CN115704985A - Light intensity detection device and projector control apparatus - Google Patents
Light intensity detection device and projector control apparatus Download PDFInfo
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- CN115704985A CN115704985A CN202110923515.9A CN202110923515A CN115704985A CN 115704985 A CN115704985 A CN 115704985A CN 202110923515 A CN202110923515 A CN 202110923515A CN 115704985 A CN115704985 A CN 115704985A
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Abstract
The invention relates to a light intensity detection device and a projector control device, which are applied to a projector device, wherein the projector device comprises a light source and a light engine, the light intensity detection device comprises a first light intensity sensor, a second light intensity sensor and a processing module, and the first light intensity sensor is arranged at the emergent light of the light engine and is used for collecting the first light intensity of the emergent light of the light engine; the second light intensity sensor is arranged at the emergent light of the light source and used for collecting second light intensity of the emergent light of the light source; the processing module is respectively connected with the first light intensity sensor and the second light intensity sensor and used for receiving and processing the first light intensity and/or the second light intensity and sending the processed first light intensity and/or second light intensity to the control terminal of the projector device, so that light intensity detection under the common control of the light engine and the light source can be realized.
Description
Technical Field
The invention relates to the technical field of radio frequency identification, in particular to a light intensity detection device and projector control equipment.
Background
Projectors may be used to display still or moving images and typically include a light engine and a light source. The light source is internally provided with a plurality of RGB (red, green and blue) three-color laser tubes, each laser tube emits color light with specific intensity based on preset color proportion, the RGB three-color laser is combined by the optical element group in the light source, then a white light beam formed by combining the light is emitted to the light engine, and the light engine utilizes the received light beam as the light source, so that specific images are generated.
When a projector is used for projection, the brightness of the projection content needs to be adjusted, generally, the light intensity of the light emitted from the light engine is detected, and then the light engine is controlled, however, only the light engine is controlled to adjust the light intensity range, so it is thought that the light emitted from the light engine and the light source can be adjusted at the same time to achieve the target light intensity. The existing light intensity detection device can only realize the light intensity detection under the control of the light engine, so that a light intensity detection device under the common control of the light engine and the light source is urgently needed.
Disclosure of Invention
In view of the above, it is necessary to provide a light intensity detecting device and a projector control apparatus under the common control of the light engine and the light source.
A light intensity detection device for use in a projector device, said projector device including a light source and a light engine, comprising:
the first light intensity sensor is arranged at the emergent light of the light engine and used for collecting first light intensity of the emergent light of the light engine;
the second light intensity sensor is arranged at the position of the light source emergent light and used for collecting second light intensity of the light source emergent light;
and the processing module is respectively connected with the first light intensity sensor and the second light intensity sensor and is used for receiving and processing the first light intensity and/or the second light intensity and sending the processed first light intensity and/or the processed second light intensity to the control terminal of the projector device.
In one embodiment, the apparatus further comprises:
the communication module is respectively connected with the first light intensity sensor, the second light intensity sensor and the processing module and is used for respectively sending a time sequence instruction to the first light intensity sensor and the second light intensity sensor so as to instruct the first light intensity sensor to collect the first light intensity and/or instruct the second light intensity sensor to collect the second light intensity;
the communication module is further configured to transmit the first light intensity and/or the second light intensity to the processing module.
In one embodiment, the communication module is connected to the first optical intensity sensor and the second optical intensity sensor respectively by using a two-wire bus, where the two-wire bus includes a data line and a clock line, the data line is used for receiving the first optical intensity or the second optical intensity, and the clock line is used for sending the timing command to the first optical intensity sensor and the second optical intensity sensor.
In one embodiment, the apparatus further comprises:
and the current limiting module is respectively connected with the first light intensity sensor, the second light intensity sensor and the communication module and is used for limiting the output current of the first light intensity sensor or the second light intensity sensor.
In one embodiment, the device further comprises a first socket and a second socket, the first socket and the second socket are respectively connected with the processing module, the first light intensity sensor is plugged with the first socket, and the second light intensity sensor is plugged with the second socket.
In one embodiment, the processing module comprises:
the first processor is connected with the first light intensity sensor, is used for receiving and processing the first light intensity and sends the first light intensity to the control terminal;
and the second processor is connected with the second light intensity sensor, is used for receiving and processing the second light intensity and sends the second light intensity to the control terminal.
In one embodiment, the apparatus further comprises:
and the clock signal generating module is connected with the processing module and is used for providing a clock signal for the processing module.
In one embodiment, the apparatus further comprises:
and the power module is used for providing electric energy for the light intensity detection device.
In one embodiment, the apparatus further comprises:
and the debugging module is connected with the processing module and is used for carrying out function debugging on the processing module.
A projector control apparatus for use in a projector device, comprising:
a control terminal; and
the light intensity detecting device according to any one of the above.
The light intensity detection device is applied to a projector device, the projector device comprises a light source and a light engine, the light intensity detection device comprises a first light intensity sensor, a second light intensity sensor and a processing module, and the first light intensity sensor is arranged at the emergent light of the light engine and used for collecting the first light intensity of the emergent light of the light engine; the second light intensity sensor is arranged at the emergent light of the light source and used for collecting second light intensity of the emergent light of the light source; the processing module is respectively connected with the first light intensity sensor and the second light intensity sensor and used for receiving and processing the first light intensity and/or the second light intensity and sending the processed first light intensity and/or second light intensity to the control terminal of the projector device, so that light intensity detection under the common control of the light engine and the light source can be realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of an embodiment of a light intensity detecting device;
FIG. 2 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 3 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 4 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 5 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 6 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 7 is a block diagram of a light intensity detecting device according to another embodiment;
FIG. 8 is a block diagram of a light intensity detecting device according to another embodiment.
Element number description:
a first light intensity sensor: 101, a first electrode and a second electrode; a second light intensity sensor: 102, and (b); a processing module: 103; a communication module: 104; a current limiting module: 105; a first socket: 106; a second socket: 107; a first processor: 1031; a second processor: 1032; a clock signal generation module: 108; a debugging module: 109
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first light intensity may be referred to as a second light intensity, and similarly, a second light intensity may be referred to as a first light intensity, without departing from the scope of the present application. The first light intensity and the second light intensity are both light intensities, but they are not the same light intensity.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
Fig. 1 is a block diagram of a light intensity detecting device according to an embodiment, as shown in fig. 1, the light intensity detecting device is applied to a projector device, the projector device includes a light source and a light engine, the light intensity detecting device includes a first light intensity sensor 101, a second light intensity sensor 102 and a processing module 103, the first light intensity sensor 101 is disposed at an exit light of the light engine and is used for collecting a first light intensity of an exit light of the light engine; the second light intensity sensor 102 is arranged at the position of the light source emergent light and is used for collecting second light intensity of the light source emergent light; the processing module 103 is connected to the first light intensity sensor 101 and the second light intensity sensor 102, respectively, and is configured to receive and process the first light intensity and/or the second light intensity, and send the processed first light intensity and/or the processed second light intensity to a control terminal of the projector apparatus.
It can be understood that, with the light intensity detecting device of the embodiment, during the process of adjusting the outgoing light of the projector device, if only the light engine needs to be controlled to adjust the outgoing light of the light engine, the processing module 103 can receive and process the first light intensity and further feed the first light intensity back to the control terminal of the projector device; if only the light source needs to be controlled to adjust the light emitted from the light engine, the processing module 103 can receive and process the second light intensity and further feed the second light intensity back to the control terminal of the projector device; if the light engine and the light source need to be controlled together, the processing module 103 can receive and process the first light intensity and the second light intensity and further feed back the first light intensity and the second light intensity to the control terminal of the projector apparatus, so that the light intensity detection apparatus of this embodiment can simultaneously achieve the light intensity detection under the control of the light engine, the light intensity detection under the control of the light source, and the light intensity detection under the control of the light engine and the light source together.
Specifically, after receiving the first light intensity and/or the second light intensity, the processing module 103 may perform data processing such as filtering and data analysis on the first light intensity and/or the second light intensity to obtain more accurate light intensity data, and analyze the data into a signal format that can be directly recognized by the control terminal.
The light intensity detection device provided by the embodiment of the invention is applied to a projector device, the projector device comprises a light source and a light engine, the light intensity detection device comprises a first light intensity sensor 101, a second light intensity sensor 102 and a processing module 103, and the first light intensity sensor 101 is arranged at the position of emergent light of the light engine and is used for collecting first light intensity of the emergent light of the light engine; the second light intensity sensor 102 is arranged at the position of the light source emergent light and is used for collecting second light intensity of the light source emergent light; the processing module 103 is respectively connected with the first light intensity sensor 101 and the second light intensity sensor 102, and is configured to receive and process the first light intensity and/or the second light intensity, and send the processed first light intensity and/or the processed second light intensity to the control terminal of the projector device, so that the light intensity detection under the common control of the light engine and the light source can be realized, and the light intensity detection under the individual control of the light engine or the light source can also be realized, thereby realizing the diversification of the light intensity detection.
In one embodiment, the apparatus further comprises a communication module 104, as shown in fig. 2, the communication module 104 is connected to the first light intensity sensor 101, the second light intensity sensor 102 and the processing module 103, respectively, and is configured to send a timing instruction to the first light intensity sensor 101 and the second light intensity sensor 102, respectively, so as to instruct the first light intensity sensor 101 to collect the first light intensity or instruct the second light intensity sensor 102 to collect the second light intensity; the communication module 104 is further configured to transmit the first light intensity and/or the second light intensity to the processing module 103.
It is understood that the communication module 104 may instruct the first light intensity sensor 101 to collect the first light intensity and/or instruct the second light intensity sensor 102 to collect the second light intensity by sending timing instructions. Specifically, the communication module 104 may send a timing instruction to the first light intensity sensor 101 and the second light intensity sensor 102 at the same time, where the first light intensity sensor 101 and the second light intensity sensor 102 respectively respond to different instructions, and when only the light engine needs to be controlled to adjust the emergent light of the light engine, the communication module 104 sends a timing instruction that only can drive the first light intensity sensor 101, so as to obtain the first light intensity and transmit the first light intensity to the processing module 103; when only the light source needs to be controlled to adjust the emergent light of the light engine, the communication module 104 sends a timing instruction which can only drive the second light intensity sensor 102, so as to obtain the second light intensity and transmit the second light intensity to the processing module 103; when the light engine and the light source need to be controlled together, the communication module 104 can send a specific timing command, and the signal of the timing command in the first time interval can drive the first light intensity sensor 101, and the signal in the second time interval can drive the second light intensity sensor 102, so as to obtain the first light intensity and the second light intensity in sequence and transmit them to the processing module 103. The communication module 104 is simple in logic implementation and can obtain required light intensity data by simultaneously sending a timing command to the first light intensity sensor 101 and the second light intensity sensor 102 and then obtaining the first light intensity and/or the second light intensity.
In one embodiment, the timing command may be generated by the communication module 104 according to a detection command sent by the control terminal. In one embodiment, the control terminal may send the detection instruction to the processing module 103, and the driving signal is obtained after being processed by the processing module 103 and further sent to the communication module 104 to generate the timing instruction.
In one embodiment, the communication module 104 is connected to the first light intensity sensor 101 and the second light intensity sensor 102 by a two-wire bus, wherein the two-wire bus includes a data line for receiving the first light intensity or the second light intensity and a clock line for sending timing instructions to the first light intensity sensor 101 and the second light intensity sensor 102.
It can be understood that, on one hand, one end of the clock line is connected with the output end of the communication module 104, and the other two ends are respectively connected with the first light intensity sensor 101 and the second light intensity sensor 102; on the other hand, one end of the data line is connected with the input end of the communication module 104, and the other two ends of the data line are respectively connected with the first light intensity sensor 101 and the second light intensity sensor 102, so that the first light intensity sensor 101 and the second light intensity sensor 102 share the same clock line and the same data line, and finally, the collection and the transmission of the first light intensity and/or the second light intensity are realized, and the circuit is simple.
In one embodiment, the light intensity detecting apparatus further includes a current limiting module 105, as shown in fig. 3, the current limiting module 105 is connected to the first light intensity sensor 101, the second light intensity sensor 102 and the communication module 104, respectively, for limiting the output current of the first light intensity sensor 101 or the second light intensity sensor 102.
It can be understood that, in order to avoid the abnormal output of the first light intensity sensor 101 and the second light intensity sensor 102, and thus impact the rear electronic device, the current limiting module 105 may be provided to limit the current of the first light intensity sensor 101 and the second light intensity sensor 102, so as to protect the circuit, and in addition, the current limiting module 105 may also function as a filter, so as to reduce the signal noise.
In one embodiment, the light intensity detection device further comprises a first socket 106 and a second socket 107, as shown in fig. 4, the first socket 106 and the second socket 107 are respectively connected with the processing module 103, the first light intensity sensor 101 is plugged with the first socket 106, and the second light intensity sensor 102 is plugged with the second socket 107.
It will be appreciated that maintenance and replacement of the first light intensity sensor 101 and the second light intensity sensor 102 is facilitated by providing the first socket 106 and the second socket 107 and then plugging the first light intensity sensor 101 directly into the first socket 106 and the second light intensity sensor 102 directly into the second socket 107, thereby interfacing with the processing module 103.
The light intensity detecting device of the embodiment of the present invention may further include a communication module 104 of the embodiment of fig. 2, wherein the first socket 106 is connected to the first light intensity sensor 101 and the communication module 104, respectively, and the second socket 107 is connected to the second light intensity sensor 102 and the communication module 104, respectively.
The light intensity detecting apparatus according to the embodiment of the present invention may further include a current limiting module 105 according to the embodiment of fig. 3, wherein the first socket 106 is connected to the first light intensity sensor 101 and the current limiting module 105, and the second socket 107 is connected to the second light intensity sensor 102 and the current limiting module 105.
In one embodiment, the processing module 103 may comprise a first processor 1031 and a second processor 1032, as shown in fig. 5, wherein the first processor 1031 is connected with the first light intensity sensor 101, and is used for receiving and processing the first light intensity and sending the first light intensity to the control terminal. The second processor 1032 is connected to the second light intensity sensor 102, and is configured to receive and process the second light intensity, and send it to the control terminal.
It is understood that by providing one processor for each of the first light intensity sensor 101 and the second light intensity sensor 102, the processing speed of the first light intensity and the second light intensity can be increased and the workload of the processors can be reduced.
The light intensity detecting apparatus according to the embodiment of the present invention may further include a communication module 104 according to the embodiment of fig. 2, where the communication module 104 is connected between the two light intensity sensors and the two processors, and is configured to send the first light intensity collected by the first light intensity sensor 101 to the first processor 1031, and send the second light intensity collected by the second light intensity sensor 102 to the second processor 1032. In one embodiment, the communication module 104 may determine whether the first light intensity or the second light intensity is received according to the timing instruction, and then transmit the first light intensity or the second light intensity to the first processor 1031 or the second processor 1032 correspondingly.
The light intensity detecting device according to the embodiment of the present invention may further include a current limiting module 105 according to the embodiment of fig. 3, where the current limiting module 105 is connected to the first light intensity sensor 101, the second light intensity sensor 102, and the communication module 104, respectively.
The light intensity detecting device of the embodiment of the invention may further include the first socket 106 and the second socket 107 in the embodiment of fig. 4, and the specific connection relationship and function thereof may refer to the embodiment of fig. 4, which is not repeated herein.
In one embodiment, the light intensity detecting apparatus further comprises a clock signal generating module 108, as shown in fig. 6, the clock signal generating module 108 is connected to the processing module 103 for providing a clock signal to the processing module 103.
The light intensity detecting device of the embodiment of the present invention may further include the communication module 104 of the embodiment of fig. 2, and the specific connection relationship and function thereof may refer to the embodiment of fig. 2, which is not described herein again.
The light intensity detecting device of the embodiment of the present invention may further include the current limiting module 105 of the embodiment of fig. 3, and the specific connection relationship and function thereof may refer to the embodiment of fig. 3, which is not described herein again.
The light intensity detecting device of the embodiment of the invention may further include the first socket 106 and the second socket 107 of the embodiment of fig. 4, and the specific connection relationship and function thereof may refer to the embodiment of fig. 4, which is not described herein again.
The processing module 103 according to an embodiment of the present invention may include the first processor 1031 and the second processor 1032 according to the embodiment of fig. 5, and the clock signal generating module 108 is connected to the first processor 1031 and the second processor 1032 respectively, and is configured to provide clock signals to the first processor 1031 and the second processor 1032 respectively. In one embodiment, the clock signal generation module 108 may include an external clock unit and an internal clock unit that provide the external clock signal and the internal clock signal, respectively, to the processing module 103. The clock signal generating module 108 may include a crystal oscillator circuit.
In one embodiment, the light intensity detection device further comprises a power module (not shown) for supplying power to the light intensity detection device.
Specifically, the light source module can provide electric energy for all the electric appliances in the light intensity detection device.
In one embodiment, the light intensity detecting apparatus further includes a debugging module 109, as shown in fig. 7, the debugging module 109 is connected to the processing module 103 for performing function debugging on the processing module 103.
The light intensity detecting device of the embodiment of the present invention further includes the communication module 104 of the embodiment of fig. 2, and the specific connection relationship and function thereof can refer to the embodiment of fig. 2, which is not repeated herein.
The light intensity detecting device of the embodiment of the present invention may further include the current limiting module 105 of the embodiment of fig. 3, and the specific connection relationship and function thereof may refer to the embodiment of fig. 3, which is not described herein again.
The light intensity detecting device of the embodiment of the invention may further include the first socket 106 and the second socket 107 of the embodiment of fig. 4, and the specific connection relationship and function thereof may refer to the embodiment of fig. 4, which is not described herein again.
The processing module 103 according to an embodiment of the present invention may include the first processor 1031 and the second processor 1032 according to the embodiment of fig. 5, and the debugging module 109 is connected to the first processor 1031 and the second processor 1032, respectively, and is configured to perform function debugging on the first processor 1031 and the second processor 1032, respectively.
The light intensity detecting device according to the embodiment of the present invention may further include the clock signal generating module 108 in the embodiment of fig. 6, and the specific connection relationship and function thereof may refer to the embodiment of fig. 6, which is not repeated herein.
As shown in fig. 8, the light intensity detecting apparatus further includes a first light intensity sensor 101, a second light intensity sensor 102, a first socket 106, a second socket 107, a current limiting module 105, a communication module 104, a first processor 1031, a second processor 1032, a clock signal generating module 108, and a debugging module 109. The first light intensity sensor 101 is plugged with the first socket 106 and further connected with the current limiting module 105, the second light intensity sensor 102 is plugged with the second socket 107 and further connected with the current limiting module 105, the current limiting module 105 is connected with the communication module 104 and further connected with the first processor 1031 and the second processor 1032 respectively, the clock signal generating module 108 is connected with the first processor 1031 and the second processor 1032 respectively, and the debugging module 109 is also connected with the first processor 1031 and the second processor 1032 respectively. The specific functions of each module can be referred to the embodiments of the light intensity detection devices, and are not described herein again.
The embodiment of the invention also provides projector control equipment which is applied to the projector device and comprises a control terminal of the projector device and the light intensity detection device of any one of the embodiments.
The embodiment of the invention also provides a projection system which comprises the projector device and the projector control equipment of the embodiment.
The term "first light intensity and/or second light intensity" in any of the above embodiments is to be understood as meaning, in this embodiment, either the first light intensity or the second light intensity or various possible combinations of the first light intensity and the second light intensity.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A light intensity detection device for use in a projector device, said projector device including a light source and a light engine, comprising:
the first light intensity sensor is arranged at the emergent light of the light engine and used for collecting first light intensity of the emergent light of the light engine;
the second light intensity sensor is arranged at the position of the light source emergent light and used for collecting second light intensity of the light source emergent light;
and the processing module is respectively connected with the first light intensity sensor and the second light intensity sensor and is used for receiving and processing the first light intensity and/or the second light intensity and sending the processed first light intensity and/or the processed second light intensity to a control terminal of the projector device.
2. The light intensity detecting device according to claim 1, characterized in that the device further comprises:
the communication module is respectively connected with the first light intensity sensor, the second light intensity sensor and the processing module and is used for respectively sending a time sequence instruction to the first light intensity sensor and the second light intensity sensor so as to indicate the first light intensity sensor to collect the first light intensity and/or indicate the second light intensity sensor to collect the second light intensity;
the communication module is further configured to transmit the first light intensity and/or the second light intensity to the processing module.
3. The light intensity detecting device according to claim 2, wherein the communication module is connected to the first light intensity sensor and the second light intensity sensor by a two-wire bus, wherein the two-wire bus comprises a data line and a clock line, the data line is used for receiving the first light intensity or the second light intensity, and the clock line is used for sending the timing command to the first light intensity sensor and the second light intensity sensor.
4. The light intensity detecting device according to claim 2, further comprising:
and the current limiting module is respectively connected with the first light intensity sensor, the second light intensity sensor and the communication module and is used for limiting the output current of the first light intensity sensor or the second light intensity sensor.
5. The light intensity detection device of claim 1, further comprising a first socket and a second socket, wherein the first socket and the second socket are respectively connected to the processing module, the first light intensity sensor is plugged into the first socket, and the second light intensity sensor is plugged into the second socket.
6. The light intensity detecting device according to claim 1, wherein the processing module comprises:
the first processor is connected with the first light intensity sensor, is used for receiving and processing the first light intensity and sends the first light intensity to the control terminal;
and the second processor is connected with the second light intensity sensor, is used for receiving and processing the second light intensity and sends the second light intensity to the control terminal.
7. The light intensity detecting device according to claim 1, characterized in that the device further comprises:
and the clock signal generating module is connected with the processing module and used for providing a clock signal for the processing module.
8. The light intensity detecting device according to claim 1, characterized in that the device further comprises:
and the power supply module is used for providing electric energy for the light intensity detection device.
9. The light intensity detecting device according to claim 1, characterized in that the device further comprises:
and the debugging module is connected with the processing module and is used for carrying out function debugging on the processing module.
10. A projector control apparatus, for use in a projector device, comprising:
a control terminal; and
the light intensity detecting device according to any one of claims 1 to 9.
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| CN202110923515.9A CN115704985A (en) | 2021-08-12 | 2021-08-12 | Light intensity detection device and projector control apparatus |
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| CN202110923515.9A CN115704985A (en) | 2021-08-12 | 2021-08-12 | Light intensity detection device and projector control apparatus |
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| CN115704985A true CN115704985A (en) | 2023-02-17 |
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| CN202110923515.9A Pending CN115704985A (en) | 2021-08-12 | 2021-08-12 | Light intensity detection device and projector control apparatus |
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