CN218824984U

CN218824984U - Ray apparatus subassembly and VR ray apparatus

Info

Publication number: CN218824984U
Application number: CN202223048392.8U
Authority: CN
Inventors: 何方健; 周彬; 胡新同; 王天钰
Original assignee: Chengrui Optics Changzhou Co Ltd
Current assignee: Chengrui Optics Changzhou Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-04-07
Anticipated expiration: 2032-11-16
Also published as: WO2024103538A1

Abstract

The utility model provides an optical-mechanical assembly, a lens unit of which comprises an adjustable lens and a focusing support, wherein the fixed lens and the adjustable lens are both contained in a lens cone, the adjustable lens is fixed on the focusing support, the lens cone comprises a first through hole extending along the direction parallel to the first direction, and the focusing support comprises a focusing connecting part arranged at the periphery; the focusing unit comprises a connecting unit and a transmission unit, the connecting unit comprises a fixing frame and a screw rod, the fixing frame is fixed on the outer side of the lens barrel, the fixing frame comprises a second through hole extending in the first direction in parallel, one end of the screw rod penetrates through the first through hole and is fixedly connected with the focusing connecting portion, the other end of the screw rod penetrates through the second through hole and is fixedly connected with the transmission unit, and the focusing unit drives the adjustable lens to move linearly in the first direction.

Description

Ray apparatus subassembly and VR ray apparatus

[ technical field ] A method for producing a semiconductor device

The utility model relates to a virtual reality technical field, in particular to ray apparatus subassembly and contain VR ray apparatus of this ray apparatus subassembly.

[ background of the invention ]

Virtual Reality is abbreviated as VR (Virtual Reality), which is a product integrating simulation technology and various technologies such as computer graphics, human-computer interface technology, multimedia technology, sensing technology, network technology and the like, and three-dimensional vivid images which are generated by a computer and are dynamic in real time bring multi-directional perceptions such as vision, touch, hearing and the like for a user, so that the user can be immersed in a Virtual environment to experience the feeling of a real environment. The display principle is that the left and right eye screens respectively display images of the left and right eyes, and the human eyes generate stereoscopic impression in the brain after acquiring the information with the difference. The main factors determining whether the user can clearly see the image are: firstly, the optical system has better display capability, and secondly, the optical system can better adapt to the eye conditions of different people. The first factor is mainly determined by the design and manufacture of the optical system, and the second factor is often related to the auxiliary mechanical adjustment mechanism in addition to the optical system.

Different users of VR products possess different eye conditions, can roughly be divided into myopia, normal, hyperopia three kinds of eyesight, to same optical system, under the condition of not adjusting, can't satisfy almost from myopia to hyperopia and about the different crowd's demand of eye eyesight. It is therefore necessary to add a mechanical focusing mechanism to the optical system aid for adjusting different display conditions.

At present, most VR products do not have a focusing function, and a few products adopt a thread rotation focusing mechanism to adjust the distance between a lens unit and a screen to realize focusing, so that the moving distance of the lens needs to be reserved between the lens and the screen, the TTL (total mechanical length) is enlarged, and the requirement of product lightness and thinness cannot be met; meanwhile, the fault that the threads are unsmooth or the screen is inclined and blocked easily occurs in the thread rotation focusing process, the operation is inconvenient, poor user experience is brought to users, lubricating agents are required to be added to reduce friction, an optical system is easily polluted, and the optical performance is reduced.

[ Utility model ] content

An object of the utility model is to provide a simple structure, low-cost, high degree of freedom, smooth and the ray apparatus subassembly and the VR ray apparatus of convenient to use person's operation of focusing. Under the condition that TTL is constant, the distance between an adjustable lens and a screen in an optical machine assembly can be independently adjusted to realize focusing, and the problems of image blurring and dizziness caused by parallax are solved.

The utility model provides an optical-mechanical assembly, which comprises an image unit, a lens unit and a focusing unit, wherein the image unit is connected with the lens unit along a first direction, and the focusing unit is arranged at the outer side of the lens unit; the image unit comprises a screen assembly and a cover plate, wherein the screen assembly is perpendicular to the first direction; the lens unit comprises a lens barrel, a fixed lens, an adjustable lens and a focusing support, the fixed lens and the adjustable lens are accommodated in the lens barrel, the adjustable lens is fixed on the focusing support, the lens barrel comprises a first through hole extending in a direction parallel to the first direction, and the focusing support comprises a focusing connecting part arranged on the periphery; the focusing unit comprises a connecting unit and a transmission unit, the connecting unit comprises a fixing frame and a screw rod, the fixing frame is fixed on the outer side of the lens barrel, the fixing frame comprises a second through hole parallel to the first direction in an extending mode, one end of the screw rod penetrates through the first through hole and is fixedly connected with the focusing connecting portion, the other end of the screw rod penetrates through the second through hole and is fixedly connected with the transmission unit, and the focusing unit drives the adjustable lens to move linearly in the first direction.

Preferably, the focusing unit includes a rack fixedly connected to the screw, and a gear engaged with the rack, and the fixing frame includes a body adjacent to the lens barrel and an extension frame extending outward from the body, and the gear is fixed to the extension frame by a pin.

Preferably, the body further comprises a chute, the rack portion being received in the chute.

Preferably, the extension bracket includes a gear mounting hole, and the pin is fixed to the gear mounting hole.

Preferably, the gear comprises a toothed end for engagement with the rack and an operative end connected to the toothed end.

Preferably, a groove is formed in the outer side of the lens barrel, a dustproof piece is arranged in the groove, a third through hole is formed in the dustproof piece and is used for the screw to pass through, and the dustproof piece covers the first through hole.

Preferably, the focusing support further comprises at least one guide portion, the inner wall of the lens barrel further comprises at least one guide groove, and the guide portion is accommodated in the guide groove.

Preferably, the image unit includes a diaphragm member provided between the screen assembly and the lens unit.

The utility model also provides a VR ray apparatus, including two as above ray apparatus subassemblies.

The beneficial effects of the utility model reside in that: the optical-mechanical assembly comprises an adjustable lens, under the condition that the total optical length is not changed, the focusing is realized by adjusting the distance between the adjustable lens and the screen, the size is smaller, and the light and thin requirements of products are met; the focusing unit adopts a mode of linearly moving the adjustable lens for focusing, so that the operation is simpler, the movement is smoother, and the lens and the center of the screen are prevented from shifting or inclining in the focusing process.

[ description of the drawings ]

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic structural diagram of a middle light machine assembly according to the present invention;

FIG. 2 is an exploded view of the module of the present invention;

fig. 3 is a partial exploded view of another perspective of the midrange module of the present invention;

FIG. 4 is a schematic view of a focusing unit of the mid-light machine assembly according to the present invention;

fig. 5 is a schematic structural view of the middle fixing frame of the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the invention. However, the technical solution claimed in the present invention can be realized without these technical details and various changes and modifications based on the following embodiments.

Referring to fig. 1 to 5, the present invention provides an optical-mechanical assembly 100, including an image unit 1, a lens unit 2 and a focusing unit 3, wherein the image unit 1 and the lens unit 2 are connected along a first direction Z, and the focusing unit 3 is disposed outside the lens unit 2; image element 1 includes screen pack 11, apron 12 and diaphragm spare 13, and diaphragm spare 13 is located between screen pack 11 and the camera lens unit, and diaphragm spare 13 pastes in screen pack 11's surface, screen pack 11 perpendicular to first direction Z, diaphragm spare 13 center is opened there is the round hole to provide circular facula in order to improve display effect.

The lens unit 2 includes a lens barrel 21, a fixed lens 22, an adjustable lens 23 and a focusing bracket 24, the fixed lens 22 and the adjustable lens 23 are all accommodated in the lens barrel 21, the adjustable lens 23 is fixed in the focusing bracket 24, the lens barrel 21 includes a first through hole 211 extending along a direction parallel to the first direction Z, the focusing bracket 24 includes a focusing connection portion 241 and two guide portions 242 arranged at the periphery, the inner wall of the lens barrel 21 further includes three linear guide grooves 213, the focusing connection portion 241 is partially accommodated in one of the guide grooves 213, and the two guide portions 242 are partially accommodated in the other two guide grooves 213 respectively for guiding the linear movement of the adjustable lens 23.

The focusing unit 3 includes a connection unit 31 and a transmission unit 32, the connection unit 31 includes a fixing frame 311 and a screw 312, the fixing frame 311 is fixed to the outer side of the lens barrel 21, the fixing frame 311 includes a second through hole 3113 extending in a direction parallel to the first direction Z, one end of the screw 312 passes through the first through hole 211 and the focusing connection portion 241, the other end of the screw 312 passes through the second through hole 3113 and the transmission unit 32, the focusing unit 3 drives the adjustable lens 23 to move linearly in the first direction Z, and the adjustable lens 23 does not rotate in the moving process.

The focusing unit 3 includes a rack 321 fixedly connected to the screw 312 and a gear 322 engaged with the rack 321, the fixing frame 311 includes a body 3111 close to the lens barrel 21 and an extending frame 3112 extending outward from the body 3111, the extending frame 3112 is perpendicular to the body 3111, the gear 322 is fixed to the extending frame 3112 through a pin 323, the body 3111 further includes a sliding slot 3114, the rack 321 is partially accommodated in the sliding slot 3114, the rack 321 is limited by the sliding slot 3114 and can move linearly along the sliding slot 3114, the extending frame 3112 includes a gear mounting hole 3115, and the pin 323 is fixed to the gear mounting hole 3115.

The gear 322 includes a toothed end 3221 engaged with the rack 321 and an operating end 3222 connected to the toothed end 3221, the operating end 3222 and the toothed end 3221 are both cylindrical, the diameter of the operating end 3222 is greater than that of the toothed end 3221, the operating end 3222 is a roller, and the toothed end 3221 is a gear.

The operating end 3222 is moved to rotate the gear connecting end 3221, so as to drive the rack 321 to move linearly along the sliding groove 3114. The adjustable lens 23 is fixed on the focusing support 24 through glue, one end of the screw 312 is connected with the focusing connecting part 241 through threads, the rack 321 is provided with a blind hole, the other end of the screw 312 is connected with the blind hole of the rack 321, the adjustable lens 23 is driven to move along the guide groove 213 through the movement of the rack 321, the distance between the adjustable lens 23 and the screen assembly 11 is changed, and the focusing purpose is realized.

The outer side of the lens barrel 21 is provided with a groove 212, the groove 212 is internally provided with a dust-proof part 33, the dust-proof part 33 is provided with a third through hole 331 for the screw 312 to pass through, the screw 312 penetrates through the dust-proof part 33 and drives the dust-proof part 33 to move in the groove 213, and the dust-proof part 33 covers the first through hole 211 for preventing dust from entering the lens unit 2.

The lens barrel 21 has a section D, which is ergonomic, and the fixed lens 22, the adjustable lens 23, and the focusing frame 24 have sections at corresponding positions.

The optical-mechanical assembly comprises an adjustable lens, under the condition that the total optical length is not changed, the focusing is realized by adjusting the distance between the adjustable lens and the screen, the size is smaller, and the light and thin requirements of products are met; the focusing unit adopts a mode of linearly moving the adjustable lens for focusing, so that the operation is simpler, the movement is smoother, and the centers of a lens and a screen are ensured not to shift or incline in the focusing process.

Two above-mentioned ray apparatus subassemblies set up according to the symmetric position and can form a VR ray apparatus, and two ray apparatus subassemblies of this ray apparatus can the independent adjustment to the poor of left and right eye eyesight of adaptation user. The utility model provides an optical machine subassembly and VR ray apparatus can accurate focusing, and easy operation can adapt to different crowds' demand, and especially the crowd defective in the aspect of eyesight adjusts suitable display environment through the focusing unit, uses and experiences better.

The above are only embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. An optical-mechanical assembly is characterized by comprising an image unit, a lens unit and a focusing unit, wherein the image unit and the lens unit are connected along a first direction, and the focusing unit is arranged on the outer side of the lens unit;

the image unit comprises a screen component and a cover plate, wherein the screen component is perpendicular to the first direction;

the lens unit comprises a lens barrel, a fixed lens, an adjustable lens and a focusing support, the fixed lens and the adjustable lens are accommodated in the lens barrel, the adjustable lens is fixed on the focusing support, the lens barrel comprises a first through hole extending in a direction parallel to the first direction, and the focusing support comprises a focusing connecting part arranged on the periphery;

the focusing unit comprises a connecting unit and a transmission unit, the connecting unit comprises a fixing frame and a screw rod, the fixing frame is fixed on the outer side of the lens barrel, the fixing frame comprises a second through hole extending in the first direction in parallel, one end of the screw rod penetrates through the first through hole and is fixedly connected with the focusing connecting portion, the other end of the screw rod penetrates through the second through hole and is fixedly connected with the transmission unit, and the focusing unit drives the adjustable lens to move linearly in the first direction.

2. The carriage assembly of claim 1, wherein the focus adjustment unit comprises a rack fixedly connected to the screw and a gear engaged with the rack, the holder comprises a body adjacent to the barrel and an extension frame extending outward from the body, and the gear is fixed to the extension frame by a pin.

3. The opto-mechanical assembly according to claim 2, wherein the body further comprises a slide slot, the rack portion being received in the slide slot.

4. The opto-mechanical assembly of claim 3, wherein the extension bracket comprises a gear mounting hole, the pin being secured to the gear mounting hole.

5. The opto-mechanical assembly according to claim 4, wherein the gear comprises a geared end engaged with the rack and an operational end connected with the geared end.

6. The optical-mechanical assembly according to claim 5, wherein a groove is formed on an outer side of the lens barrel, a dust-proof member is disposed in the groove, a third through hole is formed in the dust-proof member, the screw rod passes through the third through hole, and the first through hole is covered by the dust-proof member.

7. The optical-mechanical assembly according to claim 6, wherein the focusing frame further comprises at least one guiding portion, the inner wall of the lens barrel further comprises at least one guiding groove, and the guiding portion is received in the guiding groove.

8. The opto-mechanical assembly of claim 7, wherein the image unit comprises a diaphragm disposed between the screen assembly and the lens unit.

9. A VR opto-mechanical characterized by comprising two opto-mechanical assemblies according to any of the claims 1 to 8.