CN201773261U - Spatial resolution testing card - Google Patents
Spatial resolution testing card Download PDFInfo
- Publication number
- CN201773261U CN201773261U CN2010202706026U CN201020270602U CN201773261U CN 201773261 U CN201773261 U CN 201773261U CN 2010202706026 U CN2010202706026 U CN 2010202706026U CN 201020270602 U CN201020270602 U CN 201020270602U CN 201773261 U CN201773261 U CN 201773261U
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- CN
- China
- Prior art keywords
- spatial resolution
- underframe
- face frame
- film sheet
- test card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to a spatial resolution testing card, which is characterized by comprising a transparent film with wire pairs and a solid carrying out mechanical supporting on the film. The film is thinner and more light beams can penetrate into the film; therefore, sufficient light beams can be exposed and the comparison of the wire pairs can be reinforced. The spatial resolution testing card has the characteristics of smart design, reasonable structure and convenience in use and operation, can be widely applied to light-permeable optical imaging equipments, can be used as a testing card for judging the working state of the equipment when being used for adjusting focusing or maintaining, and can be especially suitable for testing digital conversion quality of the medical image and be used for QAQC (quality assurance and quality control) management of daily digitalization.
Description
Technical field:
The utility model belongs to optical field, particularly a kind of spatial resolution test card in order to detection optical imaging system digitized video image quality.
Background technology:
The rapid technological improvement of existing optical imaging apparatus, pixel is more and more higher, and the adjustment of focal length is played most important to the sharpness and the sharpness of imaging.The present test card of selling on the market, it is right just to be printed with black line on white cardboard, in order to the analytic ability of detection mobile optical equipment; and training focusing ability, and for non-mobile device, such as; image reproduction equipment, scanning imagery equipment etc.; the spacing weighing apparatus of its camera lens and imaging object is fixed, need not to adjust focal length in good time, but the course of work; need the not timing focusing to carry out adjustment or monitoring; in order to avoid deviation appears in imaging, for this reason, also need the special detection card.
Summary of the invention:
The purpose of this utility model is that a kind of suitable detection of design focuses the spatial resolution test card that optical device uses.
Technical solutions of the utility model are achieved in that a kind of spatial resolution test card, it is characterized in that comprising the wired right transparent film sheet of a distribution and film sheet is played the solids that mechanics is supported.Film sheet is thinner, and transmissive is crossed more rays, has enough light exposures, the contrast that splicing thread is right.
The solids of described mechanics support is a frame structure, and framework comprises underframe and face frame, in the face frame along with underframe in along coincideing the outer less than the underframe outer; The underframe surface has a concave region that can hold the face frame at least; The outer of film sheet is less than face frame outer.Come clamping film sheet by a framework, be difficult for scratch film sheet, and easy operating and repeated use.
Behind described underframe concave region overlapping successively placement film sheet and the face frame, the surface of face frame and the flush of underframe.
The line that described film sheet distributes is to by areal distribution, and by increasing progressively step by step smoothly or successively decreasing.Make things convenient for sight to observe zone of transition, compare.
The utlity model has and design ingenious, rational in infrastructure, use convenience operation, can be widely used on the light transmission optical imaging apparatus, during as adjustment focusing or maintenance, the test card of judgment device duty, especially be fit to digital medical image conversion Quality Detection usefulness, as QAQC management in the daily digitizing.
Description of drawings:
Below in conjunction with concrete legend the utility model is described further:
Fig. 1 spatial resolution test card schematic perspective view
Fig. 2 spatial resolution test card perspective exploded view
Wherein
1-film sheet 11-line is to the 2-framework
21-underframe 22-face frame 23-concave region
Embodiment:
See figures.1.and.2, the spatial resolution test card, it comprise one distribute wired to 11 transparent film sheet 1, around the film sheet 1 by clamping on a rigidity framework 2; Framework 2 comprises underframe 21 and face frame 22, in the face frame 22 along with underframe 21 in along coincideing the outer less than underframe 21 outers; Underframe 21 surfaces have a concave region 23 that can hold the face frame at least; The outer of film sheet 1 makes it can not be located in the underframe concave region 23 less than face frame 22 outers, on the underframe concave region 23 behind overlapping successively placement film sheet 1 and the face frame 22, and the flush of the surface of face frame 22 and underframe 21, outward appearance is clean and tidy, and face frame 22 is difficult for being swept.
In addition then, the line that film sheet 1 distributes is pressed areal distribution to 11, and by increasing progressively step by step smoothly or successively decreasing, makes things convenient for sight to observe and the comparison imaging effect.
Film sheet is played solids that mechanics supports except that frame structure, can also be straight forming or the framework that cements in edge, film sheet surrounding.
Claims (4)
1. a spatial resolution test card is characterized in that comprising the wired right transparent film sheet of a distribution and film sheet is played the solids that mechanics is supported.
2. spatial resolution test card according to claim 1, the solids that it is characterized in that the mechanics support is a frame structure, framework comprises underframe and face frame, in the face frame along with underframe in along coincideing the outer less than the underframe outer; The underframe surface has a concave region that can hold the face frame at least; The outer of film sheet is less than face frame outer.
3. spatial resolution test card according to claim 1 and 2, it is characterized in that underframe concave region overlapping successively placement film sheet and face frame after, the surface of face frame and the flush of underframe.
4. spatial resolution test card according to claim 1 and 2 is characterized in that line that film sheet distributes to by areal distribution, and by increasing progressively step by step smoothly or successively decreasing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202706026U CN201773261U (en) | 2010-07-26 | 2010-07-26 | Spatial resolution testing card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202706026U CN201773261U (en) | 2010-07-26 | 2010-07-26 | Spatial resolution testing card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773261U true CN201773261U (en) | 2011-03-23 |
Family
ID=43753105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202706026U Expired - Fee Related CN201773261U (en) | 2010-07-26 | 2010-07-26 | Spatial resolution testing card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352706A (en) * | 2015-11-26 | 2016-02-24 | 昆山康泰达电子科技有限公司 | Test standard plate and preparation method thereof |
| CN110434076A (en) * | 2019-08-14 | 2019-11-12 | 江苏特丽亮镀膜科技有限公司 | It is a kind of for the keyboard film to when cleaning the system to feed intake |
-
2010
- 2010-07-26 CN CN2010202706026U patent/CN201773261U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352706A (en) * | 2015-11-26 | 2016-02-24 | 昆山康泰达电子科技有限公司 | Test standard plate and preparation method thereof |
| CN110434076A (en) * | 2019-08-14 | 2019-11-12 | 江苏特丽亮镀膜科技有限公司 | It is a kind of for the keyboard film to when cleaning the system to feed intake |
| CN110434076B (en) * | 2019-08-14 | 2024-04-26 | 江苏特丽亮新材料科技有限公司 | System for be used for keyboard film contrast and clean material of throwing |
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Legal Events
| 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: 20110323 Termination date: 20180726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |