CN202526147U - Portable eyesight tester - Google Patents
Portable eyesight tester Download PDFInfo
- Publication number
- CN202526147U CN202526147U CN2012201823816U CN201220182381U CN202526147U CN 202526147 U CN202526147 U CN 202526147U CN 2012201823816 U CN2012201823816 U CN 2012201823816U CN 201220182381 U CN201220182381 U CN 201220182381U CN 202526147 U CN202526147 U CN 202526147U
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- box body
- lid
- hole
- connecting cylinder
- box
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Abstract
The utility model discloses a portable eyesight tester. The portable eyesight tester is characterized by comprising an eyepiece tube, a connecting cylinder and an observing box which are sequentially connected from the left side to the right side, wherein the observing box comprises a box cover and a box body; a biconvex lens and a single-convex lens which are matched with each other are arranged inside the eyepiece tube from the left side to the right side; a hole is formed on the box body; the connecting cylinder is inserted into the hole and fixed with the box body; an outward bulge is formed at the edge of the box cover; a groove is formed on the outer side surface of the bulge; a limiting screw penetrates through the box body and stretches into the groove to fix the box cover on the box body; a through hole is formed on the box cover; second glass of which the surface is provided with eyesight scale values is arranged on the inner surface of the box cover; the scale values correspond to the through hole in position; and when the box cover rotates, the eyesight scale values can be observed through the eyepiece tube. The portable eyesight tester is simple in structure, small in volume and light in weight, can perform self-test on eyesight within a relatively small range and facilitates the self-test on the eyesight.
Description
Technical field
This utility model relates to a kind of optical instrument.
Background technology
The tradition examination of visual acuity need stand in apart from 5 meters of visual acuity chart, observes 14 row vision values of visual acuity chart successively, though simple, intuitive, for the place size, the requirement of environmental factorss such as light is more, is not easy to the teenager vision of testing oneself.
The utility model content
The purpose of this utility model provides a kind of portable visual acuity somascope.
To achieve these goals; Adopt following technical scheme: a kind of portable visual acuity somascope is characterized in that: said somascope comprises eyepiece stalk, connecting cylinder and the observation box that connects successively from left to right, and observation box comprises lid and box body; Wherein be provided with the biconvex lens that cooperatively interacts, single concavees lens in the eyepiece stalk from left to right; Have the hole on the box body, connecting cylinder inserts in the hole and box body is fixed, and the edge of lid has outside convexity; Protruding outer surface is provided with groove, and stop screw passes box body and stretches in the groove lid is fixed on the box body; Have through hole on the lid, the lid inner surface is provided with second glass that the surface has the vision scale value, and wherein scale value is corresponding with the position of through hole; When lid rotates, can observe the vision scale value through eyepiece stalk.
As further optimization, use in the place of dark for ease, be provided with emitting led in the said box body.
As further optimization, for the ease of focusing, also be provided with focusing drum between said eyepiece stalk and the connecting cylinder, all through being threaded, focusing drum is provided with focusing and ends spiral shell between focusing drum and eyepiece stalk and the connecting cylinder, and focusing only spiral shell is pressed on the outer wall of connecting cylinder.
As further optimization, in order to protect the second inner glass of lid, the outer surface of said lid is provided with first glass.
This utility model is simple in structure, volume is little, in light weight, the oneself that can in small range, carry out vision detects, and has made things convenient for the vision selftest.
Description of drawings
Fig. 1 is the axonometric chart of this utility model;
Fig. 2 is the profile of this utility model.
Among the figure, 1 is first glass, and 2 is stop screw, and 3 is second glass, and 4 is emitting led, and 5 is battery, and 6 is connecting cylinder, and 7 is focusing drum, and 8 for focusing ends spiral shell, and 9 is the glass group, and 10 is eyepiece stalk.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment this utility model is done and to be further described.
As depicted in figs. 1 and 2; A kind of portable visual acuity somascope; Comprise from left to right the eyepiece stalk 10, connecting cylinder 6 and the observation box that connect successively, also be provided with focusing drum 7 between eyepiece stalk and the connecting cylinder, between focusing drum 7 and eyepiece stalk 10 and the connecting cylinder 6 all through being threaded; Focusing drum is provided with focusing and ends spiral shell 8, and focusing ends spiral shell and is pressed on the outer wall of connecting cylinder.Observation box comprises lid and box body; Wherein be provided with the glass group 9 that cooperatively interacts in the eyepiece stalk from left to right, the glass group can have the hole for biconvex lens and the single concavees lens that cooperatively interact on the box body; Connecting cylinder 6 inserts in the hole and box body is fixed; The edge of lid has outside convexity, and protruding outer surface is provided with groove, and stop screw 2 passes box body and stretches in the groove lid is fixed on the box body; Have through hole on the lid, the lid inner surface is provided with second glass 3 that the surface has the vision scale value, and wherein scale value is corresponding with the position of through hole; The outer surface of lid is provided with first glass 1.When lid rotates, can observe the vision scale value through eyepiece stalk 10, be provided with emitting led 4 in the box body.
Be evenly equipped with 14 through holes on the lid; Light is penetrated with the through hole on the lid through first glass 1 to have on graduated second glass 3; Lid can only rotate by original position under the restriction of stop screw 2, and human eye just can be seen the vision symbol on second glass 3 through eyepiece stalk 10.Before this, because the human eye parallax, regulate the distance of focusing drum 7 and second glass 3 before and after needing, make scale value, tightening only spiral shell 8 of focusing then, the fixed focal length position in position the most clearly.Through the rotation lid, 14 vision values can both appear in the visual field successively.Under the extreme case, if ambient light is darker, it is intravital emitting led 4 to open box, just can obtain a good lighting environment.
This utility model is engraved on the optical glass through the vision value is dwindled.Because scale value diminishes, need to use one group of focal length to dwindle onesize glass group and observe it, reach identical test effect.This utility model has effectively been practiced thrift the space, has made things convenient for the inspection of vision.
Claims (4)
1. portable visual acuity somascope; It is characterized in that: said somascope comprises eyepiece stalk, connecting cylinder and the observation box that connects successively from left to right; Observation box comprises lid and box body, wherein is provided with the biconvex lens that cooperatively interacts, single concavees lens in the eyepiece stalk from left to right, has the hole on the box body; Connecting cylinder inserts in the hole and box body is fixed; The edge of lid has outside convexity, and protruding outer surface is provided with groove, and stop screw passes box body and stretches in the groove lid is fixed on the box body; Have through hole on the lid, the lid inner surface is provided with second glass that the surface has the vision scale value, and wherein scale value is corresponding with the position of through hole; When lid rotates, can observe the vision scale value through eyepiece stalk.
2. portable visual acuity somascope as claimed in claim 1 is characterized in that: be provided with emitting led in the said box body.
3. according to claim 1 or claim 2 portable visual acuity somascope; It is characterized in that: also be provided with focusing drum between said eyepiece stalk and the connecting cylinder; Between focusing drum and eyepiece stalk and the connecting cylinder all through being threaded; Focusing drum is provided with focusing and ends spiral shell, and focusing ends spiral shell and is pressed on the outer wall of connecting cylinder.
4. portable visual acuity somascope as claimed in claim 3 is characterized in that: the outer surface of said lid is provided with first glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201823816U CN202526147U (en) | 2012-04-26 | 2012-04-26 | Portable eyesight tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201823816U CN202526147U (en) | 2012-04-26 | 2012-04-26 | Portable eyesight tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202526147U true CN202526147U (en) | 2012-11-14 |
Family
ID=47127355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201823816U Expired - Fee Related CN202526147U (en) | 2012-04-26 | 2012-04-26 | Portable eyesight tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202526147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654708A (en) * | 2013-11-14 | 2014-03-26 | 深圳市莫廷影像技术有限公司 | Handheld vision detecting device and vision detecting method |
| CN109567736A (en) * | 2017-09-28 | 2019-04-05 | 依视路国际公司 | The method that perception measurement device and making uses it to measurement eyesight |
| CN110251066A (en) * | 2013-06-06 | 2019-09-20 | 6超越6视觉有限公司 | Based on the not positive system and method for subjective distance measuring measurement ophthalmic refractive |
-
2012
- 2012-04-26 CN CN2012201823816U patent/CN202526147U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251066A (en) * | 2013-06-06 | 2019-09-20 | 6超越6视觉有限公司 | Based on the not positive system and method for subjective distance measuring measurement ophthalmic refractive |
| CN110251066B (en) * | 2013-06-06 | 2022-05-27 | 6超越6视觉有限公司 | System and method for measuring refractive error of eye based on subjective distance measurement |
| CN103654708A (en) * | 2013-11-14 | 2014-03-26 | 深圳市莫廷影像技术有限公司 | Handheld vision detecting device and vision detecting method |
| CN103654708B (en) * | 2013-11-14 | 2015-10-21 | 深圳市斯尔顿科技有限公司 | A kind of hand-held Vission detector |
| CN109567736A (en) * | 2017-09-28 | 2019-04-05 | 依视路国际公司 | The method that perception measurement device and making uses it to measurement eyesight |
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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: 20121114 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |