CN208334135U - A kind of non-contact measurement camera - Google Patents
A kind of non-contact measurement camera Download PDFInfo
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- CN208334135U CN208334135U CN201820769099.5U CN201820769099U CN208334135U CN 208334135 U CN208334135 U CN 208334135U CN 201820769099 U CN201820769099 U CN 201820769099U CN 208334135 U CN208334135 U CN 208334135U
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- lens
- reflective mirror
- camera
- contact measurement
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Abstract
The utility model discloses a kind of non-contact measurement cameras, including single-lens reflex camera fuselage and camera lens, it include that main reflective mirror, secondary reflective mirror, Fresnel focusing screen, collector lens, pentaprism, framing eyepiece, shutter, photosensitive-member and display screen, the photosensitive-member paste transparent film ruler on portrait attachment one side in the single-lens reflex camera fuselage.The beneficial effects of the utility model are: shoot to the crack on measured object surface the size in simultaneously real-time measurement crack, it is accurate that measurement facilitates when object distance is equal to lens focus twice.
Description
Technical field
The utility model relates to a kind of camera, especially a kind of non-contact measurement camera, for measured object surface
The features such as crack carry out precise measurement, belong to detection instrument technical field.
Background technique
In construction project detection, some building facilities and highway bridge, whether steel construction or concrete structure, all
Phenomena such as crack can occur in construction use process.In order to detect these cracks, conventional means is pacified on unmanned plane at present
Remote control shooting device is filled, is made that tremendous contribution for the promotion of work efficiency.But current detection is all simple shooting, not
The size for capableing of fracture does an accurate measurement.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, a kind of non-contact measurement camera is provided,
Common slr camera is subjected to appropriate reconstruction, makes it can also fracture progress precise measurement while shooting.
The first technical solution that the utility model uses: a kind of non-contact measurement camera, including single-lens reflex camera fuselage and mirror
Head, include in the single-lens reflex camera fuselage main reflective mirror, secondary reflective mirror, Fresnel focusing screen, collector lens, pentaprism, framing eyepiece,
Shutter, photosensitive-member and display screen, the photosensitive-member paste transparent film ruler on portrait attachment one side.
Using the technical program, just film ruler is added in image in photosensitive-member imaging.When using the utility model,
It needs to guarantee that object distance is equal to twice of lens focus, the actual size size that size dimension is equal to testee is at this moment imaged, shows
The image presented in display screen is exactly the photograph that is overlapped of measured object with transparent film ruler, directly can accurately read quilt after enlarged drawing
Survey accurate scale of the object on transparent film ruler.
Second of technical solution that the utility model uses: a kind of non-contact measurement camera, including single-lens reflex camera fuselage and mirror
Head, include in the single-lens reflex camera fuselage main reflective mirror, secondary reflective mirror, Fresnel focusing screen, collector lens, pentaprism, framing eyepiece,
Shutter, photosensitive-member and display screen, by being programmed in object distance on SDK platform equal to twice of lens focus on the display screen
When be formed by the transparent film ruler that full size is shown on original image.When using the utility model, a technical side is kept up with
Case is the same, needs to guarantee that object distance is equal to twice of lens focus, and the actual size that size dimension is equal to testee is at this moment imaged
Size, it is also identical with actual size size by the size of the film ruler that is presented on programming Control display screen on this image,
To realize be overlapped photograph of the measured object with transparent film ruler, testee directly can be accurately read after enlarged drawing transparent
Accurate scale on film ruler.
Preferably, the transparent film ruler includes several circle concentric polygon graduated scales, biggish polygon graduated scale
The smaller polygon graduated scale of number of edges is more, the minimum micron of each edge scale unit of every circle polygon graduated scale, most
Greatly millimeter.Further preferably, the three circle concentric polygon graduated scale of transparent film ruler setting, every edge lengths of inner ring are
1mm, scale unit 0.1mm, every edge lengths of centre circle are 2mm, and scale unit 0.05mm, every edge lengths of outer ring are 3mm,
Scale unit is 0.02mm.This preferably clear film ruler is suitble to the crack of all directions, does not need to rotate frequently in shooting process
Camera.
Tight shot is all made of in above two technical solution.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are: can be equal in object distance
When lens focus twice, the crack on measured object surface shoot and the size in real-time measurement crack, measurement facilitate standard
Really.
Detailed description of the invention
Fig. 1 is principle schematic diagram of the invention.
Marked in the figure: 1 is camera lens, 2 be main reflective mirror, and 3 be secondary reflective mirror, and 4 be Fresnel focusing screen, and 5 be collector lens,
6 be pentaprism, and 7 be framing eyepiece, and 8 be shutter, and 9 be transparent film ruler, and 10 be photosensitive-member.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
Embodiment 1:
As shown in Figure 1, a kind of non-contact measurement camera, including single-lens reflex camera fuselage and camera lens 1, include in the single-lens reflex camera fuselage
Main reflective mirror 2, secondary reflective mirror 3, Fresnel focusing screen 4, collector lens 5, pentaprism 6, framing eyepiece 7, shutter 8, photosensitive-member
10 and display screen, the photosensitive-member 10 pastes transparent film ruler 9 on 1 one side of portrait attachment.
The three circle concentric polygon graduated scale of the transparent setting of film ruler 9, every edge lengths of inner ring are 1mm, scale unit
For 0.1mm, every edge lengths of centre circle are 2mm, and every edge lengths of scale unit 0.05mm, outer ring are 3mm, and scale unit is
0.02mm。
Embodiment 2:
A kind of non-contact measurement camera, including single-lens reflex camera fuselage and camera lens 1, include in the single-lens reflex camera fuselage main reflective mirror 2,
Secondary reflective mirror 3, Fresnel focusing screen 4, collector lens 5, pentaprism 6, framing eyepiece 7, shutter 8, photosensitive-member 10 and display
Shield, is formed by original image when on the display screen by being programmed in object distance on SDK platform equal to twice of lens focus
Show the transparent film ruler 9 of full size.
The three circle concentric polygon graduated scale of the transparent setting of film ruler 9, every edge lengths of inner ring are 1mm, scale unit
For 0.1mm, every edge lengths of centre circle are 2mm, and every edge lengths of scale unit 0.05mm, outer ring are 3mm, and scale unit is
0.02mm。
Claims (4)
1. a kind of non-contact measurement camera, including single-lens reflex camera fuselage and camera lens (1), the interior single-lens reflex camera fuselage includes main reflective mirror
(2), secondary reflective mirror (3), Fresnel focusing screen (4), collector lens (5), pentaprism (6), framing eyepiece (7), shutter (8), sense
Light component (10) and display screen, it is characterised in that: the photosensitive-member (10) pastes transparent phenanthrene on portrait attachment (1) one side
Woods ruler (9).
2. a kind of non-contact measurement camera, including single-lens reflex camera fuselage and camera lens (1), the interior single-lens reflex camera fuselage includes main reflective mirror
(2), secondary reflective mirror (3), Fresnel focusing screen (4), collector lens (5), pentaprism (6), framing eyepiece (7), shutter (8), sense
Light component (10) and display screen, it is characterised in that: by being programmed in object distance on SDK platform equal to twice on the display screen
The transparent film ruler (9) that full size is shown on original image is formed by when lens focus.
3. a kind of non-contact measurement camera according to claim 1 or 2, it is characterised in that: the transparent film ruler (9)
Including several circle concentric polygon graduated scales, the smaller polygon graduated scale of biggish polygon graduated scale number of edges is more, every circle
The minimum micron of each edge scale unit of the polygon graduated scale, is up to millimeter.
4. a kind of non-contact measurement camera according to claim 3, it is characterised in that: the transparent film ruler (9) sets
Three circle concentric polygon graduated scales are set, every edge lengths of inner ring are 1mm, and every edge lengths of scale unit 0.1mm, centre circle are
2mm, scale unit 0.05mm, every edge lengths of outer ring are 3mm, scale unit 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769099.5U CN208334135U (en) | 2018-05-23 | 2018-05-23 | A kind of non-contact measurement camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769099.5U CN208334135U (en) | 2018-05-23 | 2018-05-23 | A kind of non-contact measurement camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208334135U true CN208334135U (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820769099.5U Active CN208334135U (en) | 2018-05-23 | 2018-05-23 | A kind of non-contact measurement camera |
Country Status (1)
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| CN (1) | CN208334135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717037A (en) * | 2018-05-23 | 2018-10-30 | 四川为天建设工程检测有限公司 | A kind of non-contact measurement camera |
-
2018
- 2018-05-23 CN CN201820769099.5U patent/CN208334135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717037A (en) * | 2018-05-23 | 2018-10-30 | 四川为天建设工程检测有限公司 | A kind of non-contact measurement camera |
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