CN202929352U - Digital real-time holographic shooting system based on fiber - Google Patents
Digital real-time holographic shooting system based on fiber Download PDFInfo
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- CN202929352U CN202929352U CN201220457579.0U CN201220457579U CN202929352U CN 202929352 U CN202929352 U CN 202929352U CN 201220457579 U CN201220457579 U CN 201220457579U CN 202929352 U CN202929352 U CN 202929352U
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- 239000000835 fiber Substances 0.000 title abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 47
- 230000003760 hair shine Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 231100001261 hazardous Toxicity 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a digital real-time holographic shooting system based on fiber and belongs to optical holographic technology. Laser light generated by a laser device enters a Y-shaped fiber after being coupled by a coupling lens, the Y-shaped fiber divides the laser light into two paths of object light and reference light, the object light irradiates on an object to be shot after passing through the Y-shaped fiber, light reflected or projected by the object to be shot irradiates on a CCD camera after passing through a beam splitter mirror; the reference light directly irradiates on the beam splitter mirror after passing through the Y-shaped fiber, light distances of the object light and the reference light on whole light paths are equal to each other; the beam splitter mirror is adjusted to make an included angle of the object light and the reference light be smaller than 3 DEG, the reference light is reflected by the beam splitter mirror at the CCD camera to form interference with light beams of the object light, the CCD camera records interference fringes, and real-time reproduction can be obtained through a computer. The digital real-time holographic shooting system can carry out detection at a dangerous area with an enclosed and complex structure by utilizing a digital real-time holographic method and can obtain information of the areas in real time.
Description
Technical field
The utility model relates to a kind of digital holographic real-time camera system based on optical fiber, belongs to optical holography.
Background technology
The numeral holographic real-time is a kind of very useful detection method, and it has the characteristics such as the whole audience, real-time, contactless, high precision, high sensitivity, has been used for the aspects such as quality control, Non-Destructive Testing, stress analysis, vibration analysis, temperature field detection.
A kind of digital holographic real-time test instrument has been proposed in patent CN200975887Y, replaced traditional holographic dry plate with the COMS camera, can be real-time hologram be shown, and be kept in computing machine with the form of image file, but this apparatus structure is complicated, and can't take the hologram of object in the zone that enclosed construction, labyrinth, hazardous location or the general measure means such as remote are difficult to arrive.Have at present a lot of people to be engaged in the research of digital holographic real-time, but not the people with fiber optic applications in digital holographic real-time, therefore have certain limitation for the object that detects.
Summary of the invention
For the problems referred to above, the utility model provides a kind of digital holographic real-time camera system based on optical fiber, can detect in the method for enclosed construction, labyrinth, hazardous location Applied Digital holographic real-time those regional information of acquisition that can be real-time.
For realizing goal of the invention, the technical solution adopted in the utility model: system comprises laser instrument 1, coupled lens 2, y-type optical fiber 3, shot object 4, beam splitter 5, ccd video camera 6, computer 7; Laser instrument 1 arranges over against coupled lens 2, enter in y-type optical fiber 3 after the coupling of laser by coupled lens 2 that laser instrument 1 produces, y-type optical fiber 3 is divided into object light and reference light two-way with laser, object light is by after y-type optical fiber 3, shine on shot object 4, then the light of shot object 4 reflections or projection shines on ccd video camera 6 through after beam splitter 5; Another road reference light, light beam shine directly on beam splitter 5 after by y-type optical fiber 3, the equivalent optical path of whole light path object light and reference light; Regulate spectroscope 5, make after object light and reference light all pass through spectroscope 5, the angle of two-beam is less than 3 degree, and the light beam that is reflected in ccd video camera 6 places and object light through beam splitter 5 forms interference, by ccd video camera 6 recording interference fringes, calculate real-time reproduction through computer 7 at last.
Described y-type optical fiber 3 adopts the y-type optical fiber of 1:2 splitting ratio.
Described laser instrument 1 adopts semiconductor laser or He-Ne laser instrument.
Described reference light light path is by being provided with attenuator between y-type optical fiber 3 exits and spectroscope 5.
Described laser instrument 1, coupled lens 2, y-type optical fiber 3, shot object 4, beam splitter 5, ccd video camera 6, computer 7 is commercially available common components.
The beneficial effects of the utility model: simplified greatly the structure of device, made device compact more flexibly, enlarged simultaneously the range of application of digital holographic real-time, made digital holographic real-time be used in enclosed construction, labyrinth, hazardous location.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-laser instrument, 2-coupled lens, 3-Y type optical fiber, 4-shot object, 5-beam splitter, 6-CCD video camera, 7-computer.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, understands to facilitate the technician.
As shown in Figure 1: system comprises laser instrument 1, coupled lens 2, y-type optical fiber 3, shot object 4, beam splitter 5, ccd video camera 6, computer 7; Laser instrument 1 arranges over against coupled lens 2, enter in y-type optical fiber 3 after the coupling of laser by coupled lens 2 that laser instrument 1 produces, y-type optical fiber 3 is divided into object light and reference light two-way with laser, object light is by after y-type optical fiber 3, shine on shot object 4, then the light of shot object 4 reflections or projection shines on ccd video camera 6 through after beam splitter 5; Another road reference light, light beam shine directly on beam splitter 5 after by y-type optical fiber 3, the equivalent optical path of whole light path object light and reference light; Regulate spectroscope 5, make after object light and reference light all pass through spectroscope 5, the angle of two-beam is less than 3 degree, and the light beam that is reflected in ccd video camera 6 places and object light through beam splitter 5 forms interference, by ccd video camera 6 recording interference fringes, calculate real-time reproduction through computer 7 at last.
Described y-type optical fiber 3 adopts the y-type optical fiber of 1:2 splitting ratio.
Described laser instrument 1 adopts semiconductor laser or He-Ne laser instrument.
Described reference light light path is by being provided with attenuator between y-type optical fiber 3 exits and spectroscope 5.
Embodiment 1
As shown in Figure 1: system comprises laser instrument 1, coupled lens 2, y-type optical fiber 3, shot object 4, beam splitter 5, ccd video camera 6, computer 7; Laser instrument 1 adopts semiconductor laser, laser instrument 1 arranges over against coupled lens 2, enter in y-type optical fiber 3 after the coupling of laser by coupled lens 2 that laser instrument 1 produces, y-type optical fiber 3 adopts the y-type optical fiber of 1:2 splitting ratio, y-type optical fiber 3 is divided into object light and reference light two-way with laser, object light shines on shot object 4 by after y-type optical fiber 3, and then the light of shot object 4 reflections or projection shines on ccd video camera 6 through after beam splitter 5; Another road reference light, light beam shine directly on beam splitter 5 after by y-type optical fiber 3, the equivalent optical path of whole light path object light and reference light; Regulate spectroscope 5, make after object light and reference light all pass through spectroscope 5, the angle of two-beam is less than 3 degree, and the light beam that is reflected in ccd video camera 6 places and object light through beam splitter 5 forms interference, by ccd video camera 6 recording interference fringes, calculate real-time reproduction through computer 7 at last.
Embodiment 2
As shown in Figure 1: system comprises laser instrument 1, coupled lens 2, y-type optical fiber 3, shot object 4, beam splitter 5, ccd video camera 6, computer 7; Laser instrument 1 adopts the He-Ne laser instrument, laser instrument 1 arranges over against coupled lens 2, enter in y-type optical fiber 3 after the coupling of laser by coupled lens 2 that laser instrument 1 produces, y-type optical fiber 3 adopts the y-type optical fiber of 1:2 splitting ratio, y-type optical fiber 3 is divided into object light and reference light two-way with laser, object light shines on shot object 4 by after y-type optical fiber 3, and then the light of shot object 4 reflections or projection shines on ccd video camera 6 through after beam splitter 5; Another road reference light, reference light light path be by being provided with attenuator between y-type optical fiber 3 exits and spectroscope 5, light beam irradiates to beam splitter 5, the equivalent optical path of whole light path object light and reference light; Regulate spectroscope 5, make after object light and reference light all pass through spectroscope 5, the angle of two-beam is less than 3 degree, and the light beam that is reflected in ccd video camera 6 places and object light through beam splitter 5 forms interference, by ccd video camera 6 recording interference fringes, calculate real-time reproduction through computer 7 at last.
The utility model has been simplified the structure of device greatly, makes device compact more flexibly, has enlarged simultaneously the range of application of digital holographic real-time, makes digital holographic real-time be used in enclosed construction, labyrinth, hazardous location.
The utility model describes by accompanying drawing, in the situation that do not break away from the utility model scope, can also carry out various conversion and be equal to replacement the utility model patent, therefore, the utility model patent is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall in the utility model Patent right requirement scope.
Claims (4)
1. digital holographic real-time camera system based on optical fiber, it is characterized in that: system comprises laser instrument, coupled lens, y-type optical fiber, shot object, beam splitter, ccd video camera, computer; Laser instrument is over against the coupled lens setting, enter in y-type optical fiber after the coupling of laser by coupled lens that laser instrument produces, y-type optical fiber is divided into object light and reference light two-way with laser, object light is by after y-type optical fiber, shine on shot object, then the light of shot object reflection or projection shines on ccd video camera through after beam splitter; Another road reference light, light beam shine directly on beam splitter after by y-type optical fiber, the equivalent optical path of whole light path object light and reference light; Regulate spectroscope, make after object light and reference light all pass through spectroscope, the angle of two-beam is less than 3 degree, and the light beam that is reflected in ccd video camera place and object light through beam splitter forms interference, by the ccd video camera recording interference fringe, calculate real-time reproduction picture through computer at last.
2. a kind of digital holographic real-time camera system based on optical fiber according to claim 1, is characterized in that: the y-type optical fiber of described y-type optical fiber employing 1:2 splitting ratio.
3. a kind of digital holographic real-time camera system based on optical fiber according to claim 1, is characterized in that: described laser instrument 1 employing semiconductor laser or He-Ne laser instrument.
4. a kind of digital holographic real-time camera system based on optical fiber according to claim 1, it is characterized in that: described reference light light path is by being provided with attenuator between y-type optical fiber exit and spectroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457579.0U CN202929352U (en) | 2012-09-10 | 2012-09-10 | Digital real-time holographic shooting system based on fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457579.0U CN202929352U (en) | 2012-09-10 | 2012-09-10 | Digital real-time holographic shooting system based on fiber |
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| Publication Number | Publication Date |
|---|---|
| CN202929352U true CN202929352U (en) | 2013-05-08 |
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| CN201220457579.0U Expired - Fee Related CN202929352U (en) | 2012-09-10 | 2012-09-10 | Digital real-time holographic shooting system based on fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198450A (en) * | 2014-08-27 | 2014-12-10 | 江苏锐汗德医疗科技有限公司 | Light path detection device for full-automatic time resolution detector |
| CN110045587A (en) * | 2019-03-13 | 2019-07-23 | 昆明理工大学 | It is a kind of to be used for the device that the scene of a fire is searched and rescued based on optical fiber infrared holography |
| CN110133983A (en) * | 2019-04-25 | 2019-08-16 | 广东工业大学 | A kind of laser hologram acquisition system based on optical fiber transmission |
-
2012
- 2012-09-10 CN CN201220457579.0U patent/CN202929352U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198450A (en) * | 2014-08-27 | 2014-12-10 | 江苏锐汗德医疗科技有限公司 | Light path detection device for full-automatic time resolution detector |
| CN110045587A (en) * | 2019-03-13 | 2019-07-23 | 昆明理工大学 | It is a kind of to be used for the device that the scene of a fire is searched and rescued based on optical fiber infrared holography |
| CN110133983A (en) * | 2019-04-25 | 2019-08-16 | 广东工业大学 | A kind of laser hologram acquisition system based on optical fiber transmission |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20140910 |
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| EXPY | Termination of patent right or utility model |