WO2020177593A1 - Brightness detection device, light source system and projection device - Google Patents

Brightness detection device, light source system and projection device Download PDF

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Publication number
WO2020177593A1
WO2020177593A1 PCT/CN2020/076783 CN2020076783W WO2020177593A1 WO 2020177593 A1 WO2020177593 A1 WO 2020177593A1 CN 2020076783 W CN2020076783 W CN 2020076783W WO 2020177593 A1 WO2020177593 A1 WO 2020177593A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
brightness
source system
detection device
Prior art date
Application number
PCT/CN2020/076783
Other languages
French (fr)
Chinese (zh)
Inventor
文新柏
李屹
Original Assignee
深圳光峰科技股份有限公司
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Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2020177593A1 publication Critical patent/WO2020177593A1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/02Details
    • G01J1/04Optical or mechanical part supplementary adjustable parts
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings

Definitions

  • the utility model relates to the field of optics and projection technology, in particular to a detachable brightness detection device, a light source system provided with the brightness detection device, and a projection equipment provided with the light source system.
  • a brightness sensor is generally used to detect the brightness.
  • the brightness sensor is usually set on the housing of the color wheel assembly, and the actual detection is the stray light on the optical path.
  • the stray light is formed by the diffuse reflection of the surface of some structural parts, which is largely affected.
  • the surface glossiness of the structural parts will gradually decrease during long-term use, which will directly cause the light intensity irradiated on the brightness sensor to weaken, not the brightness of the light source, and the brightness sensor There is an attenuator at the front of the head, which will also weaken the light intensity, causing deviations in the detection value of the brightness sensor, and thus the output light brightness of the light source cannot be accurately detected.
  • the purpose of the utility model is to provide a brightness detection device, a light source system and a projection device, which can accurately detect the output light brightness of the light source.
  • the light source system includes an opto-mechanical housing and a light source.
  • the light source system further includes a reflector disposed on the opto-mechanical housing.
  • the reflector is used to reflect the light output by the light source; and a brightness detection device arranged on the outside of the optical engine housing, the brightness detection device is located on the side of the reflector away from the incident light, and is used to detect the The output brightness of the light source.
  • a brightness detection device for detecting the output light brightness of a light source system
  • the light source system includes an opto-mechanical housing and a reflector, wherein the brightness detecting device is disposed in the opto-mechanical housing
  • the brightness detection device includes a brightness sensor arranged on the side of the reflector away from the incident light, and the brightness sensor is used to sense the intensity of the transmitted light of the reflector.
  • a projection device in yet another aspect, includes a projection display screen and the aforementioned light source system, wherein the brightness of the projection screen on the projection display screen can be adjusted by changing the output light brightness of the light source system .
  • the brightness detection device, light source system and projection equipment provided by the utility model can accurately detect the output light brightness of the light source by arranging the brightness detection device directly on the output light path without being affected by stray light, and the brightness adjustment device
  • the structure is simple, the assembly is reliable, and it is convenient for later disassembly and maintenance.
  • Fig. 1 is a schematic structural diagram of a light source system in an embodiment of the present invention.
  • Fig. 2 is a partial three-dimensional assembly view of the light source system in Fig. 1.
  • FIG. 3 is a schematic diagram of the three-dimensional structure of the optical engine housing in FIG. 2.
  • FIG. 4 is a schematic diagram of the three-dimensional structure of the optical engine housing in FIG. 3 from another viewing angle.
  • Fig. 5 is a cross-sectional view of the light source system in Fig. 2.
  • Fig. 6 is a perspective exploded schematic view of the light source system in Fig. 2.
  • FIG. 7 is a three-dimensional exploded schematic view of the light source system in FIG. 6 from another perspective.
  • Fig. 8 is a partial three-dimensional assembly view of the light source system in Fig. 6.
  • Fig. 9 is a partial three-dimensional assembly view of the light source system in Fig. 8 from another perspective.
  • Fig. 10 is a further perspective assembly view of the light source system in Fig. 8.
  • FIG. 11 is a schematic diagram of the three-dimensional structure of the housing in FIG. 6.
  • FIG. 12 is a three-dimensional structural diagram of the housing in FIG. 11 from another perspective.
  • Fig. 13 is a schematic structural diagram of a projection device in an embodiment of the present invention.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected or indirectly connected through an intermediary.
  • installation and “connection” should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected or indirectly connected through an intermediary.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected or indirectly connected through an intermediary.
  • the present invention provides a light source system 100.
  • the light source system 100 includes an opto-mechanical housing 10, a light source 20, a reflector 40, and a brightness detection device 200, wherein the reflector 40 is arranged on the optical machine housing 10 for reflecting the light output by the light source 20, the brightness detection device 200 is detachably mounted on the outside of the optical machine housing 10 and is located on the reflector The side of 40 facing away from the incident light, the brightness detection device 200 is used to detect the brightness of the output light of the light source 20, and can obtain corresponding detection values.
  • the reflector 40 has a certain degree of light transmission
  • the incident light of the light source 20 is reflected on the reflector 40 and also has a certain degree of transmission.
  • the brightness detection device 200 is used to detect the The light intensity of the transmitted light of the mirror 40.
  • the light source system 100 further includes a light source driver 30 which can adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200.
  • a light source driver 30 which can adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200.
  • the input end of the light source driver 30 is connected to the brightness sensor 70 included in the brightness detection device 200, and the output end is connected to the light source 20, so that the light source driver 30 can The output light brightness of the light source 20 is automatically adjusted according to the detection value of the brightness detection device 200.
  • the light source system 100 may also not need the light source driver 30, and adopt a manual adjustment method to adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200.
  • the light source system 100 can adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200 in an automatic or manual manner.
  • the opto-mechanical housing 10 includes a substantially rectangular oblique side wall 11, a substantially circular side wall 12 and connected to the oblique A main housing 13 between the side wall 11 and the circular side wall 12, wherein the side wall 111 of the inclined side wall 11 away from the main housing 13 and the circular side wall 12 away A certain angle is formed between the wall surfaces 121 on one side of the main housing 13.
  • the wall surface 111 of the inclined side wall 11 and the wall surface 121 of the circular side wall 12 form an angle of 45 degrees.
  • the angle between the wall surface 111 of the inclined side wall 11 and the wall surface 121 of the circular side wall 12 may be 30 degrees, 60 degrees or other reasonable angles.
  • the wall surface 111 is provided with a number of threaded holes 112 and a number of positioning posts 113, the wall surface 111 is also provided with a substantially rectangular receiving cavity 114, two opposite inner sides of the receiving cavity 114 are respectively provided with a convex portion 115, so The convex portion 115 is provided with a number of positioning posts 116 and a number of threaded holes 117.
  • the wall surface 111 is also provided with a sealing groove 118 on the periphery of the receiving cavity 114, and the sealing groove 118 is used for setting a sealing ring,
  • the threaded hole 112 and the positioning post 113 are located around the periphery of the sealing groove 118.
  • the four corners of the wall 111 are respectively provided with a threaded hole 112, and the opposite left and right sides of the wall 111 are respectively provided with a positioning post 113 adjacent to the two positioning posts 113
  • the left and right sides of the receiving cavity 114 are respectively provided with a convex portion 115, one of the convex portion 115 is provided with a positioning post 116 and a threaded hole 117, and the other convex portion 115 is provided with a positioning post 116 and two threaded holes 117.
  • the above-mentioned threaded holes and positioning posts can be arranged in other reasonable positions, and the number can also be other reasonable numbers.
  • the above-mentioned positioning post may be a positioning pin or a combination of a positioning post and a positioning pin.
  • the protrusions 115 may be provided on the upper and lower inner sides of the receiving cavity 114, or may be provided on the four inner sides of the receiving cavity 114.
  • a substantially rectangular cavity 131 is opened in the inside of the main casing 13 on one side close to the circular side wall 12, the rectangular cavity 131 penetrates the circular side wall 12, and the main casing
  • a light-passing hole 132 and a light-exiting hole 133 are opened in the inside of 13 near the side of the inclined side wall 11, the axis of the light-passing hole 132 is perpendicular to the axis of the light-exiting hole 133, and the light-passing hole 132 and the light exit hole 133 penetrate the bottom of the receiving cavity 114, so that the rectangular cavity 131, the light through hole 132, the light exit hole 133, and the receiving cavity 114 are in communication.
  • the axis of the light-through hole 132 and the axis of the light-exit hole 133 respectively form an angle of 45 degrees with the wall 111.
  • the axis of the light through hole 132 and the axis of the light exit hole 133 are respectively and The wall surface 111 forms two different included angles, and the two included angles are complementary to each other.
  • the circular side wall 12 and the main housing 13 respectively have some other structural features, which are used to connect other functional elements in the optical system, due to the improvement and creation of the present invention It is irrelevant, so it will not be described in detail here.
  • the reflector 40 is disposed on the optical machine housing 10 and is located on the output light path of the light source system 100. Specifically, in this embodiment, the reflector 40 is installed in front of the light exit hole 133 of the optical machine housing 10, and forms a 45-degree angle with the light emitted by the light source 20, and is used to connect the light source 20 The horizontal incident light passing through the rectangular cavity 131 and the light through hole 132 is deflected by 90 degrees, so that the incident light passes through the light exit hole 133 and is emitted vertically.
  • the reflecting mirror 40 is a substantially square reflecting mirror.
  • the reflector 40 may have other shapes such as a circle or a regular polygon.
  • multiple optical lenses can be provided on the output light path of the light source system 100.
  • two optical lenses are shown as examples in the drawings of the present invention.
  • the lenses are respectively located in front of the rectangular cavity 131 and at the aperture of the light exit hole 133.
  • the light source system 100 further includes a connecting assembly 50, the connecting assembly 50 is configured to be arranged on the opto-mechanical housing 10, and the reflector 40 is installed on the connecting assembly 50 and arranged on the connecting assembly 50.
  • the light engine housing 10 is located on the output light path of the light source system 100.
  • the connecting assembly 50 includes a substantially rectangular substrate plate 51 and a fixing plate 52.
  • the reflector 40 is mounted on the substrate plate 51 and is fixed to the optical machine housing 10 through the fixing plate 52. on.
  • the reflector 40 is tightly attached to a surface of the substrate plate 51, and a set of pressing pieces 53 with elastic hooks is used to hold the opposite left and right sides of the reflector 40
  • each pressing piece 53 has through holes at both ends and is screwed to the substrate plate 51 with a set of screws, so that the reflector 40 is mounted on the substrate plate 51,
  • a corresponding threaded hole 511 is opened on the substrate plate 51.
  • the material of the substrate plate 51 and the fixing plate 52 includes but is not limited to sheet metal materials, and the material of the pressing sheet 53 includes but is not limited to metal sheets.
  • the pressing piece 53 and the substrate plate 51 may be connected by means of clamping, gluing or welding.
  • the pressing sheet 53 and the substrate plate 51 may also be integrated.
  • an elastic gasket 54 is further provided between the pressing sheet 53 and the substrate plate 51, and the gasket 54 is positioned at the place by two sets of taper nails (not marked in the figure).
  • the gasket 54 and the substrate plate 51 are provided with cones through which cone nails pass.
  • the large hole of the tapered hole 541 is located on the side of the gasket 54 facing away from the substrate plate 51; the gasket 54 is also provided with a through hole 542 for the screw to pass through.
  • the middle of the spacer 54 is provided with a square hole 543 with the same shape as the reflector 40, the area of the square hole 543 is slightly larger than the area of the reflector 40, and the reflector 40 is arranged in the square In the hole, the thickness of the spacer 54 is slightly smaller than the thickness of the reflector 40, so that, under the action of the spacer 54, the deformation amount of the elastic hook of the pressing piece 53 when the reflector 40 is fixed It is relatively small, which can prevent the pressing force of the elastic hook from being too large and damaging the reflecting surface of the reflector 40.
  • the reflector 40 may be mounted on the substrate plate 51 by means of snapping, pasting or embedding, etc., as long as the reflector 40 is stable.
  • the substrate plate 51 is provided with a plurality of screws 513 with threads at least at the ends
  • the fixing plate 52 is provided with corresponding through holes 523
  • each of the screws 513 is sleeved with a spring 55.
  • the end of the screw 513 passes through the corresponding through hole 523 and is locked and fixed by a plurality of nuts 56, and the spring 55 is located between the substrate plate 51 and the fixing plate 52.
  • the four corners on the other surface of the substrate plate 51 facing away from the reflector 40 are respectively protruded with screws 513 with a certain thread at one end, and the fixing plate 52 corresponds to The four corners are provided with through holes 523.
  • Each screw 513 is respectively sleeved with a spring 55, the end of which penetrates through the through hole 523 and is locked by a nut 56.
  • the spring 55 is located on the substrate plate 51 and Between the fixing plates 52, so that, under the action of the elastic force of the spring 55 and the locking force of the nut 56, the substrate plate 51 with the reflector 40 is fixed on the fixing plate 52 .
  • the locking position of the nut 56 can be changed, that is, the length of the end of the screw 513 through the through hole 523 can be changed, and further, the position of the substrate plate 51 can be changed, correspondingly, the installation
  • the position of the reflector 40 on the substrate plate 51 can also be changed.
  • the reflector 40 can correct the output light angle of the light source 20 by adjusting the locking position of the nut 56.
  • the reflection angle of the reflector 40 with respect to the output light path can be fine-tuned accordingly, so that the light source system 100 undergoes light output.
  • the position of the reflector 40 can be fine-tuned by changing the locking position of the nut 56 to correct the angle of the output light. The operation is simple and effective.
  • the diameter of the screw 513 is smaller than the diameter of the through hole 523 at least at the end extension, so that the axis of the screw 513 may not coincide with the axis of the through hole 523.
  • the mirror 40 performs fine adjustment to provide a certain space for movement.
  • the reflector 40 performs output light correction within a reasonable range.
  • the opposite left and right sides of the fixing plate 52 are provided with positioning through holes 526 corresponding to the positioning posts 116 on the optical engine housing 10, and through holes corresponding to the threaded holes 117.
  • the fixing The plate 52 can be installed and positioned through the positioning posts 116 and the positioning through holes 526, and screwed through the corresponding through holes with the corresponding threaded holes 117 to fix the fixing plate 52 to the convex ⁇ 115 ⁇ . Therefore, the substrate plate 51 with the reflector 40 is fixed on the inclined side wall 11 of the optical machine housing 10 together. Specifically, the reflector 40 and the connecting assembly 50 are arranged at all. In the receiving cavity 114, the reflecting mirror 40 is located in front of the light exit hole 133.
  • the opposite left and right sides of the substrate plate 51, the pressing piece 53, and the gasket 54 are provided with concave portions (not shown in the figure) corresponding to the convex portion 115 for installation.
  • the connecting assembly 50 of the reflecting mirror 40 is disposed in the receiving cavity 114.
  • the substrate plate 51 and the fixing plate 52 both have a first light-transmitting hole 57 in an area corresponding to the output light path of the light source 20.
  • a first light transmission hole 57 is respectively provided in the area of the substrate plate 51 and the fixing plate 52 corresponding to the light-passing hole 132, so that the transmitted light irradiated by the incident light on the reflector 40 will not It is blocked by the connecting assembly 50.
  • the line connecting the cores of the two first light transmission holes 57 coincides with the axis of the light transmission hole 132, which is beneficial for the transmitted light of the reflector 40 to pass through the first transmission Light hole 57.
  • the incident light emitted by the light source 20 sequentially passes through the rectangular cavity 131 and the light-passing hole 132 in the opto-mechanical housing 10 to illuminate the reflector 40, and the incident light Reflection and transmission occur, and the transmitted light passes through the substrate plate 51 and the first light-transmitting hole 57 on the fixing plate 52 in turn, and is detected by the brightness of the side of the reflector 40 facing away from the incident light
  • the device 200 detects, and further, can adjust the output light brightness of the light source 20 in an automatic or manual manner according to the detection value of the brightness detection device 200.
  • the present invention also provides a brightness detection device 200 for detecting the brightness of the output light of the aforementioned light source system 100, wherein the brightness detection device 200 is provided in the light source system 100 Therefore, the brightness detection device 200 does not affect the internal output light path of the light source system 100, and thus does not reduce the output light effect of the light source system 100.
  • the brightness detection device 200 includes a housing 60 that is connected to the outer side of the optical machine housing 10 correspondingly, and the housing 60 is configured to be installed on the optical machine.
  • the case 10 is on.
  • the housing 60 is installed on the inclined side wall 11 to seal the reflector 40 and the connecting assembly 50.
  • the housing 60 includes a generally rectangular oblique side wall 61, a generally triangular block-shaped main casing 63, and a generally rectangular annular flange 65 protruding from the outer surface of the main casing 63
  • the annular flange 65 and the outer surface of the main housing 63 form a receiving cavity 67.
  • the wall surface 611 of the inclined side wall 61 is provided with a through hole 612 corresponding to the threaded hole 112, and a positioning through hole 613 corresponding to the positioning post 113, and the housing 60 can pass through the positioning post 113 is installed and positioned with the positioning through hole 613, and a screw is used to pass through the corresponding through hole 612 to be screwed with the corresponding threaded hole 112, so that the housing 60 is installed on the oblique of the optical engine housing 10 On the side wall 11.
  • the annular flange 65 has an end 651 away from the light source system 100, three corners of the end 651 are provided with threaded holes 652; the annular flange 65 has a substantially rectangular platform inside 653, the platform 653 is respectively provided with a threaded hole 654 along the upper and lower sides of the longitudinal direction, the surface of the platform 653 is also provided with a substantially square sink groove 655, and a circle is formed on the periphery of the sink groove 655
  • the sealing groove 656 is used for setting a sealing ring, and a second light transmission hole 69 is opened in the sink groove 655, and the second light transmission hole 69 penetrates the main housing 63.
  • a cavity 631 is opened inside the main housing 63, the cavity 631 penetrates the inclined side wall 61, and an inner surface of the main housing 63 is provided with the threaded hole 652 and the Two bosses (not marked in the figure) corresponding to the sink groove 655, the second light-transmitting hole 69 penetrates one of the bosses and communicates with the cavity 631.
  • the second light transmission hole 69 is provided corresponding to the first light transmission hole 57.
  • the hole centers of the second light transmission hole 69 and the two first light transmission holes 57 are located on the same horizontal line, so that the transmitted light of the reflector 40 can pass through in sequence The two first light transmission holes 57 and the second light transmission hole 69.
  • a sealing ring 15 is provided in the sealing groove 118 on the optical engine housing 10 to ensure that the housing 60 is connected to the optical engine housing 10
  • the sealing of the connection of the housing 10 prevents dust from entering the inner cavity of the housing, and prevents dust from adhering to the reflector 40 and affecting its light reflection and light transmission performance.
  • the sealing groove 118 may not be provided on the wall 111 of the optical machine housing 10, and the sealing ring 15 is directly bonded to the wall 111, which can also ensure that the optical machine housing The connection between the body 10 and the housing 60 is airtight.
  • the brightness detection device 200 further includes a brightness sensor 70, which is disposed on the side of the reflector 40 facing away from the incident light, and is used to sense the The light intensity of the transmitted light of the reflector 40, specifically, the brightness sensor 70 is installed in the accommodating cavity 67 and located on a side away from the light source system 100.
  • a brightness sensor 70 which is disposed on the side of the reflector 40 facing away from the incident light, and is used to sense the The light intensity of the transmitted light of the reflector 40, specifically, the brightness sensor 70 is installed in the accommodating cavity 67 and located on a side away from the light source system 100.
  • the brightness sensor 70 can be integrated on a PCB board.
  • the PCB board is provided with a through hole (not shown in the figure) corresponding to the threaded hole 654.
  • a screw can be used to pass through the corresponding through hole and the corresponding
  • the threaded hole 654 is screwed to fix the brightness sensor 70 on the surface of the platform 653 in the annular flange 65.
  • the sensing head 71 of the brightness sensor 70 is disposed in the sink 655, and the brightness sensing head 71 is disposed corresponding to the second light transmission hole 69, so that the brightness sensing head 71, the The second light transmission hole 69 and the first light transmission hole 57 in the light source system 100 are arranged correspondingly, and the transmitted light of the reflector 40 can sequentially pass through the two first light transmission holes 57 and the second The light-transmitting hole 69 is sensed by the brightness sensor head 71, and then the output light brightness of the light source system 100 is learned and the corresponding detection value is obtained.
  • the size of the apertures of the second light transmission hole 69 and the first light transmission hole 57 should ensure that the transmitted light passes through, so that the brightness sensor head 71 can sense the light intensity of the transmitted light.
  • the amount of light transmitted by the second light-transmitting hole 69 and the first light-transmitting hole 57 under the irradiation of incident light increases in order.
  • a sealing ring 75 is provided in the sealing groove 656 in the annular flange 65 to prevent dust from entering the In the sink 655, dust is prevented from adhering to the brightness sensor head 71 and affecting its photosensitive performance.
  • the sealing groove 656 may not be provided on the surface of the platform 653, and the sealing ring 75 is directly bonded to the surface of the platform 653, which can also prevent dust from entering the sink groove 655. Inside.
  • a glass cover 80 is provided at a position of the second light-transmitting hole 69 far from the opening of the light source system 100 to prevent dust from getting out of The second light-permeable hole 69 enters the sink 655 to prevent dust from adhering to the brightness sensor head 71 and protect its photosensitive performance.
  • the brightness detection device 200 further includes a protective cover 90, the protective cover 90 is provided with a plurality of heat dissipation holes, the protective cover 90 is detachably mounted on the end 651 of the annular flange 65, and Cover the receiving cavity 67 to form a closed receiving space with the annular flange 65, and the brightness sensor 70 is located in the receiving space.
  • the protective cover 90 is provided with through holes corresponding to the threaded holes 652, and four screws are used to pass through the corresponding through holes and the corresponding threaded holes 652.
  • the protective cover 90 is covered on the end 651 of the annular flange 65, so that the protective cover 90 and the annular flange 65 form a closed receiving space.
  • the sensor 70 is located in the receiving space, and the protective cover 90 can protect the brightness sensor 70.
  • the brightness sensor 70 fails and needs to be maintained or replaced, it is only necessary to simply disassemble the protective cover 90, which is convenient and quick to operate.
  • the brightness detection device 200 by setting the brightness detection device 200 directly to the output light path of the light source system 100, the brightness sensor 70 senses the direct light of the light source system 100, which can avoid Affected by stray light, the detected value can accurately reflect the output light brightness of the light source system 100.
  • the brightness detection device 200 is installed through some simple structures, which is convenient for disassembly and maintenance, and is beneficial to be applied to various products that require brightness detection.
  • the present invention also applies the light source system 100 to a projection device 300.
  • the projection device 300 includes a projection display screen 330 and the above-mentioned light source system 100, wherein the projection display screen 330
  • the brightness of the projection screen can be adjusted by changing the brightness of the output light of the light source system 100.
  • the light source system 100 provided with the brightness detection device 200 and the projection equipment 300 provided with the light source system 100 both have all the functions and advantages of the brightness detection device 200 described above, and can The brightness of the output light is accurately detected, and then the brightness of the output light can be adjusted as needed.
  • the brightness detection device 200 can be installed and disassembled as required, which is convenient and quick, and does not affect the output light path of the light source.
  • the light source system 100 and the projection device 300 provided by the present invention respectively have some other functional elements, which are not related to the improvement and creation of the present invention, so they will not be described in detail here.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The utility model provides a projection device comprising a projection display screen and a light source system. The light source system comprises an optical machine housing, a light source, a reflector provided on the optical machine housing, and a brightness detection device. The reflector is used for reflecting light output from the light source. The brightness detection device includes a brightness sensor, which is disposed on a side of the reflector facing away from the incident light and is used for sensing the transmission light intensity of the reflector. The utility model further provides the brightness detection device and the light source system. The brightness detection device, the light source system and the projection device according to the utility model can accurately detect the output light brightness of the light source.

Description

亮度检测装置、光源系统及投影设备Brightness detection device, light source system and projection equipment 技术领域Technical field
本实用新型涉及光学与投影技术领域,尤其涉及一种可拆卸的亮度检测装置、设置有所述亮度检测装置的光源系统,以及设置有所述光源系统的投影设备。The utility model relates to the field of optics and projection technology, in particular to a detachable brightness detection device, a light source system provided with the brightness detection device, and a projection equipment provided with the light source system.
背景技术Background technique
投影设备现今已普遍的应用于各种会议以及家庭剧院等场景中,然而,投影设备的光源系统在长期工作过程中,随着使用时间的加长,其光源的输出光亮度会逐渐衰减,进而影响投影画面的亮度。因此,有必要对光源的输出光亮度进行检测,并进行适当的调节,以使得光源的输出光亮度保持稳定。Nowadays, projection equipment has been widely used in various conferences and home theaters. However, the light source system of the projection equipment will gradually attenuate as the use time increases during the long-term operation, thereby affecting The brightness of the projected screen. Therefore, it is necessary to detect the output light brightness of the light source and make appropriate adjustments so that the output light brightness of the light source remains stable.
目前,为快速掌握光源的输出光亮度,一般会利用亮度感应器来进行亮度的检测。在现有技术中,亮度感应器通常会设置于色轮组件的外壳上面,实际检测到的是光路上的杂散光,这些杂散光是通过一些结构件表面的漫反射形成,很大程度上会受到结构件表面光泽度的影响,而结构件的表面光泽度在长期使用过程中会慢慢下降,将直接导致照射在亮度感应器上的光强减弱,并非光源亮度降低,而且,在亮度感应头前端设置有一个衰减片,同样会减弱光强,导致亮度感应器的检测值产生偏差,从而不能准确检测出光源的输出光亮度。At present, in order to quickly grasp the output brightness of the light source, a brightness sensor is generally used to detect the brightness. In the prior art, the brightness sensor is usually set on the housing of the color wheel assembly, and the actual detection is the stray light on the optical path. The stray light is formed by the diffuse reflection of the surface of some structural parts, which is largely affected. Affected by the surface glossiness of the structural parts, the surface glossiness of the structural parts will gradually decrease during long-term use, which will directly cause the light intensity irradiated on the brightness sensor to weaken, not the brightness of the light source, and the brightness sensor There is an attenuator at the front of the head, which will also weaken the light intensity, causing deviations in the detection value of the brightness sensor, and thus the output light brightness of the light source cannot be accurately detected.
实用新型内容Utility model content
本实用新型的目的在于提供一种亮度检测装置、光源系统及投影设备,能够准确的检测出光源的输出光亮度。The purpose of the utility model is to provide a brightness detection device, a light source system and a projection device, which can accurately detect the output light brightness of the light source.
为解决上述技术问题,一方面,提供一种光源系统,所述光源系统包括光机壳体及光源,其中,所述光源系统还包括设置于所述光机壳体上的反射镜,所述反射镜用于反射所述光源输出的光线;以及设置于所述光机壳体外侧的亮度检测装置,所述亮度检测装置位于所述反射镜背向入射光的一侧,用于检测所述光源的输出光亮度。In order to solve the above technical problems, on the one hand, a light source system is provided. The light source system includes an opto-mechanical housing and a light source. The light source system further includes a reflector disposed on the opto-mechanical housing. The reflector is used to reflect the light output by the light source; and a brightness detection device arranged on the outside of the optical engine housing, the brightness detection device is located on the side of the reflector away from the incident light, and is used to detect the The output brightness of the light source.
另一方面,提供一种亮度检测装置,用于检测一光源系统的输出光亮度,所述光源系统包括光机壳体及反射镜,其中,所述亮度检测装置设置于所述光机壳体上,所述亮度检测装置包括设置于所述反射镜背向入射光的一侧的亮度感应器,所述亮度感应器用于感测所述反射镜的透射光线的光强。In another aspect, a brightness detection device is provided for detecting the output light brightness of a light source system, the light source system includes an opto-mechanical housing and a reflector, wherein the brightness detecting device is disposed in the opto-mechanical housing Above, the brightness detection device includes a brightness sensor arranged on the side of the reflector away from the incident light, and the brightness sensor is used to sense the intensity of the transmitted light of the reflector.
再一方面,提供一种投影设备,所述投影设备包括投影显示屏以及前述的光源系统,其中,所述投影显示屏上的投影画面的亮度可通过改变所述光源系统的输出光亮度进行调节。In yet another aspect, a projection device is provided. The projection device includes a projection display screen and the aforementioned light source system, wherein the brightness of the projection screen on the projection display screen can be adjusted by changing the output light brightness of the light source system .
本实用新型提供的亮度检测装置、光源系统及投影设备,通过将亮度检测装置正对输出光路设置,不受杂散光的影响,能够准确的检测出光源的输出光亮度,而且,该亮度调节装置的结构简单,装配可靠,便于后期拆卸与维护。The brightness detection device, light source system and projection equipment provided by the utility model can accurately detect the output light brightness of the light source by arranging the brightness detection device directly on the output light path without being affected by stray light, and the brightness adjustment device The structure is simple, the assembly is reliable, and it is convenient for later disassembly and maintenance.
附图说明Description of the drawings
为了更清楚地说明本实用新型实施例的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本实用新型一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to explain the technical solutions of the embodiments of the present utility model more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.
图1是本实用新型一实施例中的光源系统的结构简图。Fig. 1 is a schematic structural diagram of a light source system in an embodiment of the present invention.
图2是图1中的光源系统的部分立体装配图。Fig. 2 is a partial three-dimensional assembly view of the light source system in Fig. 1.
图3是图2中的光机壳体的立体结构示意图。FIG. 3 is a schematic diagram of the three-dimensional structure of the optical engine housing in FIG. 2.
图4是图3中的光机壳体的另一视角的立体结构示意图。FIG. 4 is a schematic diagram of the three-dimensional structure of the optical engine housing in FIG. 3 from another viewing angle.
图5是图2中的光源系统的剖视图。Fig. 5 is a cross-sectional view of the light source system in Fig. 2.
图6是图2中的光源系统的立体分解示意图。Fig. 6 is a perspective exploded schematic view of the light source system in Fig. 2.
图7是图6中的光源系统的另一视角的立体分解示意图。FIG. 7 is a three-dimensional exploded schematic view of the light source system in FIG. 6 from another perspective.
图8是图6中的光源系统的部分立体装配图。Fig. 8 is a partial three-dimensional assembly view of the light source system in Fig. 6.
图9是图8中的光源系统的另一视角的部分立体装配图。Fig. 9 is a partial three-dimensional assembly view of the light source system in Fig. 8 from another perspective.
图10是图8中的光源系统的进一步立体装配图。Fig. 10 is a further perspective assembly view of the light source system in Fig. 8.
图11是图6中的外壳的立体结构示意图。FIG. 11 is a schematic diagram of the three-dimensional structure of the housing in FIG. 6.
图12是图11中的外壳的另一视角的立体结构示意图。FIG. 12 is a three-dimensional structural diagram of the housing in FIG. 11 from another perspective.
图13是本实用新型一实施例中的投影设备的结构简图。Fig. 13 is a schematic structural diagram of a projection device in an embodiment of the present invention.
具体实施方式detailed description
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
在本实用新型的描述中,需要说明的是,术语“上”、“下”、“左”、“右”、“水平”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本实用新型和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本实用新型的限制。此外,术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。在本实用新型的描述中,“若干”的含义是两个或两个以上,除非另有明确具体的限定。In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", "vertical", "inner", "outer" and other directions indicate directions Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and Operation, therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of the present invention, "several" means two or more than two, unless otherwise specifically defined.
在本实用新型的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可根据具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, it should be noted that, unless otherwise clearly defined and defined, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood according to specific circumstances.
请一并参阅图1和图2,本实用新型提供一种光源系统100,所述光源系统100包括光机壳体10、光源20、反射镜40以及亮度检测装置200,其中,所述反射镜40设置于所述光机壳体10上,用于反射所述光源20输出的光线,所述亮度检测装置200可拆卸地安装于所述光机壳体10的外侧,并位于所述反射镜40背向入射光的一侧,所述亮度检测装置200用于检测所述光源20的输出光亮度,并可得到相应的检测值。Please refer to FIGS. 1 and 2 together. The present invention provides a light source system 100. The light source system 100 includes an opto-mechanical housing 10, a light source 20, a reflector 40, and a brightness detection device 200, wherein the reflector 40 is arranged on the optical machine housing 10 for reflecting the light output by the light source 20, the brightness detection device 200 is detachably mounted on the outside of the optical machine housing 10 and is located on the reflector The side of 40 facing away from the incident light, the brightness detection device 200 is used to detect the brightness of the output light of the light source 20, and can obtain corresponding detection values.
其中,所述反射镜40具有一定透光性,所述光源20的入射光照射在所述反射镜40上发生反射的同时也会发生一定的透射,所述亮度检测装置200用于检测所述反射镜40的透射光线的光强。Wherein, the reflector 40 has a certain degree of light transmission, the incident light of the light source 20 is reflected on the reflector 40 and also has a certain degree of transmission. The brightness detection device 200 is used to detect the The light intensity of the transmitted light of the mirror 40.
在一些实施例中,所述光源系统100还包括一光源驱动器30,所述光源驱动器30可根据所述亮度检测装置200的检测值对所述光源20的输出光亮度进 行调节。具体的,如图1所示,所述光源驱动器30的输入端与所述亮度检测装置200包括的亮度感应器70连接,其输出端与所述光源20连接,从而,所述光源驱动器30可根据所述亮度检测装置200的检测值对所述光源20的输出光亮度进行自动调节。In some embodiments, the light source system 100 further includes a light source driver 30 which can adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200. Specifically, as shown in FIG. 1, the input end of the light source driver 30 is connected to the brightness sensor 70 included in the brightness detection device 200, and the output end is connected to the light source 20, so that the light source driver 30 can The output light brightness of the light source 20 is automatically adjusted according to the detection value of the brightness detection device 200.
在其他实施例中,所述光源系统100也可以不需要光源驱动器30,而采用人工调节的方式来根据所述亮度检测装置200的检测值对所述光源20的输出光亮度进行调节。In other embodiments, the light source system 100 may also not need the light source driver 30, and adopt a manual adjustment method to adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200.
从而,本实用新型中,所述光源系统100可根据所述亮度检测装置200的检测值以自动调节或者人工调节的方式对其光源20的输出光亮度进行调节。Therefore, in the present invention, the light source system 100 can adjust the output light brightness of the light source 20 according to the detection value of the brightness detection device 200 in an automatic or manual manner.
请一并参阅图3和图4,所述光源系统100中,所述光机壳体10包括一大致呈矩形的斜侧壁11、一大致呈圆形的侧壁12及连接于所述斜侧壁11和所述圆形侧壁12之间的一主壳体13,其中,所述斜侧壁11远离所述主壳体13一侧的壁面111与所述圆形侧壁12远离所述主壳体13一侧的壁面121之间呈一定夹角。优选的,在本实施例中,所述斜侧壁11的壁面111与所述圆形侧壁12的壁面121呈45度夹角。Please refer to FIGS. 3 and 4 together. In the light source system 100, the opto-mechanical housing 10 includes a substantially rectangular oblique side wall 11, a substantially circular side wall 12 and connected to the oblique A main housing 13 between the side wall 11 and the circular side wall 12, wherein the side wall 111 of the inclined side wall 11 away from the main housing 13 and the circular side wall 12 away A certain angle is formed between the wall surfaces 121 on one side of the main housing 13. Preferably, in this embodiment, the wall surface 111 of the inclined side wall 11 and the wall surface 121 of the circular side wall 12 form an angle of 45 degrees.
在其他实施例中,所述斜侧壁11的壁面111与所述圆形侧壁12的壁面121之间的夹角可以是30度、60度或者其他合理的角度。In other embodiments, the angle between the wall surface 111 of the inclined side wall 11 and the wall surface 121 of the circular side wall 12 may be 30 degrees, 60 degrees or other reasonable angles.
所述壁面111上设置有若干螺纹孔112和若干定位柱113,所述壁面111上还开设有一大致呈矩形的收容腔114,所述收容腔114相对的两内侧分别设置有一凸部115,所述凸部115上设有若干定位柱116和若干螺纹孔117,所述壁面111上于所述收容腔114的外围还开设有一圈密封槽118,所述密封槽118用于设置一密封圈,所述螺纹孔112及所述定位柱113位于所述密封槽118的外围四周。具体的,在本实施例中,所述壁面111的四角位置分别设置有一螺纹孔112,所述壁面111相对的左右两侧分别设置有一定位柱113,与所述两个定位柱113相邻近的所述收容腔114的左右两内侧分别设置有一所述凸部115,其中一所述凸部115上设置有一定位柱116和一螺纹孔117,另一所述凸部115上设置有一定位柱116和两个螺纹孔117。The wall surface 111 is provided with a number of threaded holes 112 and a number of positioning posts 113, the wall surface 111 is also provided with a substantially rectangular receiving cavity 114, two opposite inner sides of the receiving cavity 114 are respectively provided with a convex portion 115, so The convex portion 115 is provided with a number of positioning posts 116 and a number of threaded holes 117. The wall surface 111 is also provided with a sealing groove 118 on the periphery of the receiving cavity 114, and the sealing groove 118 is used for setting a sealing ring, The threaded hole 112 and the positioning post 113 are located around the periphery of the sealing groove 118. Specifically, in this embodiment, the four corners of the wall 111 are respectively provided with a threaded hole 112, and the opposite left and right sides of the wall 111 are respectively provided with a positioning post 113 adjacent to the two positioning posts 113 The left and right sides of the receiving cavity 114 are respectively provided with a convex portion 115, one of the convex portion 115 is provided with a positioning post 116 and a threaded hole 117, and the other convex portion 115 is provided with a positioning post 116 and two threaded holes 117.
在其他实施例中,上述的螺纹孔、定位柱可以设置于其他的合理位置,数量也可以是其他的合理数量。In other embodiments, the above-mentioned threaded holes and positioning posts can be arranged in other reasonable positions, and the number can also be other reasonable numbers.
在其他实施例中,上述的定位柱可以是定位销或者定位柱与定位销的组合。In other embodiments, the above-mentioned positioning post may be a positioning pin or a combination of a positioning post and a positioning pin.
在其他实施例中,所述凸部115可以设置于所述收容腔114的上下两内侧,也可以设置于所述收容腔114的四个内侧上。In other embodiments, the protrusions 115 may be provided on the upper and lower inner sides of the receiving cavity 114, or may be provided on the four inner sides of the receiving cavity 114.
所述主壳体13的内部靠近于所述圆形侧壁12的一侧开设有一大致呈矩形的空腔131,所述矩形空腔131贯穿所述圆形侧壁12,所述主壳体13的内部靠近于所述斜侧壁11的一侧还开设有一通光孔132以及一出光孔133,所述通光孔132的轴线与所述出光孔133的轴线垂直,所述通光孔132及所述出光孔133贯穿所述收容腔114的底部,从而,所述矩形空腔131、所述通光孔132、所述出光孔133以及所述收容腔114相连通。A substantially rectangular cavity 131 is opened in the inside of the main casing 13 on one side close to the circular side wall 12, the rectangular cavity 131 penetrates the circular side wall 12, and the main casing A light-passing hole 132 and a light-exiting hole 133 are opened in the inside of 13 near the side of the inclined side wall 11, the axis of the light-passing hole 132 is perpendicular to the axis of the light-exiting hole 133, and the light-passing hole 132 and the light exit hole 133 penetrate the bottom of the receiving cavity 114, so that the rectangular cavity 131, the light through hole 132, the light exit hole 133, and the receiving cavity 114 are in communication.
在本实施例中,所述通光孔132的轴线及所述出光孔133的轴线分别与所述壁面111呈45度夹角。In this embodiment, the axis of the light-through hole 132 and the axis of the light-exit hole 133 respectively form an angle of 45 degrees with the wall 111.
在其他实施例中,当所述壁面111与所述壁面121之间的夹角是45度以外的其他角度时,所述通光孔132的轴线及所述出光孔133的轴线分别与所述壁面111形成不同的两个夹角,所述两个夹角互余。In other embodiments, when the angle between the wall surface 111 and the wall surface 121 is an angle other than 45 degrees, the axis of the light through hole 132 and the axis of the light exit hole 133 are respectively and The wall surface 111 forms two different included angles, and the two included angles are complementary to each other.
需要说明的是,所述圆形侧壁12及所述主壳体13还分别具有一些其他的结构特征,用于连接所述光学系统中的其他功能元件,因与本实用新型的改进与创造无关,故不在此进行详细描述。It should be noted that the circular side wall 12 and the main housing 13 respectively have some other structural features, which are used to connect other functional elements in the optical system, due to the improvement and creation of the present invention It is irrelevant, so it will not be described in detail here.
如图5至图10中所示,所述反射镜40设置于所述光机壳体10上而位于所述光源系统100的输出光路上。具体的,在本实施例中,所述反射镜40安装于所述光机壳体10的出光孔133前,且与所述光源20发出的光线呈45度角,用于将所述光源20穿过所述矩形空腔131及所述通光孔132的水平入射光偏转90度,进而使入射光穿过所述出光孔133并竖直射出。其中,所述反射镜40为大致呈方形的反射镜。As shown in FIGS. 5 to 10, the reflector 40 is disposed on the optical machine housing 10 and is located on the output light path of the light source system 100. Specifically, in this embodiment, the reflector 40 is installed in front of the light exit hole 133 of the optical machine housing 10, and forms a 45-degree angle with the light emitted by the light source 20, and is used to connect the light source 20 The horizontal incident light passing through the rectangular cavity 131 and the light through hole 132 is deflected by 90 degrees, so that the incident light passes through the light exit hole 133 and is emitted vertically. Wherein, the reflecting mirror 40 is a substantially square reflecting mirror.
在其他实施例中,所述反射镜40可以是圆形、正多边形等其他形状。In other embodiments, the reflector 40 may have other shapes such as a circle or a regular polygon.
需要说明的是,在所述光源系统100的输出光路上可设置多个光学透镜,为了简化描述,仅在本实用新型的附图中示意出两个光学透镜作为例子,具体的,两个光学透镜分别位于所述矩形空腔131前及所述出光孔133孔口处。It should be noted that multiple optical lenses can be provided on the output light path of the light source system 100. To simplify the description, only two optical lenses are shown as examples in the drawings of the present invention. Specifically, two optical lenses The lenses are respectively located in front of the rectangular cavity 131 and at the aperture of the light exit hole 133.
进一步的,所述光源系统100还包括一连接组件50,所述连接组件50用于设置于所述光机壳体10上,所述反射镜40安装于所述连接组件50上而设置于所述光机壳体10上,从而位于所述光源系统100的输出光路上。Further, the light source system 100 further includes a connecting assembly 50, the connecting assembly 50 is configured to be arranged on the opto-mechanical housing 10, and the reflector 40 is installed on the connecting assembly 50 and arranged on the connecting assembly 50. The light engine housing 10 is located on the output light path of the light source system 100.
所述连接组件50包括大致呈矩形的一衬底板51以及一固定板52,所述反 射镜40安装于所述衬底板51上,并通过所述固定板52固定于所述光机壳体10上。具体的,在本实施例中,所述反射镜40紧贴于所述衬底板51的一表面上,并用一组带有弹性卡勾的压紧片53将所述反射镜40相对的左右两边进行压紧固定,每一所述压紧片53的两端具有通孔并利用一组螺钉与所述衬底板51进行螺接,从而将所述反射镜40安装于所述衬底板51上,相应的,所述衬底板51上开设有对应的螺纹孔511。The connecting assembly 50 includes a substantially rectangular substrate plate 51 and a fixing plate 52. The reflector 40 is mounted on the substrate plate 51 and is fixed to the optical machine housing 10 through the fixing plate 52. on. Specifically, in this embodiment, the reflector 40 is tightly attached to a surface of the substrate plate 51, and a set of pressing pieces 53 with elastic hooks is used to hold the opposite left and right sides of the reflector 40 For pressing and fixing, each pressing piece 53 has through holes at both ends and is screwed to the substrate plate 51 with a set of screws, so that the reflector 40 is mounted on the substrate plate 51, Correspondingly, a corresponding threaded hole 511 is opened on the substrate plate 51.
其中,所述衬底板51和所述固定板52的材料包括但不限于钣金材料,所述压紧片53的材料包括但不限于金属片。The material of the substrate plate 51 and the fixing plate 52 includes but is not limited to sheet metal materials, and the material of the pressing sheet 53 includes but is not limited to metal sheets.
在其他实施例中,所述压紧片53和所述衬底板51可以通过卡合、胶接或者焊接等方式连接。In other embodiments, the pressing piece 53 and the substrate plate 51 may be connected by means of clamping, gluing or welding.
在其他实施例中,所述压紧片53和所述衬底板51还可以是一体的。In other embodiments, the pressing sheet 53 and the substrate plate 51 may also be integrated.
优选的,在本实施例中,所述压紧片53和所述衬底板51之间进一步设置有一弹性垫片54,所述垫片54通过两组锥钉(图中未标示)定位于所述衬底板51上,并通过所述压紧片53与所述衬底板51的螺接进行固定,相应的,所述垫片54和所述衬底板51上开设有供锥钉穿过的锥形孔541和通孔512,所述锥孔541的大孔位于所述垫片54背向所述衬底板51的一侧;所述垫片54上还开设有供螺钉穿过的通孔542;所述垫片54的中间开设有与所述反射镜40形状一致的方孔543,所述方孔543的面积略大于所述反射镜40的面积,所述反射镜40设置于所述方孔内,所述垫片54的厚度略小于所述反射镜40的厚度,从而,在垫片54的作用下,所述压紧片53固定所述反射镜40时其弹性卡勾的变形量相对较小,可避免弹性卡勾的压紧力过大而损害所述反射镜40的反射面。Preferably, in this embodiment, an elastic gasket 54 is further provided between the pressing sheet 53 and the substrate plate 51, and the gasket 54 is positioned at the place by two sets of taper nails (not marked in the figure). On the substrate plate 51, and fixed by the screw connection of the pressing piece 53 and the substrate plate 51, correspondingly, the gasket 54 and the substrate plate 51 are provided with cones through which cone nails pass. The large hole of the tapered hole 541 is located on the side of the gasket 54 facing away from the substrate plate 51; the gasket 54 is also provided with a through hole 542 for the screw to pass through. The middle of the spacer 54 is provided with a square hole 543 with the same shape as the reflector 40, the area of the square hole 543 is slightly larger than the area of the reflector 40, and the reflector 40 is arranged in the square In the hole, the thickness of the spacer 54 is slightly smaller than the thickness of the reflector 40, so that, under the action of the spacer 54, the deformation amount of the elastic hook of the pressing piece 53 when the reflector 40 is fixed It is relatively small, which can prevent the pressing force of the elastic hook from being too large and damaging the reflecting surface of the reflector 40.
在其他实施例中,所述反射镜40可以通过卡合、贴接或者嵌设等方式安装于所述衬底板51上,只需保证所述反射镜40稳固即可。In other embodiments, the reflector 40 may be mounted on the substrate plate 51 by means of snapping, pasting or embedding, etc., as long as the reflector 40 is stable.
进一步的,所述衬底板51上设置有若干至少在端部具有螺纹的螺杆513,所述固定板52上开设有相应的通孔523,每一所述螺杆513套设有一弹簧55,所述螺杆513的端部穿出于相应的通孔523并通过若干螺母56进行锁紧固定,所述弹簧55位于所述衬底板51和所述固定板52之间。Further, the substrate plate 51 is provided with a plurality of screws 513 with threads at least at the ends, the fixing plate 52 is provided with corresponding through holes 523, and each of the screws 513 is sleeved with a spring 55. The end of the screw 513 passes through the corresponding through hole 523 and is locked and fixed by a plurality of nuts 56, and the spring 55 is located between the substrate plate 51 and the fixing plate 52.
具体的,在本实施例中,所述衬底板51背向所述反射镜40的另一表面上的四角位置分别凸设有一端部具有一定螺纹的螺杆513,所述固定板52相对应的四角位置设有通孔523,每一螺杆513分别套设有一弹簧55,其端部穿出于 所述通孔523并通过一螺母56进行锁紧,所述弹簧55位于所述衬底板51和所述固定板52之间,从而,在所述弹簧55的弹力和所述螺母56的锁紧力作用下,安装有所述反射镜40的所述衬底板51固定于所述固定板52上。Specifically, in this embodiment, the four corners on the other surface of the substrate plate 51 facing away from the reflector 40 are respectively protruded with screws 513 with a certain thread at one end, and the fixing plate 52 corresponds to The four corners are provided with through holes 523. Each screw 513 is respectively sleeved with a spring 55, the end of which penetrates through the through hole 523 and is locked by a nut 56. The spring 55 is located on the substrate plate 51 and Between the fixing plates 52, so that, under the action of the elastic force of the spring 55 and the locking force of the nut 56, the substrate plate 51 with the reflector 40 is fixed on the fixing plate 52 .
其中,所述螺母56的锁紧位置可以改变,即所述螺杆513的端部穿出于所述通孔523的长度可以改变,进而,所述衬底板51的位置可以改变,相应的,安装于所述衬底板51上的所述反射镜40的位置也可以改变,所述反射镜40可以通过调节所述螺母56的锁紧位置来校正所述光源20的输出光角度。Wherein, the locking position of the nut 56 can be changed, that is, the length of the end of the screw 513 through the through hole 523 can be changed, and further, the position of the substrate plate 51 can be changed, correspondingly, the installation The position of the reflector 40 on the substrate plate 51 can also be changed. The reflector 40 can correct the output light angle of the light source 20 by adjusting the locking position of the nut 56.
当改变所述衬底板51上的一个或多个螺杆513的端部穿出长度时,所述反射镜40相对于输出光路的反射角度即可进行相应微调,从而,所述光源系统100经出光孔133输出的光线出现角度偏差时,可通过改变所述螺母56的锁紧位置来微调所述反射镜40的位置,以校正输出光线的角度,操作简单有效。When the length of the end of one or more screws 513 on the substrate plate 51 is changed, the reflection angle of the reflector 40 with respect to the output light path can be fine-tuned accordingly, so that the light source system 100 undergoes light output. When the light output from the hole 133 has an angular deviation, the position of the reflector 40 can be fine-tuned by changing the locking position of the nut 56 to correct the angle of the output light. The operation is simple and effective.
需要说明的是,所述螺杆513的直径至少在端部伸出部分要小于所述通孔523的直径,使得所述螺杆513的轴线可与所述通孔523的轴线不重合,为所述反射镜40进行微调提供一定的活动空间。It should be noted that the diameter of the screw 513 is smaller than the diameter of the through hole 523 at least at the end extension, so that the axis of the screw 513 may not coincide with the axis of the through hole 523. The mirror 40 performs fine adjustment to provide a certain space for movement.
可以理解的是,所述反射镜40是在一个合理的范围内进行输出光的校正。It can be understood that the reflector 40 performs output light correction within a reasonable range.
进一步的,所述固定板52相对的左右两侧设置有与所述光机壳体10上的定位柱116对应的定位通孔526,以及与所述螺纹孔117对应的通孔,所述固定板52可通过所述定位柱116和所述定位通孔526进行安装定位,并利用螺钉穿过相应的通孔与对应的螺纹孔117进行螺接,将所述固定板52固定于所述凸部115上。从而,安装有所述反射镜40的所述衬底板51一并固定于所述光机壳体10的斜侧壁11上,具体的,所述反射镜40及所述连接组件50设置于所述收容腔114内,所述反射镜40位于出光孔133前。Further, the opposite left and right sides of the fixing plate 52 are provided with positioning through holes 526 corresponding to the positioning posts 116 on the optical engine housing 10, and through holes corresponding to the threaded holes 117. The fixing The plate 52 can be installed and positioned through the positioning posts 116 and the positioning through holes 526, and screwed through the corresponding through holes with the corresponding threaded holes 117 to fix the fixing plate 52 to the convex部115上. Therefore, the substrate plate 51 with the reflector 40 is fixed on the inclined side wall 11 of the optical machine housing 10 together. Specifically, the reflector 40 and the connecting assembly 50 are arranged at all. In the receiving cavity 114, the reflecting mirror 40 is located in front of the light exit hole 133.
需要说明的是,所述衬底板51、所述压紧片53以及所述垫片54相对的左右两侧开设有与所述凸部115对应的凹部(图中未标示),以便安装有所述反射镜40的所述连接组件50设置于所述收容腔114内。It should be noted that the opposite left and right sides of the substrate plate 51, the pressing piece 53, and the gasket 54 are provided with concave portions (not shown in the figure) corresponding to the convex portion 115 for installation. The connecting assembly 50 of the reflecting mirror 40 is disposed in the receiving cavity 114.
其中,所述衬底板51和所述固定板52在对应于所述光源20的输出光路的区域中均开设有一第一透光孔57。具体的,所述衬底板51和所述固定板52对应于通光孔132的区域中分别开设有一第一透光孔57,从而,入射光照射在所述反射镜40上的透射光线不会被所述连接组件50阻挡。优选的,在本实施例中,所述两个第一透光孔57的孔心连线与所述通光孔132的轴线重合,有利于 所述反射镜40的透射光线穿过所述第一透光孔57。Wherein, the substrate plate 51 and the fixing plate 52 both have a first light-transmitting hole 57 in an area corresponding to the output light path of the light source 20. Specifically, a first light transmission hole 57 is respectively provided in the area of the substrate plate 51 and the fixing plate 52 corresponding to the light-passing hole 132, so that the transmitted light irradiated by the incident light on the reflector 40 will not It is blocked by the connecting assembly 50. Preferably, in this embodiment, the line connecting the cores of the two first light transmission holes 57 coincides with the axis of the light transmission hole 132, which is beneficial for the transmitted light of the reflector 40 to pass through the first transmission Light hole 57.
从而,所述光源系统100中,所述光源20发出的入射光依次穿过所述光机壳体10内的矩形空腔131及通光孔132而照射在所述反射镜40上,入射光发生反射和透射,其透射光线又依次穿过所述衬底板51和所述固定板52上的第一透光孔57而被所述反射镜40背向入射光的一侧的所述亮度检测装置200检测到,进而,可根据所述亮度检测装置200的检测值以自动调节或者人工调节的方式对其光源20的输出光亮度进行调节。Therefore, in the light source system 100, the incident light emitted by the light source 20 sequentially passes through the rectangular cavity 131 and the light-passing hole 132 in the opto-mechanical housing 10 to illuminate the reflector 40, and the incident light Reflection and transmission occur, and the transmitted light passes through the substrate plate 51 and the first light-transmitting hole 57 on the fixing plate 52 in turn, and is detected by the brightness of the side of the reflector 40 facing away from the incident light The device 200 detects, and further, can adjust the output light brightness of the light source 20 in an automatic or manual manner according to the detection value of the brightness detection device 200.
进一步的,如图5中所示,本实用新型还提供一种用于检测前述光源系统100的输出光亮度的亮度检测装置200,其中,所述亮度检测装置200设置于所述光源系统100的光机壳体10上,从而,所述亮度检测装置200并不会影响到所述光源系统100的内部输出光路,进而不会降低所述光源系统100的输出光效。Further, as shown in FIG. 5, the present invention also provides a brightness detection device 200 for detecting the brightness of the output light of the aforementioned light source system 100, wherein the brightness detection device 200 is provided in the light source system 100 Therefore, the brightness detection device 200 does not affect the internal output light path of the light source system 100, and thus does not reduce the output light effect of the light source system 100.
请一并参阅图11和图12,所述亮度检测装置200包括一外壳60,所述外壳60与所述光机壳体10的外侧对应连接,所述外壳60用于安装于所述光机壳体10上。具体的,所述外壳60安装于所述斜侧壁11上,并将所述反射镜40及所述连接组件50进行密封。Please refer to FIGS. 11 and 12 together. The brightness detection device 200 includes a housing 60 that is connected to the outer side of the optical machine housing 10 correspondingly, and the housing 60 is configured to be installed on the optical machine. The case 10 is on. Specifically, the housing 60 is installed on the inclined side wall 11 to seal the reflector 40 and the connecting assembly 50.
所述外壳60包括一大致呈矩形的斜侧壁61、一大致呈三棱块状的主壳体63以及凸设于所述主壳体63外表面上的一大致呈矩形的环形凸缘65,所述环形凸缘65与所述主壳体63的外表面形成一收容腔67。The housing 60 includes a generally rectangular oblique side wall 61, a generally triangular block-shaped main casing 63, and a generally rectangular annular flange 65 protruding from the outer surface of the main casing 63 The annular flange 65 and the outer surface of the main housing 63 form a receiving cavity 67.
其中,所述斜侧壁61的壁面611上设置有与所述螺纹孔112对应的通孔612,以及与所述定位柱113对应的定位通孔613,所述外壳60可通过所述定位柱113与所述定位通孔613进行安装定位,并利用螺钉穿过相应的通孔612与相应的螺纹孔112进行螺接,从而,将所述外壳60安装于所述光机壳体10的斜侧壁11上。Wherein, the wall surface 611 of the inclined side wall 61 is provided with a through hole 612 corresponding to the threaded hole 112, and a positioning through hole 613 corresponding to the positioning post 113, and the housing 60 can pass through the positioning post 113 is installed and positioned with the positioning through hole 613, and a screw is used to pass through the corresponding through hole 612 to be screwed with the corresponding threaded hole 112, so that the housing 60 is installed on the oblique of the optical engine housing 10 On the side wall 11.
所述环形凸缘65具有一远离所述光源系统100的端部651,所述端部651的其中三个角落位置开设有螺纹孔652;所述环形凸缘65内具有一大致呈矩形的平台653,所述平台653沿其长度方向的上下两侧分别开设有一螺纹孔654,所述平台653的表面上还开设有一大致呈方形的沉槽655,于所述沉槽655的外围开设有一圈密封槽656,所述密封槽656用于设置一密封圈,所述沉槽655内还开设有一第二透光孔69,所述第二透光孔69贯通于所述主壳体63。The annular flange 65 has an end 651 away from the light source system 100, three corners of the end 651 are provided with threaded holes 652; the annular flange 65 has a substantially rectangular platform inside 653, the platform 653 is respectively provided with a threaded hole 654 along the upper and lower sides of the longitudinal direction, the surface of the platform 653 is also provided with a substantially square sink groove 655, and a circle is formed on the periphery of the sink groove 655 The sealing groove 656 is used for setting a sealing ring, and a second light transmission hole 69 is opened in the sink groove 655, and the second light transmission hole 69 penetrates the main housing 63.
所述主壳体63的内部开设有一空腔631,所述空腔631贯通于所述斜侧壁61,于所述主壳体63的一内表面上具有与所述螺纹孔652及所述沉槽655对应的两个凸台(图中未标示),所述第二透光孔69贯通于其中一凸台并与所述空腔631连通。A cavity 631 is opened inside the main housing 63, the cavity 631 penetrates the inclined side wall 61, and an inner surface of the main housing 63 is provided with the threaded hole 652 and the Two bosses (not marked in the figure) corresponding to the sink groove 655, the second light-transmitting hole 69 penetrates one of the bosses and communicates with the cavity 631.
其中,所述外壳60连接于所述光机壳体10上时,所述第二透光孔69与所述第一透光孔57对应设置。优选的,在本实施例中,所述第二透光孔69与所述两个第一透光孔57的孔心位于同一水平线上,从而,所述反射镜40的透射光线可依次穿过所述两个第一透光孔57以及所述第二透光孔69。Wherein, when the housing 60 is connected to the optical engine housing 10, the second light transmission hole 69 is provided corresponding to the first light transmission hole 57. Preferably, in this embodiment, the hole centers of the second light transmission hole 69 and the two first light transmission holes 57 are located on the same horizontal line, so that the transmitted light of the reflector 40 can pass through in sequence The two first light transmission holes 57 and the second light transmission hole 69.
可以理解的是,所述外壳60与所述光机壳体10连接时,所述光机壳体10上的密封槽118内设置有一密封圈15,以保证所述外壳60与所述光机壳体10的连接密封性,防止灰尘进入壳体内腔中,避免灰尘附着于所述反射镜40上而影响其反光和透光性能。It is understandable that when the housing 60 is connected to the optical engine housing 10, a sealing ring 15 is provided in the sealing groove 118 on the optical engine housing 10 to ensure that the housing 60 is connected to the optical engine housing 10 The sealing of the connection of the housing 10 prevents dust from entering the inner cavity of the housing, and prevents dust from adhering to the reflector 40 and affecting its light reflection and light transmission performance.
在其他实施例中,所述光机壳体10的壁面111上也可以不开设所述密封槽118,而直接将密封圈15粘接于所述壁面111上,同样可以保证所述光机壳体10与所述外壳60的连接密封性。In other embodiments, the sealing groove 118 may not be provided on the wall 111 of the optical machine housing 10, and the sealing ring 15 is directly bonded to the wall 111, which can also ensure that the optical machine housing The connection between the body 10 and the housing 60 is airtight.
如图6至图10中所示,所述亮度检测装置200还包括一亮度感应器70,所述亮度感应器70设置于所述反射镜40背向入射光的一侧,用于感测所述反射镜40的透射光线的光强,具体的,所述亮度感应器70安装于所述收容腔67内且位于远离所述光源系统100的一侧。As shown in FIGS. 6 to 10, the brightness detection device 200 further includes a brightness sensor 70, which is disposed on the side of the reflector 40 facing away from the incident light, and is used to sense the The light intensity of the transmitted light of the reflector 40, specifically, the brightness sensor 70 is installed in the accommodating cavity 67 and located on a side away from the light source system 100.
所述亮度感应器70可集成于一PCB板上,所述PCB板上开设有与所述螺纹孔654对应的通孔(图中未标示),可利用螺钉穿过相应的通孔与相应的螺纹孔654进行螺接,将所述亮度感应器70固定于所述环形凸缘65内的所述平台653的表面上。其中,所述亮度感应器70的感应头71设置于所述沉槽655内,所述亮度感应头71与所述第二透光孔69对应设置,从而,所述亮度感应头71、所述第二透光孔69及所述光源系统100中的第一透光孔57对应设置,所述反射镜40的透射光线可依次穿过所述两个第一透光孔57及所述第二透光孔69并被所述亮度感应头71感测到,进而获知所述光源系统100的输出光亮度并获得相应的检测值。The brightness sensor 70 can be integrated on a PCB board. The PCB board is provided with a through hole (not shown in the figure) corresponding to the threaded hole 654. A screw can be used to pass through the corresponding through hole and the corresponding The threaded hole 654 is screwed to fix the brightness sensor 70 on the surface of the platform 653 in the annular flange 65. Wherein, the sensing head 71 of the brightness sensor 70 is disposed in the sink 655, and the brightness sensing head 71 is disposed corresponding to the second light transmission hole 69, so that the brightness sensing head 71, the The second light transmission hole 69 and the first light transmission hole 57 in the light source system 100 are arranged correspondingly, and the transmitted light of the reflector 40 can sequentially pass through the two first light transmission holes 57 and the second The light-transmitting hole 69 is sensed by the brightness sensor head 71, and then the output light brightness of the light source system 100 is learned and the corresponding detection value is obtained.
可以理解的是,所述第二透光孔69及所述第一透光孔57的孔口大小应保证有透射光线通过,进而使所述亮度感应头71感测到透射光线的光强。优选的, 在本实施例中,所述第二透光孔69及所述第一透光孔57在入射光照射下的透光量依次增大。It is understandable that the size of the apertures of the second light transmission hole 69 and the first light transmission hole 57 should ensure that the transmitted light passes through, so that the brightness sensor head 71 can sense the light intensity of the transmitted light. Preferably, in this embodiment, the amount of light transmitted by the second light-transmitting hole 69 and the first light-transmitting hole 57 under the irradiation of incident light increases in order.
同样可以理解的是,所述亮度感应器70安装于所述环形凸缘65的内部时,所述环形凸缘65内的所述密封槽656内设置有一密封圈75,以防止灰尘进入所述沉槽655内,避免灰尘附着于所述亮度感应头71上而影响其感光性能。It is also understandable that when the brightness sensor 70 is installed inside the annular flange 65, a sealing ring 75 is provided in the sealing groove 656 in the annular flange 65 to prevent dust from entering the In the sink 655, dust is prevented from adhering to the brightness sensor head 71 and affecting its photosensitive performance.
在其他实施例中,所述平台653的表面上也可以不开设所述密封槽656,而直接将密封圈75粘接于所述平台653的表面上,同样可以防止灰尘进入所述沉槽655内。In other embodiments, the sealing groove 656 may not be provided on the surface of the platform 653, and the sealing ring 75 is directly bonded to the surface of the platform 653, which can also prevent dust from entering the sink groove 655. Inside.
优选的,本实施例中,在所述沉槽655内,于所述第二透光孔69远离所述光源系统100一侧的孔口位置并设置有一玻璃罩80,用于防止灰尘从所述第二透光孔69进入所述沉槽655内,以避免灰尘附着于所述亮度感应头71上,保护其感光性能。Preferably, in this embodiment, in the sink 655, a glass cover 80 is provided at a position of the second light-transmitting hole 69 far from the opening of the light source system 100 to prevent dust from getting out of The second light-permeable hole 69 enters the sink 655 to prevent dust from adhering to the brightness sensor head 71 and protect its photosensitive performance.
进一步的,所述亮度检测装置200还包括一防护罩90,所述防护罩90上开设有若干散热孔,所述防护罩90可拆卸地安装于所述环形凸缘65的端部651,并对所述收容腔67进行封盖,与所述环形凸缘65形成一封闭的收容空间,所述亮度感应器70位于所述收容空间内。Further, the brightness detection device 200 further includes a protective cover 90, the protective cover 90 is provided with a plurality of heat dissipation holes, the protective cover 90 is detachably mounted on the end 651 of the annular flange 65, and Cover the receiving cavity 67 to form a closed receiving space with the annular flange 65, and the brightness sensor 70 is located in the receiving space.
具体的,本实施例中的,所述防护罩90的其中三个角落位置开设有与所述螺纹孔652对应的通孔,并利用四个螺钉穿过相应的通孔与相应的螺纹孔652进行螺接固定,将所述防护罩90盖合于所述环形凸缘65的端部651,从而,所述防护罩90与所述环形凸缘65围拢形成一封闭的收容空间,所述亮度感应器70位于所述收容空间内,所述防护罩90可以保护所述亮度感应器70。Specifically, in this embodiment, three corners of the protective cover 90 are provided with through holes corresponding to the threaded holes 652, and four screws are used to pass through the corresponding through holes and the corresponding threaded holes 652. For screwing and fixing, the protective cover 90 is covered on the end 651 of the annular flange 65, so that the protective cover 90 and the annular flange 65 form a closed receiving space. The sensor 70 is located in the receiving space, and the protective cover 90 can protect the brightness sensor 70.
再者,在本实施例中,若所述亮度感应器70发生故障需要维护或者更换时,只需简单的拆卸所述防护罩90即可,操作方便快捷。Furthermore, in this embodiment, if the brightness sensor 70 fails and needs to be maintained or replaced, it is only necessary to simply disassemble the protective cover 90, which is convenient and quick to operate.
从而,在本实用新型中,通过将所述亮度检测装置200正对所述光源系统100的输出光路进行设置,所述亮度感应器70感测的是所述光源系统100的直射光,可以免受杂散光的影响,其检测值能够准确的反映出所述光源系统100的输出光亮度。而且,所述亮度检测装置200通过一些简单的结构进行安装,便于拆卸与维护,有利于将其应用到多种需要进行亮度检测的产品中。Therefore, in the present invention, by setting the brightness detection device 200 directly to the output light path of the light source system 100, the brightness sensor 70 senses the direct light of the light source system 100, which can avoid Affected by stray light, the detected value can accurately reflect the output light brightness of the light source system 100. Moreover, the brightness detection device 200 is installed through some simple structures, which is convenient for disassembly and maintenance, and is beneficial to be applied to various products that require brightness detection.
如图13所示,本实用新型还将所述光源系统100应用到一投影设备300中,所述投影设备300包括一投影显示屏330以及上述的光源系统100,其中,所述 投影显示屏330上的投影画面的亮度可通过改变所述光源系统100的输出光亮度进行调节。As shown in FIG. 13, the present invention also applies the light source system 100 to a projection device 300. The projection device 300 includes a projection display screen 330 and the above-mentioned light source system 100, wherein the projection display screen 330 The brightness of the projection screen can be adjusted by changing the brightness of the output light of the light source system 100.
从而,在本实用新型中,设置有所述亮度检测装置200的所述光源系统100及设置有所述光源系统100的所述投影设备300均具备上述亮度检测装置200的所有功能和优点,能够准确的检测出输出光亮度,进而可根据需要对输出光的亮度进行调节。此外,所述亮度检测装置200可根据需要而进行安装于拆卸,方便快捷,也不会影响光源的输出光路。Therefore, in the present invention, the light source system 100 provided with the brightness detection device 200 and the projection equipment 300 provided with the light source system 100 both have all the functions and advantages of the brightness detection device 200 described above, and can The brightness of the output light is accurately detected, and then the brightness of the output light can be adjusted as needed. In addition, the brightness detection device 200 can be installed and disassembled as required, which is convenient and quick, and does not affect the output light path of the light source.
可以理解的是,本实用新型所提供的所述光源系统100和所述投影设备300还分别具有其他的一些功能元件,因与本实用新型的改进与创造无关,故此处不做详细描述。It is understandable that the light source system 100 and the projection device 300 provided by the present invention respectively have some other functional elements, which are not related to the improvement and creation of the present invention, so they will not be described in detail here.
以上是本实用新型实施例的实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型实施例原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本实用新型的保护范围。The above is the implementation of the embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiment of the present invention, several improvements and modifications can be made. These improvements and Retouching is also regarded as the protection scope of this utility model.

Claims (10)

  1. 一种光源系统,包括光机壳体及光源,其特征在于,所述光源系统还包括:A light source system, including an opto-mechanical housing and a light source, characterized in that the light source system further includes:
    反射镜,所述反射镜设置于所述光机壳体上,用于反射所述光源输出的光线;A reflector, the reflector is arranged on the opto-mechanical housing and used to reflect the light output by the light source;
    亮度检测装置,所述亮度检测装置设置于所述光机壳体的外侧,并位于所述反射镜背向入射光的一侧,用于检测所述光源的输出光亮度。The brightness detection device is arranged on the outer side of the opto-mechanical housing and is located on the side of the reflector facing away from the incident light, and is used for detecting the output light brightness of the light source.
  2. 根据权利要求1所述的光源系统,其特征在于,所述光源系统还包括连接组件,所述反射镜安装于所述连接组件上,所述连接组件设置于所述光机壳体上。The light source system according to claim 1, wherein the light source system further comprises a connecting component, the reflector is installed on the connecting component, and the connecting component is arranged on the opto-mechanical housing.
  3. 根据权利要求2所述的光源系统,其特征在于,所述连接组件包括衬底板以及固定板,所述反射镜安装于所述衬底板上,并通过所述固定板安装于所述光机壳体上,所述衬底板与所述固定板在对应于所述光源的输出光路的区域中均开设有第一透光孔,所述亮度检测装置的亮度感应头与所述第一透光孔对应设置。The light source system according to claim 2, wherein the connecting assembly comprises a substrate plate and a fixing plate, the reflector is mounted on the substrate plate, and is mounted on the optical chassis through the fixing plate Physically, both the substrate plate and the fixing plate are provided with a first light transmission hole in an area corresponding to the output light path of the light source, the brightness sensor head of the brightness detection device and the first light transmission hole Corresponding settings.
  4. 根据权利要求3所述的光源系统,其特征在于,所述衬底板上设置有若干至少在端部具有螺纹的螺杆,所述固定板上开设有相应的通孔,每一所述螺杆套设有一弹簧,所述螺杆的端部穿出于相应的通孔并通过螺母进行锁紧固定,所述弹簧位于所述衬底板和所述固定板之间。The light source system according to claim 3, wherein the substrate plate is provided with a plurality of screws with threads at least at the ends, the fixing plate is provided with corresponding through holes, and each screw is sleeved There is a spring, the end of the screw threaded through the corresponding through hole and locked and fixed by a nut, and the spring is located between the substrate plate and the fixing plate.
  5. 根据权利要求4所述的光源系统,其特征在于,所述螺母的锁紧位置可调,所述反射镜可以通过调节所述螺母的锁紧位置来校正所述光源的输出光角度。The light source system according to claim 4, wherein the locking position of the nut is adjustable, and the reflector can correct the output light angle of the light source by adjusting the locking position of the nut.
  6. 一种亮度检测装置,用于检测一光源系统的输出光亮度,所述光源系统包括光机壳体及反射镜,其特征在于,所述亮度检测装置设置于所述光机壳体上,所述亮度检测装置包括:A brightness detection device is used to detect the output light brightness of a light source system. The light source system includes an optomechanical housing and a reflector. The brightness detection device is characterized in that the brightness detection device is arranged on the optomechanical housing. The brightness detection device includes:
    亮度感应器,所述亮度感应器设置于所述反射镜背向入射光的一侧,用于感测所述反射镜的透射光线的光强。Brightness sensor, the brightness sensor is arranged on the side of the reflecting mirror away from the incident light, and is used for sensing the light intensity of the transmitted light of the reflecting mirror.
  7. 根据权利要求6所述的亮度检测装置,其特征在于,所述亮度检测装置还包括外壳,所述外壳与所述光机壳体的外侧对应连接,所述外壳的外表面上设置有一环形凸缘,所述环形凸缘与所述外壳的外表面形成收容腔,所述亮度 感应器设置于所述收容腔内且位于远离所述光源系统的一侧。The brightness detection device according to claim 6, wherein the brightness detection device further comprises a housing, the housing is correspondingly connected to the outside of the opto-mechanical housing, and an annular protrusion is provided on the outer surface of the housing. Edge, the annular flange and the outer surface of the housing form a receiving cavity, and the brightness sensor is arranged in the receiving cavity and located on a side away from the light source system.
  8. 根据权利要求7所述的亮度检测装置,其特征在于,所述外壳对应于所述环形凸缘的区域内开设有第二透光孔,所述亮度感应器的亮度感应头、所述第二透光孔及所述光源系统中的第一透光孔对应设置。The brightness detection device according to claim 7, wherein a second light transmission hole is opened in the area of the housing corresponding to the annular flange, and the brightness sensing head of the brightness sensor, the second The light transmission hole and the first light transmission hole in the light source system are correspondingly arranged.
  9. 根据权利要求7所述的亮度检测装置,其特征在于,所述亮度检测装置还包括防护罩,所述防护罩安装于所述环形凸缘远离所述光源系统的端部并对所述收容腔进行封盖,而形成封闭的收容空间。The brightness detection device according to claim 7, wherein the brightness detection device further comprises a protective cover installed on the end of the annular flange away from the light source system and facing the receiving cavity Cover it to form a closed storage space.
  10. 一种投影设备,包括投影显示屏,其特征在于,所述投影设备还包括根据权利要求1至5任一所述的光源系统,所述投影显示屏上的投影画面的亮度可通过改变所述光源系统的输出光亮度进行调节。A projection device, comprising a projection display screen, wherein the projection device further comprises the light source system according to any one of claims 1 to 5, and the brightness of the projection screen on the projection display screen can be changed by changing the The output light brightness of the light source system is adjusted.
PCT/CN2020/076783 2019-03-04 2020-02-26 Brightness detection device, light source system and projection device WO2020177593A1 (en)

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CN209543035U (en) * 2019-03-04 2019-10-25 深圳光峰科技股份有限公司 Luminance detection device, light-source system and projection device

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