CN106644945A - Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution - Google Patents
Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution Download PDFInfo
- Publication number
- CN106644945A CN106644945A CN201610935599.7A CN201610935599A CN106644945A CN 106644945 A CN106644945 A CN 106644945A CN 201610935599 A CN201610935599 A CN 201610935599A CN 106644945 A CN106644945 A CN 106644945A
- Authority
- CN
- China
- Prior art keywords
- plano
- convex spherical
- absorption cell
- reflective coating
- convex
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Measuring Cells (AREA)
Abstract
The invention discloses a plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution. The plano-convex mirror multi-pass absorption cell comprises a multi-pass absorption cell body (5) and spherical mirrors coated with reflecting films, the multi-pass absorption cell body (5) is provided with a gas inlet (10) and a gas outlet (6), the spherical mirrors are placed at two ends of the multi-pass absorption cell body (5) and include a first plano-convex spherical mirror (4) and a second plano-convex spherical mirror (7), the convex spherical surface of the first plano-convex spherical mirror (4) is back to that of the second plano-convex spherical mirror (7), planes of the first plano-convex spherical mirror (4) and the second plano-convex spherical mirror (7) are hermetically connected with two ends of the multi-pass absorption cell body (5) respectively, the convex spherical surfaces are coated with the reflecting films (8), an incident light hole (3) without coated reflecting films is formed in the reflecting film (8) at the edge of the first plano-convex spherical mirror (4), and an emergent light hole (9) without coated reflecting films is formed in the reflecting film (8) at the edge of the second plano-convex spherical mirror (7). The plano-convex mirror multi-pass absorption cell can be widely applied to detection of polluted or corrosive gas.
Description
Technical field
The present invention relates to logical absorption cell more than a kind of optics, especially a kind of planoconvex lens for preventing eyeglass film layer from corroding and polluting
More logical absorption cell.
Background technology
Lead to absorption cell optics as a kind of optical instrument more, be widely used in laser absorption spectroscopy, it
Longer light path can be realized in relatively small volume, and then improves the sensitivity for detecting, reduce the limit of detection.Mesh
Before, logical absorption cell is as disclosed in the A1 of Europatent application EP 2375237 were in 12 days October in 2011 more than conventional optics
Leading to absorption cell and method a kind of Herriot of employing spherical reflector more.The how logical suction referred in the application for a patent for invention file
Receives pond is by the how logical absorption pond body with inlet, outlet, and constitutes positioned at many logical plano-concave spherical mirrors for absorbing pond body two ends, its
In, the concave surface of two plano-concave spherical mirrors is oppositely arranged, and reflective coating is coated with the concave surface of mirror, and the edge of plano-concave spherical mirror is provided with
Printing opacity through hole；During detection, by the spacing for adjusting two plano-concave spherical mirrors, different order of reflection are capable of achieving, obtain difference
Absorption light path.Though this many logical absorption cells can increase absorption light path, but also there is weak point：When being applied to pollution
Or corrosive gas detection when, these gases can produce pollution to the film layer of eyeglass or corrode；Contaminated or corrosion eyeglass
Film layer can make the light paths in many logical absorption cells shift, and cause the increasing of veiling glare in many logical absorption cells, interference signal
Increase, so as to affect the signal to noise ratio of detectable signal.
The content of the invention
The technical problem to be solved in the present invention is to overcome weak point of the prior art, there is provided a kind of rational in infrastructure, real
Leading to absorption cell the planoconvex lens for preventing the corrosion of eyeglass film layer and pollution more.
For solve the present invention technical problem, the technical scheme for being adopted for：Prevent eyeglass film layer from corroding and pollute it is flat
Lead to absorption cell convex lens includes the how logical absorption pond body with air inlet and gas outlet more, and is placed in many logical absorption pond body two ends
The spherical reflector of reflective coating is coated with, particularly,
The first plano-convex spherical speculum and the reflection of the second plano-convex spherical that the spherical reflector is disposed opposite to each other for convex spherical
Mirror；
The plane of the first plano-convex spherical speculum and the second plano-convex spherical speculum absorbs pond bodies more with leading to respectively
Two ends are tightly connected, convex spherical is coated with reflective coating；
The reflective coating of the first plano-convex spherical mirror edge is equipped with the entrance pupil for not plating reflective coating, and second is flat
The reflective coating of convex spherical mirror edge is equipped with the exit pupil for not plating reflective coating.
As prevent eyeglass film layer corrode and pollute planoconvex lens more lead to absorption cell further improvement：
Preferably, exit pupil is located on the emitting light path of entrance pupil diagonal plane.
Preferably, entrance pupil is located in the light path of the light beam of collimated light source output；It is easy to the calibration of light path.
It is relative to the beneficial effect of prior art：
After using such structure, the pollution to be detected or corrosive gas not with the film layer directly contact of eyeglass, both
The pollution or corrosion of pollution or corrosive gas to eyeglass film layer is prevented, it is to avoid pollution or corrosive gas are to detectable signal
Impact, improve the accuracy of detection, and correspondingly improve the service lifes of many logical absorption cells, also greatly improved many
The practicality of logical absorption cell so as to can be widely used in the detection to various gases, is particularly well suited to pollution or corrosivity
The detection of gas.
Description of the drawings
Fig. 1 is a kind of basic structure schematic diagram of the present invention.
Fig. 2 is the hot spot distribution schematic diagram in eyeglass film layer of the present invention.
Fig. 3 is the hot spot distribution schematic diagram of the collimated light source of the present invention and practical application infrared light supply.
Specific embodiment
The preferred embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, the composition that absorption cell is led to the planoconvex lens for preventing the corrosion of eyeglass film layer and pollution as follows more：
Many logical sides for absorbing the two ends of pond body 5 have air inlet 10 and gas outlet 6.Convex spherical be disposed opposite to each other first
The plane of the plano-convex spherical speculum 7 of plano-convex spherical speculum 4 and second is tightly connected respectively with many logical two ends for absorbing pond body 5；
Wherein, the convex spherical of the first plano-convex spherical speculum 4 and the second plano-convex spherical speculum 7 is coated with reflective coating 8, the first plano-convex ball
The reflective coating 8 at the edge of face speculum 4 is equipped with the entrance pupil 3 for not plating reflective coating, the edge of the second plano-convex spherical speculum 7
Reflective coating 8 is equipped with the exit pupil 9 for not plating reflective coating.Exit pupil 9 is located at the emitting light path of the diagonal plane of entrance pupil 3
On.Entrance pupil 3 is located in the light path of the light beam 2 of the output of collimated light source 1.
When using, the light beam 2 for first being exported using collimated light source 1 according to required light path calibrating light path, obtain as or it is approximate
In the hot spot distribution map shown in Fig. 2, then under test gas are passed through by air inlet 10 and gas outlet 6.Afterwards, using coaxial with light beam 2
The laser beam directive of respective absorption wave band do not plate the entrance pupil 3 of reflective coating, the plano-convex spherical of laser beam transparent first is anti-
Penetrate mirror 4 to enter in many logical absorption pond bodies 5, and after under test gas, transmit the second plano-convex spherical speculum 7 and reflected film layer
8 reflect, and this laser beam is absorbed in pond bodies 5 after repeatedly transmission and reflecting in many logical, formed in minute surface film layer as or
The circular light spot distribution being similar to shown in Fig. 3, finally, the laser beam with test gas information never plates the outgoing of reflective coating
Unthreaded hole 9 is projected, so as to be effectively increased suction in the case where pollution or corrosive gas and eyeglass film layer directly contact is avoided
The light path of receipts.
Obviously, those skilled in the art can lead to more to the planoconvex lens for preventing eyeglass film layer from corroding and polluting of the present invention
Absorption cell carries out various changes with modification without departing from the spirit and scope of the present invention.So, if repairing to the present invention these
Change and belong within the scope of the claims in the present invention and its equivalent technologies with modification, then the present invention be also intended to comprising these change and
Including modification.
Claims (3)
1. lead to absorption cell a kind of planoconvex lens for preventing eyeglass film layer from corroding and polluting, including with air inlet (10) and gas outlet more
(6) how logical absorption pond body (5), and it is placed in many logical spheric reflections for being coated with reflective coating (8) for absorbing pond body (5) two ends
Mirror, it is characterised in that：
The first plano-convex spherical speculum (4) and the second plano-convex spherical speculum that the spherical reflector is disposed opposite to each other for convex spherical
(7)；
The plane of the first plano-convex spherical speculum (4) and the second plano-convex spherical speculum (7) leads to absorption pond bodies more with respectively
(5) two ends are tightly connected, convex spherical is coated with reflective coating (8)；
The reflective coating (8) at the first plano-convex spherical speculum (4) edge is equipped with the entrance pupil (3) for not plating reflective coating,
The reflective coating (8) at the second plano-convex spherical speculum (7) edge is equipped with the exit pupil (9) for not plating reflective coating.
2. leading to absorption cell the planoconvex lens for preventing eyeglass film layer from corroding and polluting according to claim 1 more, it is characterized in that
Unthreaded hole (9) is penetrated on the emitting light path of entrance pupil (3) diagonal plane.
3. it is according to claim 1 prevent eyeglass film layer corrode and pollute planoconvex lens more lead to absorption cell, it is characterized in that into
Penetrate in the light path of the light beam (2) that unthreaded hole (3) is exported positioned at collimated light source (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935599.7A CN106644945A (en) | 2016-11-01 | 2016-11-01 | Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935599.7A CN106644945A (en) | 2016-11-01 | 2016-11-01 | Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106644945A true CN106644945A (en) | 2017-05-10 |
Family
ID=58821944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610935599.7A Pending CN106644945A (en) | 2016-11-01 | 2016-11-01 | Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644945A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520931A (en) * | 2018-12-29 | 2019-03-26 | 青岛海纳光电环保有限公司 | Gas absorption chamber |
| CN110763657A (en) * | 2019-11-20 | 2020-02-07 | 江苏赛诺格兰医疗科技有限公司 | Photoelectric digital conversion system for reflective material reflectivity test system |
| CN112179863A (en) * | 2020-09-01 | 2021-01-05 | 长江存储科技有限责任公司 | Transmission sampling device and method |
| CN112882145A (en) * | 2021-02-22 | 2021-06-01 | 长春长光辰英生物科学仪器有限公司 | Reflective light filtering module and light filtering method thereof |
| CN113523548A (en) * | 2021-07-26 | 2021-10-22 | 天津荣盛盟固利新能源科技有限公司 | Method for detecting dirt degree of laser welding protective lens |
| GB2628719A (en) * | 2023-03-31 | 2024-10-02 | Servomex Group Ltd | Method, apparatus and system for compact optical gas absorption measurements |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281125A (en) * | 2008-05-19 | 2008-10-08 | 安徽敏测光电科技有限公司 | Method and apparatus for monitoring intelligent infrared multi-component harmful gas |
| CN103837912A (en) * | 2014-03-26 | 2014-06-04 | 四川大学 | Lens and reflecting mirror used untraditionally |
| CN105445196A (en) * | 2014-12-17 | 2016-03-30 | 邓文平 | Sample measuring cell |
-
2016
- 2016-11-01 CN CN201610935599.7A patent/CN106644945A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281125A (en) * | 2008-05-19 | 2008-10-08 | 安徽敏测光电科技有限公司 | Method and apparatus for monitoring intelligent infrared multi-component harmful gas |
| CN103837912A (en) * | 2014-03-26 | 2014-06-04 | 四川大学 | Lens and reflecting mirror used untraditionally |
| CN105445196A (en) * | 2014-12-17 | 2016-03-30 | 邓文平 | Sample measuring cell |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520931A (en) * | 2018-12-29 | 2019-03-26 | 青岛海纳光电环保有限公司 | Gas absorption chamber |
| CN110763657A (en) * | 2019-11-20 | 2020-02-07 | 江苏赛诺格兰医疗科技有限公司 | Photoelectric digital conversion system for reflective material reflectivity test system |
| CN112179863A (en) * | 2020-09-01 | 2021-01-05 | 长江存储科技有限责任公司 | Transmission sampling device and method |
| CN112179863B (en) * | 2020-09-01 | 2021-10-19 | 长江存储科技有限责任公司 | Transmission sampling device and method |
| CN112882145A (en) * | 2021-02-22 | 2021-06-01 | 长春长光辰英生物科学仪器有限公司 | Reflective light filtering module and light filtering method thereof |
| CN113523548A (en) * | 2021-07-26 | 2021-10-22 | 天津荣盛盟固利新能源科技有限公司 | Method for detecting dirt degree of laser welding protective lens |
| GB2628719A (en) * | 2023-03-31 | 2024-10-02 | Servomex Group Ltd | Method, apparatus and system for compact optical gas absorption measurements |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106644945A (en) | Plano-convex mirror multi-pass absorption cell for preventing lens film corrosion and pollution | |
| JP4570680B1 (en) | Light irradiation device and inspection device | |
| CN101477044B (en) | Surface plasma resonance sensor | |
| CN102221525B (en) | optical system for sample detection and sample analysis device | |
| CN105445196A (en) | Sample measuring cell | |
| CN111077046B (en) | Schlieren porous spray test system suitable for ultrahigh back pressure | |
| CN107884353A (en) | A kind of gas absorption cell light channel structure suitable for fume continuous monitoring system | |
| CN104155241A (en) | Long-path optical absorption cell adjustable in optical path | |
| CN106018274A (en) | Device for absorbing transmission light during turbidity measurement | |
| CN204314209U (en) | sample measuring cell | |
| KR102293020B1 (en) | Exhaust gas real-time measurement device of a moving vehicle equipped with a soot correction means | |
| CN211697465U (en) | Optical absorption cell and photoelectric gas analyzer | |
| CN110687054A (en) | Large-light-spot beam combining method for remote measurement of motor vehicle exhaust | |
| CN110542541A (en) | Method and device for measuring reflectivity of lens | |
| CN208239291U (en) | Ultraviolet long light path multiple reflecting pool optical-mechanical system | |
| CN204314210U (en) | sample measuring cell | |
| CN207571018U (en) | A kind of gas absorption cell light channel structure suitable for fume continuous monitoring system | |
| CN115046962A (en) | Laser gas sensor design method and system for inhibiting water vapor condensation influence | |
| CN110596007B (en) | Multi-element plane mirror optical multi-pass absorption pool | |
| CN109283136B (en) | Optical cavity with wide range | |
| CN114674752A (en) | Multiply gas absorption white pond | |
| CN110596005A (en) | Novel annular flat concave mirror optical multi-pass absorption pool | |
| US6452676B1 (en) | Method for measuring a scattered light and method of urinalysis using the same | |
| CN104237137A (en) | Device for measuring glass color, brightness and reflectivity spectrum at different angles | |
| CN110596006B (en) | Folding type optical multi-pass absorption cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |