CN205844724U - A kind of digital speckle projector - Google Patents
A kind of digital speckle projector Download PDFInfo
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- CN205844724U CN205844724U CN201620544933.1U CN201620544933U CN205844724U CN 205844724 U CN205844724 U CN 205844724U CN 201620544933 U CN201620544933 U CN 201620544933U CN 205844724 U CN205844724 U CN 205844724U
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- speckle
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Abstract
The utility model discloses a kind of digital speckle projector, including the flash lamp being sequentially connected with, eyeglass cover plate, camera lens column, lens base, camera lens adapter ring and camera lens, described lens cover plate includes annular base plate and is arranged on Fresnel sheet and the speckle sheet of described annular base plate both sides, described speckle sheet is carved with speckle pattern.Digital speckle projector of the present utility model, it is capable of the throwing speckle demand of the special measurand such as accurate device, human body surface, can be with oriented control texture fine degree, instantaneous can realize automatization and throw speckle, throwing speckle picture quality can adjust in real time, three-dimensional digital based on the speckle characteristics reconstruction for industrial products or even special measurand provides a kind of automation equipment.
Description
Technical field
This utility model relates to technical field of optical device manufacturing, is specifically related to a kind of digital speckle projector.
Background technology
Speckle characteristics three-dimensional reconstruction based on loading by means of digital image correlation method, is widely used to the mechanics of materials, the lossless inspection of optics
The fields such as survey.
Prior art is when manufacturing speckle image, first at test specimen (such as sheet metal component) surface air brushing white primer, then
Select pitch-dark air brushing random speckle, finally utilize camera shooting test specimen surface to obtain digital speckle image.The method needs
By speckle preparations such as paint, air brushing process needs manual operation, there is inflammable, explosive, gas defence, and the fine journey of speckle pattern
The problem that degree error is big, processed the speckle used time is longer, automaticity is low.What is more important limits the occasion of air brushing for some,
Such as the measurand such as accurate device, human body, the method is the most applicable.
Utility model content
In view of this, this utility model provides a kind of digital speckle projector, to solve prior art speckle pattern precision
Low, throw speckle time length, problem that automaticity is low.
This utility model solves the problems referred to above by techniques below means:
A kind of digital speckle projector, including the flash lamp being sequentially connected with, eyeglass cover plate, camera lens column, lens base, mirror
Head adapter ring and camera lens, described eyeglass cover plate includes annular base plate and the Fresnel sheet being arranged on described annular base plate both sides and dissipates
Patch, described speckle sheet is carved with speckle pattern；
Wherein, described Fresnel sheet is arranged on described flash lamp side；Described annular base plate include integrated outer shroud and
Internal ring, described outer ring thickness is more than or equal to described Fresnel sheet thickness, described inner ring thicknesses and described speckle sheet thickness sum.
Further, described camera lens column includes horizontal bottom and vertical, with described speckle sheet pair on described vertical
Position is answered to be provided with through hole.
Further, described lens base is annular, and described lens base is connected side and is provided with interior with described camera lens adapter ring
Screw thread, described camera lens adapter ring both sides are provided with external screw thread, and described camera lens side is provided with female thread.
Further, described eyeglass cover plate is connected with described flash lamp by screw, described camera lens column pass through screw and
Described eyeglass cover plate connects, and described lens base is connected with described camera lens column by screw.
The digital speckle projector that this utility model provides, compared to prior art, has the advantages that
1, this utility model uses optical imaging modalities, it is not necessary to air brushing speckle, nontoxic.
2, used by this utility model, the speckle pattern of speckle sheet is formed by computer drawing, the orientation control of texture fineness
System, speckle sheet can be reused.
3, this utility model throwing speckle time depends primarily on the flash lamp stroboscopic time, all up to 0.1s, is greatly shortened speckle processed
Time.
4, the light and shade of the thrown speckle image of this utility model and readability, can be adjusted by the shutter of camera lens and focal length
Joint, improves the suitability.
5, this utility model is because using optical non-contact to throw spot method, therefore can be to the spy such as accurate device, human body surface
Very require that object carries out throwing speckle.
6, the projection of this utility model speckle pattern uses soft triggering to control, it is achieved speckle operation is thrown by automatization.
7, this utility model volume is little, and cost is relatively low, has preferable practical value.
Accompanying drawing explanation
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of this utility model digital speckle projector；
Fig. 2 is the structural representation of this utility model eyeglass cover plate；
Wherein, 1-flash lamp, 2-eyeglass cover plate, 21-Fresnel sheet, 22-annular base plate, 221-internal ring, 222-outer shroud,
23-speckle sheet, 3-camera lens column, 31-horizontal bottom, 32-vertical, 4-lens base, 5-camera lens adapter ring, 6-camera lens.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below to the technology in this utility model
Scheme carries out clear, complete description, it is clear that described embodiment is a part of embodiment of this utility model rather than complete
The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work
Under premise, the every other embodiment obtained, broadly fall into the scope of this utility model protection.
Seeing Fig. 1-Fig. 2, this utility model provides a kind of digital speckle projector, as it is shown in figure 1, include being sequentially connected with
Flash lamp 1, eyeglass cover plate 2, camera lens column 3, lens base 4, camera lens adapter ring 5 and camera lens 6, described eyeglass cover plate 2 includes ring
Shape substrate 2-2 and the Fresnel sheet 21 and the speckle sheet 23 that are arranged on described annular base plate 2-2 both sides, described Fresnel sheet 21 is arranged
In described flash lamp 1 side.It is carved with speckle pattern on described speckle sheet 23.
It is also preferred that the left described speckle sheet 23 includes glass lens and the speckle pattern being carved on described sheet glass, wherein, mirror
Head adapter ring 5 can arrange one or more according to specific needs.
Concrete, described annular base plate 22 includes integrated outer shroud 221 and internal ring 222, and described outer shroud 221 thickness is big
In equal to described Fresnel sheet 21 thickness, described internal ring 222 thickness and described speckle sheet 23 thickness sum.As such, it is possible to by phenanthrene
Nie Er sheet 21 and speckle sheet 23 are arranged in annular base plate 22, and by set the thickness of internal ring 222 ensure Fresnel sheet 21 with
Distance between speckle sheet 23 is predetermined value.
Described camera lens column 3 includes horizontal bottom 31 and vertical 32, right with described speckle sheet 23 on described vertical 32
Position is answered to be provided with through hole.The light source of flash lamp 1 projection passes from through hole after Fresnel sheet 21, speckle sheet 23.Horizontal bottom
31 can be used for fixing len cover plate 2, and vertical 32 can be used for fixed lens base 4.
Described eyeglass cover plate 2 is connected with described flash lamp 1 by screw, and described camera lens 6 column is by screw and described mirror
Sheet cover plate 2 connects, and described lens base 4 is connected with described camera lens column 3 by screw.Described lens base 4 is annular, described
Lens base 4 is connected side and is provided with female thread with described camera lens adapter ring 5, and described camera lens adapter ring 5 both sides are provided with external screw thread, described
Camera lens 6 side is provided with female thread.Thus, described lens base 4 can be connected with described camera lens adapter ring 5 by screw thread, described
Camera lens adapter ring 5 can be connected with described camera lens 6 by screw thread.
During work, by described flash lamp 1 external 220V alternating current, described flash lamp 1 is provided with triggering interface, real in order to user
Existing soft triggering controls.Described flash lamp 1 passes through capacitor charge and discharge, it is provided that instant light, and described Fresnel sheet 21 is by flash lamp 1
Diverging light is converted to directional light, and directional light projects speckle by described speckle sheet 23 to human body surface, transfers by adjusting camera lens
The quantity of ring 5 changes the distance between Fresnel sheet 21 and camera lens 6, makes to be imaged on camera lens 6 through the speckle image of Fresnel sheet 21
Field depth in, described camera lens 6 by regulation shutter make speckle image have suitable brightness, make speckle by focusing
Image imaging clearly.
The digital speckle projector that this utility model provides, compared to prior art, has the advantages that
1, this utility model uses optical imaging modalities, it is not necessary to air brushing speckle, nontoxic.
2, used by this utility model, the speckle pattern of speckle sheet is formed by computer drawing, the orientation control of texture fineness
System, speckle sheet can be reused.
3, this utility model throwing speckle time depends primarily on the flash lamp stroboscopic time, all up to 0.1s, is greatly shortened speckle processed
Time.
4, the light and shade of the thrown speckle image of this utility model and readability, can be adjusted by the shutter of camera lens and focal length
Joint, improves the suitability.
5, this utility model is because using optical non-contact to throw spot method, therefore can be to the spy such as accurate device, human body surface
Very require that object carries out throwing speckle.
6, the projection of this utility model speckle pattern uses soft triggering to control, it is achieved speckle operation is thrown by automatization.
7, this utility model volume is little, and cost is relatively low, has preferable practical value.
Finally illustrating, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although ginseng
According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from objective and the model of technical solutions of the utility model
Enclosing, it all should be contained in the middle of right of the present utility model.
Claims (4)
1. a digital speckle projector, it is characterised in that include the flash lamp being sequentially connected with, eyeglass cover plate, camera lens column, mirror
Head base, camera lens adapter ring and camera lens, described eyeglass cover plate includes annular base plate and is arranged on the phenanthrene of described annular base plate both sides
Nie Er sheet and speckle sheet, described speckle sheet is carved with speckle pattern；
Wherein, described Fresnel sheet is arranged on described flash lamp side；Described annular base plate includes integrated outer shroud and internal ring,
Described outer ring thickness is more than or equal to described Fresnel sheet thickness, described inner ring thicknesses and described speckle sheet thickness sum.
Digital speckle projector the most according to claim 1, it is characterised in that described camera lens column include horizontal bottom and
Vertical, described vertical is provided with through hole with described speckle sheet correspondence position.
Digital speckle projector the most according to claim 1, it is characterised in that described lens base is annular, described mirror
Head base is connected side and is provided with female thread with described camera lens adapter ring, and described camera lens adapter ring both sides are provided with external screw thread, described camera lens
Side is provided with female thread.
Digital speckle projector the most according to claim 3, it is characterised in that described eyeglass cover plate passes through screw with described
Flash lamp connects, and described camera lens column is connected with described eyeglass cover plate by screw, and described lens base passes through screw with described
Camera lens column connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620544933.1U CN205844724U (en) | 2016-06-07 | 2016-06-07 | A kind of digital speckle projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620544933.1U CN205844724U (en) | 2016-06-07 | 2016-06-07 | A kind of digital speckle projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205844724U true CN205844724U (en) | 2016-12-28 |
Family
ID=57622954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620544933.1U Active CN205844724U (en) | 2016-06-07 | 2016-06-07 | A kind of digital speckle projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205844724U (en) |
-
2016
- 2016-06-07 CN CN201620544933.1U patent/CN205844724U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |