CN206945134U - A kind of hand holding type miniature spectrometer - Google Patents
A kind of hand holding type miniature spectrometer Download PDFInfo
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- CN206945134U CN206945134U CN201720773516.9U CN201720773516U CN206945134U CN 206945134 U CN206945134 U CN 206945134U CN 201720773516 U CN201720773516 U CN 201720773516U CN 206945134 U CN206945134 U CN 206945134U
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Abstract
The utility model discloses a kind of hand holding type miniature spectrometer, including optical system, signal processing module, display screen, power supply and shell, the optical system includes light cone, speculum, slit, collimating mirror, grating, focusing mirror and photodetector, and the optical element is set gradually along light path incident direction；The input connection of the photodetector and signal processing module, the output end of signal processing module are connected with display screen, and power supply is that signal processing module and display screen are powered.Hand holding type miniature spectrometer provided by the utility model, increase light cone and speculum before slit, large area incident light source is gathered in small area, increases local light intensity, faint light can be detected；The optical element and detector that the utility model is related to all select microdevice, and form staggered form light channel structure, reduce the space that optical system takes, are advantageous to the miniaturized design of spectral instrument, spectrometer is easy to carry, use is also more convenient.
Description
Technical field
A kind of hand holding type miniature spectrometer is the utility model is related to, belongs to spectrum test technical field.
Background technology
Spectrometer detects in article which kind of element contained, this technology is extensive by the crawl and analysis to optical information
In being detected applied to air pollution, water pollution, food hygiene, metal industry etc..In existing equipment, traditional spectrometer volume compared with
Greatly, use condition is harsh, involves great expense, and can only be limited in laboratory and use, be unsuitable for carrying with detection.In addition, at present
The optical element of conventional spectrometer mainly has slit, collimating mirror, grating, focusing mirror and optical detector, uses
When the direct face slit of measured light it is incident, energy of light source utilization rate is low.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the utility model provides a kind of hand holding type miniature spectrometer.
Technical scheme：In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of hand holding type miniature spectrometer, including optical system, signal processing module, display screen, power supply and shell, it is described
Optical system includes light cone, speculum, slit, collimating mirror, grating, focusing mirror, photodetector；It is incident along light path
Direction sets gradually light cone, speculum, slit, collimating mirror, grating, focusing mirror and photodetector；The photoelectricity
Detector is placed on focusing mirror focal plane；The input of the photodetector and signal processing module connects, at signal
The output end of reason module is connected with display screen；The power supply connection signal processing module and display screen；The display screen is arranged on
The outer surface of shell.
Further, the composition material of the light cone is fiber optic materials, is shaped as taper, is simultaneously wide face, simultaneously to be narrow
Face.
Further, the side coating black coating of the light cone.
Further, the power supply is chargeable lithium cell.
Further, power switch, power switch and power electric connection are additionally provided with the shell.
Further, the shell is provided with an optical transmission window, and the plane of light incidence of light cone is set against optical transmission window.
Beneficial effect：A kind of hand holding type miniature spectrometer provided by the utility model, increase light cone and anti-before slit
Mirror is penetrated, light cone is the tapered optical element narrow when width, and large area incident light source can be gathered in small area, and increase is local
Light intensity, the utilization rate of light source is at utmost lifted, faint light can be detected；The optical element that the utility model is related to and
Detector all selects microdevice, and forms staggered form light channel structure, reduces the space that optical system takes, is advantageous to spectrometer
The miniaturized design of device, makes spectrometer be easy to carry, and use is also more convenient.
Brief description of the drawings
Fig. 1 is the light path schematic diagram that incident light passes through light cone, speculum and slit；
Fig. 2 is light path schematic diagram of the incident light after slit；
Fig. 3 is internal structure schematic diagram of the present utility model；
Fig. 4 is shell top view of the present utility model.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Refering to Fig. 1 to Fig. 4, a kind of hand holding type miniature spectrometer, including optical system, signal processing module, display screen, electricity
Source and shell, the optical system include light cone 1, speculum 2, slit 3, collimating mirror 4, grating 5, the and of focusing mirror 6
Photodetector 7, light cone 1, speculum 2, slit 3, collimating mirror 4, grating 5, focusing are set gradually along light path incident direction
Speculum 6 and photodetector 7, using staggered form Cheney-Tener（Czerny-Turner）Light channel structure, as shown in Figure 2.
The light cone 1 is tapered optical element wide at the top and narrow at the bottom, is merged by thousands of fiber optic materials
Formed.Two end faces of light cone, can all be processed into circular end face, be either all processed into square end surface or one side is processed
Into circular end face, square end surface is simultaneously processed into.In order that incident light all directive speculum as far as possible, prevents light cone light leak, can
Black coating is coated outside light cone.An optical transmission window 12, light cone 1 are additionally provided with the shell 13 of the hand holding type miniature spectrometer
Plane of light incidence set against optical transmission window 12.
Incident light is through the wide end surface of the directive light cone 1 of optical transmission window 12 of shell, the directive speculum after the aggregation of light cone 1
2, the light directive slit 3 reflected through speculum 2, collimating mirror 4, collimated reflection 4 are incident to along vertical slits face direction
Light directive grating 5 after reflection, is incident to focusing mirror 6, finally the light after light splitting and reflection enters after being divided
The photosurface of photodetector 7 is incident upon, photodetector 7 is placed on focusing mirror focal plane, and size is more than or equal to imaging
Spot size.The optical signal collected is converted to electric signal by photodetector 7, can specifically use CCD（Charge coupled cell）
Array photodetectors or CMOS（Complementary metal oxide semiconductor）Array photodetectors.
Photodetector 7 is connected with the input of signal processing module 8 by circuit line, the signal processing module 8
Data acquisition and issuance circuit including A/D change-over circuits, based on STM32 processors；The output end of signal processing module 8 is with showing
Display screen 10 is connected, and the spectral information that data processing is obtained is presented on a display screen, includes the relative spectral work(of incident light source
The relevant parameters such as rate distribution, chromaticity coordinates, colour temperature, it is easy to tester to check and analyzes test result.Display screen 10 is mounted on
The outer surface of shell 13, display screen are touch-screen；Power supply 9 is electrically connected with signal processing module 8 and display screen 10, the power supply
10 be chargeable lithium cell；Be additionally provided with power switch 11 on the shell 13 of the hand holding type miniature spectrometer, power switch 11 with
Power supply 9 connects, and power supply is switched between power supply state and off-position, and then controls the opening and closing of spectrometer.
Described above is only preferred embodiment of the present utility model, and the circuit line being wherein related in embodiment is not attached
Embodied in figure, but have no effect on those skilled in the art and understand the utility model with reference to description.It should be understood that：For this
For the those of ordinary skill of technical field, on the premise of the utility model principle is not departed from, some improvement can also be made
And retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
- A kind of 1. hand holding type miniature spectrometer, it is characterised in that：Including optical system, signal processing module, display screen, power supply and Shell, the optical system include light cone, speculum, slit, collimating mirror, grating, focusing mirror, photodetector； Light cone, speculum, slit, collimating mirror, grating, focusing mirror and photodetection are set gradually along light path incident direction Device；The photodetector is placed on focusing mirror focal plane；The input of the photodetector and signal processing module Connection, the output end of signal processing module are connected with display screen；The power supply connection signal processing module and display screen；It is described aobvious Display screen is arranged on the outer surface of shell.
- 2. hand holding type miniature spectrometer according to claim 1, it is characterised in that：The composition material of the light cone is optical fiber Material, taper is shaped as, is simultaneously wide face, is simultaneously leptoprosopy.
- 3. hand holding type miniature spectrometer according to claim 1, it is characterised in that：The side coating black of the light cone applies Layer.
- 4. hand holding type miniature spectrometer according to claim 1, it is characterised in that：The power supply is chargeable lithium cell.
- 5. hand holding type miniature spectrometer according to claim 1, it is characterised in that：Power supply is additionally provided with the shell to open Close, power switch and power electric connection.
- 6. hand holding type miniature spectrometer according to claim 1, it is characterised in that：The shell is provided with a light inlet window Mouthful, the plane of light incidence of light cone is set against optical transmission window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773516.9U CN206945134U (en) | 2017-06-29 | 2017-06-29 | A kind of hand holding type miniature spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773516.9U CN206945134U (en) | 2017-06-29 | 2017-06-29 | A kind of hand holding type miniature spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945134U true CN206945134U (en) | 2018-01-30 |
Family
ID=61367642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720773516.9U Active CN206945134U (en) | 2017-06-29 | 2017-06-29 | A kind of hand holding type miniature spectrometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN206945134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870816A (en) * | 2020-08-03 | 2020-11-03 | 南京信息职业技术学院 | Special spectrometer for neonatal jaundice blue-light therapeutic instrument and optical mechanism design method thereof |
| CN113686547A (en) * | 2020-05-19 | 2021-11-23 | 华域视觉科技(上海)有限公司 | Automobile LED (light-emitting diode) automobile lamp chromaticity detection system and detection method |
-
2017
- 2017-06-29 CN CN201720773516.9U patent/CN206945134U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686547A (en) * | 2020-05-19 | 2021-11-23 | 华域视觉科技(上海)有限公司 | Automobile LED (light-emitting diode) automobile lamp chromaticity detection system and detection method |
| CN113686547B (en) * | 2020-05-19 | 2024-07-26 | 华域视觉科技(上海)有限公司 | Automobile LED lamp chromaticity detection system and detection method |
| CN111870816A (en) * | 2020-08-03 | 2020-11-03 | 南京信息职业技术学院 | Special spectrometer for neonatal jaundice blue-light therapeutic instrument and optical mechanism design method thereof |
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