CN106842615A - Vision auxiliary equipment - Google Patents

Vision auxiliary equipment Download PDF

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Publication number
CN106842615A
CN106842615A CN201710152280.1A CN201710152280A CN106842615A CN 106842615 A CN106842615 A CN 106842615A CN 201710152280 A CN201710152280 A CN 201710152280A CN 106842615 A CN106842615 A CN 106842615A
Authority
CN
China
Prior art keywords
lens
lens devices
eyeglass
user
support meanss
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.)
Pending
Application number
CN201710152280.1A
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Chinese (zh)
Inventor
张建铭
张欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORTH (NANJING) INSTRUMENT TECHNOLOGY Co Ltd
Original Assignee
NORTH (NANJING) INSTRUMENT TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NORTH (NANJING) INSTRUMENT TECHNOLOGY Co Ltd filed Critical NORTH (NANJING) INSTRUMENT TECHNOLOGY Co Ltd
Publication of CN106842615A publication Critical patent/CN106842615A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/02Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08Auxiliary lenses; Arrangements for varying focal length
    • G02C7/081Ophthalmic lenses with variable focal length

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

The invention discloses a kind of vision auxiliary equipment, including:Lens devices, for visually amplifying or/and reducing object so that user is observed object;Support meanss, for supporting lens devices so that lens devices are located at the front of user's face;Wherein, support meanss include:Eyeglass, is made of clear material;Lens devices include:Lens, with a primary optical axis;Lens devices are rotatably connected to eyeglass, and the pivot center inclination that primary optical axis and lens devices and the eyeglass of lens are relatively rotated is intersected.The present invention is advantageous in that:Offer is a kind of can be according to the vision auxiliary equipment being adjusted the need for user.

Description

Vision auxiliary equipment
Technical field
The present invention relates to a kind of equipment for helping user to improve visual capacity, and in particular to a kind of vision auxiliary equipment.
Background technology
The application scenarios of accurate operation are needed in surgical operation etc., user needs to wear auxiliary equipment to help strengthen vision Ability is completing the operation of corresponding precision.
Existing vision auxiliary equipment function is more single, and can not be adjusted according to the situation of user itself.
The content of the invention
A kind of vision auxiliary equipment, including:
First supporting leg, for making vision auxiliary equipment be supported by the left ear of user;
Second supporting leg, for making vision auxiliary equipment be supported by the auris dextra of user;
Nose support, for making vision auxiliary equipment be supported by the nose of user;
It is characterized in that:
Vision auxiliary equipment also includes:
First lens devices, for visually amplifying or/and reducing object so that the left eye of user enters to object Row observation;
Second lens devices, for visually amplifying or/and reducing object so that the right eye of user enters to object Row observation;
First support meanss, for supporting the first lens devices so that the first lens devices are located at user's face front;
Second support meanss, for supporting the second lens devices so that the second lens devices are located at user's face front;
Wherein, the first lens devices are rotatably connected to the first support meanss, and the second lens devices are rotatably coupled To the second support meanss;First supporting leg is rotated and is connected to the first support meanss;Second supporting leg is rotated and is connected to the second support Device;Nose support constitutes with the first support meanss and the second support meanss be connected and positioned at the first lens devices and the second lens respectively Between device.
Further, the first lens devices include:
First lens, with a primary optical axis;
Wherein, the pivot center that the primary optical axis of the first lens is relatively rotated with the first lens devices with the first support meanss inclines Monoclinic phase is handed over.
Further, the second lens devices include:
Second lens, with a primary optical axis;
Wherein, the pivot center that the primary optical axis of the second lens is relatively rotated with the second lens devices with the second support meanss inclines Monoclinic phase is handed over.
Further, the first support meanss include:
First eyeglass, is made of clear material;
First picture frame, for supporting eyeglass;
First lens devices pass through the first eyeglass, the first picture frame to be respectively connecting to the first support feet and nose support.
Further, the first lens devices have relative two ends and the first lens devices include:
First eyepiece, is arranged on the first lens devices near one end of user;
First object lens, are arranged on the other end of first lens devices away from user.
First eyepiece and the first object lens are respectively positioned at the both sides of the first eyeglass.
Further, the first lens devices also include:
First lens barrel, is formed with the first barrel chamber extended along first axle;
First guide holder, is arranged on the outside of the first lens barrel;
First eyepiece and the first object lens are mounted respectively to the first lens barrel;First guide holder is provided with leading for the insertion of the first eyeglass To groove so that the first lens devices relative to the first eyeglass rotate when the first axle of pivot center and the first barrel chamber incline and intersect.
Further, the second support meanss include:
Second eyeglass, is made of clear material;
Second picture frame, for supporting eyeglass;
Second lens devices pass through the second eyeglass, the second picture frame to be respectively connecting to the second support feet and nose support.
Further, the second lens devices have relative two ends and the second lens devices include:
Second eyepiece, is arranged on the second lens devices near one end of user;
Second object lens, are arranged on the other end of second lens devices away from user.
Second eyepiece and the second object lens are respectively positioned at the both sides of the second eyeglass.
Further, the second lens devices also include:
Second lens barrel, is formed with the second barrel chamber extended along second axis;
Second guide holder, is arranged on the outside of the second lens barrel;
Second eyepiece and the second object lens are mounted respectively to the second lens barrel;Second guide holder is provided with leading for the insertion of the second eyeglass To groove so that the second lens devices relative to the second eyeglass rotate when the second axis of pivot center and the second barrel chamber incline and intersect.
A kind of vision auxiliary equipment, including:
Lens devices, for visually amplifying or/and reducing object so that user is observed object;
Support meanss, for supporting lens devices so that lens devices are located at the front of user's face;
Wherein, support meanss include:Eyeglass, is made of clear material;Lens devices include:Lens, with a key light Axle;Lens devices are rotatably connected to eyeglass, primary optical axis and lens devices and the pivot center of eyeglass relative rotation of lens Incline intersecting.
The present invention is advantageous in that:
Offer is a kind of can be according to the vision auxiliary equipment being adjusted the need for user.
Brief description of the drawings
Fig. 1 is one structural representation of preferred embodiment of vision auxiliary equipment of the invention;
Fig. 2 is structural representation of the vision auxiliary equipment shown in Fig. 1 from another visual angle;
Fig. 3 is a dimensional structure diagram for preferred embodiment of lens devices;
Fig. 4 is the planar structure schematic diagram of the lens devices shown in Fig. 3;
Fig. 5 is lens devices another planar structure schematic diagram shown in Fig. 3.
Specific embodiment
As depicted in figs. 1 and 2, vision auxiliary equipment 100 includes:First supporting leg 101, the second supporting leg 102, and nose support 103。
Wherein, the first supporting leg 101 is used to make vision auxiliary equipment be supported by the left ear of user;Second supporting leg 102 For making vision auxiliary equipment be supported by the auris dextra of user;Nose support 103 is used to make vision auxiliary equipment by the nose institute of user Support.When vision auxiliary equipment 100 is worn, the first supporting leg 101 and the second supporting leg 102 are supported on user to user respectively Ears on, while nose support 103 can make vision auxiliary equipment 100 obtain the 3rd the more reliably strong point, such one again Come, by the first supporting leg 101, the second supporting leg 102, and the user of nose support 103 effectively can support vision auxiliary equipment 100 In face.
Again as depicted in figs. 1 and 2, vision auxiliary equipment 100 also includes:First lens devices 10, the second lens devices 20, First support meanss 30 and the second support meanss 40.
Wherein, the first lens devices 10 are by some optical elements, so as to pass through optical principle visually amplify or/ With diminution object so that the left eye of user is observed object;Correspondingly, the first lens devices 20 pass through some optics Element, object is visually amplified or/and reduces so that the right eye of user is carried out to object so as to pass through optical principle Observation.
First support meanss 30 are used to support the first lens devices 10 so that the first lens devices 10 are located at a user's face left side Front;Before second support meanss 40 are used to support the second lens devices 20 so that the second lens devices 20 are located at the user's face right side Side.
First lens devices 10 are connected to the first support meanss 30, and the second lens devices 20 are connected to the second support meanss 40;First supporting leg 101 is rotated and is connected to the first support meanss 30;Second supporting leg 102 is rotated and is connected to the second support meanss 40;Nose support 103 constituted with the first support meanss 30 and the second support meanss 40 respectively be connected and positioned at the first lens devices 10 and Between second lens devices 20.The adjustable activity of relative position is constituted between first support meanss 30 and the second support meanss 40 even Connect and allow a user to adjust the distance between the first lens devices 10 and the second lens devices 20.So, user can be with root According to the interpupillary distance of oneself, the relative position of facial width or operating habit the first support meanss 30 of adjustment and the second support meanss 40 Put.
First support meanss 30 and the second support meanss 40 are at least constituted and are slidably connected.As one of which embodiment, First support meanss 30 and the second support meanss 40 are constituted and are slidably connected, and the first support meanss 30 and the second support meanss 40 are relative The pivot center a that the direction s of slip is relatively rotated perpendicular to the first supporting leg 101 and the first support meanss 30.As optional side Pivot center a and the first supporting leg 101 and the first support that case, the first supporting leg 101 and the first support meanss 30 are relatively rotated The pivot center b that device 30 is relatively rotated be arranged in parallel;So, the first support meanss 30 and the second support meanss 40 are slided relatively Direction s be also perpendicularly to the pivot center b that the first supporting leg 101 and the first support meanss 30 are relatively rotated.As shown in Figure 2, One support meanss 30 and the relative direction s for sliding of the second support meanss 40 are parallel to the first supporting leg 101 and the first support meanss Where the pivot center b that the 30 pivot center a for relatively rotating and the second supporting leg 102 and the second support meanss 40 are relatively rotated Plane α.
Specifically, the first support meanss 30 include:First eyeglass 31 and the first picture frame 32.Wherein the first eyeglass 31 is by saturating Bright material is made, and similar to the eyeglass of glasses, user can be through the object in front of the observation of the first eyeglass 31 for its effect.The One picture frame 32 is used to support the first eyeglass 31 and make it be constituted with the first support feet, 103 and second support meanss of nose support 40 to connect Connect.Similar, the second support meanss 40 include:Second eyeglass 41 and the second picture frame 42.As depicted in figs. 1 and 2, the first support The support meanss 40 of device 30 and second are made up of the structure that the first picture frame 32 and the second picture frame 42 are formed and are slidably connected.First Picture frame 32 is formed with the first slot 321 and the first cartridge part 322, and the second picture frame 42 is formed with the second slot 421 and the second inserting Portion 422, the first cartridge part 322 is inserted into the second slot 421, and the second cartridge part 422 is inserted into the first slot 321, so that Realization is slidably connected;Meanwhile, the first cartridge part 322 and the second cartridge part 422 are respectively formed with the engraved structure that can be overlapped 322a and 422a, can set some screws 104 through engraved structure 322a and 422a, then lock corresponding spiral shell by heteropleural Female 105 realize the locking to being slidably connected.
It should be noted that realize that the mode being slidably connected has a lot, while the mode that locking is slidably connected also has a lot, Way of example above should not limit the protection domain of the application.
As shown in Figures 1 to 5, the first lens devices 10 are constituted to rotate with the first support meanss 30 and are connected, the second lens dress 20 are put to be connected with the composition rotation of the second support meanss 40.
Specifically, the first lens devices 10 are rotated and are connected to the first eyeglass 31, and the second lens devices 20 are rotated and are connected to Second eyeglass 41.
Pivot center c and the vision side of the first lens devices 10 that first lens devices 10 and the first eyeglass 31 are relatively rotated To being not parallel.Specifically, in order to realize the visual function of zooming in or out, the first lens devices 10 are at least wrapped Include first lens, first lens are probably convex lens, also can concavees lens, or other have primary optical axis d optics unit Part.Incline the pivot center c that the first lens devices 10 are relatively rotated with the first eyeglass 31 and primary optical axis d to intersect, so the One lens devices 10 relative to the first eyeglass 31 rotate when, the direction of primary optical axis d also there occurs change, and so user can be with root According to needing to rotate the first lens devices 10 so as to obtain required viewing angle, this can extend visual range and more using user Facilitate object observing thing, such as when user needs the relatively low target in observation position, (be likely to result in tired without significantly bowing Labor and visual apparatus come off), it is only necessary to the first lens devices 10 are rotated, so that the primary optical axis d of the first lens devices 10 is downward Incline, rotate the first lens devices 10 equivalent to the direction for changing the suitable observation of user.
As shown in Figures 3 to 5, more specifically, lens devices 50 include:Eyepiece 51, object lens 52, lens barrel 53 and guide holder 54.Lens indicated above both can be that eyepiece 51 can also be object lens 52, naturally it is also possible to be between eyepiece 51 and object lens 52 Other optical lenses.
Lens devices 50 are provided with relative two ends, wherein, eyepiece 51 is disposed in proximity to one end of user, and object lens 52 are set In the one end away from user, they are respectively positioned at the both sides of eyeglass.Optionally, object lens 52 are convex lens, eyepiece 51 With object lens 52 centered on the primary optical axis e of object lens 52 symmetry axis.Lens barrel 53 is mainly used in installing optical element, and lens barrel 53 is formed The border for having barrel chamber (not shown), barrel chamber limits the visual range of user, and barrel chamber extends approximately along an axis, barrel chamber It is a revolution body cavity with axis as axle, in the scheme shown in Fig. 1 and Fig. 2, the axis of barrel chamber coincides with primary optical axis e.
Guide holder 54 is sleeved on the outside of lens barrel 53 as shown in Figures 3 to 5, and guide holder 54 is provided with what is be embedded for eyeglass Gathering sill 541, the gathering sill 541 is around the periphery of whole guide holder 54, during eyeglass insertion gathering sill 541, the side of gathering sill 541 To making pivot center f of the lens devices 50 when being rotated relative to eyeglass and primary optical axis e (symmetry axis of light kind of thread elements, cylinder in other words The extension axis in chamber) it is to incline to intersect.
Specifically, as shown in Figures 3 to 5, gathering sill 541 constitutes specular, gathering sill relative to a split β 541 split β projection be suitable to primary optical axis e incline it is intersecting.
First lens devices 10 and the second lens devices 20 can be using the lens devices shown in Fig. 3 to Fig. 5.
Lateral adjustments (left and right directions) between first support meanss 30 and the second support meanss 40 can make of the invention regarding Feel that auxiliary equipment 100 adapts to the interpupillary distance that different users have differences;Meanwhile, the first lens devices 10 and the second lens devices 20 Rotation regulation allow users to observe the object of different distance difference angle again, user both can individually be laterally adjusted Or angular adjustment, it is also possible to according to oneself need comprehensive adjustment they to obtain required visual effect.
As shown in figure 1, the first picture frame 32 is provided with interpupillary distance regulation scale 323, the second picture frame 42 is provided with interpupillary distance regulation pointer 423, when user adjusts the first picture frame 32 and the second 42 relative position of picture frame again, pointer 423 can be adjusted to interpupillary distance according to interpupillary distance Regulation scale 323 indicates to be adjusted.It should be noted that interpupillary distance regulation pointer 423 and interpupillary distance regulation scale 323 position also may be used To exchange, or the position shown in other non-Fig. 1 is arranged on, but preferably, it is convenient that they should be arranged on user The place of observation, the position shown in Fig. 1 is more suitable position.
Again as shown in figure 1, the second lens devices 20 are provided with angular adjustment scale 20a, the second of the second support meanss 40 Eyeglass 41 is provided with angular adjustment pointer 41a, the instruction that user can be according to angular adjustment pointer 41a to angular adjustment scale 20a Carry out angular adjustment.Certainly, the first lens devices 10 and the first eyeglass 31 can also be provided with similar structures.
Scale is set and pointer is advantageous in that:
(1) when user knows oneself interpupillary distance or visual angle, user can according to scale and indicate quickly enter row distance or Angle adjustment, then after wearing, the actual effect further according to vision is finely adjusted, convenient and swift.
(2) when a certain fixed interpupillary distance of user's long-term use or visual angle, scale is write down, just in case mistuning interpupillary distance or visual angle, Can be resetted quickly.
(3) when different user is used, each user can remember the calibration parameters of oneself, so that vision of the invention is auxiliary Helping equipment has stronger versatility, and more convenient multiple client uses.
(4) distance provided by the present invention and angular adjustment is increased operability, enhance user manipulation sense and The accuracy of operation, substantially improves user experience.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent or equivalent transformation Technical scheme, all falls within protection scope of the present invention.

Claims (10)

1. a kind of vision auxiliary equipment, including:
First supporting leg, for making the vision auxiliary equipment be supported by the left ear of user;
Second supporting leg, for making the vision auxiliary equipment be supported by the auris dextra of user;
Nose support, for making the vision auxiliary equipment be supported by the nose of user;
It is characterized in that:
The vision auxiliary equipment also includes:
First lens devices, for visually amplifying or/and reducing object so that the left eye of user is seen to object Examine;
Second lens devices, for visually amplifying or/and reducing object so that the right eye of user is seen to object Examine;
First support meanss, before supporting first lens devices so that first lens devices are located at user's face Side;
Second support meanss, before supporting second lens devices so that second lens devices are located at user's face Side;
Wherein, first lens devices are rotatably connected to first support meanss, and second lens devices can turn Second support meanss are connected to dynamicly;First supporting leg is rotated and is connected to first support meanss;Described second Supporting leg is rotated and is connected to second support meanss;The nose support respectively with first support meanss and the second support meanss Composition is connected and between first lens devices and second lens devices.
2. vision auxiliary equipment according to claim 1, it is characterised in that:
First lens devices include:
First lens, with a primary optical axis;
Wherein, the primary optical axis of first lens and turning that first lens devices and first support meanss are relatively rotated Shaft line inclines intersecting.
3. vision auxiliary equipment according to claim 1, it is characterised in that:
Second lens devices include:
Second lens, with a primary optical axis;
Wherein, the primary optical axis of second lens and turning that second lens devices and second support meanss are relatively rotated Shaft line inclines intersecting.
4. vision auxiliary equipment according to claim 1, it is characterised in that:
First support meanss include:
First eyeglass, is made of clear material;
First picture frame, for supporting the eyeglass;
First lens devices pass through first eyeglass, first picture frame to be respectively connecting to first support feet and institute State nose support.
5. vision auxiliary equipment according to claim 4, it is characterised in that:
First lens devices have relative two ends and first lens devices include:
First eyepiece, is arranged on first lens devices near one end of user;
First object lens, are arranged on the other end of first lens devices away from user.
First eyepiece and first object lens are respectively positioned at the both sides of first eyeglass.
6. vision auxiliary equipment according to claim 5, it is characterised in that:
First lens devices also include:
First lens barrel, is formed with the first barrel chamber extended along first axle;
First guide holder, is arranged on the outside of first lens barrel;
First eyepiece and the first object lens are mounted respectively to first lens barrel;First guide holder is provided with for described first The gathering sill of eyeglass insertion so that first lens devices relative to first eyeglass rotate when pivot center and described the The first axle of one barrel chamber inclines intersecting.
7. vision auxiliary equipment according to claim 1, it is characterised in that:
Second support meanss include:
Second eyeglass, is made of clear material;
Second picture frame, for supporting the eyeglass;
Second lens devices pass through second eyeglass, second picture frame to be respectively connecting to second support feet and institute State nose support.
8. vision auxiliary equipment according to claim 6, it is characterised in that:
Second lens devices have relative two ends and second lens devices include:
Second eyepiece, is arranged on second lens devices near one end of user;
Second object lens, are arranged on the other end of second lens devices away from user.
Second eyepiece and second object lens are respectively positioned at the both sides of second eyeglass.
9. vision auxiliary equipment according to claim 8, it is characterised in that:
Second lens devices also include:
Second lens barrel, is formed with the second barrel chamber extended along second axis;
Second guide holder, is arranged on the outside of second lens barrel;
Second eyepiece and the second object lens are mounted respectively to second lens barrel;Second guide holder is provided with for described second The gathering sill of eyeglass insertion so that second lens devices relative to second eyeglass rotate when pivot center and described the The second axis of two barrel chambers incline intersecting.
10. a kind of vision auxiliary equipment, including:
Lens devices, for visually amplifying or/and reducing object so that user is observed object;
Support meanss, for supporting the lens devices so that the lens devices are located at the front of user's face;
Wherein, the support meanss include:Eyeglass, is made of clear material;The lens devices include:Lens, with one Primary optical axis;The lens devices are rotatably connected to the eyeglass, the primary optical axis of the lens and the lens devices and institute The pivot center inclination for stating eyeglass relative rotation is intersecting.
CN201710152280.1A 2017-03-01 2017-03-15 Vision auxiliary equipment Pending CN106842615A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710116889 2017-03-01
CN2017101168893 2017-03-01

Publications (1)

Publication Number Publication Date
CN106842615A true CN106842615A (en) 2017-06-13

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Application Number Title Priority Date Filing Date
CN201710152280.1A Pending CN106842615A (en) 2017-03-01 2017-03-15 Vision auxiliary equipment

Country Status (1)

Country Link
CN (1) CN106842615A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522983A (en) * 1967-07-06 1970-08-04 Zeiss Stiftung Magnifying spectacles
US6338557B1 (en) * 1999-06-07 2002-01-15 Alexander Grendelmeier Spectacles with magnifying lenses
US20030107806A1 (en) * 2001-10-15 2003-06-12 Pentax Corporation Magnification viewer
US20040017539A1 (en) * 2002-07-19 2004-01-29 Yoshio Nagata Eyeglass frames for mounting magnifying lenses and magnifying lenses using eyeglass frames
CN101311772A (en) * 2003-04-25 2008-11-26 微型光学公司 Binocular viewing system
CN202981957U (en) * 2012-12-25 2013-06-12 上海展志光学仪器有限公司 Pupil distance and height measuring instrument
CN103735245A (en) * 2013-12-23 2014-04-23 关伟忠 Pupil distance and pupil height measuring apparatus
CN204790203U (en) * 2015-03-22 2015-11-18 陈友臻 Spectacle -frame of adjustable centre -to -centre spacing
CN206671700U (en) * 2017-03-01 2017-11-24 南京诺思光电仪器有限公司 Vision auxiliary equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522983A (en) * 1967-07-06 1970-08-04 Zeiss Stiftung Magnifying spectacles
US6338557B1 (en) * 1999-06-07 2002-01-15 Alexander Grendelmeier Spectacles with magnifying lenses
US20030107806A1 (en) * 2001-10-15 2003-06-12 Pentax Corporation Magnification viewer
US20040017539A1 (en) * 2002-07-19 2004-01-29 Yoshio Nagata Eyeglass frames for mounting magnifying lenses and magnifying lenses using eyeglass frames
CN101311772A (en) * 2003-04-25 2008-11-26 微型光学公司 Binocular viewing system
CN202981957U (en) * 2012-12-25 2013-06-12 上海展志光学仪器有限公司 Pupil distance and height measuring instrument
CN103735245A (en) * 2013-12-23 2014-04-23 关伟忠 Pupil distance and pupil height measuring apparatus
CN204790203U (en) * 2015-03-22 2015-11-18 陈友臻 Spectacle -frame of adjustable centre -to -centre spacing
CN206671700U (en) * 2017-03-01 2017-11-24 南京诺思光电仪器有限公司 Vision auxiliary equipment

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Application publication date: 20170613

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