CN106249382B - A kind of video is micro-, large visual field optical system of photographing - Google Patents
A kind of video is micro-, large visual field optical system of photographing Download PDFInfo
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- CN106249382B CN106249382B CN201610731665.9A CN201610731665A CN106249382B CN 106249382 B CN106249382 B CN 106249382B CN 201610731665 A CN201610731665 A CN 201610731665A CN 106249382 B CN106249382 B CN 106249382B
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- meniscus lens
- lens
- visual field
- optical system
- positive meniscus
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The present invention disclose a kind of video it is micro-, photography large visual field optical system, successively it is made of balsaming lens, positive meniscus lens, diverging meniscus lens, positive meniscus lens and eyepiece group, aperture diaphragm is provided between positive meniscus lens and diverging meniscus lens, micro-, the photography large visual field optical system, in photomicrography, the operating distance of the system is 8mm, and enlargement ratio is 65 times, object space linear field diameter 5.5mm, numerical aperture 0.25mm.In middle and long distance photography, the objective focal length of the system is 75.5mm, and eyepiece focal length is -11.65mm, and increment magnifying power is 6.5 times, and visual field is 15.5 °, the service band of objective system are as follows: 0.5 μm -0.75 μm.Different objects size can be clearly measured when the present invention is as microscope, when as phtographic lens, cell-phone camera can be met to take pictures requirement to the object of different distance, the big visual field phtographic lens, in remote photography, it can be full of the demand of different mobile phone screens, still picture contrast and clarity with higher.
Description
Technical field
The present invention relates to field of photoelectric technology, and in particular to, photography large visual field optical system micro- to a kind of video.
Background technique
The video researched and developed with optical technology is micro-, large visual field optical system of photographing, the performance of video camera system,
By " identification and the cognition " of broken " viewing " in the past pure to external scene till now, and videomicroscopy is with million grades of pixel height
The development of resolution ratio CCD or cmos image detector, and be used widely, videomicroscopy will observe object and be regarded by high-resolution
Vision signal is converted into numerical signal storage in a computer or will schemed by frequency microscope imaging on CCD or CMOS despot face
On a monitor as display, it or is directly displayed on Mobile phone screen, in conjunction with Survey Software, quantitative measurment can be carried out to observation object
Or directly observe, thus instead of human eye, to observe for a long time.Currently, mobile phone photograph is due to the function by mobile lens itself
It can limit, so that it is taken pictures to different distance object, under the conditions of different weather, be restricted, and videomicroscopy use is in hand
Machine is taken pictures or is observed, then is an approach of extended mobile phone functional area.Mobile video microscope compared with traditional microscope,
It is long with operating distance, high resolution, and mobile phone photographic then brings brand new cell phone camera lens to take pictures experience, and middle focal length is photographed, then
New spring is brought to mobile phone photograph.Currently, plug-in cell phone camera lens is all made of the optical glass lens of full aluminum shell and profession, add
" broadband coating technique " is added to make to be imaged more life-like, color is more gorgeous, the powerful imaging performance of mobile phone is played dripping most
It causes.Videomicroscopy and phtographic lens are two different instruments, not can serve as videomicroscopy use in the prior art,
The instrument used but also as phtographic lens.
Summary of the invention
Present invention aim to address the deficiency of above-mentioned technical problem, provide that a kind of video is micro-, the big visual field optics of photography
System.The video is micro-, photography large visual field optical system is selected biggish numerical aperture, realized in video photomicrography
Observer is to the observation of closer object and takes pictures, and service band λ is in 480nm -650nm, completely and cmos detector wave
Length matches, operating distance 8mm, and enlargement ratio is 65 times, object space linear field diameter 5.5mm, numerical aperture 0.25mm.
And be visible when dolly-out,ing dolly-back shadow, the focal length of the phtographic lens is 75.5mm, and eyepiece focal length is -11.65mm, and increment magnifying power is 6.5 times,
Visual field is 15.5 °, similar telescope, for full of different mobile phone screens, visual field is greater than 40% than similar telescope, it can be remote
The part " winning over " of scape, it is full frame full of mobile phone, distant place high-resolution high grade picture is more quickly captured, since his depth of field is suitable
In, it can blur background, it is outstanding and make us deep photographic work and often all have prominent shot subject and there is impact
The shooting visual angle of power.
The deficiency of the present invention to solve above-mentioned technical problem, the technical solution adopted by the present invention is that: a kind of video is micro-, takes the photograph
Shadow large visual field optical system, it is characterised in that: incident direction is respectively arranged with balsaming lens, first to the optical system from left to right
Positive meniscus lens, diverging meniscus lens, the second positive meniscus lens and eyepiece group, in first positive meniscus lens and diverging meniscus lens
Between be provided with aperture diaphragm, objective focal length 75.5mm, eyepiece focal length is -11.65mm, and increment magnifying power is 6.5 times, visual field
It is 15.5 °, the service band of objective system are as follows: 0.5 μm -0.75 μm, in photomicrography, the operating distance of optical system is
8mm, enlargement ratio are 65 times, object space linear field diameter 5.5mm, numerical aperture 0.25mm；Gluing unit and rear group phtographic lens
It is relatively-stationary structure.
Airspace between the balsaming lens and the first positive meniscus lens of the camera chain is 1.5mm, and first just
Airspace between meniscus lens and diverging meniscus lens is 1.9mm, the sky between diverging meniscus lens and the second positive meniscus lens
1.8mm is divided between gas, the airspace between the second positive meniscus lens and eyepiece is 33.06mm.
The balsaming lens is made of H-ZF1 and H-K9L optical material respectively, and the first positive meniscus lens is by H-LaK2 system
At diverging meniscus lens is made of H-ZF5, and the second positive meniscus lens is made of H-LaK2, and eyepiece group is respectively by H-ZF7LA and H-
LaK2 optical material is made.
By adopting the above technical scheme the utility model has the advantages that a kind of video of the invention it is micro-, photography large visual field optical system,
When on the one hand, as camera chain, cell-phone camera can be met and taken pictures requirement to the object of different distance, the big visual field optical system
System can be full of the demand of different mobile phone screens, still picture contrast and clarity with higher.On the other hand, photographic mirror
Head optical element Film Design uses ultra-wide frequency spectrum multi-angle antireflection plated film, it is beneficial to the elimination of its stray light and ghost,
The resolution ratio of camera lens will be greatly improved in this way, and improves camera lens contrast ability, it not only improves system photography scenery details energy
Power, and human eye can be visually seen scenery low contrast details on screen, and contrast is higher, and scene outline is bright and new, clear-cut margin,
Level is plentiful and substantial, and texture is strong, and tone is bright and clear.The third aspect, phtographic lens and microscopic system are one, but it is two classifications,
In photography, pulls out preceding group of balsaming lens and can be realized and take pictures to different distance, and short distance can be seen by loading onto balsaming lens
Examine analysis, structure is simple, small in size, light weight, mounting and adjusting are convenient, opposite commonness photograph camera lens and microscopic system, depending on
There are 30% or so surprising promotion in field, viewfinder range, take pictures distance, resolution capability, definition range, and micro- and middle focal length is widened
The writing space of mobile phone photographic.
Detailed description of the invention
Specific embodiments of the present invention are described in further detail with reference to the accompanying drawing.
Fig. 1 is that video of the present invention is micro-, large visual field optical system structural schematic diagram of photographing.
Fig. 2 is index path.
Fig. 3 is transmission function central vision.
Specific embodiment
To become apparent the contents of the present invention, once in conjunction with specific embodiments, the present invention will be described in detail.
As shown in Figure 1, 2: a kind of video is micro-, photography large visual field optical system, optical system incidence side from left to right
To being respectively arranged with balsaming lens 1, the first positive meniscus lens 2, diverging meniscus lens 4, the second positive meniscus lens 5 and eyepiece group 6,
Aperture diaphragm 3 is provided between one positive meniscus lens 2 and diverging meniscus lens 4.Micro-, the photography large visual field optical system, aobvious
When micro- photography, the operating distance of the system is 8mm, and enlargement ratio is 65 times, object space linear field diameter 5.5mm, and numerical aperture is
0.25mm.In photography, the objective focal length of the system is 75.5mm, and eyepiece focal length is -11.65mm, and increment magnifying power is 6.5
Times, visual field is 15.5 °, the service band of objective system are as follows: 0.5 μm -0.75 μm.The balsaming lens and the first positive meniscus lens
Between airspace be 1.5mm, airspace between the first positive meniscus lens and diverging meniscus lens is 1.9mm, negative bent moon
Airspace between lens and the second positive meniscus lens is 1.8mm, and the airspace between the second positive bent moon and eyepiece is
33.06mm。
In order to make the present invention have better implementation effect, the balsaming lens is respectively by H-ZF1 and H-K9L optics material
Material is made.First positive meniscus lens is made of H-LaK2, and diverging meniscus lens is made of H-ZF5, and the second positive meniscus lens is by H-
LaK2 is made, and eyepiece group is made of H-ZF7LA and H-LaK2 optical material respectively.
Different objects size can be clearly measured when the present invention is as microscope, when as camera chain, mobile phone can be met
Camera shooting takes pictures requirements to the object of different distance, the large visual field optical system, can still have full of the demand of different mobile phone screens
There are higher picture contrast and clarity.
Video is micro-, photographs big visual field camera lens during use, and since the purposes used is different, gluing unit is with after
Group phtographic lens be it is relatively-stationary, become clear to keep photography clear, the bore of phtographic lens greater than 40 millimeters, and high definition,
Bright big visual field phtographic lens miniaturization, light, small and exquisite, structure size is short, is the key that lens design, while setting drafting
It must take into account design cost and its purposes in meter scheme, need to just reasonably select optical material, this phtographic lens uses three groups
Meniscus lens, three groups of meniscus lens optical materials are H-LaK2+H-ZF5+H-LaK2 optical materials, then determine best focal power
Distribution, this is not only the needs of corrective lens aberration, and structure size is controlled, and plays a key effect, point of focal power
It is in fact also the reasonable arrangement problem of the undertaken drift angle of each constituent element with problem.If the drift angle distributed to some constituent element has exceeded it
Afforded range, to influence whole system, close the aberration of system can not then a large amount of senior aberration will be generated
Weighing apparatus is patted, cannot get ideal image quality.
To realize that video is micro-, the high definition for large visual field optical system of photographing, in the optical element surface Film Design of camera lens,
Its spectral region will then be exactly matched with the spectral sensitivity of human eye, THE SPECTRAL RESPONSE OF THE HUMAN EYE range at 0.4861 μm -0.5893 μm,
Lens optical part Film Design will not only match with human eye spectral region, but also take into account camera chain, the most terminating of image
Receiver is human eye, and stray light is the non-imaged light beam for reaching image planes, its presence makes image planes attached part illumination, to drop
The contrast of low imaging, and Film Design, it is beneficial to the elimination of its stray light and ghost, will greatly improve camera lens in this way
Resolution ratio, enhance the transmitance of system, and improve system contrast ability, it not only improves system observing scene details energy
Power, and scenery low contrast details is reproduced, contrast is higher, and scene outline is bright and new, and clear-cut margin, level is plentiful and substantial, and texture is strong,
Human eye is set to observe bright, clearly object.
Imaging optical system is the information transfer system, and from object plane to image planes, output image quality depends entirely on optical system
Unite transmission characteristic, geometric optics be airspace research optical system imaging rule, it is in fact parallel with airspace can also be in frequency domain
Middle analysis optical system imaging quality, i.e., study system space Frequency Domain Transfer with transmission function, this is that a kind of energy is comprehensive
Evaluate the good method of optical system imaging quality.So video it is micro-, photography large visual field optical system in aperture diaphragm is set
Position directly influences resolving power, designs camera lens with ZEMAX optical design software and optimizes, in photographic optical system
In, optical transfer function is that 60LP/mm is greater than 0.35-0.45 in cutoff frequency.As shown in attached drawing 3, in video microscopic system,
Optical transfer function is that 30LP/mm is greater than 0.3 in cutoff frequency.
The above is only presently preferred embodiments of the present invention and oneself, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments are still fallen in the range of the technology of the present invention puts case.
Claims (3)
1. a kind of video is micro-, photography large visual field optical system, it is characterised in that: the optical system from left to right divide by incident direction
It is not provided with balsaming lens, the first positive meniscus lens, diverging meniscus lens, the second positive meniscus lens and eyepiece group, described first
Aperture diaphragm, objective focal length 75.5mm are provided between positive meniscus lens and diverging meniscus lens, eyepiece focal length is -11.65mm,
Increment magnifying power is 6.5 times, and visual field is 15.5 °, the service band of objective system are as follows: 0.5 μm -0.75 μm, in photomicrography,
The operating distance of optical system is 8mm, and enlargement ratio is 65 times, object space linear field diameter 5.5mm, numerical aperture 0.25mm；
The balsaming lens and the matched mobile phone photographic camera lens of the optical system are relatively-stationary structures.
2. a kind of video as described in claim 1 is micro-, photography large visual field optical system, it is characterised in that: the camera chain
Airspace between the balsaming lens and the first positive meniscus lens is 1.5mm, the first positive meniscus lens and diverging meniscus lens
Between airspace be 1.9mm, airspace between diverging meniscus lens and the second positive meniscus lens is 1.8mm, and second just
Airspace between meniscus lens and eyepiece is 33.06mm.
3. a kind of video as described in claim 1 is micro-, photography large visual field optical system, it is characterised in that: the balsaming lens
It is made respectively of H-ZF1 and H-K9L optical material, the first positive meniscus lens is made of H-LaK2, and diverging meniscus lens is by H-ZF5 system
At the second positive meniscus lens is made of H-LaK2, and eyepiece group is made of H-ZF7LA and H-LaK2 optical material respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731665.9A CN106249382B (en) | 2016-08-26 | 2016-08-26 | A kind of video is micro-, large visual field optical system of photographing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610731665.9A CN106249382B (en) | 2016-08-26 | 2016-08-26 | A kind of video is micro-, large visual field optical system of photographing |
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| CN106249382A CN106249382A (en) | 2016-12-21 |
| CN106249382B true CN106249382B (en) | 2019-08-09 |
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| CN201610731665.9A Expired - Fee Related CN106249382B (en) | 2016-08-26 | 2016-08-26 | A kind of video is micro-, large visual field optical system of photographing |
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| CN111694135B (en) * | 2020-07-15 | 2024-05-31 | 北创光电科技(邵阳)有限公司 | Large wide-angle video lens with focal length of 8mm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164652A (en) * | 2003-11-28 | 2005-06-23 | Nikon Corp | Objective |
| CN202995131U (en) * | 2012-12-25 | 2013-06-12 | 河南中光学集团有限公司 | Telescope and microscope optical system |
| CN103558676A (en) * | 2013-11-07 | 2014-02-05 | 梧州奥卡光学仪器有限公司 | Six-time over-long working distance objective lens |
| CN206584106U (en) * | 2016-08-26 | 2017-10-24 | 南阳市百施特光电有限公司 | A kind of video is micro-, photography large visual field optical system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008209773A (en) * | 2007-02-27 | 2008-09-11 | Olympus Imaging Corp | Zoom lens, and electronic imaging apparatus using the same |
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- 2016-08-26 CN CN201610731665.9A patent/CN106249382B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164652A (en) * | 2003-11-28 | 2005-06-23 | Nikon Corp | Objective |
| CN202995131U (en) * | 2012-12-25 | 2013-06-12 | 河南中光学集团有限公司 | Telescope and microscope optical system |
| CN103558676A (en) * | 2013-11-07 | 2014-02-05 | 梧州奥卡光学仪器有限公司 | Six-time over-long working distance objective lens |
| CN206584106U (en) * | 2016-08-26 | 2017-10-24 | 南阳市百施特光电有限公司 | A kind of video is micro-, photography large visual field optical system |
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