Projector with inclined light path

Abstract

The utility model discloses a projector with an inclined light path, which comprises a shell (1), an installation cavity is arranged in the shell (1), and an optical assembly which is arranged in an inclined mode is installed in the installation cavity. The lens (2) is obliquely installed at the light path output end of the optical assembly, and the lens (2) is installed on one side of the shell (1), exposed out of the shell (1) and used for projecting a projection picture outwards; the reflective mirror (3) is obliquely installed between the optical assembly and the lens (2), and the optical assembly reflects a projection picture to the end of the lens (2) through the reflective mirror (3) to be output. According to the utility model, through the optical assembly, the lens and the reflective mirror which are obliquely arranged, the problem that a projection picture is split under the condition that the space of a conventional parallel light path projector is limited is solved.

Description

Technical Field

[0001] The utility model relates to a projector, in particular to a projector with an inclined light path. Background Art

[0002] With the development of multimedia technology, projectors have become an important tool for business, education and home entertainment. Traditional projectors generally adopt a parallel light path design, that is, under normal use conditions, the light beam is emitted in a direction parallel to the bottom surface of the projector. This design performs well in occasions with sufficient space and long projection distance, but it has obvious shortcomings in limited space or specific scenarios.

[0003] Especially when the projector is placed on a flat surface such as a desktop and close to an LCD screen, due to the parallel design of the optical path and the divergent characteristics of the light beam, the projected image often falls partially on the desktop and partially on the LCD screen. This results in an incomplete image, affecting the viewing experience and the effect of information transmission. This situation is particularly common in small meeting rooms, temporary presentation environments, or home use.

[0004] Existing solutions include using a projector lift or placing the projector at a higher position, but these methods either increase the complexity and cost of the equipment or limit the flexibility of projector placement. Therefore, there is an urgent need for a projection technology that can adapt to different environments, especially in space-constrained conditions, while maintaining the integrity of the image. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a projector with an inclined optical path, aiming to optimize the optical path angle so that even when the projector is close to the LCD screen, the entire picture can be completely projected on the LCD screen, thereby overcoming the picture splitting problem encountered by traditional parallel optical path projectors when used in limited space.

[0006] The utility model is realized by the following technical scheme: a projector with an inclined light path, comprising:

[0007] A housing, wherein the housing has a mounting cavity, wherein an obliquely arranged optical component is mounted in the mounting cavity, wherein the optical component includes a light source;

[0008] A lens is obliquely mounted at the light path output end of the optical assembly, the lens is mounted on one side of the housing and exposed from the housing, and is used to project a projection image outward;

[0009] A reflector, which is installed obliquely between the optical component and the lens, and the optical component reflects the projection image through the reflector to the lens end for output;

[0010] The tilted light source cooperates with the lens and the reflector to form an output light path that is tilted upward relative to the horizontal plane, so as to increase the height of the projected image.

[0011] As a preferred technical solution, the optical component includes an LCD screen, a front mirror, a polarizing mirror and a light cone. The polarizing mirror is installed between the light source and the LCD screen. The light source is arranged on one side of the light cone. The LCD screen is installed at the output end of the light cone. The output end of the light source is arranged opposite to the input end of the light cone. The front mirror is installed at the output end of the LCD screen.

[0012] As a preferred technical solution, a heat-insulating glass is installed between the LCD screen and the light cone, and the light cone, LCD screen and front mirror are all arranged at an incline relative to a horizontal plane.

[0013] As a preferred technical solution, a first radiator is arranged on the top of the light source, and a second radiator is arranged on the top of the LCD screen.

[0014] As a preferred technical solution, a power supply is also provided at the bottom of the light cone, and the light source and the LCD screen are powered by the power supply.

[0015] As a preferred technical solution, the lens forms an inclined angle a with the horizontal plane, and the reflector is perpendicular to the horizontal plane.

[0016] The beneficial effect of the utility model is that the utility model effectively solves the problem of projection picture splitting of the traditional parallel light path projector under the condition of limited space through the inclined optical components, lenses and reflectors.

[0017] Due to the design of the tilted output light path, the projector can be more flexibly adapted to different environmental settings, such as small meeting rooms, classrooms or home entertainment venues, and high-quality projection effects can be achieved without the need for additional brackets or complicated adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The cross section of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The cross section of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0023] Description of reference numerals:

[0024] 1. Shell; 2. Lens; 3. Reflector; 4. Heat-insulating glass; 5. LCD screen; 6. Front mirror; 7. Light cone; 8. First radiator; 9. Second radiator. DETAILED DESCRIPTION

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0026] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0027] like Figure 1-Figure 4 As shown, a projector with an inclined optical path of the utility model comprises a housing 1, wherein the housing 1 has an installation cavity, and an optical component arranged obliquely is installed in the installation cavity;

[0028] It also includes a lens 2, which is obliquely mounted at the light path output end of the optical component, and the lens 2 is mounted on one side of the housing 1 and exposed from the housing 1, and is used to project the projection image outward;

[0029] and a reflector 3, wherein the reflector 3 is installed obliquely between the optical component and the lens 2, and the optical component reflects the projection image through the reflector 3 to the lens 2 end for output;

[0030] The tilted optical components, the lens 2 and the reflector 3 form an output light path tilted upward relative to the horizontal plane, so as to increase the height of the projection image.

[0031] like Figure 1-Figure 2 As shown, the optical component includes an LCD screen (5), a front mirror, a polarizing mirror and a light cone, the polarizing mirror is installed between the light source and the LCD screen, the light source is arranged on one side of the light cone, the LCD screen is installed at the output end of the light cone, the light source output end is arranged opposite to the input end of the light cone, and the front mirror is installed at the output end of the LCD screen.

[0032] In order to prevent the light source from affecting the LCD screen 5, etc., in the present embodiment, a heat-insulating glass 4 is installed between the LCD screen 5 and the light cone 7. The light cone 7, the LCD screen 5, and the front mirror 6 are all arranged tilted relative to the horizontal plane. The angle value can be between 10-60 degrees. In the present embodiment, the heat of the LCD screen 5 will not be affected by the heat-insulating glass 4, and the use is more stable.

[0033] In order to improve the heat dissipation capacity of the light source, in this embodiment, a first heat sink 8 is disposed on the top of the light source, and in order to improve the heat dissipation capacity of the LCD screen 5 , a second heat sink 9 is disposed on the top of the LCD screen 5 .

[0034] In order to provide power for the entire projector, in this embodiment, a power supply is also provided at the bottom of the light cone 7, through which the light source and the LCD screen 5 are powered. The power supply is arranged away from the optical components to reduce the influence of heat on the optical components.

[0035] Specifically, Figure 1 As shown, a tilt angle a is formed between the lens 2 and the horizontal plane, and the angle value of the tilt angle a is between 0-30 degrees. The lens 2 can be equipped with a lens 2 angle adjustment mechanism to adjust the tilt angle value, and of course it can also be set to a fixed angle value. The reflector 3 is perpendicular to the horizontal plane. When in use, since the lens 2 tilts the projection light path to display the picture, the horizontally placed host, whether placed at the near end or the far end of the desktop, the optical projection from the lens 2 will never be projected on the desktop, and the screen will not be split. When the projector is placed horizontally, it will not affect the normal projection of the projection screen. It is not restricted by the environment and does not require the use of a complex bracket structure, and normal projection action can also be achieved.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A projector with an inclined optical path, characterized in that: include: A housing (1), wherein the housing (1) has a mounting cavity, wherein an optical component arranged obliquely is mounted in the mounting cavity, wherein the optical component comprises a light source; A lens (2) is obliquely mounted at the light path output end of the optical component, the lens (2) is mounted on one side of the housing (1) and exposed from the housing (1), and is used to project a projection image outward; A reflector (3) is installed in an inclined manner between the optical component and the lens (2), and the optical component reflects the projection image through the reflector (3) to the end of the lens (2) for output; The inclined light source cooperates with the lens (2) and the reflector (3) to form an inclined output light path that is inclined upward relative to the horizontal plane, so as to raise the height of the projection picture.

2. The projector with inclined optical path according to claim 1, characterized in that: The optical component comprises an LCD screen (5), a front mirror (6), a polarizing mirror and a light cone (7), wherein the polarizing mirror is installed between the light source and the LCD screen, the light source is arranged on one side of the light cone (7), the LCD screen (5) is installed at the output end of the light cone (7), the light source output end is arranged opposite to the input end of the light cone (7), and the front mirror (6) is installed at the output end of the LCD screen (5).

3. The projector with inclined optical path according to claim 2, characterized in that: A heat-insulating glass (4) is installed between the LCD screen (5) and the light cone (7); the light cone (7), the LCD screen (5) and the front mirror (6) are all arranged in an inclined manner relative to a horizontal plane.

4. The projector with inclined optical path according to claim 2, characterized in that: A first radiator (8) is arranged on the top of the light source, and a second radiator (9) is arranged on the top of the LCD screen (5).

5. The projector with inclined optical path according to claim 2, characterized in that: A power source is also provided at the bottom of the light cone (7), and the light source and the LCD screen (5) are powered by the power source.

6. The projector with inclined optical path according to claim 1, characterized in that: The lens (2) forms an inclined angle a with the horizontal plane, and the reflector (3) is perpendicular to the horizontal plane.

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