CN203084230U - Blue-glass optical filter - Google Patents
Blue-glass optical filter Download PDFInfo
- Publication number
- CN203084230U CN203084230U CN 201320054629 CN201320054629U CN203084230U CN 203084230 U CN203084230 U CN 203084230U CN 201320054629 CN201320054629 CN 201320054629 CN 201320054629 U CN201320054629 U CN 201320054629U CN 203084230 U CN203084230 U CN 203084230U
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- China
- Prior art keywords
- filter coating
- filter
- blue
- blooming
- titania
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Abstract
The utility model relates to a blue-glass optical filter. The blue-glass optical fiber provided by the utility model includes a substrate made of blue glass. A first filter coating is covered on one face of the substrate. A second filter coating is covered on the other face of the substrate. The first filter coating is formed by overlapping silica optical films and titanium dioxide optical films alternately. The second filter coating is also formed by overlapping silica optical films and titanium dioxide optical films alternately. The blue-glass optical fiber is characterized in that the total layer number of the silica optical films and the titanium dioxide optical films is 15 to 25 in the first filter coating while the total layer number of the silica optical films and the titanium dioxide optical films in the second filter coating is 15 to 25. Since the layer number of the first filter coating is approximate to the layer number of the second filter coating, stress produced by the two filter coating is comparatively uniform, a deformation effect is tiny and the filter coatings are not easy to hunch when the blue-glass optical fiber is in a cutting process, so that the quality of the blue-glass optical fiber is guaranteed.
Description
Technical field
The utility model relates to a kind of smalt optical filter.
Background technology
In cameras such as mobile phone, camera, be positioned at the preceding smalt optical filter of image sensor CCD or CMOS, effectively the filtering infrared ray also passes through luminous ray, thereby produces the image of normal color, is a key components in the camera.
The smalt optical filter comprises the substrate of being made by smalt, is coated with first filter coating in the one side of substrate, is coated with second filter coating at the another side of substrate; First filter coating alternately is formed by stacking by silicon dioxide blooming and titania optics film, and second filter coating also alternately is formed by stacking by silicon dioxide blooming and titania optics film.The filter coating that alternately is formed by stacking by silicon dioxide blooming and titania optics film has such optical function: when total number of plies of silicon dioxide blooming and titania optics film more for a long time, filter coating has the function of IR-cut; When total number of plies of silicon dioxide blooming and titania optics film more after a little while, filter coating has the function that increases light transmission.
The smalt optical filter of prior art, in first filter coating, total number of plies of silicon dioxide blooming and titania optics film is 5～9 layers, first filter coating has the function that increases light transmission; In second filter coating, total number of plies of silicon dioxide blooming and titania optics film is more than 40 layers, and second filter coating has the function of IR-cut.Because first filter coating and the second filter coating number of plies differ greatly, this smalt optical filter is when carrying out cutting action, and the unbalanced stress that two filter coatings produce is even, part stress is big, and a part of stress is little, makes deformation effect big, filter coating arches upward easily, influences the quality of optical filter.
The utility model content
Technical problem to be solved in the utility model be overcome deficiency of the prior art and a kind of reasonable in design is provided, filter coating produces when cutting action the uniform smalt optical filter of stress.
The technical scheme in the invention for solving the above technical problem is: a kind of smalt optical filter, comprise the substrate of making by smalt, and be coated with first filter coating in the one side of substrate, be coated with second filter coating at the another side of substrate; First filter coating alternately is formed by stacking by silicon dioxide blooming and titania optics film, and second filter coating also alternately is formed by stacking by silicon dioxide blooming and titania optics film; It is characterized in that: in first filter coating, total number of plies of silicon dioxide blooming and titania optics film is 15～25 layers; In second filter coating, total number of plies of silicon dioxide blooming and titania optics film is 15～25 layers.
In the utility model first filter coating, total number of plies of silicon dioxide blooming and titania optics film is 18 layers; In second filter coating, total number of plies of silicon dioxide blooming and titania optics film is 20 layers.
The utility model compared with prior art, have following advantage and effect: because first filter coating and the second filter coating number of plies are more or less the same, the utility model is when carrying out cutting action, the stress that two filter coatings produce is more even, deformation effect is little, filter coating is not easy to arch upward, and has guaranteed the quality of optical filter.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Referring to Fig. 1, the utility model embodiment substrate 1, substrate 1 are made by smalt.
Being coated with first filter coating, 2, the first filter coatings 2 in the one side of substrate 1 alternately is formed by stacking by silicon dioxide blooming 3 and titania optics film 4.In first filter coating 2, total number of plies of silicon dioxide blooming 3 and titania optics film 4 is 15～25 layers, and this total number of plies makes first filter coating 2 both have the function of IR-cut, has the function that increases light transmission again.
Being coated with second filter coating, 5, the second filter coatings 5 at the another side of substrate 1 also alternately is formed by stacking by silicon dioxide blooming 3 and titania optics film 4.In second filter coating 5, total number of plies of silicon dioxide blooming and titania optics film is 15～25 layers, and this total number of plies makes second filter coating 5 both have the function of IR-cut, has the function that increases light transmission again.
Optimize, in first filter coating 2, total number of plies of silicon dioxide blooming 3 and titania optics film 4 is 18 layers; Simultaneously, in second filter coating 5, total number of plies of silicon dioxide blooming 3 and titania optics film 4 is 20 layers.
First filter coating 2 had both had the function of IR-cut, had the function that increases light transmission again, and simultaneously, second filter coating 5 had both had the function of IR-cut, had the function that increases light transmission again, therefore can not influence the optical characteristics of smalt optical filter.
Because first filter coating 2 and second filter coating, 5 numbers of plies are more or less the same, the utility model is when carrying out cutting action, and the stress that two filter coatings produce is more even, and deformation effect is little, and filter coating is not easy to arch upward, and has guaranteed the quality of optical filter.
Claims (2)
1. a smalt optical filter comprises the substrate of being made by smalt, is coated with first filter coating in the one side of substrate, is coated with second filter coating at the another side of substrate; First filter coating alternately is formed by stacking by silicon dioxide blooming and titania optics film, and second filter coating also alternately is formed by stacking by silicon dioxide blooming and titania optics film; It is characterized in that: in first filter coating, total number of plies of silicon dioxide blooming and titania optics film is 15～25 layers; In second filter coating, total number of plies of silicon dioxide blooming and titania optics film is 15～25 layers.
2. smalt optical filter according to claim 1 is characterized in that: in first filter coating, total number of plies of silicon dioxide blooming and titania optics film is 18 layers; In second filter coating, total number of plies of silicon dioxide blooming and titania optics film is 20 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054629 CN203084230U (en) | 2013-01-31 | 2013-01-31 | Blue-glass optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054629 CN203084230U (en) | 2013-01-31 | 2013-01-31 | Blue-glass optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084230U true CN203084230U (en) | 2013-07-24 |
Family
ID=48830054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054629 Expired - Fee Related CN203084230U (en) | 2013-01-31 | 2013-01-31 | Blue-glass optical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203084230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049292A (en) * | 2014-06-27 | 2014-09-17 | 温岭市现代晶体有限公司 | Ultraviolet-infrared cut-off optical filter |
| CN108989526A (en) * | 2018-08-15 | 2018-12-11 | 北京小米移动软件有限公司 | Casing and preparation method thereof, intelligent terminal |
-
2013
- 2013-01-31 CN CN 201320054629 patent/CN203084230U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049292A (en) * | 2014-06-27 | 2014-09-17 | 温岭市现代晶体有限公司 | Ultraviolet-infrared cut-off optical filter |
| CN108989526A (en) * | 2018-08-15 | 2018-12-11 | 北京小米移动软件有限公司 | Casing and preparation method thereof, intelligent terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20180131 |