CN207752289U - DLP shows projection arrangement - Google Patents

Abstract

The utility model relates to a DLP display projection device. An optical-mechanical assembly is arranged in a box. The optical-mechanical assembly includes an optical-mechanical body and a lens. A reflector is arranged in the box. The reflector is used to reflect light emitted by the lens to a projection screen. superior. Since the lens is roughly an L-shaped lens, the size of the lens in the thickness direction of the cabinet is reduced, thereby reducing the thickness of the entire DLP display projection device, thus saving space. The adjustment frame assembly is used to adjust the movement of the optomechanical assembly along the up, down, left, right, front and back directions, so as to adjust the position of the optomechanical assembly, and then adjust the orientation and size of the image information reflected on the projection screen.

Description

DLP display projection device

technical field

The utility model relates to the technical field of projection devices, in particular to a DLP display projection device.

Background technique

DLP is the abbreviation of "Digital Light Processing", that is, digital light processing, which means that this technology first processes the image signal digitally, and then projects the light. It is based on the digital micromirror component developed by TI (Texas Instruments) - DMD (Digital Micromirror Device) to complete the technology of visual digital information display. To be more specific, DLP projection technology uses a digital micromirror chip (DMD) as the main key processing element to realize the digital optical processing process.

The principle is that the cold light source emitted by the UHP bulb passes through the condensation lens, and the light is uniformized through the Rod (light rod), and the processed light passes through a color wheel (Color Wheel), and the light is divided into RGB three colors (or RGBW Wait for more colors), some manufacturers use BSV liquid crystal splicing technology lens to filter the light transmission, and then project the color on the DMD chip from the lens, and finally reflect the image on the projection screen through the projection lens.

When traditional DLP display products are used in conference rooms or other small spaces, they will face the problem of thick DLP units and need to occupy a large space.

Utility model content

Based on this, it is necessary to provide a DLP display projection device that can effectively reduce the thickness and occupy space for the above technical problems.

A DLP display projection device, comprising:

box;

The projection screen is arranged on the box body;

The optical-mechanical assembly is arranged in the box, the optical-mechanical assembly includes an optical-mechanical main body and a lens, the lens is roughly an L-shaped lens, and the lens is arranged on the optical-mechanical main body;

An adjustment frame assembly is arranged in the box, the optical-mechanical assembly is arranged on the adjustment frame assembly, and the adjustment frame assembly is used to adjust the position of the optical-mechanical assembly; and

A reflection mirror is arranged in the box, and the reflection mirror is used for reflecting the light emitted by the lens onto the projection screen.

In one of the embodiments, the lens is a short-focus lens.

In one of the embodiments, the lens includes a first lens unit and a second lens unit, the first lens unit is arranged on the optical machine body, and the first lens unit is arranged along the thickness of the box The direction extends, the second camera head and the first camera head are set at an angle, and the angle ranges from 65° to 75°.

In one of the embodiments, the angle between the first lens head and the second lens head is 70°.

In one of the embodiments, the adjustment frame assembly includes a first adjustment plate, a fixed plate, a first adjustment rod and a first adjustment nut, and the first adjustment plate is movable along a direction perpendicular to the thickness of the box body. It is arranged on the box body, the fixing plate is fixed on the box body, the first adjusting rod is passed through the fixing plate, and one end is against the first adjusting plate, the first adjusting rod The adjusting nut is screwed on the other end of the first adjusting rod.

In one of the embodiments, the adjustment frame assembly further includes a second adjustment plate, a second adjustment rod and a second adjustment nut, the second adjustment plate is movably arranged on the first adjustment plate along the vertical direction Above, the second adjusting rod is passed through the second adjusting plate and one end is fixed on the first adjusting plate, and the second adjusting nut is screwed on the other end of the second adjusting rod.

In one of the embodiments, the number of the second adjustment rods and the second adjustment nuts are four respectively, and the four second adjustment rods are located at the four corners of the second adjustment plate, one of the The second adjusting nuts respectively correspond to one of the second adjusting rods.

In one of the embodiments, a base is also included, and the box is arranged on the base.

In one of the embodiments, the bottom of the base is provided with supporting feet.

In one of the embodiments, it further includes an air guide channel, and the air guide channel is used for communicating the inside of the box with the outside of the box.

The above-mentioned DLP display projection device has at least the following advantages:

The optical-mechanical assembly is arranged in the box. The optical-mechanical assembly includes the optical-mechanical main body and the lens. The reflector is arranged in the box. The reflector is used to reflect the light emitted by the lens to the projection screen. Since the lens is roughly an L-shaped lens, the size of the lens in the thickness direction of the cabinet is reduced, thereby reducing the thickness of the entire DLP display projection device, thus saving space. The adjustment frame assembly is used to adjust the movement of the optomechanical assembly along the up, down, left, right, front and back directions, so as to adjust the position of the optomechanical assembly, and then adjust the orientation and size of the image information reflected on the projection screen.

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of a DLP display projection device in an embodiment;

FIG. 2 is a three-dimensional schematic diagram of another viewing angle of the DLP display projection device shown in FIG. 1;

Fig. 3 is a side view of the DLP display projection device shown in Fig. 2;

FIG. 4 is a partial schematic diagram of the DLP display projection device shown in FIG. 1;

FIG. 5 is a schematic structural diagram of the adjustment mechanism in FIG. 4 .

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below .

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

Please refer to FIG. 1 , a DLP display and projection device 10 in an embodiment can be applied in a meeting room or other small spaces, such as for teaching or meetings. Please refer to FIG. 2 and FIG. 3 , specifically, the DLP display projection device 10 includes a cabinet 100 , a projection screen 200 , an optical-mechanical assembly 300 , an adjustment frame assembly 400 and a reflector 500 .

The box body 100 includes a frame 110 and a box cover 120 , and the box cover 120 is disposed on the frame 110 to form a hollow box body 100 . The projection screen 200 is disposed on the box body 100, and the projection screen 200 is used for displaying image information. When in use, the projection screen 200 is facing the human body. A handle 130 is provided on the case cover 120 on both sides of the case body 100 adjacent to the projection screen 200 , and the entire DLP display projection device 10 can be lifted by the handle 130 .

The bottom of the box body 100 is also provided with a base 600 , the base 600 is used to support the box body 100 , and the box body 100 is arranged on the base 600 . The bottom of the base 600 is provided with a supporting foot 610 for supporting the base 600 . Specifically, the number of supporting feet 610 is four, and the four supporting feet 610 are respectively provided at four corners of the base 600 . The supporting feet 610 can be telescopic supporting feet 610 , so the overall height adjustment of the entire DLP display projection device 10 can be realized.

The optical-mechanical assembly 300 is disposed in the box body 100 . The optical-mechanical assembly 300 includes an optical-mechanical body 310 and a lens 320 . The lens 320 is roughly an L-shaped lens. The lens 320 includes a first lens part 321 and a second lens part 322 , the first lens part 321 is disposed on the optical engine main body 310 , and the first lens part 321 extends in the thickness direction of the cabinet 100 . The fact that the lens 320 is substantially an L-shaped lens can be interpreted as that the second lens part 322 and the first lens part 321 are arranged at an acute angle or at a right angle to form a substantially L-shaped lens.

For example, the second lens part 322 and the first lens part 321 are arranged at an angle α (as shown in FIG. 3 ), and the angle α ranges from 65° to 75°. For example, in the present embodiment, the value of the angle α is 70°. Therefore, in the case of realizing the same image information display, compared with the linear lens 320, the size of the L-shaped lens 320 in this embodiment in the thickness direction of the box 100 is smaller, so the DLP display projection can be reduced. The size of the whole device 10 in the thickness direction.

Specifically in this embodiment, the lens 320 can be a short-focus lens, which can further reduce the size of the DLP display projection device 10 in the thickness direction. The reflector 500 is disposed in the box body 100 , and the reflector 500 is used to reflect the light emitted by the lens 320 onto the projection screen 200 , so that image information is displayed on the projection screen 200 .

Please refer to FIG. 4 and FIG. 5 together. The adjustment frame assembly 400 is disposed in the box body 100 , the optomechanical assembly 300 is disposed on the adjustment frame assembly 400 , and the adjustment frame assembly 400 is used to adjust the position of the optomechanical assembly 300 . Specifically, the adjustment frame assembly 400 includes a first adjustment plate 410 , a fixing plate 420 , a first adjustment rod 430 , a first adjustment nut 440 , a second adjustment plate 450 , a second adjustment rod 460 and a second adjustment nut.

Specifically, the first adjusting plate 410 , the fixing plate 420 , the first adjusting rod 430 and the first adjusting nut 440 are used to adjust the horizontal movement of the optical mechanical assembly 300 relative to the box body 100 in the left and right directions to adjust the image on the projection screen 200 Information moves horizontally in the left-right direction. The second adjustment plate 450 , the second adjustment rod 460 and the second adjustment nut are used to adjust the vertical movement of the optomechanical assembly 300 relative to the box body 100 to adjust the image information on the projection screen 200 for scaling. Wherein, the left-right direction refers to the left-right direction of the user when the user faces the projection screen 200 , and the vertical direction is an absolute vertical direction.

The first adjusting plate 410 is movably arranged on the box body 100 along the thickness direction perpendicular to the box body 100, the fixing plate 420 is fixed on the box body 100, the first adjusting rod 430 is installed on the fixing plate 420, and one end is connected with the The first adjustment plate 410 is offset, and the first adjustment nut 440 is screwed on the other end of the first adjustment rod 430 .

Referring to FIG. 5 , for example, when the first adjusting nut 440 is turned clockwise, the first adjusting plate 410 can move to the right relative to the box body 100 , and the image information on the projection screen 200 can move to the right accordingly. When the first adjusting nut 440 is turned counterclockwise, the first adjusting plate 410 can be moved to the left relative to the box body 100 , and the image information on the projection screen 200 can be moved to the left correspondingly.

The second adjustment plate 450 is movably arranged on the first adjustment plate 410 along the vertical direction, the second adjustment rod 460 is passed through the second adjustment plate 450 and one end is fixed on the first adjustment plate 410, the second adjustment nut It is screwed on the other end of the second adjusting rod 460 .

For example, when the second adjustment nut is turned clockwise, the second adjustment plate 450 can be moved downward toward the first adjustment plate 410 , and the image information on the projection screen 200 can be enlarged. When the second adjustment nut is turned counterclockwise, the second adjustment plate 450 can be moved upward in a direction away from the first adjustment plate 410 , and the image information on the projection screen 200 is reduced.

Specifically in this embodiment, the number of the second adjusting rod 460 and the second adjusting nut are four respectively, and the four second adjusting rods 460 are located at the four corners of the second adjusting plate 450, and one second adjusting nut corresponds to one The second adjusting rod 460 . The four second adjusting nuts are respectively nut C, nut D, nut E and nut F (as shown in FIG. 5 ).

If any two of the four nuts C, D, E, and F are adjusted at the same time, different results will be obtained. For example, if the nuts C and E are adjusted instantaneously at the same time, the left side of the image information will be enlarged. Conversely, if the nuts C and E are adjusted counterclockwise at the same time, the left side of the image information will be reduced. At the same time, adjust the nuts D and F clockwise, and the right side of the image information will be enlarged. Conversely, if the nuts D and F are adjusted counterclockwise at the same time, the right side of the image information will be reduced.

For example, if the nuts C and D are adjusted instantaneously at the same time, the upper part of the image information is enlarged. On the contrary, if the nuts C and D are adjusted counterclockwise at the same time, the upper part of the image information will be reduced. At the same time, adjust the nuts E and F clockwise, and the lower part of the image information will be enlarged. On the contrary, if the nuts E and F are adjusted counterclockwise at the same time, the lower part of the image information will be reduced.

Please refer to FIG. 2 and FIG. 4 again. The DLP display projection device 10 also includes an air guide channel 700. The air guide channel 700 is used to connect the inside of the box body 100 with the outside of the box body 100, and can introduce external cold air into the box body 100. This is beneficial to the heat dissipation inside the cabinet 100 of the DLP display projection device 10 , thereby prolonging the service life of the DLP display projection device 10 .

The above-mentioned DLP display projection device 10 has at least the following advantages:

The optical-mechanical assembly 300 is arranged in the box body 100. The optical-mechanical assembly 300 includes the optical-mechanical main body 310 and the lens 320. The reflector 500 is arranged in the box body 100. The reflector 500 is used to reflect the light emitted by the lens 320 to the projection screen. 200 on. Since the lens 320 is roughly an L-shaped lens 320 , the size of the lens 320 in the thickness direction of the box body 100 is reduced, thereby reducing the thickness of the entire DLP display projection device 10 , thus saving space. The adjustment frame assembly 400 is used to adjust the movement of the optomechanical assembly 300 in the up, down, left, right, front and rear directions, so as to adjust the position of the optomechanical assembly 300 , and then adjust the orientation and size of the image information reflected on the projection screen 200 .

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a kind of DLP shows projection arrangement, which is characterized in that including：

Babinet；

Projection screen is set on the babinet；

Lighting apparatus component is set in the babinet, and the lighting apparatus component includes optical machine main body and camera lens, the camera lens substantially L Type camera lens, the camera lens are set in the optical machine main body；

Adjustment frame assembly is set in the babinet, and the lighting apparatus component is set in the adjustment frame assembly, the adjustment frame Component is used to adjust the position of the lighting apparatus component；And

Speculum is set in the babinet, and the speculum is used to the light that the camera lens is launched reflexing to the throwing On shadow screen.

2. DLP according to claim 1 shows projection arrangement, which is characterized in that the camera lens is short-focus lens.

3. DLP according to claim 1 shows projection arrangement, which is characterized in that the camera lens include the first camera lens part and Second camera lens part, first camera lens part are set in the optical machine main body, and first camera lens part is along the thickness of the babinet It spends direction to extend, second camera lens part and the angled setting of the first camera lens part, the value range of the angle is 65 °~ 75°。

4. DLP according to claim 3 shows projection arrangement, which is characterized in that first camera lens part and described second Angle between camera lens part is 70 °.

5. DLP as claimed in any of claims 1 to 4 shows projection arrangement, which is characterized in that the adjustment frame group Part includes the first adjustment plate, fixed plate, the first adjusting rod and the first adjusting nut, and the first adjustment plate is along perpendicular to the case The thickness direction of body is movably arranged on the babinet, and the fixed plate is fixed on the babinet, and described first is adjusted Bar is arranged in the fixed plate, and one end offsets with the first adjustment plate, and the first adjusting nut spiral shell is set to described the The other end of one adjusting rod.

6. DLP according to claim 5 shows projection arrangement, which is characterized in that the adjustment frame assembly further includes second Adjustment plate, the second adjusting rod and the second adjusting nut, the second adjustment plate are set to described movably in a vertical direction In one adjustment plate, second adjusting rod is arranged on the second adjustment plate and one end is fixed on the first adjustment plate, The second adjusting nut spiral shell is set to the other end of second adjusting rod.

7. DLP according to claim 6 shows projection arrangement, which is characterized in that second adjusting rod and described second The quantity of adjusting nut is respectively four, and four second adjusting rods are located at four corners of the second adjustment plate, an institute It states the second adjusting nut and corresponds to second adjusting rod respectively.

8. DLP as claimed in any of claims 1 to 4 shows projection arrangement, which is characterized in that further include pedestal, The babinet is set on the pedestal.

9. DLP according to claim 8 shows projection arrangement, which is characterized in that the bottom of the pedestal is provided with support Foot.

10. DLP as claimed in any of claims 1 to 4 shows projection arrangement, which is characterized in that further include wind-guiding Channel, the air-guiding aisle is for being connected in the babinet and outside the babinet.