CN208126074U - A kind of underwater figure viewed from behind imaging system shooting planktonic organism outline in turbid water body - Google Patents
A kind of underwater figure viewed from behind imaging system shooting planktonic organism outline in turbid water body Download PDFInfo
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- CN208126074U CN208126074U CN201820608807.7U CN201820608807U CN208126074U CN 208126074 U CN208126074 U CN 208126074U CN 201820608807 U CN201820608807 U CN 201820608807U CN 208126074 U CN208126074 U CN 208126074U
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Abstract
The utility model provides a kind of underwater figure viewed from behind imaging system that can shoot planktonic organism outline in turbid water body, including light source, condenser, the first plano-convex lens, the second plano-convex lens and the camera successively arranged on optical axis, the planar side opposite of the first plano-convex lens and the second plano-convex lens is arranged.The utility model is primarily directed to the higher water body environment of turbidity；Using figure viewed from behind image-forming principle (i.e. light source and camera are in the two sides of subject), impurity light is scattered, planktonic organism clearly outline can be taken in turbid water body.
Description
Technical field
The utility model provides a kind of imaging system, more particularly to one kind can shoot planktonic organism outline in turbid water body
Underwater figure viewed from behind imaging system.
Background technique
Existing underwater imaging system generally uses light source and camera to be imaged in the scheme of the same side to realize, clear in water body
The program works well in the case where clear.And in more muddy water body (such as estuary), light source and camera are in the same side
Ordinary optical imaging scheme can be because impurity be present such that imaging picture blur.
Utility model content
In order to overcome in turbid water body, since light source and camera are ipsilateral and cause impurity light to enter camera and make into
The problem of as fogging image, the utility model proposes one kind can shoot the underwater figure viewed from behind of planktonic organism outline in turbid water body at
As system, primarily directed to the higher water body environment of turbidity；Using figure viewed from behind image-forming principle, (i.e. light source and camera is in subject
Two sides), impurity light is scattered, planktonic organism clearly outline can be taken in turbid water body.
Technical solution adopted by the utility model to solve its technical problems is：One kind can shoot life of swimming in turbid water body
The underwater figure viewed from behind imaging system of object outline, including the light source, condenser, the first plano-convex lens, second successively arranged on optical axis
The planar side opposite of plano-convex lens and camera, the first plano-convex lens and the second plano-convex lens is arranged.
Further, the light source uses 5W 455nm waveform LED light source.
Further, the camera uses depth of field 20+CM, 24,300,000 pixels.
Further, the condenser is rotation parabolic, for converging light.
Further, first plano-convex lens and the second plano-convex lens focal length are 15cm, radius 5cm.
The utility model has the beneficial effects that：It is realized in turbid water body first and takes clearly planktonic organism outline,
Secondly the figure viewed from behind imaging system has the high depth of field (20+CM), the telecentric image (amplifying stage not influenced at a distance from lens by object
Not) and the internal structure of captured planktonic organism has very sharp profile.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure：Light source 1, condenser 2, the first plano-convex lens 3, the second plano-convex lens 4, camera 5, sink 6, target imaging object
Body 7, impurity 8.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
As shown in Figure 1, the laboratory system includes that the light source 1, condenser 2, the first plano-convex successively arranged on optical axis are saturating
Mirror 3, the second plano-convex lens 4, camera 5, for light source, the utility model uses LED technology, using 5W 455nm (blue) wavelength
LED light source 1；The condenser 2 is rotation parabolic, for converging light；First plano-convex lens 3 and the second plano-convex lens
4 focal lengths are 15cm, radius 5cm；The camera 5 uses depth of field 20+CM, 24,300,000 pixels.First plano-convex lens 3 and second
The planar side opposite of plano-convex lens 4 arranges that sink 6 is placed between the first plano-convex lens 3 and the second plano-convex lens 4, light source 1
The light of sending converges light by condenser 2, then penetrates the first plano-convex lens 3, generates the collimation by sampling water volume
Light beam.Parallel rays encounters the scattering of 8 light of impurity, because without entering camera 5 in the sink 6 for filling turbid water body.It is relatively miscellaneous
For matter 8, for target imaging object 7 because volume is larger, light can not form scattering.Once collimated light beam is flat by second
Convex lens 4, it will be focused again before 5 camera lens of camera, form the sketch figure of clearly target object.
Figure viewed from behind lighting engineering makes the system very economical in terms of luminous intensity, because into the nearly all of sampling volume
's
Light all passes through camera sensor.Since the system does not need a large amount of light, so the LED is suitable for relatively not
By dry
Planktonic organism is observed in the environment disturbed.This illumination scheme gives the small-sized transparent of extraordinary profile and comparison
The image of biological (such as zooplankter).Because light is directed into imaging sensor and will not scatter the shot of actual photographed
The intensity of object.The illumination scheme makes the system be the optical system of a telecentricity, it is meant that amplification factor with
Camera
Distance to sample is unrelated, to provide the chance of the zooplankter size in accurate measurement imaging volume.
Claims (5)
1. the underwater figure viewed from behind imaging system that one kind can shoot planktonic organism outline in turbid water body, which is characterized in that be included in light
Light source, condenser, the first plano-convex lens, the second plano-convex lens and the camera successively arranged on axis, the first plano-convex lens and second
The planar side opposite of plano-convex lens is arranged.
2. the underwater figure viewed from behind imaging system according to claim 1 for shooting planktonic organism outline in turbid water body, special
Sign is that the light source uses 5W 455nm waveform LED light source.
3. the underwater figure viewed from behind imaging system according to claim 1 for shooting planktonic organism outline in turbid water body, special
Sign is that the camera uses depth of field 20+CM, 24,300,000 pixels.
4. the underwater figure viewed from behind imaging system according to claim 1 for shooting planktonic organism outline in turbid water body, special
Sign is that the condenser is rotation parabolic, for converging light.
5. the underwater figure viewed from behind imaging system according to claim 1 for shooting planktonic organism outline in turbid water body, special
Sign is that first plano-convex lens and the second plano-convex lens focal length are 15cm, radius 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608807.7U CN208126074U (en) | 2018-04-26 | 2018-04-26 | A kind of underwater figure viewed from behind imaging system shooting planktonic organism outline in turbid water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608807.7U CN208126074U (en) | 2018-04-26 | 2018-04-26 | A kind of underwater figure viewed from behind imaging system shooting planktonic organism outline in turbid water body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208126074U true CN208126074U (en) | 2018-11-20 |
Family
ID=64186182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820608807.7U Active CN208126074U (en) | 2018-04-26 | 2018-04-26 | A kind of underwater figure viewed from behind imaging system shooting planktonic organism outline in turbid water body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208126074U (en) |
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2018
- 2018-04-26 CN CN201820608807.7U patent/CN208126074U/en active Active
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