CN109633886A - A kind of telescope optical system - Google Patents
A kind of telescope optical system Download PDFInfo
- Publication number
- CN109633886A CN109633886A CN201910036518.3A CN201910036518A CN109633886A CN 109633886 A CN109633886 A CN 109633886A CN 201910036518 A CN201910036518 A CN 201910036518A CN 109633886 A CN109633886 A CN 109633886A
- Authority
- CN
- China
- Prior art keywords
- image rotation
- eyepiece
- optical system
- prism
- rotation prism
- 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
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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
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
The invention discloses a kind of telescope optical systems, belong to optical field, the system successively includes object lens by object space to image space, graticle, first image rotation prism, second image rotation prism and eyepiece group, the position of second image rotation prism is higher than the first image rotation prism, the graticle is located at the imaging surface of objective lens, the eyepiece group includes eyepiece and eyepiece the third lens, the eyepiece and eyepiece the third lens are mutually glued, first image rotation prism and the second image rotation prism are Porro prism, it is microcephaly that one end of the bottom surface of first image rotation prism and the second image rotation prism, which is the major part other end,.
Description
Technical field
The present invention relates to optical technical fields, and in particular to a kind of telescope optical system.
Background technique
Telescopic system is a kind of optical system for observing distant object, and corresponding visual instrument is known as telescope.
Due to being greater than object itself to the right angle subtended angle of eyes to the subtended angles of eyes by telescope optical system imaging, using looking in the distance
Mirror can be clearly seen that the details of object, expand the ability of the remote object of eye-observation.Telescope optical system is extensive
Applied to national product sphere of life and military field.
Same field of view telescope, the bigger bore of multiple are bigger.It, just must be corresponding in order to guarantee the amplification factor of telescope
Raising object lens bore, to guarantee that imaging has enough brightness, the imaging human eye of brightness does not see Chu, such one
Come, the volume weight and price of telescope all can be increased sharply.
Summary of the invention
To solve the above-mentioned problems in the prior art, the present invention provides a kind of small in size, light of looking in the distance of light weight
System.
Technical scheme is as follows: a kind of telescope optical system, which successively includes object lens by object space to image space
Group, the first image rotation prism, the second image rotation prism, graticle and eyepiece group, second image rotation prism are higher than the first image rotation prism,
The graticle is located at the imaging surface of objective lens.
The eyepiece group includes eyepiece and eyepiece the third lens, and the eyepiece and eyepiece the third lens are mutually glued.
First image rotation prism and the second image rotation prism are Porro prism.
It is microcephaly that one end of the bottom surface of first image rotation prism and the second image rotation prism, which is the major part other end,.
Spacing between objective lens is greater than the spacing between eyepiece group.
The field angle of the system is no more than 10 °.
The effective focal length of the objective lens is -114.6mm, and total optical path length is 210mm.
The Entry pupil diameters of the system are 31.5mm, and emergent pupil is away from for 15.86mm.
The full filed ω of the system is ± 7.5 °, the x of magnifying power г=6.
The invention has the following advantages that
1. can be used in 0.486 μm of 0.656 μm of < λ < of visible light wave range；
2. full filed ω=± 7.5 °, magnifying power г=6x, Entry pupil diameters D0=31.5mm, emergent pupil can enter away from 15.86mm full of human eye
The picture of pupil；
3. system bulk is small light-weight, handy to carry about.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the main view of image rotation prism in the present invention；
Fig. 4 is the left view of image rotation prism in the present invention；
Fig. 5 is the rearview of image rotation prism in the present invention；
In figure: 1- objective lens, the first image rotation prism of 2-, the second image rotation prism of 3-, 4- graticle, 5- eyepiece, 6- eyepiece third are saturating
Mirror.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described:
As shown in Figs. 1-2, a kind of telescope optical system, the system successively include objective lens 1, the second image rotation rib by object space to image space
Mirror 2, the first image rotation prism 3, graticle 4 and eyepiece group, second image rotation prism 3 are higher than the first image rotation prism 2, the graduation
Plate 4 is located at the imaging surface of objective lens 1, and positioning and ranging can be carried out to target；The effective focal length of the objective lens be-
114.6mm, total optical path length are 210mm；The eyepiece group includes eyepiece 5 and eyepiece the third lens 6, the eyepiece 5 and eyepiece
The third lens 6 are mutually glued, in this way by the way of the double gluings of positive negative lens, form an aplanasia system, can also eliminate intelligent
Difference and chromatism of position；Since cemented doublet cannot correct astigmatism and the curvature of field, so field angle is usually no more than 10 °；Full filed
ω=± 7.5 °, magnifying power г=6x, Entry pupil diameters D0=31.5mm, emergent pupil can be full of the picture of human eye entrance pupil away from 15.86mm.
Visible-range image object is located at infinite point, and the parallel wave issued by image object is by objective lens 1 at
Vertical real image is near objective lens focal plane, and light passes sequentially through the second image rotation prism 3 and the first image rotation prism 2 in this process
Inverted image is switched to entire length that is upright, and reducing system to a certain extent, the picture after steering forms upright put through eyepiece
At the big virtual image and the human eye distance of distinct vision, eventually by eye-observation to image object.
The basic parameter of this telescope optical system:
As in Figure 3-5, first image rotation prism 2 and the second image rotation prism 3 are Porro prism, use the bitubular of Porro prism
Mirror is wider, and the spacing of objective lens is greater than the spacing of eyepiece group, and in this way when observing near objects, three-dimensional sense is strong；Porro prism is easy
It is more cheaper than the roof prism of comparable optical quality in manufacture.The bottom surface of first image rotation prism 2 and the second image rotation prism 3
It is designed using concentric reducer, when processing can save material, reduce the exchange weight of telescope, be more conducive to carry.
The present invention, by system optimization, has used novel image rotation prism, greatly on the basis of guaranteeing system optics performance
Big has compressed system light path, reduces the volume of telescope, while also mitigating the weight of telescope, realizes telescope
Miniaturization, light-weight design.
Claims (9)
1. a kind of telescope optical system, it is characterised in that: the system successively includes objective lens (1) by object space to image space, and first turn
As prism (2), the second image rotation prism (3), graticle (4) and eyepiece group, second image rotation prism (3) is higher than the first image rotation rib
Mirror (2), the graticle (4) are located at the imaging surface of objective lens (1).
2. a kind of telescope optical system as described in claim 1, it is characterised in that: the eyepiece group includes eyepiece (5) and mesh
Mirror the third lens (6), the eyepiece (5) and eyepiece the third lens (6) are mutually glued.
3. a kind of telescope optical system as described in claim 1, it is characterised in that: first image rotation prism (2) and second
Image rotation prism (3) is Porro prism.
4. a kind of telescope optical system as claimed in claim 3, it is characterised in that: first image rotation prism (2) and second
It is microcephaly that one end of the bottom surface of image rotation prism (3), which is the major part other end,.
5. a kind of telescope optical system as described in claim 1, it is characterised in that: the spacing between objective lens is greater than eyepiece group
Between spacing.
6. a kind of telescope optical system as described in claim 1, it is characterised in that: the field angle of the system is no more than 10 °.
7. a kind of telescope optical system as described in claim 1, it is characterised in that: the effective focal length of the objective lens (1) is-
114.6mm, total optical path length are 210mm.
8. a kind of telescope optical system as described in claim 1, it is characterised in that: the Entry pupil diameters of the system are 31.5mm,
Emergent pupil is away from for 15.86mm.
9. a kind of telescope optical system as described in claim 1, it is characterised in that: the full filed ω of the system is ± 7.5 °,
The x of magnifying power г=6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036518.3A CN109633886A (en) | 2019-01-15 | 2019-01-15 | A kind of telescope optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036518.3A CN109633886A (en) | 2019-01-15 | 2019-01-15 | A kind of telescope optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109633886A true CN109633886A (en) | 2019-04-16 |
Family
ID=66061964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910036518.3A Pending CN109633886A (en) | 2019-01-15 | 2019-01-15 | A kind of telescope optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109633886A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727098A (en) * | 2019-10-10 | 2020-01-24 | 北京航空航天大学 | Self-adaptive zoom telescope |
| CN114152145A (en) * | 2021-12-21 | 2022-03-08 | 湖南华南光电(集团)有限责任公司 | Compact wide-field white light sighting telescope optical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201796184U (en) * | 2010-05-11 | 2011-04-13 | 昆明远达光学有限公司 | Telescope and lens set with additional focal-length adjusting lens |
| CN102103262A (en) * | 2011-02-18 | 2011-06-22 | 福鼎市一雄光学仪器有限公司 | Video display ocular lens |
| CN102520510A (en) * | 2011-12-23 | 2012-06-27 | 长春威视追光科技有限责任公司 | Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus |
| CN104834083A (en) * | 2015-05-26 | 2015-08-12 | 哈尔滨工业大学 | Small-distortion handheld binocular telescope |
-
2019
- 2019-01-15 CN CN201910036518.3A patent/CN109633886A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201796184U (en) * | 2010-05-11 | 2011-04-13 | 昆明远达光学有限公司 | Telescope and lens set with additional focal-length adjusting lens |
| CN102103262A (en) * | 2011-02-18 | 2011-06-22 | 福鼎市一雄光学仪器有限公司 | Video display ocular lens |
| CN102520510A (en) * | 2011-12-23 | 2012-06-27 | 长春威视追光科技有限责任公司 | Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus |
| CN104834083A (en) * | 2015-05-26 | 2015-08-12 | 哈尔滨工业大学 | Small-distortion handheld binocular telescope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727098A (en) * | 2019-10-10 | 2020-01-24 | 北京航空航天大学 | Self-adaptive zoom telescope |
| CN110727098B (en) * | 2019-10-10 | 2021-10-22 | 北京航空航天大学 | Self-adaptive zoom telescope |
| CN114152145A (en) * | 2021-12-21 | 2022-03-08 | 湖南华南光电(集团)有限责任公司 | Compact wide-field white light sighting telescope optical system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |