High-definition LCD screen projection lamp

Abstract

The utility model provides a high-definition liquid crystal display (LCD) screen projection lamp, which comprises a main lens cone, an imaging lens cone, an imaging lens group, a screen frame, LCD liquid crystal glass, a condensing lens group and a light source. The imaging lens barrel and the light source are respectively located at two axial ends of the main lens barrel, one end of the imaging lens barrel is connected in the main lens barrel, the other end of the imaging lens barrel extends out of the main lens barrel, the imaging lens group is arranged in the imaging lens barrel, the screen frame is arranged in the main lens barrel, the LCD liquid crystal glass is arranged in the screen frame, and the condensing lens group is arranged between the light source and the LCD liquid crystal glass in the main lens barrel. According to the high-definition LCD screen projection lamp, by arranging the LCD glass, the projection lamp can project various different patterns, in addition, by arranging the imaging lens cone, a plurality of imaging lenses can be conveniently arranged in the imaging lens cone, and meanwhile, a plurality of condensing lenses are arranged in the main lens cone, so that the projection imaging effect is very clear.

Description

Technical Field

[0001] This utility model relates to the field of projection lamps, and in particular to a high-definition LCD screen projection lamp. Background Technology

[0002] A projection lamp is a lighting device that can project various patterns. Due to its lightness and portability, it is widely used in various outdoor commercial activities, indoor decoration, public display, and commercial promotion. For example, it can attract the attention of pedestrians by projecting patterns and text to enhance brand image. It can also project patterns and images onto the ground, walls, or ceiling to add an artistic and decorative effect to the interior space.

[0003] Existing projection lamps use patterned film to project fixed patterns. These lamps require frequent film replacements to project different patterns, resulting in overly simplistic projection content and unclear projection quality.

[0004] Therefore, it is necessary to provide a high-definition LCD screen projection lamp to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a high-definition LCD screen projection lamp to solve the problems of existing projection lamps that require frequent film replacements to project different patterns, have overly limited projection content, and lack clear projection effects.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high-definition LCD screen projection lamp, which includes: a main lens barrel, an imaging lens barrel, an imaging lens group, a screen frame, an LCD liquid crystal glass, a condenser lens group, and a light source;

[0007] The main lens barrel extends axially to form an inner cavity. The imaging lens barrel and the light source are located at opposite ends of the main lens barrel along its axial direction. One end of the imaging lens barrel is connected inside the main lens barrel, and the other end extends outside the main lens barrel. The imaging lens group is disposed inside the imaging lens barrel. The screen frame is fixedly disposed inside the main lens barrel and located between the imaging lens group and the light source. The LCD liquid crystal glass is disposed inside the screen frame. A mounting opening is provided on one side of the main lens barrel. The LCD liquid crystal glass is connected to a ribbon cable, which extends from the mounting opening to the outside of the main lens barrel. The condenser lens group is disposed inside the main lens barrel and is located between the light source and the LCD liquid crystal glass.

[0008] In this invention, the imaging lens tube has a frustum-shaped structure, and the end of the imaging lens tube with a larger outer diameter is connected inside the main lens tube.

[0009] The imaging lens group comprises a first imaging lens, a second imaging lens and a third imaging lens, the second imaging lens is located between the first imaging lens and the third imaging lens, the first imaging lens is located at one end of the imaging lens barrel away from the main lens barrel, the first imaging lens and the third imaging lens are convex lenses, and the second imaging lens is a concave-convex lens.

[0010] The first imaging lens and the third imaging lens are made of polymethyl methacrylate, the second imaging lens is made of polycarbonate, and the refractive index of the second imaging lens is higher than that of the first imaging lens and the third imaging lens.

[0011] In addition, the imaging lens group further comprises a first gasket and a second gasket, the first gasket is arranged between the first imaging lens and the second imaging lens, and the second gasket is arranged between the second imaging lens and the third imaging lens.

[0012] The condenser lens group comprises a first condenser lens and a second condenser lens, the first condenser lens is located on the side of the second condenser lens close to the light source, the first condenser lens is a concave-convex lens, the second condenser lens is a convex lens, and the first condenser lens and the second condenser lens are made of polycarbonate.

[0013] The main lens barrel comprises an upper cover and a lower cover, one side of the upper cover and the lower cover is a butt joint groove, the butt joint grooves of the upper cover and the lower cover are butted to form the inner cavity of the main lens barrel, the inner walls of the upper cover and the lower cover are provided with a first positioning groove for positioning and fixing the screen frame, a second positioning groove for positioning and fixing the condenser lens group and a third positioning groove for positioning and fixing the imaging lens barrel;

[0014] One side of the upper cover close to the lower cover is provided with a first insertion hole, and one side of the lower cover is provided with a first insertion column for being plugged with the first insertion hole.

[0015] The screen frame comprises an upper screen cover and a lower screen cover, the upper screen cover and the lower screen cover are positioned and arranged in the first positioning groove, the upper screen cover and the lower screen cover are butted to form an insertion slot, and the LCD liquid crystal glass is plugged in the insertion slot.

[0016] One side of the lower screen cover is provided with a second insertion hole, and one side of the upper screen cover is provided with a second insertion column for being plugged with the second insertion hole.

[0017] The inner side wall of the first positioning groove is provided with an anti-reverse mounting protrusion, and one side of the lower screen cover is provided with an anti-reverse mounting groove for positioning and cooperating with the anti-reverse mounting protrusion.

[0018] In addition, flared grooves are arranged on both sides of the end of the slot away from the mounting opening, and the positions of the flared grooves correspond to the end angles on both sides of the end of the LCD liquid crystal glass.

[0019] Compared with the prior art, the high-definition LCD screen projection lamp has the beneficial effects that: the high-definition LCD screen projection lamp is provided with the LCD liquid crystal glass, so that the projection lamp can project various different patterns, and the imaging lens barrel is arranged, a plurality of imaging lenses are arranged in the imaging lens barrel, and a plurality of condenser lenses are arranged in the main lens barrel, so that the projection imaging effect is very clear. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed in the embodiments, and the drawings in the following description are only corresponding drawings of some embodiments of the present application.

[0021] Figure 1 It is a structure schematic view of the preferred embodiment of the high-definition LCD screen projection lamp of the present application.

[0022] Figure 2 It is an exploded structure schematic view of the high-definition LCD screen projection lamp of the present application.

[0023] Figure 3 It is a structure schematic view of the screen frame of the high-definition LCD screen projection lamp of the present application. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The direction terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only the orientation of the drawings, and the direction terms are used to illustrate and understand the present application, but not to limit the present application.

[0026] The terms "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and are not limited as the order of priority.

[0027] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, the connection can be detachable connection, or integral structure's connection, can be mechanical connection, also can be electric connection, can be direct connection, also can pass through intermediate medium indirectly connect, can be two element internal communication or two element's interaction relation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0028] The prior art projection lamp is provided with a film with a pattern to project a fixed pattern, which often needs to replace the film to project different patterns, and the projection content is too single, and the projection effect is not clear enough.

[0029] The following is a preferred embodiment of the high-definition LCD screen projection lamp provided by the utility model, which can solve the above technical problems.

[0030] Please refer to Figure 1 And Figure 2 Among them Figure 1 The structure diagram of the preferred embodiment of the high-definition LCD screen projection lamp of the utility model. Figure 2 The exploded structure diagram of the high-definition LCD screen projection lamp of the utility model.

[0031] In the drawing, similar units are indicated with the same reference numerals.

[0032] The embodiment provides a high-definition LCD screen projection lamp, which comprises a main lens barrel 11, an imaging lens barrel 12, an imaging lens group 14, a screen frame 15, an LCD liquid crystal glass 13, a condenser lens group 16 and a light source 17.

[0033] The main lens barrel 11 is formed with an inner cavity along the axial direction, and the imaging lens barrel 12 and the light source 17 are located at two ends of the main lens barrel 11 in the axial direction, one end of the imaging lens barrel 12 is connected in the main lens barrel 11, the other end of the imaging lens barrel 12 extends outside the main lens barrel 11, and the imaging lens group 14 is arranged in the imaging lens barrel 12, so that multiple imaging lenses can be arranged in the imaging lens barrel, and the quality of the projected image is improved.

[0034] The screen frame 15 is fixedly arranged in the main lens barrel 11 and located between the imaging lens group 14 and the light source 17, the LCD liquid crystal glass 13 is arranged in the screen frame 15, and the light projected by the light source 17 can project a corresponding image after passing through the condenser lens group 16, the LCD liquid crystal glass 13 and the imaging lens group 14. One side of the main lens barrel 11 is provided with a mounting opening 1111, the LCD liquid crystal glass 13 is connected with a wire harness, the wire harness extends out of the main lens barrel 11 from the mounting opening 1111, and the LCD liquid crystal glass 13 is connected with a corresponding control device through the wire harness. The condenser lens group 16 is arranged in the main lens barrel 11 and located between the light source 17 and the LCD liquid crystal glass 13. The control device can control the arrangement change of liquid crystal molecules of the LCD liquid crystal glass 13, so as to control the light transmission and further project a plurality of different patterns.

[0035] In addition, when it is required to reduce the production and sale, a smaller number of imaging lens groups can be directly assembled into the main lens barrel 11 without using the imaging lens barrel 12, and the main lens barrel 11 can be selectively used in cooperation with the imaging lens barrel 12, so that the production compatibility is high.

[0036] The LCD liquid crystal glass 13 can be disassembled and assembled through the mounting opening 1111, so as to facilitate disassembly and replacement of the LCD liquid crystal glass 13.

[0037] In the embodiment, the imaging lens barrel 12 is in a circular truncated cone structure, and the end with a larger outer diameter of the imaging lens barrel 12 is connected in the main lens barrel 11.

[0038] Please refer to Figure 2 In the embodiment, the imaging lens group 14 includes a first imaging lens 141, a second imaging lens 142 and a third imaging lens 143, the second imaging lens 142 is located between the first imaging lens 141 and the third imaging lens 143, the first imaging lens 141 is located at one end of the imaging lens barrel 12 away from the main lens barrel 11, the first imaging lens 141 and the third imaging lens 143 are convex lenses, and the second imaging lens 142 is a concave-convex lens. In this way, a clearer projection image can be obtained.

[0039] The first imaging lens 141 and the third imaging lens 143 are made of polymethyl methacrylate (PMMA), and the second imaging lens 142 is made of polycarbonate (PC). The refractive index of the second imaging lens 142 is higher than that of the first imaging lens 141 and the third imaging lens 143, so that the chromatic aberration can be better corrected and the quality of the projection image can be improved.

[0040] In addition, the imaging lens group 14 further comprises a first gasket 144 and a second gasket 145, the first gasket 144 is arranged between the first imaging lens 141 and the second imaging lens 142, and the second gasket 145 is arranged between the second imaging lens 142 and the third imaging lens 143. The first gasket 144 and the second gasket 145 can stably fix the relative position relationship among the first imaging lens 141, the second imaging lens 142, and the third imaging lens 143.

[0041] In the embodiment, the condenser lens group 16 comprises a first condenser lens 161 and a second condenser lens 162, the first condenser lens 161 is located on the side of the second condenser lens 162 close to the light source 17, the first condenser lens 161 is a meniscus lens, the second condenser lens 162 is a convex lens, and both the first condenser lens 161 and the second condenser lens 162 are made of polycarbonate, i.e. PC material. The condensing effect of the combination of the first condenser lens 161 and the second condenser lens 162 is good.

[0042] In the embodiment, the main lens barrel 11 comprises an upper cover 111 and a lower cover 112, one side of each of the upper cover 111 and the lower cover 112 is a butt joint groove, the butt joint grooves of the upper cover 111 and the lower cover 112 butt joint to form the inner cavity of the main lens barrel 11, and the inner walls of the upper cover 111 and the lower cover 112 are each provided with a first positioning groove 1121 for positioning and fixing the screen frame 15, a second positioning groove 1122 for positioning and fixing the condenser lens group 16, and a third positioning groove 1123 for positioning and fixing the imaging lens barrel 12. Thus, the imaging lens barrel 12, the screen frame 15, and the condenser lens group 16 can be stably connected with the main lens barrel 11.

[0043] One side of the upper cover 111 close to the lower cover 112 is provided with a first insertion hole 1112, and one side of the lower cover 112 is provided with a first insertion column 1125 for plugging with the first insertion hole 1112. The stable connection of the upper cover 111 and the lower cover 112 can be realized through the interference plugging of the first insertion column 1125 and the first insertion hole 1112.

[0044] In the embodiment, the screen frame 15 comprises an upper screen cover 151 and a lower screen cover 152, the upper screen cover 151 and the lower screen cover 152 are positioned and arranged in the first positioning groove 1121, the upper screen cover 151 and the lower screen cover 152 butt joint to form an insertion slot 153, and the LCD liquid crystal glass 13 is plugged in the insertion slot 153.

[0045] Please refer to Figure 3 One side of the lower screen cover 152 is provided with a second insertion hole 1521, and one side of the upper screen cover 151 is provided with a second insertion column 1511 for plugging with the second insertion hole 1521. The stable connection of the upper screen cover 151 and the lower screen cover 152 can be realized.

[0046] Please refer to Figure 2Wherein, the inner side wall of the first positioning slot 1121 is provided with an anti-reverse mounting bump 1124, and one side of the lower screen cover 152 is provided with an anti-reverse mounting slot for positioning and cooperating with the anti-reverse mounting bump 1124. The screen frame 15 is prevented from being reversely mounted into the main lens barrel 11.

[0047] In addition, the two sides of the end of the slot 153 away from the mounting opening 1111 are provided with flared grooves 1531, and the positions of the flared grooves 1531 correspond to the end angles of the two sides of the LCD liquid crystal glass 13. The screen frame 15 is prevented from damaging the LCD liquid crystal glass 13.

[0048] Please refer to Figure 2 The two opposite inner walls of the first positioning slot 1121 are embedded with elastic strips 1126, the elastic strips 1126 protrude from the inner wall surface of the first positioning slot 1121, and the sides of the upper screen cover 151 and the lower screen cover 152 away from each other are in contact with the corresponding elastic strips 1126. In this way, during the process of inserting the LCD liquid crystal glass 13 into the slot of the screen frame 15, the distance between the upper screen cover 151 and the lower screen cover 152 can be expanded, and the friction between the LCD liquid crystal glass 13 and the upper screen cover 151 and the lower screen cover 152 is small, so that the LCD liquid crystal glass 13 is easily inserted into the slot, and the elastic extrusion force of the elastic strips 1126 on the upper screen cover 151 and the lower screen cover 152 can make the LCD liquid crystal glass 13 stably inserted into the slot 153.

[0049] The high-definition LCD screen projection lamp of the embodiment can control the arrangement change of the liquid crystal molecules of the LCD liquid crystal glass 13 through the control device, thereby controlling the light transmission, and further projecting a variety of different patterns.

[0050] The high-definition LCD screen projection lamp of the preferred embodiment can project a variety of different patterns by setting the LCD liquid crystal glass, and further set the imaging lens barrel, so that a plurality of imaging lenses are arranged in the imaging lens barrel, and a plurality of condenser lenses are arranged in the main lens barrel, so that the projection imaging effect is very clear.

[0051] In summary, although the preferred embodiment has been disclosed as above, the above-mentioned preferred embodiment is not used to limit the present application, and those skilled in the art can make various changes and decorations without departing from the spirit and scope of the present application, therefore the protection scope of the present application is subject to the range defined by the claims.

Claims

1. A high definition LCD screen projection lamp characterized by, It includes: The main mirror tube, the imaging lens barrel, the imaging lens group, the screen frame, the LCD liquid crystal glass, the condenser lens group, and the light source; The main mirror tube is formed with an inner cavity along the axial direction, the imaging lens barrel and the light source are respectively located at two ends of the main mirror tube in the axial direction, one end of the imaging lens barrel is connected in the main mirror tube, the other end of the imaging lens barrel extends outside the main mirror tube, the imaging lens group is arranged in the imaging lens barrel, the screen frame is fixedly arranged in the main mirror tube and located between the imaging lens group and the light source, the LCD liquid crystal glass is arranged in the screen frame, one side of the main mirror tube is provided with a mounting opening, the LCD liquid crystal glass is connected with a wire, the wire extends out of the main mirror tube through the mounting opening, the condenser lens group is arranged in the main mirror tube, and the condenser lens group is located between the light source and the LCD liquid crystal glass.

2. The high definition LCD screen projection lamp of claim 1, wherein, The imaging lens barrel is in a circular truncated cone structure, and one end of the imaging lens barrel with a larger outer diameter is connected in the main mirror tube.

3. The high definition LCD screen projection lamp of claim 1, wherein, The imaging lens group comprises a first imaging lens, a second imaging lens and a third imaging lens, the second imaging lens is located between the first imaging lens and the third imaging lens, the first imaging lens is located at one end of the imaging lens barrel away from the main mirror tube, the first imaging lens and the third imaging lens are convex lenses, and the second imaging lens is a concave-convex lens.

4. The high definition LCD screen projection lamp of claim 3, wherein, The first imaging lens and the third imaging lens are made of polymethyl methacrylate material, the second imaging lens is made of polycarbonate material, and the refractive index of the second imaging lens is higher than that of the first imaging lens and the third imaging lens.

5. The high definition LCD screen projection lamp of claim 3, wherein, The imaging lens group further comprises a first gasket and a second gasket, the first gasket is arranged between the first imaging lens and the second imaging lens, and the second gasket is arranged between the second imaging lens and the third imaging lens.

6. The high definition LCD screen projection lamp of claim 1, wherein, The condenser lens group comprises a first condenser lens and a second condenser lens, the first condenser lens is located on a side of the second condenser lens close to the light source, the first condenser lens is a concave-convex lens, the second condenser lens is a convex lens, and the first condenser lens and the second condenser lens are both made of polycarbonate material.

7. The high definition LCD screen projection lamp of claim 1, wherein, The main mirror tube comprises an upper cover and a lower cover, one side of the upper cover and the lower cover is a butt joint groove, the butt joint grooves of the upper cover and the lower cover form the inner cavity of the main mirror tube, inner walls of the upper cover and the lower cover are provided with a first positioning groove for positioning and fixing the screen frame, a second positioning groove for positioning and fixing the condenser lens group, and a third positioning groove for positioning and fixing the imaging lens barrel; One side of the upper cover close to the lower cover is provided with a first jack, and one side of the lower cover is provided with a first jack column for plugging with the first jack.

8. The high definition LCD screen projection lamp of claim 7, wherein, The screen frame comprises an upper screen cover and a lower screen cover, the upper screen cover and the lower screen cover are positioned and arranged in the first positioning groove, the upper screen cover and the lower screen cover butt joint to form a plug-in groove, and the LCD liquid crystal glass is plugged in the plug-in groove. One side of the lower screen cover is provided with a second insertion hole, and one side of the upper screen cover is provided with a second insertion column for being plugged with the second insertion hole.

9. The high definition LCD screen projection lamp of claim 8, wherein, An anti-reverse mounting bump is arranged on the inner side wall of the first positioning slot, and one side of the lower screen cover is provided with an anti-reverse mounting groove for being positioned and matched with the anti-reverse mounting bump.

10. The high definition LCD screen projection lamp of claim 8, wherein, Both sides of the end of the insertion slot away from the mounting opening are provided with flared grooves, and the positions of the flared grooves correspond to the end angles of both sides of one end of the LCD liquid crystal glass.

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