CN217360537U - Light source collimation structure and projector - Google Patents
Light source collimation structure and projector Download PDFInfo
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- CN217360537U CN217360537U CN202220678935.5U CN202220678935U CN217360537U CN 217360537 U CN217360537 U CN 217360537U CN 202220678935 U CN202220678935 U CN 202220678935U CN 217360537 U CN217360537 U CN 217360537U
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Abstract
An embodiment of the utility model provides a light source collimation structure and projecting apparatus relates to the projecting apparatus field. This light source collimation structure includes ray apparatus main part support, collimating lens and PCB board, and ray apparatus main part support is used for being connected with the ray apparatus, and collimating lens and ray apparatus main part leg joint are equipped with the luminous chip of LED on the PCB board, are equipped with the setting element on the PCB board, and the PCB board passes through setting element and ray apparatus main part leg joint, and the light emitting area of the luminous chip of LED is towards collimating lens to be located collimating lens's optical axis. The light source collimation structure is connected with the optical machine main body support through the positioning piece on the PCB, so that the light emitting surface of the LED light emitting chip faces the collimation lens and is positioned on the optical axis of the collimation lens, and the tolerance between the PCB and the main case of the projector and the tolerance between the PCB and the casing of the collimation system are relieved. Meanwhile, the light source collimation structure can be installed without adopting a positioning support, so that the cost of the optical machine is reduced.
Description
Technical Field
The utility model relates to a projecting apparatus field particularly, relates to a light source collimation structure and projecting apparatus.
Background
The miniature projection technology is a novel modern projection display technology, and a Digital Light Processing (DLP) projection display mode has the characteristics of high brightness, high contrast and high resolution, is combined with a novel LED Light source to realize miniaturized portable miniature projection, and meets the requirements of people on the portability and the freedom of projection display. A tricolor (R, G, B) diode (LED) is often used as a light source in a DLP projector, and the mounting accuracy of the tricolor LED directly affects the transmission direction of the light source, thereby further affecting the utilization rate of the light source, that is, the energy utilization rate of the light source. In the prior art, a PCB board equipped with three-color LEDs is usually directly fixed on a main chassis of a projector or a housing of a collimating system by means of screws, studs or gluing.
In the prior art, a large tolerance exists between the PCB and the main chassis of the projector or between the PCB and the housing of the collimation system due to the PCB fixing manner, so that light energy attenuation is serious, and projection uniformity and projection quality on a projection plane are seriously affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light source collimation structure and projecting apparatus, it can be alleviated between the mainframe shell of PCB board and projecting apparatus, or tolerance between the casing of PCB board and collimation system.
The embodiment of the utility model discloses a can realize like this:
an embodiment of the utility model provides a light source collimation structure, it includes:
the optical machine main body bracket is used for being connected with an optical machine;
the collimating lens is connected with the optical machine main body support;
the LED light-emitting device comprises a PCB, wherein an LED light-emitting chip is arranged on the PCB, a positioning piece is arranged on the PCB, the PCB passes through the positioning piece and is connected with a support of the optical machine main body, and the light-emitting surface of the LED light-emitting chip faces towards the collimating lens and is located on the optical axis of the collimating lens.
Optionally, the positioning element is a positioning hole, the optical machine main body support is provided with a positioning column, and the positioning hole is matched with the positioning column.
Optionally, the number of the positioning holes is multiple, and the plurality of positioning holes are arranged on the PCB at intervals.
Optionally, the aperture range of the positioning hole is between 0.5cm and 1.5 cm.
Optionally, at least one of the positioning holes is a long slot hole.
Optionally, the inner wall of the positioning hole is provided with a frosted layer.
Optionally, the ray apparatus main part support is equipped with the holding tank, collimating lens set up in the holding tank.
Optionally, the edge of the accommodating groove is provided with an adjusting hole, and the adjusting hole is communicated with the accommodating groove.
Optionally, the number of the adjusting holes is two, and the two adjusting holes are arranged at the edge of the accommodating groove at intervals.
The embodiment of the utility model provides a projecting apparatus is still provided, including ray apparatus and light source collimation structure, the ray apparatus with ray apparatus main part leg joint, collimating lens with ray apparatus main part leg joint, be equipped with the luminous chip of LED on the PCB board, be equipped with the setting element on the PCB board, the PCB board passes through the setting element with ray apparatus main part leg joint, the luminous surface orientation of the luminous chip of LED collimating lens, and be located on collimating lens's the optical axis.
The utility model discloses beneficial effect of light source collimation structure and projecting apparatus includes, for example:
this light source collimation structure includes ray apparatus main part support, collimating lens and PCB board, and ray apparatus main part support is used for being connected with the ray apparatus, and collimating lens and ray apparatus main part leg joint are equipped with the luminous chip of LED on the PCB board, are equipped with the setting element on the PCB board, and the PCB board passes through setting element and ray apparatus main part leg joint, and the light emitting area of the luminous chip of LED is towards collimating lens to be located collimating lens's optical axis. The light source collimation structure is connected with the optical machine main body support through the positioning piece on the PCB, so that the light emitting surface of the LED light emitting chip faces the collimation lens and is positioned on the optical axis of the collimation lens, and the tolerance between the PCB and the main case of the projector and the tolerance between the PCB and the casing of the collimation system are relieved. Meanwhile, the light source collimation structure can be installed without adopting a positioning support, so that the cost of the optical machine is reduced.
This projecting apparatus includes ray apparatus and light source collimation structure, ray apparatus and ray apparatus main part leg joint, collimating lens and ray apparatus main part leg joint are equipped with the luminous chip of LED on the PCB board, are equipped with the setting element on the PCB board, and the PCB board passes through setting element and ray apparatus main part leg joint, and the light emitting area of the luminous chip of LED is towards collimating lens to be located collimating lens's optical axis. The light source collimation structure is connected with the optical machine main body support through the positioning piece on the PCB, so that the light emitting surface of the LED light emitting chip faces the collimation lens and is positioned on the optical axis of the collimation lens, and the tolerance between the PCB and the main case of the projector and the tolerance between the PCB and the casing of the collimation system are relieved. Meanwhile, the light source collimation structure can be installed without adopting a positioning support, so that the cost of the optical machine is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a projector according to this embodiment;
fig. 2 is a schematic structural diagram of a light source collimation structure provided in this embodiment;
fig. 3 is a schematic structural diagram of a PCB provided in this embodiment;
fig. 4 is a schematic structural diagram of a carriage of an optical machine main body according to this embodiment.
An icon: 100-optical machine main body support; 110-a positioning column; 120-accommodating grooves; 130-an adjustment hole; 200-a collimating lens; 300-a PCB board; 310-LED light emitting chips; 320-positioning holes; 330-a package; 1000-a light source collimating structure; 2000-ray machine; 3000-projector.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The miniature projection technology is a novel modern projection display technology, and a Digital Light Processing (DLP) projection display mode has the characteristics of high brightness, high contrast and high resolution, is combined with a novel LED Light source to realize miniaturized portable miniature projection, and meets the requirements of people on the portability and the freedom of projection display. A three-color (R, G, B) diode (LED) is often used as a light source in a DLP projector, and the mounting accuracy of the three-color LED directly affects the transmission direction of the light source, thereby further affecting the utilization rate of the light source, i.e., the energy utilization rate of the light source. In the prior art, a PCB board equipped with a three-color LED is usually directly fixed on a main chassis of a projector or a housing of an alignment system by screws, studs, or gluing.
The PCB fixing method in the related art may cause a large tolerance between the PCB and the main chassis of the projector, or between the PCB and the housing of the collimating system, thereby causing a serious attenuation of light energy, and further seriously affecting the projection uniformity and the projection quality on the projection plane.
Referring to fig. 1, the present embodiment provides a projector 3000, the projector 3000 includes an optical engine 2000 and a light source collimating structure 1000, the optical engine 2000 is connected to the light source collimating structure 1000, the projector 3000 can effectively improve the above mentioned technical problems, and can alleviate the tolerance between the PCB 300 and the main chassis of the projector 3000 or between the PCB 300 and the chassis of the collimating system.
Referring to fig. 1 and 2, the light source collimating structure 1000 includes an optical engine main body support 100, a collimating lens 200, and a PCB 300, where the optical engine main body support 100 is used to connect with an optical engine 2000, the collimating lens 200 is connected with the optical engine main body support 100, an LED light emitting chip 310 is disposed on the PCB 300, a positioning element is disposed on the PCB 300, the PCB 300 is connected with the optical engine main body support 100 through the positioning element, and a light emitting surface of the LED light emitting chip 310 faces the collimating lens 200 and is located on an optical axis of the collimating lens 200.
In this embodiment, the LED light emitting chip 310 is disposed in the middle of the PCB 300, the positioning element is disposed together with the PCB 300, the PCB 300 is connected to the optical engine main body support 100 through the positioning element, so that the light emitting surface of the LED light emitting chip 310 faces the collimating lens 200, and is located on the optical axis of the collimating lens 200, and the positioning support is no longer needed to be reused for positioning, thereby not only reducing the probability of error generation, but also reducing the cost of the optical engine 2000, and the operation is more convenient and accurate.
It is understood that the LED light emitting chip 310 is attached to the PCB 300. After the PCB 300 is connected to the optical machine main body support 100, the light emitting surface of the LED light emitting chip 310 faces the collimating lens 200 and is located on the optical axis of the collimating lens 200.
Referring to fig. 3, in the embodiment, the positioning element is a positioning hole 320, the optical machine main body support 100 is provided with a positioning column 110, and the positioning hole 320 is matched with the positioning column 110.
Specifically, the positioning hole 320 and the positioning column 110 are sleeved together, and the PCB 300 is locked on the carriage body support 100 by screws.
The number of the positioning holes 320 is plural, and the plurality of positioning holes 320 are disposed on the PCB 300 at intervals.
In the present embodiment, the number of the positioning holes 320 is two. In other embodiments, the number of positioning holes 320 may be increased or decreased. And is not particularly limited herein.
It should be noted that the aperture of the positioning hole 320 is in the range of 0.5cm to 1.5 cm.
More, at least one of the positioning holes 320 is a long slot. Specifically, in the present embodiment, one positioning hole 320 is a long slot, and the other positioning hole 320 is a round hole.
In addition, the inner wall of the positioning hole 320 is provided with a frosted layer.
It should be further noted that the PCB 300 is provided with a packaging portion 330, and the packaging portion 330 covers the outside of the LED light emitting chip 310.
Referring to fig. 4, the optical main body bracket 100 is provided with a receiving groove 120, and the collimating lens 200 is disposed in the receiving groove 120.
The edge of the receiving groove 120 is provided with an adjusting hole 130, and the adjusting hole 130 is communicated with the receiving groove 120.
In this embodiment, the collimating lens 200 is directly mounted in the accommodating groove 120, and is fixed by dispensing through the adjusting hole 130.
In this embodiment, the number of the adjusting holes 130 is two, and the two adjusting holes 130 are disposed at the edge of the accommodating groove 120 at intervals. In other embodiments, the number of adjustment holes 130 may be increased or decreased. And is not particularly limited herein.
The light source collimating structure 1000 provided by this embodiment has at least the following advantages:
LED light emitting chip 310 sets up in the middle part of PCB board 300, the setting element sets up together with PCB board 300, PCB board 300 passes through the setting element and is connected with ray apparatus main part support 100 for LED light emitting chip 310's light emitting area is towards collimating lens 200, and be located collimating lens 200's optical axis, no longer need reuse the locating support in addition to fix a position, not only reduced the probability of producing the error, still reduced ray apparatus 2000's cost, it is convenient more accurate that the while operation is got up.
To sum up, the embodiment of the utility model provides a light source collimation structure 1000 and projecting apparatus 3000, this light source collimation structure 1000 includes ray apparatus main part support 100, collimating lens 200 and PCB board 300, ray apparatus main part support 100 is used for being connected with ray apparatus 2000, collimating lens 200 is connected with ray apparatus main part support 100, be equipped with LED luminescence chip 310 on the PCB board 300, be equipped with the setting element on the PCB board 300, PCB board 300 passes through the setting element and is connected with ray apparatus main part support 100, LED luminescence chip 310's light emitting area is towards collimating lens 200, and be located collimating lens 200's optical axis. The light source collimating structure 1000 is connected to the optical machine main body support 100 through a positioning element on the PCB 300, so that the light emitting surface of the LED light emitting chip 310 faces the collimating lens 200 and is located on the optical axis of the collimating lens 200, and thus, the tolerance between the PCB 300 and the main chassis of the projector 3000 and the tolerance between the PCB 300 and the housing of the collimating system are relieved. Meanwhile, the light source collimation structure 1000 can be installed without adopting a positioning support, so that the cost of the optical machine 2000 is reduced.
This projector 3000 includes ray apparatus 2000 and light source collimation structure 1000, and ray apparatus 2000 is connected with ray apparatus main part support 100, and collimating lens 200 is connected with ray apparatus main part support 100, is equipped with LED luminescence chip 310 on the PCB board 300, is equipped with the setting element on the PCB board 300, and PCB board 300 passes through the setting element to be connected with ray apparatus main part support 100, and the light emitting area of LED luminescence chip 310 is towards collimating lens 200 to be located collimating lens 200's optical axis. The light source collimating structure 1000 is connected to the optical machine main body support 100 through a positioning element on the PCB 300, so that the light emitting surface of the LED light emitting chip 310 faces the collimating lens 200 and is located on the optical axis of the collimating lens 200, and thus, the tolerance between the PCB 300 and the main chassis of the projector 3000 and the tolerance between the PCB 300 and the housing of the collimating system are relieved. Meanwhile, the light source collimation structure 1000 can be installed without adopting a positioning support, so that the cost of the optical machine 2000 is reduced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A light source collimating structure, comprising:
the optical machine main body support (100), the optical machine main body support (100) is used for being connected with an optical machine (2000);
the collimating lens (200), the collimating lens (200) is connected with the optical machine main body support (100);
PCB board (300), be equipped with LED luminescence chip (310) on PCB board (300), be equipped with the setting element on PCB board (300), PCB board (300) pass through the setting element with ray apparatus main part support (100) are connected, the light emitting area orientation of LED luminescence chip (310) collimating lens (200), and be located on the optical axis of collimating lens (200).
2. The light source collimation structure as recited in claim 1, wherein the positioning element is a positioning hole (320), the optical engine main body support (100) is provided with a positioning column (110), and the positioning hole (320) is matched with the positioning column (110).
3. The light source collimating structure of claim 2, wherein the number of the positioning holes (320) is plural, and the plural positioning holes (320) are spaced apart from each other on the PCB board (300).
4. A light source collimating structure as claimed in claim 3, wherein the aperture of the positioning hole (320) ranges between 0.5cm and 1.5 cm.
5. A light source collimating structure as claimed in claim 3, wherein at least one of the positioning holes (320) is a slotted hole.
6. A light source collimating structure as claimed in claim 3, characterized in that the inner wall of the positioning hole (320) is provided with a frosted layer.
7. The light source collimating structure of any one of claims 1 to 6, wherein the carriage (100) is provided with a receiving slot (120), and the collimating lens (200) is disposed in the receiving slot (120).
8. The light source collimating structure of claim 7, wherein the edge of the receiving groove (120) is provided with an adjusting hole (130), and the adjusting hole (130) is communicated with the receiving groove (120).
9. The light source collimating structure of claim 8, wherein the number of the adjusting holes (130) is two, and two of the adjusting holes (130) are disposed at an edge of the accommodating groove (120) at intervals.
10. A projector, characterized in that, including ray apparatus (2000) and the light source collimation structure of any one of claims 1-9, ray apparatus (2000) with ray apparatus main part support (100) are connected, collimating lens (200) with ray apparatus main part support (100) are connected, be equipped with the luminous chip of LED (310) on PCB board (300), be equipped with the setting element on PCB board (300), PCB board (300) pass through the setting element with ray apparatus main part support (100) are connected, the light emitting area orientation of the luminous chip of LED (310) collimating lens (200) to be located on the optical axis of collimating lens (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220678935.5U CN217360537U (en) | 2022-03-24 | 2022-03-24 | Light source collimation structure and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220678935.5U CN217360537U (en) | 2022-03-24 | 2022-03-24 | Light source collimation structure and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217360537U true CN217360537U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220678935.5U Active CN217360537U (en) | 2022-03-24 | 2022-03-24 | Light source collimation structure and projector |
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| Country | Link |
|---|---|
| CN (1) | CN217360537U (en) |
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- 2022-03-24 CN CN202220678935.5U patent/CN217360537U/en active Active
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