CN100427024C - Single-barrel testing scope for eyesight - Google Patents
Single-barrel testing scope for eyesight Download PDFInfo
- Publication number
- CN100427024C CN100427024C CNB2006100465131A CN200610046513A CN100427024C CN 100427024 C CN100427024 C CN 100427024C CN B2006100465131 A CNB2006100465131 A CN B2006100465131A CN 200610046513 A CN200610046513 A CN 200610046513A CN 100427024 C CN100427024 C CN 100427024C
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- cylinder
- sliding cylinder
- sighting target
- central tube
- eyesight
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Abstract
The present invention relates to the technical field of sight optical instruments. The present invention is characterized in that the front end of an inner cavity of a central cylinder is provided with an eyepiece, and the back end is provided with an object lens; the outer surface of the central cylinder is symmetrically provided with a slide way, and a slide groove corresponding to the slide way is arranged in a sliding cylinder; the sliding cylinder is sheathed outside the central cylinder through the slide groove, and the front segment of the slide cylinder is provided with external threads; a rotary cylinder is connected with the sliding cylinder through internal threads of the rotary cylinder, and the front end part of the rotary cylinder is connected with the central cylinder in a relative rotation mode by a regulation clamping ring; the regulation clamping ring is connected with the outer surface in the front segment of the central cylinder; the back segment of the sliding cylinder is connected with a rubber sleeve of a visual target, and the end surface of the sliding cylinder in the rubber sleeve of a visual target is provided with a visual-target board; the outer side surface of the exposed region of the sliding cylinder is provided with a reading graduated scale corresponding to the visual-target board. The present invention has the advantages of simple structure, science, applicability, complete functions, portability and capability of detecting sight at any time and any place, and the present invention can exercise extraocular muscle, relieve asthenopia and protect the health of an eye region.
Description
Technical field
The present invention relates to the optometry Instrument technology field, relate in particular to single-barrel testing scope for eyesight.
Background technology
Testing the visual acuity chart that vision is used in the market, is the printing visual acuity chart mostly, though this kind visual acuity chart has various ways, its common ground must be at fixed-site, than large space with have in the environment of standard visual acuity chart brightness, can carry out eyesight testing.From the main body that gives a test of one's eyesight; when people feel that vision has problem; the side is detected; this its consequence of passive detection; often bring offending influence, if change active detecting into, by objective necessary testing environment by passive detection to Health and Living; but change all movements of selftest everywhere into, that will provide greatest guarantee for people's sight protectio and health.
Summary of the invention
At the deficiencies in the prior art part, the present invention proposes that a kind of volume is little, perfect in shape and function, can carry the single-barrel testing scope for eyesight of selftest.
The present invention adopts following technical scheme to realize.
A kind of single-barrel testing scope for eyesight comprises eyepiece and object lens, it is characterized in that: also comprise central tube, sliding cylinder, rotating cylinder, in its inner chamber of described central tube, be provided with eyepiece by the lining front end, the rear end is provided with object lens; The lateral surface of central tube is arranged with slideway, sliding cylinder is by being connected in the periphery of central tube with the corresponding chute of described slideway, the leading portion of this sliding cylinder is provided with external screw thread, be connected with rotating cylinder by screw thread, this rotating cylinder is by with being threadedly connected to the adjusting snap ring of central tube periphery, can relatively rotate with described central tube to be connected; The rearward end of described sliding cylinder is provided with the sighting target gum cover of its appearance mint-mark pattern, in the inner chamber of this sighting target gum cover, the end of sliding cylinder sighting target panel is set; The revealed position of the lateral surface of described sliding cylinder is provided with and the corresponding reading scale of sighting target panel;
Described object lens are that concavees lens combine;
Protection eyeglass before being provided with before the described eyepiece;
Described sighting target panel is made by transparent material, and position is provided with single E of rolling or landolsring sighting target letter in the middle of it.This letter is according to eye, thing, as the theoretical and existing national visual acuity chart criterion calculation design of relational expression optometry;
Described sighting target panel back is provided with back protection eyeglass;
The leading section of described central tube is provided with the eyepiece gum cover;
Described adjusting collar outer surface is provided with antiskid glue sleeve, this gum cover outside mint-mark pattern.
Compared with prior art the invention has the advantages that: simple in structure, single sighting target and imaging system are combined into one, science is suitable for, perfect in shape and function, easy to carry, can give a test of one's eyesight whenever and wherever possible, accomplish that pathological changes is early known in time to seek medical advice that defendance is healthy.Simultaneously, owing to conveniently often do detected activity, can temper extraocular muscles, alleviating asthenopia, health care eye health.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the A-A profile of front view of the present invention.
Fig. 3 is the location drawing after sliding cylinder of the present invention is drawn out.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
As Fig. 1, Fig. 2, Fig. 3, single-barrel testing scope for eyesight comprises eyepiece 6 and object lens 5, central tube 3, sliding cylinder 10, rotating cylinder 9 in described central tube 3 its inner chambers, are provided with lining 4, by this lining 4, eyepiece 6 is arranged at the front end of central tube 3, object lens 5 are arranged at the rear end of central tube 3; Eyepiece 6 of the present invention is made up of symmetry combination eyepiece.The lateral surface of central tube 3 is arranged with slideway, and sliding cylinder 10 is by being connected in the periphery of central tube 3 with the corresponding chute of described slideway, and sliding cylinder 10 just can be in axial sliding with respect to central tube 3 along slideway like this.The leading portion of this sliding cylinder 10 is provided with external screw thread, is connected with rotating cylinder 9 by screw thread, and this rotating cylinder 9 is by with being threadedly connected to the adjusting snap ring 8 of central tube 3 peripheries, can relatively rotate with described central tube 3 to be connected; By the rotation of rotating cylinder 9, because the relation of lead, sliding cylinder 10 just moves axially along slideway.The rearward end of described sliding cylinder 10 is provided with the sighting target gum cover 13 of its appearance mint-mark pattern, in the inner chamber of this sighting target gum cover 13, the end of sliding cylinder 10 sighting target panel 11 is set; This sighting target panel is made by transparent material, and position is provided with single E of rolling or landolsring sighting target letter in the middle of it.This alphabetical breach is placed, can be with the pattern on the sighting target gum cover 13 as the reference thing.This letter is according to eye, thing, as the theoretical and existing national visual acuity chart criterion calculation design of relational expression optometry; Sighting target panel 11 is to be regulated by endwisely slipping of sliding cylinder 10 with the distance of object lens 5, makes imaging better.The revealed position of the lateral surface of described sliding cylinder is provided with and sighting target panel 11 corresponding reading scale 14; This rule 14 is the variable in distance according to 5 on sighting target panel 11 and object lens, and the theoretical and existing national visual acuity chart standard of eye optometry is converted into expression values and designs and produces.Protection eyeglass 7 before being provided with before the described eyepiece 6.
Described sighting target panel 11 back are provided with back protection eyeglass;
The leading section of described central tube 3 is provided with eyepiece gum cover 1; Described adjustable ring 8 outer surfaces are provided with antiskid glue sleeve 2, these gum cover 2 outside mint-mark patterns.
Operation principle of the present invention: by regulating the distance of 5 on sighting target panel 11 and object lens, object lens 5 will be followed the object-image relation formula sighting target will be become different big or small upright virtual images, and this picture just in time drops within first focus of eyepiece 6.Eyepiece 6 zooms into the upright virtual image with object lens 5 imagings.In the proper certain detection distance that becomes again before eyes of this picture, the sighting target picture is the visual angle to the tangent value of eyes institute subtended angle degree, and the visual angle can be converted into the vision expression values through optical theory and existing national visual acuity chart standard, is reflected on the vision rule, directly reads.
Using method:
During use, hand-held single-barrel testing scope for eyesight keeps eyes to contact naturally with the eyepiece gum cover, does not narrow one's eyes.
Rotate rotating cylinder, sliding cylinder will blow slowly from rotating cylinder and axially skid off, and eyes are seen the sighting target picture, interior in limited inspection distance from dwindling greatly gradually, the vision value is from little increase, when eyes can not read sighting target as opening towards the time, low one grade of vision that the vision value is exactly the measured.
For preventing to guess the vision picture, the pattern on the available sighting target gum cover is done the orientation reference point, judges whether to misread, and on the scene other people also can know whether correct judgment of measured.Misread then low one grade of vision that the vision value is exactly the measured five times as having for 10 times in checking.
Claims (7)
1, a kind of single-barrel testing scope for eyesight comprises eyepiece and object lens, it is characterized in that: also comprise central tube, sliding cylinder, rotating cylinder, in its inner chamber of described central tube, by the lining front end eyepiece is set, the rear end is provided with object lens; The lateral surface of central tube is arranged with slideway, sliding cylinder is by being connected in the periphery of central tube with the corresponding chute of described slideway, the leading portion of this sliding cylinder is provided with external screw thread, be connected with rotating cylinder by screw thread, this rotating cylinder is by with being threadedly connected to the adjusting snap ring of central tube periphery, can relatively rotate with described central tube to be connected; The rearward end of described sliding cylinder is provided with the sighting target gum cover of its appearance mint-mark pattern, in the inner chamber of this sighting target gum cover, the end of sliding cylinder sighting target panel is set; The revealed position of the lateral surface of described sliding cylinder is provided with and the corresponding reading scale of sighting target panel.
2, single-barrel testing scope for eyesight according to claim 1 is characterized in that: described object lens are that concavees lens combine.
3, single-barrel testing scope for eyesight according to claim 1 and 2 is characterized in that: protection eyeglass before described eyepiece front is provided with.
4, single-barrel testing scope for eyesight according to claim 1 is characterized in that: described sighting target panel is made by transparent material, and position is provided with single E of rolling or landolsring sighting target letter in the middle of it.
5, according to claim 1 or 4 described single-barrel testing scope for eyesight, it is characterized in that: described sighting target panel back is provided with back protection eyeglass.
6, single-barrel testing scope for eyesight according to claim 1 is characterized in that: the leading section of described central tube is provided with the eyepiece gum cover.
7, single-barrel testing scope for eyesight according to claim 1 is characterized in that: described adjusting collar outer surface is provided with antiskid glue sleeve, this gum cover outside mint-mark pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465131A CN100427024C (en) | 2006-05-01 | 2006-05-01 | Single-barrel testing scope for eyesight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465131A CN100427024C (en) | 2006-05-01 | 2006-05-01 | Single-barrel testing scope for eyesight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1843287A CN1843287A (en) | 2006-10-11 |
| CN100427024C true CN100427024C (en) | 2008-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100465131A Expired - Fee Related CN100427024C (en) | 2006-05-01 | 2006-05-01 | Single-barrel testing scope for eyesight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100427024C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106491070B (en) * | 2016-11-02 | 2018-04-06 | 肖吉业 | Ophthalmic is from main regulation equipment for examining vision |
| EP3687373A1 (en) * | 2017-09-28 | 2020-08-05 | Essilor International | Vision measurement device and method of measuring vision using the same |
| CN108904044A (en) * | 2018-06-22 | 2018-11-30 | 东莞市联洲知识产权运营管理有限公司 | A kind of laser scalpel with protective device |
| CN110811534A (en) * | 2019-12-06 | 2020-02-21 | 张科宇 | Vision detection device |
| CN114788681B (en) * | 2022-06-23 | 2022-10-04 | 华慧健(天津)科技有限公司 | Intelligent wearable eye health instrument based on image acquisition and processing technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875934A (en) * | 1973-03-20 | 1975-04-08 | Kazukiyo Sadanaga | Device for training ocular muscles |
| US4838677A (en) * | 1987-04-06 | 1989-06-13 | Ayetech Inc. | Eye exercising devices |
| EP0424792A1 (en) * | 1989-10-20 | 1991-05-02 | Bosko Jovicevic | Method and apparatus for examination of visual acuity |
| CN2180211Y (en) * | 1994-02-05 | 1994-10-26 | 郭镇灏 | Two-eye tester with computer optometry |
| CN2382361Y (en) * | 1999-07-29 | 2000-06-14 | 舒长河 | Sight detector |
| CN1069029C (en) * | 1994-10-28 | 2001-08-01 | 王莉茹 | Standard model eye for subjective optometer |
| JP3387551B2 (en) * | 1993-04-21 | 2003-03-17 | キヤノン株式会社 | Optometry device |
| CN2920155Y (en) * | 2006-05-01 | 2007-07-11 | 张焕旭 | Monocular eyesight testing mirror |
-
2006
- 2006-05-01 CN CNB2006100465131A patent/CN100427024C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875934A (en) * | 1973-03-20 | 1975-04-08 | Kazukiyo Sadanaga | Device for training ocular muscles |
| US4838677A (en) * | 1987-04-06 | 1989-06-13 | Ayetech Inc. | Eye exercising devices |
| EP0424792A1 (en) * | 1989-10-20 | 1991-05-02 | Bosko Jovicevic | Method and apparatus for examination of visual acuity |
| JP3387551B2 (en) * | 1993-04-21 | 2003-03-17 | キヤノン株式会社 | Optometry device |
| CN2180211Y (en) * | 1994-02-05 | 1994-10-26 | 郭镇灏 | Two-eye tester with computer optometry |
| CN1069029C (en) * | 1994-10-28 | 2001-08-01 | 王莉茹 | Standard model eye for subjective optometer |
| CN2382361Y (en) * | 1999-07-29 | 2000-06-14 | 舒长河 | Sight detector |
| CN2920155Y (en) * | 2006-05-01 | 2007-07-11 | 张焕旭 | Monocular eyesight testing mirror |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1843287A (en) | 2006-10-11 |
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Granted publication date: 20081022 Termination date: 20110501 |