioned at minor face is provided with extension, and described extension is provided with hole clipping.
In above-mentioned optical filter, the edge of described rectangular frame is provided with 4 and is circular-arc support portion, first support portion wherein and second support zone are in a long side of rectangular frame, the 3rd support zone is in another long side of rectangular frame, and the 4th support zone is on the sidewall of above-mentioned extension.
Compared with prior art, this optical filter has the following advantages:
Eliminate seam and collapsed limit, having stopped the problem of an optical filter of neglected loading, being conducive to robotization and mounting, thereby significantly having reduced the cost of labor mounting; Optical filter is made up of optics crystal, utilizes the birefringent characteristic of crystal, reduces false colour, eliminates moire fringes, reduces picture acutance; And crystal has piezoelectric property, there is better dust reduction capability; Optics crystal is than more flexible of optical glass, and impact resistance performance is good, guarantees the reliability of optical filter in the time of work.
Accompanying drawing explanation
Fig. 1 is the vertical view of a kind of preferred embodiment of providing of the utility model.
Fig. 2 is the upward view of a kind of preferred embodiment of providing of the utility model.
In figure, 1, rectangular frame; 11, extension; 12, hole clipping; 21, center line; 22, optics crystal one; 23, optics crystal two; 31, installation portion one; 32, installation portion two; 33, installation portion three; 34, installation portion four; 41, support bar one; 42, support bar two; 51, support portion.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
This optical filter, be located in the slide of switching device of optical fiber, as shown in Figure 1, it comprises that inside has the rectangular frame 1 of mounting groove and is located at the optical filtering body in mounting groove, the thickness of optical filtering body is less than the thickness of rectangular frame 1, and rectangular frame 1 is provided with for optical filtering body is fixed on to the fixed sturcture in mounting groove.
As shown in Figure 1, fixed sturcture comprises the installation portion 1, installation portion 2 32, installation portion 3 33 and the installation portion 4 34 that lay respectively at mounting groove sidewall, installation portion 1 and installation portion 3 33 are oppositely arranged and lay respectively at the short end of rectangular frame 1, installation portion 2 32 and installation portion 4 34 are oppositely arranged and lay respectively at the long limit end of rectangular frame 1, the upper surface of installation portion 1, installation portion 2 32, installation portion 3 33 and installation portion 4 34 forms a mounting plane, one side and this mounting plane of optical filtering body fit, and between mounting plane and optical filtering body, are provided with bonding agent.
As depicted in figs. 1 and 2, the middle part of optical filtering body has center line 21, and two-part shape is identical, equal and opposite in direction, and the part that is positioned at center line 21 1 sides is processed into optics crystal 1, and the part that is positioned at center line 21 opposite sides is processed into optics crystal 2 23.Add man-hour, after first optics crystal 1 being processed, processing optical crystal 2 23 on same optical filtering body again, optics crystal 1 and optics crystal 2 23 are worked on same optical filtering body, eliminate seam and collapsed limit, stop the problem of an optical filter of neglected loading, be conducive to robotization and mount, thereby significantly reduce the cost of labor mounting.
In the present embodiment, on rectangular frame 1, be also provided with supporting construction.
Concrete, as depicted in figs. 1 and 2, supporting construction comprises the some support bars 1 that are positioned at rectangular frame 1 one sides and the some support bars 2 42 that are positioned at rectangular frame 1 opposite side, as shown in Figure 1, some support bars 1 are uniformly distributed and lay respectively at two long sides of optical filtering body, and as shown in Figure 2, support bar 2 42 is uniformly distributed and lays respectively at two long sides of optical filtering body, support bar 1 extends along the moving direction of rectangular frame 1, and support bar 2 42 also extends along the moving direction of rectangular frame 1.Support bar 1 and support bar 2 42 can play a supportive role to rectangular frame 1, reduce the wearing and tearing of rectangular frame 1, but also rectangular frame 1 is play the guiding role, precision when raising rectangular frame 1 moves.
As shown in Figure 1, support bar 1 is 4.
As shown in Figure 2, support bar 2 42 is 2.
As depicted in figs. 1 and 2, one end that rectangular frame 1 is positioned at minor face is provided with extension 11, and extension 11 is provided with hole clipping 12.
As depicted in figs. 1 and 2, be provided with 4 at the edge of rectangular frame 1 and be circular-arc support portion 51, first support portion 51 wherein and second support portion 51 are positioned at a long side of rectangular frame 1, the 3rd support portion 51 is positioned at another long side of rectangular frame 1, and the 4th support portion 51 is positioned on the sidewall of above-mentioned extension 11.Support portion 51 reduces the wearing and tearing of rectangular frame 1, has improved the serviceable life of rectangular frame 1.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. an optical filter, comprise that inside has the rectangular frame of mounting groove (1) and is located at the rectangle optical filtering body in mounting groove, the thickness of described optical filtering body is less than the thickness of rectangular frame (1), described rectangular frame (1) is provided with for optical filtering body is fixed on to the fixed sturcture in mounting groove, it is characterized in that, described optical filtering body is made up of optics crystal, its middle part has center line (21), the part that is positioned at center line (21) one sides is processed into optics crystal one (22), the part that is positioned at center line (21) opposite side is processed into optics crystal two (23), on described rectangular frame (1), be also provided with supporting construction.
2. according to a kind of optical filter shown in claim 1, it is characterized in that, described fixed sturcture comprises the installation portion one (31) that lays respectively at mounting groove sidewall, installation portion two (32), installation portion three (33) and installation portion four (34), described installation portion one (31) and installation portion three (33) are oppositely arranged and lay respectively at the short end of rectangular frame (1), described installation portion two (32) and installation portion four (34) are oppositely arranged and lay respectively at the long limit end of rectangular frame (1), described installation portion one (31), installation portion two (32), the upper surface of installation portion three (33) and installation portion four (34) forms a mounting plane, one side and this mounting plane of above-mentioned optical filtering body fit, between described mounting plane and optical filtering body, be provided with bonding agent.
3. according to a kind of optical filter shown in claim 1, it is characterized in that, described supporting construction comprises the some support bars two (42) that are positioned at some support bars one (41) of rectangular frame (1) one side and are positioned at rectangular frame (1) opposite side, some described support bars one (41) are uniformly distributed and lay respectively at two long sides of optical filtering body, some described support bars two (42) are uniformly distributed and lay respectively at two long sides of optical filtering body, described support bar one (41) extends along the moving direction of rectangular frame (1), described support bar two (42) also extends along the moving direction of rectangular frame (1).
4. according to a kind of optical filter shown in claim 1 or 2 or 3, it is characterized in that, one end that described rectangular frame (1) is positioned at minor face is provided with extension (11), and described extension (11) is provided with hole clipping (12).
5. according to a kind of optical filter shown in claim 4, it is characterized in that, the edge of described rectangular frame (1) is provided with 4 and is circular-arc support portion (51), first support portion (51) wherein and second support portion (51) are positioned at a long side of rectangular frame (1), the 3rd support portion (51) is positioned at another long side of rectangular frame (1), and the 4th support portion (51) is positioned on the sidewall of above-mentioned extension (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320618911.1U CN203606526U (en) | 2013-10-09 | 2013-10-09 | Optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320618911.1U CN203606526U (en) | 2013-10-09 | 2013-10-09 | Optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606526U true CN203606526U (en) | 2014-05-21 |
Family
ID=50719191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320618911.1U Expired - Lifetime CN203606526U (en) | 2013-10-09 | 2013-10-09 | Optical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035177A (en) * | 2014-06-12 | 2014-09-10 | 中国科学院上海技术物理研究所 | Narrow-slit spliced assembly of multi-waveband filters applied at low temperature |
-
2013
- 2013-10-09 CN CN201320618911.1U patent/CN203606526U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035177A (en) * | 2014-06-12 | 2014-09-10 | 中国科学院上海技术物理研究所 | Narrow-slit spliced assembly of multi-waveband filters applied at low temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317500 No. 7, science and technology road, Wenling Economic Development Zone, Zhejiang, Taizhou Patentee after: ZHEJIANG MDK MODERN PHOTOELECTRIC CO.,LTD. Address before: 317500 No. 7, science and technology road, Wenling Economic Development Zone, Zhejiang, Taizhou Patentee before: Wenling Modern Crystal Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |