CN218917910U

CN218917910U - Ultrashort burnt double reflection virtual reality projection display device

Info

Publication number: CN218917910U
Application number: CN202222986428.0U
Authority: CN
Inventors: 闫文忠; 陈晨; 陈建兵; 杨剑; 郭星
Original assignee: Ruiying Technology Suzhou Co ltd
Current assignee: Ruiying Technology Suzhou Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-04-25
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses an ultra-short-focus double-reflection virtual reality projection display device which comprises a frame, wherein a left side projection device, a right side projection device, a top projection device and a front projection device are fixed in the frame, and a left double-reflector group, a right double-reflector group, a top reflector and a front double-reflector group are fixed in the frame. Taking a right double-reflector group as an example, a right reflector I is arranged on one side of the right reflector I, and a right projection screen is fixed inside one side of the frame away from the right reflector II. According to the utility model, through the arranged double reflector sets, the projection equipment is utilized to send out the image, the image is reflected to the second reflector through the first reflector, and the second reflector is used for secondarily reflecting the image to the projection screen, so that the overall occupied field of the virtual reality projection display device is reduced under the condition that the optical path is unchanged, the virtual reality projection display device can be used in a small field, and the application range of the virtual reality projection display device is increased.

Description

Ultrashort burnt double reflection virtual reality projection display device

Technical Field

The utility model relates to the technical field of projection, in particular to an ultra-short-focus double-reflection virtual reality projection display device.

Background

The purpose of CAVE (projection-based immersive virtual reality display system) is to provide a user with an immersive environment through computer-generated image signals. Four-sided CAVE, which is commonly used in the art, typically comprises front, left, right, and floor screens, wherein the front, left, and right screens are rear projection versions and the floor screen is front projection version.

Chinese patent No. CN201620502577.7 provides a projection-based virtual reality display system, the system comprising: a projection bracket; the projection screens are arranged on the projection bracket to form a frame body comprising a top opening and a front opening, the bottom of the frame body is provided with a certain height relative to the bottom end of the projection bracket, each projection screen comprises a projection surface and a display surface opposite to the projection surface, and the display surfaces of the projection screens form the inner surface of the frame body; the plurality of groups of projection devices are arranged on the projection bracket, correspond to the plurality of projection screens respectively and are arranged on one side of the projection surface of the corresponding projection screen, and are respectively used for projecting images on the projection surface of the corresponding projection screen.

CAVE is relatively demanding on the site, generally requiring at least 12m x 10m x 3.6m of installation space. As is well known, rear projection forms often fail to meet system requirements due to the large floor space. The projector in the above patent only performs primary reflection through the reflecting mirror, and the selected lens is not an ultra-short focal lens, so that the light generated by the projector has a longer optical path to perform imaging, and further, the projection bracket needs to have a larger size, which results in that the virtual reality projection display device is greatly limited on the field. Therefore, there is a need to design an ultra-short focal dual reflection virtual reality projection display device to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide an ultra-short-focus double-reflection virtual reality projection display device so as to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides an ultra-short burnt double reflection virtual reality projection display device, includes the frame, the inside of frame is fixed with the right side and throws equipment two, the inside of frame is fixed with right reflector one, one side of right reflector one is provided with right reflector two, one side inside that the frame kept away from right reflector two is fixed with right projection curtain, the bottom outer wall of frame has the regulation foot through threaded connection.

Further, the top of the frame is fixed with a top projection device, and the bottom inner wall of the frame is fixed with a ground projection screen.

Further, a first top reflector is fixed inside the frame.

Further, a first left projection device symmetrically installed with a second right projection device is fixed in the frame, and a left projection screen is fixed in the frame.

Further, a first left reflecting mirror is fixed inside the frame, and a second left reflecting mirror is arranged on one side of the first positive and negative reflecting mirror.

Further, the inside of frame is fixed with the orthographic device, the inside of frame is fixed with the orthographic projection curtain.

Furthermore, a first reversible mirror is fixed in the frame, and a second reversible mirror is arranged on one side of the first reversible mirror.

In the technical scheme, the ultra-short-focus double-reflection virtual reality projection display device provided by the utility model has the beneficial effects that: through the ultrashort burnt camera lens and the two mirror groups that set up, take right mirror group as the example, right mirror one and right mirror two, utilize right side throw equipment two send the image and reflect to right mirror two through right mirror one, right mirror two carries out the secondary reflection to the image on the right projection curtain, make virtual reality projection display device reduced the place that wholly occupies under the unchangeable circumstances of optical path, and then make virtual reality projection display device can use at little place, make virtual reality projection display device's application scope obtain increasing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic diagram of an overall structure of an embodiment of an ultrashort-focal dual-reflection virtual reality projection display device according to the present utility model.

Fig. 2 is a schematic diagram of a back structure of an embodiment of an ultrashort-focus dual-reflection virtual reality projection display device according to the present utility model.

Fig. 3 is a left-view optical path diagram provided by an embodiment of an ultrashort-focal double-reflection virtual reality projection display device.

Fig. 4 is a schematic diagram of a front view of an embodiment of an ultrashort-focal dual-reflection virtual reality projection display device according to the present utility model.

Reference numerals illustrate:

1 a frame, 2 a side projection device I, 3 a forward projection device, 4 a side projection device II, 5 a top projection device, 6 a left projection screen, 7 a ground projection screen, 8 a right projection screen, 9 a right reflector I, 10 a right reflector II, 11 an adjusting foot, 12 a main projection screen, 13 a front and back light mirror II, 14 a front and back light mirror I, 15 a left reflector I, 16 a left reflector II and 17 a top reflector.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the ultra-short-focus double-reflection virtual reality projection display device provided by the embodiment of the utility model comprises a frame 1, wherein a second side projection device 4 is fixed in the frame 1, a first right reflecting mirror 9 is fixed in the frame 1, a second right reflecting mirror 10 is arranged on one side of the first right reflecting mirror 9, a right projection screen 8 is fixed in one side, far away from the second right reflecting mirror 10, of the frame 1, and an adjusting foot 11 is connected to the outer wall of the bottom of the frame 1 through threads.

Specifically, in this embodiment, the frame 1 plays a role of fixing the projection device, the side projection device two 4 is fixed in the frame 1, the side projection device two 4 is a projector used for virtual reality projection in the prior art, the right mirror one 9 is fixed in the frame 1, an anti-fog film is plated on the right mirror one 9, the water fog condensation phenomenon caused by temperature change can be prevented, the right mirror two 10 is arranged on one side of the right mirror one 9, the right projection screen 8 is fixed in one side of the frame 1 far away from the right mirror two 10, the right mirror one 9 and the right mirror two 10 jointly form a right double mirror group, an image sent by the side projection device two 4 is reflected onto the right mirror two 10 through the right mirror one 9, the right mirror two 10 secondarily reflects the image onto the right projection screen 8, the bottom outer wall of the frame 1 is provided with an adjusting foot 11 through threaded connection, and the adjusting foot 11 is convenient for adjusting the level of the frame 1.

According to the ultra-short-focus double-reflection virtual reality projection display device, the first right reflecting mirror 9 and the second right reflecting mirror 10 are arranged, the second side projection device 4 sends out the image to be reflected to the second right reflecting mirror 10 through the first right reflecting mirror 9, the second right reflecting mirror 10 reflects the image to the right projection screen 8 for the second time, so that the whole occupied field of the virtual reality projection display device is reduced under the condition that the optical path is unchanged, the virtual reality projection display device can be used in a small field, and the application range of the virtual reality projection display device is increased.

In another embodiment provided by the utility model, the top of the frame 1 is fixed with the top projection device 5, the bottom inner wall of the frame 1 is fixed with the ground projection screen 7, and the frame 1 is also fixed with the top reflector 17 matched with the top projection device 5, so that an image generated by the top projection device 5 is projected onto the ground projection screen 7 through primary reflection of the top reflector 17.

In another embodiment provided by the utility model, a first side projection device 2 symmetrically installed with a second side projection device 4 is fixed in the frame 1, a left projection screen 6 is fixed in the frame 1, a first left reflecting mirror 15 is fixed in the frame 1, a second left reflecting mirror 16 is arranged on one side of the first left reflecting mirror 15, an image sent by the first side projection device 2 is reflected to the second left reflecting mirror 16 through the first left reflecting mirror 15, the second left reflecting mirror 16 secondarily reflects the image to the left projection screen 6, and the first left reflecting mirror 15 and the second left reflecting mirror 16 jointly form a left double reflecting mirror group.

In still another embodiment of the present utility model, a front projection device 3 is fixed inside a frame 1, a front projection screen 12 is fixed inside the frame 1, a first and second front mirrors 14 are fixed inside the frame 1, a second front mirror 13 is disposed on one side of the first front mirror 14, an image sent by the front projection device 3 is reflected to the second front mirror 13 through the first front mirror 14, the second front mirror 13 reflects the image onto the main projection screen 12 for a second time, the first front mirror 14 and the second front mirror 13 form a front double-mirror group together, and simultaneously, the second front mirror 13, the second left mirror 16 and the second right mirror 10 can perform angle adjustment, so that the virtual reality projection display device is convenient to debug when in use, and meanwhile, the front projection device 3, the first side projection device 2 and the second side projection device 4 all use 0.36 ultra-short focal lenses.

Working principle: when virtual reality projection display is needed, the first side projection device 2 sends out an image to be reflected to the second left reflector 16 through the first left reflector 15, and the second left reflector 16 reflects the image to the left projection screen 6 for the second time; the forward projection device 3 sends out an image to be reflected to a second positive and negative lens 13 through a first positive and negative lens 14, and the second positive and negative lens 13 secondarily reflects the image to the main projection screen 12; the image sent by the second side projection device 4 is reflected to the second right reflector 10 through the first right reflector 9, the second right reflector 10 secondarily reflects the image to the right projection screen 8, and the image generated by the top projection device 5 is projected to the ground projection screen 7 after being primarily reflected by the top reflector 17, so that a display space is formed by the left projection screen 6, the ground projection screen 7, the right projection screen 8 and the front projection screen 12 in a splicing mode, and virtual images are displayed. The projection screen and the projection equipment for projection are arranged on the frame 1, the projection surfaces of the projection screen are positioned on the surface of a frame body formed by the projection screens, gaps among the projection screens are smaller than 0.02mm, the projection equipment adopts a 0.36 ultra-short focal lens, double reflection is combined, the occupied area of the system is greatly reduced, the field space is effectively saved, and the applicable scene of the whole system is improved.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides an ultra-short burnt double reflection virtual reality projection display device, its characterized in that, includes frame (1), the inside of frame (1) is fixed with side and throws equipment two (4), the inside of frame (1) is fixed with right reflector one (9), one side of right reflector one (9) is provided with right reflector two (10), one side inside that right reflector two (10) were kept away from to frame (1) is fixed with right projection curtain (8), the bottom outer wall of frame (1) has regulation foot (11) through threaded connection.

2. The ultra-short-focus double-reflection virtual reality projection display device according to claim 1, characterized in that the top of the frame (1) is fixed with a top projection device (5), and the bottom inner wall of the frame (1) is fixed with a ground projection screen (7).

3. The ultra-short-focus double-reflection virtual reality projection display device according to claim 1, characterized in that a first side projection device (2) symmetrically installed with a second side projection device (4) is fixed in the frame (1), and a left projection screen (6) is fixed in the frame (1).

4. The ultra-short-focus double-reflection virtual reality projection display device according to claim 1, characterized in that the interior of the frame (1) is fixed with a front projection device (3), and the interior of the frame (1) is fixed with a front projection screen (12).

5. The ultra-short focal double-reflection virtual reality projection display device according to claim 1, characterized in that a first and second positive and second negative mirrors (13) are fixed in the frame (1), and one side of the first positive and second mirrors (14) is provided.

6. The ultra-short-focus double-reflection virtual reality projection display device according to claim 1, characterized in that a left mirror one (15) is fixed inside the frame (1), and a left mirror two (16) is arranged on one side of the left mirror one (15).