CN109259991B - Optical training instrument - Google Patents
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- CN109259991B CN109259991B CN201811011439.9A CN201811011439A CN109259991B CN 109259991 B CN109259991 B CN 109259991B CN 201811011439 A CN201811011439 A CN 201811011439A CN 109259991 B CN109259991 B CN 109259991B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
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- Ophthalmology & Optometry (AREA)
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Abstract
The invention discloses an optical training instrument which comprises a shell, two groups of lens assemblies arranged in the shell, a distance adjusting assembly, two groups of movable adjusting assemblies arranged corresponding to the two groups of lens assemblies and two groups of indicating assemblies, wherein the two groups of lens assemblies are arranged in the shell; the two opposite sides of the shell are provided with a first window and a second window which are oppositely communicated, and the two groups of lens assemblies are arranged on a communication passage of the first window and the second window side by side; each group of lens components comprises a lens cone, a sleeve which is rotatably sleeved outside the lens cone, an ocular lens arranged in the lens cone and an objective lens which is arranged in the lens cone and penetrates through the lens cone to be matched with the sleeve; the distance adjusting assembly is connected with lens barrels of the two groups of lens assemblies and drives the two groups of lens assemblies to move towards or away from each other; the two groups of movement adjusting components are respectively connected with the sleeves of the two groups of lens components, and the sleeves are driven to rotate to drive the objective lens to move back and forth along the axial direction of the lens cone; the two groups of indicating assemblies are respectively connected with the sleeves of the two groups of lens assemblies and rotate along with the sleeves. The optical training instrument is convenient to operate.
Description
Technical Field
The invention relates to the technical field of optical instruments, in particular to an optical training instrument for eyes.
Background
In the existing optical training instrument used for visual training, the distance between the left lens assembly and the right lens assembly can be adjusted according to the eye distance of a trainer, and can also be adjusted in the axial direction according to the diopter requirement of the trainer. However, in the conventional optical training apparatus, the left and right lens assemblies interfere with each other when performing the distance adjustment or the axial adjustment, i.e. when performing one of the axial adjustments, the left and right lens assemblies can drive the lens assemblies to move to change the distance between the two lens assemblies. In addition, a dial is usually arranged on the optical training instrument and used for displaying the longitudinal moving distance of the objective lens, and the left lens assembly and the right lens assembly can rotate together with the dial when the distance is adjusted, so that the accurate display of the moving distance of the objective lens by the dial is influenced.
In order to adjust the left lens assembly and the right lens assembly to the final needed state, the two lens assemblies need to be debugged for multiple times during adjustment, the operation is inconvenient, and unnecessary troubles are brought.
Disclosure of Invention
The invention aims to provide an optical training instrument convenient to adjust.
The technical scheme adopted by the invention for solving the technical problems is as follows: providing an optical training instrument, which comprises a shell, two groups of lens assemblies arranged in the shell, a spacing adjusting assembly, two groups of indicating assemblies and two groups of moving adjusting assemblies, wherein the two groups of indicating assemblies and the two groups of moving adjusting assemblies are respectively arranged corresponding to the two groups of lens assemblies;
the distance adjusting assembly is connected with the two groups of lens assemblies and drives the two groups of lens assemblies to move towards or away from each other;
the two groups of moving adjusting assemblies are independent of the distance adjusting assemblies and are respectively connected with the objective lenses in the two groups of lens assemblies, and the objective lenses in the lens assemblies are driven to move back and forth in the axial direction of the lens assemblies;
the two groups of indicating assemblies are independent of the distance adjusting assemblies and are respectively connected with the two groups of lens assemblies to indicate the moving distance of the objective lens in the lens assemblies.
Preferably, the lens assembly includes a lens barrel, a sleeve rotatably sleeved outside the lens barrel, an eyepiece arranged in the lens barrel, and an objective lens arranged in the lens barrel and passing through the lens barrel to be matched with the sleeve.
Preferably, the objective lens is fitted in the lens barrel through a fixing frame provided at the periphery; the fixing frame is provided with at least one convex column, the lens barrel is provided with a strip-shaped hole which extends along the axial direction of the lens barrel corresponding to the convex column, the sleeve is provided with a spiral groove corresponding to the convex column, and the convex column penetrates through the strip-shaped hole to be matched in the spiral groove.
Preferably, the movable adjusting assembly comprises an adjusting wheel rotatably mounted on the housing, a rotating shaft in linkage connection with the adjusting wheel, a worm wheel movably sleeved on the rotating shaft, and spiral teeth arranged on the outer peripheral surface of the sleeve; the spiral teeth are meshed with the worm wheel;
the end part of the lens cone is provided with a U-shaped supporting part; the U-shaped supporting part is positioned outside the sleeve, and two supporting legs of the U-shaped supporting part extend to two sides of the worm wheel and are matched on the rotating shaft; when the lens assemblies move towards or away from each other, the worm wheel is driven by the U-shaped supporting portion to move along the axial direction of the rotating shaft.
Preferably, the distance adjusting assembly comprises a distance adjusting wheel rotatably mounted on the housing, an adjusting gear coaxially connected to at least one side of the distance adjusting wheel, and racks respectively arranged on the two lens barrels;
the two racks extend oppositely, and the extending direction of the two racks is vertical to the axial direction of the lens barrel; the adjusting gear is positioned between the two racks and meshed with the racks.
Preferably, the shell is provided with a first through hole exposing the interval adjusting wheel; the two racks are respectively meshed with the upper side and the lower side of the adjusting gear.
Preferably, the indicating assembly includes a dial rotatably mounted on the housing, a toothed wheel disposed on the outer periphery of the sleeve, and a gear set meshingly connected between the dial and the toothed wheel;
scale rodents distributed in the circumferential direction are arranged on one surface, facing the lens assembly, of the dial; the axial length of a gear part meshed with the scale rodent in the gear set is larger than or equal to the moving distance of the lens assembly.
Preferably, when the two groups of lens assemblies move towards or away from each other, the gear parts are driven to move axially relative to the scale rodent, and the dial is static;
the movement adjusting assembly drives the objective lens in the lens assembly to move back and forth in the axial direction, the gear set is driven by the rodent to rotate, and the gear part of the gear set rotates to drive the dial to be connected with the gear part in a meshed mode.
Preferably, a display window corresponding to the dial is arranged on the shell; the dial scale rotates along with the sleeve, and the gear number corresponding to the moving distance of the objective lens is rotated to the display window.
Preferably, a gear bracket is arranged on the periphery of the lens barrel, and the gear set is rotatably mounted on the gear bracket relative to the gear bracket.
Preferably, the gear set includes a gear engaged with the mesh, a first duplicate gear engaged with the gear, a second duplicate gear engaged with the first duplicate gear; the dial is equipped with the scale rodent that circumference distributes towards the one side of sleeve, a gear portion of second duplicate gear with the meshing of scale rodent mutually.
Preferably, the two opposite sides of the housing are provided with a first window and a second window which are communicated with each other, and the two groups of lens assemblies are positioned on a communication passage of the first window and the second window side by side.
Preferably, the optical training instrument further comprises a fixing band for wearing on the head, and two ends of the fixing band are connected to two sides of the shell.
The invention has the beneficial effects that: the movable adjusting component, the indicating component and the distance adjusting component are arranged independently, and the distance adjusting component does not influence the movable adjusting component and the indicating component when the distance (interpupillary distance) between the two groups of lens components is adjusted, so that the movable adjusting component and the distance adjusting component independently complete corresponding adjustment on the lens component; the indicating assembly is linked with the movement adjusting assembly and is used for displaying the gear number corresponding to the movement distance of the objective lens adjusted by the movement adjusting assembly without being influenced by the adjustment of the spacing adjusting assembly; the operation is convenient.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic perspective view of an optical training apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the optical training apparatus of FIG. 1 in another orientation;
FIG. 3 is a top view of an optical training apparatus according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is an exploded view of a portion of the lens assembly of FIG. 5;
FIG. 7 is a schematic view of an optical training apparatus of an embodiment of the present invention with a portion of the housing removed;
FIG. 8 is an enlarged structural schematic of portion C of FIG. 7;
FIG. 9 is a schematic view of the dial of FIG. 7;
FIG. 10 is a cross-sectional view of an optical training apparatus according to another embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 3-5, an optical training apparatus for performing vision training according to an embodiment of the present invention may include a housing 10, two sets of lens assemblies 20 disposed in the housing 10, a distance adjusting assembly 30, two sets of movement adjusting assemblies 40 disposed corresponding to the two sets of lens assemblies 20, and two sets of indicating assemblies 50.
Wherein, two sets of lens subassembly 20 correspond left eye and right eye respectively, and interval adjustment subassembly 30 is used for adjusting the distance between two sets of lens subassembly 20 to be fit for different trainees's binocular interval (interpupillary distance). The movement adjusting assembly 40 is independent of the spacing adjusting assembly 30 and is connected with the objective lens 24 in the lens assembly 20, and drives the objective lens 24 in the lens assembly 20 to move back and forth (move back and forth) in the axial direction of the lens assembly 20; the objective lenses 24 of the two sets of lens assemblies 20 are respectively adjustable by the respective movable adjusting assemblies 40, so that different diopters of the left eye and the right eye of the trainer can be adjusted. The indicating assembly 50 is connected to the lens assembly 20 independently of the distance adjusting assembly 30, and indicates the moving distance of the corresponding objective lens in a graduated manner (shift number, etc.), one diopter for each shift number.
When adjusting the spacing between two sets of lens assemblies 20, the spacing adjustment assembly 30 drives the two sets of lens assemblies 20 to move simultaneously, such as toward or away from each other. The movement adjusting assembly 40 is relatively independent from the spacing adjusting assembly 30 without interference.
Specifically, as shown in fig. 1 and 2, a first window 11 and a second window 12 are provided as observation windows on opposite sides of the housing 10, and the first window 11 and the second window 12 are in opposite communication. The first window 11 is close to the eye and the second window 12 is located on the side of the first window 11 facing away from the eye. Two groups of lens assemblies 20 are arranged side by side on a communication path of the first window 11 and the second window 12; the two sets of lens assemblies 20 are symmetrically disposed and respectively correspond to the left eye and the right eye.
The cover plate on which the first window 11 is arranged is also provided with an eye cover 14, and the eye cover 14 is arranged around the periphery of the first window 11 and can be attached to the periphery of the eyes of the trainer. The eye mask 14 is made of a flexible material so that contact with the circumference of the exerciser's eyes is resilient. The flexible material may comprise silicone, rubber, plastic, etc., such that the eye mask 14 may be a silicone, rubber, or plastic eye mask. The cover plate where the second window 12 is located is provided with a transparent cover 15 which covers the second window 12 and plays roles of protection, attractiveness and the like.
As shown in fig. 4 to 6, each of the lens assemblies 20 includes a lens barrel 21, a sleeve 22, and an eyepiece 23 and an objective lens 24 provided in the lens barrel 21. The sleeve 22 is sleeved outside the lens barrel 21 and is rotatable relative to the lens barrel 21, the eyepiece 23 is close to the first window 11 in the lens barrel 21, the objective lens 24 is close to the second window 12 in the lens barrel 21 and passes through the lens barrel 21 to be matched with the sleeve 22, and the sleeve 22 is driven by the rotation of the sleeve 22 relative to the lens barrel 21 to move back and forth along the axial direction of the lens barrel 21.
The sleeve 22 has a length smaller than that of the lens barrel 21 so as not to completely cover the lens barrel 21 on the inside thereof in the axial direction.
Specifically, the eyepiece 23 is fixedly fitted in the lens barrel 21, and the objective lens 24 is fitted in the lens barrel 21 via a fixing frame 25 provided on the outer periphery. The fixing frame 25 is provided with at least one convex column 251, the lens barrel 21 is provided with a strip-shaped hole 211 corresponding to the convex column 251, and the strip-shaped hole 211 is a linear hole extending along the axial direction of the lens barrel 21; the sleeve 22 is provided with a spiral groove 221 corresponding to the convex column 251, and the convex column 251 passes through the strip-shaped hole 211 and is matched in the spiral groove 221. When the sleeve 22 rotates, the convex column 251 drives the objective lens 24 to move, and the objective lens 24 can only move axially along the strip-shaped hole 211 under the limitation of the strip-shaped hole 211, so that the objective lens 24 can move axially back and forth in the lens barrel 21 to be close to or far away from the ocular lens 23.
In this embodiment, three convex columns 251 are uniformly distributed on the periphery of the fixing frame 25. The lens barrel 21 and the sleeve 22 are correspondingly and uniformly provided with three strip-shaped holes 211 and three spiral grooves 221.
As shown in fig. 4 and 5, the distance adjusting assembly 30 is connected to the lens barrel 21 of the two lens assemblies 20, and drives the two lens assemblies 20 to move toward or away from each other, so as to adjust the distance between the two lens assemblies 20. The spacing adjustment assembly 30 includes a spacing adjustment wheel 31 rotatably mounted on the housing 10, an adjustment gear 32 coaxially connected to at least one side of the spacing adjustment wheel 31, and racks 33 respectively disposed on the two lens barrels 21.
The two racks 33 extend oppositely and the extending direction is perpendicular to the axial direction of the lens barrel 21; the adjusting gear 32 is located between the two racks 33 and engaged with the racks 33, so that the rotation of the spacing adjusting wheel 31 drives the adjusting gear 32 to rotate synchronously, and drives the racks 33 engaged therewith to move back and forth, thereby driving the lens barrel 21 and the lens assembly 20 located therein to move back and forth integrally.
The shell 10 is provided with a first through hole 16 for exposing the spacing adjustment wheel 31, so that the trainer can rotate the spacing adjustment wheel 31 to adjust the spacing.
In the present embodiment, the rack 33 protrudes on the end of the barrel 21 facing the first window 11 and is located outside the end of the sleeve 22. The two racks 33 extend in opposite directions and are staggered with each other, and are engaged with the upper and lower sides of the adjusting gear 32, respectively. The side surface of the end part of the lens barrel 21 where the rack 33 is located can also extend to match with the inner surface of the opposite shell 10 to support the lens barrel 21.
The two sets of movable adjusting components 40 are respectively connected with the sleeves 22 of the two sets of lens components 20, the sleeves 22 are driven to rotate to drive the objective lens 24 to move back and forth along the axial direction of the lens barrel 21, and the adjustment of the moving distance of the objective lens 24 is realized, so that the diopter is adjusted.
Specifically, as shown in fig. 4 and 5, the movement adjusting assembly 40 may include an adjusting wheel 41 rotatably mounted on the housing 10, a rotating shaft 42 coupled with the adjusting wheel 41, a worm wheel 43 movably sleeved on the rotating shaft 42, and a spiral tooth 44 disposed on the outer circumferential surface of the sleeve 22. The helical teeth 44 are engaged with the worm wheel 43, the adjusting wheel 41 rotates to drive the rotating shaft 42 and the worm wheel 43 to rotate, meanwhile, the helical teeth 44 drive the sleeve 22 to rotate, the sleeve 22 rotates to drive the fixing frame 25 and the objective lens 24 to move along the axial direction of the lens barrel 21 through the convex column 251, and the purpose of adjusting the objective lens 24 is achieved.
The helical teeth 44 may be in the shape of a ring, a semi-ring, or an arc, and are fixed to the outer circumferential side surface of the sleeve 22 in parallel with the radial direction of the sleeve 22.
Since the adjustment of the moving distance of the objective lens 24 is driven by the rotation of the sleeve 22, the sleeve 22 and the lens barrel 21 are movably fitted, and the lens barrel 21 does not rotate along with the sleeve 22 when the sleeve 22 rotates, the lens barrel 21 and the whole lens assembly 20 are not driven to move towards or away from each other by moving the adjustment assembly 40 when the adjustment of the moving distance of the objective lens 24 is performed, and the distance (interpupillary distance) between the lens assemblies 20 is not changed.
The movement adjusting assembly 40 corresponds to an end of the lens assembly 20 within the housing 10.
Further, in the lens assembly 20, an end portion of the lens barrel 21 is provided with a U-shaped support portion 212. The U-shaped support portion 212 is located outside the sleeve 22, and two legs of the U-shaped support portion 212 extend to both sides of the worm wheel 43 and are fitted on the rotary shaft 42. The two legs of the U-shaped support 212 are movable on the pivot 42. When the lens assembly 20 moves toward or away from each other, the worm wheel 43 is driven by the U-shaped support 212 to move axially along the shaft 42. During the movement, the worm wheel 43 can keep engaged with the helical teeth 44 on the sleeve 22 and can not be disengaged, so that the subsequent adjustment of the movement distance of the objective lens 24 by the movement adjusting assembly 40 is not affected.
Referring to fig. 2 and 5, the housing 10 is provided with a second through hole 17 exposing the adjusting wheel 41, so that the trainer can rotate the adjusting wheel 41 for adjustment. The adjustment wheel 41 may be mounted on the housing 10 radially parallel to the axial direction of the lens assembly 20 and exposed out of the second through hole 17, wherein the rotation shaft 42 is coaxially connected with the adjustment wheel 41, as shown in fig. 5.
In other embodiments, as shown in fig. 10, the adjusting wheel 41 can also be installed on the housing 10 in a radial direction parallel to the radial direction of the lens assembly 20 and exposed out of the second through hole 17, wherein the rotating shaft 42 is engaged with the adjusting wheel 41 through the bevel gear set 45.
In the present embodiment, as shown in fig. 5, the distance adjustment assembly 30 is located above the lens assembly 20, and the movement adjustment assembly 40 is located below the lens assembly 20, so that the first through hole 16 is located on the upper surface of the housing 10, and the second through hole 17 is located on the lower surface of the housing 10. Two sets of movement adjustment assemblies 40 are symmetrically disposed within the housing 10.
The two sets of indicating assemblies 50 are respectively connected with the sleeves 22 of the two sets of lens assemblies 20 in a linkage manner and rotate along with the sleeves 22. The indicating member 50 is movable as the lens member 20 to which it is attached is moved toward or away from the other lens member 20 (interpupillary distance adjusting direction).
As shown in fig. 3, 7, 8 and 9, the indicating assembly 50 may include a dial 51, a toothed wheel 52 disposed on an outer periphery of the sleeve 22, and a gear set meshingly connected between the dial 51 and the toothed wheel 52. The gear train is disposed on the sleeve 22 of the lens assembly 20 between the dial 51 and the rodent 52. The dial 51 is connected to the sleeve 22 through the meshed gears 53 and 52, and when the sleeve 22 is driven to rotate by the movable adjusting assembly 40, the dial 51 is driven to rotate through the gears 52 and the gear set.
The axial length of the gear portion 551 engaged with the scale mesh 511 in the gear set is not less than the distance of movement of the lens assembly 20 in the pupil distance adjusting direction, so that the lens assembly 10 does not drive the gear set to rotate when moving in the pupil distance adjusting direction, and further does not drive the dial 51 to rotate.
Specifically, when the two lens assemblies 20 move towards or away from each other, the gear portion 551 is driven to move axially relative to the scale teeth 511, and the scale disc 51 is stationary and does not rotate. When the movement adjusting assembly 40 drives the objective lens 24 in the lens assembly 20 to move back and forth in the axial direction, the gear unit 52 rotates the gear unit, and the gear portion 551 of the gear unit rotates (rotates circumferentially) the dial 51 engaged therewith to indicate the moving distance of the objective lens 24.
The teeth 52 may be annular, semi-annular or arcuate, and are fixed to the outer peripheral side surface of the sleeve 22 in parallel with the radial direction of the sleeve 22.
The dial 51 may be rotatably supported in the housing 10 by a rotating shaft or the like; a plurality of gear numbers are arranged on the surface (the surface facing away from the sleeve 22) of the dial 51 to represent diopters and correspond to the moving distance of the objective lens 24; the plurality of shift positions are spaced apart in the circumferential direction of the dial plate 51. The sleeve 22 rotates to drive the objective lens 24 to move in the lens barrel 21, and the moving distance of the objective lens 24 is expressed by the indicating component 50, so that the trainer can know the corresponding diopter conveniently.
The housing 10 is provided with a display window 18 corresponding to the dial 51. The dial 51 rotates with the sleeve 22 to turn the number of steps corresponding to the moving distance of the objective lens 24 to the display window 18.
Referring to fig. 6 to 9, the outer circumference of the lens barrel 21 is provided with a gear holder 213, and the gear holder 213 protrudes from the end of the lens barrel 21 and is located outside the sleeve 22 without interfering with the sleeve 22. The gear set is rotatably mounted to the gear holder 213 relative to the gear holder 213 such that the gear set is fixed to the lens assembly 20 and moves therewith when the lens assemblies 20 move toward and away from each other.
Alternatively, the gear set includes a gear 53 meshed with the mesh 52, a first duplicate gear 54 meshed with the gear 53, a second duplicate gear 55 meshed with the first duplicate gear 54; the dial 51 is provided with a circumferential row of graduated teeth 511 on the side facing the sleeve 22, and the second duplicate gear 55 is in mesh with the graduated teeth 511. Specifically, the gear 53 is provided between the first double gear 54 and the mesh 52, meshing with one gear portion of the mesh 52 and the first double gear 54, respectively; the other gear portion of the first duplicate gear 54 is meshed with one gear portion of the second duplicate gear 55, and the other gear portion 551 of the second duplicate gear 55 is meshed with the scale mesh 511.
Specifically, the gear portion 551 of the second duplicate gear 55 meshing with the scale mesh 511 is lengthened so that the axial length of the gear portion 551 is longer than or equal to the distance by which the lens assembly 20 moves toward or away from each other (moves in the interpupillary distance adjusting direction). Preferably, the length of the gear portion 551 is greater than the maximum distance that the corresponding lens assembly 20 moves away from or towards the other lens assembly 20, so that when the two lens assemblies 20 are adjusted to move towards or away from each other, the gear set thereon moves, and the gear portion 551 of the second duplicate gear 55 in the gear set can move along the tooth space of the scale tooth 511, and cannot rotate to drive the scale tooth 511 to rotate, so that the dial 51 is not driven to rotate to change the gear number at the display window 18.
Further, as shown in fig. 1 and 2, the optical training apparatus of the present invention further includes a fixing band 60 for wearing on the head, and both ends of the fixing band 60 are connected to both sides of the housing 10.
When the optical training instrument is used, a trainer wears the optical training instrument on the head through the fixing belt 60, the eye cover 14 is attached to the periphery of eyes, and the two groups of lens assemblies 20 respectively correspond to the left eye and the right eye. The distance between the two lens assemblies 20 is adjusted according to the eye distance rotating distance adjusting wheel 31. According to the diopter requirements of the left eye and the right eye, the corresponding adjusting wheel 41 is rotated, the objective lens 24 in the lens assembly 20 is driven to move to a proper position, and the final required diopter is determined by combining the gear number on the dial 51. For example, the dial 51 is provided with 0-6 steps corresponding to different diopters; when the dial 51 is displayed as 0 th position, the objective lens 24 is moved at the foremost end in the lens barrel 21, i.e., farthest from the eye; with the dial 51 shown in gear 6, the objective lens 24 is moved at the rearmost end, i.e. closest to the eye.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. An optical training instrument is characterized by comprising a shell (10), two groups of lens assemblies (20) arranged in the shell (10), a spacing adjusting assembly (30), two groups of indicating assemblies (50) and two groups of moving adjusting assemblies (40) which are respectively arranged corresponding to the two groups of lens assemblies (20);
the lens assembly (20) comprises a lens barrel (21), a sleeve (22) which is rotatably sleeved outside the lens barrel (21), an ocular (23) which is arranged in the lens barrel (21), and an objective (24) which is arranged in the lens barrel (21) and penetrates through the lens barrel (21) to be matched with the sleeve (22);
the distance adjusting assembly (30) is connected with the two groups of lens assemblies (20) and drives the two groups of lens assemblies (20) to move in opposite directions or back to back;
the two groups of the moving adjusting assemblies (40) are independent of the spacing adjusting assembly (30) and are respectively connected with the two groups of the lens assemblies (20) to drive the objective lens (24) in the lens assembly (20) to move back and forth in the axial direction of the lens assembly (20);
the two groups of indicating assemblies (50) are independent of the spacing adjusting assembly (30) and are respectively connected with the two groups of lens assemblies (20) and indicate the moving distance of an objective lens (24) in the lens assemblies (20);
the indicating assembly (50) comprises a dial (51) rotatably mounted on the housing (10), a toothed wheel (52) disposed on the outer periphery of the sleeve (22), and a gear set meshingly connected between the dial (51) and the toothed wheel (52);
the scale disc (511) is circumferentially distributed on one surface of the scale disc (51) facing the lens assembly (20); the axial length of a gear part (551) meshed with the scale tooth teeth (511) in the gear set is larger than or equal to the moving distance of the lens assembly (20).
2. Optical training apparatus according to claim 1, characterized in that the objective (24) is fitted in the barrel (21) by means of a peripherally arranged holder (25); the fixing frame (25) is provided with at least one convex column (251), the lens barrel (21) is provided with a strip-shaped hole (211) which extends along the axial direction of the lens barrel (21) corresponding to the convex column (251), the sleeve (22) is provided with a spiral groove (221) corresponding to the convex column (251), and the convex column (251) penetrates through the strip-shaped hole (211) to be matched in the spiral groove (221).
3. The optical training apparatus as claimed in claim 1, wherein the movable adjusting assembly (40) comprises an adjusting wheel (41) rotatably mounted on the housing (10), a rotating shaft (42) linked with the adjusting wheel (41), a worm wheel (43) movably sleeved on the rotating shaft (42), and a helical gear (44) arranged on the outer circumferential surface of the sleeve (22); the helical teeth (44) are meshed with the worm wheel (43);
the end part of the lens barrel (21) is provided with a U-shaped supporting part (212); the U-shaped supporting part (212) is positioned outside the sleeve (22), and two legs of the U-shaped supporting part (212) extend to two sides of the worm wheel (43) and are matched on the rotating shaft (42); when the lens assemblies (20) move towards or away from each other, the worm wheel (43) is driven to move axially along the rotating shaft (42) through the U-shaped supporting portion (212).
4. The optical training apparatus according to claim 1, wherein the spacing adjustment assembly (30) comprises a spacing adjustment wheel (31) rotatably mounted on the housing (10), an adjustment gear (32) coaxially connected to at least one side of the spacing adjustment wheel (31), and racks (33) respectively disposed on the two lens barrels (21);
the two racks (33) extend oppositely, and the extending direction is vertical to the axial direction of the lens barrel (21); the adjusting gear (32) is positioned between the two racks (33) and is meshed with the racks (33).
5. The optical training apparatus as claimed in claim 4, wherein the housing (10) is provided with a first through hole (16) exposing the interval adjustment wheel (31); the two racks (33) are respectively meshed with the upper side and the lower side of the adjusting gear (32).
6. Optical training apparatus according to claim 1, characterized in that the two sets of lens elements (20) move towards and away from each other, bringing the gear portion (551) to move axially relative to the graduated tooth (511), the dial (51) being stationary;
when the movement adjusting assembly (40) drives the objective lens (24) in the lens assembly (20) to move back and forth in the axial direction, the gear set is driven to rotate by the tooth teeth (52), and the dial (51) in meshed connection with the gear portion (551) of the gear set is driven to rotate.
7. Optical training apparatus according to claim 1, characterized in that the housing (10) is provided with a display window (18) corresponding to the dial (51); the dial (51) rotates along with the sleeve (22) to rotate the gear number corresponding to the moving distance of the objective lens (24) to the display window (18).
8. The optical training apparatus as claimed in claim 1, wherein the lens barrel (21) is provided at its periphery with a gear holder (213), and the gear set is rotatably mounted on the gear holder (213) with respect to the gear holder (213).
9. Optical training apparatus according to claim 1, characterized in that the set of gears comprises a gear wheel (53) meshing with the toothing (52), a first duplicate gear wheel (54) meshing with the gear wheel (53), a second duplicate gear wheel (55) meshing with the first duplicate gear wheel (54); a gear portion of the second duplicate gear (55) is meshed with the scale mesh (511).
10. The optical training apparatus as claimed in claim 1, wherein the housing (10) is provided with a first window (11) and a second window (12) on opposite sides thereof, the first window (11) and the second window (12) being in opposite communication with each other, and the two sets of lens assemblies (20) are located side by side in a communication path of the first window (11) and the second window (12).
11. Optical training instrument according to any of claims 1-10, characterized in that it further comprises a fixing strap (60) for wearing on the head, the two ends of the fixing strap (60) being connected on both sides of the housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011439.9A CN109259991B (en) | 2018-08-31 | 2018-08-31 | Optical training instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011439.9A CN109259991B (en) | 2018-08-31 | 2018-08-31 | Optical training instrument |
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| CN109259991A CN109259991A (en) | 2019-01-25 |
| CN109259991B true CN109259991B (en) | 2020-09-29 |
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| CN201811011439.9A Active CN109259991B (en) | 2018-08-31 | 2018-08-31 | Optical training instrument |
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| CN110236897A (en) * | 2019-07-19 | 2019-09-17 | 彭伟 | Vision training instrument and its application method |
| CN111588603B (en) * | 2020-06-18 | 2023-10-31 | 郑州龙视医疗器械有限公司 | Myopia training instrument composed of multifunctional electric control turntable and display screen |
| CN116088185B (en) * | 2023-03-08 | 2023-06-13 | 广州奇境科技有限公司 | Space positioning multi-view 3D display device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016087686A1 (en) * | 2014-12-01 | 2016-06-09 | Eyedak Sociedad Limitada | Adjustable device that permits the coupling and close-range viewing of a smartphone |
| CN205374878U (en) * | 2016-01-28 | 2016-07-06 | 深圳云院线科技有限公司 | Lock fast knot constructs and virtual glasses |
| CN205809418U (en) * | 2016-06-01 | 2016-12-14 | 腾讯科技（深圳）有限公司 | A kind of virtual reality glasses and governor motion thereof |
| KR200483039Y1 (en) * | 2015-09-22 | 2017-03-28 | 최태민 | Virtual reality headset capable of movement of lens |
| CN106646872A (en) * | 2016-10-27 | 2017-05-10 | 中山联合光电科技股份有限公司 | VR glasses convenient for electric adjustment |
| CN206421103U (en) * | 2016-12-28 | 2017-08-18 | 北京奇艺世纪科技有限公司 | It is a kind of can manual focusing helmet |
| CN107065177A (en) * | 2016-10-27 | 2017-08-18 | 中山联合光电科技股份有限公司 | A kind of VR glasses for being easy to adjust manually |
| CN206621522U (en) * | 2016-10-14 | 2017-11-10 | 李治 | A kind of visual training mirror holder |
| CN206848589U (en) * | 2017-04-21 | 2018-01-05 | 歌尔股份有限公司 | A kind of head-mounted display apparatus |
| CN207181834U (en) * | 2017-09-28 | 2018-04-03 | 歌尔科技有限公司 | A kind of VR helmets that can independently focus |
| CN107997934A (en) * | 2017-11-28 | 2018-05-08 | 北京德尚悦目科技有限公司安徽分公司 | A kind of adjustable sight health apparatus |
-
2018
- 2018-08-31 CN CN201811011439.9A patent/CN109259991B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016087686A1 (en) * | 2014-12-01 | 2016-06-09 | Eyedak Sociedad Limitada | Adjustable device that permits the coupling and close-range viewing of a smartphone |
| KR200483039Y1 (en) * | 2015-09-22 | 2017-03-28 | 최태민 | Virtual reality headset capable of movement of lens |
| CN205374878U (en) * | 2016-01-28 | 2016-07-06 | 深圳云院线科技有限公司 | Lock fast knot constructs and virtual glasses |
| CN205809418U (en) * | 2016-06-01 | 2016-12-14 | 腾讯科技（深圳）有限公司 | A kind of virtual reality glasses and governor motion thereof |
| CN206621522U (en) * | 2016-10-14 | 2017-11-10 | 李治 | A kind of visual training mirror holder |
| CN106646872A (en) * | 2016-10-27 | 2017-05-10 | 中山联合光电科技股份有限公司 | VR glasses convenient for electric adjustment |
| CN107065177A (en) * | 2016-10-27 | 2017-08-18 | 中山联合光电科技股份有限公司 | A kind of VR glasses for being easy to adjust manually |
| CN206421103U (en) * | 2016-12-28 | 2017-08-18 | 北京奇艺世纪科技有限公司 | It is a kind of can manual focusing helmet |
| CN206848589U (en) * | 2017-04-21 | 2018-01-05 | 歌尔股份有限公司 | A kind of head-mounted display apparatus |
| CN207181834U (en) * | 2017-09-28 | 2018-04-03 | 歌尔科技有限公司 | A kind of VR helmets that can independently focus |
| CN107997934A (en) * | 2017-11-28 | 2018-05-08 | 北京德尚悦目科技有限公司安徽分公司 | A kind of adjustable sight health apparatus |
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