CN215526238U - VR glasses optical module with step-shaped lens - Google Patents

Abstract

A VR (virtual reality) glasses optical module with a step-shaped lens comprises a first base, a second base, a micro display screen, a first lens cone, a second lens cone, a sleeve, a first lens, a second lens, a third lens and a fourth lens, wherein two ends of the axis of the second base are respectively connected with the first base and the first lens cone, the second lens cone is arranged inside the first lens cone, the first lens is arranged on the second lens cone, the second lens, the third lens and the fourth lens are all arranged on the first lens cone, the micro display screen is arranged on the second base, and the sleeve is sleeved outside the first lens cone; the first lens is a circular lens, the cross section of the first lens is arc-shaped, steps are arranged on the periphery of the first lens, a first conical surface is arranged on the periphery of each step, and the first conical surface is located on one side, close to the protrusion of the first lens, of each step. According to the VR glasses optical module with the step-shaped lens, the structure part and the lens are in surface-to-surface contact, so that the contact area is increased, and the problems of large stress, easy scratch and the like can be effectively solved.

Description

VR glasses optical module with step-shaped lens

Technical Field

The utility model belongs to the technical field of virtual reality, and particularly relates to a VR (virtual reality) glasses optical module with a step-shaped lens.

Background

The virtual display technology is that a real world is virtualized by a computer or a mobile terminal and the like, and the virtual world is projected to human eye retinas by a display screen and a visual system. The lens of the human eye is equivalent to a lens with a focal length, and the focusing function of the lens of the myopic eye or the hyperopic eye is slightly damaged so that an external image cannot be focused on the retina. People who cause myopic or hyperopic eyes have many limitations to use VR glasses.

In addition, with the development of virtual display technology, the requirement for image quality is higher, and the requirement for error is higher. The conventional lens shape has great difficulty in assembly, so the shape of the conventional optical lens has high technical requirements on an assembler. In addition, the problem that the assembly difficulty of the eccentricity and the inclination of the element is high due to the line-surface contact between the structural part and the optical part in the assembly process is solved, and if the assembly method is improper, the surface of the lens is damaged and scratched in the assembly process. In particular, in some structures with polarization requirements, stress birefringence can be caused to affect the imaging quality due to the small contact area and the high pressure between the structural member and the optical member.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a VR (virtual reality) glasses optical module with a step-shaped lens, which solves the problems that the lens in the prior art is easy to scratch and damage when being assembled, the stress is large (especially when the requirement on polarized light is met, the stress is large and high stress birefringence is caused), and errors such as inclination, eccentricity and the like caused by assembly.

The technical scheme is as follows: the utility model provides a VR (virtual reality) glasses optical module with a step-shaped lens, which comprises a first base, a second base, a micro display screen, a first lens cone, a second lens cone, a sleeve, a first lens, a second lens, a third lens and a fourth lens, wherein one end of the first base is connected with one end of the second base, one end of the first lens cone is connected with the other end of the second base, the second lens cone is arranged inside the first lens cone, the first lens is arranged on the second lens cone, the second lens, the third lens and the fourth lens are all arranged on the first lens cone, the micro display screen is arranged on the second base, and the sleeve is sleeved outside the first lens cone; the first lens is a circular lens, the cross section of the first lens is arc-shaped, steps are arranged on the periphery of the first lens, a first conical surface is arranged on the periphery of each step, and the first conical surface is located on one side, close to the projection of the first lens, of each step. According to the VR glasses optical module with the step-shaped lens, the structure part and the lens are in surface-to-surface contact, so that the contact area is increased, and the problems of large stress, easy scratch and the like can be effectively solved.

Furthermore, in the VR glasses optical module with the step-shaped lens, a second conical surface is arranged on the inner wall of the second lens barrel, a first boss is arranged at one end of the second lens barrel, the step is in contact with the first boss, and the first conical surface is in contact with the second conical surface. The contact mode of the first conical surface and the second conical surface is adopted, and the lens with smaller curvature can be automatically aligned due to the large inclined angle.

Furthermore, in the VR glasses optical module with the step-shaped lens, the inner wall of the lens barrel ii is provided with the pressing ring i, the pressing ring i is in threaded connection with the lens barrel ii, and the pressing ring i can limit the lens i on the lens barrel ii.

Furthermore, in the above VR glasses optical module with a step-shaped lens, the first lens barrel, the second lens barrel, the sleeve, the first lens, the second lens, the third lens and the fourth lens are coaxially arranged, and the first lens, the second lens, the third lens and the fourth lens are sequentially arranged along a direction away from the micro display screen.

Furthermore, the above VR glasses optical module with the step-shaped lens is characterized in that a moving ring is arranged in the lens barrel, a group of moving guide holes is formed in the lens barrel, a group of moving guide posts are arranged on the outer wall of the moving ring, the group of moving guide holes and the group of moving guide posts are arranged in a one-to-one correspondence manner, one ends of the moving guide posts, far away from the moving ring, are arranged in the moving guide holes, and can move in the moving guide holes, and the moving guide holes are spirally arranged. The second lens can move along with the moving ring for adjusting diopter, so that a user can watch the second lens without wearing additional glasses.

Furthermore, above-mentioned VR glasses optical module with step shape lens, be equipped with clamping ring two on the shift ring, lens two is injectd on the shift ring through clamping ring two.

Furthermore, in the VR glasses optical module with the step-shaped lens, the lens barrel i is provided with the third pressing ring and the fourth pressing ring, the third pressing ring limits the third lens on the lens barrel i, and the fourth pressing ring limits the fourth lens on the lens barrel i.

Furthermore, foretell VR glasses optical module with step shape lens, be equipped with O type circle one between the outer wall of lens one and the inner wall of lens cone two, be equipped with O type circle two between the outer wall of lens four and the inner wall of lens cone one, be equipped with annular groove one on the outer wall of lens cone one, be equipped with O type circle three in the annular groove one, O type circle three sets up between telescopic inner wall and the outer wall of lens cone one, still be equipped with O type circle four between the outer wall of lens cone one and the telescopic inner wall.

Furthermore, according to the VR glasses optical module with the step-shaped lens, the inner wall of the sleeve, which is far away from one end of the base, is provided with the second annular boss, the gasket is arranged between the inner wall of the sleeve, which is far away from one end of the base, and the outer wall of the lens barrel I, the outer wall of the lens barrel I is provided with the second concave table, the second annular boss is arranged in the second concave table, and the gasket is tightly pressed on the end face of the second annular boss and the end face of the lens barrel I through screws.

Furthermore, in the VR glasses optical module with the step-shaped lens, one end of the first lens barrel, which is far away from the first base, extends out of the sleeve, and the end of the first lens barrel, which extends out of the sleeve, is connected with the eyeshade.

The technical scheme shows that the utility model has the following beneficial effects: the VR glasses optical module with the step-shaped lens is reasonable in structural design, the structure of the first lens is improved, the mounting difficulty between the first lens and the first lens barrel is reduced, the first lens can be quickly and stably mounted on the first lens, scratches and the like in the mounting process are avoided, and the mounting effect is improved; the movable lens II is arranged in addition, so that diopter of the VR glasses can be conveniently adjusted, the VR glasses are more concise and convenient to operate, a user with myopia or hypermetropia can use the VR glasses conveniently, and the application range is widened.

Drawings

FIG. 1 is a cross-sectional view of a VR eyeglass optical module with a stepped lens in accordance with the present invention;

FIG. 2 is a schematic structural diagram of a first lens according to the present invention;

fig. 3 is a schematic structural diagram of a VR glasses optical module with a step-shaped lens according to the present invention.

In the figure: the lens comprises a first base 1, a second base 2, a micro display screen 3, a first lens barrel 4, a moving ring 40, a moving guide hole 41, a moving guide column 42, a second pressing ring 43, a third pressing ring 44, a fourth pressing ring 45, a first annular groove 46, a second lens barrel 5, a second conical surface 51, a first boss 52, a first pressing ring 53, a sleeve 6, a second annular boss 61, a gasket 62, a screw 63, a first lens 7, a first O-ring 71, a second O-ring 72, a third O-ring 73, a fourth O-ring 74, a step 711, a first conical surface 712, a second lens 8, a third lens 9, a fourth lens 10 and an eye patch 20.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The VR glasses optical module with the step-shaped lens shown in fig. 1 includes a first base 1, a second base 2, a micro display screen 3, a first lens cone 4, a second lens cone 5, a sleeve 6, a first lens 7, a second lens 8, a third lens 9, and a fourth lens 10, where the first base 1 is connected to one end of the second base 2, one end of the first lens cone 4 is connected to the other end of the second base 2, the second lens cone 5 is disposed inside the first lens cone 4, the first lens 7 is mounted on the second lens cone 5, the second lens 8, the third lens 9, and the fourth lens 10 are all mounted on the first lens cone 4, the micro display screen 3 is mounted on the second base 2, and the sleeve 6 is sleeved outside the first lens cone 4. The first lens barrel 4, the second lens barrel 5, the sleeve 6, the first lens 7, the second lens 8, the third lens 9 and the fourth lens 10 are coaxially arranged, and the first lens 7, the second lens 8, the third lens 9 and the fourth lens 10 are sequentially arranged along the direction far away from the micro display screen 3. One end of the first lens cone 4, which is far away from the first base 1, extends out of the sleeve 6, and the end part of the first lens cone 4, which extends out of the sleeve 6, is connected with an eye mask 20.

The first lens 7 shown in fig. 2 is a circular lens, the cross section of the first lens 7 is arc-shaped, a step 711 is arranged on the outer edge of the periphery of the first lens 7, a first tapered surface 712 is arranged on the outer edge of the step 711, and the first tapered surface 712 is located on the side, close to the protrusion of the first lens 7, of the step 711. The inner wall of the second lens barrel 5 is provided with a second conical surface 51, one end of the second lens barrel 5 is provided with a first boss 52, the step 711 is in contact with the first boss 52, and the first conical surface 712 is in contact with the second conical surface 51. The inner wall of the second lens barrel 5 is provided with a first pressing ring 53, the first pressing ring 53 is in threaded connection with the second lens barrel 5, and the first pressing ring 53 can limit the first lens 7 on the second lens barrel 5. The step 711 added on the outer edge of the first lens 7 with the arc-shaped surface structure can increase the contact area between the first lens 7 and the second lens barrel 5, improve the mounting stability of the first lens 7, and enable the first lens 7 and the second lens barrel 5 to be easily positioned by adopting a connection mode of the first conical surface 712 and the second conical surface 51 between the first lens 7 and the second lens barrel 5.

As shown in fig. 3, a moving ring 40 is disposed in a lens barrel 4, a group of moving guide holes 41 is disposed on the lens barrel 4, a group of moving guide posts 42 is disposed on an outer wall of the moving ring 40, the group of moving guide holes 41 and the group of moving guide posts 42 are disposed in a one-to-one correspondence, one ends of the moving guide posts 42, which are far away from the moving ring 40, are disposed in the moving guide holes 41, the moving guide posts 42 can move in the moving guide holes 41, and the moving guide holes 41 are spirally disposed. The second lens 8 can be driven to change the position during the moving process of the moving guide post 42 on the moving ring 40 along the moving guide hole 41. The moving ring 40 is provided with a second pressing ring 43, and the second lens 8 is limited on the moving ring 40 through the second pressing ring 43. The lens cone I4 is provided with a third pressing ring 44 and a fourth pressing ring 45, the third pressing ring 44 limits the lens III 9 on the lens cone I4, and the fourth pressing ring 45 limits the lens IV 10 on the lens cone I4.

In addition, an O-shaped ring I71 is arranged between the outer wall of the lens I7 and the inner wall of the lens barrel II 5, an O-shaped ring II 72 is arranged between the outer wall of the lens IV 10 and the inner wall of the lens barrel I4, an annular groove I46 is formed in the outer wall of the lens barrel I4, an O-shaped ring III 73 is arranged in the annular groove I46, the O-shaped ring III 73 is arranged between the inner wall of the sleeve 6 and the outer wall of the lens barrel I4, and an O-shaped ring IV 74 is further arranged between the outer wall of the lens barrel I4 and the inner wall of the sleeve 6. The sealing structure is good, and good sealing performance among the second lens barrel 5, the first lens 7, the sleeve 6 and the first lens barrel 4 can be guaranteed.

In addition, an annular boss II 61 is arranged on the inner wall of one end, away from the base II 2, of the sleeve 6, a gasket 62 is arranged between the inner wall of one end, away from the base II 2, of the sleeve 6 and the outer wall of the lens cone I4, a concave platform II 47 is arranged on the outer wall of the lens cone I4, the annular boss II 61 is arranged in the concave platform II 47, and the gasket 62 is tightly pressed on the end face of the annular boss II 61 and the end face of the lens cone I4 through a screw 63.

The washer 62 is fixed on the lens barrel one 4 through the screw 63, and meanwhile, the washer 62 is pressed on the annular boss two 61, so that the sleeve 6 and the lens barrel one 4 are limited in the axial direction.

The VR glasses optical module plays a role of glasses by changing the distance between the lenses, carries out focusing compensation, does not need to additionally wear glasses, and can be automatically adjusted by a user according to the near-sighted or far-sighted condition of the user to complete diopter adjustment and clearly see images on a screen.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims (10)

1. The utility model provides a take VR glasses optical module of step shape lens which characterized in that: the micro-display device comprises a first base (1), a second base (2), a micro-display screen (3), a first lens cone (4), a second lens cone (5), a sleeve (6), a first lens (7), a second lens (8), a third lens (9) and a fourth lens (10), wherein the first base (1) is connected with one end of the second base (2), one end of the first lens cone (4) is connected with the other end of the second base (2), the second lens cone (5) is arranged inside the first lens cone (4), the first lens (7) is arranged on the second lens cone (5), the second lens (8), the third lens (9) and the fourth lens (10) are all arranged on the first lens cone (4), the micro-display screen (3) is arranged on the second base (2), and the sleeve (6) is sleeved outside the first lens cone (4);

the first lens (7) is a circular lens, the cross section of the first lens (7) is arc-shaped, steps (711) are arranged on the periphery of the first lens (7), a first conical surface (712) is arranged on the periphery of the steps (711), and the first conical surface (712) is located on one side, close to the projection of the first lens (7), of the steps (711).

2. The VR glasses optics module of claim 1, wherein: the inner wall of the second lens barrel (5) is provided with a second conical surface (51), one end of the second lens barrel (5) is provided with a first boss (52), the step (711) is in contact with the first boss (52), and the first conical surface (712) is in contact with the second conical surface (51).

3. The VR glasses optics module of stepped shape lens of claim 1 or 2, wherein: and a first pressing ring (53) is arranged on the inner wall of the second lens barrel (5), the first pressing ring (53) is in threaded connection with the second lens barrel (5), and the first lens (7) can be limited on the second lens barrel (5) by the first pressing ring (53).

4. The VR glasses optics module of claim 1, wherein: the micro display screen is characterized in that the first lens barrel (4), the second lens barrel (5), the sleeve (6), the first lens (7), the second lens (8), the third lens (9) and the fourth lens (10) are coaxially arranged, and the first lens (7), the second lens (8), the third lens (9) and the fourth lens (10) are sequentially arranged along the direction away from the micro display screen (3).

5. The VR glasses optics module of claim 1, wherein: be equipped with shift ring (40) in lens cone (4), be equipped with a set of removal guiding hole (41) on lens cone (4), be equipped with a set of removal guide post (42) on the outer wall of shift ring (40), a set of removal guide hole (41) and a set of removal guide post (42) one-to-one set up, the one end setting that shift ring (40) were kept away from in removal guide hole (41) is moved to removal guide post (42) can move in removal guide hole (41), it changes the setting to move guide hole (41) to be the spiral.

6. The VR glasses optics module of claim 5 with a step-shaped lens, wherein: a second pressing ring (43) is arranged on the moving ring (40), and the second lens (8) is limited on the moving ring (40) through the second pressing ring (43).

7. The VR glasses optics module of claim 1, wherein: and the lens barrel I (4) is provided with a pressing ring III (44) and a pressing ring IV (45), the pressing ring III (44) limits the lens III (9) on the lens barrel I (4), and the pressing ring IV (45) limits the lens IV (10) on the lens barrel I (4).

8. The VR glasses optics module of claim 1, wherein: be equipped with O type circle one (71) between the outer wall of lens one (7) and the inner wall of lens cone two (5), be equipped with O type circle two (72) between the outer wall of lens four (10) and the inner wall of lens cone one (4), be equipped with annular groove one (46) on the outer wall of lens cone one (4), be equipped with O type circle three (73) in annular groove one (46), O type circle three (73) set up between the inner wall of sleeve (6) and the outer wall of lens cone one (4), still be equipped with O type circle four (74) between the outer wall of lens cone one (4) and the inner wall of sleeve (6).

9. The VR glasses optics module of claim 1, wherein: the inner wall of one end of the second base (2) is far away from the sleeve (6) and is provided with a second annular boss (61), a gasket (62) is arranged between the inner wall of one end of the second base (2) and the outer wall of the first lens cone (4) far away from the sleeve (6), a second concave table (47) is arranged on the outer wall of the first lens cone (4), the second annular boss (61) is arranged in the second concave table (47), and the gasket (62) is tightly pressed on the end face of the second annular boss (61) and the end face of the first lens cone (4) through a screw (63).

10. The VR glasses optics module of claim 1, wherein: one end, far away from the base (1), of the lens cone I (4) extends out of the sleeve (6), and the end, extending out of the sleeve (6), of the lens cone I (4) is connected with an eye mask (20).

Images