CN206638843U - A kind of mobile phone white glass day and night optical filter - Google Patents
A kind of mobile phone white glass day and night optical filter Download PDFInfo
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- CN206638843U CN206638843U CN201720316047.8U CN201720316047U CN206638843U CN 206638843 U CN206638843 U CN 206638843U CN 201720316047 U CN201720316047 U CN 201720316047U CN 206638843 U CN206638843 U CN 206638843U
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Abstract
The utility model discloses a kind of mobile phone white glass day and night optical filter, include near infrared absorption film one, near infrared absorption film two, white glass and binary channels filter coating successively from top to bottom, the absorbing wavelength scope of described a pair of infrared lights of near infrared absorption film is 880~930nm, and the near infrared absorption film two is 700~780nm to the absorbing wavelength scope of infrared light.The utility model has solved the problems, such as that the refraction film number of plies is excessive on white glass day and night optical filter.
Description
Technical field
It the utility model is related to a kind of optical filter, and in particular to a kind of mobile phone white glass day and night optical filter.
Background technology
Day and night optical filter be can by a visible band and the optical filter of an infrared light band, be mainly used in CCD or
In cmos imaging system, daytime can obtain true color image, can obtain clearly black white image at night, digital camera,
The picture pick-up devices such as digital video recorder, monitoring camera, computer camera, mobile phone camera, videophone and infrared induction are led
Domain has a wide range of applications.In the prior art, day and night optical filter needs the low refraction film of multilayer and high refraction film to be superimposed and
Binary channels effect is realized, in order to adapt to the demand of reality shooting, for the number of plies of refraction film often more than 80 layers, this causes day and night two
Uprised with the production cost and technical threshold of film, and film layer number is more, the probability that film comes off is bigger.
Utility model content
The utility model provides a kind of mobile phone white glass day and night optical filter, by the upper end of binary channels filter coating
Near infrared absorption film one and near infrared absorption film two are set, solve the refraction film number of plies on existing white glass day and night optical filter
The problem of excessive.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of mobile phone white glass day and night optical filter, include near infrared absorption film one, near-infrared successively from top to bottom
Absorbing film two, white glass and binary channels filter coating, the absorbing wavelength scope of described a pair of infrared lights of near infrared absorption film for 880~
930nm, the near infrared absorption film two are 700~780nm to the absorbing wavelength scope of infrared light；Day and night optical filter needs
Two wave-length coverages of 440~640nm and 830~860nm optical channel, near infrared absorption film one and near infrared absorption film two are first
Ambient light is tentatively filtered, reduces volume reflection of the binary channels filter coating to ambient.
Further, to be better achieved the utility model, the binary channels filter coating by the low refraction film of silica and
Titanium dioxide high refraction film is overlapping to be formed, and the first layer of binary channels filter coating and last layer are the low refraction film of silica.
Further, to be better achieved the utility model, the near infrared absorption film one is phthalocyanines polymeric membrane, institute
It is cyanines family macromolecule film to state near infrared absorption film two.
Further, to be better achieved the utility model, the number of plies of the low refraction film of the silica is 13~27 layers；
Because near infrared absorption film one and near infrared absorption film two have carried out preliminary filtering to ambient light, so the low refraction film of silica
25~53 layers are only needed altogether with titanium dioxide with regard to functional need can be reached.
The beneficial effects of the utility model：
The utility model coordinates binary channels filter coating to filter light using near infrared absorption film, forms binary channels institute
The refraction film number of plies needed is few, reduces cost of the present utility model, reduces difficulty of processing of the present utility model, and film comes off probability
Diminish, physical life extends.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the structural representation of binary channels filter coating 4 of the present utility model.
Symbol description in figure：Near infrared absorption film 1, near infrared absorption film 22, white glass 3, binary channels filter coating 4, two
The low refraction film 5 of silica, titanium dioxide high refraction film 6.
Embodiment
The utility model specific embodiment is described further referring to the drawings.
A kind of mobile phone white glass day and night optical filter, include near infrared absorption film 1, near-infrared successively from top to bottom
Absorbing film 22, white glass 3 and binary channels filter coating 4, the absorbing wavelength scope of described one 1 pairs of infrared lights of near infrared absorption film are
880~930nm, the absorbing wavelength scope of described 22 pairs of infrared lights of near infrared absorption film is 700~780nm.
Further, for the utility model is better achieved, the binary channels filter coating 4 is by the low refraction film 5 of silica
With titanium dioxide high refraction film 6 is overlapping forms, the first layer of binary channels filter coating 4 and last layer are the low refraction film of silica
5。
Further, for the utility model is better achieved, the near infrared absorption film 1 is phthalocyanines polymeric membrane,
The near infrared absorption film 22 is cyanines family macromolecule film.
Further, to be better achieved the utility model, the number of plies of the low refraction film 5 of the silica is 13~27
Layer.
Concrete operating principle of the present utility model：
The utility model at work, when ambient light first passes through near infrared absorption film 1 and near infrared absorption film 22, outside
Boundary's light medium wavelength range is that 880~930nm and 700~780nm infrared light is absorbed, and forms 0~700nm and 780~880nm
The optical channel of wavelength, then filtered by binary channels filter coating 4, the optical channel of 440~640nm and 830~860nm wavelength is formed,
The optical channel of 440~640nm wavelength uses when being worked by day for video camera, and the optical channel of 830~860nm wavelength supplies video camera night
Between work use.
The scope of protection of the utility model is not limited merely to above-described embodiment, all skills belonged under the utility model thinking
Art scheme belongs to the scope of protection of the utility model.It should be pointed out that for those skilled in the art,
Some improvements and modifications under the premise of the utility model principle are not departed from, these improvements and modifications also should be regarded as of the present utility model
Protection domain.
Claims (4)
1. a kind of mobile phone white glass day and night optical filter, it is characterised in that include near infrared absorption film successively from top to bottom
One (1), near infrared absorption film two (2), white glass (3) and binary channels filter coating (4), the near infrared absorption film one (1) is to red
The absorbing wavelength scope of outer light is 880~930nm, and the near infrared absorption film two (2) is to the absorbing wavelength scope of infrared light
700~780nm.
A kind of 2. mobile phone according to claim 1 white glass day and night optical filter, it is characterised in that the binary channels
Filter coating (4) is formed by the low refraction film of silica (5) and titanium dioxide high refraction film (6) are overlapping, binary channels filter coating (4)
First layer and last layer are the low refraction film (5) of silica.
A kind of 3. mobile phone according to claim 1 white glass day and night optical filter, it is characterised in that the near-infrared
Absorbing film one (1) is phthalocyanines polymeric membrane, and the near infrared absorption film two (2) is cyanines family macromolecule film.
A kind of 4. mobile phone according to claim 2 white glass day and night optical filter, it is characterised in that the titanium dioxide
The number of plies of the low refraction film of silicon (5) is 13~27 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720316047.8U CN206638843U (en) | 2017-03-29 | 2017-03-29 | A kind of mobile phone white glass day and night optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720316047.8U CN206638843U (en) | 2017-03-29 | 2017-03-29 | A kind of mobile phone white glass day and night optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638843U true CN206638843U (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720316047.8U Active CN206638843U (en) | 2017-03-29 | 2017-03-29 | A kind of mobile phone white glass day and night optical filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN206638843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007169A1 (en) * | 2018-07-04 | 2020-01-09 | 南昌欧菲生物识别技术有限公司 | Filtering assembly, camera module, image capturing device and electronic device |
-
2017
- 2017-03-29 CN CN201720316047.8U patent/CN206638843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007169A1 (en) * | 2018-07-04 | 2020-01-09 | 南昌欧菲生物识别技术有限公司 | Filtering assembly, camera module, image capturing device and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310000 No. 578, 20 Baiyang Street, Hangzhou Economic and Technological Development Zone, Hangzhou, Zhejiang Province Patentee after: Hangzhou meidikai Photoelectric Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 poplar in Jianggan District economic and Technological Development Zone Street No. 20 Street No. 578 building 3 Patentee before: Hangzhou Meidi Kay Photoelectric Technology Co. Ltd. |
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| CP03 | Change of name, title or address |