TWI585503B - Interactive projection apparatus - Google Patents

Description

Interactive projection device

The invention relates to an interactive projection device; in particular, to an innovative structure designer of a projection range of a projection on-screen image sensing device that completely covers the entire image projection device.

According to the current interactive projection device, as shown in FIG. 1 , a main body 10 is generally included. The main body 10 is provided with an operation unit (not shown); the front side of the main body 10 And an image projection device (not shown) and an image sensing device (not shown) are respectively disposed, the image projection device and the image sensing device are respectively electrically connected to the operation unit, wherein the projection screen The upper projection unit 20 is provided with a projection range 21 for displaying an image, and the image projection device can project a sensing range 22 for the interactive operation on the projection screen 20.

When operating, the user can use a finger to directly touch or use a device that can specify a coordinate position on the projection screen 20, such as a laser pointer that can emit a light beam and generate a light spot on the projection screen 20. The image sensing device can sense data such as a touch point or a coordinate position of the light spot and a contact time, and transmit the data to the arithmetic unit, and the data processing unit processes the data transmitted by the image sensing device. After that, the image data that the user wants to project (draw and drop) can be transmitted to the image projection device, and projected and displayed in the projection range 21 of the projection screen 20, thereby generating the function of projection interaction. effect.

However, the conventional structure has found that the following problems and drawbacks still exist in the practical application experience: the projection range 21 and the sensing range 22 of the conventional interactive projector are usually matched settings, and of course, the initial use will not There are too many problems, but as people's requirements for the quality of projected images continue to increase, many image files are displayed in a 16:9 format, and the display blocks are much flatter than the traditional 4:3 display blocks; The image clarity and image size are improved. Due to the continuous innovation of image digitization technology, some people have gradually abandoned Full HD to pursue 4K image quality. Due to the large audio and video files, the projected area is obviously larger. Thus, the case where the sensing range 22 cannot completely cover the projection range 21 is generated, and the operation dead zone 23 is generated. If the manipulation coordinate falls on the operation dead zone 23, the effect of the interactive operation cannot be produced. The interactive projection device completely loses the functionality it should provide.

Therefore, in view of the problems existing in the above-mentioned conventional technologies, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goals and directions of breakthrough.

In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the inventor has finally obtained the practical invention.

The technical feature of the present invention is mainly the interactive projection device, a main structure body, and an operation unit is disposed in the main structure body; an image projection device is installed on the front side of the main structure body, And electrically connected to the computing unit; the image projection device is configured to project a display image on a projection screen The image sensing device is mounted on the front side of the main structure and electrically connected to the computing unit; the image projection device is configured to project an interaction on the projection screen a sensing range of operation; at least one optical lens, the at least one optical lens is mounted in the image sensing device; and the at least one optical lens has a function of viewing angle amplification.

The main effect and advantage of the present invention is that the function of the angle of view provided by the at least one optical mirror can be utilized, so that the sensing range of the image sensing device on the projection screen completely covers the projection range of the entire image projection device, and the interaction is not achieved. The purpose of distortion.

10‧‧‧Host body

20‧‧‧Projection screen

21‧‧‧Projection range

22‧‧‧Sensing range

23‧‧‧Operation blind spot

30‧‧‧Interactive projection equipment

31‧‧‧Main structure

32‧‧‧ arithmetic unit

33‧‧‧Image projection device

40‧‧‧Image sensing device

41‧‧‧Optical lenses

411‧‧‧ rod body

412‧‧‧Transmission Department

42‧‧‧External framework

421‧‧‧ Window

422‧‧‧ fixed board

43‧‧‧Sensor unit

431‧‧‧Cylinder

432‧‧‧ Ribs

44‧‧‧ fixed board

441‧‧‧Perforation

442‧‧‧through slot

A‧‧‧ projection screen

B‧‧‧Projection range

C‧‧‧Sensing range

Fig. 1 is a schematic diagram showing the overlapping of the projection range and the sensing range projected by the image projection device and the image sensing device of the conventional interactive projection device.

Figure 2 is a perspective view of the present invention.

Figure 3 is a basic control flow chart of the present invention.

Figure 4 is an exploded perspective view of the image sensing device of the present invention.

Figure 5 is a schematic diagram showing the overlapping of the projected projection range and the sensing range of the image projection device and the image sensing device of the present invention.

Referring to Figures 2, 3, 4 and 5, which are preferred embodiments of the interactive projection apparatus of the present invention, such embodiments are for illustrative purposes only and are not limited by the structure in the patent application; The interactive projection device 30 includes a main structure body 31, and an arithmetic unit 32 is disposed in the main structure body 31. The front side of the main structure body 31 is mounted on the front side of the main structure body 31. The image projection device 33 is internally and electrically connected to the image projection device 33 of the computing unit 32. The image projection device 33 is configured to project a projection range B of a display image on a projection screen A; and is disposed inside the front side of the main structure body 31. The image sensing device 40 is electrically connected to the image sensing device 40 of the computing unit 32. The image sensing device 40 is configured to project a sensing range C for interactive operation on the projection screen A; at least one optical lens 41 is mounted. The image sensing device 40 is disposed in the image sensing device 40. The at least one optical lens 41 has a function of viewing angle amplification, so that the sensing range C of the image sensing device 40 on the projection screen A completely covers the projection range B of the entire image projection device 33. .

The image sensing device 40 includes a frame 42 mounted on the main structure 31. The outer frame 42 defines a window 421, and a fixed plate 422 is respectively disposed on each side of the window 421. The two fixing plates 422 are parallel to each other; the at least one optical lens 41 is disposed in the outer frame 42 and coaxially corresponding to the window 421; the at least one optical lens 41 includes a rod 411 disposed between the two fixing plates 422. And a light transmitting portion 412 connected to the rod body 411, wherein the light transmitting portion 412 is partially received in the window 421. The light transmitting portion 412 of the at least one optical lens 41 is a concave lens.

The image sensing device 40 further includes a sensing unit 43 mounted on the rear of the at least one optical lens 41 in a coaxially corresponding manner, and configured to position the at least one optical with the outer frame 42 Lens 41. The image sensing device 40 further includes a fixing plate 44 mounted on the outer frame 42 to mount the outer frame 42 together with the at least one optical lens 41 and the sensing unit 43 on the main structure. On body 31. The fixing plate 44 is formed with two through holes 441, and the sensing unit 43 is provided with two cylinders 431, and each of the cylinders 431 is received in a corresponding through hole 441, thereby limiting the sensing. The relative position between the unit 43 and the fixing plate 44; the fixing plate 44 A rib 432 is formed on the sensing unit 43 , and the rib 432 is disposed in the through slot 442 to limit the sensing unit 43 and the fixing plate 44 . Relative position.

The light transmissive portion 412 of the at least one optical lens 41 has the structure and function of the concave lens, and the characteristics of the diverging light and the viewing angle amplification by the concave lens are used to expand the sensing range C formed by the image sensing device 40 on the projection screen A. The coverage area of the image sensing device 40 on the projection screen A completely covers the projection range B of the entire image projection device 33, and eliminates the practical effect of eliminating the blind area 23 of the interactive interactive projection device.

Advantages of the Invention: The "interactive projection device" disclosed in the present invention mainly enables the present invention to be compared with the conventional structure proposed in the [Prior Art] by the innovative unique structural form and technical features of the at least one optical lens. Providing the effect of the angle of view amplification, thereby expanding the coverage area of the sensing range formed by the image sensing device on the projection screen, so that the sensing range of the image sensing device on the projection screen completely covers the projection range of the entire image projection device, thereby eliminating The practical progress of the blind operation area of the interactive projection device.

30‧‧‧Interactive projection equipment

31‧‧‧Main structure

33‧‧‧Image projection device

40‧‧‧Image sensing device

Claims (9)

An interactive projection device, comprising: a main structure body; an operation unit disposed in the main structure body; an image projection device mounted on the front side of the main structure body and electrically connected to the An image sensing device is configured to project a projection range of a display image on a projection screen; an image sensing device is disposed inside the front side of the main structure body and electrically connected to the image sensing device The image sensing device is configured to project a sensing range for the interactive operation on the projection screen; at least one optical lens, the at least one optical lens is mounted in the image sensing device; The optical lens system has the function of viewing angle amplification, so that the sensing range of the image sensing device on the projection screen completely covers the projection range of the entire image projection device. The interactive projection device of claim 1, wherein the image sensing device comprises a frame mounted on the main structure, the outer frame is formed with a window, and the at least one optical lens is mounted. It is disposed in the outer frame and coaxially corresponds to the window. The interactive projection apparatus of claim 2, wherein the at least one optical lens comprises a light transmitting portion, and the light transmitting portion is partially received in the window; the light transmitting portion is a concave lens . An interactive projection apparatus as described in claim 3, wherein the outer frame is attached to A fixing plate is disposed on each side of the window, and the two fixing plates are parallel to each other; the at least one optical lens comprises a rod disposed between the two fixing plates, and the light transmitting portion is connected to the rod body . The interactive projection device of claim 2, 3 or 4, wherein the image sensing device comprises a sensing unit, the sensing unit is mounted on the at least one optical lens in a coaxially corresponding manner. The rear side and the outer frame clamp are positioned to position the at least one optical lens. The interactive projection apparatus of claim 5, further comprising a fixing plate mounted on the outer frame, thereby mounting the outer frame together with the at least one optical lens and the sensing unit On the main structure. The interactive projection device of claim 6, wherein the fixing plate is formed with two perforations, and the sensing unit is provided with two cylinders, and each column system is accommodated in a corresponding one. In the perforation, the relative position between the sensing unit and the fixed plate is limited. The interactive projection apparatus of claim 6, wherein the fixing plate is formed with an elongated slot, and the sensing unit is provided with a rib, and the rib is inserted into the slot. In order to limit the relative position between the sensing unit and the fixed plate. The interactive projection apparatus of claim 7, wherein the fixing plate is formed with an elongated slot, and the sensing unit is provided with a rib, and the rib is inserted into the slot. In order to limit the relative position between the sensing unit and the fixed plate.