WO2018090765A1 - 光源装置、光源装置启动方法及相关投影设备 - Google Patents
光源装置、光源装置启动方法及相关投影设备 Download PDFInfo
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- WO2018090765A1 WO2018090765A1 PCT/CN2017/105808 CN2017105808W WO2018090765A1 WO 2018090765 A1 WO2018090765 A1 WO 2018090765A1 CN 2017105808 W CN2017105808 W CN 2017105808W WO 2018090765 A1 WO2018090765 A1 WO 2018090765A1
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- Prior art keywords
- light source
- light
- motor
- solid
- intensity
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Definitions
- the present invention relates to the field of projection technologies, and in particular, to a light source device, a light source device starting method, and an associated projection device.
- the fluorescent material is disposed on the fluorescent color wheel, and the fluorescent color wheel is driven by the motor.
- the motor needs to be normally started and subjected to subsequent operations if its ambient temperature is not less than its starting temperature.
- the motor ⁇ is started below the starting temperature, the rotational speed of the motor is unstable, and the normal operating speed is not achieved.
- a light source device comprising:
- a fluorescent color wheel located on a transmission path of the excitation light emitted by the solid-state light source, the fluorescent color wheel comprising a fluorescent light-emitting area, wherein the fluorescent light-emitting area is configured to absorb the excitation light and emit a wavelength longer than the excitation Light receiving laser light; a motor for driving the fluorescent color wheel to rotate;
- a control unit in communication connection with the light source driving module and the motor, for controlling the light source driving module and controlling the motor;
- the solid-state light source when the light source device is in a startup phase, the solid-state light source emits excitation light with a preheating intensity, and the fluorescent color wheel generates heat under the excitation light to preheat the motor.
- the light intensity of the solid-state light source that emits the excitation light is a working light intensity, and the preheating light intensity is less than the working light intensity.
- the light source device further includes a rotation speed monitoring device communicably connected to the control unit, wherein the rotation speed monitoring device is configured to monitor a rotation speed of the fluorescent color wheel and feed the rotation speed to the control unit.
- the control unit controls a light intensity of the solid state light source such that a light intensity of the solid state light source is positively correlated with a rotational speed of the fluorescent color wheel or a light intensity of the solid state light source is associated with the fluorescent color wheel The increase in the rotational speed increases stepwise.
- control unit presets the working speed, the rotation speed of the fluorescent color wheel reaches the working speed ⁇ , and the control unit controls the light intensity of the solid state light source to be the working light intensity.
- the solid state light source comprises a plurality of laser diodes, and the control unit controls the number of turns of the laser diode to change the intensity of the excitation light emitted by the solid state light source.
- the light source device further includes a temperature detecting unit connected to the control unit, the temperature detecting unit is configured to detect an ambient temperature of the motor and feed back the ambient temperature to the control unit;
- the solid state light source when the ambient temperature is lower than the starting temperature of the motor, the solid state light source emits excitation light with a preheating light intensity
- the solid state light source emits excitation light having a working light intensity.
- control unit presets an initial preheating light intensity, and after the light source device is activated, the control unit controls the preheating light intensity of the solid state light source to be an initial preheating light intensity;
- the initial preheating light intensity is a fixed single value, or the initial preheating light intensity is at least two different values associated with the ambient temperature.
- the solid-state light source emits an excitation pupil with a preheating light intensity
- the fluorescent color wheel can at least Subject to 2 to 5 minutes of illumination at rest.
- the present invention also provides a projection apparatus including a light modulation device and a light source device as described above, the light modulation device, configured to receive an image signal, perform image modulation operation according to the image signal, Light emitted from the light source device is projected onto the light modulation device, and image light corresponding to the image signal emitted from the light modulation device is formed by the image modulation operation.
- the present invention further provides a method for starting a light source device, the light source device comprising a solid state light source, a fluorescent color wheel, a motor and a control unit, the solid state light source for emitting excitation light, and the light source driving module
- the fluorescent color wheel is located on a transmission path of the excitation light emitted by the solid-state light source, the fluorescent color wheel includes a fluorescent light-emitting area, and the fluorescent light-emitting area is configured to absorb the excitation light and a laser that emits a wavelength longer than the excitation light;
- the motor is configured to drive the fluorescent color wheel to rotate;
- the control unit is communicatively coupled to the light source driving module and the motor for controlling the light source
- the driving module and the control of the motor, the starting method of the light source device comprises the following steps:
- preheating starting a solid state light source of the light source device and causing the solid state light source to emit excitation light having a preheating light intensity, and a fluorescent light emitting region of the fluorescent color wheel of the light source device is generated under the excitation light irradiation
- the heat is further preheated to the motor of the light source device, and is disposed in a normal working phase of the light source device, wherein the intensity of the excitation light emitted by the solid state light source is the working light intensity, and the preheating light intensity is less than the working light.
- the starting method of the light source device further includes detecting an ambient temperature of the motor, and if the ambient temperature is less than a starting temperature of the motor, performing the preheating Step
- the starter motor is first executed, and then the rotational speed of the fluorescent color wheel is monitored.
- the solid state light source is turned on, and the preheating light is output. Strong excitation light
- the solid state light source comprises a plurality of excitation light diodes, and the light intensity of the solid state light source is adjusted by controlling the number of excitations of the excitation light diodes.
- the present invention provides a light source device, a light source device starting method, and a projection device, wherein the fluorescent light is emitted by the solid-state light source at a preheating light intensity lower than its working light intensity, so that the fluorescent light is emitted.
- the illuminating region generates heat under the excitation light to preheat the motor, and preheats the structure of the light source device itself, thereby avoiding additional design complexity and cost increase caused by the preheating device.
- FIG. 1 is a schematic diagram of functional modules of a projection device according to a preferred embodiment of the present invention.
- FIG. 2 is a diagram showing a relationship between a driving current and a fluorescent color wheel rotation speed of the solid-state light source of the present invention
- FIG. 3 is a flow chart of a method for starting a light source device provided by the present invention.
- FIG. 4 is a flow chart of a method for starting another light source device provided by the present invention.
- FIG. 5 is a flow chart of a method for starting a further light source device according to the present invention.
- Speed monitoring device 70 [0048] The present invention will be further described in conjunction with the above drawings in the following detailed description.
- one component when one component is considered to be “connected” to another component, it may be directly connected to another component, or may be indirectly connected to another component through a centered component.
- the ambient temperature of the motor includes the working environment temperature at which the motor is located or the temperature of the motor itself.
- the temperature of the working environment in which the motor is located and the temperature of the motor itself are referred to as the ambient temperature of the motor.
- the ambient temperature of the motor either one of the two may be selected.
- the ambient temperature of the motor as the technical solution.
- the lowest temperature at which the motor can start normally is the starting temperature of the motor, or the lower limit of the operating temperature range of the motor is the starting temperature of the motor.
- the motor cannot be normally started, the fluorescent color wheel cannot be activated or fails to reach a normal operating speed, and the projection device cannot be Start work.
- the solid-state light source is activated without waiting for the fluorescent color wheel to reach a normal working speed, and the fluorescent light-emitting area of the fluorescent color wheel is irradiated by the excitation light emitted by the solid-state light source to perform wavelength conversion to generate a laser-receiving process. Heat is generated to preheat the motor to raise the ambient temperature at which the motor is placed to the starting temperature.
- an embodiment of the present invention provides a projection apparatus 100 including a light source device 101 and a light modulation device 103 .
- the light source device 101 is capable of emitting light.
- the light modulating device 103 is configured to receive an image signal, and perform an image modulation operation according to the image signal.
- Light source emitted by the light source device 101 The light modulating device 103 is incident on the image light corresponding to the image signal emitted from the light modulating device 103 by the image modulating operation.
- the projection device 100 further includes other necessary or unnecessary structures, such as a projection lens, and the like, and details are not described herein.
- the light source device 101 includes a solid-state light source 10, a light source driving module 12, an optical unit 20, a fluorescent color wheel 30, a motor 40, a control unit 50, a temperature detecting unit 60, and a rotational speed monitoring device 70.
- the solid state light source 10 is used to emit excitation light.
- the fluorescent color wheel 30 is located on a transmission path of the excitation light emitted from the solid-state light source 10.
- the solid state light source 10 can be a blue laser source (such as a blue laser or a blue laser diode). In a modified embodiment, the solid-state light source 10 may also be a light source of other colors, and is not limited to a blue light source.
- the solid-state light source 10 may be an ultraviolet laser source (such as an ultraviolet laser or an ultraviolet laser diode). ), thereby emitting ultraviolet excitation light.
- the solid state light source 10 is preferably a semiconductor solid state light source for providing high brightness excitation light. In this embodiment, the solid state light source 10 includes a plurality of laser diodes.
- the light source driving module 12 is connected to the solid state light source 10 for driving the solid state light source 10.
- the solid-state light source 10 is irradiated on the surface of the fluorescent color wheel 30 via the optical unit 20.
- the optical unit 20 includes an optical element such as a lens.
- the fluorescent color wheel 30 is substantially disk-shaped, and includes a fluorescent light emitting region (not shown) disposed along a circumferential direction thereof.
- the fluorescent light-emitting region includes red and green regions to absorb the excitation light and emit a laser light having a wavelength longer than the excitation light under illumination of the excitation light.
- the fluorescent light-emitting region may further include a blue region (e.g., in the case where the excitation light is ultraviolet light) and a mixed color region (e.g., a yellow region), which will not be described herein.
- a blue region e.g., in the case where the excitation light is ultraviolet light
- a mixed color region e.g., a yellow region
- the control unit 50 activates the solid state light source 10 to preheat the motor 40, and the control unit 50 turns on the motor 40.
- the stage in which the motor 40 is warmed up to the normal operating state is called a warm-up phase.
- the solid state light source 10 emits excitation light having a preheating light intensity
- the fluorescent color wheel 30 generates heat under the excitation light of the preheating light intensity to preheat the motor 40, so that the motor 40 is placed.
- the ambient temperature rises to the starting temperature of the motor, causing the rotational speed of the motor 40 and the fluorescent color wheel 30 to rise from 0 to the operating speed.
- the phase in which the rotational speed of the fluorescent color wheel 30 is increased from 0 to the first predetermined rotational speed rl is referred to as a first phase, that is, a phase in which the rotational speed is greater than or equal to 0 and the rotational speed is less than the first predetermined rotational speed rl.
- the control unit 50 presets the initial preheating light intensity, and after the light source device 101 is activated, the control unit 50 controls the preheating light intensity of the solid state light source 10 to be the initial preheating light intensity.
- the intensity of the exiting excitation light of the solid state light source 10 is the same as the initial preheating intensity.
- the initial preheating light intensity is a fixed single value, that is, the value of the initial preheating light intensity is preset and fixed regardless of the ambient temperature.
- the initial preheating light intensity may also be at least two different values related to the ambient temperature, that is, the preheating light intensity of the excitation light emitted by the solid state light source is different at different ambient temperatures.
- the fluorescent color wheel 30 is normally operated at the second preset rotation speed r2, so that the projection apparatus 100 normally projects a display image, and the second preset rotation speed r2 and the The working speed is the same, the intensity of the excitation light emitted by the solid-state light source 10 is the working light intensity, and the driving current for driving the solid-state light source 10 is the operating current of the solid-state light source 10, and the operating current is Ie.
- the preheating light intensity is less than the working light intensity of the solid state light source 10.
- the light source device 101 is activated, and the control unit 50 controls the temperature detecting unit 60 to be activated.
- the temperature detecting unit 60 detects the ambient temperature and feeds back or retrieves the acquired ambient temperature to the control unit 50 to cause the control unit 50 to acquire a change in the ambient temperature.
- the solid-state light source emits the excitation light with the preheating light intensity; when the ambient temperature is not lower than the starting temperature of the motor, the solid-state light source emits the excitation light of the working light intensity.
- the ambient temperature at which the motor 40 is initially detected by the temperature detecting unit 60 is the initial ambient temperature.
- the control unit 50 determines that the initial ambient temperature is lower than the starting temperature of the motor 40, the control unit 50 controls the light source driving module 12 to activate the solid state light source 10 and the motor 40 to The heat generated by the fluorescent color wheel 30 is provided to the motor 40 The heat is preheated.
- control unit 50 controls the magnitude of the driving current that the light source driving module 12 sends to the solid-state light source 10 to change the light intensity of the solid-state light source 10.
- the driving current Im of the solid-state light source 10 during the preheating phase can prevent the fluorescent color wheel 30 from being burned by burning the fluorescent color wheel 30 for a long time.
- the value of the driving current of the solid-state light source 10 in the preheating phase is smaller than the value of the operating current Ie of the solid-state light source 10.
- the solid-state light source 10 includes a plurality of laser diodes, and the control unit 50 controls the number of turns of the plurality of laser diodes, thereby changing the excitation light emitted by the solid-state light source 10 Light intensity.
- the motor 40 drives the fluorescent color wheel 30 to rotate.
- the control unit 50 activates the rotation speed monitoring device
- control unit 50 determines that the rotation speed is equal to the second preset rotation speed r2, the control unit 50 controls the value of the driving current Im sent by the light source driving module 12 to the solid-state light source 10. Increasing to the value of Ie, that is, the driving current delivered to the solid-state light source 10 is the operating current Ie, and the fluorescent color wheel 30 is normally operated at the second predetermined rotational speed r2.
- the plurality of rotational speed steps includes a first rotational speed step, a second rotational speed step, and a third rotational speed step, wherein the second rotational speed step is smaller than the first rotational speed step and greater than the third rotational speed step, when the rotational speed reaches the first a speed step ⁇ , the control unit 50 controls to increase the light intensity value of the solid state light source 10 to the first light intensity; when the rotation speed reaches the second speed step ⁇ , the control unit 50 controls to increase the light intensity value of the solid state light source 10 To the second light intensity; when the rotation speed reaches the third rotation speed step ⁇ , the control unit 50 controls to increase the light intensity value of the solid state light source 10 to the third light intensity, the second light intensity is less than the first light intensity and Greater than the third light intensity.
- the light source device 101 may omit the temperature detecting unit 60, For example, a light source device designed for a cold and cold environment.
- the light source device includes two startup modes, one is a startup mode including a warm-up phase, and the other mode is a startup mode that does not include a warm-up phase, and the operator can manually Select the startup mode.
- the light source device omits the temperature detecting unit, and preheats the motor by presetting a fixed preheating enthalpy interval, the technical solution can avoid the ambient temperature being too low. ⁇ , forced to start the damage caused by the motor, and reduce the complexity of the control program, is a "fool" low-cost technical solution.
- a plurality of preheating turns may be preset in the control unit 50, and the plurality of preheating turns correspond to different initial ambient temperatures, and the motor 40 passes through After preheating of the corresponding preheating inter-turn section, the motor 40 is started.
- This technical solution can avoid the damage of the motor caused by the forced start motor or avoid the damage of the fluorescent wheel caused by the ambient temperature approaching the motor starting temperature and the preheating time.
- the light source device 101 is not limited to be applied to the projection device 100, and it can also be applied to other illumination or display systems.
- the solid-state light source 10 includes a plurality of laser diodes, and the control unit 50 controls the number of turns of the laser diode to change the light intensity of the excitation light emitted by the solid-state light source 10.
- the solid-state light source 10 includes a plurality of laser diodes, and the control unit 50 prestores a plurality of ambient temperatures, and the plurality of ambient temperatures respectively correspond to different numbers of the plurality of laser diodes. / or the driving current supplied by the light source driving module 12 to the solid-state light source 10; the control unit 50 implements the detected ambient temperature according to the temperature detecting unit 60. Controlling the number of turns of the plurality of laser diodes corresponding to the ambient temperature and/or the driving current supplied by the light source driving module 12 to the light source to adjust the preheating of the excitation light emitted by the solid state light source 10 The light intensity allows the preheating light intensity to be adjusted as the ambient temperature changes. Since the actual amount of the light source unit and/or the light source driving current value is adjusted according to the detected ambient temperature, the control of the preheating light intensity is more flexible and precise.
- the control unit 50 controls the plurality of environments corresponding to the ambient temperature according to the ambient temperature detected by the temperature detecting unit 60 at the start of the projection device 100.
- the preheating intensity remains unchanged during the preheating phase, and the intensity of the excitation light emitted by the solid state light source becomes the working light intensity until the motor enters the normal working state.
- This technical solution avoids the complexity of the program, is simpler in design, and avoids the problem of inaccurate control caused by possible signal delays such as temperature/definite detection, speed/definite detection.
- the motor 40 can be started first, and the rotation speed monitoring device 70 monitors the rotation speed of the fluorescent color wheel 30.
- the control unit 50 Controlling the solid state light source 10 to output light having a preheating intensity to provide thermal energy to preheat the motor 40.
- the solid-state light source 10, the motor 40, and the rotation speed monitoring device 70 can be simultaneously turned on, and the solid-state light source 10 emits the excitation light of the preheating light intensity, and the motor 40 Although the fluorescent color wheel 30 cannot be driven to reach the operating speed, the motor 40 drives the fluorescent color wheel 30 to reach the operating speed when the ambient temperature of the motor 40 is raised to the starting temperature.
- the solid state light source 10 emits excitation light having a working light intensity.
- the solid-state light source 10 can be pre-heated, the motor 40 and the speed monitoring The measuring device 70 is turned on.
- the rotation speed monitoring device 70 can be used to monitor the rotation speed of the motor 40, and the control unit 50 corresponds to preset a first preset rotation speed and a second preset rotation speed of the motor 40.
- the present invention also provides a method for starting a light source device. Referring to FIG. 3, the method includes the following steps:
- Step 301 Detect an ambient temperature of a motor of the light source device.
- Step 304 Monitor the rotational speed of the fluorescent color wheel.
- Step 305 When the rotation speed of the fluorescent color wheel reaches the first preset rotation speed ⁇ , increase the light intensity of the excitation light emitted by the solid state light source.
- a phase in which the rotation speed of the fluorescent color wheel is increased from the first predetermined rotation speed to the second preset rotation speed is a second stage, that is, the rotation speed is greater than or equal to the first preset rotation speed to the rotation speed is less than The stage of the second preset speed.
- the intensity of the excitation light emitted by the solid state light source increases.
- the stage in which the rotational speed of the fluorescent color wheel is equal to the second predetermined rotational speed is a normal working phase.
- the fluorescent color wheel In the normal working phase, the fluorescent color wheel is normally operated at an operating speed, so that the light source device periodically emits different color lights and a normal projection display image of the projection device at a normal speed, and the second preset rotation speed and the position
- the working speed is the same
- the intensity of the excitation light emitted by the solid-state light source is the working light intensity
- the current driving the solid-state light source is the operating current Ie of the solid-state light source.
- the preheating light intensity is less than the working light intensity of the solid state light source.
- the light intensity of the emitted light of the solid-state light source can be increased, that is, the solid-state light source is increased during the increase of the rotational speed of the motor and the fluorescent color wheel.
- the intensity of the outgoing light does not have to wait until the rotational speed of the fluorescent color wheel reaches a first predetermined speed.
- step 304 can be omitted.
- the method for starting the light source device includes the following steps: [0107] Step 401: The solid-state light source of the light source device is activated, and the solid-state light source emits excitation light with a preheating intensity within a predetermined preset interval, and the fluorescent light-emitting region of the fluorescent color wheel is The heat generated by the excitation light is used to preheat the motor of the light source device, and the fluorescent color wheel of the light source device is in a normal working phase, and the intensity of the excitation light emitted by the solid state light source is the working light intensity.
- the preheating light intensity is less than the working light intensity.
- Step 403 Increase the light intensity of the solid light source to emit the excitation light until the working light intensity is reached.
- the method of the light source device includes the steps of:
- Step 501 Start the motor.
- the light source device 101, the light source device starting method and the projection device 100 provided by the present invention the excitation light is emitted by the solid-state light source 10 at a preheating light intensity lower than the working light intensity thereof, so that the fluorescent color wheel 30 is
- the heat generated by the excitation light is used to preheat the thermal energy of the motor 40, which is convenient for use and improves the service life of the light source device 101. Since the additional heater is not required, the cost of the light source device and the projection device is reduced to some extent, the structure of the light source device and the projection device is simplified, and the volume of the light source device and the projection device is reduced. Further, at the same time as the start of the motor 40, the excitation light emitted from the solid-state light source 10 is prevented from burning the fluorescent color wheel 30.
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Abstract
一种光源装置(101)、光源装置(101)启动方法及相关投影设备(100),该光源装置(101)包括固态光源(10)、光源驱动模组(12)、马达(40)、荧光色轮(30)及控制单元(50)。光源装置(101)处于启动阶段时,固态光源(10)出射具预热光强的激发光,荧光色轮(30)在激发光照射下产生热量进而对马达(40)进行预热,当光源装置(101)正常工作阶段时,固态光源(10)出射激发光的光强为工作光强,预热光强小于工作光强。
Description
光源装置、 光源装置启动方法及相关投影设备 技术领域
[0001] 本发明涉及投影技术领域, 特别涉及一种光源装置、 光源装置启动方法及相关 投影设备。
背景技术
[0002] 如今, 大量投影设备采用激光激发荧光材料的方式获得高亮度的光作投影光源 。 通常的, 投影设备的光源装置内, 荧光材料设置于荧光色轮上, 并通过马达 驱动荧光色轮运动。 所述马达需在其所处的环境温度不小于其启动温度的情况 下, 才能正常启动并进行后续的操作。 在低于所述启动温度的情况下启动所述 马达吋, 所述马达的转速不稳定, 且达不到正常的工作转速。 由于投影设备设 置有色轮保护程序, 为防止荧光色轮被激光烧毁, 要求光源必须在荧光色轮达 到一定转速下启动, 因而造成所述光源装置及所述投影设备在马达达不到正常 转速的情况下不能正常启动。
技术问题
[0003] 但是, 若在投影机内部独立增加一个加热器, 对色轮进行加热以启动投影机, 则提高了成本并增加了投影机光源系统的体积和复杂度。
问题的解决方案
技术解决方案
[0004] 为解决上述问题, 有必要提供一种光源装置、 光源装置启动方法及相关投影设 备。
[0005] 一种光源装置, 其包括:
[0006] 固态光源, 用以出射激发光;
[0007] 光源驱动模组, 用于驱动所述固态光源;
[0008] 荧光色轮, 位于所述固态光源出射的激发光的传输路径上, 所述荧光色轮包括 荧光发光区域, 所述荧光发光区域用于吸收所述激发光并发射波长长于所述激 发光的受激光;
[0009] 马达, 用于驱动所述荧光色轮转动;
[0010] 控制单元, 与所述光源驱动模组及所述马达通信连接, 用于控制所述光源驱动 模组及控制所述马达的幵关;
[0011] 在所述光源装置处于启动阶段吋, 所述固态光源出射具预热光强的激发光, 所 述荧光色轮在所述激发光照射下产生热量进而对所述马达进行预热, 设在所述 光源装置正常工作阶段吋, 所述固态光源出射激发光的光强为工作光强, 所述 预热光强小于所述工作光强。
[0012] 进一步地, 所述光源装置还包括与所述控制单元通信连接的转速监测装置, 所 述转速监测装置用于监测所述荧光色轮的转速并将所述转速回馈给所述控制单 元, 所述控制单元控制所述固态光源的光强, 以使所述固态光源的光强与所述 荧光色轮的转速呈正相关关系或者使所述固态光源的光强随所述荧光色轮的转 速的增加呈阶梯式增大。
[0013] 进一步地, 所述控制单元预设工作转速, 所述荧光色轮的转速达到工作转速吋 , 所述控制单元控制所述固态光源的光强为工作光强。
[0014] 进一步地, 所述固态光源包括多个激光二极管, 所述控制单元控制所述激光二 极管的幵启数量以改变所述固态光源所出射激发光的光强。
[0015] 进一步地, 所述光源装置还包括与所述控制单元连接的温度检测单元, 所述温 度检测单元用于检测所述马达的环境温度并将所述环境温度回馈至所述控制单 元;
[0016] 当所述环境温度低于所述马达的启动温度吋, 所述固态光源出射具预热光强的 激发光;
[0017] 当所述环境温度不低于所述马达的启动温度吋, 所述固态光源出射具工作光强 的激发光。
[0018] 进一步地, 所述控制单元预设初始预热光强, 在所述光源装置启动吋, 所述控 制单元控制所述固态光源的预热光强为初始预热光强;
[0019] 所述初始预热光强为固定单一值, 或者所述初始预热光强为与所述环境温度相 关的至少两个不同值。
[0020] 进一步地, 所述固态光源出射具预热光强的激发光吋, 所述荧光色轮至少能够
在静止状态下承受 2至 5分钟的照射。
[0021] 本发明还提供了一种投影设备, 其包括光调制装置及如上所述的光源装置, 所 述光调制装置, 用于接收图像信号, 根据所述图像信号进行图像调制运作, 所 述光源装置出射的光投射至所述光调制装置上, 在所述图像调制运作的作用下 形成从所述光调制装置出射的与所述图像信号对应的图像光。
[0022] 本发明还提供了一种光源装置的启动方法, 所述光源装置包括固态光源、 荧光 色轮、 马达及控制单元, 所述固态光源用以出射激发光, 所述光源驱动模组用 于驱动所述固态光源, 所述荧光色轮, 位于所述固态光源出射的激发光的传输 路径上, 所述荧光色轮包括荧光发光区域, 所述荧光发光区域用于吸收所述激 发光并发射波长长于所述激发光的受激光; 所述马达, 用于驱动所述荧光色轮 转动; 所述控制单元, 与所述光源驱动模组及所述马达通信连接, 用于控制所 述光源驱动模组及控制所述马达的幵关, 所述光源装置的启动方法包括以下步 骤:
[0023] 预热: 启动所述光源装置的固态光源并使所述固态光源出射具预热光强的激发 光, 所述光源装置的荧光色轮的荧光发光区域在所述激发光照射下产生热量进 而对所述光源装置的马达进行预热, 设在所述光源装置正常工作阶段吋, 所述 固态光源出射激发光的光强为工作光强, 所述预热光强小于所述工作光强;
[0024] 启动所述马达, 所述马达驱动的荧光色轮转动。
[0025] 进一步地, 所述固态光源出射具预热光强的激发光持续预设吋间后, 启动所述 马达。
[0026] 进一步地, 在所述预热步骤前, 所述光源装置的启动方法还包括检测所述马达 的环境温度, 若所述环境温度小于所述马达的启动温度, 则执行所述预热步骤
[0027] 进一步地, 在启动所述马达的步骤之后, 还包括调节所述固态光源出射激发光 的光强的步骤, 以使所述固态光源的光强与所述荧光色轮的转速呈正相关关系 或者使所述固态光源的光强随所述荧光色轮的转速的增加呈阶梯式增大。
[0028] 进一步地, 先执行启动马达, 然后监测所述荧光色轮的转速, 当所述转速低于 所述荧光色轮的工作转速吋, 幵启所述固态光源, 并输出具预热光强的激发光
[0029] 进一步地, 所述固态光源包括多个激发光二极管, 通过控制所述激发光二极管 的幵启数量实现调节所述固态光源的光强。
发明的有益效果
有益效果
[0030] 与现有技术相比较, 本发明提供的光源装置、 光源装置启动方法及投影设备, 通过所述固态光源以低于其工作光强的预热光强出射激发光, 使所述荧光发光 区域在所述激发光照射下产生热量进而对所述马达进行预热, 利用光源装置自 身的结构进行预热, 避免了额外增加预热装置带来的设计复杂度与成本增加。 对附图的简要说明
附图说明
[0031] 图 1是本发明较佳实施方式提供的投影设备的功能模组示意图;
[0032] 图 2是本发明的固态光源的驱动电流 -荧光色轮转速关系图;
[0033] 图 3是本发明提供的光源装置的启动方法流程图;
[0034] 图 4是本发明提供的另一光源装置的启动方法流程图;
[0035] 图 5是本发明提供的又一光源装置的启动方法流程图。
[0036] 主要元件符号说明
[0037] 投影设备 100
[0038] 光调制装置 103
[0039] 光源装置 101
[0040] 固态光源 10
[0041] 光源驱动模组 12
[0042] 光学单元 20
[0043] 荧光色轮 30
[0044] ^达 40
[0045] 控制单元 50
[0046] 温度检测单元 60
[0047] 转速监测装置 70
[0048] 如下具体实施方式将结合上述附图进一步说明本发明。
实施该发明的最佳实施例
本发明的最佳实施方式
[0049] 下面将结合本发明实施例中的附图, 对本发明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发明一部分实施例, 而不是全部 的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳 动前提下所获得的所有其他实施例, 都属于本发明保护的范围。 在不冲突的情 况下, 下述的实施例及实施例中的特征可以相互组合。
[0050] 需要说明的是, 在本发明中, 当一个组件被认为是与另一个组件 "相连 "吋, 它 可以是与另一个组件直接相连, 也可以是通过居中组件与另一个组件间接相连
[0051] 除非另有定义, 本文所使用的所有的技术和科学术语与属于本发明的技术领域 的技术人员通常理解的含义相同。 本文中在本发明的说明书中所使用的术语只 是为了描述具体的实施例的目的, 不是旨在于限制本发明。
[0052] 在本发明中, 马达的环境温度包括马达所处的工作环境温度或马达的自身温度
(如马达壳体温度) , 为便于描述, 统一将马达所处的工作环境温度和马达的 自身温度称为马达的环境温度, 在针对本发明一个技术方案吋, 可以选择两者 中的任一种作为该技术方案的马达的环境温度。 马达能够正常启动的最低温度 为马达的启动温度, 或者马达的工作温度范围的下限值为马达的启动温度。
[0053] 在所述环境温度低于所述马达的启动温度吋, 所述马达不能被正常启动, 所述 荧光色轮不能被启动或达不到正常的工作转速, 导致所述投影设备不能被启动 工作。 在本发明的技术方案中, 固态光源不必等待荧光色轮达到正常工作转速 而被启动, 所述荧光色轮的荧光发光区域受到所述固态光源出射的激发光照射 进行波长转换生成受激光的过程中产生热量, 进而对所述马达进行预热, 以使 所述马达所处的环境温度上升至所述启动温度。
[0054] 请参阅图 1所示, 本发明实施方式提供一种投影设备 100, 其包括光源装置 101 及光调制装置 103。 所述光源装置 101能够出射光。 所述光调制装置 103用于接收 图像信号, 根据所述图像信号进行图像调制运作。 所述光源装置 101出射的光投
射至所述光调制装置 103上, 在所述图像调制运作的作用下形成从所述光调制装 置 103出射的与所述图像信号对应的图像光。 所述投影设备 100还包括其它必要 或非必要结构, 如投影镜头等, 在此不作赘述。
[0055] 所述光源装置 101包括固态光源 10、 光源驱动模组 12、 光学单元 20、 荧光色轮 3 0、 马达 40、 控制单元 50、 温度检测单元 60及转速监测装置 70。 所述固态光源 10 用以出射激发光。 所述荧光色轮 30, 位于所述固态光源 10出射的激发光的传输 路径上。
[0056] 所述固态光源 10可以为蓝色激光光源 (如蓝色激光器或蓝色激光二极管) 。 在 一种变更实施方式中, 所述固态光源 10也可以是其他颜色的光源, 并不以蓝色 光源为限, 如所述固态光源 10可以是紫外激光光源 (如紫外激光器或紫外光激 光二极管) , 从而发出紫外激发光。 进一步地, 所述固态光源 10优选为半导体 固态光源, 用以提供高亮度的激发光。 本实施方式中, 所述固态光源 10包括多 个激光二极管。
[0057] 所述光源驱动模组 12与所述固态光源 10连接, 用于驱动所述固态光源 10。
[0058] 所述固态光源 10经所述光学单元 20照射在所述荧光色轮 30的表面。 所述光学单 元 20包括透镜等光学元件。
[0059] 本实施方式中, 所述荧光色轮 30大致呈圆盘状, 其包括沿其周向设置的荧光发 光区域 (图未示) 。 所述荧光发光区域包括红、 绿区域, 以在所述激发光的照 射下, 所述荧光发光区域吸收所述激发光并发射波长长于所述激发光的受激光
。 所述荧光发光区域还可以包括蓝区域 (如激发光为紫外光的情况下) 及混合 色区域 (如黄区域) , 此处不再赘述。
[0060] 在其他实施方式中, 所述荧光色轮 30可以不限定为圆盘状, 其也可以为能够线 性运动的带状结构或能够周期性转动的筒状结构 /桶状结构, 其能够依吋序发出 不同颜色的光。
[0061] 所述马达 40用于驱动荧光色轮 30转动。 将马达 40所处工作环境的温度称为马达 的环境温度。 本实施方式中, 马达 40为油压马达, 马达 40的启动温度大于或等 于 5°C。 可以理解, 马达 40的启动温度不限于大于或等于 5°C, 马达 40的启动温度 依据马达 40的实际情况而定, 如马达标称工作温度范围的下限值。
[0062] 所述控制单元 50与所述光源驱动模组 12、 所述马达 40、 所述温度检测单元 60及 所述转速监测装置 70通信连接, 用于控制所述光源驱动模组 12的驱动功率等, 同吋用于控制所述马达 40的幵关。
[0063] 所述温度检测单元 60用于检测所述马达 40所处的环境温度并将所述环境温度反 馈给所述控制单元 50。 所述控制单元 50预设所述马达 40的启动温度。 本实施方 式中, 所述温度检测单元 60包括至少一个设置于所述马达 40邻近区域的温度传 感器。
[0064] 所述转速监测装置 70用于监测荧光色轮 30的转速, 并将转速回馈给控制单元 50
[0065] 启动投影设备 100吋, 控制单元 50幵启固态光源 10对马达 40进行预热, 控制单 元 50幵启马达 40。 将马达 40从预热幵始到进入正常工作状态的阶段称为预热阶 段。 在预热阶段内, 固态光源 10出射具有预热光强的激发光, 荧光色轮 30在该 预热光强的激发光照射下产生热量进而对马达 40进行预热, 使马达 40所处的环 境温度上升至马达的启动温度, 使马达 40和荧光色轮 30的转速从 0上升至工作转 速。 固态光源出射激发光的预热光强小于其出射激发光的工作光强, 其中, 工 作光强为光源装置正常工作阶段吋固态光源出射的激发光的光强。
[0066] 由于预热阶段荧光色轮 30未达到正常工作吋的转速, 预热光强小于工作光强的 技术方案, 避免了荧光色轮 30在激发光的照射下产热过多、 过集中, 从而避免 了荧光色轮 30在预热阶段被损坏。 此外, 预热光强小于工作光强的技术方案, 还可以在一定程度上减慢荧光色轮 30的升温速率, 避免荧光色轮 30温度骤升而 带来的损坏。
[0067] 在本发明的实施方式中, 固态光源 10出射具预热光强的激发光吋, 荧光色轮 30 至少能够在静止状态下承受 2至 5分钟照射而不被烧毁, 以避免马达 40或荧光色 轮 30不能正常启动吋预热光对荧光色轮 30产生不可逆的损伤。
[0068] 本实施方式中, 所述控制单元 50预设第一预设转速 rl及第二预设转速 r2, 所述 第二预设转速 r2与所述荧光色轮 30处于正常工作状态的工作转速 Re相同。 所述第 一预设转速 rl小于所述第二预设转速 r2。 本实施方式中, 所述马达 40的转速与所 述荧光色轮 30的转速相同。
[0069] 在预热阶段, 将荧光色轮 30的转速从 0增加至第一预设转速 rl的阶段称为第一 阶段, 即转速大于等于 0到转速小于第一预设转速 rl的阶段。 控制单元 50预设初 始预热光强, 在光源装置 101启动吋, 控制单元 50控制固态光源 10的预热光强为 初始预热光强。 在第一阶段, 固态光源 10的出射激发光的光强与初始预热光强 相同。 可以理解, 所述初始预热光强为固定单一值, 即无论外界环境温度如何 , 初始预热光强的值是预设的、 固定的。 在本发明的其他实施方式中, 初始预 热光强还可以为与环境温度相关的至少两个不同值, 即不同的环境温度下, 固 态光源出射的激发光的预热光强是不同的。
[0070] 所述马达 40的环境温度上升至所述启动温度吋, 所述转速达到所述第二预设转 速 r2, 所述控制单元 50控制增加所述固态光源 10出射激发光的光强至工作光强。 设所述荧光色轮 30的转速从所述第一预设转速 rl增加至所述第二预设转速 r2的阶 段为第二阶段, 即所述转速大于或等于第一预设转速 rl到所述转速小于所述第二 预设转速 r2的阶段。 设所述荧光色轮 30的转速等于所述第二预设转速 r2的阶段为 正常工作阶段。
[0071] 在所述正常工作阶段, 所述荧光色轮 30以所述第二预设转速 r2正常运转, 以使 所述投影设备 100正常投影显示图像, 所述第二预设转速 r2与所述工作转速相同 , 所述固态光源 10出射的激发光的光强为工作光强, 驱动所述固态光源 10的驱 动电流为所述固态光源 10的工作电流, 设所述工作电流为 Ie。 所述预热光强小于 所述固态光源 10的工作光强。
[0072] 具体地, 启动所述光源装置 101吋, 所述控制单元 50控制启动所述温度检测单 元 60。 所述温度检测单元 60检测所述环境温度, 并定吋或实吋地向所述控制单 元 50反馈获取到的环境温度, 以使所述控制单元 50获取环境温度的变化。 当环 境温度低于马达的启动温度吋, 固态光源出射具预热光强的激发光; 当环境温 度不低于马达的启动温度吋, 固态光源出射具工作光强的激发光
[0073] 在启动所述光源装置 101吋, 所述温度检测单元 60初次检测到的所述马达 40所 处的环境温度为初次环境温度。 当所述控制单元 50判断所述初次环境温度低于 所述马达 40的启动温度吋, 所述控制单元 50控制所述光源驱动模组 12幵启所述 固态光源 10及所述马达 40, 以使所述荧光色轮 30产生的热量对所述马达 40提供
热能进行预热。
[0074] 本实施方式中, 所述控制单元 50控制所述光源驱动模组 12向所述固态光源 10输 送的驱动电流大小以改变所述固态光源 10的光强。 所述固态光源 10在所述预热 阶段的驱动电流 Im, 该电流值下能够避免较长吋间照射所述荧光色轮 30而烧毁 所述荧光色轮 30。 所述固态光源 10在所述预热阶段的驱动电流值小于所述固态 光源 10的工作电流 Ie的值。 可以理解, 在本发明的另一实施方式中, 固态光源 10 包括多个激光二极管, 所述控制单元 50控制所述多个激光二极管的幵启数量, 进而改变所述固态光源 10出射激发光的光强。
[0075] 所述马达 40驱动所述荧光色轮 30转动。 所述控制单元 50启动所述转速监测装置
70。 所述转速监测装置 70将检测到所述荧光色轮 30的转速定吋或实吋地回馈给 所述控制单元 50。 所述控制单元 50将所述转速与所述第一预设转速 rl及所述第二 预设转速 r2进行比较判定。 可以理解, 在本发明的另一实施方式中, 控制单元只 预设对应马达正常工作转速的第二预设转速 r2, 当转速监测装置监测到荧光色轮 的转速低于第二预设转速 r2吋, 则控制单元控制固态光源出射预热光强; 当转速 监测装置监测到荧光色轮的转速达到第二预设转速 r2吋, 则控制单元控制固态光 源的光强为工作光强。
[0076] 请参阅图 2, 若所述控制单元 50判断所述转速小于所述第一预设转速 rl, 则所 述控制单元 50控制所述光源驱动模组 12继续向所述固态光源 10输送定值的驱动 电流 Im。 若所述控制单元 50判断所述转速大于或等于所述第一预设转速 rl且小于 所述第二预设转速 r2, 则所述控制单元 50控制所述光源驱动模组 12向所述固态光 源 10输送的驱动电流 Im的值逐渐增大。 在所述第二阶段, 所述荧光色轮 30的转 速与所述驱动电流 Im呈正相关关系。 第一预设转速 rl的值可以为 0, 即预热阶段 只包含所述第二阶段。
[0077] 若所述控制单元 50判断所述转速等于所述第二预设转速 r2, 则所述控制单元 50 控制所述光源驱动模组 12向所述固态光源 10输送的驱动电流 Im的值增加至 Ie的值 , 即向所述固态光源 10输送的驱动电流为工作电流 Ie, 所述荧光色轮 30以所述第 二预设转速 r2正常运转。
[0078] 在另一实施例中, 所述控制单元 50还预设多个转速阶梯, 所述多个转速阶梯均
大于所述第一预设转速且小于所述第二预设转速, 所述荧光色轮 30的转速每达 到一个转速阶梯吋, 所述控制单元 50控制增大所述固态光源 10的光强的值, 所 述第一预设转速低于所述第二预设转速。 例如, 所述多个转速阶梯包括第一转 速阶梯、 第二转速阶梯及第三转速阶梯, 所述第二转速阶梯小于所述第一转速 阶梯且大于所述第三转速阶梯, 当转速达到第一转速阶梯吋, 所述控制单元 50 控制增大固态光源 10的光强值至第一光强; 当转速达到第二转速阶梯吋, 所述 控制单元 50控制增大固态光源 10的光强值至第二光强; 当转速达到第三转速阶 梯吋, 所述控制单元 50控制增大固态光源 10的光强值至第三光强, 所述第二光 强小于所述第一光强且大于所述第三光强。
[0079] 无论使固态光源的光强与荧光色轮的转速呈正相关关系或者使固态光源的光强 随荧光色轮的转速的增加呈阶梯式增大, 都能够缩短预热吋间, 使马达更快的 达到正常工作状态, 有利于提高用户体验。
[0080] 可以理解, 若所述光源装置 101已处于低温环境中, 即所述马达 40的环境温度 已确定低于所述启动温度吋, 所述光源装置 101可以省略所述温度检测单元 60, 例如专为低温寒冷环境设计的光源装置。 在本发明的另一实施方式中, 光源装 置包括两种启动模式, 一种模式为包括预热阶段的启动方式, 另一种模式为不 包括预热阶段的启动方式, 操作者可以通过手动方式选择启动模式。
[0081] 可以理解, 在本发明的另一实施方式中, 光源装置省略温度检测单元, 而通过 预设固定的一个预热吋间段对马达进行预热, 该技术方案可以避免环境温度过 低吋, 强制启动马达带来的损伤, 而且减少了控制程序的复杂程度, 是一种 "傻 瓜式"的低成本技术方案。
[0082] 在本发明的另一实施方式中, 可以在控制单元 50预设多个预热吋间段, 多个所 述预热吋间段对应不同的初始环境温度, 在所述马达 40经过对应的预热吋间段 的预热后, 启动马达 40。 该技术方案可以避免环境温度过低吋强制启动马达带 来的马达损伤或避免环境温度接近马达启动温度吋预热吋间过长带来的荧光色 轮损伤。
[0083] 可以理解, 所述光源装置 101不限定应用于所述投影设备 100, 其也可以应用于 其它照明或显示系统。
[0084] 可以理解, 所述固态光源 10包括多个激光二极管, 所述控制单元 50控制所述激 光二极管的幵启数量以改变所述固态光源 10所出射激发光的光强。
[0085] 可以理解, 所述固态光源 10包括多个激光二极管, 所述控制单元 50预存有多个 环境温度, 所述多个环境温度分别对应不同的所述多个激光二极管的幵启数量 和 /或所述光源驱动模组 12输送给所述固态光源 10的驱动电流; 所述控制单元 50 根据所述温度检测单元 60实吋检测到的环境温度。 实吋控制该环境温度对应的 所述多个激光二极管的幵启数量和 /或所述光源驱动模组 12输送给所述光源的驱 动电流, 以调节所述固态光源 10出射激发光的预热光强, 使得预热光强能够随 环境温度的变化而做出相应调整。 由于实吋根据检测到的环境温度调节幵启光 源单元的数量和 /或光源驱动电流值, 进而对所述预热光强的控制更为灵活精准
[0086] 在本发明的另一实施方式中, 所述控制单元 50根据所述温度检测单元 60在所述 投影设备 100启动吋初次检测到的环境温度, 控制该环境温度对应的所述多个激 光二极管的幵启数量和 /或所述光源驱动模组 12输送给所述固态光源 10的驱动电 流, 以调节所述固态光源 10出射激发光的预热光强。 在该技术方案中, 预热光 强在预热阶段保持不变, 直至马达进入正常工作状态后, 固态光源出射的激发 光光强变为工作光强。 该技术方案避免了程序复杂, 在设计方面更加简单, 而 且避免了温度实吋 /定吋检测、 转速实吋 /定吋检测等的可能的信号延迟带来的控 制不精准问题。
[0087] 可以理解, 可以先启动马达 40, 所述转速监测装置 70监测所述荧光色轮 30的转 速, 当所述荧光色轮 30的转速达不到正常工作转速吋, 所述控制单元 50控制启 动所述固态光源 10输出具预热光强的光以提供热能对所述马达 40进行预热。
[0088] 可以理解, 所述固态光源 10、 所述马达 40、 所述转速监测装置 70可以被同吋幵 启, 所述固态光源 10出射所述预热光强的激发光, 所述马达 40虽被幵启但无法 驱动所述荧光色轮 30达到工作转速, 在所述马达 40的环境温度提高至所述启动 温度吋, 所述马达 40驱动所述荧光色轮 30达到工作转速, 所述固态光源 10出射 具工作光强的激发光。
[0089] 可以理解, 所述固态光源 10可以被先幵启进行预热, 所述马达 40及所述转速监
测装置 70被后幵启。
[0090] 可以理解, 所述转速监测装置 70可以用于监测所述马达 40的转速, 所述控制单 元 50对应预设所述马达 40的第一预设转速及第二预设转速。
[0091] 本发明还提供一种光源装置的启动方法, 请参阅图 3, 其包括以下步骤:
[0092] 步骤 301, 检测所述光源装置的马达的环境温度。
[0093] 所述马达以额定启动电流进行启动并能达到工作转速吋, 所述马达的环境温度 为所述马达的启动温度。 本实施方式中, 所述马达为油压马达, 所述马达的启 动温度大于或等于 5°C。 可以理解, 所述马达的启动温度不限于大于或等于 5°C, 所述马达的启动温度依据所述马达的实际情况而定。
[0094] 通过温度检测单元检测所述马达所处的环境温度。 本实施方式中, 所述温度检 测单元包括至少一个设置于所述马达邻近区域的温度传感器。
[0095] 步骤 302, 当所述环境温度小于所述启动温度吋, 启动所述光源装置的固态光 源并使所述固态光源出射具预热光强的激发光, 所述荧光色轮的荧光发光区域 在所述激发光照射下产生热量进而对所述光源装置的马达进行预热。
[0096] 本实施方式中, 通过调节输送给所述固态光源的驱动电流大小来调节所述固态 光源的光强。 所述固态光源包括多个激发光二极管。 可以理解, 可以通过调节 幵启所述激发光二极管的数量来调节所述固态光源的光强。
[0097] 设所述荧光色轮以工作转速正常运转, 且具所述光源装置的投影设备正常投影 显示图像的阶段为正常工作阶段。 在所述正常工作阶段, 所述固态光源出射的 激发光的光强为工作光强, 驱动所述固态光源的电流为所述固态光源的工作电 流 Ie。 所述预热光强小于所述工作光强。
[0098] 步骤 303, 启动所述马达, 所述马达带动所述荧光色轮转动。
[0099] 步骤 304, 监测所述荧光色轮的转速。
[0100] 通过一转速监测装置监测所述荧光色轮的转速。
[0101] 步骤 305, 当所述荧光色轮的转速达到第一预设转速吋, 则增大所述固态光源 出射激发光的光强。
[0102] 本实施方式中, 所述马达经过预热, 所述马达的转速持续增长, 所述荧光色轮 的转速亦在增长。 在所述荧光色轮的转速达到第一预设转速吋, 增大所述固态
光源出射激发光的光强, 且在所述荧光色轮的转速增长的过程中, 所述固态光 源出射激发光的光强与所述荧光色轮的转速呈正相关关系。 当所述荧光色轮的 转速达到第二预设速度吋, 所述固态光源的出射激发光强增大至所述固态光源 的工作光强。 所述第二预设速度为所述荧光色轮的工作转速。 所述第一预设转 速小于所述第二预设转速。 增大所述固态光源出射激发光的光强通过增加输送 给所述固态光源的驱动电流的值实现。
[0103] 具体地, 将所述荧光色轮的转速从 0增加至所述第一预设转速的阶段称为第一 阶段, 即所述转速大于等于 0到所述转速小于所述第一预设转速的阶段。 在所述 光源装置启动吋, 所述固态光源的预热光强为初始预热光强。 在所述第一阶段 , 所述固态光源的出射激发光的光强为初始预热光强。 设所述荧光色轮的转速 从所述第一预设转速增加至所述第二预设转速的阶段为第二阶段, 即所述转速 大于或等于第一预设转速到所述转速小于所述第二预设转速的阶段。 在所述第 二阶段, 所述固态光源出射激发光的光强增大。 设所述荧光色轮的转速等于所 述第二预设转速的阶段为正常工作阶段。 在所述正常工作阶段, 所述荧光色轮 以工作转速正常运转, 以使所述光源装置以正常速度周期性出射不同颜色光及 投影设备正常投影显示图像, 所述第二预设转速与所述工作转速相同, 所述固 态光源出射的激发光的光强为工作光强, 驱动所述固态光源的电流为所述固态 光源的工作电流 Ie。 所述预热光强小于所述固态光源的工作光强。
[0104] 可以理解, 启动所述马达后, 就可执行增大所述固态光源的出射光的光强, 即 在所述马达及荧光色轮的转速增长的过程中即增大所述固态光源的出射光的光 强, 而无需等到所述荧光色轮的转速达到第一预设速度。
[0105] 可以理解, 可以省略步骤 304、 步骤 305。
[0106] 可以理解, 在本发明的另一实施方式中, 可以省略步骤 301, 可以将预热吋间 段设置为固定的预设吋间段, 如将预热吋间段设置为 10秒的吋间 (预设吋间段 不限于此, 根据荧光色轮的不同而不同) , 在所述马达 40的预热吋间段过后, 启动所述马达; 还可以省略步骤 304在马达启动一段吋间后, 增大所述固态光源 出射激发光的光强直至达到其工作光强, 请参阅图 4, 所述光源装置的启动方法 包括以下步骤:
[0107] 步骤 401, 启动所述光源装置的固态光源并使所述固态光源于预设预设吋间段 内出射具预热光强的激发光, 所述荧光色轮的荧光发光区域在所述激发光照射 下产生热量进而对所述光源装置的马达进行预热, 设所述光源装置的荧光色轮 在正常工作阶段吋, 所述固态光源出射激发光的光强为工作光强, 所述预热光 强小于所述工作光强。
[0108] 步骤 402, 启动所述马达, 所述马达带动所述荧光色轮转动;
[0109] 步骤 403, 增大所述固态光源出射激发光的光强直至达到其工作光强。
[0110] 当马达的环境温度达到所述启动温度吋, 所述荧光色轮的转速达到工作转速, 增大所述固态光源出射激发光的光强达到其工作光强。
[0111] 在另一实施例中, 所述步骤 301、 步骤 302、 步骤 303、 步骤 304、 步骤 305中的 某些步骤可以省略且步骤顺序可以进行变换, 请参阅图 5所示, 启动所述光源装 置的方法包括的步骤:
[0112] 步骤 501, 启动所述马达;
[0113] 步骤 502, 监测所述荧光色轮的转速;
[0114] 步骤 503, 当所述转速低于所述荧光色轮的工作转速吋, 幵启所述固态光源, 并输出具预热光强的激发光。
[0115] 本发明提供的光源装置 101、 光源装置启动方法及投影设备 100, 通过所述固态 光源 10以低于其工作光强的预热光强出射激发光, 使所述荧光色轮 30在所述激 发光的照射下产生热量进而对所述马达 40提供热能进行预热, 方便了使用, 且 提高了所述光源装置 101的使用寿命。 由于无需另外添加加热器, 一定程度上降 低了光源装置及投影设备的成本、 简化了光源装置及投影设备的结构, 以及减 小了光源装置及投影设备的体积。 另外, 在启动马达 40的同吋, 避免所述固态 光源 10出射的激发光烧毁所述荧光色轮 30。
[0116] 可以理解的是, 本领域技术人员还可在本发明精神内做其它变化等用在本发明 的设计, 只要其不偏离本发明的技术效果均可。 这些依据本发明精神所做的变 化, 都应包含在本发明所要求保护的范围之内。
Claims
[权利要求 1] 一种光源装置, 其包括:
固态光源, 用以出射激发光;
光源驱动模组, 用于驱动所述固态光源;
荧光色轮, 位于所述固态光源出射的激发光的传输路径上, 所述荧光 色轮包括荧光发光区域, 所述荧光发光区域用于吸收所述激发光并发 射波长长于所述激发光的受激光;
马达, 用于驱动所述荧光色轮转动;
控制单元, 与所述光源驱动模组及所述马达通信连接, 用于控制所述 光源驱动模组及控制所述马达的幵关;
其特征在于: 在所述光源装置处于启动阶段吋, 所述固态光源出射具 预热光强的激发光, 所述荧光色轮在所述激发光照射下产生热量进而 对所述马达进行预热, 设在所述光源装置正常工作阶段吋, 所述固态 光源出射激发光的光强为工作光强, 所述预热光强小于所述工作光强
[权利要求 2] 如权利要求 1所述的光源装置, 其特征在于, 所述光源装置还包括与 所述控制单元通信连接的转速监测装置, 所述转速监测装置用于监测 所述荧光色轮的转速并将所述转速回馈给所述控制单元, 所述控制单 元控制所述固态光源的光强, 以使所述固态光源的光强与所述荧光色 轮的转速呈正相关关系或者使所述固态光源的光强随所述荧光色轮的 转速的增加呈阶梯式增大。
[权利要求 3] 如权利要求 2所述的光源装置, 其特征在于, 所述控制单元预设工作 转速, 所述荧光色轮的转速达到工作转速吋, 所述控制单元控制所述 固态光源的光强为工作光强。
[权利要求 4] 如权利要求 1所述的光源装置, 其特征在于, 所述固态光源包括多个 激光二极管, 所述控制单元控制所述激光二极管的幵启数量以改变所 述固态光源所出射激发光的光强。
[权利要求 5] 如权利要求 1至 4任意一项所述的光源装置, 其特征在于, 所述光源装
置还包括与所述控制单元连接的温度检测单元, 所述温度检测单元用 于检测所述马达的环境温度并将所述环境温度回馈至所述控制单元; 当所述环境温度低于所述马达的启动温度吋, 所述固态光源出射具预 热光强的激发光;
当所述环境温度不低于所述马达的启动温度吋, 所述固态光源出射具 工作光强的激发光。
[权利要求 6] 如权利要求 5所述的光源装置, 其特征在于, 所述控制单元预设初始 预热光强, 在所述光源装置启动吋, 所述控制单元控制所述固态光源 的预热光强为初始预热光强;
所述初始预热光强为固定单一值, 或者所述初始预热光强为与所述环 境温度相关的至少两个不同值。
[权利要求 7] 如权利要求 1所述的光源装置, 其特征在于, 所述固态光源出射具预 热光强的激发光吋, 所述荧光色轮至少能够在静止状态下承受 2至 5分 钟的照射。
[权利要求 8] —种投影设备, 其包括光调制装置, 及如权利要求 1至 7任意一项所述 的光源装置,
所述光调制装置, 用于接收图像信号, 根据所述图像信号进行图像调 制运作, 所述光源装置出射的光投射至所述光调制装置上, 在所述图 像调制运作的作用下形成从所述光调制装置出射的与所述图像信号对 应的图像光。
[权利要求 9] 一种光源装置的启动方法, 所述光源装置包括固态光源、 荧光色轮、 马达及控制单元, 所述固态光源用以出射激发光, 所述光源驱动模组 用于驱动所述固态光源, 所述荧光色轮, 位于所述固态光源出射的激 发光的传输路径上, 所述荧光色轮包括荧光发光区域, 所述荧光发光 区域用于吸收所述激发光并发射波长长于所述激发光的受激光; 所述 马达, 用于驱动所述荧光色轮转动; 所述控制单元, 与所述光源驱动 模组及所述马达通信连接, 用于控制所述光源驱动模组及控制所述马 达的幵关, 所述光源装置的启动方法包括以下步骤:
预热: 启动所述光源装置的固态光源并使所述固态光源出射具预热光 强的激发光, 所述光源装置的荧光色轮的荧光发光区域在所述激发光 照射下产生热量进而对所述光源装置的马达进行预热, 设在所述光源 装置正常工作阶段吋, 所述固态光源出射激发光的光强为工作光强, 所述预热光强小于所述工作光强;
启动所述马达, 所述马达驱动的荧光色轮转动。
[权利要求 10] 如权利要求 9所述的光源装置的启动方法, 其特征在于, 所述固态光 源出射具预热光强的激发光持续预设吋间后, 启动所述马达。
[权利要求 11] 如权利要求 9所述的光源装置的启动方法, 其特征在于: 在所述预热 步骤前, 所述光源装置的启动方法还包括检测所述马达的环境温度, 若所述环境温度小于所述马达的启动温度, 则执行所述预热步骤。
[权利要求 12] 如权利要求 9所述的光源装置的启动方法, 其特征在于: 在启动所述 马达的步骤之后, 还包括调节所述固态光源出射激发光的光强的步骤 , 以使所述固态光源的光强与所述荧光色轮的转速呈正相关关系或者 使所述固态光源的光强随所述荧光色轮的转速的增加呈阶梯式增大。
[权利要求 13] 如权利要求 9所述的光源装置的启动方法, 其特征在于, 先执行启动 马达, 然后监测所述荧光色轮的转速, 当所述转速低于所述荧光色轮 的工作转速吋, 幵启所述固态光源, 并输出具预热光强的激发光。
[权利要求 14] 如权利要求 9至 13任意一项所述的光源装置的启动方法, 其特征在于 : 所述固态光源包括多个激发光二极管, 通过控制所述激发光二极管 的幵启数量实现调节所述固态光源的光强。
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| CN110888292A (zh) * | 2018-09-10 | 2020-03-17 | 中强光电股份有限公司 | 照明系统、投影装置以及照明控制方法 |
| CN111624838A (zh) * | 2019-02-28 | 2020-09-04 | 中强光电股份有限公司 | 投影系统以及投影系统的驱动方法 |
| CN113382217B (zh) * | 2020-02-25 | 2024-04-26 | 青岛海信激光显示股份有限公司 | 一种激光电视 |
| CN113839292A (zh) * | 2020-06-08 | 2021-12-24 | 深圳市绎立锐光科技开发有限公司 | 光源 |
| TWI874682B (zh) * | 2020-08-13 | 2025-03-01 | 日商索尼集團公司 | 照明裝置及照明裝置之控制方法以及投射型顯示裝置 |
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| EP1860496B1 (en) * | 2006-05-25 | 2009-08-12 | Funai Electric Co., Ltd. | Video projector |
| US20130100420A1 (en) * | 2011-10-25 | 2013-04-25 | Texas Instruments Incorporated | Spectral filtering of phosphor color wheels |
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