CN212909828U

CN212909828U - DLP laser rear-projection all-in-one machine

Info

Publication number: CN212909828U
Application number: CN202021656824.1U
Authority: CN
Inventors: 王朋
Original assignee: Zhejiang Weseni Technology Co Ltd
Current assignee: Zhejiang Weseni Technology Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-04-06
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a DLP laser rear-projection all-in-one, adjust platform, DLP laser light source, speculum including casing, slight lens screen, electronic six. Through setting up slight lens screen on the casing for only need set up a speculum in the casing and can throw the laser beam that DLP laser light source launches to slight lens screen on, this kind of mode of setting up can avoid the light diffraction phenomenon effectively, can effectively shorten the required thickness of casing simultaneously. Meanwhile, the six-axis adjusting platform is arranged in the shell, the DLP laser light source is installed on the six-axis adjusting platform, and the six-axis adjusting platform can be controlled by an external signal to adjust the horizontal position, the height and the projection angle of the DLP laser light source, so that the function of conveniently debugging the DLP laser rear projection all-in-one machine is realized, and the problems of light diffraction phenomenon and difficult debugging of the existing laser rear projection television are solved.

Description

DLP laser rear-projection all-in-one machine

Technical Field

The utility model belongs to the technical field of the optics rear-projection, especially, relate to a DLP laser rear-projection all-in-one.

Background

The projection device is a device that can project images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, and other devices through different interfaces to play corresponding video signals for viewing. Projection devices are widely used in homes, offices, schools, and entertainment venues.

The projection can be divided into a front projection and a rear projection, wherein the rear projection is that the installation position of the projector and the audience are respectively positioned at two sides of the screen, light emitted by the projector is projected to the screen from one side of the screen, and the light penetrates through the screen and enters the eyes of the audience.

The back projection television is a projection display device widely applied in the field of large screen display, and has the outstanding advantages of large screen size, high picture definition, high cost performance, energy conservation, power conservation and the like compared with a liquid crystal flat panel television. Generally, the interior space of a rear projection television is relatively large. The optical machine is the core component of the back projection television and is composed of a laser processing device, a display device (LCOS, LCD, DMD), a color combination system, a projection lens and the like. The main function is to control the display device by the input electric signal, so as to achieve the purpose of modulating the laser and leading the uniform laser beam to carry the image signal, and the laser beam is projected by the projection lens. The laser television is also internally provided with a laser light source which is a power supply component of the laser television. The signal processing circuit board is also an important part in the rear projection television and is mainly responsible for processing various input signals and outputting the processed signals to the optical machine. In addition, the back projection TV set has also power supply circuit board to supply power to the light machine and the signal processing circuit. The back of the back projection television is provided with a trapezoidal reflector close to the inner side of the shell, and the trapezoidal reflector is used for reflecting light rays projected by the lens of the optical machine to the screen so as to form images on the screen. The screen is arranged right in front of the rear projection television, generally consists of a Fresnel screen and a cylindrical screen, and is mainly used for displaying images and widening the visual angle. This projection results in a large overall thickness of the rear projection television.

The laser back projection television on the market adopts the principle of double-reflection mirror in the aspect of ultra-thinning, the light diffraction phenomenon is easy to generate in the mode, and the components such as the laser light source of the existing laser back projection television are fixedly installed, so that the debugging is troublesome.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a DLP laser rear-projection all-in-one to solve the light diffraction phenomenon of current laser rear-projection TV and debug the difficult problem.

In order to solve the above problem, the technical scheme of the utility model is that:

the utility model discloses a DLP laser rear projection all-in-one machine, which comprises a shell, a fine lens screen, an electric six-axis adjusting platform, a DLP laser light source and a reflector;

the inner cavity of the shell comprises a first side surface used for mounting the fine lens screen and a second side surface opposite to the first side surface; the fine lens screen is arranged on a mounting opening reserved on the first side face; the reflector is arranged on the second side surface;

the electric six-axis adjusting platform is arranged on the bottom surface of the inner cavity of the shell; the DLP laser light source is arranged at the output end of the electric six-axis adjusting platform, and the projection direction of the DLP laser light source faces the reflector; the electric six-axis adjusting platform is used for receiving external signals and adjusting the horizontal position, the height and the projection angle of the DLP laser light source;

in the working state, the laser beam projected by the DLP laser light source is projected onto the reflector and reflected to the fine lens screen by the reflector.

The utility model discloses a DLP laser rear projection all-in-one machine, the fine lens screen includes anti-reflection optics matrix layer, the optical imaging layer of laminating in anti-reflection optics matrix layer and the fine lens layer of laminating in the optical imaging layer; the fine lens layer is formed by arranging fine lenses with the thickness of 0.25-0.4mm in the transverse direction or the longitudinal direction.

The utility model discloses a DLP laser rear-projection all-in-one, the material on anti-reflection optics matrix layer is glass or ya keli.

The utility model discloses a DLP laser rear-projection all-in-one, the speculum is a vacuum coating speculum.

The utility model discloses a DLP laser rear projection all-in-one machine, the casing includes first casing and second casing; the first shell is provided with the mounting port; the second shell is buckled with the first shell and matched with the first shell to form the inner cavity.

The utility model discloses a DLP laser rear-projection all-in-one still includes the control unit, the control unit be used for output control signal extremely platform is adjusted to electronic six.

The utility model discloses a DLP laser rear-projection all-in-one, DLP laser light source's resolution ratio is 4K, 8K or 16K.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:

1. the utility model relates to an embodiment is through setting up slight lens screen on the casing for only need set up a speculum in the casing and can throw the laser beam that DLP laser light source launches to slight lens screen on, this kind of mode of setting can avoid the light diffraction phenomenon effectively, can effectively shorten the required thickness of casing simultaneously. Meanwhile, the six-axis adjusting platform is arranged in the shell, the laser light source is arranged on the six-axis adjusting platform, and the six-axis adjusting platform can be controlled by an external signal to adjust the horizontal position, the height and the projection angle of the laser light source, so that the function of conveniently debugging the DLP laser rear projection all-in-one machine is realized, and the problems of light diffraction phenomenon and difficult debugging of the existing laser rear projection television are solved.

2. In an embodiment of the present invention, the fine lens layer is formed by longitudinally or transversely arranging the fine lenses with a thickness of 0.25-0.4mm and an infinite physical size of one tenth of a pixel point, the focal length of the infinite micro fine lenses is not required for the incident light, the focal length is the distance from the light to the imaging point, and the light is equivalent to a reduction mirror for the front ambient light, so that the light is hardly influenced by the ambient light. The advantages are large size, anti-scratch, high definition, high brightness, anti-ambient light, anti-glare, high contrast, wide viewing angle (178 degrees vertical, 178 degrees left and right), and anti-solar effect under short focal length.

Drawings

Fig. 1 is a schematic diagram of a DLP laser rear projection all-in-one machine according to the present invention;

fig. 2 is a schematic diagram of the fine lens screen of the DLP laser rear projection all-in-one machine of the present invention.

Description of reference numerals: 1: a housing; 2: a fine lens screen; 201: an optical imaging layer; 202: a fine lens layer; 203: an anti-reflection optical matrix layer; 3: a mirror; 4: a DLP laser light source; 5: electronic six regulation platforms.

Detailed Description

The DLP laser rear projection all-in-one machine provided by the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.

Referring to fig. 1 and 2, in one embodiment, the DLP laser rear projection all-in-one machine comprises a housing 1, a fine lens screen 2, an electric six-axis adjusting platform 5, a DLP laser light source 4 and a reflector 3.

The inner cavity of the housing 1 comprises a first side for mounting the lenticular screen 2 and a second side arranged opposite to the first side. The lenticular screen 2 is mounted to a mounting opening reserved in the first side. The mirror 3 is provided on the second side. The electric six-axis adjusting platform 5 is arranged on the bottom surface of the inner cavity of the shell 1. DLP laser source 4 is installed in the output of electronic six regulation platforms 5, and DLP laser source 4's projection direction is towards speculum 3. The electric six-axis adjusting platform 5 is used for receiving external signals and adjusting the horizontal position, the height and the projection angle of the DLP laser light source 4. In the working state, the laser beam projected by the DLP laser light source 4 is projected onto the reflector 3 and reflected by the reflector 3 onto the microlens screen 2.

This embodiment is through setting up slight lens screen 2 on casing 1 for only need set up a speculum 3 in casing 1 and can throw the laser beam that DLP laser light source 4 launches to slight lens screen 2 on, this kind of mode of setting can avoid light diffraction phenomenon effectively, can effectively shorten the required thickness of casing 1 simultaneously. Meanwhile, a six-axis adjusting platform 5 is arranged in the shell 1, the DLP laser light source 4 is installed on the six-axis adjusting platform 5, and the six-axis adjusting platform 5 can be controlled by external signals to adjust the horizontal position, the height and the projection angle of the DLP laser light source 4, so that the function of conveniently debugging the DLP laser rear projection all-in-one machine is realized, and the problems of light diffraction phenomenon and difficult debugging of the existing laser rear projection television are solved.

The following further describes the specific structure of the present embodiment:

in this embodiment, microlens screen 2 includes optical imaging layer 201, antireflective optical matrix layer 203, and microlens layer 202. The fine lens layer 202 is formed by arranging fine lenses with a thickness of 0.25 to 0.4mm in the transverse direction or the longitudinal direction. The numerous tiny micro lenses have no requirement on the focal length of the incident light, the focal length of the tiny micro lenses is the distance between the light and an imaging point, and the tiny micro lenses are the reduction lenses for the front ambient light, so the tiny micro lenses are hardly influenced by the ambient light. The advantages are large size, anti-scratch, high definition, high brightness, anti-ambient light, anti-glare, high contrast, wide viewing angle (178 degrees vertical, 178 degrees left and right), and anti-solar effect under short focal length.

The optical imaging layer 201 is used for converging and fusing the imaging light paths in the same direction, and the anti-reflection optical matrix layer 203 is used for curing and supporting the imaging material to improve the light transmittance. Since optical imaging layer 201 and antireflective optics matrix layer 203 are prior art, they will not be described in detail here.

Furthermore, the material of the anti-reflection optical matrix layer 203 can be glass or acrylic, so as to ensure that the fine lens screen 2 is not deformed all the year round. The glass has better hardness and transmittance, and relatively speaking, the acrylic material has better transmittance, soft light, visual cleaning, excellent weather resistance, higher surface hardness and surface gloss, and better high-temperature performance.

The length of the fine lens screen 2 of the embodiment can be 80-200 m or even longer, the height is 3-5 m or even higher, and the size requirement of 120 inches or more can be met.

In the present embodiment, the DLP laser light source 4 is a DLP ultra-short focus laser light source, and the resolution may be 4K, 8K, or 16K. Of course, in other embodiments, the resolution of the laser light source may be various and is not limited in particular.

In the present embodiment, the mirror 3 is a primary vacuum coated mirror 3.

In the present embodiment, the housing 1 may specifically include a first housing 1 and a second housing 1. The first shell 1 is provided with a mounting opening. The second shell 1 is buckled with the first shell 1 and matched with the first shell to form an inner cavity.

In this embodiment, the electric six-axis adjusting platform 5 can be selected from various platforms with six degrees of freedom on the market, specifically, the driving member can be selected as a platform combined by a motor and a screw, and the screw has a self-locking performance in a driving manner of a thread, so that the DLP laser light source 4 can be ensured not to be shifted after being fixed in position. The DLP laser light source 4 can be adjusted in the up-down left-right front-back direction by arranging the electric six-axis adjusting platform 5, and the adjustment of the emitting angle of the DLP laser light source 4 can also be realized, for example, the image is rotated by 2-4 degrees or the image projected on the four corners of the left-up corner, the left-down corner, the right-up corner and the right-down corner is enlarged or reduced.

In this embodiment, the DLP laser rear-projection all-in-one machine further includes a control unit, and the control unit is configured to output a control signal to the electric six-axis adjusting platform 5. The control unit can be a remote controller, and can also be a device which can output a control signal, such as a mobile phone.

In this embodiment, a control chip may be disposed in the DLP laser rear-projection all-in-one machine, the control chip controls the image output of the DLP laser light source 4, and an operating system such as android is written in the control chip, so as to be convenient for a user to use. A connection port can also be arranged on the DLP laser rear-projection all-in-one machine, so that a television set-top box and other equipment can be connected through the port.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims

1. A DLP laser rear projection all-in-one machine is characterized by comprising a shell, a fine lens screen, an electric six-axis adjusting platform, a DLP laser light source and a reflector;

the control chip is in signal connection with the DLP laser light source and is used for controlling the image output of the DLP laser light source;

the shell is also provided with a connecting port for connecting external signal input equipment;

2. The DLP laser rear projection all-in-one machine according to claim 1, wherein the fine lens screen comprises an anti-reflection optical matrix layer, an optical imaging layer attached to the anti-reflection optical matrix layer, and a fine lens layer attached to the optical imaging layer; the fine lens layer is formed by arranging fine lenses with the thickness of 0.25-0.4mm in the transverse direction or the longitudinal direction.

3. The DLP laser rear-projection all-in-one machine according to claim 2, wherein the anti-reflection optical matrix layer is made of glass or acrylic.

4. The DLP laser rear-projection all-in-one machine according to claim 1, wherein the reflector is a primary vacuum coated reflector.

5. The DLP laser rear-projection kiosk as claimed in claim 1, wherein said housing comprises a first housing and a second housing; the first shell is provided with the mounting port; the second shell is buckled with the first shell and matched with the first shell to form the inner cavity.

6. The DLP laser rear-projection all-in-one machine according to claim 1, further comprising a control unit for outputting a control signal to said motorized six-axis adjustment stage.

7. The DLP laser rear-projection all-in-one machine according to claim 1, wherein the DLP laser light source has a resolution of 4K, 8K or 16K.