CN106441559B - Block formula solar halo photometer in side - Google Patents
Block formula solar halo photometer in side Download PDFInfo
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- CN106441559B CN106441559B CN201610864726.9A CN201610864726A CN106441559B CN 106441559 B CN106441559 B CN 106441559B CN 201610864726 A CN201610864726 A CN 201610864726A CN 106441559 B CN106441559 B CN 106441559B
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- diaphragm
- stray light
- eliminating stray
- attenuator
- outer baffle
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J2001/4266—Photometry, e.g. photographic exposure meter using electric radiation detectors for measuring solar light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention relates to a kind of side to block formula solar halo photometer, and the photometer includes outer baffle, outer window, upper diaphragm for eliminating stray light, lower diaphragm for eliminating stray light, middle part diaphragm, the second attenuator, aperture diaphragm, object lens, filter wheel and CCD camera successively from left to right；The first attenuator of installation in the middle part of outer baffle, the first attenuator, the second attenuator, aperture diaphragm, object lens, CCD camera are located on same axis；Direct sunlight enters optical system imaging in CCD camera image planes through the first attenuator and through the second attenuator；Sky brightness is imaged in CCD camera image planes through the second attenuator, and the relative value of sky brightness and sun brightness is obtained by decay magnitude of the brightness ratio in CCD camera image planes in conjunction with the first attenuator.It is an advantage of the invention that interior visual field diffraction intensity can be substantially reduced, visual field Observable scope in raising；Sky brightness is observed by side simultaneously, increases the sky brightness of sun radial direction field range.
Description
Technical field
The present invention relates to a kind of solar halo photometric measuring apparatus, specifically, is related to a kind of side and blocks formula solar halo photometer.
Background technology
Solar halo photometer is mainly used in coronagraph addressing, determines whether to meet corona by measuring the brightness of sky scattering
The demand of instrument observation.The solar halo photometer used in the world at present mainly has two kinds, and one kind is John W.Evans hairs in 1948
Bright Evans Sky Photometer (ESP), a kind of is the Sky that Haosheng Lin in 2004 et al. place in Hawaii
Brightness Monitor(SBM).Chinese Academy of Sciences's Yunnan Observatory is exactly to copy SBM systems in the solar halo photometer of manufacture in 2011
The solar halo photometer made, but by some improvement and more advanced CCD is used, greatly improve its temporal resolution.ESP
Multiple solar stations, which are placed on, with SBM carries out solar halo photometric measurement all the year round, and the solar halo photometer quilt of Yunnan Observatory
Solar halo for Dali, dooly snow mountain and other places measures.
The solar halo photometer (see article Evans J.W.1948, J.Opt.Soc.Am., 38,1083) of ESP types is predominantly
By similar to the structure for covering formula coronagraph outside, while using light wedge type gradual change attenuator decay direct sunlight, pass through observation
When direct sunlight after decay is identical with the sky brightness after elimination diffraction light, obtained by the decay level of light wedge type attenuator
To the parameter of sky brightness.The sky brightness of the solar halo photometer, only Observable Single wavelength of this structure, it is impossible to big for measuring
Aerosol load and integrated water vapor conteut；Manually operated additionally, due to it, it is not observed all the year round continuously.And
Its cost is also higher.
SBM types solar halo photometer (see article Lin H S, Penn M J.PASP, 2004,116:652 and Liu Nianping
Deng " solar halo measures Xanthophyll cycle experiment spuious with solar halo photometer outer rim " Astronomica Sinica 52 (02) (2011):160-170.) it is
It is simplified it is outer cover formula coronagraph structure, mainly eliminate the diffraction light of interior visual field by using the outer blindage of multilayer o-ring winding,
Outside eliminates the scatter stray light of instrument lens barrel wall using diaphragm for eliminating stray light simultaneously.Direct sunlight passes through in outer blindage simultaneously
Heart perforate, and center direct sunlight is decayed to 10 using two ND2 attenuator-4Magnitude.The solar halo photometer of SBM types
The advantages of be that its stability is good, full-automatic observation, low cost etc..Its shortcoming is mainly the diffraction light of interior visual field and outer visual field
It is very strong, limit the observation of interior visual field and outer visual field, in captured image interior visual field and outer visual field produce two it is bright
Annulus, it is only 4R to make visual field in its minimum reality⊙(R⊙For solar photosphere mean radius).The solar halo photometer of Yunnan Observatory enters
The suppression of the outer visual field diffraction in part is gone, but its method suppressed is reduces the 3rd diaphragm bore, outside this method can reduce
Visual field diffraction, but the vignetting of outer visual field can be caused to increase simultaneously, or even directly reduce actual observable outer visual field.
The content of the invention
It is an object of the invention to provide a kind of side to block formula solar halo photometer, can substantially reduce interior visual field diffraction intensity,
Visual field Observable scope in raising；Sky brightness is observed by side simultaneously, increases the sky brightness of sun radial direction field range.
The technical scheme is that：Formula solar halo photometer is blocked in a kind of side, and the photometer includes successively from left to right
Outer baffle, outer window, upper diaphragm for eliminating stray light, lower diaphragm for eliminating stray light, middle part diaphragm, the second attenuator, aperture diaphragm, object lens, filter
Halo and CCD camera；Outer baffle is vertical to be arranged at the photometric left part, and outer baffle is highly less than outer window height, outer baffle
Block 2R⊙Direct sunlight, it is not irradiated on object lens, the first attenuator of installation in the middle part of outer baffle, the first attenuator,
Second attenuator, aperture diaphragm, object lens, CCD camera are located on same axis；Direct sunlight is through the first attenuator and through second
Attenuator enters optical system imaging in CCD camera image planes；Sky brightness is imaged on CCD camera image planes through the second attenuator
On, the decay magnitude of the first attenuator is 10-4, the decay magnitude of the second attenuator is 10-2；By bright in CCD camera image planes
Degree obtains the relative value of sky brightness and sun brightness than the decay magnitude in conjunction with the first attenuator.
Preferably, the photometer is integrally in rectangular configuration, and rectangular configuration left end is open outer window, direct sunlight
Horizontal on the left of from outer window to inject optical system, sky brightness injects optical system from outer window left side, wherein, sky is bright
Degree includes outer field rays and interior field rays, i.e., the outer observable sky brightness field range of window is 3R⊙~10R⊙。
Preferably, 3 layers of setting of the outer baffle point, i.e., outer baffle shares 3 pieces, respectively outer baffle one, outer baffle two
With outer baffle three, 3 pieces of outer baffle sizes are sequentially reduced, and 3 pieces of outer baffles are arranged successively from left to right；Outer baffle one is arranged at outer
At window, the first attenuator of the middle part of outer baffle one installation, the second light hole of the middle part of outer baffle two installation, the middle part of outer baffle three are installed
3rd light hole, and the first attenuator, the second light hole and the 3rd light hole are located in same horizontal line, the first attenuator declines
It is 10 to be reduced level-4。
Preferably, the upper diaphragm for eliminating stray light uses Rectangular Plate Structure, the upper end of upper diaphragm for eliminating stray light and rectangular configuration
The connection of upper top inwall, the lower end of upper diaphragm for eliminating stray light is in vacant state, the rear and front end of upper diaphragm for eliminating stray light respectively with rectangle
The front and rear inwall connection of structure, upper diaphragm for eliminating stray light are installed relative to the upper top of rectangular configuration to tilt.
Preferably, angle is 45 ° between the upper diaphragm for eliminating stray light and the upper top of rectangular configuration.
Preferably, the upper diaphragm for eliminating stray light include upper diaphragm for eliminating stray light one, upper diaphragm for eliminating stray light two, on disappear veiling glare light
Door screen three, upper diaphragm for eliminating stray light one, upper diaphragm for eliminating stray light two, upper diaphragm for eliminating stray light three are parallel to each other；Under upper diaphragm for eliminating stray light three
Brim height is less than outer baffle top edge height and higher than aperture diaphragm top edge height；The lower edge position of upper diaphragm for eliminating stray light two
In the top of aperture diaphragm lower edge and the upper lower edge line of diaphragm for eliminating stray light three；The lower edge of upper diaphragm for eliminating stray light one is positioned at upper
The top of the lower edge of diaphragm for eliminating stray light two and the upper lower edge line of diaphragm for eliminating stray light three；Outer window top edge is positioned at the veiling glare light that above disappears
The top of a late lower edge and the upper lower edge line of diaphragm for eliminating stray light two.
Preferably, the lower diaphragm for eliminating stray light is arranged at the bottom inwall of rectangular configuration, lower diaphragm for eliminating stray light and rectangle
The bottom vertical connection of structure.
Preferably, the lower diaphragm for eliminating stray light shares 4, and two lower diaphragm for eliminating stray light parallel distributeds are in the upper veiling glare light that disappears
Between door screen one and upper diaphragm for eliminating stray light two, two lower diaphragm for eliminating stray light parallel distributeds are in diaphragm for eliminating stray light two and upper diaphragm for eliminating stray light
Between three.
Preferably, the filter wheel sets 4 optical filters altogether, 4 optical filters can rotate respectively to object lens same level
Face.
The present invention having the beneficial effect that compared with prior art：
(1) photometer device of the invention replaces outer shelter structure using three layers of outer baffle structure so that diffraction light reduces
More than at least one magnitude so that smaller interior visual field can be observed；
(2) block the outer baffle structure of formula by side, i.e., using side observed pattern, can cause bigger visual field into
As in image planes, it is 2~10R to design visual field at present⊙, influenceed by vignetting and diffraction light, visual field can reach 3R in reality⊙, less than SBM
4R⊙, outer visual field expands to 10R⊙, the sky brightness plateau region expansion not influenceed by diffraction light can be caused, so as to get
Sky brightness is more accurate；
(3) diaphragm for eliminating stray light blocks design by layering on, not only eliminates the scattering light of lens barrel wall, while eliminate outer visual field
Diffraction light；Upper diaphragm for eliminating stray light, which uses, simultaneously is obliquely installed so that is irradiated to the scattering shadow of the direct sunlight on its surface
Ringing reduces.
Brief description of the drawings
The overall light channel structure figure of Fig. 1 present invention；
The light channel structure side view of Fig. 2 present invention；
Diffraction intensity radial distribution of Fig. 3 outer baffles at aperture of objective lens；
Diaphragm for eliminating stray light schematic diagram on Fig. 4.
In figure, 1-outer baffle one；2-outer baffle two；3-outer baffle three；4-outer window；5-go up diaphragm for eliminating stray light one；
6-go up diaphragm for eliminating stray light two；7-go up diaphragm for eliminating stray light three；8-lower diaphragm for eliminating stray light；9-middle part diaphragm；10-the second decay
Piece；11-object lens；12-filter wheel；13-CCD camera；14-direct sunlight；15-interior field rays；16-outer visual field light
Line.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.With shown in Fig. 1 in described below
Orientation is described, in Fig. 1 up and down be describe in up and down, Fig. 1 institute towards direction be description in front,
It is the rear in describing away from Fig. 1 directions.
Embodiment 1
Referring to Fig. 1-Fig. 3, the present invention discloses a kind of side and blocks formula solar halo photometer, and the photometer wraps successively from left to right
Include outer baffle, outer window 4, upper diaphragm for eliminating stray light, lower diaphragm for eliminating stray light 8, middle part diaphragm 9, the second attenuator 10, aperture diaphragm,
Object lens 11, filter wheel 12 and CCD camera 13.
The photometer is integrally in rectangular configuration, and rectangular configuration left end is open outer window 4, and direct sunlight 14 is from exterior window
The left side of mouth 2 is horizontal to inject optical systems, i.e. photometer of the invention uses side observed pattern.
The photometer of the present invention replaces the outer shelter structure of tradition using outer baffle, to reduce diffraction intensity.The tool of outer baffle
Body set-up mode is：Outer baffle is vertical to be arranged at the photometric left part, and outer baffle bottom is connected with both sides with rectangular configuration, outside
Baffle plate top is in vacant state, and outer baffle is highly less than outer window height.Outer baffle shares 3 pieces, respectively outer baffle 1, outer
33,3 pieces of outer baffle sizes of baffle plate 22 and outer baffle are sequentially reduced, and outer baffle 1 is arranged at outer window 4,3 pieces of outer baffles from
Left-to-right is arranged successively.The first attenuator of the middle part of outer baffle 1 installation, the second light hole of the middle part of outer baffle 22 installation, outer baffle
33 the 3rd light holes of middle part installation, and the first attenuator, the second light hole and the 3rd light hole are located in same horizontal line, its
In, the decay magnitude of the first attenuator is 10-4。
Diffraction intensity of the outer baffle at the bore of object lens 11 can pass through Fresnel Kirchhoff diffraction integral formula 1.1, phenanthrene
Nie Er integral formulas 1.2 are calculated.
Fresnel Kirchhoff diffraction integral formula 1.1 is specially：
In formula：λ is optical wavelength；
K=2 π/λ；
r01For point P0To point P1Between position vector size；
θ is vector r01With the angle between diffraction bore Σ normal vectors n；
P0For diffractional field point coordinates；
S is diffraction surfaces infinitesimal；
P1For diffraction source point.
Fresnel integral formula 1.2 is specially：
In formula：
λ is optical wavelength；
K=2 π/λ；
y0For the ordinate of baffle edge；
Y is site P1Ordinate；
Z is a baffle plate to site P1Between vertical baffle direction distance.
Diffraction light complex amplitude U (P of the outer baffle 1 at the bore of object lens 11 is calculated according to formula 1.10), then root
The diffraction light complex amplitude U of outer baffle two, outer baffle three at the bore of object lens 11 is calculated successively according to formula 1.1, formula 1.2
(y), so as to obtaining diffraction intensity I of the outer baffle at the bore of object lens 11.Fig. 3 is that the radial direction of the photometer diffraction intensity is simulated
Figure.From the figure 3, it may be seen that the photometric average diffraction light intensity I is about 2.6344 × 10-6I0, wherein I0For incident intensity.And the light
The diffraction light overwhelming majority energy of degree meter is focused in image planes by object lens, is formed a bright line, is dispersed in sky brightness part
Diffraction intensity is up to 10-7I0Magnitude.Therefore, compared with blindage diffraction structure outside traditional O-ring, diffraction intensity of the invention
I is substantially reduced, i.e., at least reduces a magnitude so that smaller interior visual field can be observed.
Diaphragm for eliminating stray light is set referring to Fig. 1, in the rectangular configuration between outer baffle and object lens, and upper diaphragm for eliminating stray light is made
With for：1) the scattering light of rectangular configuration lens barrel wall is suppressed；2) diffraction light of outer window edge is suppressed.Due to spreading out for outer window edge
A very bright bright ring can be formed at outer visual field by penetrating light, by being designed to upper diaphragm for eliminating stray light so that each layer disappears veiling glare
Diaphragm blocks to the diffraction light at the diaphragm for eliminating stray light edge of preceding layer, so as to substantially reduce the diffraction light at outer window.
Referring to Fig. 1, Fig. 4, upper diaphragm for eliminating stray light structure is specially：
Upper diaphragm for eliminating stray light uses Rectangular Plate Structure, and the upper end of upper diaphragm for eliminating stray light and the upper top inwall of rectangular configuration connect
Connect, the lower end of upper diaphragm for eliminating stray light is in vacant state, the rear and front end of upper diaphragm for eliminating stray light respectively with before and after rectangular configuration in
Wall connects, and angle is 45 ° between upper diaphragm for eliminating stray light and the upper top of rectangular configuration, i.e., upper diaphragm for eliminating stray light is tilted using 45 ° pacifies
Dress.
Upper diaphragm for eliminating stray light specifically includes diaphragm for eliminating stray light 1, upper diaphragm for eliminating stray light 26, upper diaphragm for eliminating stray light 37,
Upper diaphragm for eliminating stray light 1, upper diaphragm for eliminating stray light 26, upper diaphragm for eliminating stray light 37 are parallel to each other.
Referring to Fig. 4, the set-up mode of each upper diaphragm for eliminating stray light is specially：
The lower edge of upper diaphragm for eliminating stray light 37 is highly less than outer baffle top edge height and high higher than aperture diaphragm top edge
Degree.The lower edge of i.e. upper diaphragm for eliminating stray light 37 is located in the umbra of outer baffle 1, and does not block outer field rays 16.
The lower edge of upper diaphragm for eliminating stray light 26 is located at aperture diaphragm lower edge and the upper lower edge line of diaphragm for eliminating stray light 37
Top.Direct sunlight that the i.e. upper edge of diaphragm for eliminating stray light 26 is subject to and caused diffraction light will be complete by upper diaphragm for eliminating stray light 37
Block entirely, it can not be irradiated to objective lens surface.
The lower edge of upper diaphragm for eliminating stray light 1 is located at the upper lower edge of diaphragm for eliminating stray light 26 and upper diaphragm for eliminating stray light 37 is following
The top of edge line.The diffraction light of the i.e. upper lower edge of diaphragm for eliminating stray light 1 will be blocked completely by upper diaphragm for eliminating stray light 26, and shine
Penetrate less than objective lens surface.
Meanwhile be the diffraction light for eliminating outer window top edge, upper diaphragm for eliminating stray light 1, upper diaphragm for eliminating stray light 26, on disappear
Veiling glare diaphragm 37 should meet following condition, i.e., outer window top edge is located at the upper lower edge of diaphragm for eliminating stray light 1 and the veiling glare light that above disappears
The top of late 26 lower edge lines, now, the diffraction light of outer window top edge will be blocked completely by upper diaphragm for eliminating stray light 1, and
Irradiation is less than objective lens surface.
So far, outer window, upper diaphragm for eliminating stray light 1, the diffraction light at the edge of upper diaphragm for eliminating stray light 26 are blocked, and on
Diaphragm for eliminating stray light 37 by direct sunlight, its diffraction light due to not can be neglected.And the above-mentioned arrangement side of upper diaphragm for eliminating stray light
Formula, the scatter stray light that inner wall surface is pushed up in rectangular configuration can be blocked completely, simultaneously as upper diaphragm for eliminating stray light uses 45 °
Installation is tilted, it can be seen from scattering theory, such a set-up mode causes diaphragm for eliminating stray light surface scattering to outer baffle right side
Scattering substantially reduces into the scattering light of object lens again.
Lower diaphragm for eliminating stray light 8 is arranged at the bottom inwall of rectangular configuration, lower diaphragm for eliminating stray light 8 and the lower dolly of rectangular configuration
It is direct-connected to connect.Lower diaphragm for eliminating stray light 8 shares 4, wherein two lower parallel distributeds of diaphragm for eliminating stray light 8 in upper diaphragm for eliminating stray light 1 with
Between upper diaphragm for eliminating stray light 26, two lower parallel distributeds of diaphragm for eliminating stray light 8 are in diaphragm for eliminating stray light 26 and upper diaphragm for eliminating stray light 37
Between.
The photometer of the present invention, the first attenuator of outer baffle 1, the second light hole of outer baffle 22, outer baffle 23
The 3rd light hole, the diaphragm through hole of middle part diaphragm 9, the second attenuator 10, aperture diaphragm, object lens 11, CCD camera 13 be in
On same axis.The object lens 11 of the present invention use achromatic objective, and aperture diaphragm is close to the left surface of object lens 11.Meanwhile to obtain
The sky brightness of different-waveband, filter wheel 12 of the invention set 4 optical filters altogether, 4 optical filters can rotate respectively to object lens
On 11 same axis.
The photometric course of work of the invention once is described below：
The optical path of direct sunlight is：Direct sunlight → outer baffle 1 (the first attenuator) → outer baffle 22
(the second light hole) → outer baffle 33 (the 3rd light hole) → middle part diaphragm 9 (diaphragm through hole) → second 10 → aperture of attenuator
Diaphragm → object lens 11.I.e. direct sunlight is 10 by the decay magnitude on outer baffle 1-4The first attenuator and through attenuation
Level is 10-2The second attenuator 10 enter optical system imaging in image planes.
The optical path of sky brightness is：The interior outer field rays 16 of the field rays 15/ → (light of 4 → middle part of outer window diaphragm 9
Late through hole) → second 10 → the aperture diaphragm of attenuator → object lens 11.I.e. sky brightness is 10 through the magnitude that decays-2The second attenuator
10 are imaged in image planes.That is, can be imaged by the photometer to direct sunlight and sky brightness simultaneously, pass through
The decay magnitude of both brightness ratios in image planes and respective attenuation piece, it can obtain the relative of sky brightness and direct sunlight
Value.
Claims (6)
1. formula solar halo photometer is blocked in a kind of side, it is characterised in that：The photometer includes outer baffle, exterior window successively from left to right
Mouth (4), upper diaphragm for eliminating stray light, lower diaphragm for eliminating stray light (8), middle part diaphragm (9), the second attenuator (10), aperture diaphragm, object lens
(11), filter wheel (12) and CCD camera (13)；Outer baffle is vertical to be arranged at the photometric left part, and outer baffle is highly less than outer
Window height, the first attenuator of outer baffle middle part installation, the first attenuator, the second attenuator (10), aperture diaphragm, object lens
(11), CCD camera (13) is located on same axis；Direct sunlight (14) through the first attenuator and through the second attenuator (10),
Aperture diaphragm, object lens (11), filter wheel (12) are imaged in CCD camera (13) image planes；Sky brightness through the second attenuator (10),
Aperture diaphragm, object lens (11), filter wheel (12) are imaged in CCD camera (13) image planes；The photometer is integrally in rectangular configuration, square
Shape structure left end is open outer window (4), and direct sunlight (14) is horizontal on the left of outer window (4) to be injected；Disappear on described miscellaneous
Light diaphragm uses Rectangular Plate Structure, and the upper end of upper diaphragm for eliminating stray light and the upper top inwall of rectangular configuration connect, upper diaphragm for eliminating stray light
Lower end be in vacant state, the rear and front end of upper diaphragm for eliminating stray light is connected with the front and rear inwall of rectangular configuration respectively, and above disappear veiling glare
Diaphragm is installed relative to the upper top of rectangular configuration to tilt；The lower diaphragm for eliminating stray light (8) is arranged in the bottom of rectangular configuration
Wall, lower diaphragm for eliminating stray light (8) and the bottom vertical connection of rectangular configuration.
2. formula solar halo photometer is blocked in side according to claim 1, it is characterised in that：The outer baffle shares 3 pieces, point
Not Wei outer baffle one (1), outer baffle two (2) and outer baffle three (3), 3 pieces of outer baffle sizes are consistent, and 3 pieces of outer baffles from a left side to
Arrange successively on the right side；Outer baffle one (1) is arranged at outer window (4) place, and the first attenuator, outer baffle are installed in the middle part of outer baffle one (1)
The second light hole of installation, the 3rd light hole of outer baffle three (3) middle part installation in the middle part of two (2), and the first attenuator, the second light hole
It is located at the 3rd light hole in same horizontal line, the decay magnitude of the first attenuator is 10-4。
3. formula solar halo photometer is blocked in side according to claim 1, it is characterised in that：The upper diaphragm for eliminating stray light and square
Angle is 45 ° between the upper top of shape structure.
4. formula solar halo photometer is blocked in the side according to claim 1 or 3, it is characterised in that：The upper diaphragm for eliminating stray light
Including upper diaphragm for eliminating stray light one (5), upper diaphragm for eliminating stray light two (6), upper diaphragm for eliminating stray light three (7), upper diaphragm for eliminating stray light one (5),
Upper diaphragm for eliminating stray light two (6), upper diaphragm for eliminating stray light three (7) are parallel to each other；Upper (7) lower edge of diaphragm for eliminating stray light three is highly less than outer
Baffle plate top edge is highly and higher than aperture diaphragm top edge height；Upper (6) lower edge of diaphragm for eliminating stray light two is located under aperture diaphragm
The top at edge and upper (7) lower edge line of diaphragm for eliminating stray light three；Upper (5) lower edge of diaphragm for eliminating stray light one is positioned at the veiling glare light that above disappears
The top of late two (6) lower edges and upper (7) lower edge line of diaphragm for eliminating stray light three；Outer window top edge is located at upper diaphragm for eliminating stray light
The top of one (5) lower edge and upper (6) lower edge line of diaphragm for eliminating stray light two.
5. formula solar halo photometer is blocked in side according to claim 4, it is characterised in that：The lower diaphragm for eliminating stray light (8)
Share 4, two lower diaphragm for eliminating stray light (8) parallel distributeds in upper diaphragm for eliminating stray light one (5) and upper diaphragm for eliminating stray light two (6) it
Between, two lower diaphragm for eliminating stray light (8) parallel distributeds are between upper diaphragm for eliminating stray light two (6) and upper diaphragm for eliminating stray light three (7).
6. formula solar halo photometer is blocked in side according to claim 1, it is characterised in that：The filter wheel (12) sets 4 altogether
Individual optical filter, 4 optical filters can rotate respectively to on object lens (11) same axis.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864726.9A CN106441559B (en) | 2016-09-29 | 2016-09-29 | Block formula solar halo photometer in side |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864726.9A CN106441559B (en) | 2016-09-29 | 2016-09-29 | Block formula solar halo photometer in side |
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| Publication Number | Publication Date |
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| CN106441559A CN106441559A (en) | 2017-02-22 |
| CN106441559B true CN106441559B (en) | 2017-11-21 |
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| CN107515044A (en) * | 2017-09-21 | 2017-12-26 | 中国科学院云南天文台 | The atmospheric parameter monitoring device and method of the big visual field sky imaging technique of multiband |
| CN114460757B (en) * | 2022-01-28 | 2022-11-18 | 山东大学 | Sun globe imager |
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| DE19916000A1 (en) * | 1999-04-09 | 2000-10-12 | Harald Paleske | Coronographic optical system is for astronomical observation of manifestations on sun, such as sun spots, flares, protuberances in spectral and neutral light, chromosphere at sun edge, moon, planets and double stars |
| DE102010048140B4 (en) * | 2010-10-11 | 2016-02-18 | Bruker Optik Gmbh | Method for coupling radiation into an FTIR spectrometer |
| CN103292905B (en) * | 2013-05-31 | 2016-01-13 | 中国科学院长春光学精密机械与物理研究所 | A kind of broadband solar spectrum irradiancy monitoring device |
| CN103309042A (en) * | 2013-06-28 | 2013-09-18 | 中国科学院长春光学精密机械与物理研究所 | Centralized solar coronagraph light path structure |
| CN103309043A (en) * | 2013-06-28 | 2013-09-18 | 中国科学院长春光学精密机械与物理研究所 | Solar coronagraph |
| CN105388617B (en) * | 2015-12-28 | 2017-09-05 | 山东大学（威海） | Semi open model is all-round to big visual field corona instrument apparatus |
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