CN212546901U - Eye feature detection equipment - Google Patents
Eye feature detection equipment Download PDFInfo
- Publication number
- CN212546901U CN212546901U CN202022153212.7U CN202022153212U CN212546901U CN 212546901 U CN212546901 U CN 212546901U CN 202022153212 U CN202022153212 U CN 202022153212U CN 212546901 U CN212546901 U CN 212546901U
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- China
- Prior art keywords
- imaging lens
- fixing frame
- head
- subject
- head fixing
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000003384 imaging method Methods 0.000 claims abstract description 46
- 210000003128 head Anatomy 0.000 claims description 56
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 210000001061 forehead Anatomy 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 2
- 210000001508 eye Anatomy 0.000 description 7
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- Eye Examination Apparatus (AREA)
Abstract
An eye feature detection device comprises a head fixing frame, a laser, a first imaging lens, a second imaging lens and a control center; the head fixing frame can rotate; the first imaging lens is arranged right in front of the head fixing frame; the laser is arranged in front of the head fixing frame; the laser can emit positioning light rays towards the direction parallel to the face of the subject; the second imaging lens is arranged on two sides of the head fixing frame; the control center is connected with the head fixing frame, the laser, the first imaging lens and the second imaging lens. Compared with the prior art, the invention can eliminate errors caused by the head deflection of the subject.
Description
Technical Field
The invention relates to the field of ophthalmologic detection, in particular to an eye feature detection device.
Background
The existing instrument for testing the eyeball protrusion degree obtains a side image of the head of a subject through an imaging device to calculate the eyeball protrusion degree. The slight deflection of the subject's head can cause the image acquired by the imaging device to have a large error.
Disclosure of Invention
The invention provides an eye feature detection device aiming at the defects of the prior art, which can eliminate errors caused by head deflection of a subject.
An eye feature detection device comprises a head fixing frame, a laser, a first imaging lens, a second imaging lens and a control center, wherein the head fixing frame is rotatable; the first imaging lens is arranged right in front of the head fixing frame; the laser is arranged in front of the head fixing frame; the laser can emit positioning light rays towards the direction parallel to the face of the subject; the second imaging lens is arranged on two sides of the head fixing frame; the control center is connected with the head fixing frame, the laser, the first imaging lens and the second imaging lens, when in detection, the head of the subject is fixed on the head fixing frame, the laser emits positioning light, the first imaging lens shoots a front image of the head of the subject and sends the front image to the control center, the control center controls the head fixing frame to drive the head of the subject to rotate according to the front image so that the nose tip of the subject is irradiated by the positioning light, and then the control center controls the second imaging lens to shoot a side image of the head of the subject.
Compared with the prior art, the invention emits the positioning light by arranging the laser, and controls the head fixing frame to drive the head of the testee to rotate, so that the nose tip of the testee is irradiated by the positioning light, thereby eliminating the error caused by the deflection of the head of the testee.
Drawings
Fig. 1 is an external view of an eye feature detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the use of the embodiment of FIG. 1;
the figure includes: the device comprises a head fixing frame 1, a laser 2, a positioning light 21, a first imaging lens 3, a second imaging lens 4, a right-angle prism 5, a rotating base 6, a forehead support 7, a jaw support 8, a fixed base 9, a displacement platform 10 and a mounting rod 11.
Detailed Description
As shown in the drawings, an embodiment of the present invention provides an eye feature detection apparatus, which includes a head holder 1, a laser 2, a first imaging lens 3, a second imaging lens 4, and a control center. The head fixing frame 1 can rotate; the first imaging lens 3 is arranged right in front of the head fixing frame 1; the laser 2 is arranged on the head fixing frame 1 in the front direction; the laser 2 can emit positioning light 21 towards the right front of the head fixing frame 1; the second imaging lens 4 is arranged at two sides of the head fixing frame 1; the control center is connected with the head fixing frame 1, the laser 2, the first imaging lens 3 and the second imaging lens 4. During detection, the head of a subject is fixed on the head fixing frame 1, the laser 2 emits positioning light, the first imaging lens 3 shoots a front image of the head of the subject and sends the front image to the control center, and the control center controls the head fixing frame 1 to drive the head of the subject to rotate according to the front image so that the nose tip of the subject is irradiated by the positioning light 21; then, the control center controls the second imaging lens 4 to capture the lateral image of the head of the subject and according to the temporal side of the subject in the lateral imageOrbital marginThe distance to the corneal vertex calculates the subject's eyeball protrusion.
The second imaging lens 4 is provided with a right-angle prism 5; one right-angle surface of the right-angle prism 5 is arranged corresponding to the second imaging lens 4, and the other right-angle surface is opposite to the side surface of the head of the subject. By providing the right-angle prism 5, the second imaging lens 4 is compactly arranged on both sides of the head mount 1, saving space.
The second imaging lens 4 is a telecentric lens. The telecentric lens has unchanged magnification in a certain object distance range, so that temporo side of the subject can be prevented from being affectedOrbital marginAnd imaging errors caused by the different distances from the corneal vertex to the lens.
The bottom of the head fixing frame 1 is provided with a rotating base 6, and the control center controls the head fixing frame 1 to rotate relative to the rotating base 6.
The head mount 1 is provided with a forehead support 7 and a jaw support 8, the forehead support 7 and the jaw support 8 are used for keeping the head of the subject in a vertical direction, so that the positioning light 21 emitted by the laser 2 is parallel to the face of the subject.
The height of the jaw support 8 is adjustable. The height of the jaw support 8 is adjusted to make the jaw support 8 tightly attached to the lower jaw of the subject so as to match the face length of different subjects.
The eye feature detection device further comprises a fixed base 9; the fixed base 9 is provided with a displacement platform 10, and the first imaging lens 3 is arranged on the displacement platform 10. After the head of the subject is fixed on the head fixing frame 1, the first imaging lens 3 can obtain a clear face image of the subject by moving the displacement platform 10 to adjust the distance between the first imaging lens 3 and the face of the subject.
The top of the displacement platform 10 is provided with a mounting rod, and the laser 2 is slidably arranged on the mounting rod 11. Different subjects have different facial weights, and sliding the laser 2 to different positions on the mounting bar 11 causes the positioning light 21 emitted by the laser 2 to impinge exactly on the nose of the subject.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. The utility model provides an eye characteristic check out test set, includes head mount, laser instrument, first imaging lens, second imaging lens and control center, its characterized in that: the head fixing frame can rotate; the first imaging lens is arranged right in front of the head fixing frame; the laser is arranged in front of the head fixing frame; the laser can emit positioning light rays towards the direction parallel to the face of the subject; the second imaging lens is arranged on two sides of the head fixing frame; the control center is connected with the head fixing frame, the laser, the first imaging lens and the second imaging lens; during detection, the head of a subject is fixed on the head fixing frame, the laser emits positioning light, the first imaging lens shoots a front image of the head of the subject and sends the front image to the control center, the control center controls the head fixing frame to drive the head of the subject to rotate according to the front image so that the nose tip of the subject is irradiated by the positioning light, and then the control center controls the second imaging lens to shoot a side image of the head of the subject.
2. The eye feature detection device according to claim 1, characterized in that: the second imaging lens is provided with a right-angle prism; one right-angle surface of the right-angle prism is arranged corresponding to the second imaging lens, and the other right-angle surface of the right-angle prism is opposite to the side surface of the head of the subject.
3. The eye feature detection device according to claim 1, characterized in that: the second imaging lens is a telecentric lens.
4. The eye feature detection device according to claim 1, characterized in that: the bottom of the head fixing frame is provided with a rotating base.
5. The eye feature detection device according to claim 1, characterized in that: the head fixing frame is provided with a forehead support and a jaw support, and the forehead support and the jaw support are used for enabling a testee to keep the head in a vertical direction.
6. The ocular feature detection apparatus according to claim 5, characterized in that: the height of the jaw support is adjustable.
7. The eye feature detection device according to claim 1, characterized in that: the device also comprises a fixed base; a displacement platform is arranged on the fixed base; the first imaging lens is fixed on the displacement platform.
8. The ocular feature detection apparatus according to claim 7, characterized in that: the top of the displacement platform is provided with an installation rod, and the laser is arranged on the installation rod in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022153212.7U CN212546901U (en) | 2020-09-27 | 2020-09-27 | Eye feature detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022153212.7U CN212546901U (en) | 2020-09-27 | 2020-09-27 | Eye feature detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212546901U true CN212546901U (en) | 2021-02-19 |
Family
ID=74622606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022153212.7U Expired - Fee Related CN212546901U (en) | 2020-09-27 | 2020-09-27 | Eye feature detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212546901U (en) |
-
2020
- 2020-09-27 CN CN202022153212.7U patent/CN212546901U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220915 Address after: Room 312, No. 500 Bibo Road, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Baiyi Medical Technology Co.,Ltd. Address before: Room 215, 114 Dushan West Road, Jimei District, Xiamen City, Fujian Province Patentee before: Aojia Huarui (Xiamen) Medical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |