CN106768858B - A kind of continuously adjustable asterism continuous variable formula star chart generating device of background - Google Patents
A kind of continuously adjustable asterism continuous variable formula star chart generating device of background Download PDFInfo
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- CN106768858B CN106768858B CN201611114756.4A CN201611114756A CN106768858B CN 106768858 B CN106768858 B CN 106768858B CN 201611114756 A CN201611114756 A CN 201611114756A CN 106768858 B CN106768858 B CN 106768858B
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- lcos
- dazzling screen
- lens barrel
- stray light
- diffusion lens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
Abstract
The invention discloses a kind of backgrounds to be continuously adjusted asterism continuous variable formula star chart generating device, by collimating optical system, triangular prism, LCOS I, LCOS II, anti-dazzling screen I, anti-dazzling screen II, attenuator, polarizing film, collimated light source, inhibits stray light diffusion lens barrel I, inhibits stray light diffusion lens barrel II and stray light diffusion lens barrel III is inhibited to form.The star map image that background is continuously adjusted asterism continuous variable is collectively formed after the effect of collimating optical system in LCOS I, LCOS II, anti-dazzling screen I and anti-dazzling screen II.
Description
Technical field
The present invention relates to photoelectric instrument designing techniques more particularly to a kind of background to be continuously adjusted asterism continuous variable formula star chart
Generating device.
Background technique
It is higher and higher to the required precision of optical imagery sensor with the development of China's means of optical navigation technique, applied field
It closes also more and more extensive.Especially in spacecrafts rendezvous test, two spacecrafts are close with octuple speed faster than bullet and dock
Unification, such cross need the higher optical imagery sensor of precision.And high-precision optical is entering space at image sensor
Before work, it is necessary to carry out complete observation experiment on ground.
Star chart generating device is one of the important composition equipment that optical imagery sensor carries out Laboratory Observation test.Star chart
Generating device is different according to star chart occurring principle, is divided into the fixed star chart generating device of the adjustable asterism of background and the fixed asterism of background
Continuous adjustable star chart generating device.Former star chart generating device is limited by working principle, and to cannot achieve asterism continuously adjustable,
But because asterism fixation can prepare asterism by laser writing technology, to obtain higher asterism position precision, it is better than ± 1 μ
m；Latter star chart generating device overcomes asterism caused by first two star chart generating device working principle and can not be continuously adjusted, and leads to
It crosses using LCD, LCOS and DMD as star chart display device, realizes the continuously adjustable star chart of asterism and occur, but by display device
Pixel Dimensions limitation, asterism position precision is not high, be better than ± 10 μm, meanwhile, limited by working principle, can only realize that background is solid
Fixed star chart occurs.
Needs are tested in order to meet high-precision optical into the Laboratory Observation of image sensor, a kind of star chart is needed to fill
It sets, not only has the characteristics that the asterism position precision of the fixed star chart generating device of the adjustable asterism of background is high, background is adjustable, simultaneously
Have the characteristics that the asterism position of the fixed asterism continuous adjustable star chart generating device of background is continuously adjustable.
Summary of the invention
The invention patent is in view of the problems of the existing technology, to design a kind of continuously adjustable asterism continuous variable formula of background
Star chart generating device.It cannot achieve that asterism is continuously adjustable, background for the fixed star chart generating device of the adjustable asterism of existing background
Fixed asterism continuous adjustable star chart generating device is limited by the Pixel Dimensions of display device, and asterism position precision is not high to be lacked
Fall into, propose using collimating optical system, triangular prism, LCOS I, LCOS II, anti-dazzling screen I, anti-dazzling screen II, attenuator, polarizing film,
Collimated light source inhibits stray light diffusion lens barrel I, inhibits stray light diffusion lens barrel II, stray light is inhibited to spread lens barrel III, and building can
Realize that background is continuously adjusted the star chart generating device of asterism continuous variable, background is continuously adjusted within the scope of 0-0.5Sb, asterism
The continuous variable in -2Mv-+6Mv range.
The present invention solves technical solution used by prior art problem: it is continuous to design a kind of continuously adjustable asterism of background
Type variable star chart generating device, by the collimating optical system, triangular prism, the LCOS I, the LCOS II, described
Anti-dazzling screen I, the anti-dazzling screen II, the attenuator, the polarizing film, the collimated light source, the inhibition stray light spread mirror
Cylinder I, inhibition stray light diffusion lens barrel II and inhibition stray light diffusion lens barrel III form.
The collimating optical system, the triangular prism, the LCOS II, the anti-dazzling screen II and the inhibition stray light
Diffusion lens barrel II is placed in same optical path.Wherein, the triangular prism, the triangle are set behind the collimating optical system
The LCOS II and the anti-dazzling screen II are arranged side by side behind prism, and the LCOS II and the anti-dazzling screen II are respectively positioned on institute
The first position of focal plane of collimating optical system is stated, the inhibition stray light is set behind the LCOS II and the anti-dazzling screen II
Lens barrel II is spread, and the inhibitions stray light spreads lens barrel II and encases the LCOS II and the anti-dazzling screen II and with described three
Angle prism closely connects.
The attenuator, the LCOS I, the anti-dazzling screen I and inhibition stray light diffusion lens barrel I are placed in and the standard
On the vertical conjugated optical channels of straight optical system light path.Wherein, the conjugated optical channels vertical with the collimating optical system optical path
On, and the attenuator is set behind the collimating optical system, the LCOS I is arranged side by side behind the attenuator
With the anti-dazzling screen I, and the LCOS I and the anti-dazzling screen I are respectively positioned on the vertical conjugate focal planes of the collimating optical system i.e.
The inhibition stray light diffusion lens barrel I, and the suppression are set behind the second position of focal plane, the LCOS I and the anti-dazzling screen I
The LCOS I and the anti-dazzling screen I are encased and are closely connect with the triangular prism by stray light diffusion lens barrel I processed.
The polarizing film, the collimated light source and inhibition stray light diffusion lens barrel III are placed in and the collimating optics system
Optical path of uniting is vertically below in optical path.Wherein, in the lower section optical path vertical with the collimating optical system optical path, and in institute
It states and the polarizing film is set behind collimating optical system, the collimated light source, the collimation are set behind the polarizing film
The inhibition stray light diffusion lens barrel III is set behind light source, and the inhibition stray light spreads lens barrel III for the polarizing film
It encases with the collimated light source and is closely connect with the triangular prism.
In use, issuing light beam after the effect of the polarizing film by the collimated light source, being formed has polarization state
Collimated light beam；By the effect of the triangular prism, a part of collimated light beam penetrates the triangular prism, using described
Attenuator lights the LCOS I and the anti-dazzling screen I；Bevel edge of the collimated light beam described in another part through the triangular prism is anti-
It penetrates, lights the LCOS II and the anti-dazzling screen II；The LCOS I and the anti-dazzling screen I being lit are placed in the collimated light
First focal plane of system, after the effect of the attenuator, it is ensured that the LCOS I and LCOS II has phase
Same emanated energy；The LCOS II and the anti-dazzling screen II being lit are placed in second coke of the collimating optical system
Face；The LCOS I, the anti-dazzling screen I, the LCOS II and the anti-dazzling screen II pass through the effect of the collimating optical system
Afterwards, a width star chart is collectively formed in the LCOS I and LCOS II, and the anti-dazzling screen I and the anti-dazzling screen II are collectively formed one
Width background, the star chart and background superposition become a width background and are continuously adjusted asterism continuous variable star map image.
Wherein, the inhibition stray light diffusion lens barrel I is for installing the LCOS I, the anti-dazzling screen I and the decaying
Piece guarantees after there is the collimated light source of polarization state to enter inhibition stray light diffusion lens barrel I, only plays described in illumination
The effect of LCOS I, other veiling glares are absorbed by inhibition stray light diffusion lens barrel I, will not be entered light path impact and are imaged, and be isolated
External veiling glare；The inhibition stray light diffusion lens barrel II guarantees to have inclined for installing the LCOS II and the anti-dazzling screen II
After the collimated light source of polarization state enters inhibition stray light diffusion lens barrel II, only play the role of the illumination LCOS II,
Other veiling glares are absorbed by inhibition stray light diffusion lens barrel II, will not be entered the light path impact and are imaged, and are isolated external miscellaneous
Light；The inhibition stray light diffusion lens barrel III guarantees the collimated light source for installing the polarizing film and the collimated light source
Stray light will not be sent out with the collimated light beam by the polarizing film, external veiling glare is isolated.
In conclusion a kind of background of the present invention is continuously adjusted asterism continuous variable formula star chart generating device mainly by collimated light
System, LCOS I, LCOS II, anti-dazzling screen I, anti-dazzling screen II, attenuator, polarizing film, collimated light source, inhibits spuious at triangular prism
Light spreads lens barrel I, inhibits stray light diffusion lens barrel II and stray light diffusion lens barrel III is inhibited to form.A kind of background of the present invention is continuous
Adjustable asterism continuous variable formula star chart generating device carries out complete observation examination on ground at image sensor for high-precision optical
It tests, and self structure is simple, adjustment is convenient, repeatedly assembled can use.
Detailed description of the invention
Fig. 1 is the group that a kind of background provided in an embodiment of the present invention is continuously adjusted asterism continuous variable formula star chart generating device
At and structural schematic diagram；
Appended drawing reference: 1 --- collimating optical system；2 --- triangular prism；3——LCOSⅠ；4——LCOSⅡ；
5 --- anti-dazzling screen I；6 --- anti-dazzling screen II；7 --- attenuator；8 --- polarizing film；9 --- collimated light source；10 --- inhibit miscellaneous
Astigmatism spreads lens barrel I；11 --- inhibit stray light to spread lens barrel II；12 --- inhibit stray light to spread lens barrel III.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.It should be noted that in the drawings or instructions,
Similar or identical element all uses identical appended drawing reference.
Fig. 1 is that a kind of background provided in an embodiment of the present invention is continuously adjusted asterism continuous variable formula star chart generating device.It is main
It will be by collimating optical system 1, triangular prism 2, LCOS I 3, LCOS II 4, anti-dazzling screen I 5, anti-dazzling screen II 6, attenuator 7, polarizing film
8, collimated light source 9, inhibition stray light diffusion lens barrel I 10, inhibition stray light diffusion lens barrel II 11, inhibition stray light diffusion lens barrel III
12 compositions, it can be achieved that background is continuously adjusted the star chart generating device of asterism continuous variable, continuously may be used within the scope of 0-0.5Sb by background
It adjusts, asterism continuous variable in -2Mv-+6Mv range.
Collimating optical system 1, triangular prism 2, LCOS II 4, anti-dazzling screen II 6 and inhibition stray light diffusion lens barrel II 11 are placed in
In same optical path.Wherein, triangular prism 2 is set behind collimating optical system 1, LCOS is arranged side by side behind triangular prism 2
II 4 and anti-dazzling screen II 6, and LCOS II 4 and anti-dazzling screen II 6 are respectively positioned on the first position of focal plane of collimating optical system 1, LCOS II 4
Inhibit stray light to spread lens barrel II 11 with setting behind anti-dazzling screen II 6, and inhibits stray light diffusion lens barrel II 11 by LCOS II 4
It encases with anti-dazzling screen II 6 and is closely connect with triangular prism 2.
Attenuator 7, LCOS I 3, anti-dazzling screen I 5 and inhibition stray light diffusion lens barrel I 10 are placed in and 1 optical path of collimating optical system
On vertical conjugated optical channels.Wherein, on the conjugated optical channels vertical with 1 optical path of collimating optical system, and in collimating optical system 1
Attenuator 7 is set below, LCOS I 3 and anti-dazzling screen I 5, and LCOS I 3 and the equal position of anti-dazzling screen I 5 are arranged side by side behind attenuator 7
In vertical conjugate focal planes i.e. the second position of focal plane of collimating optical system 1, setting inhibits miscellaneous behind LCOS I 3 and anti-dazzling screen I 5
Astigmatism spreads lens barrel I 10, and stray light diffusion lens barrel I 10 is inhibited to encase LCOS I 3 and anti-dazzling screen I 5 and tight with triangular prism 2
Close connection.
Polarizing film 8, collimated light source 9 and inhibition stray light diffusion lens barrel III 12 are placed in vertical with 1 optical path of collimating optical system
Lower section optical path on.Wherein, and in 1 optical path of collimating optical system vertically below optical path, and behind collimating optical system 1
Polarizing film 8 is set, collimated light source 9 is set behind polarizing film 8, setting inhibits stray light to spread lens barrel behind collimated light source 9
III 12, and stray light diffusion lens barrel III 12 is inhibited to encase polarizing film 8 and collimated light source 9 and closely connect with triangular prism 2.
In use, issuing light beam after the effect of polarizing film 8 by collimated light source 9, the collimated light with polarization state is formed
Beam；By the effect of triangular prism 2, a part of collimated light beam lights I 3 He of LCOS using attenuator 7 through triangular prism 2
Anti-dazzling screen I 5；Another part collimated light beam is reflected through the bevel edge of triangular prism 2, lights LCOS II 4 and anti-dazzling screen II 6；It is lit
LCOS I 3 and anti-dazzling screen I 5 be placed in the first focal plane of collimating optical system 1, after the effect of attenuator 7, it is ensured that LCOS I
3 with the emanated energy having the same of LCOS II 4；The LCOS II 4 and anti-dazzling screen II 6 being lit are placed in the of collimating optical system 1
Two focal planes；LCOS I 3, anti-dazzling screen I 5, LCOS II 4 and anti-dazzling screen II 6 are after the effect of collimating optical system 1, I 3 He of LCOS
A width star chart is collectively formed in LCOS II 4, and a width background is collectively formed in anti-dazzling screen I 5 and anti-dazzling screen II 6, and star chart and background are superimposed as
Asterism continuous variable star map image is continuously adjusted for a width background.
Wherein, inhibit stray light diffusion lens barrel I 10 for installing LCOS I 3, anti-dazzling screen I 5 and attenuator 7, guarantee to have inclined
After the collimated light source 9 of polarization state enters inhibition stray light diffusion lens barrel I 10, only play the role of illuminating LCOS I 3, other veiling glare quilts
Inhibit stray light diffusion lens barrel I 10 to absorb, light path impact will not be entered and be imaged, and external veiling glare is isolated；Inhibit stray light diffusion
For lens barrel II 11 for installing LCOS II 4 and anti-dazzling screen II 6, guaranteeing, there is the collimated light source 9 of polarization state, which to enter, inhibits stray light to expand
After dissipating lens barrel II 11, only play the role of illuminating LCOS II 4, other veiling glares are suppressed stray light diffusion lens barrel II 11 and absorb, no
Light path impact can be entered to be imaged, and external veiling glare is isolated；Inhibit stray light diffusion lens barrel III 12 for installing polarizing film 8 and collimation
Light source 9 guarantees that collimated light source 9 and the collimated light beam by polarizing film 8 will not send out stray light, external veiling glare is isolated.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (3)
1. a kind of background is continuously adjusted asterism continuous variable formula star chart generating device, which is characterized in that
Including collimating optical system, triangular prism, LCOS I, LCOS II, anti-dazzling screen I, anti-dazzling screen II, attenuator, polarizing film, standard
Direct light source inhibits stray light diffusion lens barrel I, inhibits stray light diffusion lens barrel II and stray light is inhibited to spread lens barrel III；
The collimating optical system, the triangular prism, the LCOS II, the anti-dazzling screen II and inhibition stray light diffusion
Lens barrel II is placed in same optical path；
The triangular prism is set behind the collimating optical system, the LCOS is arranged side by side behind the triangular prism
II and the anti-dazzling screen II, and the LCOS II and the anti-dazzling screen II are respectively positioned on the first focal plane position of the collimating optical system
It sets, the inhibition stray light diffusion lens barrel II is set behind the LCOS II and the anti-dazzling screen II, and the inhibition is spuious
The LCOS II and the anti-dazzling screen II are encased and are closely connect with the triangular prism by light diffusion lens barrel II；
The attenuator, the LCOS I, the anti-dazzling screen I and inhibition stray light diffusion lens barrel I are placed in and the collimated light
It learns on the vertical conjugated optical channels of system light path；
On the conjugated optical channels vertical with the collimating optical system optical path, and it is arranged behind the collimating optical system
The LCOS I and the anti-dazzling screen I, and the LCOS I and the screening is arranged side by side behind the attenuator in the attenuator
Mating plate I is respectively positioned on vertical conjugate focal planes i.e. the second position of focal plane of the collimating optical system, the LCOS I and the anti-dazzling screen
Inhibition stray light diffusion lens barrel I is set behind I, and the inhibitions stray light spreads lens barrel I for the LCOS I and described
Anti-dazzling screen I is encased and is closely connect with the triangular prism；
The polarizing film, the collimated light source and inhibition stray light diffusion lens barrel III are placed in and the collimating optical system light
Road is vertically below in optical path；
In the lower section optical path vertical with the collimating optical system optical path, and it is arranged behind the collimating optical system
The collimated light source is arranged behind the polarizing film in the polarizing film, is arranged behind the collimated light source and described inhibits miscellaneous
Astigmatism spread lens barrel III, and the inhibitions stray light spread lens barrel III by the polarizing film and the collimated light source encase and with institute
Triangular prism is stated closely to connect.
2. a kind of background according to claim 1 is continuously adjusted asterism continuous variable formula star chart generating device, feature exists
In,
Light beam is issued after the effect of the polarizing film by the collimated light source, forms the collimated light beam with polarization state；Through
The effect of the triangular prism is crossed, a part of collimated light beam is lighted through the triangular prism using the attenuator
The LCOS I and the anti-dazzling screen I；Collimated light beam described in another part is reflected through the bevel edge of the triangular prism, is lighted described
LCOS II and the anti-dazzling screen II；The LCOS I and the anti-dazzling screen I being lit are placed in the described of the collimating optical system
First focal plane, after the effect of the attenuator, it is ensured that the LCOS I and the LCOS II outgoing energy having the same
Amount；The LCOS II and the anti-dazzling screen II being lit are placed in second focal plane of the collimating optical system；It is described
LCOS I, the anti-dazzling screen I, the LCOS II and the anti-dazzling screen II are described after the effect of the collimating optical system
A width star chart is collectively formed in the LCOS I and LCOS II, and a width background is collectively formed in the anti-dazzling screen I and the anti-dazzling screen II,
The star chart and background superposition become a width background and are continuously adjusted asterism continuous variable star map image.
3. a kind of background according to claim 1 is continuously adjusted asterism continuous variable formula star chart generating device, feature exists
In,
The inhibition stray light diffusion lens barrel I guarantees have for installing the LCOS I, the anti-dazzling screen I and the attenuator
After the collimated light source of polarization state enters inhibition stray light diffusion lens barrel I, only play the role of the illumination LCOS I,
Other veiling glares are absorbed by inhibition stray light diffusion lens barrel I, will not be entered light path impact and are imaged, and external veiling glare is isolated；
The inhibition stray light diffusion lens barrel II guarantees there is polarization state for installing the LCOS II and the anti-dazzling screen II
After the collimated light source enters inhibition stray light diffusion lens barrel II, only play the role of the illumination LCOS II, other are miscellaneous
Light is absorbed by inhibition stray light diffusion lens barrel II, will not be entered light path impact and is imaged, and external veiling glare is isolated；
The inhibition stray light diffusion lens barrel III guarantees the collimated light source for installing the polarizing film and the collimated light source
Stray light will not be sent out with the collimated light beam by the polarizing film, external veiling glare is isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611114756.4A CN106768858B (en) | 2016-12-07 | 2016-12-07 | A kind of continuously adjustable asterism continuous variable formula star chart generating device of background |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611114756.4A CN106768858B (en) | 2016-12-07 | 2016-12-07 | A kind of continuously adjustable asterism continuous variable formula star chart generating device of background |
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| CN106768858B true CN106768858B (en) | 2019-01-18 |
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| CN106768858A (en) | 2017-05-31 |
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