CN204479784U - A kind of six wavelength narrow band micro light-filters - Google Patents
A kind of six wavelength narrow band micro light-filters Download PDFInfo
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- CN204479784U CN204479784U CN201520194278.7U CN201520194278U CN204479784U CN 204479784 U CN204479784 U CN 204479784U CN 201520194278 U CN201520194278 U CN 201520194278U CN 204479784 U CN204479784 U CN 204479784U
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Abstract
The utility model discloses a kind of six wavelength narrow band micro light-filters, comprise light-transmissive substrate, a surface of described light-transmissive substrate is that periodic arrangement is coated with some Microfiltration Unit by certain arrangement mode, described Microfiltration Unit has six pixels being coated with arrowband film system respectively and being formed, the geometric configuration of described pixel and measure-alike, is coated with chromium rete between described pixel.The utility model can obtain the image of six different wave lengths simultaneously, because being coated with chromium rete between each pixel, avoid the cross-talk problem between the printing opacity in gap between different pixels and pixel, again because Microfiltration Unit is coated on the same side of light-transmissive substrate, avoid the aberration that light transmission light-transmissive substrate causes.
Description
Technical field
The utility model relates to optical technical field, is specifically related to a kind of six wavelength narrow band micro light-filters.
Background technology
The market demands of many industrial circles obtain corresponding multiple image under different wave length condition, and the apparatus that traditional monochromatic light obtains has two critical pieces: one is monochrome image sensor; Second is the huge optical lightscreening of costliness or beam splitter, optical filtering, beam splitter need very large space length the light of different wave length could be separated, this apparatus volume making to adopt traditional multi-optical spectrum imaging technology to be formed is huge, heavy, cannot export in real time.To when needing the view data obtaining multiple wavelength, need constantly to repeat to adjust the centre wavelength of light filter by band, until the image corresponding to multiple different wave length all generates.Meanwhile, light splitting, optical filtering physical construction are very easily impaired, cannot use in rugged surroundings (as thump, concussion, explosion environment).
Use micro-multispectral technology by miniature for arrowband filtering device and optical image sensor integrated, the image that single exposure obtains several different wave lengths simultaneously can be realized, in the image obtained, any one pixel all contains the corresponding gray-scale value of several wavelength, directly can obtain the image of different wave length.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of six wavelength narrow band micro light-filters, can realize the image once simultaneously obtaining different wave length, and effectively avoid cross-talk problem, and the Aberration Problem that light transmission light-transmissive substrate causes.
For solving the problem, the utility model adopts following technical scheme: a kind of six wavelength narrow band micro light-filters, comprise light-transmissive substrate, a surface of described light-transmissive substrate is that periodic arrangement is coated with some Microfiltration Unit by certain arrangement mode, and described Microfiltration Unit has six pixels being coated with arrowband film system respectively and being formed.
As preferably, the geometric configuration of described pixel and measure-alike.
As preferably, between described pixel, be coated with chromium rete.
The beneficial effects of the utility model are: because on light-transmissive substrate, rule is coated with Microfiltration Unit, each Microfiltration Unit is coated with six pixels, the image of six different wave lengths can be obtained simultaneously, because being coated with chromium rete between each pixel, avoid the cross-talk problem between the printing opacity in gap between different pixels and pixel, again because Microfiltration Unit is coated on the same side of light-transmissive substrate, avoid the aberration that light transmission light-transmissive substrate causes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of Microfiltration Unit in the utility model;
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, the utility model provides a kind of six wavelength narrow band micro light-filters, comprise light-transmissive substrate 1, a surface of light-transmissive substrate 1 is that periodic arrangement is coated with some Microfiltration Unit 2 by certain arrangement mode, and Microfiltration Unit 2 has six pixels 31,32,33,34,35,36 being coated with arrowband film system and being formed respectively.
Light-transmissive substrate 1 by diameter be 15mm, the circular JGS2 quartz glass of thick 0.5mm makes.
Be coated with some Microfiltration Unit 2 on a surface of light-transmissive substrate 1, Microfiltration Unit 2 is periodic arrangement along X-axis or Y direction by certain arrangement mode, Microfiltration Unit 2 for diameter be the circle of 1.03mm.
As shown in Figure 2, six pixels 31,32,33,34,35 and 36 are comprised in each Microfiltration Unit 2, using chromium rete 4 as interval between each pixel.
Pixel 31,32,33,34,35,36 is coated with the arrowband film system of different central permeate wavelength respectively, and geometric configuration and size are all the same, and preferably circular, diameter range about tens microns, each pixel only allows the light transmission of corresponding wave band.
Chromium rete 4 adopts ion to assist, and the physical gas phase deposition technology of electron gun evaporation is coated with, and the thickness be coated with is monitored by brilliant control wafer, and thickness is 2.5 μm.
The pixel 31,32,33,34,35,36 being coated with arrowband film system is all by F-P Fabry
-the filter coating that Perot interference technique builds.
The filter coating centre wavelength of F-P Fabry-Perot interference technique construction is adopted to be respectively 520,560,585,625,670 and 710, transmitance T > 75%.
520 pixels 31 except main peak, the transmitance < 0.01% of wavelength location 450-720nm.
560 pixels 32 except main peak, the transmitance < 0.01% of wavelength location 480-730nm.
585 pixels 33 are except main peak.The transmitance < 0.01% of wavelength location 470-720nm.
625 pixels 34 except main peak, the transmitance < 0.01% of wavelength location 480-740nm.
670 pixels 35 except main peak, the transmitance < 0.01% of wavelength location 490-770nm.
710 pixels 36 except main peak, the transmitance < 0.01% of wavelength location 490-820nm.
Because being coated with the chromium rete 4 with one fixed width between each pixel, avoid the cross-talk problem between the printing opacity in gap between different pixels and pixel.
The Microfiltration Unit 2 be made up of pixel 31,32,33,34,35,36 is coated on the same side of light-transmissive substrate 1, avoids the aberration that light transmission light-transmissive substrate causes.
Coordinate external lens in use, the spectral characteristic of external lens meets: 200-500nm and 720-1200nm transmitance < 0.01%, 515-715nm transmitance > 90%, filters out the parasitic light outside main peak.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. a wavelength narrow band micro light-filter, it is characterized in that: comprise light-transmissive substrate, a surface of described light-transmissive substrate is that periodic arrangement is coated with some Microfiltration Unit by certain arrangement mode, and described Microfiltration Unit has six pixels being coated with arrowband film system respectively and being formed.
2. a kind of six wavelength narrow band micro light-filters according to claim 1, is characterized in that: the geometric configuration of described pixel and measure-alike.
3. a kind of six wavelength narrow band micro light-filters according to claim 1, is characterized in that: be coated with chromium rete between described pixel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194278.7U CN204479784U (en) | 2015-04-02 | 2015-04-02 | A kind of six wavelength narrow band micro light-filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194278.7U CN204479784U (en) | 2015-04-02 | 2015-04-02 | A kind of six wavelength narrow band micro light-filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204479784U true CN204479784U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194278.7U Expired - Fee Related CN204479784U (en) | 2015-04-02 | 2015-04-02 | A kind of six wavelength narrow band micro light-filters |
Country Status (1)
| Country | Link |
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| CN (1) | CN204479784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429095A (en) * | 2019-08-26 | 2019-11-08 | 中国电子科技集团公司第四十四研究所 | A kind of gazing type multispectral imaging device and preparation method thereof |
-
2015
- 2015-04-02 CN CN201520194278.7U patent/CN204479784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429095A (en) * | 2019-08-26 | 2019-11-08 | 中国电子科技集团公司第四十四研究所 | A kind of gazing type multispectral imaging device and preparation method thereof |
| CN110429095B (en) * | 2019-08-26 | 2021-09-28 | 中国电子科技集团公司第四十四研究所 | Staring multispectral imaging device |
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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: 20150715 Termination date: 20190402 |