CN107976798A - The high definition telescope of aberration can be reduced - Google Patents
The high definition telescope of aberration can be reduced Download PDFInfo
- Publication number
- CN107976798A CN107976798A CN201610915799.6A CN201610915799A CN107976798A CN 107976798 A CN107976798 A CN 107976798A CN 201610915799 A CN201610915799 A CN 201610915799A CN 107976798 A CN107976798 A CN 107976798A
- Authority
- CN
- China
- Prior art keywords
- sub
- eyeglass
- aberration
- wavelength
- high definition
- 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
- G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
-
- 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
Abstract
The invention discloses a kind of high definition telescope for reducing aberration, including housing and the eyepiece being arranged in housing, focusing prism, object lens, the object lens include first surface and second surface, the at least first surface or second surface of the eyeglass are equipped with sub-wavelength grating, and the cycle of the sub-wavelength grating is less than the wavelength of visible ray.Beneficial effects of the present invention are that, by being equipped with sub-wavelength grating on the surface of eyeglass, can reduce Fresnel reflection losses, improve and reduce the transverse axis rubber difference and longitudinal axis aberration of eyeglass, effectively increase image lenses performance.
Description
Technical field
The present invention relates to telescope technical field, more particularly to a kind of high definition telescope for reducing aberration.
Background technology
Telescope is a kind of optical instrument that remote object is observed using lens or speculum and other optics.Profit
It is reflected by the concave mirror with the light refraction by lens or light and feeds them into aperture and be converged to picture, then by a magnification eyepiece
And it is seen.
For conventional lenses when light passes through, eyeglass index path refers to Fig. 1, because air is different from lens index, therefore
When light by when can cause Fresnel reflection losses, make luminance reduction, so that optical resolution is reduced, in addition, having in visible ray more
The light of kind wavelength, so, when visible ray passes through eyeglass, the light of different wave length cannot be focused to a bit, and cause transverse axis
Aberration and longitudinal axis aberration.
In consideration of it, the present invention provides a kind of high definition telescope for reducing aberration.
The content of the invention
It is an object of the invention to provide a kind of high definition telescope for reducing aberration, to solve technology present in above-mentioned technology
Problem.
To achieve the object of the present invention, the present invention provides a kind of high definition telescope for reducing aberration, including housing with
And eyepiece, focusing prism, object lens in housing are arranged at, the object lens include first surface and second surface, the eyeglass
At least first surface or second surface are equipped with sub-wavelength grating, and the cycle of the sub-wavelength grating is less than the wavelength of visible ray.
Compared with prior art, beneficial effects of the present invention are that, by being equipped with sub-wavelength grating on the surface of eyeglass, can subtract
Few Fresnel reflection losses, improve and reduce the transverse axis rubber difference and longitudinal axis aberration of eyeglass, effectively increase image lenses performance.
Brief description of the drawings
Fig. 1 is the first schematic diagram of structure of the present invention；
Fig. 2 is the second schematic diagram of structure of the present invention；
In figure, 1- eyepieces, 2- focusing prisms, 3- housings, 4- object lens, 5- sub-wavelength gratings, 6- first surfaces, the second tables of 7-
Face.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
It should be noted that " connection " described herein and the word for expressing " connection ", such as " being connected ",
" connected " etc., was both directly connected to including a certain component and another component, also passed through miscellaneous part and another portion including a certain component
Part is connected.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in the present specification using belong to "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, component or module, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For the ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a component shown in the figure or module or feature and other
The spatial relation of component or module or feature.It should be appreciated that spatially relative term be intended to include except component or
Different azimuth in use or operation outside orientation of person's module described in figure.If for example, component in attached drawing
Perhaps module is squeezed, be described as " above miscellaneous part either module or construction " or " in miscellaneous part or module or
On construction " component will either be positioned as " below miscellaneous part or module or construction " after module or " at other
Under component or module or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The component or module can also the positioning of other different modes (be rotated by 90 ° or in other
Orientation), and respective explanations are made to the opposite description in space used herein above.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.
As shown in Figure 1 and Figure 2, the present invention provides a kind of high definition telescope for reducing aberration, including housing and setting
In the eyepiece in housing, focusing prism, object lens, the object lens include first surface and second surface, and at least the of the eyeglass
One surface or second surface are equipped with sub-wavelength grating, and the cycle of the sub-wavelength grating is less than the wavelength of visible ray.
Compared with prior art, beneficial effects of the present invention are that, by being equipped with sub-wavelength grating on the surface of eyeglass, can subtract
Few Fresnel reflection losses, improve and reduce the transverse axis rubber difference and longitudinal axis aberration of eyeglass, effectively increase image lenses performance.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of high definition telescope for reducing aberration, it is characterised in that including housing and the eyepiece being arranged in housing, adjust
Burnt prism, object lens, the object lens include first surface and second surface, at least first surface or second surface of the eyeglass
Equipped with sub-wavelength grating, the cycle of the sub-wavelength grating is less than the wavelength of visible ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915799.6A CN107976798A (en) | 2016-10-21 | 2016-10-21 | The high definition telescope of aberration can be reduced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915799.6A CN107976798A (en) | 2016-10-21 | 2016-10-21 | The high definition telescope of aberration can be reduced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107976798A true CN107976798A (en) | 2018-05-01 |
Family
ID=62004366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915799.6A Pending CN107976798A (en) | 2016-10-21 | 2016-10-21 | The high definition telescope of aberration can be reduced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107976798A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290062Y (en) * | 1996-04-25 | 1998-09-02 | 陈军 | Head binocular |
| CN1782743A (en) * | 2004-12-04 | 2006-06-07 | 鸿富锦精密工业（深圳）有限公司 | Lens |
| CN1996083A (en) * | 2006-01-05 | 2007-07-11 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
-
2016
- 2016-10-21 CN CN201610915799.6A patent/CN107976798A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290062Y (en) * | 1996-04-25 | 1998-09-02 | 陈军 | Head binocular |
| CN1782743A (en) * | 2004-12-04 | 2006-06-07 | 鸿富锦精密工业（深圳）有限公司 | Lens |
| CN1996083A (en) * | 2006-01-05 | 2007-07-11 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |