CN212364635U - Absorption type infrared cut-off filter - Google Patents
Absorption type infrared cut-off filter Download PDFInfo
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- CN212364635U CN212364635U CN202021194108.6U CN202021194108U CN212364635U CN 212364635 U CN212364635 U CN 212364635U CN 202021194108 U CN202021194108 U CN 202021194108U CN 212364635 U CN212364635 U CN 212364635U
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Abstract
The utility model discloses an absorption type infrared cut-off filter, which comprises a substrate, the top fixedly connected with infrared cut-off rete of base plate, the bottom fixedly connected with adhesive linkage of base plate, the bottom fixedly connected with absorbed layer of adhesive linkage, absorbed layer bottom fixedly connected with filter layer through setting up the adhesive linkage, can effectual improvement base plate and the bonding fastness between the absorbed layer, through setting up the absorbed layer, can improve the ability of absorbed light source, through setting up infrared cut-off rete, can improve the ability of cutting off the infrared light source, through setting up the tin dioxide coating, can improve the transmissivity of visible light, have higher reflectivity again in infrared and far infrared region. The substrate, the infrared cut-off film layer, the filter layer, the absorption layer, the bonding layer, the tin dioxide coating and the iron oxide red coating are matched for use, and the infrared cut-off film has the advantages of being good in imaging effect and strong in light source absorption capacity, and has the infrared light source cutting-off capacity.
Description
Technical Field
The utility model relates to a light filter technical field specifically is an absorption type infrared cut-off filter.
Background
Filters are optical devices used to select a desired wavelength band of radiation. One common property of filters is that no filter can make the imaging of celestial objects brighter, since all filters absorb certain wavelengths, thereby making the object darker.
The infrared cut-off filter is one kind of filter, it can filter the infrared band, can prevent the infrared ray from passing through the camera lens of the camera and causing the picture distortion, the existing infrared cut-off filter cuts off the problem that the infrared light source ability is poor and causes the problem of the formation of image colour cast, and absorb the light source ability not good moreover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an absorption type infrared cut-off filter possesses to be distinguished and forms images effectually by infrared light source ability, and the current infrared cut-off filter has been solved to the advantage that absorption light source ability is strong, and consequently the relatively poor problem that arouses formation of image look partially, the not good problem of absorption light source ability by infrared light source ability.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an absorption type infrared cut-off filter, includes the base plate, the top fixedly connected with infrared cut-off rete of base plate, the bottom fixedly connected with adhesive linkage of base plate, the bottom fixedly connected with absorbed layer of adhesive linkage, absorbed layer bottom fixedly connected with filter layer.
Preferably, the substrate is made of white glass, and the absorption layer is made of organic matter.
Preferably, the filter layer comprises a tin dioxide coating and an iron oxide red coating.
Preferably, the infrared cut-off film layer is formed by alternately depositing and plating a high-refractive-index material layer and a low-refractive-index material layer, and the plating thickness is 5um-7 um.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a cooperation that sets up base plate, infrared by rete, filter layer, absorbed layer, adhesive linkage, tin dioxide coating and iron oxide red coating is used, possesses to be by infrared light source ability outstanding formation of image effectual, and the advantage that the absorbed light source ability is strong is worth promoting.
2. The utility model can effectively improve the bonding firmness between the substrate and the absorption layer by arranging the bonding layer;
the absorption layer can improve the capacity of absorbing the light source;
the infrared light source cutting capability can be improved by arranging the infrared cutting film layer;
the tin dioxide coating can improve the transmittance of visible light and has higher reflectivity in infrared and far infrared regions;
by arranging the iron oxide red coating, the durability of the infrared cut-off filter can be improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a front sectional view of the filter layer of the present invention.
In the figure: 1 substrate, 2 infrared cut-off film layers, 3 filter layers, 4 absorption layers, 5 bonding layers, 6 tin dioxide coatings and 7 iron oxide red coatings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a parts such as base plate 1, infrared stop rete 2, filter layer 3, absorbed layer 4, adhesive linkage 5, tin dioxide coating 6 and iron oxide red coating 7 are the parts that general standard component or field technical personnel know, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for field technical personnel.
Referring to fig. 1-2, an absorption-type ir-cut filter includes a substrate 1, an ir-cut film layer 2 fixedly connected to the top of the substrate 1, an adhesive layer 5 fixedly connected to the bottom of the substrate 1, an absorption layer 4 fixedly connected to the bottom of the adhesive layer 5, and a filter layer 3 fixedly connected to the bottom of the absorption layer 4;
the substrate 1 is made of white glass, and the absorption layer 4 is made of organic matters;
the filter layer 3 comprises a tin dioxide coating 6 and an iron oxide red coating 7;
the infrared cut-off film layer 2 is formed by alternately depositing and plating a high-refractive-index material layer and a low-refractive-index material layer, and the plating thickness is 5-7 um;
the bonding firmness between the substrate 1 and the absorption layer 4 can be effectively improved by arranging the bonding layer 5;
the absorption layer 4 can improve the capability of absorbing the light source;
the infrared light source cutting capability can be improved by arranging the infrared cutting film layer 2;
the tin dioxide coating 6 can improve the transmittance of visible light and has higher reflectivity in infrared and far infrared regions;
by providing the iron oxide red coating layer 7, the durability of the infrared cut filter can be improved.
During the use, through setting up adhesive linkage 5, bonding fastness between can effectual improvement base plate 1 and the absorbed layer 4, through setting up absorbed layer 4, can improve the ability of absorption light source, through setting up infrared cut-off rete 2, can improve the ability of cutting off the infrared light source, through setting up tin dioxide coating 6, can improve the transmissivity of visible light, have higher reflectivity again in infrared and far infrared region, through setting up iron oxide red coating 7, can improve the durability of this infrared cut-off filter.
In summary, the following steps: the absorption type infrared cut-off filter solves the problems that the existing infrared cut-off filter has poor infrared light source cutting-off capacity and therefore causes imaging color cast and poor absorption light source capacity through the matching use of the substrate 1, the infrared cut-off film layer 2, the filter layer 3, the absorption layer 4, the bonding layer 5, the tin dioxide coating 6 and the iron oxide red coating 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An absorption-type infrared cut filter comprising a substrate (1), characterized in that: the infrared cut-off film layer (2) of top fixedly connected with of base plate (1), the bottom fixedly connected with adhesive linkage (5) of base plate (1), the bottom fixedly connected with absorbed layer (4) of adhesive linkage (5), absorbed layer (4) bottom fixedly connected with filter layer (3).
2. An absorbing infrared cut filter according to claim 1, characterized in that: the substrate (1) is made of white glass, and the absorption layer (4) is made of organic matters.
3. An absorbing infrared cut filter according to claim 1, characterized in that: the filter layer (3) comprises a tin dioxide coating (6) and an iron oxide red coating (7).
4. An absorbing infrared cut filter according to claim 1, characterized in that: the infrared cut-off film layer (2) is formed by alternately depositing and plating a high-refractive-index material layer and a low-refractive-index material layer, and the plating thickness is 5-7 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194108.6U CN212364635U (en) | 2020-06-24 | 2020-06-24 | Absorption type infrared cut-off filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194108.6U CN212364635U (en) | 2020-06-24 | 2020-06-24 | Absorption type infrared cut-off filter |
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| CN212364635U true CN212364635U (en) | 2021-01-15 |
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| CN202021194108.6U Active CN212364635U (en) | 2020-06-24 | 2020-06-24 | Absorption type infrared cut-off filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019599A (en) * | 2021-10-29 | 2022-02-08 | 浙江京浜光电科技有限公司 | Low-stress blue glass infrared cut-off filter and production method thereof |
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2020
- 2020-06-24 CN CN202021194108.6U patent/CN212364635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019599A (en) * | 2021-10-29 | 2022-02-08 | 浙江京浜光电科技有限公司 | Low-stress blue glass infrared cut-off filter and production method thereof |
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