CN108051911A - A kind of telescope optical system - Google Patents
A kind of telescope optical system Download PDFInfo
- Publication number
- CN108051911A CN108051911A CN201810029550.4A CN201810029550A CN108051911A CN 108051911 A CN108051911 A CN 108051911A CN 201810029550 A CN201810029550 A CN 201810029550A CN 108051911 A CN108051911 A CN 108051911A
- Authority
- CN
- China
- Prior art keywords
- lens
- reflective mirror
- microscope group
- optical system
- main reflective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
Abstract
The present invention relates to a kind of telescope optical systems, it includes setting gradually front end microscope group, middle-end microscope group and end microscope group from object plane to image planes, is arranged at intervals between front end microscope group, middle-end microscope group, end microscope group；Advantage is that design is reasonable, simple in structure, improves main reflective mirror structure, the center drilling area of main reflective mirror accounts for the main reflective mirror gross area 10.8%, can greatly collect more light so that imaging is more bright；Using the 3rd lens, the 4th lens correction coma and spherical aberration caused by main reflective mirror, the light path of secondary mirror reflection light, make the aberration of imaging and spherical aberration smaller, and without coma；It has additional and subtracts burnt microscope group, F/D is down to 10 so that be imaged brighter, more high definition, shorten the time for exposure of camera, improve rate in blocks, and effectively increase system visual field, the region of imaging is extensive.
Description
Technical field
The present invention relates to telescope fields, and in particular to a kind of telescope optical system.
Background technology
The ratio of the focal length F and objective lens diameter D of other telescopic systems currently on the market, substantially all in F/D=12,
F/D=15。
Similar telescopic system currently on the market, the center drilling area of main reflective mirror account for the main reflective mirror gross area
Mostly more than 15%-20%, it is imaged partially dark.
Currently on the market in similar telescopic system, the aberration and spherical aberration of imaging are big, and there are comas.
The content of the invention
To solve the above problems, the present invention proposes a kind of telescope optical system, design is reasonable, simple in structure, improves
Main reflective mirror structure, the center drilling area of main reflective mirror account for the main reflective mirror gross area 10.8%, can greatly collect more
Light so that imaging is more bright；Utilize the 3rd lens, the 4th lens correction main reflective mirror, secondary mirror reflection light
Light path caused by coma and spherical aberration, make the aberration of imaging and spherical aberration smaller, and without coma；It has additional and subtracts burnt microscope group, imaging
Brighter, more high definition shortens the time for exposure of camera, improves rate in blocks, and effectively increases system visual field, the area of imaging
Domain is extensive.
Technical solution of the present invention：
A kind of telescope optical system, it includes setting gradually front end microscope group, middle-end microscope group and end from object plane to image planes
Microscope group is arranged at intervals between front end microscope group, middle-end microscope group, end microscope group.
The front end microscope group includes time reflective mirror and the first lens, and secondary reflective mirror is convex surface reflective mirror, and the first lens are
Concave-convex lens, secondary reflective mirror is together with the first lens combination, and secondary reflective mirror is located at front side, and the first lens are located at last side, secondary reflective
Mirror reflecting surface is contacted with the first convex lens surface.
The middle-end microscope group includes main reflective mirror, and main reflective mirror is concave mirror, and is provided among main reflective mirror
Center drilling；
The end microscope group includes the 3rd lens and the 4th lens, and the 3rd lens and the 4th lens are concave-convex lens, and the 3rd thoroughly
Together, the 3rd concave lens surface is contacted with the 4th concave lens surface for mirror and the 4th lens combination.
The secondary reflective mirror, the first lens, main reflective mirror, the 3rd lens and the 4th lens centre are in same axial line
On, and main reflective mirror reflecting surface is located at the first lens one side.
It is provided with the second lens between first lens and main reflective mirror, the second lens are concave-convex lens, the second lens
Convex surface is located at object plane one side；Second lens can eliminate the aberration that the eyeglass of front several generates, and be that imaging becomes apparent from, mellow and full,
Preferable corrective action is also functioned to aberration simultaneously, is that visual target or camera generate less aberration and dispersion when shooting.
The optical system, which further includes, subtracts burnt microscope group, subtracts burnt microscope group and is located at end microscope group end side, subtracts burnt microscope group and end mirror
It is arranged at intervals between group, subtracting burnt microscope group includes the 7th lens, and the 7th lens are concave-convex lens, and the 7th convex lens surface is located at object plane one
Side；Subtract burnt purpose using the realization of the 7th lens, visual field during imaging is made more to become clear.
The 5th lens, the 6th lens are disposed among 4th lens and the 7th lens, the 5th lens are bumps
Lens, the 6th lens are planoconvex spotlight, the 5th lens, the 6th lens combination together, the 5th concave lens surface and the 6th lens plane
Contact；It is consistent using the picture among the 5th lens, the picture of the 6th lenses guarantee visual field inward flange and visual field, reaches flat field effect
Fruit
Second lens use FK5 materials, and refractive index is smaller, penetrate higher, this design of arranging in pairs or groups, can be more excellent to imaging effect
It is elegant.
3rd lens, the 4th lens have higher De-dispersion and high-penetration using S-BSM18 FK5 materials
Performance.
The maximum effective diameter of the main reflective mirror is 300mm, and the center drilling area of main reflective mirror accounts for main reflective mirror
The 10.8% of the gross area, can greatly collect more light, and imaging is more bright.
The optical system is suitable for catadioptric telescope.
Ratio F/D=10 of the optical system focal length F and objective lens diameter D.
The method have the advantages that design is reasonable, and it is simple in structure, improve main reflective mirror structure, the center drilling face of main reflective mirror
Product accounts for the main reflective mirror gross area 10.8%, can greatly collect more light so that imaging is more bright；Utilize the 3rd
Lens, the 4th lens correction coma and spherical aberration caused by main reflective mirror, the light path of secondary mirror reflection light make the color of imaging
Difference and spherical aberration smaller, and without coma；It has additional and subtracts burnt microscope group, F/D is down to 10 so that be imaged brighter, more high definition, shorten
The time for exposure of camera improves rate in blocks, and effectively increases system visual field, and the region of imaging is extensive.
Description of the drawings
Fig. 1 is schematic structural view of the invention（1）.
Fig. 2 is schematic structural view of the invention（2）.
Fig. 3 is main reflective mirror half-section diagram of the present invention.
Fig. 4 is microscope group half-section diagram in front end of the present invention.
Fig. 5 is microscope group half-section diagram in end of the present invention.
Fig. 6 is the 5th lens of the present invention, the 6th lens combination half-section diagram.
Fig. 7 is the 7th lens half-section diagram of the invention.
Fig. 8 is use principle figure of the present invention（1）.
Fig. 9 is use principle figure of the present invention（2）.
Specific embodiment
Referring to the drawings a kind of telescope optical systems of 1-9., it includes setting gradually front end microscope group from object plane to image planes
11st, middle-end microscope group 12 and end microscope group 13 are arranged at intervals between front end microscope group 11, middle-end microscope group 12, end microscope group 13.
The front end microscope group 11 includes time 01 and first lens 02 of reflective mirror, and secondary reflective mirror 01 is convex surface reflective mirror, the
One lens 02 are concave-convex lens, and together with secondary reflective mirror 01 is combined with the first lens 02, secondary reflective mirror 01 is located at front side, the first lens
02 is located at last side, and secondary mirror reflection face is contacted with the first convex lens surface.
The middle-end microscope group 12 includes main reflective mirror 04, and main reflective mirror 04 is concave mirror, and in main reflective mirror 04
Between be provided with center drilling 10.
The end microscope group 13 includes the 3rd lens 05 and the 4th lens 06, and the 3rd lens 05 and the 4th lens 06 are recessed
Convex lens, the 3rd lens 05 and the 4th lens 06 combine together, and 05 concave surface of the 3rd lens is contacted with 06 concave surface of the 4th lens；
The secondary reflective mirror 01, the first lens 02, main reflective mirror 04, the 3rd lens 05 and 06 center of the 4th lens are in same axis
On heart line, and 04 reflecting surface of main reflective mirror is located at 02 one side of the first lens.
The second lens 03 are provided between first lens 02 and main reflective mirror 04, the second lens 03 are concave-convex lens,
Second lens, 03 convex surface is located at object plane one side；Second lens 03 can eliminate the aberration that the eyeglass of front several generates, and be to be imaged more
It is clear to add, mellow and full, while preferable corrective action is also functioned to aberration, is that visual target or camera generate less when shooting
Aberration and dispersion.
The optical system, which further includes, subtracts burnt microscope group 14, subtracts burnt microscope group 14 and is located at the last side of end microscope group 13, subtracts burnt microscope group 14
It is arranged at intervals between end microscope group 13, subtracting burnt microscope group 14 includes the 7th lens 09, and the 7th lens 09 are concave-convex lens, and the 7th thoroughly
09 convex surface of mirror is located at object plane one side；Subtract burnt purpose using the realization of the 7th lens 09, visual field during imaging is made more to become clear.
The 5th lens 07, the 6th lens 08 are disposed among 4th lens 06 and the 7th lens 09, the 5th thoroughly
Mirror 07 is concave-convex lens, and the 6th lens 08 are planoconvex spotlight, and the 5th lens 07, the 6th lens 08 combine together, the 5th lens 07
Concave surface and 08 plane contact of the 6th lens；Ensured using the 5th lens 07, the 6th lens 08 in the picture and visual field of visual field inward flange
Between picture be consistent, reach flat field effect
Second lens 03 use FK5 materials, and refractive index is smaller, penetrate higher, this design of arranging in pairs or groups, can be more to imaging effect
It is outstanding.
3rd lens 05, the 4th lens 06 use S-BSM18 FK5 materials, have higher De-dispersion and height
The performance penetrated.
The maximum effective diameter of the main reflective mirror 04 is 300mm, and it is reflective that the center drilling area of main reflective mirror 04 accounts for master
The 10.8% of the gross area of mirror, can greatly collect more light, and imaging is more bright.
The optical system is suitable for catadioptric telescope.
Ratio F/D=10 of the optical system focal length F and objective lens diameter D.
Embodiment：
The design parameter of optical system is referring to table 1
。
Table 1
System focal length is 2025mm, and the visual field of system reaches 60mm, and imaging region is 44mm, and limit grade reaches 14.4 grades,
Power limit=600X, resolution ratio are reached for 0.46 rad, back focal length 123.9mm.
The present invention is in use, light irradiation 04 reflecting surface of main reflective mirror of object reflection, after 04 reflection light of main reflective mirror,
Light is irradiated to through the first lens 02 on time reflective mirror 01, and secondary reflective mirror 01, which reflects light back into, to be come, through 03 folding of the second lens
Through 04 intermediate perforate 10 of main reflective mirror after penetrating, then sequentially pass through the 3rd lens 05, the 4th lens 06, the 5th lens the 07, the 6th
Lens 08, the 7th lens 09, and be finally imaged in camera or human eye.
The method have the advantages that design is reasonable, and it is simple in structure, 04 structure of main reflective mirror is improved, the center of main reflective mirror 04 is opened
Hole area accounts for the main reflective mirror gross area 10.8%, can greatly collect more light so that imaging is more bright；It utilizes
3rd lens 05, the 4th lens 06 have corrected coma and ball caused by main reflective mirror 04, the light path of 02 reflection light of secondary reflective mirror
Difference makes the aberration of imaging and spherical aberration smaller, and without coma；Have additional and subtract burnt microscope group, F/D is down to 10 so that imaging it is brighter,
More high definition shortens the time for exposure of camera, improves rate in blocks, and effectively increases system visual field, and the region of imaging is extensive.
Claims (10)
1. a kind of telescope optical system, which is characterized in that it includes setting gradually front end microscope group, middle-end from object plane to image planes
Microscope group and end microscope group are arranged at intervals between front end microscope group, middle-end microscope group, end microscope group；
The front end microscope group includes time reflective mirror and the first lens, and secondary reflective mirror is convex surface reflective mirror, and the first lens are bumps
Lens, for secondary reflective mirror together with the first lens combination, secondary reflective mirror is located at front side, first, lens be located at last side, secondary reflective mirror is anti-
Face is penetrated to contact with the first convex lens surface；
The middle-end microscope group includes main reflective mirror, and main reflective mirror is concave mirror, and center is provided among main reflective mirror
Perforate；
The end microscope group includes the 3rd lens and the 4th lens, and the 3rd lens and the 4th lens are concave-convex lens, and the 3rd thoroughly
Together, the 3rd concave lens surface is contacted with the 4th concave lens surface for mirror and the 4th lens combination；
The secondary reflective mirror, the first lens, main reflective mirror, the 3rd lens and the 4th lens centre on same axial line, and
Main reflective mirror reflecting surface is located at the first lens one side.
2. a kind of telescope optical system according to claim 1, the first lens described in feature and main reflective mirror it
Between be provided with the second lens, the second lens are concave-convex lens, and the second convex lens surface is located at object plane one side.
3. a kind of telescope optical system according to claim 1, optical system described in feature, which further includes, subtracts burnt mirror
Group subtracts burnt microscope group and is located at end microscope group end side, subtracts and be arranged at intervals between burnt microscope group and end microscope group, and subtracting burnt microscope group includes the 7th thoroughly
Mirror, the 7th lens are concave-convex lens, and the 7th convex lens surface is located at object plane one side.
4. a kind of telescope optical system according to claim 3, in the 4th lens and the 7th lens described in feature
Between be disposed with the 5th lens, the 6th lens, the 5th lens are concave-convex lens, and the 6th lens are planoconvex spotlight, the 5th lens,
Together, the 5th concave lens surface contacts 6th lens combination with the 6th lens plane.
5. a kind of telescope optical system according to claim 2,3,4, second lens, the 7th lens, the 5th,
6th lens centre is with time reflective mirror, the first lens, main reflective mirror, the 3rd lens and the 4th lens centre in same axial line
On.
6. a kind of telescope optical system according to claim 5, the second lens described in feature use FK5 materials.
7. a kind of telescope optical system according to claim 5, the 3rd lens, the 4th lens use described in feature
S-BSM18 FK5 materials.
8. a kind of telescope optical system according to claim 2, the maximum of main reflective mirror described in feature is effectively straight
Footpath is 300mm, and the center drilling area of main reflective mirror accounts for the 10.8% of the gross area of main reflective mirror.
9. a kind of telescope optical system according to claim 3, optical system described in feature is suitable for catadioptric
Formula telescope.
10. a kind of telescope optical system according to claim 3, optical system focal length F and object lens described in feature
Ratio F/D=10 of diameter D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029550.4A CN108051911A (en) | 2018-01-12 | 2018-01-12 | A kind of telescope optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029550.4A CN108051911A (en) | 2018-01-12 | 2018-01-12 | A kind of telescope optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108051911A true CN108051911A (en) | 2018-05-18 |
Family
ID=62127358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029550.4A Pending CN108051911A (en) | 2018-01-12 | 2018-01-12 | A kind of telescope optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108051911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957725A (en) * | 2018-07-25 | 2018-12-07 | 中国科学院国家天文台南京天文光学技术研究所 | Improved Schmidt telescopic optical system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1497574A1 (en) * | 1965-05-26 | 1969-08-21 | Silvertooth Ernest W | Imaging optical system |
| US4209232A (en) * | 1979-02-26 | 1980-06-24 | Chernin Semen M | Multiple reflection optical system |
| EP1231497A2 (en) * | 2001-02-07 | 2002-08-14 | Dubuisson, Jean-Sébastien | Astronomical telescope |
| US20050225881A1 (en) * | 2004-03-31 | 2005-10-13 | Vizgaitis Jay N | Dual mode mirror imaging system |
| US7236297B1 (en) * | 2005-09-15 | 2007-06-26 | Sandia Corporation | Gregorian optical system with non-linear optical technology for protection against intense optical transients |
| CN101369053A (en) * | 2008-10-08 | 2009-02-18 | 上海微电子装备有限公司 | Complete refraction type projection optical system |
| CN101592779A (en) * | 2009-07-06 | 2009-12-02 | 中国科学院安徽光学精密机械研究所 | Infrared radiation light source system |
| CN101762873A (en) * | 2010-01-15 | 2010-06-30 | 浙江大学 | Cassegrain for enhancing stray light-extinction effect and improved-type imaging system thereof |
| CN104965299A (en) * | 2015-07-08 | 2015-10-07 | 山东神戎电子股份有限公司 | Large-aperture long-focal length reentry type uncooled infrared imaging system |
| CN105259648A (en) * | 2015-10-26 | 2016-01-20 | 合肥斐索光电仪器有限公司 | Large-caliber fully-spherical laser radar optical system |
| CN106646847A (en) * | 2017-01-18 | 2017-05-10 | 南通斯密特森光电科技有限公司 | Astronomical telescope for high-precision novel optical system |
-
2018
- 2018-01-12 CN CN201810029550.4A patent/CN108051911A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1497574A1 (en) * | 1965-05-26 | 1969-08-21 | Silvertooth Ernest W | Imaging optical system |
| US4209232A (en) * | 1979-02-26 | 1980-06-24 | Chernin Semen M | Multiple reflection optical system |
| EP1231497A2 (en) * | 2001-02-07 | 2002-08-14 | Dubuisson, Jean-Sébastien | Astronomical telescope |
| US20050225881A1 (en) * | 2004-03-31 | 2005-10-13 | Vizgaitis Jay N | Dual mode mirror imaging system |
| US7236297B1 (en) * | 2005-09-15 | 2007-06-26 | Sandia Corporation | Gregorian optical system with non-linear optical technology for protection against intense optical transients |
| CN101369053A (en) * | 2008-10-08 | 2009-02-18 | 上海微电子装备有限公司 | Complete refraction type projection optical system |
| CN101592779A (en) * | 2009-07-06 | 2009-12-02 | 中国科学院安徽光学精密机械研究所 | Infrared radiation light source system |
| CN101762873A (en) * | 2010-01-15 | 2010-06-30 | 浙江大学 | Cassegrain for enhancing stray light-extinction effect and improved-type imaging system thereof |
| CN104965299A (en) * | 2015-07-08 | 2015-10-07 | 山东神戎电子股份有限公司 | Large-aperture long-focal length reentry type uncooled infrared imaging system |
| CN105259648A (en) * | 2015-10-26 | 2016-01-20 | 合肥斐索光电仪器有限公司 | Large-caliber fully-spherical laser radar optical system |
| CN106646847A (en) * | 2017-01-18 | 2017-05-10 | 南通斯密特森光电科技有限公司 | Astronomical telescope for high-precision novel optical system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957725A (en) * | 2018-07-25 | 2018-12-07 | 中国科学院国家天文台南京天文光学技术研究所 | Improved Schmidt telescopic optical system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4124798A (en) | Optical viewing apparatus | |
| CN108519660A (en) | Bugeye lens | |
| CN108388004B (en) | A kind of starlight grade high definition day and night confocal optics camera lens | |
| CN104793321B (en) | Ultra-large vision field fish eye lens | |
| CN204044421U (en) | A kind of focal length type Panoramic annular imaging camera lens | |
| CN106094171B (en) | A kind of fish eye lens of ultra-large vision field and object lens of large relative aperture | |
| CN106918902A (en) | A kind of flat field telescopic optical system | |
| CN107692963A (en) | A kind of confocal scanning laser ophthalmoscope | |
| CN103969800A (en) | Long-focus type panoramic annular imaging lens | |
| CN102253491A (en) | Virtual image display light machine with unequal focal lengths and high magnification | |
| Franchini | Compromise between spherical and chromatic aberration and depth of focus in aspheric intraocular lenses | |
| CN108227152B (en) | Big field angle pin hole imaging optical system | |
| CN201060318Y (en) | Video amplification composite shot | |
| CN210294654U (en) | Large-aperture high-low temperature confocal optical device | |
| CN108051911A (en) | A kind of telescope optical system | |
| CN208026982U (en) | Big field angle pin hole imaging optical system | |
| CN109656007A (en) | Varifocal optical system and imaging device | |
| CN204405927U (en) | Ultrashort out-of-focus projection camera lens | |
| CN109116536A (en) | A kind of optical system of 15X industrial microscope | |
| CN109445065A (en) | A kind of 10 group of 13 chip lens construction for d-cinema projectors | |
| CN106125266B (en) | projection lens and projection imaging system | |
| CN108433698A (en) | One kind disappears ghost fundus camera lighting system | |
| CN108181702A (en) | A kind of 6mm small sizes, super large thang-kng, double light path optical system | |
| CN110471243A (en) | A kind of high brightness and resolution is big apart from automobile LOGO projection optical system | |
| CN208799204U (en) | A kind of novel ghost fundus camera lighting system that disappears |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Yufeng Inventor after: Shen Wenzhong Inventor after: Tian Ye Inventor before: Shen Dazhong |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |