CN207423360U - A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere - Google Patents
A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere Download PDFInfo
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- CN207423360U CN207423360U CN201721472941.0U CN201721472941U CN207423360U CN 207423360 U CN207423360 U CN 207423360U CN 201721472941 U CN201721472941 U CN 201721472941U CN 207423360 U CN207423360 U CN 207423360U
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- integrating sphere
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- sphere
- cocoon type
- light source
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Abstract
For traditional quadrature ball to obtain higher light-emitting window illuminance uniformity, and cause its occupied space big, the problem of to laboratory area and higher requirement for height, the utility model provides a kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere.Cocoon type integrating sphere, including integrating sphere body, the light inlet and light-emitting window that are arranged on integrating sphere body, the light source being arranged at the light inlet；The integrating sphere body is cocoon shape cavity, and including preceding hemisphere and later half sphere, preceding hemisphere and later half sphere are connected by middle circle shell of column or intermediate round platform section；First half sphere diameter is less than or equal to later half sphere diameter；Before the light-emitting window is opened on hemisphere, the light inlet is opened on middle circle shell of column or the side wall of intermediate round platform section.For the cocoon type integrating sphere of same size light-emitting window and traditional quadrature ball, the width and height of the utility model cocoon type integrating sphere are respectively less than traditional quadrature ball, therefore it reduces the area and height requirement that dispose place compared with traditional quadrature ball.
Description
Technical field
The utility model belongs to field of optical detection, is related to a kind of cocoon type integrating sphere and integrating sphere parallel light tube.
Background technology
Integrating sphere is a kind of sphere of boring, and cavity inner wall even application has high reflectance diffuse material, and interior
Multiple light sources are equipped with, it, theoretically can be any in integrating sphere light-emitting surface due to the integral action of integrating sphere inner wall diffusing reflection coating
Position obtains uniform youth uncle radiation.Integrating sphere can provide uniform source of light, be mainly used for the test of camera signal-to-noise ratio and radiation calibration
Deng.
The dress that integrating sphere parallel light tube is made of integrating sphere, collimating mirror, light trapping, black target, white object, light source etc.
It puts, the Stray Light Test being mainly used in optical detection.Stray light is summarized：When optical system forms the real image of object, in image planes
On in addition to being imaged by normal light path, still there is a small amount of non-imaged light to be spread in image planes, these are added at image planes
The harmful light for being not involved in direct imaging be known as stray light.During Stray Light Test, by optical system object space to be measured towards integrating sphere
Parallel light tube light-emitting window is measured determinand mirror image face by photoelectric detecting system respectively, the brightness value E of corresponding black target pictureGWith
The brightness value E of white object picture0+EG；Due to EGAnd E0+EGS optical signal m with photoelectric detecting system respectively1With electric signal m2Cheng Zheng
Than the then coefficient of stray light in optical system axis to be measured at picture point
Since traditional quadrature ball inner surface is sphere, in order to obtain higher light-emitting window illuminance uniformity, it is desirable that its perforate
Should be as far as possible small than (perforate ratio refers to the ratio between integrating sphere tapping sphere area and entire integrating sphere inner wall area), therefore increase integrating sphere
Light extraction open area, it is necessary to accordingly increase integrating sphere diameter, this, which directly results in integrating sphere and takes up space, becomes larger, to laboratory
Area and requirement for height are higher.For integrating sphere parallel light tube and so.
Utility model content
Based on background above, for traditional quadrature ball to obtain higher light-emitting window illuminance uniformity, and cause its occupancy
Space is big, and the problem of to laboratory area and higher requirement for height, the utility model provides a kind of cocoon type integrating sphere and is based on
The parallel light tube of the integrating sphere.
The technical solution of the utility model is：
Cocoon type integrating sphere including integrating sphere body, the light inlet and light-emitting window that are arranged on integrating sphere body, is arranged on institute
State the light source at light inlet；It is characterized in that：
The integrating sphere body is cocoon shape cavity, and including preceding hemisphere and later half sphere, preceding hemisphere and later half sphere lead to
It crosses middle circle shell of column or intermediate round platform section is connected；First half sphere diameter is less than or equal to later half sphere diameter；
Before the light-emitting window is opened on hemisphere, the light inlet is opened in the side of middle circle shell of column or intermediate round platform section
On wall.
Further, above-mentioned light-emitting window center is located on first half ball and the rear quarter line of centres.
Further, above-mentioned light inlet has multiple, and is evenly distributed in the middle circle shell of column or intermediate round platform section.
Further, it is contemplated that cocoon type integrating sphere is made of former and later two hemispheres and intermediate round platform/cylindrical section, compared with
Later half sphere before, intermediate round platform/cylindrical section is relatively fewer to the order of reflection of light, in order to ensure the uniformity of light-emitting window and
Stronger irradiation level, above-mentioned light inlet are uniformly distributed respectively close to preceding hemisphere and/or later half sphere.
Further, above-mentioned light inlet has multiple, is divided into two groups, and one group is distributed in the middle circle along same even circumferential
On shell of column or the intermediate round platform section wherein side wall of one end, another group along same even circumferential be distributed in the middle circle shell of column or
Among person on the side wall of the round platform section other end.
Further, above-mentioned light source at least there are two types of, variety classes light source is staggered.
Further, above-mentioned cocoon type integrating sphere further includes control system and the fan for cooling down to light source；The control
System includes light source control module, luminance adjustment module, fan control module；Light source control module is for a bright light source；Brightness
Adjustment module is used to adjust light-source brightness；Fan control module is for opening and closing of the control to light source cooling fan.
The utility model provides a kind of integrating sphere parallel light tube simultaneously, including the collimating mirror, integrating sphere, mesh set gradually
Target card slot and light trapping；It is characterized in that：The integrating sphere is above-mentioned cocoon type integrating sphere.
Further, above-mentioned collimating mirror is located at the light-emitting window of integrating sphere, and the focus of collimating mirror is located at Target Board card slot
Center at.
Compared with prior art, the utility model has the advantages that：
1st, the utility model has broken the Design Thinking of traditional quadrature ball, creates a kind of brand-new cocoon type integrating sphere, and
The change of shape is substantially reduced the angle uniformity of its light-emitting window and surface uniformity yet, is analyzed through software emulation, cocoon type product
The angle uniformity of bulb separation can be better than 95% with surface uniformity, can meet general requirement；Adaptability is good, can pass through software
Emulation optimizes hemispherical diameter before and after cocoon type integrating sphere, ensures that cocoon type integrating sphere meets angle of outlet uniformity and surface uniformity
Design requirement；For the cocoon type integrating sphere of same size light-emitting window and traditional quadrature ball, the width and height of cocoon type integrating sphere
Respectively less than traditional quadrature ball, therefore it reduces the area and height requirement that dispose place compared with traditional quadrature ball；Further
Ground can be designed cocoon type integrating sphere according to the area and height in placement place.
2nd, compared with traditional quadrature ball, the height of cocoon type integrating sphere is relatively low, therefore the central axis of its light-emitting window is relatively low, more
It is used convenient for personnel.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model cocoon type integrating sphere embodiment；
Fig. 2 is parallel light tube embodiment schematic diagram of the utility model based on cocoon type integrating sphere；
Fig. 3 is the white object plate schematic diagram of parallel light tube of the utility model based on cocoon type integrating sphere；
Fig. 4 is the black Target Board schematic diagram of parallel light tube of the utility model based on cocoon type integrating sphere；
Figure label：1- light-emitting windows；Hemisphere before 2-；3- light sources；4- light inlets；Round platform section among 5-；The later half spheres of 6-；
7- control systems；8- collimating mirrors；9- Target Board card slots；10- light trappings；11- white object plates；The black Target Boards of 12-.
Specific embodiment
Referring to Fig. 1-Fig. 4, the cocoon type integrating sphere of the utility model is mainly used for the test of camera signal-to-noise ratio and radiation calibration；
Its integrating sphere body is cocoon shape cavity, and including preceding hemisphere 2 and later half sphere 6, preceding hemisphere 2 and later half sphere 6 pass through centre
Round platform section 5 is connected, and 2 diameter of preceding hemisphere is less than later half 6 diameter of sphere, and such benefit can ensure surface uniformity
Under the premise of, 1 illuminance uniformity of light-emitting window is improved to the greatest extent.In other embodiments, preceding hemisphere 2 and later half sphere 6
It can be connected by middle circle shell of column, at this point, 2 diameter of preceding hemisphere is equal to later half 6 diameter of sphere.In practice, can pass through
The optical simulation softwares such as LightTools or Tracepro emulate, and preceding hemisphere and later half sphere are optimized, and determine
Meet the sphere diameter of light extraction bicker uniformity knead dough uniformity requirement.
Open up light-emitting window 1 on the preceding hemisphere 2 of integrating sphere body, and 1 center of light-emitting window is located at first half sphere 2 and later half
On 6 line of centres of sphere, in order to lay light source and use；Light inlet 4, light inlet 4 are opened up on the side wall of intermediate round platform section 5
Place is provided with light source 3；When light inlet 4 has multiple, preferably uniformly distributed, surface uniformity and the angle for being conducive to light-emitting window are uniform
Property；It is made of in view of cocoon type integrating sphere former and later two hemispheres and intermediate round platform section, than before later half sphere, middle circle
Platform section is relatively fewer to the order of reflection of light, and in order to ensure the uniformity of light-emitting window and stronger irradiation level, light source should try one's best
It is arranged close to front and rear hemisphere；In the present embodiment, light inlet 4 has multiple, is divided into two groups, one group is distributed in along same even circumferential
For intermediate round platform section 5 on the side wall of preceding hemisphere 2, another group is distributed in intermediate round platform section 5 after along same even circumferential
On the side wall of hemisphere 6, be conducive to utmostly using front and rear hemisphere come reflection light.In practical application, a kind of light source
Spectrum covering is not comprehensive, so the light source 3 being arranged at light inlet 4 might have two or more, is considered at this time by variety classes
The staggeredly interspersed arrangement of light source 3.In addition, to prevent that light-source temperature is excessively high, it is additionally provided in integrating sphere body or at light source and is used for
The fan to cool down to light source.
The utility model integrating sphere further includes control system 7, which mainly includes light source control module, brightness
Adjustment module, fan control module, for the operation of remote control light source and fan so that controllers take off with light source body
From, it is ensured that operation ease and security.Wherein, light source control module is for a bright light source；Luminance adjustment module is used to adjust
Save light-source brightness；Fan control module is for opening and closing of the control to light source cooling fan.
Referring to Fig. 2, to use the parallel light tube of integrating sphere shown in Fig. 1, for the Stray Light Test in optical detection；This is flat
Row light pipe includes the collimating mirror 8, cocoon type integrating sphere, light trapping 10 and the Target Board card slot 9 that set gradually；Target Board card slot 9 is used for
Place black Target Board or white object plate；Collimating mirror 8 selects transmission-type, at the light-emitting window 1 of cocoon type integrating sphere, collimating mirror 8
Focal position is located at 9 center of Target Board card slot, and in the case of ensureing that collimating mirror focal length is longer, cocoon type integrating sphere volume is less than
Generally conventional integrating sphere；Light trapping 10 is the spherical hollow space with opening, for providing the black background of black Target Board；Light trapping 10
Inner surface scribbles delustring paint, and delustring paint reflectivity is less than 5%, and opening diameter is calculated by cocoon type integrating sphere aperture efficiency and determined,
The contrast of final black and white target should be less than 0.3%；Target Board card slot 9 is used between cocoon type integrating sphere and light trapping 10
The placement and replacement of black target and white object；Black target has the Target Board of through hole for a series of centers, and interval between diameters can root
It is voluntarily selected according to demand, generally 10mm；The maximum through-hole diameter of black Target Board is equal to the opening diameter of light trapping 10；Black target
The one side of plate towards cocoon type integrating sphere is coated with the high reflectance diffuse material identical with cocoon type integrating sphere inner wall, towards light trapping
10 one side is coated with the delustring paint identical with 10 inner wall of light trapping；White object plate does not have the target of through hole for one piece of center
Plate, the material of coated on both sides are identical with black Target Board.
Claims (9)
1. cocoon type integrating sphere including integrating sphere body, the light inlet and light-emitting window that are arranged on integrating sphere body, is arranged on described
Light source at light inlet；It is characterized in that：The integrating sphere body is cocoon shape cavity, preceding including preceding hemisphere and later half sphere
Hemisphere and later half sphere are connected by middle circle shell of column or intermediate round platform section；First half sphere diameter is less than or equal to later half sphere
Diameter；Before the light-emitting window is opened on hemisphere, the light inlet is opened in middle circle shell of column or the side wall of intermediate round platform section
On.
2. cocoon type integrating sphere according to claim 1, it is characterised in that：The light-emitting window center is located at first half ball and later half
On ball center's line.
3. cocoon type integrating sphere according to claim 1 or 2, it is characterised in that：The light inlet has multiple, and is uniformly distributed
On the middle circle shell of column or intermediate round platform section.
4. cocoon type integrating sphere according to claim 3, it is characterised in that：The light inlet respectively close to preceding hemisphere and/
Or later half sphere is uniformly distributed.
5. cocoon type integrating sphere according to claim 4, it is characterised in that：The light inlet has multiple, is divided into two groups, one group
It is distributed in along same even circumferential on the middle circle shell of column or the intermediate round platform section wherein side wall of one end, another group along same
Even circumferential is distributed on the side wall of the middle circle shell of column or the intermediate round platform section other end.
6. cocoon type integrating sphere according to claim 3, it is characterised in that：The light source at least there are two types of, variety classes light
Source is staggered.
7. cocoon type integrating sphere according to claim 3, it is characterised in that：Further include control system and for cooling down to light source
Fan；The control system includes light source control module, luminance adjustment module, fan control module；Light source control module is used
In a bright light source；Luminance adjustment module is used to adjust light-source brightness；Fan control module is for control to light source cooling fan
It opens and closes.
8. integrating sphere parallel light tube, including collimating mirror, integrating sphere, Target Board card slot and the light trapping set gradually；Its feature exists
In：The integrating sphere is any cocoon type integrating spheres of claim 1-7.
9. integrating sphere parallel light tube according to claim 8, it is characterised in that：The collimating mirror is located at the light extraction of integrating sphere
At mouthful, and the focus of collimating mirror is located at the center of Target Board card slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472941.0U CN207423360U (en) | 2017-11-07 | 2017-11-07 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472941.0U CN207423360U (en) | 2017-11-07 | 2017-11-07 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423360U true CN207423360U (en) | 2018-05-29 |
Family
ID=62307803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721472941.0U Withdrawn - After Issue CN207423360U (en) | 2017-11-07 | 2017-11-07 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
Country Status (1)
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| CN (1) | CN207423360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817048A (en) * | 2017-11-07 | 2018-03-20 | 中国科学院西安光学精密机械研究所 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
-
2017
- 2017-11-07 CN CN201721472941.0U patent/CN207423360U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817048A (en) * | 2017-11-07 | 2018-03-20 | 中国科学院西安光学精密机械研究所 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
| CN107817048B (en) * | 2017-11-07 | 2023-09-29 | 中国科学院西安光学精密机械研究所 | Cocoon type integrating sphere and collimator based on integrating sphere |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180529 Effective date of abandoning: 20230929 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180529 Effective date of abandoning: 20230929 |