CN103647904B - Microscopic image capturing instrument - Google Patents
Microscopic image capturing instrument Download PDFInfo
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- CN103647904B CN103647904B CN201310706039.0A CN201310706039A CN103647904B CN 103647904 B CN103647904 B CN 103647904B CN 201310706039 A CN201310706039 A CN 201310706039A CN 103647904 B CN103647904 B CN 103647904B
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Abstract
The invention discloses a microscopic image capturing instrument. The microscopic image capturing instrument comprises a shooting box body and a photographing device; a lamp installation base is arranged inside the shooting box body; an arc-shaped concave chamber is formed in the bottom surface of the lamp installation base; a plurality of lamp groups which are distributed in a surrounding mode are arranged on the chamber surface of the arc-shaped concave chamber; the lamp groups are formed by a plurality of luminophors which are in series connection; luminous surfaces of the luminophors are exposed inside the arc-shaped concave chamber; a position of the lamp installation base, which is arranged at the bottom of the arc-shaped concave chamber, is provided with a shooting hole which is communicated with the arc-shaped concave chamber; the photographing device is installed on the lamp installation base; a shooting lens of the photographing device extends into the shooting hole; a lamp control system which is used for controlling the lamp groups to be sequentially operated by turns in an interval mode is arranged on the lamp installation base. Compared with the prior art, the microscopic image capturing instrument has the advantages of not needing operations of manually moving an auxiliary illuminating lamp, reducing shooting workload, improving shooting efficiency and avoiding some areas of a to-be-shot cultural relic from being forgotten shooting.
Description
Technical field
The present invention relates to one kind catch instrument, specifically refer to it is a kind of can the texture structure precise and tiny to body surface carry out seizure bat
The microscopic images taken the photograph catch instrument.
Background technology
The image pickup method of the existing precise and tiny texture structure to article surface regional is:The first step, first places article
On the table, and with an assist illuminator it is radiated on a certain region of article surface, then photographic means is faced into article
Surface, presses shutter, you can complete the shooting in the region, and second step, mobile assist illuminator makes assist illuminator be radiated at thing
On another region on product surface, then press shutter, you can complete the shooting in another region, the 3rd step, so repeatedly second step,
The precise and tiny shooting of article surface regional can be completed, so, each photo for coming is shot and is corresponded to assist illuminator
Clearly the precise and tiny texture structure in the region can be shown at the region of irradiation, then article researcher is more by what is shot
Open photo and check that each position carries out precise and tiny structure to article.
However, this kind of image pickup method needs artificially ceaselessly to move the position of assist illuminator, so on the one hand have and shoot
Workload is big, the relatively low shortcoming of shooting efficiency, on the other hand can also cause a certain region of article to omit the consequence for shooting.
In view of this, the present inventor has made intensive studies for drawbacks described above, and thus this case produces.
The content of the invention
Instrument is caught it is an object of the invention to provide a kind of microscopic images, each position that it can be automatically to article surface is entered
The precise and tiny shooting of row, without artificial operation, with shooting, workload is small, shooting efficiency is high, and article can't be caused some region of
Omit the consequence for shooting.
In order to reach above-mentioned purpose, solution of the invention is:
A kind of microscopic images catch instrument, including shoot casing and the photographic means with taking lens, above-mentioned shooting casing
Lamp holder is inside provided with, the bottom surface of above-mentioned Lamp holder is provided with inside arch shaped cavity, above-mentioned arch shaped cavity
Cavity surface is provided with several along the circumferencial direction of above-mentioned arch shaped cavity around the lamp group being distributed, and above-mentioned lamp group is connected on by several
Illuminator composition together, and the light-emitting area of each above-mentioned illuminator is exposed in above-mentioned arch shaped cavity, and above-mentioned arch shaped cavity chamber
The above-mentioned luminaire spacing of whole on face is covered with the Cavity surface of above-mentioned arch shaped cavity, and is arranged in array, above-mentioned lamp installation
Seat is located at the bottom of chamber of above-mentioned arch shaped cavity and offers the shooting hole communicated with above-mentioned arch shaped cavity, and above-mentioned photographic means is arranged on
On above-mentioned Lamp holder, and the taking lens of above-mentioned photographic means is stretched into above-mentioned shooting hole and set down, above-mentioned light fixture
Mounting seat is provided with each above-mentioned lamp group of control and is spaced the lighting control system for taking turns to operate successively in order.
Above-mentioned Lamp holder is in the hollow hemisphere face body structure that back-off is set, and the lower end surface of above-mentioned Lamp holder is in
Opening shape, the hollow chamber of above-mentioned Lamp holder is above-mentioned arch shaped cavity, and the lower end port of above-mentioned Lamp holder is above-mentioned
The accent of arch shaped cavity, above-mentioned shooting hole is arranged on the top surface of above-mentioned Lamp holder.
Convex annular edge is convexly equipped with the lower end port lateral wall of above-mentioned Lamp holder, if above-mentioned convex annular is along by dry plate
L-type connection sheet is connected with above-mentioned shooting casing, each above-mentioned L-type connection sheet along the multiple circumferentially spaced of above-mentioned convex annular edge,
The horizontal part of above-mentioned L-type connection sheet is folded and is located on the upper surface on above-mentioned convex annular edge, and the horizontal part of above-mentioned L-type connection sheet with it is upper
State convex annular and lock together along coordinating to fix by bolts and nuts, the vertical portion of above-mentioned L-type connection sheet and above-mentioned shooting case
The madial wall of body is fitted, and the vertical portion of above-mentioned L-type connection sheet is locked and connected by screw with above-mentioned shooting casing.
Each above-mentioned illuminator be arranged on above-mentioned Lamp holder outer surface on, and each above-mentioned illuminator light-emitting area direction
The hollow chamber of above-mentioned Lamp holder, the madial wall of above-mentioned Lamp holder corresponds to the position difference of each above-mentioned illuminator
Offer the exposed luminescence window of the light-emitting area of above-mentioned illuminator.
Above-mentioned illuminator is LED.
Above-mentioned shooting casing is the opening-like hollow chamber of upper and lower ends, and the upper end port of above-mentioned bat newspaper box body is provided with
Dismountable upper end cover, the lower end port of above-mentioned shooting casing is provided with dismountable lower bottom cover, and above-mentioned lower bottom cover is provided with confession
The sponge plate that thing to be taken pictures is positioned over.
Between the upper end end face of the bottom surface of above-mentioned upper end cover and above-mentioned shooting casing and above-mentioned lower bottom cover upper surface with
The location structure of male-female engagement is provided between the lower end surface of above-mentioned shooting casing.
Above-mentioned location structure includes convex grain and the cavity of interior fixation is snapped into for convex grain.
The controlling switch of the above-mentioned lighting control system work of control is installed, above-mentioned lighting control system includes supplying outside above-mentioned shooting casing
Power supply, several corresponding settings one by one with each above-mentioned lamp group, and the lamp group controller of lamp group's work is controlled, and control is each
Above-mentioned lamp group controller is spaced the master controller for taking turns to operate successively in order, and the input of above-mentioned master controller is by above-mentioned control
System switch is electrically connected with above-mentioned power supply, the input of each above-mentioned lamp group controller respectively with the output end of above-mentioned master controller
Electrical connection, the output end of each above-mentioned lamp group controller respectively with the input corresponding electrical connection one by one of each above-mentioned lamp group, it is above-mentioned
Shoot in casing and be provided with the circuit installing plate being covered on above above-mentioned Lamp holder, foregoing circuit installing plate and above-mentioned shooting case
Body is locked together, above-mentioned lighting control system be arranged on foregoing circuit installing plate on, offered on foregoing circuit installing plate with it is above-mentioned
Shoot the port that is connected of hole, the upper surface of foregoing circuit installing plate is locked intrinsic camera mounting bracket, above-mentioned photographic means is with can
Up and down, the mode for moving left and right is arranged on above-mentioned camera mounting bracket, is provided with above-mentioned shooting hole and is sheathed on above-mentioned shooting mirror
Rubber ring outside head, and the upper end of above-mentioned rubber ring extended in above-mentioned port.
Above-mentioned photographic means is automat, and above-mentioned lighting control system also includes control above-mentioned automat interval work
, and interval working time and the two above-mentioned lamp group controllers of automat interval working time identical camera control
Device, the input of above-mentioned camera controller is connected with the output end of above-mentioned master controller, the output end of above-mentioned camera controller with
The control end control connection of above-mentioned automat.
After using such scheme, a kind of microscopic images of the invention catch instrument, and article to be captured is positioned over into bat when using
Take the photograph in casing, and in Lamp holder lower section, then control lighting control system, lighting control system to control each lamp group to be spaced in turn successively
Work, shinny the treating of now each lamp group shoot a certain region of article and be irradiated, because of each lamp group arcuately cavity
Circumferencial direction around distribution, so, irradiated successively by each position for treating shooting article surface circumferential direction by each lamp group,
Meanwhile, photographic means work when each lamp group is bright is treated shooting article and is shot, photograph of such photographic means according to each lamp group
To penetrate can treat the regional for shooting article surface and carry out precise and tiny shooting respectively, without artificial assist illuminator position of moving
Operation, substantially reduces shooting workload and improves shooting efficiency, and a certain region of article to be captured can't be caused to omit what is shot
Consequence;Also there is easy to carry, simple structure, shooting can be carried out to historical relic in archeological site, to existing historical relic
Shooting field has huge breakthrough, practical, is conducive to wideling popularize.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is schematic block circuit diagram of the invention.
Specific embodiment
This case is described in further detail with reference to the accompanying drawings and detailed description.
This case is related to a kind of microscopic images to catch instrument, as shown in Figure 1, 2, including shoots casing 1 and with taking lens 21
Photographic means 2.
Wherein, it is the opening-like hollow chamber of upper and lower ends to shoot casing 1, is set in the upper end port of the shooting casing 1
There is dismountable upper end cover 3, the lower end port for shooting casing 1 is provided with dismountable lower bottom cover 4, the upper end cover 3 is in Jiong type, under
Bottom 4 is in the type of falling Jiong, and upper end cover 3 and lower bottom cover 4 are removable with case lid with existing casing with being detachably connected for shooting casing 1
Unload that the mode being fixedly connected is identical, the applicant is not repeated herein.
Lamp holder 5 is provided with the shooting casing 1, the bottom surface of Lamp holder 5 is provided with inside arch shaped cavity
51, the hollow hemisphere face body structure that Lamp holder 5 is set in back-off, the lower end surface of Lamp holder 5 is opening-like, light fixture
The hollow chamber of mounting seat 5 is arch shaped cavity 51, and the lower end port of Lamp holder 5 is the accent of arch shaped cavity 51, light fixture peace
Convex annular is convexly equipped with the lower end port lateral wall for filling seat 5 along 52, if convex annular passes through dry plate L-type connection sheet 6 and shoot along 52
Casing 1 is connected, each L-type connection sheet 6 along convex annular along 52 it is multiple circumferentially spaced, the horizontal part of each L-type connection sheet 6 is folded
Convex annular is located at along 52 upper surface, and the horizontal part of L-type connection sheet 6 coordinates solid along 52 with convex annular by bolts and nuts
Surely lock together, the vertical portion of L-type connection sheet 6 and shoot the madial wall of casing 1 and fit, and L-type connection sheet 6 is vertical
Portion is locked and connected by screw with casing 1 is shot, and can realize that Lamp holder 5 is being shot in casing 1 by L-type connection sheet 6
It is detachably connected.
The Cavity surface of the arch shaped cavity 51 be provided with several arcuately cavity 51 circumferencial direction around distribution lamp group 70,
Each lamp group 70 constitutes by several illuminators 7 being cascaded, and each illuminator 7 is LED, each illuminator 7
Light-emitting area is exposed in arch shaped cavity 51, and illuminator 7 light-emitting area towards the centre of lower bottom cover 4, on Lamp holder 5
It is covered with the Cavity surface of arch shaped cavity 51 with several illuminators 7, and the uniform intervals of each illuminator 7, and is arranged in array, and
And, each illuminator 7 is arranged on the outer surface of Lamp holder 5, and each illuminator 7 light-emitting area towards Lamp holder 5
Hollow chamber, the madial wall of Lamp holder 5 offers the hair for each illuminator 7 corresponding to the position of each illuminator 7 respectively
The exposed luminescence window 53 of smooth surface, place offers the shooting hole 54 communicated with arch shaped cavity 51 on the top surface of the Lamp holder 5,
Photographic means 2 be arranged on Lamp holder 5 top surface on, this photographic means 2 be automat, and photographic means 2 shooting
Camera lens 21 is stretched into shooting hole 54, and towards lower bottom cover 4.
The Lamp holder 5 is provided with each lamp group 70 of control and is spaced the lighting control system for taking turns to operate successively in order, and claps
Take the photograph outside casing 1 and the controlling switch 80 of control lighting control system work be installed, the lighting control system includes power supply 81, several with
What each lamp group 70 was oppositely arranged one by one, and the lamp group controller 82 of the work of lamp group 70 is controlled, each lamp group controller 82 is controlled by suitable
Sequence is spaced the master controller 83 for taking turns to operate successively, and control automat interval work, and automat interval
Working time and the interval working time identical camera controller 84 of two lamp group controllers, the input of the master controller 83 lead to
Cross controlling switch 80 to be electrically connected with power supply 81, the input point of the input of camera controller 84 and each lamp group controller 82
Output end not with master controller 83 is electrically connected, and the output end of each lamp group controller 82 is respectively with the input of each lamp group 70 one by one
Corresponding electrical connection, the output end of the camera controller 84 is connected with the control end control of automat.
The circuit installing plate 9 for being covered on the top of Lamp holder 5, circuit installing plate 9 and shooting are provided with the shooting casing 1
Casing 1 is locked together, and the lighting control system is arranged on the circuit installing plate 9, and is offered on circuit installing plate 9 and shot hole
54 ports being connected(Not shown in figure), the upper surface of the circuit installing plate 9 is locked intrinsic camera mounting bracket 91, photographic means
2 by can up and down, move left and right in the way of be arranged on camera mounting bracket 91 on, i.e., camera mounting bracket 91 is of an L-shaped structure, this camera peace
The horizontal part and circuit installing plate 9 for shelving 91 are locked and connected, the vertical portion of the camera mounting bracket 91 and the lateral wall of photographic means 2
Fit, and cross adjustment hole offered on this vertical portion, the cross adjustment hole be provided with can up and down, the lock that moves left and right
Tight bolt, the head limit of this clamping screw is solid on vertical portion, and the free end end of clamping screw passes through cross adjustment hole extremely
Locked and connected with photographic means 2 in photographic means 2, photograph can be realized by this cross adjustment hole and movable locking bolt
Device is about 2, the fine setting of left and right directions.
A kind of microscopic images of the invention catch instrument, are first lifted up shooting casing 1, make shooting casing 1 with the phase of lower bottom cover 4
Separate, then article to be captured is placed on lower bottom cover 4, shoot casing 1 and cover on lower bottom cover 4, article quilt cover to be captured sets
In controlling switch 80 in arc chambers 51, is then pressed, controlling switch 80 is closed, lighting control system work, the master control of lighting control system
Device processed 83 controls camera controller 84 and one lamp group controller 82 to work, and the work of this lamp group controller 82 can be controlled and the lamp
Group controller 82 corresponding lamp group 70 light, and the light that lamp group 70 sends can be radiated at the somewhere position of article surface to be captured
On, while the work of camera controller 84 can control photographic means 2 to work, treat shooting article and shot, and shoot what is come
The precise and tiny texture structure at article somewhere position can be clearly displayed in picture, when master controller 83 controls another lamp group controller
The task again of camera controller 84 is correspondingly controlled during 82 work, now another lamp group controller 82 can be controlled and the lamp group control
Device 82 corresponding another lamp group 70 light, and the light that lamp group 70 sends can be radiated at another somewhere portion of article surface to be captured
On position, while working again for camera controller 84 can control photographic means 2 to work, treat shooting article and shot, and clap
The precise and tiny texture structure at another somewhere position of article, so repeatedly, photographic means 2 can be clearly displayed in the picture for taking out
Can shoot the picture of the precise and tiny structure in a certain position of several article surfaces, and the precise and tiny structure of article shown by per pictures
Position differs, compared with prior art, the operation without artificial mobile assist illuminator position, you can shoot some
The picture of the precise and tiny structure of article different parts is opened, shooting workload is substantially reduced and is improved shooting efficiency, while Lamp holder 5
Hemisphere face body structure each position of article surface circumferential direction can be irradiated and is shot, thing to be captured can't be caused
Omit the consequence for shooting in a certain region of product;Also there is easy to carry, simple structure, historical relic can be carried out in archeological site
Shooting, shooting field to existing historical relic has huge breakthrough, practical, is conducive to wideling popularize.
In the present invention, the rubber ring 100 being sheathed on outside taking lens 21, and rubber ring 100 are installed in the shooting hole 54
Upper end extend in above-mentioned port, so, by this rubber ring 100 can prevent photographic means 2 install when the quilt of taking lens 21
Wound.
In the present invention, lower bottom cover 4 is provided with the sponge plate 41 being positioned over for thing to be taken pictures, so, by this sponge plate
41 can play shock-proof effect, shake and cause the poor problem of shooting quality when preventing article to be captured from shooting.
In the present invention, between the bottom surface of the upper end cover 3 and the upper end end face for shooting casing 1 and lower bottom cover 4 upper surface
The location structure of male-female engagement is provided between the lower end surface for shooting casing 1(Indicated in figure), this location structure includes convex
Grain is convex respectively with the lower end surface of the cavity that interior fixation is snapped into for convex grain, the i.e. bottom surface of the upper end cover 3 and shooting casing 1
Described convex grain is provided with, the upper surface of the upper end end face and lower bottom cover 4 that shoot casing 1 is arranged with described cavity respectively, passes through
Convex grain is more firm with the installation that the cooperation of cavity is capable of achieving upper end cover 3 and lower bottom cover 4, convenient.
The foregoing is only the preferred embodiments of the present invention, all impartial changes done with scope of the invention as claimed and
Modification, all should belong to the scope of the claims in the present invention.
Claims (1)
1. a kind of microscopic images catch instrument, it is characterised in that:Photographic means including shooting casing and with taking lens, it is above-mentioned
Shoot and Lamp holder is set in casing, the bottom surface of above-mentioned Lamp holder is provided with inside arch shaped cavity, above-mentioned arc
The Cavity surface of cavity is provided with several along the circumferencial direction of above-mentioned arch shaped cavity around the lamp group being distributed, and above-mentioned lamp group is by several
The illuminator composition being cascaded, and the light-emitting area of each above-mentioned illuminator is exposed in above-mentioned arch shaped cavity, and above-mentioned arc
The above-mentioned luminaire spacing of whole in cavity Cavity surface is covered with the Cavity surface of above-mentioned arch shaped cavity, and is arranged in array, above-mentioned lamp
Tool mounting seat is located at the bottom of chamber of above-mentioned arch shaped cavity and offers the shooting hole communicated with above-mentioned arch shaped cavity, above-mentioned photographic means
On above-mentioned Lamp holder, and the taking lens of above-mentioned photographic means is stretched into above-mentioned shooting hole and set down, on
State Lamp holder and be provided with each above-mentioned lamp group of control and be spaced the lighting control system for taking turns to operate successively in order;
The hollow hemisphere face body structure that above-mentioned Lamp holder is set in back-off, the lower end surface of above-mentioned Lamp holder is in opening
Shape, the hollow chamber of above-mentioned Lamp holder is above-mentioned arch shaped cavity, and the lower end port of above-mentioned Lamp holder is above-mentioned arc
The accent of cavity, above-mentioned shooting hole is arranged on the top surface of above-mentioned Lamp holder;
Convex annular edge is convexly equipped with the lower end port lateral wall of above-mentioned Lamp holder, if above-mentioned convex annular is along by dry plate L-type
Connection sheet is connected with above-mentioned shooting casing, and each above-mentioned L-type connection sheet is above-mentioned along the multiple circumferentially spaced of above-mentioned convex annular edge
The horizontal part of L-type connection sheet is folded and is located on the upper surface on above-mentioned convex annular edge, and above-mentioned L-type connection sheet horizontal part and above-mentioned ring
Shape convex edge coordinates fixation to lock together by bolts and nuts, the vertical portion of above-mentioned L-type connection sheet and above-mentioned shooting casing
Madial wall is fitted, and the vertical portion of above-mentioned L-type connection sheet is locked and connected by screw with above-mentioned shooting casing;
Above-mentioned shooting casing is the opening-like hollow chamber of upper and lower ends, and the upper end port for shooting casing is provided with removably
Upper end cover, the lower end port for shooting casing is provided with dismountable lower bottom cover, and above-mentioned lower bottom cover is provided with to be placed for thing to be taken pictures
In upper sponge plate;
Between the upper end end face of the bottom surface of above-mentioned upper end cover and above-mentioned shooting casing and above-mentioned lower bottom cover upper surface with it is above-mentioned
The location structure of male-female engagement is provided between the lower end surface for shooting casing;
Above-mentioned location structure includes convex grain and the cavity of interior fixation is snapped into for convex grain;
The controlling switch of the above-mentioned lighting control system work of control is installed, above-mentioned lighting control system includes power supply electricity outside above-mentioned shooting casing
Source, several corresponding settings one by one with each above-mentioned lamp group, and the lamp group controller of lamp group's work is controlled, and control each above-mentioned
Lamp group controller is spaced the master controller for taking turns to operate successively in order, and the input of above-mentioned master controller is opened by above-mentioned control
Pass electrically connects with above-mentioned power supply, and the output end of the input of each above-mentioned lamp group controller respectively with above-mentioned master controller is electrically connected
Connect, the output end of each above-mentioned lamp group controller respectively with the input corresponding electrical connection one by one of each above-mentioned lamp group, above-mentioned shooting
The circuit installing plate being covered on above above-mentioned Lamp holder, foregoing circuit installing plate and above-mentioned shooting box lock are provided with casing
Gu together, above-mentioned lighting control system is arranged on foregoing circuit installing plate, offered on foregoing circuit installing plate and above-mentioned shooting
The port that hole is connected, the upper surface of foregoing circuit installing plate is locked intrinsic camera mounting bracket, above-mentioned photographic means with can up and down,
The mode for moving left and right is arranged on above-mentioned camera mounting bracket, is provided with above-mentioned shooting hole and is sheathed on outside above-mentioned taking lens
Rubber ring, and the upper end of above-mentioned rubber ring extended in above-mentioned port;
Each above-mentioned illuminator is arranged on the outer surface of above-mentioned Lamp holder, and each above-mentioned illuminator light-emitting area towards above-mentioned
The hollow chamber of Lamp holder, the madial wall of above-mentioned Lamp holder is opened up respectively corresponding to the position of each above-mentioned illuminator
There is the exposed luminescence window of the light-emitting area of above-mentioned illuminator;
Above-mentioned illuminator is LED;
Above-mentioned photographic means is automat, and above-mentioned lighting control system also includes control above-mentioned automat interval work,
And interval working time and the interval working time identical camera controller of two above-mentioned lamp group controllers of automat, on
The input for stating camera controller is connected with the output end of above-mentioned master controller, the output end of above-mentioned camera controller with it is above-mentioned from
The control end control connection of dynamic camera.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201310706039.0A CN103647904B (en) | 2013-12-19 | 2013-12-19 | Microscopic image capturing instrument |
Applications Claiming Priority (1)
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CN201310706039.0A CN103647904B (en) | 2013-12-19 | 2013-12-19 | Microscopic image capturing instrument |
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CN103647904A CN103647904A (en) | 2014-03-19 |
CN103647904B true CN103647904B (en) | 2017-05-17 |
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CN201310706039.0A Active CN103647904B (en) | 2013-12-19 | 2013-12-19 | Microscopic image capturing instrument |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106851074B (en) * | 2017-03-31 | 2023-05-19 | 上海诺亚木木机器人科技有限公司 | Image acquisition device and electronic equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6273338B1 (en) * | 1998-09-22 | 2001-08-14 | Timothy White | Low cost color-programmable focusing ring light |
CN1806167A (en) * | 2003-06-12 | 2006-07-19 | 日本轻金属株式会社 | Impurity measuring method and device |
CN202257967U (en) * | 2011-10-14 | 2012-05-30 | 彭常安 | Food nondestructive detection teaching system |
-
2013
- 2013-12-19 CN CN201310706039.0A patent/CN103647904B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6273338B1 (en) * | 1998-09-22 | 2001-08-14 | Timothy White | Low cost color-programmable focusing ring light |
CN1806167A (en) * | 2003-06-12 | 2006-07-19 | 日本轻金属株式会社 | Impurity measuring method and device |
CN202257967U (en) * | 2011-10-14 | 2012-05-30 | 彭常安 | Food nondestructive detection teaching system |
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