CN203037572U - Optical system of spectrophotometer - Google Patents
Optical system of spectrophotometer Download PDFInfo
- Publication number
- CN203037572U CN203037572U CN 201320026602 CN201320026602U CN203037572U CN 203037572 U CN203037572 U CN 203037572U CN 201320026602 CN201320026602 CN 201320026602 CN 201320026602 U CN201320026602 U CN 201320026602U CN 203037572 U CN203037572 U CN 203037572U
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- catoptron
- mirror
- light path
- light
- slit
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Abstract
The utility model discloses an optical system of a spectrophotometer. The optical system comprises a deuterium lamp (1), a first reflector (2), an inlet slit (3), a second reflector (4), a collimation mirror (5), a grating (6), an outlet slit (7), an incidence lens (8), a sample pool to be measured (9), an emergence lens (10) and a receiving phototube (11) and is characterized in that a switching mirror (12) is arranged on an optical path between the deuterium lamp (1) and the first reflector (2) and can rotate around a central shaft; and a tungsten lamp (13) is opposite to the switching mirror (12). By the optical system, the energy utilization efficiency is improved; the problem of insufficient energy at a receiving end is solved; the number of lenses and the number of reflectors of an apparatus are reduced; an optical path structure is optimized; the production and manufacturing cost is saved; and the production efficiency is greatly improved.
Description
Technical field
The utility model relates to the spectral instrument technical field that material composition is analyzed, specifically be exactly a kind of by to analyzed sample and standard specimen light intensity to the spectrophotometric optical system of amalyzing substances composition recently.
Background technology
Known, visible spectrophotometer can be at black light---and visible spectrum is made qualitative and quantitative analysis to sample material in the zone, is one of physical and chemical experiment chamber spectrometric instrument commonly used, adopts advanced blazed grating monochromator, has the wavelength accuracy height, advantages such as monochromaticity is good, and parasitic light is low adopt microcomputer measurement system, T-A conversion accuracy height, and automatic adjustment 0% is arranged and adjust 100%, concentration factor is set, concentration readout, and can select the serial data printer to carry out the data printing function.Be widely used in medical and health, clinical examination, biological chemistry, petrochemical complex, environmental protection, departments such as quality control.
Spectrophotometric basic functional principle is that the material in the solution excites down in the irradiation of light, has produced the absorption effect to light, and material is to have optionally to the absorption of light.Various material all has its absorption spectrum separately, therefore when certain monochromatic light passes through solution, its energy will be absorbed and weaken, the degree that luminous energy weakens and the concentration of material have certain proportionate relationship, spectrophotometer utilize this principle come to analyzed sample and standard specimen light intensity to amalyzing substances composition recently.
Traditional spectrophotometer light channel structure is comparatively complicated, catoptron and the lens numbers used are more, cause the receiving end energy to weaken greatly, equipment anti-interference ability greatly reduces, resolution descends, be difficult to take into account instrument simultaneously in the energy equilibrium of visible light and ultraviolet region, in the handoff procedure of deuterium lamp and tungsten lamp, cause the instrument job insecurity easily, failure rate rises. in addition, conventional light path can cause some specific band filter effect not good in switching the optical filter process, causes measurement result inaccurate.
The utility model content
Technical barrier to be solved in the utility model is at existing spectrophotometer, structure is too complicated, and the defective of receiving end energy attenuation provides a kind of spectrophotometric meter optical system, adopt two kinds of different light sources as emissive source, can strengthen the energy of receiving end.
Technical scheme
In order to solve above-mentioned technical purpose, the utility model designs a kind of spectrophotometric meter optical system, it comprises deuterium lamp, first catoptron is housed on the emitting light path of described deuterium lamp, be equipped with into slit on the reflected light path of first catoptron, light is mapped to second catoptron from going into after slit penetrates, on the emitting light path of second catoptron collimating mirror is installed, light injects grating after collimating mirror penetrates, penetrate back collimating mirror through behind the optical grating reflection, penetrate from collimating mirror then and enter out slit, light enters the incident lens from going out after slit penetrates, the testing sample pond is installed on the emitting light path of incident lens, and light is injected exit lens after penetrating from the testing sample pond, is equipped with on the emitting light path of exit lens and accepts phototube, it is characterized in that: on the light path between described deuterium lamp and first catoptron switching mirror is installed, switching mirror can be around self central shaft rotation, and tungsten lamp is equipped with in the position of switching the mirror correspondence, and the light that the switching mirror can penetrate tungsten lamp reflexes to first catoptron along the emitting light path of deuterium lamp.
Further, described first catoptron is bigger than second catoptron.
Beneficial effect
The beneficial effects of the utility model are to have improved energy utilization efficiency, effectively avoided the problem of receiving end energy shortage, having taken into account the energy equilibrium problem of instrument in visible light and ultraviolet region well. this system has reduced lens and the number of mirrors of using in the instrument, optimized light channel structure, material and the manufacturing cost of instrument have been saved greatly, owing to use the minimizing of optical lens and catoptron number of parts, the structure of instrument is simplified, reduced the instrument volume, weight is also alleviated. in the production run of instrument, debug time shortens, and production efficiency increases substantially.
Description of drawings
Accompanying drawing 1 is light channel structure synoptic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment
As shown in Figure 1, a kind of spectrophotometric meter optical system, it comprises deuterium lamp 1, first catoptron 2 is housed on the emitting light path of described deuterium lamp 1, be equipped with on the reflected light path of first catoptron 2 into slit 3, light is mapped to second catoptron 4 from going into after slit 3 penetrates, collimating mirror 5 is installed on the emitting light path of second catoptron 4, light injects grating 6 after collimating mirror 5 penetrates, through penetrating back collimating mirror 5 after grating 6 reflections, penetrate from collimating mirror 5 then and enter out slit 7, light enters incident lens 8 from going out after slit 7 penetrates, testing sample pond 9 is installed on the emitting light path of incident lens 8, light is injected exit lens 10 after penetrating from testing sample pond 9, be equipped with on the emitting light path of exit lens 10 and accept phototube 11, it is characterized in that: be equipped with on the light path between described deuterium lamp 1 and first catoptron 2 and switch mirror 12, switching mirror 12 can be around self central shaft rotation, tungsten lamp 13 is equipped with in the position of switching mirror 12 correspondences, and the light that switching mirror 12 can penetrate tungsten lamp 13 reflexes to first catoptron 2 along the emitting light path of deuterium lamp 1.
Further, described first catoptron, 2 to the second catoptrons 4 are big.
In the ultraviolet light zone, the ultraviolet light that deuterium lamp 1 sends images in into slit 3 after first catoptron 2 focuses on, and in the visible region, the visible light that tungsten lamp 13 sends is projected to first catoptron, 2 focal imagings in going into slit 3 after switching mirror 12 reflections, light is gone into slit and is projeced into collimating mirror 5 after by the reflection of second catoptron 4, after collimating, reflex to collimating mirror 5 again by grating 6 again and image in out slit 7, the light that goes out behind the slit images in testing sample pond 9 through incident lens 8, in accepting phototube 11, computing draws testing sample concentration to light after the process absorption of sample after opto-electronic conversion by exit lens 10 focal imagings.
Claims (2)
1. spectrophotometric meter optical system, it comprises deuterium lamp (1), first catoptron (2) is housed on the emitting light path of described deuterium lamp (1), be equipped with on the reflected light path of first catoptron (2) into slit (3), light is mapped to second catoptron (4) from going into after slit (3) penetrates, collimating mirror (5) is installed on the emitting light path of second catoptron (4), light injects grating (6) after collimating mirror (5) penetrates, through penetrating back collimating mirror (5) after grating (6) reflection, penetrate from collimating mirror (5) then and enter out slit (7), light enters incident lens (8) from going out after slit (7) penetrates, testing sample pond (9) is installed on the emitting light path of incident lens (8), light is injected exit lens (10) after penetrating from testing sample pond (9), be equipped with on the emitting light path of exit lens (10) and accept phototube (11), it is characterized in that: be equipped with on the light path between described deuterium lamp (1) and first catoptron (2) and switch mirror (12), switching mirror (12) can be around self central shaft rotation, switch the corresponding position of mirror (12) tungsten lamp (13) is housed, the light that switching mirror (12) can penetrate tungsten lamp (13) reflexes to first catoptron (2) along the emitting light path of deuterium lamp (1).
2. a kind of spectrophotometric meter optical system as claimed in claim 1, it is characterized in that: described first catoptron (2) is bigger than second catoptron (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026602 CN203037572U (en) | 2013-01-18 | 2013-01-18 | Optical system of spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026602 CN203037572U (en) | 2013-01-18 | 2013-01-18 | Optical system of spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037572U true CN203037572U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320026602 Expired - Lifetime CN203037572U (en) | 2013-01-18 | 2013-01-18 | Optical system of spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037572U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954286A (en) * | 2016-05-26 | 2016-09-21 | 上海新产业光电技术有限公司 | Visibility measuring instrument based on rotary-light-filter monochromator |
| CN107870037A (en) * | 2016-09-23 | 2018-04-03 | 大塚电子株式会社 | spectroscopic measurement device |
| CN109709040A (en) * | 2018-12-27 | 2019-05-03 | 天津昌和生物医药技术有限公司 | Miniature biochemical analysis instrument is used in a kind of detection of papery miniflow test card |
| CN116202979A (en) * | 2023-03-24 | 2023-06-02 | 郑州航空工业管理学院 | Water quality on-line analysis device based on ultraviolet spectroscopy |
| CN117330534A (en) * | 2023-11-30 | 2024-01-02 | 山东霍尔德电子科技有限公司 | High-precision infrared spectroscopic oil meter |
-
2013
- 2013-01-18 CN CN 201320026602 patent/CN203037572U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954286A (en) * | 2016-05-26 | 2016-09-21 | 上海新产业光电技术有限公司 | Visibility measuring instrument based on rotary-light-filter monochromator |
| CN107870037A (en) * | 2016-09-23 | 2018-04-03 | 大塚电子株式会社 | spectroscopic measurement device |
| CN109709040A (en) * | 2018-12-27 | 2019-05-03 | 天津昌和生物医药技术有限公司 | Miniature biochemical analysis instrument is used in a kind of detection of papery miniflow test card |
| CN116202979A (en) * | 2023-03-24 | 2023-06-02 | 郑州航空工业管理学院 | Water quality on-line analysis device based on ultraviolet spectroscopy |
| CN117330534A (en) * | 2023-11-30 | 2024-01-02 | 山东霍尔德电子科技有限公司 | High-precision infrared spectroscopic oil meter |
| CN117330534B (en) * | 2023-11-30 | 2024-03-08 | 山东霍尔德电子科技有限公司 | High-precision infrared spectroscopic oil meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |