CN108801456A - Mobile Embedded spectrometer - Google Patents
Mobile Embedded spectrometer Download PDFInfo
- Publication number
- CN108801456A CN108801456A CN201810892708.0A CN201810892708A CN108801456A CN 108801456 A CN108801456 A CN 108801456A CN 201810892708 A CN201810892708 A CN 201810892708A CN 108801456 A CN108801456 A CN 108801456A
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- CN
- China
- Prior art keywords
- light
- collimating mirror
- imaging lens
- dispersion grating
- imaging
- Prior art date
- 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.)
- Pending
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- 238000003384 imaging method Methods 0.000 claims abstract description 45
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 239000006185 dispersion Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 13
- 201000009310 astigmatism Diseases 0.000 claims 1
- 230000003595 spectral effect Effects 0.000 abstract description 6
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 8
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
Abstract
The present invention relates to a kind of Mobile Embedded spectrometers, including a kind of Mobile Embedded spectrometer, including entrance slit, collimating mirror, dispersion grating, imaging lens and imaging surface CCD, the entrance slit, collimating mirror, dispersion grating, imaging lens and imaging surface CCD are set to the side of one block of flat optical material, the incident light reaches the collimating mirror being arranged in light path by entrance slit, collimating mirror is emitted directional light to dispersion grating, after dispersion grating, various coloured light exiting parallels are to imaging lens, the light convergence of imaging lens outgoing is imaged on imaging surface CCD, imaging surface CCD is connected with handset processes system, mobile phone is set to obtain spectral matching factor ability.The present invention is coenosarc optical component, and the optical system size of design is small, can be embedded in the mobile phone of current mainstream, does not need assembling and setting optical system, is suitble to large-scale production.
Description
Technical field
The present invention designs optical devices technologies field, and in particular to a kind of Mobile Embedded spectrometer.
Background technology
Spectrometer is a kind of important optical measurement analytical equipment, has high certainty of measurement, and detection range is wide, and speed is fast,
The advantages that amount of samples is few.In metallurgy, geology, petrochemical industry, medical and health, environmental protection, military surveillance, universe exploration, money
Source and hydrology detection etc. are widely applied.With the help of desktop computer, traditional micro spectrometer can be held
Row is quick, intuitively, real-time online qualitative or quantitative analysis, but since its is complicated, not readily portable and expensive
The deficiencies of, it is inconvenient to use outdoors, especially use at the scene.With environmental monitoring, food security and real-time safety check etc.
Field is concerned by people, and portable spectrometer develops rapidly, and highly sensitive high-resolution portable spectrometer is wide
It is general for imparting knowledge to students, scientific research and actual test.Portable spectrometer only only has hand size, particularly square when using at the scene
Just.
Increasingly integrated with cell-phone function, more and more optional equipments be used to be combined with mobile phone, realize
More and more functions.And traditional portable spectrometer includes entrance slit, collimation lens, grating assembly, detector etc.
Optical element needs used corresponding mechanical support to be fixed to each other, and constitutes particular optical spectral matching factor function, and due to structure
With bulky reason, it can't be embedded into mobile phone and use.
Invention content
The present invention will provide a kind of Mobile Embedded spectrometer, of the existing technology due to structure and volume are big to overcome
The problem of mobile phone uses cannot be embedded into.
In order to reach the purpose of the present invention, technical solution provided by the invention is：A kind of Mobile Embedded spectrometer, including
Entrance slit 1, collimating mirror 2, dispersion grating 3, imaging lens 4 and imaging surface CCD 5, the entrance slit 1, collimating mirror 2, dispersed light
Grid 3, imaging lens 4 and imaging surface CCD 5 are set to the side of one block of flat optical material, the optical material of one piece of entirety
Thickness is less than 3mm；The incident light reaches the collimating mirror 2 being arranged in light path, the emergent light of collimating mirror 2 by entrance slit 1
The angle of light path and optical path of incident light is θ 1, and concave mirror 2 is emitted directional light to dispersion grating 3, the emergent light light path of dispersion grating 3
Angle with the emergent light light path of collimating mirror 2 is θ 2, after dispersion grating 3, various coloured light exiting parallels to imaging lens 4, at
As the emitting light path of mirror 4 and the emitting light path angle of dispersion grating 4 are θ 3, the light convergence that imaging lens 4 are emitted is imaged on imaging
On the CCD5 of face.
The range of above-mentioned θ 1 is 5 ° ~ 15 °.
Compared with prior art, it is an advantage of the invention that：
1, the present invention uses the Worker's Stadium optical element, the core optical element for constituting spectrometer primary according to geometric optics logical relation
Layout is around one block of whole optical material.Designed optical system size is less than 8*8*3mm, adapts to current all kinds of shiftings
Moving platform, volume can be embedded in the mobile phone of current mainstream, and mobile phone is made to have the function of spectral matching factor.
2, it is convenient to prepare：Each optical element is arranged on one block of optical material, ensures each point by optical manufacturing
The relative geometrical relation of vertical element, does not need assembling and setting optical system, is suitble to large-scale production.
Description of the drawings
Fig. 1 is structure of the invention system schematic；
Fig. 2 is the optical schematic diagram of the present invention；
Fig. 3 is simulation of optical systems emulation index path；
Fig. 4 is optical system resolved spectroscopy ability.
The reference numerals are as follows：
1- entrance slits, 2- collimating mirrors, 3- dispersion gratings, 4- imaging lens, 5- imaging surfaces CCD.
Specific implementation mode
The present invention is described in detail below in conjunction with attached drawing：
Referring to Fig. 1 and Fig. 2, the present invention is that 1 entrance slit, 2 collimating mirrors, 3 gratings, 4 imagings are processed on one block of optical material
Mirror forms a coenosarc optical component.
A kind of Mobile Embedded spectrometer, including entrance slit 1, collimating mirror 2, dispersion grating 3, imaging lens 4 and imaging surface
CCD 5, the entrance slit 1, collimating mirror 2, dispersion grating 3, imaging lens 4 and imaging surface CCD 5 are set to one piece of flat optical
The thickness of the side of material, the optical material of one piece of entirety is less than 3mm；By entrance slit 1, arrival is set the incident light
The collimating mirror 2 in light path is set, the emergent light light path of collimating mirror 2 and the angle of optical path of incident light are θ 1, and collimating mirror 2 is emitted parallel
Light is to dispersion grating 3, and the angle of the emergent light light path of dispersion grating 3 and the emergent light light path of collimating mirror 2 is θ 2, by dispersed light
After grid 3, various coloured light exiting parallels to imaging lens 4, the emitting light path of imaging lens 4 and the emitting light path angle of dispersion grating 4 are θ
3, the light convergence that imaging lens 4 are emitted is imaged on imaging surface CCD5.
The optical element is processed and is produced on one block of flat optical material, and the flat optical material includes flat
Capable upper and lower surface and side, the optical element for constituting spectrometer are distributed in the surrounding of whole optical material according to function, i.e., its
On side.
The range of the θ 1 is：Ensure that outgoing collimated light beam is not blocked by any other optical surface, value is less than more than 0 °
It 90 °, is typically in the range of between 5 ° to 15 °；
The range of the θ 2 is：Ensure the light beam by dispersion grating 3 between entrance slit 1 and collimating mirror 2, and not by two
Person is blocked.
The range of the θ 3 is：Ensure by imaging lens 4 light beam between dispersion grating 3 and collimating mirror 2, and not by
The two is blocked.
The angle, θ 1, θ 2 and θ 3 meet geometric optical imaging relationship, ensure that each coloured light being incident on slit 1 can be through
It, can be on imaging CCD5 at sharply defined image after crossing collimation, dispersion and imaging optic element.
The light convergence that imaging lens 4 are emitted is imaged on imaging surface CCD5, and overall optical system is embedded in interior of mobile phone, leads to
Imaging surface CCD5 is crossed to connect with handset processes system.
Since the light splitting of dispersion grating 3 acts on, each coloured light is incident on the difference of the angle on imaging lens 4, therefore is being imaged
The imaging point position of the upper each coloured light of CCD5 arranges successively on imaging CCD5, obtains spectral matching factor ability.
For 3 constant of dispersion grating used in the present invention for 950lp/mm, imaging lens 4 are 6mm with 2 focal length of collimating mirror, are made
Spectrometer, referring specifically to Fig. 3, test result shows that spectrometer can be operated in 400nm-1000nm spectral coverages, and resolution ratio reaches
5nm.Overall dimensions are 7.54 × 6.89 × 2.8mm, slit width 0.1mm, and imaging and collimating mirror focal length, which are 6mm, to be detected
400-1000nm spectrum, resolution ratio is better than 5nm, referring to Fig. 4, we be set forth 5 pairs of wavelength intervals 5nm different wave length
Point range figure, from picture, the energy barycenter of hot spot is clearly separated, say through designed spectrometer system have 5nm light
Spectral resolution.
Claims (2)
1. a kind of Mobile Embedded spectrometer, it is characterised in that：
Including entrance slit（1）, collimating mirror（2）, dispersion grating（3）, imaging lens（4）With imaging surface CCD（5）, the incidence is narrow
Seam（1）, collimating mirror（2）, dispersion grating（3）, imaging lens（4）With imaging surface CCD（5）It is set to the side of one block of flat optical material
The thickness in face, the optical material of one piece of entirety is less than 3mm；The incident light passes through entrance slit（1）, reach and be arranged in light
The collimating mirror of road（2）, collimating mirror（2）Emergent light light path and the angle of optical path of incident light be θ 1, concave mirror 2 is emitted directional light
To dispersion grating（3）, dispersion grating（3）Emergent light light path and collimating mirror（2）The angle of emergent light light path be θ 2, by color
Astigmatism grid（3）Afterwards, various coloured light exiting parallels are to imaging lens（4）, imaging lens（4）Emitting light path and dispersion grating（4）Go out
It is θ 3, imaging lens to penetrate light path angle（4）The light convergence of outgoing is imaged on imaging surface CCD（5）On.
2. Mobile Embedded spectrometer according to claim 1, it is characterised in that：
The range of the θ 1 is 5 ° ~ 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892708.0A CN108801456A (en) | 2018-08-07 | 2018-08-07 | Mobile Embedded spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892708.0A CN108801456A (en) | 2018-08-07 | 2018-08-07 | Mobile Embedded spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108801456A true CN108801456A (en) | 2018-11-13 |
Family
ID=64079520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892708.0A Pending CN108801456A (en) | 2018-08-07 | 2018-08-07 | Mobile Embedded spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801456A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070459A1 (en) * | 2007-11-30 | 2009-06-04 | Jingyun Zhang | Miniature spectrometers working with cellular phones and other portable electronic devices |
| CN104062007A (en) * | 2014-06-05 | 2014-09-24 | 深圳先进技术研究院 | Mobile phone spectrograph module and mobile phone spectrograph with mobile phone spectrograph module |
| US20150338307A1 (en) * | 2014-05-22 | 2015-11-26 | Abl Ip Holding Llc | Accessory to configure portable device with camera (e.g. smartphone) as lighting meter |
| CN206235769U (en) * | 2016-10-13 | 2017-06-09 | 福州高意光学有限公司 | A kind of mobile phone spectrometer |
| CN206656952U (en) * | 2016-12-04 | 2017-11-21 | 苏州科技大学 | A kind of portable minisize spectrometer |
-
2018
- 2018-08-07 CN CN201810892708.0A patent/CN108801456A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070459A1 (en) * | 2007-11-30 | 2009-06-04 | Jingyun Zhang | Miniature spectrometers working with cellular phones and other portable electronic devices |
| US20150338307A1 (en) * | 2014-05-22 | 2015-11-26 | Abl Ip Holding Llc | Accessory to configure portable device with camera (e.g. smartphone) as lighting meter |
| CN104062007A (en) * | 2014-06-05 | 2014-09-24 | 深圳先进技术研究院 | Mobile phone spectrograph module and mobile phone spectrograph with mobile phone spectrograph module |
| CN206235769U (en) * | 2016-10-13 | 2017-06-09 | 福州高意光学有限公司 | A kind of mobile phone spectrometer |
| CN206656952U (en) * | 2016-12-04 | 2017-11-21 | 苏州科技大学 | A kind of portable minisize spectrometer |
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Application publication date: 20181113 |