CN212623345U

CN212623345U - Optical structure capable of adjusting image distance

Info

Publication number: CN212623345U
Application number: CN202020570215.8U
Authority: CN
Inventors: 莫永平
Original assignee: Shenzhen Fat Shark Electronic Co ltd
Current assignee: Shenzhen Fat Shark Electronic Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-26
Anticipated expiration: 2030-04-16

Abstract

The utility model belongs to the technical field of the video glasses of model aeroplane and model ship industry, seeing and hearing amusement, a but optical structure of image regulation distance is disclosed, include: the optical lens cone comprises an optical lens cone (2), a lens cone frame (5), a display screen (54), a guiding portion and a matching portion, wherein the matching portion can be guided by the guiding portion to move in the direction from the center of the section of the optical lens cone to the center of the display screen, the optical lens cone is sleeved on the lens cone frame, one of the guiding portion and the matching portion is arranged on the optical lens cone, the other one of the guiding portion and the matching portion is arranged on the lens cone frame, the matching portion can be guided by the guiding portion to move in the direction from the center of the section of the optical lens cone to the center of the display screen, the distance between the optical lens cone and the display screen is adjusted by changing the position of the optical lens.

Description

Optical structure capable of adjusting image distance

Technical Field

The utility model belongs to the technical field of the video glasses of model aeroplane and model ship industry, audio-visual amusement, especially, relate to an optical structure of adjustable image distance.

Background

Video glasses are one of head-mounted virtual displays, and a player is designed to be like glasses under the premise of playing video, namely, glasses type displays and portable cinemas. Among them, the first person named main viewing angle (FPV) glasses is an intelligent wearable device providing visual perception to users, and due to its excellent performance in user visual experience, especially in aviation simulation and vehicle simulation, the FPV glasses are increasingly popular. The FPV glasses generally include a glasses housing, a control board, an antenna module, a display screen, and a battery, which are disposed in the glasses housing. The FPV glasses receive video signals output by an aviation model, a vehicle model and the like by using the antenna module and display the video signals in front of eyes of a viewer on the display screen. With the technological progress and the technical development, the FPV glasses are widely applied to the daily life of people.

However, for the myopic user, when the video glasses are used, if the myopic glasses are not worn, the pictures of the video glasses cannot be clearly seen. Although the common video glasses also consider the myopic user, the solution is only to add a gasket at the eyeshade part to make room for the glasses, but the solution has the disadvantages that the positions of the spectacle frame and the nose pad of the myopic user are stressed, and the myopic user feels uncomfortable after long-term use.

To this, prior art provides a solution, is equipped with frame portion towards people's eye one side at the lens cone of video glasses, and this frame portion is equipped with the lens position of slot-like, through adding the near-sighted lens of different degrees, makes the picture that the video glasses were watched to near-sighted user can be clear. However, due to differences of individual users, different myopic users need to configure myopic lenses with different degrees, and the degrees of the users may change, which requires the users to purchase myopic lenses with different degrees, which is not beneficial for the users to use.

In the above scheme, the distance between the lens position of the video glasses and the display screen is fixed, and for a non-myopic user, when the user stares at an image for a long time in a short distance, muscles in eyes are also in a tense state, so that visual syndromes such as eye fatigue, blurred vision, headache, and inattention are caused.

In summary, the existing product design cannot adjust the distance of the image, so that the users with myopia or non-myopia feel inconvenient in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical structure of adjustable image distance is through conveniently changing the distance between optical lens barrel and the display to make the user can adjust the distance of demonstration distance according to the demand of oneself.

In order to achieve the above object, the utility model discloses an optical structure of adjustable image distance does, including optical lens barrel, lens barrel holder, display, its characterized in that, including guide structure, guide structure specifically includes guide portion and cooperation portion, cooperation portion can receive the guide of guide portion with optical lens barrel cross-section center arrives the direction at display screen center removes for the axle, the optical lens barrel cover is established on the lens barrel holder, guide portion with one of cooperation portion sets up between them on the optical lens barrel, the other one sets up on the lens barrel holder, cooperation portion can receive the guide of guide portion and move to the direction at display screen center along optical lens barrel cross-section center, through changing the position of optical lens barrel in the lens barrel holder, adjusts the distance of optical lens barrel and display screen, reaches the purpose of adjusting the image distance.

Further, the guiding part comprises a guide groove, the guide groove is parallel to the direction from the center of the section of the optical lens barrel to the center of the display screen, the matching part comprises a guide post, and the guide post moves in the guide groove and plays a role in guiding and limiting the moving range of the guide post in the form of the guide groove.

In addition, the focusing mechanism further comprises a focusing knob, the focusing knob is sleeved on the lens barrel frame, the limiting groove is obliquely arranged relative to the direction from the center of the section of the optical lens barrel to the center of the display screen, a guide groove is formed in the position of the lens barrel frame opposite to the limiting groove, and the guide post is fixed on the optical lens barrel through the limiting groove and the guide groove, so that the linear motion of the optical lens barrel is converted into the rotary motion of the focusing knob.

Furthermore, the optical lens barrel comprises a longitudinal adjusting button, the guide post is fixed on the optical lens barrel, the longitudinal adjusting button is fixedly connected with the guide post, and the position of the optical lens barrel in the lens barrel frame can be changed by directly sliding the longitudinal adjusting button.

The guide portion comprises a guide shaft and an insertion hole fixing portion, one end of the guide shaft is threaded, the other end of the guide shaft is unthreaded, the matching portion comprises a thread fixing portion, the unthreaded end of the guide shaft is fixed in the insertion hole fixing portion and can rotate in the insertion hole fixing portion, the threaded end of the guide shaft can be screwed in and screwed out of the thread fixing portion, and the guide portion further comprises a knob, and the knob is fixed on the guide shaft, is simple in structure and is convenient to assemble.

Advantageously, a transverse groove is formed in the surface of the focusing knob, a protruding structure is arranged at a corresponding position on the surface of the lens barrel frame, and when the focusing knob is sleeved on the lens barrel frame, the protruding structure is clamped in the transverse groove, so that the assembling position of the focusing knob on the lens barrel frame is fixed, and the moving range of the focusing knob is limited.

Advantageously, there are a plurality of said guiding grooves and said limiting grooves, each of said guiding grooves and said limiting grooves corresponding to one of said guiding posts, so as to play a fixed guiding role for the rotation of said focus knob, and to guide the movement of the optical barrel more stably.

Preferably, the knob is fixed at a position between the insertion hole fixing portion and the screw fixing portion, or the knob is fixed at a side of the insertion hole fixing portion away from the screw fixing portion.

Correspondingly, the diameter of the focusing knob is larger than that of the lens barrel frame, the diameter of the lens barrel frame is larger than that of the optical lens barrel, the optical lens barrel is sleeved on the lens barrel frame, and the focusing knob is sleeved on the lens barrel frame.

Preferably, the guide structure can be located on the outside, upper or lower side of the frame structure for easy manipulation by the user.

The scheme provides an optical structure capable of adjusting the distance of an image, wherein the matching part moves along the direction from the center of the section of the optical lens barrel to the center of the display screen through the guiding of the guiding part, so that the change of the position between the guiding part and the matching part can lead to the change of the position of the optical lens barrel in the lens barrel frame, the distance between the optical lens barrel and the display screen can be adjusted, and the purposes of adjusting the distance of the image and facilitating the use of a user are achieved.

Drawings

Fig. 1 is an exploded view of an optical structure capable of adjusting the distance of an image according to a first embodiment of the present invention.

Fig. 2 is an exploded view of an optical structure capable of adjusting the distance of an image according to a second embodiment of the present invention.

Fig. 3 is an exploded view of an optical structure capable of adjusting the distance of an image according to a third embodiment of the present invention.

1-lens baffle, 2-optical lens cone, 21-optical lens cone screw, 22-longitudinal adjusting button, 23-guide shaft, 24-thread fixing part, 3-focusing knob, 31-limiting groove, 311-focusing knob side external limiting groove, 312-focusing knob side internal limiting groove, 32-transverse groove, 4-guide column, 5-lens cone frame, 51-guide groove, 511-lens cone frame side external guide groove, 512-lens cone frame side internal guide groove, 52-sliding button, 53-steel column, 54-display screen, 55-display screen mounting plate, 56-screw gasket, 57-lens cone frame screw, 58-insertion hole fixing part, 6-module driving plate, 7-sound piece, 71-middle through shaft plate, 72-middle cover plate, knob-8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses a solve the shortcoming that exists among the prior art, that is the user can not adjust the distance of video glasses image according to the demand of self, provides the optical structure of the distance of an adjustable image. The scheme provides an optical structure capable of adjusting the distance of an image, which comprises an optical lens barrel, a lens barrel frame, a display screen and a guide structure, wherein the guide structure specifically comprises a guide part and a matching part. The optical lens barrel is sleeved on the lens barrel frame, the lens barrel frame is fixed, one of the guide part and the matching part is arranged on the optical lens barrel, the other one of the guide part and the matching part is arranged on the lens barrel frame, the matching part can move along the direction from the center of the section of the optical lens barrel to the center of the display screen under the guidance of the guide part, and the distance between the optical lens barrel and the display screen is adjusted by changing the position of the optical lens barrel in the lens barrel frame, so that the purpose of adjusting the distance of an image is achieved.

The following detailed description is given to specific implementations of the present invention with reference to specific embodiments:

example one

As shown in fig. 1, an optical structure capable of adjusting the distance of an image comprises: the lens baffle plate comprises a lens baffle plate 1, an optical lens barrel 2, a focusing knob 3, a lens barrel frame 5, a steel column 53, a display screen 54, a display screen mounting plate 55 and a module driving plate 6, wherein the lens baffle plate 1 is shaped like a circular disc, the diameter of the lens baffle plate is slightly larger than the diameter of the section of the optical lens barrel 2, a small round table protrudes from the bottom of the lens baffle plate 1, the diameter of the small round table is slightly smaller than the diameter of the section of the optical lens barrel 2, and the small round table of the lens baffle plate 1 can be clamped at the lens. The optical barrel 2 includes optical lenses and a cylindrical barrel wall, and the cylindrical barrel wall body extends along a direction from the center of the cross section of the optical barrel 2 to the center of the display screen 54, as shown in fig. 1, and this direction is defined as the Y-axis. The main bodies of the focusing knob 3 and the lens barrel frame 5 are arranged along the Y axis, the focusing knob 3 and the lens barrel frame 5 are of a cylindrical structure, the diameter of the cross section of the focusing knob 3 is slightly larger than that of the lens barrel frame 5, the diameter of the cross section of the optical lens barrel 2 is slightly smaller than that of the lens barrel frame 5, so that the optical lens barrel 2 can be sleeved on the inner side of the lens barrel frame 5, and the focusing knob 3 is sleeved on the outer side of the lens barrel frame 5. The module driving plate 6 is used for driving the display screen 54, the display screen 54 is installed on the display screen installation plate 55, the display screen installation plate 55 is fixedly connected with the lens barrel frame 5 through a lens barrel frame screw 57 and a screw gasket 56, and the steel column 53 penetrates through a through hole in the lens barrel frame 5 and is connected with the left optical lens barrel 2 and the right optical lens barrel 2 in series to form a module system.

In this embodiment, the size of the image displayed to the user is changed by the cooperation of the guiding portion and the matching portion, wherein the guiding portion is specifically a guiding groove, and the matching portion is specifically a guiding column. The focusing device further comprises a focusing knob 3 matched with the guide post 4 for working, and a limiting groove 31 obliquely arranged relative to the Y axis is formed in the side face of the focusing knob 3. The optical lens barrel 2 is assembled in the focusing knob 3, the focusing knob 3 is sleeved on the lens barrel frame 5, wherein the diameters of the optical lens barrel 2, the focusing knob 3 and the lens barrel frame 5 are not greatly different, and lubricating oil is coated among the three, so that the three can move smoothly. The outside of the side surface of the lens barrel frame 5 is provided with a lens barrel frame side surface outside guide groove 511 parallel to the Y-axis direction, and the inside of the side surface of the lens barrel frame 5 is provided with a lens barrel frame side surface inside guide groove 512 parallel to the Y-axis direction, thereby fixing and guiding the optical lens barrel 2. The guide post 4 is fixed to the side surface of the optical barrel 2 sequentially through the focus knob side surface outside defining groove 311 and the barrel frame side surface outside guide groove 511. Similarly, the other guide post 4 is also fixed to the side surface of the optical barrel 2 via the focus knob side surface inside limit groove 312 and the barrel holder side surface inside guide groove 512 in this order. Specifically, the guide post 4 may be fixed to the optical barrel 2 by an optical barrel screw 21, for example. The lens barrel frame 5 is provided with a convex structure, when the focusing knob 3 is sleeved on the lens barrel frame 5, the convex structure is arranged in the transverse groove 32, the focusing knob 3 is fixed, and the focusing knob 3 can only rotate on the X axis. Thus, when the focus knob 3 is rotated, since the limiting groove 31 is disposed obliquely relative to the Y-axis, the position of the guiding post 4, which is located inside the limiting groove 31 and is limited in the guiding groove 51, on the Y-axis is changed, and the guiding post 4 further drives the optical lens barrel 2 to displace on the Y-axis, so that the distance between the optical lens barrel 2 and the display 54 can be conveniently changed, and the size change of the image displayed to the user can be realized.

Still further, the present embodiment further includes a sliding button 52, a middle shaft-penetrating plate 71, a rattle 7, and a middle cover plate 72, wherein the middle shaft-penetrating plate 71 is fixedly connected between the two lens barrel holders 5, the module driving plate 6 is fixed on the middle cover plate 72, the middle cover plate 72 fixes the rattle 7 on the middle shaft-penetrating plate 71, the rattle 7 plays a role of precise guiding when the optical lens barrel 5 is adjusted left and right, a groove is provided at the top of the sliding button 52, the sliding button 52 is assembled on a boss at the bottom of the lens barrel holder 5, the sliding button 52 is assembled in a corresponding groove of the housing, the sliding button 52 is toggled, the rattle 7 and the lens barrel holders 5 are driven by gears, and the optical lens barrel 2 is precisely adjusted, so as to achieve the lateral left and right.

Example two

Fig. 2 shows another embodiment of an optical structure capable of adjusting the distance of an image. Different from the first embodiment, the second embodiment is configured to omit the focus knob 3, and to directly adjust the longitudinal adjustment knob 22 to control the distance between the optical barrel 2 and the display screen 54, thereby realizing the size change of the image. In this embodiment, the optical structure mainly includes: optical lens barrel 2, guide post 4, lens barrel frame 5, longitudinal adjusting button 22 and display 54. One side of the longitudinal adjusting knob 22 is provided with a friction surface for increasing the friction between the longitudinal adjusting knob 22 and the user's finger to facilitate adjustment of the longitudinal adjusting knob 22, and the other side can be fixedly matched with the guide post 4, for example, a cylindrical boss is provided to fix the longitudinal adjusting knob 22 and the guide post 4. The guiding post 4 is fixed on the optical lens barrel by the longitudinal adjusting button 22, and the guiding post 4 is fixed on the optical lens barrel 2 by passing through the guiding groove 51 parallel to the Y-axis direction on the lens barrel frame 5, wherein the guiding groove 51 can be located at the lateral outer part, upper part or lower part of the lens barrel frame 5. Therefore, the distance between the optical barrel 2 and the display screen 54 can be controlled by sliding the longitudinal direction adjustment knob 22 in the Y-axis direction, thereby realizing the size change of the image.

EXAMPLE III

Fig. 3 shows a third embodiment of an optical structure for adjusting the distance between images. Different from the first two embodiments, in the present embodiment, the guiding portion includes a guiding shaft and an insertion hole fixing portion, and the matching portion includes a thread fixing portion, and in the present embodiment, by rotating the knob 8, the threaded end of the guiding shaft 23 is screwed into or out of the threaded hole, so as to control the distance between the optical lens barrel 2 and the display screen 54, thereby realizing the size change of the image. In this embodiment, the optical structure mainly includes: the optical lens barrel comprises an optical lens barrel 2, a lens barrel frame 5, a guide shaft 23, a knob 8 and a display screen 54, wherein one end of the guide shaft 23 is provided with threads, and the other end of the guide shaft 23 is not provided with threads. The middle of the knob 8 is provided with a through hole, the diameter of the through hole is consistent with that of the guide shaft 23, the guide shaft 23 penetrates through the knob 8 through the hole, the knob 8 is fixed on the guide shaft 23, and the knob 8 and the guide shaft do not slide relatively. The optical lens barrel 2 is provided with a screw fixing portion 24 on the outer side, upper portion or lower portion of the side surface of the barrel wall in the Y-axis direction, the screw fixing portion 24 is provided with a screw hole corresponding to the guide shaft 23, an insertion hole fixing portion 58 is provided on the outer side, upper portion or lower portion of the side surface of the barrel frame 5 corresponding to the screw fixing portion 24, and an insertion hole is provided in the insertion hole fixing portion 58.

Further, the non-threaded end of the guide shaft 23 is inserted into the hole and can be fixed to rotate in the hole, for example, two grooves are formed around the column at the tail end of the non-threaded end of the guide shaft 23, two annular protrusions are formed around the hole wall at the bottom of the hole, the grooves of the guide shaft and the annular protrusions are matched with each other to prevent the guide shaft from falling off from the hole, a certain gap is reserved between the guide shaft 23 and the hole, and lubricating oil is coated between the guide shaft and the hole to enable the guide shaft 23 to rotate in the hole. The threaded end of the guide shaft 23 is matched with the threaded hole of the lens cone frame 5, and the threaded end of the guide shaft 23 is screwed in and out of the threaded hole by rotating the knob 8, so that the distance between the optical lens cone 2 and the display screen 54 is controlled, and the size change of the image is realized.

In the above embodiment, the screw fixing portion 24 is provided on the outer side of the cylindrical wall of the optical lens barrel 2, the insertion hole fixing portion 58 opposite to the screw fixing portion 24 is provided on the outer side of the cylindrical wall of the lens barrel holder 5, alternatively, the insertion hole fixing portion 58 is provided on the outer side of the cylindrical wall of the optical lens barrel 2 in the Y-axis direction, the insertion hole fixing portion 58 is provided with the insertion hole adapted to the guide shaft 23, the screw fixing portion 24 opposite to the insertion hole fixing portion 58 is provided on the outer side of the cylindrical wall of the lens barrel holder 5, and the screw hole is. The unthreaded one end of guiding axle 23 inserts the hole, can fix the rotation in the inserted hole, and the threaded one end of guiding axle 23 matches with the screw hole of lens cone frame 5, and through rotating knob 8, the threaded one end of guiding axle 23 and screw hole are screwed in and out, control optical lens barrel 2 and the distance of display screen 54 to realize the big or small change of image.

Therefore, the utility model discloses an optical structure of adjustable image distance that realizes can control optical lens barrel 2 and display screen 54's distance through guide structure, and optical lens barrel 2 diminishes from the display screen 54 near-time image, and optical lens barrel 2 is from the display screen 54 far-time image grow, can realize that the distance is adjustable like this, changes the size of image, very big satisfied different crowds' user demand, especially improved the convenience of use to the myopia crowd.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an optical structure of adjustable image distance, includes optical tube, lens barrel frame, display screen, its characterized in that, includes guide structure, guide structure specifically includes guide portion and cooperation portion, cooperation portion can receive the guide of guide portion with optical tube cross-section center arrives the direction at display screen center removes, the optical tube cover is established on the lens barrel frame, guide portion with one of them setting of cooperation portion is in on the optical tube, the other one sets up on the lens barrel frame.

2. The optical structure of claim 1, wherein the guiding portion comprises a guiding groove parallel to a direction from a center of a cross section of the optical lens barrel to a center of the display screen, and the engaging portion comprises a guiding post moving in the guiding groove.

3. The optical structure of claim 2, further comprising a focusing knob, wherein the focusing knob is sleeved on the lens barrel holder, a limiting groove is located on the focusing knob, the limiting groove is obliquely arranged relative to the direction from the center of the cross section of the optical lens barrel to the center of the display screen, the guide groove of the lens barrel holder corresponds to the limiting groove, and the guide post is fixed on the optical lens barrel through the limiting groove and the guide groove.

4. The optical structure of claim 2, further comprising a longitudinal adjusting knob, wherein the guiding post is fixed on the optical barrel, and the longitudinal adjusting knob is fixedly connected to the guiding post.

5. The optical structure of claim 1, wherein the guiding portion comprises a guiding shaft, an insertion hole fixing portion, the guiding shaft is threaded at one end and unthreaded at the other end, the engaging portion comprises a threaded fixing portion, the unthreaded end of the guiding shaft is fixed in the insertion hole fixing portion and can rotate in the insertion hole fixing portion, and the threaded end of the guiding shaft can be screwed in and out of the threaded fixing portion, and the optical structure further comprises a knob fixed on the guiding shaft.

6. The optical structure of claim 3, wherein the focusing knob has a transverse groove on its surface, and a protrusion structure is located at a corresponding position on the surface of the lens barrel holder, and when the focusing knob is mounted on the lens barrel holder, the protrusion structure is locked in the transverse groove.

7. The optical structure of claim 2, wherein there are a plurality of said guiding grooves, and each of said guiding grooves corresponds to one of said guiding pillars.

8. The optical structure of claim 5, wherein the knob is fixed on a side of the insertion hole fixing portion away from the thread fixing portion, or a position between the insertion hole fixing portion and the thread fixing portion.

9. The optical structure of claim 3, wherein the diameter of the focusing knob is larger than the diameter of the lens barrel holder, the diameter of the lens barrel holder is larger than the diameter of the optical lens barrel, the optical lens barrel is sleeved on the lens barrel holder, and the focusing knob is sleeved on the lens barrel holder.

10. An optical structure as claimed in claim 4 or 5, wherein the guiding structure is located at the side of the frame structure, at the upper part or at the lower part.