CN220983710U - Projection equipment - Google Patents

Abstract

The application discloses projection equipment, relates to the technical field of projection display, and aims to solve the problem of low reliability of fixing an existing light pipe. The projection device includes a light source and a light homogenizing assembly. The light source is used for emitting projection light. The light homogenizing component is positioned on the light path of the projection light and is used for homogenizing the projection light of the light source. The dodging component comprises a light guide shell, a solid light guide and a light guide fixing piece. The light pipe shell is hollow and has two open ends. The solid light pipe has a peripheral wall disposed inside the light pipe housing. The light pipe fixing piece is abutted against the peripheral wall of the solid light pipe, and the light pipe fixing piece is connected with the light pipe shell. The projection device is used for projecting an image.

Description

Projection equipment

Technical Field

The present application relates to the field of projection display technologies, and in particular, to a projection device.

Background

Projection televisions typically include a projection device and a projection screen. After the light rays projected by the projection device reach the projection screen, the light rays are reflected by the projection screen to form a projection picture.

The inside of projector is provided with the even optical subassembly generally, and even optical subassembly can be used for carrying out even light to the light of the light source emission of projector, guarantees the projection effect. The light homogenizing component generally comprises a light guide tube and a light guide tube shell, wherein the light guide tube is arranged in the light guide tube shell.

However, the existing light guide is generally fixed in the light guide shell by adopting an adhesive mode, so that the risk of adhesive failure is easy to occur, and the reliability of fixing the light guide is low.

Disclosure of utility model

The application provides projection equipment which is used for solving the problem of low reliability of the existing light pipe fixation.

In order to achieve the above purpose, the application adopts the following technical scheme:

In one aspect, an embodiment of the present application provides a projection apparatus including a light source and a light homogenizing component. The light source is used for emitting projection light, and the light homogenizing component is positioned on a light path of the projection light and used for homogenizing the projection light of the light source. The dodging component comprises a light guide shell, a solid light guide and a light guide fixing piece. The light pipe shell is hollow and has openings at two ends. The solid light pipe is provided with a peripheral wall and is arranged inside the light pipe shell, and the inner wall of the light pipe shell is arranged around the peripheral wall. The light guide fixing piece is connected with the light guide shell and abuts against the peripheral wall of the solid light guide to limit shaking of the solid light guide inside the light guide shell.

In some embodiments, the light pipe housing is provided with a relief hole, and the relief hole is communicated with the interior of the light pipe housing. The light pipe fixing piece comprises a main body part and an abutting part, wherein the main body part is arranged outside the light pipe shell and connected with the light pipe shell, the abutting part is connected with the main body part, and the abutting part penetrates through the avoidance hole and abuts against the solid light pipe.

In some embodiments, the solid light pipe is in the shape of a cuboid, and the peripheral wall includes a plurality of side walls joined end-to-end. The number of the avoidance holes is multiple, the plurality of the avoidance holes are opposite to the adjacent two side walls, the number of the propping parts is multiple, the plurality of the propping parts penetrate through the plurality of the avoidance holes and are propped against the adjacent two side walls, and the other two side walls are propped against the inner wall of the light pipe shell.

In some embodiments, the number of the abutting portions is plural, and the plural abutting portions are connected with the main body portion. Or the number of the light pipe fixing parts is multiple, and one main body part is connected with one abutting part.

In some embodiments, the abutment portion is resilient, with one end of the abutment portion being connected to the main body portion and the other end passing through the relief hole to abut the solid light pipe. Wherein the abutting portion is obliquely arranged. An included angle is formed between the extending direction of the abutting part and the axial direction of the avoidance hole.

In some embodiments, an end of the abutment portion remote from the main body portion is bent toward a side remote from the solid light pipe to form an arcuate surface. The cambered surface is abutted against the solid light pipe.

In some embodiments, the body portion defines a first connection aperture and the outer wall of the light pipe housing defines a second connection aperture. The projection device further comprises a fastener, wherein the fastener penetrates through the first connecting hole and stretches into the second connecting hole to be connected with the second connecting hole. The light pipe fixing piece is connected with the light pipe shell through a fastener.

In some embodiments, the projection device further comprises an illumination housing. The inside of illumination casing forms the installation space, and even optical subassembly sets up in the installation space, is connected with the illumination casing. Wherein, the illumination casing is formed with the spacing groove, and the outer wall of light pipe shell is formed with spacing portion, and spacing portion is located the spacing inslot, with spacing groove joint.

In some embodiments, the projection device further comprises a light assembly fixture. The even light subassembly mounting is located the installation space, is connected with the illumination casing. At least one part of the light homogenizing component is positioned at one side of the light guide shell away from the limiting groove and is abutted against the light guide shell.

In another aspect, an embodiment of the present application provides a projection apparatus including a light source and a light homogenizing component. The light source is used for emitting projection light, and the light homogenizing component is positioned on a light path of the projection light and used for homogenizing the projection light of the light source. The dodging component comprises a light guide shell, a solid light guide and a light guide fixing piece. The light pipe shell is hollow and has openings at two ends. The light guide fixing piece is connected with the light guide shell and used for limiting the shaking of the solid light guide inside the light guide shell.

According to the projection equipment provided by the embodiment of the application, projection light can enter the solid light guide tube from the opening at one end of the light guide tube shell, and then the solid light guide tube is emitted from the other end of the light guide tube shell, so that the transmission of the projection light in the light homogenizing component is realized, and further the light homogenizing of the projection light is realized. Simultaneously, solid light pipe can be limited through the light pipe mounting in the light pipe shell inside, avoids rocking in inside, does not have the risk of glue opening inefficacy.

Drawings

Fig. 1 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

fig. 2 is a second schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of FIG. 2A;

Fig. 4 is a third schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a light pipe fixing member 3 according to an embodiment of the present application;

FIG. 7 is a second schematic view of another light guide fixing member 3 according to the embodiment of the present application;

Fig. 8 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of a fixing member 5 for a dodging component according to an embodiment of the present application;

fig. 11 is a schematic diagram of a light homogenizing component 100 according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a light homogenizing device 100 according to an embodiment of the present application.

Reference numerals:

100-homogenizing components; 1-a solid light pipe; 2-a light pipe housing; 21-avoiding holes; 22-limiting parts; 3-a light pipe fixing member; 31-a main body; 32-an abutment; 4-a fastener; 41-a first connection hole; 42-a second connection hole; 5-a light homogenizing component fixing piece; 51-a light homogenizing component fixing part main body; 52-a dodging component abutting part; 53-dodging the hole of the component; 54-dodging component connection holes.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "center", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, "/" means "or" unless otherwise indicated, for example, A/B may mean A or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more.

In the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.

In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present application is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

With the continued advancement of projection display technology, more and more users select projection televisions as display devices. Projection televisions typically include a projection device and a projection screen, and projection devices typically include a light source, a light engine, and a lens.

In projection devices, a light source is used to emit a projection light, a light engine can modulate the light beam according to an image display signal to obtain a projection light beam, and a lens is used to project the projection light beam onto a projection screen or a wall for imaging.

Meanwhile, in order to homogenize the projection light emitted by the light source, the projection device generally further comprises a homogenizing component, and the homogenizing component is arranged on the light path of the light source. The light emitted by the light source is processed by the light homogenizing component and then enters the light valve of the light machine.

Currently, light homogenizing assemblies generally include light pipes or fly's eye lenses. Among them, fly-eye lenses have not yet new optical structures, and the mainstream option is still a light pipe. The position of the light pipe is adjusted, so that more light passing through the light pipe can enter the effective area of the light valve, and the projection effect of the projection device is improved.

The light guide may be divided into a hollow light guide and a solid light guide. The hollow light guide is generally formed into a hollow rectangle by bonding four reflectors.

With the market pursuing higher and higher brightness of laser televisions and laser projection, in the field of laser projection commercial display, the brightness of the whole machine can reach 20000lm and higher. In high lumen products, hollow light pipes present a certain risk of glue opening, which leads to product failure and affects the reliability of the product.

Therefore, solid light pipes are generally chosen as light homogenizing elements in high lumen products. In the related art, the light guide assembly generally further includes a light guide housing, and the light guide is disposed in the light guide housing.

It will be appreciated that the aperture of the light pipe housing is larger than the size of the light pipe so that the light pipe can be smoothly mounted inside the light pipe housing. However, the light guide is generally fixed inside the light guide housing by means of adhesion, which also easily causes a certain failure risk, so that the light guide is swayed inside the light guide housing, and the light guide cannot be fixed inside the light guide housing.

Based on this, the embodiment of the application provides a projection device, which may include a light source, a light engine, and a lens, where the light source is used to emit projection light, and may include a laser, and the laser may be used to emit laser.

The laser may be one of a single-color laser, a dual-color laser, and a tri-color laser. By way of example, the laser may be a trichromatic laser that emits blue, red and green laser light.

The wavelength of the laser emitted by the three-color laser can be selected according to actual requirements. For example, the wavelength of the blue laser light emitted from the laser may be set to 430nm to 460nm, the wavelength of the green laser light emitted may be set to 500nm to 540nm, and the wavelength of the red laser light emitted may be set to 610nm to 650nm. Of course, the projection device may also be a projection device that emits ordinary light.

The optical machine can be positioned on the light path of the projection light emitted by the light source, and can process the projection light emitted by the light source. Wherein the light engine may comprise a light valve.

The light valve can be used for receiving projection light rays emitted by the light source and modulating the light rays according to the image display signals to obtain projection light beams. The specific type of light valve may be selected according to the actual situation, and the light valve may be a digital micromirror element chip, for example.

The lens can be positioned on the light path of the projection light after passing through the optical machine, the projection light can be projected onto the projection screen after passing through the lens, and a viewer can watch the projection picture on the projection screen.

In the embodiment of the application, the type of the lens can be selected according to actual conditions. For example, the lens may be a zoom lens, a fixed focus adjustable lens, or a fixed focus lens. Or the lens may be an ultra-short focal projection lens or a long focal projection lens.

In addition, in order to homogenize the light emitted by the light source, the projection device provided by the embodiment of the application can further comprise a light homogenizing component. The light homogenizing component is positioned on the light path of the projection light and is used for homogenizing the projection light.

It can be understood that the light homogenizing component is located at the light incident side of the light valve, and the projection light emitted by the light source enters the light valve after passing through the light homogenizing component. By adjusting the position of the light homogenizing component, more light can enter the effective area of the light valve.

Next, a description will be further given of a light homogenizing component provided in an embodiment of the present application, as shown in fig. 1, fig. 1 is a schematic structural diagram of a light homogenizing component 100 provided in an embodiment of the present application, where the light homogenizing component 100 may include a light pipe housing 2, a solid light pipe 1, and a light pipe fixing member 3.

The light guide housing 2 is hollow and has openings at both ends, and the solid light guide 1 is disposed inside the light guide housing 2. Therefore, the projection light can enter the solid light guide 1 from the opening at one end of the light guide housing 2, and then the solid light guide 1 is emitted from the other end of the light guide housing 2, so that the projection light is transmitted in the light homogenizing component 100, and the light homogenizing of the projection light is realized.

The light guide fixing member 3 is connected to the light guide housing 2 and can be used to restrict the shake of the solid light guide 1 inside the light guide housing 2. Therefore, the solid light pipe 1 can be limited in the light pipe shell 2 through the light pipe fixing piece 3, so that shaking in the interior is avoided, and the risk of glue opening failure is avoided.

It will be appreciated that the size of the opening in the light pipe housing 2 may be larger than the size of the solid light pipe 1 so that the solid light pipe 1 can fit smoothly into the interior of the light pipe housing 2. Meanwhile, in the assembly process, the problem of edge breakage at the corners of the solid light guide pipe 1 can be avoided, and image color spots are caused in projection.

Fig. 2 is a schematic diagram of a light homogenizing component 100 according to an embodiment of the application. The solid light guide 1 has a peripheral wall, and the inner wall of the light guide housing 2 is arranged around the peripheral wall of the solid light guide 1. In order to realize the limit of the light guide fixing piece 3 to the solid light guide 1, the light guide fixing piece 3 can abut against the peripheral wall to limit the shake of the solid light guide 1 inside the light guide housing 2.

In this way, the solid light guide 1 can be limited from shaking inside the light guide housing 2 by abutting the light guide fixing piece 3 against the peripheral wall of the solid light guide 1, so that the solid light guide 1 can be relatively fixed inside the light guide housing 2. Of course, the light guide fixing member 3 may fix the solid light guide 1 inside the light guide housing 2 by other means, for example, by providing a clamping structure on the light guide fixing member 3 and the solid light guide 1.

In some embodiments, as shown in fig. 3, fig. 3 is an enlarged schematic view of fig. 2 a, where the light pipe housing 2 is provided with a relief hole 21, and the relief hole 21 communicates with the interior of the light pipe housing 2.

Meanwhile, the light guide fixing member 3 includes a main body portion 31 and an abutting portion 32. The main body 31 is provided outside the light guide housing 2, is connected to the light guide housing 2, and the abutting portion 32 is connected to the main body 31, and the abutting portion 32 abuts against the solid light guide 1 through the escape hole 21.

Thus, by providing the escape hole 21, the main body 31 of the light guide fixing member 3 can be arranged outside the light guide housing 2 to be connected with the light guide housing 2, and the light guide fixing member 3 can be installed more conveniently and rapidly. Meanwhile, the abutting part 32 of the light pipe fixing piece 3 can penetrate through the avoidance hole 21 to abut against the solid light pipe 1 inside, so that the solid light pipe 1 is fixed inside the light pipe shell 2.

In addition, by providing the avoidance hole 21, the weight of the light guide housing 2 can be reduced, the production cost can be saved, and the portability of the projection apparatus can be improved.

In other embodiments, the light guide fixing member 3 may also be disposed inside the light guide housing 2, such that one end of the light guide fixing member 3 is connected to the inner wall of the light guide housing 2, and the other end abuts against the peripheral wall of the solid light guide 1, so that the light guide housing 2 is connected to the solid light guide 1.

In some embodiments, as shown in fig. 4, fig. 4 is a schematic diagram of a third embodiment of a light homogenizing component 100 according to the present application, where the solid light pipe 1 may be rectangular, and the peripheral wall includes a plurality of side walls connected end to end. When the solid light pipe 1 is rectangular, the structure is simple and the processing is easy.

It will be appreciated that the cavity formed inside the light pipe housing 2 is also cuboid in shape to match the shape of the solid light pipe 1. Illustratively, as shown in fig. 2, the overall shape of the light pipe housing 2 is substantially rectangular parallelepiped.

In order to fix the solid light guide 1, as shown in fig. 2, the number of the avoidance holes 21 is plural, and the plurality of the avoidance holes 21 are disposed opposite to the adjacent two side walls. Accordingly, the number of the abutting portions 32 is plural, the plurality of abutting portions 32 penetrate through the plurality of escape holes 21 to abut against the adjacent two side walls, and the other two side walls abut against the inner wall of the light guide housing 2.

Thus, the plurality of abutting portions 32 abut against the adjacent two side walls, and the other two side walls are fixed by the inner wall of the light guide housing 2. In this way, the four moving directions of the solid light guide 1 can be limited only by abutting the two side walls, and the mounting structure is simplified.

In some embodiments, a single sidewall of the solid light pipe 1 may abut multiple abutments 32. The plurality of abutting parts 32 can limit different parts of the side wall of the solid light pipe 1, so that the fault tolerance of the abutting parts 32 is increased, and the fixing reliability of the solid light pipe 1 is ensured.

Fig. 5 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the application. The light guide housing 2 may be provided with a relief hole 21 at a position abutting against both side walls of the solid light guide 1. At this time, on the two side walls where the solid light guide 1 and the light guide housing 2 directly abut against each other, the solid light guide 1 can be fixed in an auxiliary manner by dispensing in the escape hole 21 at the above-mentioned position. At the same time, the solid light guide 1 can be limited to slide along the axial direction of the light guide housing 2 by glue dispensing and fixing.

Thus, by two different fixing modes of abutting and dispensing at the avoiding hole 21, the fixing reliability and stability of the solid light guide 1 can be further improved.

In some embodiments, as shown in fig. 6, fig. 6 is a schematic structural diagram of a light guide fixing member 3 according to an embodiment of the present application, the number of the abutting portions 32 is plural, and the plurality of abutting portions 32 are connected to the main body 31.

Thus, when the optical catheter holder 3 is mounted, it is no longer necessary to position the plurality of abutting portions 32, and only the single body portion 31 is required to be positioned. The installation process of the light pipe fixing piece 3 is simpler and more convenient, and the installation efficiency is higher.

Illustratively, as shown in fig. 6, the number of the abutting portions 32 may be four, and the main body portion 31 of the light guide fixing member is connected with the four abutting portions 32 at the same time.

Further, for example, as shown in fig. 6, when the main body portion 31 is connected to the plurality of abutting portions 32, the main body portion 31 may be an L plate in order that the plurality of abutting portions 32 may abut against the adjacent two side walls of the solid light guide 1.

In other embodiments, as shown in fig. 7, fig. 7 is a schematic structural diagram of another light guide fixing member 3 according to an embodiment of the present application, the number of light guide fixing members 3 may be plural, and one main body 31 is connected to one abutting portion 32. Therefore, by arranging the plurality of light pipe fixing pieces 3, the light pipe fixing pieces 3 are mutually independent, and the light pipe fixing pieces are convenient to maintain and replace when damaged.

In some embodiments, as shown in fig. 8, fig. 8 is a schematic diagram of a light homogenizing component 100 according to an embodiment of the present application, the main body 31 is provided with a first connection hole 41, and the outer wall of the light pipe housing 2 is provided with a second connection hole 42. The projection device further comprises a fastener 4, wherein the fastener 4 passes through the first connecting hole 41 and extends into the second connecting hole 42 to be connected with the second connecting hole 42. The light pipe fixing member 3 is connected to the light pipe housing 2 by a fastener 4.

Therefore, by arranging the fastener 4, the light pipe fixing piece 3 and the light pipe shell 2 can be connected through the fastener 4, the connecting structure is simple, and the connection is more convenient.

For example, as shown in fig. 8, the fastener 4 may be a screw. When the light guide fixing piece 3 is assembled with the light guide housing 2, screws sequentially pass through the first connecting hole 41 and the second connecting hole 42 and are matched with internal threads of the second connecting hole 42, and the light guide fixing piece 3 is fixed on the light guide housing 2 in a threaded fastening mode.

Of course, in other embodiments, the light pipe firmware 3 may be coupled to the light pipe housing 2 in other ways. For example, the main body 31 of the light guide fixing member 3 may be engaged with the light guide housing 2 by an engagement manner.

Fig. 9 is a schematic diagram of a light homogenizing component 100 according to an embodiment of the application. In some embodiments, the abutment 32 has elasticity, and one end of the abutment 32 is connected to the main body 31, and the other end abuts against the solid light guide 1 through the relief hole 21. Wherein the abutment 32 is arranged obliquely. The extending direction of the abutting portion 32 forms an angle with the axial direction of the escape hole 21.

Since the abutting portion 32 is provided obliquely and has elasticity, the inclination angle of the abutting portion 32 with respect to the axis of the escape hole 21 can be changed. Thus, when the light guide fixing member 3 is attached, the abutting portion 32 and the axis of the escape hole 21 can be formed at different inclination angles, and the length of the abutting portion 32 extending into the light guide housing 2 can be made different. At this time, when the solid light guide 1 is mounted inside the light guide housing 2, the abutting portion 32 can generate different degrees of elastic deformation under the abutting of the light guide due to the different inclination angles of the abutting portion 32, so as to apply different magnitudes of pressure to the solid light guide 1.

An angle formed by the extending direction of the abutting portion 32 and the axial direction of the avoiding hole 21 is defined as a first angle. It will be appreciated that when the abutment 32 moves away from the main body 31, the first angle increases, the deformation degree of the abutment 32 decreases, the elastic force between the abutment 32 and the peripheral wall of the solid light guide 1 decreases, and the mobility of the solid light guide 1 in the light guide housing 2 increases, so that the solid light guide 1 can move. At this point, the operator can adjust the position of the solid light pipe 1 accordingly.

When the abutting portion 32 moves toward the direction approaching the main body portion 31, the first angle decreases, the degree of deformation of the abutting portion 32 increases, the elastic force between the abutting portion 32 and the peripheral wall increases, the movable ability of the solid light guide 1 inside the light guide housing 2 decreases, and the movement of the solid light guide 1 is restricted. At this time, the operator can lock the position of the solid light guide 1.

It will be appreciated that the specific shape of the light pipe fixing member 3 may be set according to actual requirements. Illustratively, as shown in fig. 7, the light pipe fixing member 3 may be in the shape of a dome. Of course, the light guide fixing member 3 may be of other reasonable shape, which is not specifically limited herein.

Referring to fig. 3 and 9, in some embodiments, an end of the abutting portion 32 away from the main portion 31 is bent towards a side away from the solid light pipe 1 to form an arc surface. The cambered surface is abutted against the solid light pipe 1.

Because the end of the abutting part 32 far away from the main body part 31 is bent towards the side far away from the solid light pipe 1 to form an arc surface, the abutting part 32 and the solid light pipe 1 are convenient to slide in abutting position, and the peripheral wall of the solid light pipe 1 is not easy to damage, so that scratches are left.

It will be appreciated that the shape of the bending of the abutment 32 may be set according to the actual circumstances. For example, the abutment may be bent to form a V-shaped arcuate surface.

In some embodiments, the projection device further comprises an illumination housing (not shown in the figures). The interior of the illumination housing forms an installation space, and the dodging component 100 is disposed in the installation space and connected with the illumination housing. Wherein, the lighting shell is formed with a limit groove.

Referring to fig. 9, a limiting portion 22 is formed on an outer wall of the light guide housing 2, and the limiting portion 22 is located in the limiting groove and is clamped with the limiting groove. Therefore, the light pipe shell 2 can be clamped with the limit groove of the lighting shell through the limit part 22, so that the movement of the light pipe shell 2 in the installation space is limited, and the quick installation and positioning of the light pipe shell 2 are realized.

Of course, in other embodiments, the outer wall of the light pipe housing 2 is provided with a limiting groove, and the lighting housing is provided with a limiting portion. At this time, the limit part of the lighting shell is clamped with the limit groove on the light pipe shell 2, so that the light pipe shell 2 can be quickly installed and positioned.

In some embodiments, as shown in fig. 1, the projection device further comprises a light homogenizing assembly fixture 5. The dodging component fixing piece 5 is located in the installation space and connected with the illumination shell.

Wherein, at least a part of the dodging component fixing piece 5 is positioned at one side of the light pipe shell 2 away from the limit groove and is abutted against the light pipe shell 2. Illustratively, as shown in fig. 9, a limiting portion 22 is disposed below the light pipe housing 2 and can be connected with a limiting groove on the lighting housing. Meanwhile, a part of the dodging component fixing piece 5 is positioned at the upper part of the light pipe shell 2, so that the light pipe shell 2 can be limited to be separated from a limiting groove on the lighting shell.

Therefore, the part of the dodging component fixing piece 5, which is positioned on one side of the light guide tube shell 2, away from the limiting groove can prevent the limiting part 22 of the light guide tube shell 2 from being separated from the limiting groove, and the limiting effect on the light guide tube shell 2 is achieved.

In some embodiments, as shown in fig. 1, the dodging component fixtures 5 may be located on two adjacent sides of the light pipe housing 2 along the circumference of the light pipe housing 2, and respectively abut against the light pipe housing 2. The other side of the light pipe housing 2 may abut the illumination housing. Thus, the light guide housing can be restrained from moving in the circumferential direction by the cooperation between the light-homogenizing assembly mount 5 and the illumination housing, the light-homogenizing assembly mount 5 and the illumination housing.

In some embodiments, as shown in fig. 10, fig. 10 is a schematic structural diagram of a light homogenizing component fixing member 5 according to an embodiment of the present application, where the light homogenizing component fixing member 5 includes a light homogenizing component fixing member main body 51 and a light homogenizing component abutting portion 52.

As shown in fig. 10, the dodging component abutting portion 52 is located at one side of the dodging component fixing member main body 51 and is used for abutting against the light guide housing 2. Wherein, even light subassembly conflict portion 52 slope sets up, and has elasticity.

Thus, by adjusting the degree of inclination of the dodging component interference portion 52, the magnitude of the pressure applied to the light guide housing 2 by the dodging component interference portion 52 can be adjusted.

Meanwhile, as shown in fig. 10, the dodging component avoiding hole 53 may be formed in the dodging component fixing member 5, and a part of the dodging component avoiding hole 53 may be disposed opposite to the main body portion 31 (fig. 1) of the light guide fixing member 3.

Thus, the dodging component dodging hole 53 can dodge the main body portion 31 of the light guide fixing member 3, and the main body portion 31 can pass through the dodging component dodging hole 53, so that the dodging component colliding portion 52 is conveniently close to and abutted against the light guide housing 2.

In addition, as shown in fig. 10, one end of the dodging component abutting portion 52 may be connected to the periphery of the dodging component dodging hole 53 and disposed opposite to the dodging component dodging hole 53. At this time, the assembler can observe and adjust the inclination angle of the dodging component abutting portion 52 from the dodging component dodging hole 53 conveniently.

It is understood that the specific form of the dodging component fixing member 5 can be designed according to practical situations. As shown in fig. 11, fig. 11 is a schematic diagram of a light homogenizing component 100 according to an embodiment of the present application, since the light homogenizing component abutting portion 52 needs to abut against the light guide housing 2 on two adjacent sides of the light homogenizing component fixing member 5, the light homogenizing component fixing member 5 may be a zigzag board.

Referring to fig. 1 and 12, fig. 12 is a schematic structural diagram of a light homogenizing component 100 according to an embodiment of the present application, where two end plates of the Z-shaped plate may be provided with light homogenizing component connection holes 54. At this time, the light homogenizing module fixing member 5 may be fixed in the lighting housing by the fixing member 4, and the fixing member 4 passes through the light homogenizing module connection hole 54 and is connected with the lighting housing.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (10)

1. A projection device, comprising:

a light source for emitting projection light;

the light homogenizing component is positioned on the light path of the projection light and is used for homogenizing the projection light;

Wherein, even light subassembly includes:

the light pipe shell is of a hollow structure, and two ends of the light pipe shell are provided with openings;

a solid light guide tube arranged in the light guide tube shell and provided with a peripheral wall; the inner wall of the light pipe shell is arranged around the peripheral wall;

And the light guide fixing piece is connected with the light guide shell and abuts against the peripheral wall so as to limit the shaking of the solid light guide inside the light guide shell.

2. The projection device of claim 1, wherein the light pipe housing is provided with a relief hole; the avoidance hole is communicated with the inside of the light pipe shell;

The light pipe fixing piece comprises a main body part and an abutting part; the main body part is arranged outside the light pipe shell and is connected with the light pipe shell; the abutting part is connected with the main body part; the abutting part passes through the avoidance hole and abuts against the solid light pipe.

3. The projection device of claim 2, wherein the solid light pipe is rectangular in shape; the peripheral wall comprises a plurality of side walls connected end to end; the number of the avoidance holes is multiple; the avoidance holes are arranged opposite to the two adjacent side walls;

The number of the abutting parts is a plurality of; the abutting parts penetrate through the avoidance holes and abut against the two adjacent side walls, and the other two side walls abut against the inner wall of the light pipe shell.

4. The projection apparatus according to claim 2, wherein the number of the abutting portions is plural;

a plurality of the abutting portions are connected with the main body portion; or alternatively

The number of the light pipe fixing parts is multiple, and one main body part is connected with one abutting part.

5. The projection apparatus according to claim 2, wherein the abutting portion has elasticity; one end of the abutting part is connected with the main body part, and the other end of the abutting part penetrates through the avoidance hole to abut against the solid light pipe;

Wherein the abutting part is obliquely arranged; an included angle is formed between the extending direction of the abutting part and the axial direction of the avoidance hole.

6. The projection apparatus according to claim 5 wherein an end of the abutting portion remote from the main body portion is bent toward a side remote from the solid light guide to form an arc surface; the cambered surface is abutted against the solid light pipe.

7. The projection apparatus according to claim 2, wherein the main body portion is provided with a first connection hole; the outer wall of the light pipe shell is provided with a second connecting hole; the projection apparatus further includes:

the fastener passes through the first connecting hole and stretches into the second connecting hole to be connected with the second connecting hole; the light pipe fixing piece is connected with the light pipe shell through the fastening piece.

8. The projection device of claim 1, further comprising:

a lighting housing, an interior of which forms an installation space; the light homogenizing component is arranged in the installation space and is connected with the illumination shell;

Wherein, the lighting shell is provided with a limit groove; a limit part is formed on the outer wall of the light pipe shell; the limiting part is positioned in the limiting groove and is clamped with the limiting groove.

9. The projection device of claim 8, further comprising:

The light homogenizing component fixing piece is positioned in the installation space and connected with the illumination shell;

at least one part of the light homogenizing component is positioned at one side of the light pipe shell far away from the limiting groove and is abutted against the light pipe shell.

10. A projection device, comprising:

a light source for emitting projection light;

the light homogenizing component is positioned on the light path of the projection light and is used for homogenizing the projection light;

Wherein, even light subassembly includes:

the light pipe shell is of a hollow structure, and two ends of the light pipe shell are provided with openings;

A solid light pipe arranged inside the light pipe shell;

And the light guide fixing piece is connected with the light guide shell and is used for limiting the solid light guide from shaking inside the light guide shell.