CN209991949U - Lens angle detection tool among optical device - Google Patents
Lens angle detection tool among optical device Download PDFInfo
- Publication number
- CN209991949U CN209991949U CN201920452888.0U CN201920452888U CN209991949U CN 209991949 U CN209991949 U CN 209991949U CN 201920452888 U CN201920452888 U CN 201920452888U CN 209991949 U CN209991949 U CN 209991949U
- Authority
- CN
- China
- Prior art keywords
- lens
- plano
- convex lens
- optical device
- convex
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 41
- 238000003384 imaging method Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to the technical field of optical device detection tools, in particular to a lens angle detection tool in an optical device, which comprises a plano-convex lens, a laser positioned at the focus of the plano-convex lens, a glass sheet inclined between the plano-convex lens and the laser, and a wedge-shaped glass block positioned on one side of the convex surface of the plano-convex lens; the inclined plane of the wedge-shaped glass block faces the convex surface of the plano-convex lens, the back face of the wedge-shaped glass block is back to the convex surface of the plano-convex lens, and the inclined plane is parallel to the plane of the plano-convex lens; and the imaging lens is arranged symmetrically to the laser relative to the glass sheet. An object of the present invention is to provide a lens angle detection tool in optical device, adopt the utility model provides a technical scheme has solved the technical problem that the angle of inclination of the glass lens among the current optical device can't effectively detect.
Description
Technical Field
The utility model relates to an optical device detection tool technical field especially relates to a lens angle detection tool among optical device.
Background
In the manufacturing and production of devices in the optical communication industry, a large number of glass lenses such as filters, optical wedges and the like exist, and if the glass lenses are inclined at small angles, the product quality, the performance and the customer satisfaction are influenced.
Usually, the naked eye cannot distinguish whether the inclination angle is within the qualified range, and the glass lens packaged in the device cannot be judged, for example, the lens packaged in a steel tube with the inner wall diameter of only 32mm cannot be directly judged whether the inclination angle is flat or not and the size of the inclination angle. Therefore, the method of visual inspection by human eyes cannot be applied to the production process of optical devices.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a lens angle detection tool in optical device, adopt the utility model provides a technical scheme has solved the technical problem that the angle of inclination of the glass lens among the current optical device can't effectively detect.
In order to solve the technical problem, the utility model provides a lens angle detection tool in optical device, including plano-convex lens, the laser instrument that is located the focus of plano-convex lens, the glass piece that inclines between plano-convex lens and laser instrument, and the wedge glass piece that is located the convex surface one side of plano-convex lens; the inclined plane of the wedge-shaped glass block faces the convex surface of the plano-convex lens, the back face of the wedge-shaped glass block is back to the convex surface of the plano-convex lens, and the inclined plane is parallel to the plane of the plano-convex lens; and the imaging lens is arranged symmetrically to the laser relative to the glass sheet.
Preferably, the device also comprises a pipeline with an L-shaped channel inside; the glass sheet is positioned at the corner of the pipeline; the plano-convex lens and the wedge-shaped glass block are positioned in one channel of the pipeline, and the imaging lens is positioned in the other channel of the pipeline.
Preferably, an installation pipe for sleeving the optical device is formed at one end of the pipe on the wedge-shaped glass block in an extending manner.
Preferably, a reading microscope is also included; the imaging lens forms the eyepiece of the reading microscope.
From the above, use the utility model discloses can obtain following beneficial effect: the laser emitted by the laser and the laser reflected by the optical device are interfered by the plano-convex lens and the wedge-shaped glass block, and the lens offset angle of the optical device can be detected by observing interference fringes, so that the detection technical index and the production detection efficiency are improved; the inclination angle of the filter plate is calculated by measuring the distance between the stripes and the wavelength of the light source, so that the angle measurement error is greatly reduced; whether the filter plates packaged in the pipe fitting are damaged or not and dirt can be judged through the stripes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a schematic view of an optical path structure according to an embodiment of the present invention;
fig. 4 is a schematic view of a display condition at an imaging lens according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second display condition at the imaging lens according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a display condition at the imaging lens according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the existing optical device production process, whether the inclination angle of a lens in the optical device is in a qualified range cannot be distinguished by naked eyes, and the method for visual inspection by human eyes cannot be applied to the production and processing of the optical device.
Referring to fig. 1-2, to solve the above technical problem, the present embodiment provides a lens angle detection fixture in an optical device, including a plano-convex lens 10, a laser 20, a glass sheet 30, and a wedge-shaped glass block 40.
Specifically, the laser 20 is located at the focal point of the plano-convex lens 10, the glass sheet 30 is obliquely arranged between the plano-convex lens and the laser 20, and the wedge-shaped glass block 40 is located on the convex side of the plano-convex lens 10. Wherein, the inclined plane of the wedge-shaped glass block 40 faces the convex surface of the plano-convex lens 10; the back of the wedge-shaped glass block 40 faces away from the convex surface of the plano-convex lens 10 and is parallel to the plane of the plano-convex lens 10.
In order to facilitate the observation of the detection result by the staff, the present embodiment further includes an imaging lens 50 disposed symmetrically with respect to the glass sheet 30 with respect to the laser 20. Preferably, the reading microscope is further included, and the imaging lens 50 forms an eyepiece of the reading microscope.
In order to facilitate the staff to take this lens angle detection tool, this embodiment still includes the inside pipeline that is L font passageway. Wherein glass sheet 30 is located at the break of the pipe; the plano-convex lens 10 and wedge-shaped glass block 40 are located in one channel of the tunnel and the imaging lens 50 is located in the other channel of the tunnel.
An installation pipe for sleeving the optical device can also be formed at one end of the pipe on the wedge-shaped glass block 40 in an extending manner.
Referring to fig. 3, S is the laser 20, O is the interference fringe of the display system of the imaging lens 50, L is the plano-convex lens 10, G1 is the wedge-shaped glass block 40, and G2 is the lens in the device under test. In the embodiment, whether the surface of G2 is parallel to G1 is judged by observing the interference fringes of the O point, and the inclination angle of the filter is rapidly calculated by the fringe spacing and the wavelength of the light source. The laser is used as a light source, and the interference fringe brightness is high, so that the contrast is good, the measurement precision is improved, and the measurement range is enlarged.
The working principle of the lens angle detection jig provided by the embodiment is as follows:
s is positioned at the focus of L, and the light beam emitted by S passes through the glass sheet 30 and then passes through L to collimate the light; when the collimated light beams are projected to G1 and G2, because G1 is the wedge-shaped glass block 40, there is a small wedge angle, so that the reflected light beams from the upper surface and the lower surface are separated, and the reflected light beams from the upper surface are shifted out of the field of view, and the interference result of the two reflected light beams is not affected, and the reflected light beams from the lower surface of G1 and the inclined surface of G2 are reflected by the glass sheet 30 and converged at one point to form interference fringes.
Therefore, the interference fringes formed at the imaging lens 50 are classified into the following three cases for different optical devices:
firstly, if the imaging lens 50 is a color, the lens of the optical device is judged to be flat, and the light rays do not interfere at the imaging lens 50, please refer to fig. 4;
if interference fringes are formed at the imaging lens 50, it is determined that the lens of the optical device is tilted, light rays interfere at the imaging lens 50, and the denser the interference fringes, the larger the tilt angle of the lens, please refer to fig. 5;
thirdly, if there is a protrusion or a depression in the interference fringes formed at the imaging lens 50, it is determined that there is a foreign matter or a damage on the lens of the optical device, please refer to fig. 6.
In the second case, the fringe distance d can be measured by a reading microscope, and the tilt angle of the optical device lens can be calculated by the following formula:
where n is the refractive index of the lens under test.
In summary, the lens angle detection jig provided by the embodiment of the utility model uses the plane interference principle, and only three steps of inserting, seeing and pulling are needed to complete the detection when detecting the lens angle of the optical device, so that the detection is simple, convenient and time-saving, and the detection technical index and the production detection efficiency are improved; the inclination angle of the filter plate is calculated by measuring the distance between the stripes and the wavelength of the light source, so that the angle measurement error is greatly reduced; whether the filter plates packaged in the pipe fitting are damaged or not and dirt can be judged through the stripes.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (4)
1. The utility model provides a lens angle detection tool among optical device which characterized in that: the device comprises a plano-convex lens, a laser positioned at the focus of the plano-convex lens, a glass sheet obliquely arranged between the plano-convex lens and the laser, and a wedge-shaped glass block positioned on one side of the convex surface of the plano-convex lens; the inclined plane of the wedge-shaped glass block faces the convex surface of the plano-convex lens, the back face of the wedge-shaped glass block is back to the convex surface of the plano-convex lens, and the inclined plane is parallel to the plane of the plano-convex lens; and the imaging lens is arranged symmetrically to the laser relative to the glass sheet.
2. The lens angle detection jig of claim 1, characterized in that: the pipeline is internally provided with an L-shaped channel; the glass sheet is positioned at the corner of the pipeline; the plano-convex lens and the wedge-shaped glass block are positioned in one channel of the pipeline, and the imaging lens is positioned in the other channel of the pipeline.
3. The lens angle detection jig of claim 2, characterized in that: an installation pipeline for sleeving the optical device is formed at one end of the pipeline, which is positioned on the wedge-shaped glass block, in an extending manner.
4. The lens angle detection jig according to any one of claims 1 to 3, characterized in that: a reading microscope is also included; the imaging lens forms the eyepiece of the reading microscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452888.0U CN209991949U (en) | 2019-04-04 | 2019-04-04 | Lens angle detection tool among optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452888.0U CN209991949U (en) | 2019-04-04 | 2019-04-04 | Lens angle detection tool among optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209991949U true CN209991949U (en) | 2020-01-24 |
Family
ID=69291043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920452888.0U Expired - Fee Related CN209991949U (en) | 2019-04-04 | 2019-04-04 | Lens angle detection tool among optical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209991949U (en) |
-
2019
- 2019-04-04 CN CN201920452888.0U patent/CN209991949U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI427286B (en) | Apparatus and method for inspection glass sheets | |
| CN109099859B (en) | Device and method for measuring surface defect three-dimensional morphology of large-caliber optical element | |
| JP3892906B2 (en) | Techniques for detecting three-dimensional defect locations in transparent structures. | |
| JP6174336B2 (en) | A method for distinguishing anomalous spectral profiles from spectral profiles measured with a chromatic range sensor | |
| CN103105403A (en) | Method and device for detecting surface defect of transparent optical component | |
| CN104197848B (en) | Double-frequency differential thickness measurement method and equipment | |
| CN108662993A (en) | A kind of Surface roughness measurement system based on optical scattering principle | |
| CN106403843A (en) | Contour scanning measurement device and method for large-aperture high-curvature optical element based on confocal microscopy | |
| JP2017502295A (en) | Non-imaging coherent line scanner system and optical inspection method | |
| CN203069531U (en) | Device for detecting surface defect of transparent optical element | |
| CN110736721A (en) | Glass plate refractive index uniformity detection device and detection method based on diffraction grating | |
| CN209991949U (en) | Lens angle detection tool among optical device | |
| CN104238071A (en) | F-theta optical lens and laser processing system | |
| CN106018432A (en) | Large-size optical lens surface quality detection method and system | |
| CN113624158A (en) | Visual dimension detection system and method | |
| CN202221493U (en) | Large-aperture parallel light beam expanding device | |
| CN201757320U (en) | Optical lighting system and non-contact measuring device | |
| CN110044280B (en) | Laser triangulation thickness gauge adopting side focal line method and method | |
| CN111060293A (en) | Focal length testing device | |
| CN108151674B (en) | Method and device for improving precision of optical detection instrument | |
| CN105890872A (en) | Large-core-diameter optical fiber end surface detection method and device | |
| CN113483692B (en) | Hole detection optical system | |
| JP2010055022A (en) | Optical performance evaluation method for progressive refracting power lens | |
| CN105938107B (en) | A kind of automatic optics inspection focusing localization method | |
| CN108445021A (en) | Microstructured prisms lens quality detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210427 Address after: No. 518, Yunji Avenue, Hengnan County, Hengyang City, Hunan Province Patentee after: HUNAN ZHONGKE PHOTOELECTRIC Co.,Ltd. Address before: No. 239, Yunji Avenue, Yunji Industrial Park, Hengnan County, Hengyang City, Hunan Province Patentee before: HENGYANG ZHONGKE PHOTOELECTRON Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200124 |