CN202676583U - Light source system of light interference gas detection device - Google Patents
Light source system of light interference gas detection device Download PDFInfo
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- CN202676583U CN202676583U CN 201220254401 CN201220254401U CN202676583U CN 202676583 U CN202676583 U CN 202676583U CN 201220254401 CN201220254401 CN 201220254401 CN 201220254401 U CN201220254401 U CN 201220254401U CN 202676583 U CN202676583 U CN 202676583U
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- gas detection
- source system
- interference gas
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Abstract
The utility model relates to the field of optical technology, in particular to a light source system of a light interference gas detection device, and aims to provide the light source system of the light interference gas detection device. By means of structural improvement, better collimating effect is achieved, false light is effectively eliminated, and a light interference methane detection device achieves more ideal interference imaging stripes, namely measuring accuracy. The light source system of the light interference gas detection device comprises a light source and a collimating light path, wherein the collimating light path is installed on the launching direction of the light source. Furthermore, the collimating light path successively comprises a condenser and a collimating lens along the light launching direction, and the collimating lens is installed outside the focus of the condenser. The light source system of the light interference gas detection device is composed of the two-level lenses, can improve imaging resolution, improves detection accuracy, and is especially suitable for the light interference methane detection device utilizing an area array type image sensor.
Description
Technical field
The utility model relates to optical technical field, relates in particular to the light-source system of light interference gas detection device.
Background technology
Existing interference of light methane checkout equipment all is to adopt Japanese light path and the physical construction of grinding design of the managing fifties, and its principle is refined quick interference, and it is comprised of light source, condenser, level crossing, air chamber, refractive prism, object lens, reflecting prism, negative lens etc.This structure measurement wide ranges, have certain measuring accuracy, maintenance workload little, but because the imaging of optical systems light path is long and the optical-mechanical combined structural member is more, small product size is larger.This structure has veiling glare, thereby easily produces zero point drift and measuring error because light source does not collimate.
The utility model content
In view of this, the utility model purpose by structural improvement, is better collimated effect a kind of light-source system of light interference gas detection device is provided, effectively eliminate veiling glare, making interference of light methane pick-up unit obtain more desirable interference imaging striped is measuring accuracy.
The purpose of this utility model is achieved through the following technical solutions: the light-source system of light interference gas detection device, comprise light source and collimated light path, and described collimated light path is arranged on the transmit direction of light source.
Further, described collimated light path comprises condenser and collimating mirror successively along the light emission direction, and described collimating mirror is arranged at outside the focus of condenser.
Further, described condenser is convex lens, and described collimating mirror also is convex lens.
Further, described collimating mirror is balsaming lens, and described balsaming lens is comprised of convex lens and concavees lens.
Further, the distance of described collimating mirror photocentre and condenser photocentre is the focal length that the focal length of condenser adds collimating mirror.
Further, also be provided with the light hurdle between described condenser and the collimating mirror, described smooth hurdle is arranged in the focus of condenser.
Further, the light-source system of described light interference gas detection device is packaged as a whole.
The light-source system of light interference gas detection device of the present utility model is that the two-stage lens form, and collimate effectively, can improve imaging definition, improves accuracy of detection, especially is fit to the interference of light methane pick-up unit of use planar array type imageing sensor; Compact conformation makes the portable possibility that becomes of instrument.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can from practice of the present utility model, be instructed.Target of the present utility model and other advantages can realize and obtain by following instructions and claims.
Description of drawings
The light channel structure schematic diagram of the light-source system of Fig. 1 the utility model light interference gas detection device.
Embodiment
Below will be described in detail preferred embodiment of the present utility model.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
The light-source system of the light interference gas detection device of the present embodiment, the light-source system of light interference gas detection device comprises light source 1 and collimated light path, described collimated light path is arranged on the transmit direction of light source 1.
Described collimated light path comprises condenser 2, light hurdle 3 and collimating mirror 4 successively along the light emission direction, and described smooth hurdle 3 is arranged in the focus of condenser 2, and described collimating mirror 4 is arranged at outside the focus of condenser 2.
Described condenser 2 is preferably convex lens, described collimating mirror 4 is convex lens not also, be preferably balsaming lens, described balsaming lens is comprised of convex lens and concavees lens, and the distance of collimating mirror 4 photocentres and condenser 2 photocentres is the focal distance f that the focal length l of condenser 2 adds balsaming lens.
Described light source 1 is launched light, disperses after the optical fiber that condenser 2 sends light source 1 is assembled, and in this process, light hurdle 3 can be removed veiling glare, and 4 light to reception of collimating mirror collimate, and the light that examination transmits is horizontal light.
Light source 1 in the light-source system of described light interference gas detection device, condenser 2, light hurdle 3 and collimating mirror 4 can be packaged as a whole.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. the light-source system of light interference gas detection device, it is characterized in that: comprise light source and collimated light path, described collimated light path is arranged on the transmit direction of light source.
2. the light-source system of light interference gas detection device according to claim 1, it is characterized in that: described collimated light path comprises condenser and collimating mirror successively along the light emission direction, and described collimating mirror is arranged at outside the focus of condenser.
3. the light-source system of light interference gas detection device according to claim 2, it is characterized in that: described condenser is convex lens, described collimating mirror also is convex lens.
4. the light-source system of light interference gas detection device according to claim 3, it is characterized in that: described collimating mirror is balsaming lens, described balsaming lens is comprised of convex lens and concavees lens.
5. the light-source system of light interference gas detection device according to claim 2, it is characterized in that: the distance of described collimating mirror photocentre and condenser photocentre is the focal length that the focal length of condenser adds collimating mirror.
6. the light-source system of each described light interference gas detection device according to claim 1-5 is characterized in that: also be provided with the light hurdle between described condenser and the collimating mirror, described smooth hurdle is arranged in the focus of condenser.
7. the light-source system of light interference gas detection device according to claim 6, it is characterized in that: the light-source system of described light interference gas detection device is packaged as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254401 CN202676583U (en) | 2012-05-31 | 2012-05-31 | Light source system of light interference gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254401 CN202676583U (en) | 2012-05-31 | 2012-05-31 | Light source system of light interference gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202676583U true CN202676583U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254401 Expired - Fee Related CN202676583U (en) | 2012-05-31 | 2012-05-31 | Light source system of light interference gas detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202676583U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092890A (en) * | 2016-08-09 | 2016-11-09 | 上海禾赛光电科技有限公司 | The optical assay device of gas and method |
| CN108072610A (en) * | 2018-01-17 | 2018-05-25 | 南开大学 | Detection device in a kind of smoke pipe |
| CN108226069A (en) * | 2018-01-17 | 2018-06-29 | 南开大学 | A kind of sulfur dioxide detection device |
| CN109404785A (en) * | 2018-11-22 | 2019-03-01 | 珠海博明软件有限公司 | A kind of source of parallel light |
| CN111396761A (en) * | 2020-04-25 | 2020-07-10 | 复旦大学 | Aspheric double-lens L ED head lamp based on illumination principle |
-
2012
- 2012-05-31 CN CN 201220254401 patent/CN202676583U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092890A (en) * | 2016-08-09 | 2016-11-09 | 上海禾赛光电科技有限公司 | The optical assay device of gas and method |
| CN106092890B (en) * | 2016-08-09 | 2019-05-28 | 上海禾赛光电科技有限公司 | The optical assay device and method of gas |
| CN108072610A (en) * | 2018-01-17 | 2018-05-25 | 南开大学 | Detection device in a kind of smoke pipe |
| CN108226069A (en) * | 2018-01-17 | 2018-06-29 | 南开大学 | A kind of sulfur dioxide detection device |
| CN109404785A (en) * | 2018-11-22 | 2019-03-01 | 珠海博明软件有限公司 | A kind of source of parallel light |
| CN111396761A (en) * | 2020-04-25 | 2020-07-10 | 复旦大学 | Aspheric double-lens L ED head lamp based on illumination principle |
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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: 20130116 Termination date: 20200531 |