CN205719253U - A kind of spectrogrph with positioning function - Google Patents
A kind of spectrogrph with positioning function Download PDFInfo
- Publication number
- CN205719253U CN205719253U CN201620267762.2U CN201620267762U CN205719253U CN 205719253 U CN205719253 U CN 205719253U CN 201620267762 U CN201620267762 U CN 201620267762U CN 205719253 U CN205719253 U CN 205719253U
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- China
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- spectrogrph
- visual field
- fragmenting plate
- positioning function
- collimating mirror
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Abstract
This utility model belongs to optical field, particularly relates to a kind of spectrogrph with positioning function.Spectrogrph can obtain the spectral information of up to a hundred passages by dispersion element or interference element, generally carried out record by the row pixel of linear array detector or planar array detector or the row pixel of planar array detector, for avoiding Spectra aliasing, field stop is needed to come limited target visual field, this utility model devises a field stop reflected in non-transmissive district, reflecting part enters camera, transmissive portion enters spectrogrph, thus realize scene imaging, target positional information in the scene can be obtained when obtaining target optical spectrum information simultaneously, and then can be with the selection to measuring target of the direct light spectrometer.
Description
Technical field
This utility model belongs to optical field, particularly relates to a kind of spectrogrph with positioning function.
Background technology
Spectrogrph can obtain the spectral information of up to a hundred passages of target, has a wide range of applications at military and civil area.Spectrogrph is generally recorded information by linear array detector, it means that spectrogrph can only detect the spectral information of target and cannot obtain the image of scene, and user cannot accurately determine the position of spectrometer measurement target.Target measured by this meeting derivative spectomstry instrument user might not be intended to the target measured, and is very inconvenient in actual use.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of spectrogrph with positioning function, and spectrogrph is obtained in that scene image in reality is measured, and then accurately determines the position of spectrometer measurement target.
This utility model be the technical scheme is that by the above-mentioned technical problem of solution
Thering is provided a kind of spectrogrph with positioning function, it is characterized in that and also includes imaging lens, visual field fragmenting plate, collimating mirror, camera；
The optical axis direction of described imaging lens and the optical axis direction of collimating mirror are symmetrical about visual field fragmenting plate reflecting surface normal direction, are disposed with beam orifice in the middle part of the fragmenting plate of described visual field；
Scene objects imaged mirror imaging on the fragmenting plate of visual field, visual field fragmenting plate is divided into echo area and transmission area, wherein, the scene of echo area enters camera as collimated mirror is collimated into directional light, and the target picture of transmission area beam orifice on the fragmenting plate of visual field enters spectrogrph.
Wherein:
(i) imaging lens: scene objects is imaged on the fragmenting plate of visual field；
(ii) visual field fragmenting plate: visual field fragmenting plate is divided into echo area and transmission area, scene picture to be reflected in echo area, and target picture is transmitted at transmission area, and transmission area is positioned in the middle of the fragmenting plate of visual field, and visual field fragmenting plate forms an angle with imaging lens optical axis；
(iii) collimating mirror: the target surface consistent size of collimating mirror and imaging lens, collimating mirror is symmetrically installed with visual field fragmenting plate reflecting surface normal direction with the optical axis of imaging lens；
(iv) camera: scene enters camera secondary imaging after being collimated into directional light as collimated mirror；
(v) spectrogrph: target picture enters the spectrogrph with optical fiber or slit after the fragmenting plate transmission of visual field and obtains spectrum.
The imaging lens of above-mentioned design requirement and collimating mirror target surface consistent size, just the same with imaging lens and collimating mirror is optimal；
The above-mentioned optical axis being designed like mirror and collimating mirror is symmetrically installed with visual field fragmenting plate reflecting surface normal direction, becomes 45 degree and optimal to be referred to as fragmenting plate reflecting surface normal with visual field fragmenting plate reflecting surface normal with imaging lens and collimating mirror optical axis；
The visual field fragmenting plate that above-mentioned design requires be middle to plate anti-reflection film or not plated film, around plate the plate glass of high-reflecting film, plate glass coated surface transmission area is centrally located on the focal plane of imaging lens and collimating mirror, it is elliptical aperture for point target transmission area, it is rectangle to line target transmission area, fragmenting plate transmission area projection size on imaging lens focal plane in visual field is optimal slightly larger than optical fiber core diameter size or spectrograph slit, the fragmenting plate echo area, visual field projection size on imaging lens and collimating mirror focal plane determines the visual field of scene imaging, being optimal equal to camera imaging visual field；
The spectrogrph that above-mentioned design requires is optimal with the external interchangeable spectrogrph of fiber spectrometer or slit；
The camera that above-mentioned design requires, it is optimal that, aperture diaphragm consistent with collimating mirror with camera lens optical axis mates with collimating mirror emergent pupil.
The beneficial effects of the utility model are:
1., after using this utility model, can obtain target positional information in the scene, and then the selection of direct light spectrometry target when obtaining target optical spectrum information simultaneously；
2. this utility model is applicable to fiber spectrometer and the spectrogrph of band slit；
3. this utility model is by changing imaging lens and the coupling mirror of different focal, it is adaptable to the spectral measurement of different visual fields；
Effect the most of the present utility model realizes simple, convenient, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present utility model；
Fig. 2 a is point target visual field fragmenting plate；
Fig. 2 b is line target visual field fragmenting plate；
In figure, 1--imaging lens, 2--visual field fragmenting plate, 3--collimating mirror, 4--camera, 5--spectrogrph.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, this utility model is described in detail.
The principle of the invention: spectrogrph can obtain the spectral information of up to a hundred passages by dispersion element or interference element, generally carried out record by the row pixel of linear array detector or planar array detector or the row pixel of planar array detector, for avoiding Spectra aliasing, field stop is needed to come limited target visual field, thus target is isolated with scene, the present invention devises a field stop reflected in non-transmissive district, reflecting part enters camera, transmissive portion enters spectrogrph, thus can be to scene imaging while obtaining target optical spectrum information, to obtain target positional information in the scene, and then can be with the selection to measuring target of the direct light spectrometer.
Operation principle of the present utility model:
I () target scene picture separates: being imaged on the fragmenting plate of visual field after the imaged mirror of scene objects, at echo area and the transmission area of visual field fragmenting plate, scene picture is reflected, and target picture is transmitted；
(ii) scene picture collimation: scene picture, after visual field fragmenting plate reflects, enters collimating mirror and is collimated into directional light；
(iii) scene secondary imaging: scene picture collimation is received for entering camera after directional light；
(iv) target optical spectrum detection: target picture is received by spectrogrph after visual field demarcation strip is transmitted into optical fiber or slit.
Work process of the present utility model includes implemented below step:
1) imaging lens of device is pointed to scene objects to be measured, after scene objects imaged mirror imaging, the reflection of visual field fragmenting plate, collimating mirror collimation, enter camera, it is thus achieved that in the middle of a width, have the scene image of dark circle, record object positional information；
2) if the dark circle present position at scene image center is not required to the target measured, adjusting apparatus makes the target that dark ring cover is to be measured；
3), after target imaged mirror imaging, visual field fragmenting plate transmission, spectrogrph is entered, it is thus achieved that the spectral radiation data of target.
Claims (8)
1. a spectrogrph with positioning function, it is characterised in that: also include imaging lens, visual field fragmenting plate,
Collimating mirror, camera；
The optical axis direction of described imaging lens and the optical axis direction of collimating mirror are about fragmenting plate reflecting surface normal side, visual field
To symmetry, in the middle part of the fragmenting plate of described visual field, it is disposed with beam orifice；
Scene objects imaged mirror imaging on the fragmenting plate of visual field, visual field fragmenting plate is divided into echo area and transmission area,
Wherein, the scene of echo area enters camera as collimated mirror is collimated into directional light, and the target picture of transmission area is through regarding
Beam orifice on the fragmenting plate of field enters spectrogrph.
A kind of spectrogrph with positioning function the most according to claim 1, it is characterised in that: described
The optical axis direction of imaging lens becomes 45 with visual field fragmenting plate reflecting surface normal direction respectively with the optical axis direction of collimating mirror
Degree angle.
A kind of spectrogrph with positioning function the most according to claim 1, it is characterised in that: described
Visual field fragmenting plate be middle plating anti-reflection film or not plated film, around plate the plate glass of high-reflecting film.
A kind of spectrogrph with positioning function the most according to claim 3, it is characterised in that: described
Plate glass coated surface transmission area is centrally located on the focal plane of imaging lens and collimating mirror.
A kind of spectrogrph with positioning function the most according to claim 1, it is characterised in that: described
In the middle part of the fragmenting plate of visual field, beam orifice is elliptical aperture or rectangular opening.
A kind of spectrogrph with positioning function the most according to claim 5, it is characterised in that: described
The fragmenting plate echo area, visual field projection size on imaging lens and collimating mirror focal plane is equal to camera imaging visual field, depending on
Field fragmenting plate transmission area projection size on imaging lens focal plane is more than optical fiber core diameter size or spectrograph slit.
A kind of spectrogrph with positioning function the most according to claim 1, it is characterised in that: described
Spectrogrph is fiber spectrometer or the external replaceable spectrogrph of slit.
A kind of spectrogrph with positioning function the most according to claim 1, it is characterised in that: described
The optical axis direction of camera lens is consistent with the optical axis direction of collimating mirror, and the aperture diaphragm of camera lens goes out with collimating mirror
Pupil mates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267762.2U CN205719253U (en) | 2016-03-31 | 2016-03-31 | A kind of spectrogrph with positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267762.2U CN205719253U (en) | 2016-03-31 | 2016-03-31 | A kind of spectrogrph with positioning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719253U true CN205719253U (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620267762.2U Expired - Fee Related CN205719253U (en) | 2016-03-31 | 2016-03-31 | A kind of spectrogrph with positioning function |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931901A (en) * | 2017-01-13 | 2017-07-07 | 北京理工大学 | A kind of linear field dispersion model interferometer of off-axis illumination |
| CN106931900A (en) * | 2017-01-13 | 2017-07-07 | 北京理工大学 | A kind of linear field dispersion model interferometer of coaxial-illuminating |
-
2016
- 2016-03-31 CN CN201620267762.2U patent/CN205719253U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931901A (en) * | 2017-01-13 | 2017-07-07 | 北京理工大学 | A kind of linear field dispersion model interferometer of off-axis illumination |
| CN106931900A (en) * | 2017-01-13 | 2017-07-07 | 北京理工大学 | A kind of linear field dispersion model interferometer of coaxial-illuminating |
| CN106931901B (en) * | 2017-01-13 | 2019-07-23 | 北京理工大学 | A kind of linear field dispersion template interferometer of off-axis illumination |
| CN106931900B (en) * | 2017-01-13 | 2019-07-23 | 北京理工大学 | A kind of linear field dispersion template interferometer of coaxial-illuminating |
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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: 20161123 Termination date: 20180331 |