A light engine structure with uniform brightness and a projector

Abstract

The embodiment of the application relates to the technical field of projectors, and discloses a light-mechanism structure with uniform brightness and a projector, which comprises a projector main body, a light-mechanism main body, a sound component and a fan, the front end of the projector main body is provided with the light-mechanism main body, the light-mechanism main body adopts an open design, the sound component is a split type design and comprises a sound cavity and an audio connecting component, and the fan component comprises symmetrical air extraction structures arranged on both sides of the light-mechanism main body. Through the above mode, the air in the light-mechanism main body flows uniformly, the temperature difference of the screen is effectively reduced, the change of optical material optical characteristics caused by uneven temperature is reduced, the brightness uniformity of a projection picture is significantly improved, the influence of sound vibration on the light-mechanism main body is avoided through the split type sound component design, the picture shaking problem is reduced, and the sound cavity space is increased through the split type layout.

Description

Technical Field

[0001] This application relates to the field of projector technology, specifically to an optical engine structure with uniform brightness and a projector. Background Technology

[0002] Currently, projectors are widely used in diverse scenarios such as office presentations, home entertainment, and education, thanks to their flexible application scenarios and ever-improving image quality. As the core imaging component of a projector, the performance of the optical engine directly determines the quality of the projected image, and brightness uniformity is a key indicator for measuring projection effect. A uniform and consistent brightness distribution allows for the complete presentation of image details, avoiding visual fragmentation caused by areas that are too bright or too dark, thus enhancing the viewing experience.

[0003] However, existing projector optical engine technology has many problems that urgently need to be solved: Brightness uniformity challenge: Traditional optical engines have complex internal optical paths, and heat from the light source tends to accumulate locally, resulting in large temperature differences in different areas of the optical engine module (such as DMD chip and LCD panel). Uneven temperature causes differences in the optical properties (refractive index and transmittance) of optical materials (such as polarizers and lenses), resulting in bright spots and dark areas in the projected image. Brightness uniformity is difficult to exceed the 85% threshold, which cannot meet the requirements of high-end office and home theater for consistent image quality.

[0004] Defects in audio and projection integration: Most existing projectors use built-in integrated speakers. Due to the limited space of the optical engine structure, the speaker cavity is small and the acoustic layout is simple, making it impossible to form a stereo surround sound effect. Moreover, the vibrations generated when the speakers are working are easily transmitted to the optical engine, causing resonance of optical components, resulting in slight shaking of the picture and affecting the viewing experience.

[0005] In summary, developing an optomechanical structure that balances brightness uniformity and high-quality audio integration is crucial for overcoming projector performance bottlenecks and driving industry upgrades. Therefore, those skilled in the art have provided an optomechanical structure and projector with uniform brightness to address the problems mentioned in the background section. Utility Model Content

[0006] In view of the above problems, this application provides a uniform brightness optical engine structure and projector, including a projector body, an optical engine body, an audio component and a fan. The optical engine body is located at the front end of the projector body. The optical engine body adopts an open design and has an internal optical path system containing a light source, a lens group and a display chip, which facilitates air circulation and reduces heat accumulation. The symmetrical exhaust structure on both sides of the optical engine body contains heat dissipation components. Through symmetrical exhaust, the air flow inside the optical engine is uniform, improving the screen temperature uniformity and thus optimizing the brightness uniformity. The exhaust structure is made of metal and is fixed to the optical engine body by bolts.

[0007] According to one aspect of the embodiments of this application, a uniform brightness optical engine structure and a projector are provided, the uniform brightness optical engine structure and projector comprising: a fan fixedly installed on the optical engine body near the heat generation areas of the light source and the display chip.

[0008] In one alternative approach, the fan airflow and speed can be adjusted according to the thermal load of the optical engine to ensure that the components operate at a suitable temperature. The main body of the projector includes the aforementioned optical engine structure with uniform brightness, as well as conventional components such as the casing, power supply, and control circuit. By integrating this optical engine structure, a projection effect with uniform brightness and efficient heat dissipation can be achieved.

[0009] According to another aspect of the embodiments of this application, a uniform brightness optical engine structure and a projector are provided, including: a speaker assembly, which is a split design, comprising a speaker cavity and an audio connection component. The speaker cavity is separate from the optical engine body and can be flexibly arranged to optimize acoustic effects. The audio connection component realizes audio signal transmission. A speaker base is provided below the speaker cavity, and a button slot is provided on the speaker base. The speaker cavity is inserted into the button slot. A metal contact (connecting to the live wire) is fixedly connected to the bottom of the speaker cavity. A spiral metal ring (connecting to the neutral wire) is fixedly connected to the outer side of the bottom of the speaker cavity. A component is fixedly connected to the inner side of the bottom of the button slot. A metal threaded sleeve (connecting the neutral wire) is fixedly connected to a metal tongue (connecting the live wire) at the center of the bottom of the slot. The speaker cavity can be screwed clockwise into the slot, allowing the metal contact to engage with the metal tongue. The spiral metal ring fits snugly against the metal threaded sleeve. An upper rubber pad is fixedly connected to the upper end of the speaker base, and a lower rubber pad is fixedly connected to the lower end. Side plates are fixedly connected to both sides of the speaker base, and a carrying handle is fixedly connected to one side of each side plate. A power interface is located on the right side of the speaker base. The split design avoids the impact of speaker vibration on the optical engine, increases the cavity space to improve sound quality, and the lower rubber pad acts as a buffer to reduce noise caused by speaker vibration.

[0010] This application embodiment, through its open design of the optical engine body and symmetrical exhaust cooling components on both sides, enables uniform airflow within the optical engine body, effectively reducing screen temperature differences and minimizing changes in the optical properties of optical materials caused by uneven temperature. This significantly improves the brightness uniformity of the projected image, overcoming the limitations of traditional technologies and meeting the high image quality requirements of high-end application scenarios. In addition, the separate speaker component design avoids the impact of speaker vibration on the optical engine body, reducing image jitter. At the same time, the separate layout increases the speaker cavity space, which is conducive to forming richer and more three-dimensional surround sound effects, enhancing the projector's audio experience and meeting the "audio-visual integration" needs of smart home scenarios.

[0011] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0012] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This invention provides a perspective view of a uniform brightness optical mechanism structure and the optical mechanism body of a projector according to an embodiment of the present invention. Figure 2 This illustration shows a three-dimensional view of a uniformly bright optomechanical structure and a projector's acoustic cavity, as provided in an embodiment of the present invention.

[0013] The reference numerals in the detailed embodiments are as follows: 1-Projector main body; 2-Optical engine main body; 3-Heat dissipation component; 4-Speaker cavity; 5-Power interface; 6-Side panel; 7-Handle ring; 8-Speaker base; 9-Upper rubber pad; 10-Lower rubber pad. Detailed Implementation

[0014] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0016] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0019] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0020] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0021] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0022] Please see Figure 1 , Figure 1This illustration shows a perspective view of an embodiment of a uniform brightness optical engine structure and projector according to the present invention. The uniform brightness optical engine structure and projector include: a projector body 1, an optical engine body 2, an audio component, and a fan. The optical engine body 2 is located at the front end of the projector body 1. The optical engine body 2 adopts an open design and has an internal optical path system containing a light source, lens group, and display chip, which facilitates air circulation and reduces heat accumulation. Symmetrical exhaust structures on both sides of the optical engine body 2 contain heat dissipation components 3. Through symmetrical exhaust, the airflow inside the optical engine is uniform, improving the screen temperature uniformity and thus optimizing the brightness uniformity. The exhaust structures are made of metal and are fixed to the optical engine body 2 by bolts. Fans are fixedly installed on the optical engine body 2 near the heat-generating areas of the light source and display chip. The fan airflow and speed can be adjusted according to the thermal load of the optical engine to ensure that the components operate at a suitable temperature. The projector body 1 includes the aforementioned uniform brightness optical engine structure, as well as conventional components such as a shell, power supply, and control circuit. By integrating this optical engine structure, a projection effect with uniform brightness and efficient heat dissipation is achieved.

[0023] Please see Figure 2 , Figure 2 This illustration shows a perspective view of an embodiment of a uniformly bright optical engine structure and projector according to the present invention. The uniformly bright optical engine structure and projector include: an audio component, which is a split design comprising an audio cavity 4 and an audio connection component. The audio cavity 4 is separate from the optical engine body 2 and can be flexibly arranged to optimize acoustic effects. The audio connection component enables audio signal transmission. An audio socket 8 is provided below the audio cavity 4, and a push-button slot is provided on the audio socket 8. The audio cavity 4 is inserted into the push-button slot. A metal contact (for the live wire) is fixedly connected to the bottom of the audio cavity 4, and a spiral metal ring (for the neutral wire) is fixedly connected to the outer side of the bottom of the audio cavity 4. The inner side of the bottom of the push-button slot... A metal screw sleeve (for connecting the neutral wire) is fixedly connected to the bottom center of the slot, and a metal tongue (for connecting the live wire) is fixedly connected to the bottom center of the slot. The speaker cavity 4 can be screwed clockwise into the slot, allowing the metal contact to contact the metal tongue. The spiral metal ring fits into the metal screw sleeve. An upper rubber pad 9 is fixedly connected to the upper end of the speaker base 8, and a lower rubber pad 10 is fixedly connected to the lower end of the speaker base 8. A carrying handle 7 is fixedly connected to one side of the side plate 6. A power interface 5 is provided on the right side of the speaker base 8. The split design can prevent the speaker vibration from affecting the optical engine, increase the cavity space to improve the sound quality, and the lower rubber pad 10 plays a buffering role to reduce the noise caused by speaker vibration. Side plates 6 are fixedly connected to both sides of the speaker base 8.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A uniform brightness optomechanical structure and projector, characterized in that, The uniform brightness optical engine structure and projector include: projector body (1), optical engine body (2), audio components and fan. The projector body (1) has an optical engine body (2) at the front end. The optical engine body (2) adopts an open design and has an optical path system containing a light source, lens group and display chip inside. The symmetrical exhaust structure on both sides of the optical engine body (2) contains a heat dissipation component (3).

2. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, The main body of the optical engine (2) has fans fixedly installed in the heat-generating areas near the light source and the display chip.

3. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, The audio component is a split design, including an audio cavity (4) and an audio connection component. The audio cavity (4) is separated from the optical engine body (2), and the audio connection component realizes audio signal transmission.

4. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, The exhaust structure is made by metal processing and is fixed to the optical engine body (2) by bolt connection.

5. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, A speaker base (8) is provided below the speaker cavity (4), and a button slot is provided on the speaker base (8), in which the speaker cavity (4) is inserted.

6. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, A metal contact is fixedly connected to the bottom of the speaker cavity (4), and a spiral metal ring is fixedly connected to the outer side of the bottom of the speaker cavity (4).

7. The optical-mechanical structure and projector with uniform brightness according to claim 5, characterized in that, A metal screw sleeve is fixedly connected to the inner side of the bottom of the slot, and a metal tongue is fixedly connected to the center of the bottom of the slot.

8. The optical-mechanical structure and projector with uniform brightness according to claim 5, characterized in that, The upper end of the speaker base (8) is fixedly connected to an upper rubber pad (9), and the lower end of the speaker base (8) is fixedly connected to a lower rubber pad (10).

9. The optical-mechanical structure and projector with uniform brightness according to claim 5, characterized in that, The speaker base (8) is fixedly connected to side plates (6) on both the left and right sides, and a handle (7) is fixedly connected to one side of each side plate (6). A power interface (5) is provided on the right side of the speaker base (8).

10. The optical-mechanical structure and projector with uniform brightness according to claim 1, characterized in that, The projector body (1) includes the above-mentioned uniform brightness optical engine structure, as well as the outer shell, power supply, and control circuit components.

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