CN203117098U - Device capable of measuring angle-resolved spectrum with large angle - Google Patents
Device capable of measuring angle-resolved spectrum with large angle Download PDFInfo
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- CN203117098U CN203117098U CN 201320108554 CN201320108554U CN203117098U CN 203117098 U CN203117098 U CN 203117098U CN 201320108554 CN201320108554 CN 201320108554 CN 201320108554 U CN201320108554 U CN 201320108554U CN 203117098 U CN203117098 U CN 203117098U
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- object lens
- focal plane
- angle
- accurate translation
- spectrometer
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Abstract
The utility model relates to a device capable of measuring angle-resolved spectrum with a large angle. The device comprises a microscope, an optical fiber, an accurate translation pinhole, and a spectrometer, and is characterized in that the microscope uses an oil immersion lens as an objective lens; items are arranged from a tested sample to the accurate translation pinhole in the following sequence: the tested sample, the objective lens in the form of oil immersion lens, a first focal plane clung to the objective lens, an achromatic imaging lens set, and a second focal plane far away from the objective lens; the accurate translation pinhole which can accurately control location is loaded on the second focal plane; and the spectrometer is connected with the accurate translation pinhole through the optical fiber to obtain spectrum information of different angles. The device provided by the utility model adopts the microscope objective lens in the form of oil immersion lens, as light emitted from the sample cannot illuminate the objective lens directly, the measurable angle is enlarged, which realizes the angle-resolved spectrum detection for all angles.
Description
Technical field
The utility model relates to a kind of spectrum detection device, especially a kind of device of measuring the angular resolution spectrum of wide-angle.
Background technology
Development along with nanometer material science, particularly to the further investigation in fields such as micro-nano structure optics and photonic crystal, in order to grasp the spatial information of material internal complexity, the spectral information of transmission, reflection or radiation after people not only need to obtain traditional light and material and interact need be understood the spectral information of the light correspondence of different angles in these spectrum toward contact.For example to an integrated LED of photon crystal structure, because the anisotropy of photonic crystal has caused LED to have nothing in common with each other at the luminescent spectrum of different angles.At this moment use the spectral detection means with angular resolution that it is detected with regard to needing, obtain the spectral information of different angles.
The detection principle of angular resolution spectrum is to utilize the Fourier transform device, the light of the different angles that sample is sent decomposes different locus, again by the spacescan parts, with the emission light collection of each angle of sample to spectrometer, thereby obtain the spectral information of each different angles.
Existing angular resolution spectral measurement device is because the restriction of the numerical aperture of simple microscope object lens, generally can only receive the light that incides object lens in the positive and negative 60 degree scopes, so the maximum angle that adopts the angular resolution spectrum detection device of such microscope design to measure is 60 to spend, and can't measure the spectral information of the light of the more wide-angle that sample sends.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of device of measuring the angular resolution spectrum of wide-angle, and the angular resolution spectrum of positive and negative 90 degree of maximum detection amount is for the angular resolution spectral detection in fields such as micro-nano structure optics, photonic crystal.
For solving the problems of the technologies described above, the utility model provides following technical proposals: a kind of device of measuring the angular resolution spectrum of wide-angle, comprise a microscope, an optical fiber, an accurate translation pin hole and a spectrometer, it is characterized in that, described microscope uses oily mirror as object lens, from testing sample to spectral information collection be in regular turn: testing sample, the micro objective of oil mirror form, first focal plane of being close to object lens, achromatic imaging lens group, second focal plane away from object lens, load the accurate translation pin hole of an accurate control position of energy in second focal plane, spectrometer is connected to accurate translation pin hole place by optical fiber, obtains the spectral information of different angles.
Principle of the present utility model is: microscopical object lens are as a kind of Fourier transform device, the photoimaging of the different angles that sample surfaces can be sent is to the diverse location place of first focal plane of object lens rear end, the corresponding relation of position, space on angulation and the focal plane.In theory, the spectrum that records diverse location on first focal plane just can obtain the spectral information of the different angles that sample sends.But because object lens are close in first focal plane, and the object lens rear end also needs to introduce multiple light paths such as lighting source, generally directly do not carry out spectral measurement from first focal plane, but by achromatic lens combination first focal plane imaging to second focal plane away from object lens is located.Load the accurate translation pin hole of an accurate control position of energy in second focal plane, spectrometer is connected to the pin hole place by optical fiber, just can obtain the spectral information of different angles by selecting the position of pin hole, reaches the purpose of measured angular resolved spectroscopy.
In order to mate the input value aperture of imaging spectrometer, on the such scheme basis, described lens combination need be with the numerical aperture correction of object lens to the input value aperture near spectrometer.
On the such scheme basis, the micro objective of described oily mirror form is made of one deck slide, cedar oil rete and microscopical object lens, and the light that is sent by sample shines on the object lens after by slide and cedar oil rete again.Because the high index of refraction (glass is 1.52, and cedar oil is 1.515) of slide and cedar oil, according to the Snell refraction law:
The wide-angle light that is sent by sample (as 90 degree) is through behind slide and the cedar oil, and the angle that shines micro objective is about 41 degree, in the receivable scope of micro objective, can converge on the focal plane of object lens by object lens smoothly.Increased the angular range that receives the light that sample sends by oily mirror like this, maximum can reach 90 degree, thereby has realized the full angle angular resolution spectral detection to sample.
The utility model adopts a kind of micro objective of oily mirror form, and the light that is sent by sample is not to shine directly on the object lens, but increases the angle measurement degree, can reach the angular resolution spectral detection of full angle.
Description of drawings:
Fig. 1 is the synoptic diagram that the utility model can be measured wide-angle angular resolution spectral device;
Description of reference numerals among the figure:
1---testing sample;
2---slide;
3---the cedar oil rete;
4---microscopical object lens;
5---first focal plane;
6---imaging lens group;
7---second focal plane;
8---accurate translation pin hole;
9---optical fiber;
10---spectrometer;
11---microscope.
Embodiment
It is the synoptic diagram that the utility model can be measured wide-angle angular resolution spectral device as Fig. 1: a kind of device of measuring the angular resolution spectrum of wide-angle, comprise a microscope 11, an optical fiber 9, an accurate translation pin hole 8 and a spectrometer 10, wherein, described microscope uses oily mirror as object lens, from testing sample 1 to accurate translation pin hole 8 be in regular turn: testing sample 1, the micro objective of oil mirror form, first focal plane 5, achromatic imaging lens group 6, second focal plane 7, load the accurate translation pin hole 8 of an accurate control position of energy in second focal plane 7, spectrometer 10 is connected to accurate translation pin hole 8 places by optical fiber 9, obtains the spectral information of different angles.
In the present embodiment, the micro objective of described oily mirror form is made of slide 2, cedar oil rete 3 and microscopical object lens 4.
As shown in Figure 1, the directional light of a wide-angle of sending from testing sample 1 surface by slide 2 and cedar oil rete 3 after, shine on the microscopical object lens 4.Because the high index of refraction of slide and cedar oil, the wide-angle light that is sent by sample (as 90 degree) is through behind slide 2 and the arborvitae oil reservoir 3, become a less angular illumination (less than 41 degree) to microscopical object lens 4, therefore can converge at certain position of first focal plane 5 of object lens smoothly by object lens.First focal plane 5 is formed as lens combination 6 by one, images in 7 places, second focal plane away from microscopical object lens 4.The different angles of the light that the diverse location on second focal plane 7 sends corresponding to testing sample 1.Load an accurate translation pin hole 8 at 7 places, second focal plane.Spectrometer 10 is connected to accurate translation pin hole 8 by optical fiber 9.By the position of mobile pin hole, spectrometer 10 just can detect the spectral information of the light of all different angles of being sent by sample 1, thereby has realized the angular resolution spectral measurement to the full angle of sample 1.
Claims (3)
1. the device that can measure the angular resolution spectrum of wide-angle, comprise a microscope, an optical fiber, an accurate translation pin hole and a spectrometer, it is characterized in that, described microscope uses oily mirror as object lens, from testing sample to accurate translation pin hole be in regular turn: testing sample, the micro objective of oil mirror form, first focal plane of being close to object lens, achromatic imaging lens group, second focal plane away from object lens, load the accurate translation pin hole of an accurate control position of energy in second focal plane, spectrometer is connected to accurate translation pin hole place by optical fiber, obtains the spectral information of different angles.
2. the device of measuring the angular resolution spectrum of wide-angle according to claim 1 is characterized in that: described lens combination with the numerical aperture correction of object lens to the input value aperture near spectrometer.
3. the device of measuring the angular resolution spectrum of wide-angle according to claim 1, it is characterized in that: the micro objective of described oily mirror form is made of one deck slide, cedar oil rete and microscopical object lens, and the light that is sent by sample shines on the object lens after by slide and cedar oil rete again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108554 CN203117098U (en) | 2013-03-11 | 2013-03-11 | Device capable of measuring angle-resolved spectrum with large angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108554 CN203117098U (en) | 2013-03-11 | 2013-03-11 | Device capable of measuring angle-resolved spectrum with large angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117098U true CN203117098U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320108554 Expired - Lifetime CN203117098U (en) | 2013-03-11 | 2013-03-11 | Device capable of measuring angle-resolved spectrum with large angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN203117098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274879A (en) * | 2019-07-18 | 2019-09-24 | 杭州专谱光电技术有限公司 | Micro- angular resolution spectral measurement system |
-
2013
- 2013-03-11 CN CN 201320108554 patent/CN203117098U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274879A (en) * | 2019-07-18 | 2019-09-24 | 杭州专谱光电技术有限公司 | Micro- angular resolution spectral measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 200433, room 4, building 200, No. 412-1 East National Road, Shanghai, Yangpu District Patentee after: SHANGHAI FUXIANG OPTICS CO.,LTD. Address before: 200433 Building No. 3, No. 200 East State Road, Shanghai, Yangpu District 302-1 Patentee before: SHANGHAI IDEAOPTICS INSTRUMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |