CN108073018A - The startup method of optic modulating device and dependent projections equipment - Google Patents

The startup method of optic modulating device and dependent projections equipment Download PDF

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Publication number
CN108073018A
CN108073018A CN201611005513.7A CN201611005513A CN108073018A CN 108073018 A CN108073018 A CN 108073018A CN 201611005513 A CN201611005513 A CN 201611005513A CN 108073018 A CN108073018 A CN 108073018A
Authority
CN
China
Prior art keywords
light
temperature
optic modulating
modulating device
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611005513.7A
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Chinese (zh)
Inventor
杨佳翼
陈红运
李屹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Priority to CN201611005513.7A priority Critical patent/CN108073018A/en
Priority to PCT/CN2017/105807 priority patent/WO2018090764A1/en
Publication of CN108073018A publication Critical patent/CN108073018A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
    • 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
    • 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
    • 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
    • G03B21/16—Cooling; Preventing overheating
    • 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]
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)

Abstract

A kind of projector equipment, including light supply apparatus, optic modulating device, light modulation driving module and middle control module.Light supply apparatus is to emergent light, optic modulating device is used to receive described image signal and is emitted image light corresponding with picture signal, for light modulation driving module for driving the optic modulating device, middle control module drives module communication connection with the light supply apparatus and the light modulation.Light supply apparatus outgoing preheating light before the optic modulating device is opened is preheated with providing heat to the optic modulating device.The present invention also provides a kind of startup methods of optic modulating device.

Description

The startup method of optic modulating device and dependent projections equipment
Technical field
The present invention relates to optics display technology field, the startup method and dependent projections of more particularly to a kind of optic modulating device Equipment.
Background technology
Optic modulating device is to be widely used in the fields such as Projection Display, wherein, DMD (Digital Micromirror Device, digital micro-mirror device) it is widely used in as main spatial light modulating apparatus in digital projector.DMD includes Multiple separate units, each separate unit include speculum, torsional axis, electrode and other micro-structures, are controlled and reflected by circuit The deflection angle of mirror, so as to fulfill the modulation to showing image.The optic modulating device is more sensitive to temperature, if less than The start-up temperature of the optic modulating device is started, and not only cannot normally be started, and is also easy to in the optic modulating device Micro-structure damages, and influences precision and the service life of the optic modulating device.This problem limits the Projection Displays for being configured with DMD Device is in the popularization of cold district.
The content of the invention
To solve the above problems, it is necessary to provide a kind of startup method of optic modulating device and dependent projections equipment.
A kind of startup method of optic modulating device applied to projector equipment, including step：
Preheating：It is carried out in advance to the optic modulating device by the light supply apparatus input preheating light of projector equipment with providing heat Heat；
Start the optic modulating device.
Further, before the preheating step, the environment temperature residing for the optic modulating device is detected, when detecting When stating the residing environment temperature of optic modulating device less than the first preset temperature, then the preheating step is performed；Alternatively, described Before preheating step, the temperature of the optic modulating device is detected, when the temperature for detecting the optic modulating device is default less than second During temperature, then the preheating step is performed.
Further, preheating time section is set according to the environment temperature residing for the optic modulating device detected；Alternatively, According to the temperature setting preheating time section for detecting the optic modulating device.
Further, when the environment temperature residing for the optic modulating device is improved to first preset temperature, perform The step of startup optic modulating device；Alternatively, when the temperature of the optic modulating device is improved to the described second default temperature When spending, described the step of starting the optic modulating device is performed.
Further, in the preheating step, the preheating time section preheated to the optic modulating device is fixed value.
Further, the light supply apparatus includes multiple light sources unit, in the preheating step, further includes and passes through control The unlatching quantity of the multiple light source unit is come the step of adjusting the preheating light light intensity of the light supply apparatus；
Alternatively, the light supply apparatus includes light source and drives the light source driving module of light source, in the preheating step, also The preheating of the light supply apparatus is adjusted including driving the module to be conveyed to the driving current of the light source by adjusting the light source The step of light light intensity；
Alternatively, the light supply apparatus includes light source and drives the light source driving module of light source, the light source includes multiple light Source unit in the preheating step, further includes the drive for by adjusting the light source module being driven to be conveyed to the light source unit The unlatching quantity of streaming current and the multiple light source unit of control is come the step of adjusting the light supply apparatus preheating light light intensity.
A kind of projector equipment, including：
Light supply apparatus, to emergent light；
For receiving picture signal, image modulation running, the light source are carried out according to described image signal for optic modulating device On light projection to the optic modulating device of device outgoing, formed under the action of described image modulation running from the light modulation The image light corresponding with described image signal of device outgoing,
Middle control module is communicated to connect with the light supply apparatus, and the middle control module is used to control the light supply apparatus in institute Outgoing preheating light before optic modulating device is opened is stated, is preheated with providing heat to the optic modulating device.
Further, the light supply apparatus includes light source and for the light source of the light source to be driven to drive module, the light Source drives module to be connected with the middle control module, and the light source includes multiple light sources unit；It is carried out to the optic modulating device During preheating, the unlatching quantity of the multiple light source unit is controlled by the middle control module to adjust the preheating that the light source is emitted The light intensity of light；And/or by the middle control module control the light source drive module be conveyed to the driving current of the light source come Adjust the light intensity of the preheating light of the light source outgoing.
Further, the projector equipment further includes storage device, and the storage device prestores the preheating of fixed single value Period, when a length of preheating time section that the light supply apparatus preheats the optical modulator.
Further, the projector equipment further includes temperature-detecting device, for detecting target temperature and feeding back to described Middle control module, the middle control module judge whether to control the light supply apparatus outgoing preheating light according to the target temperature；
The target temperature is the environment temperature of the optic modulating device or the temperature of the optic modulating device.
Further, the middle control module controls the light intensity of the preheating light of the light supply apparatus outgoing, so that the preheating The light intensity of light and the target temperature correlation make the light intensity of the preheating light with the increase of the target temperature Increase in staged.
Further, environment temperature of the target temperature residing for the optic modulating device, the middle control module are preset First preset temperature, when the middle control module judges that the target temperature is less than first preset temperature, then the middle control The light supply apparatus outgoing preheating light is opened in module control；
Alternatively, the target temperature is the temperature of the optic modulating device, the middle control module preset second level temperature, When the target temperature that the middle control module judgement detects is less than second preset temperature, then the middle control module control System opens the light supply apparatus outgoing preheating light.
Further, the projector equipment further includes storage device, and the storage device prestores multiple preheating times section, institute It states multiple preheating time sections and corresponds to different initial target temperatures respectively, the initial target temperature starts for the projector equipment When, target temperature that the temperature-detecting device primary detection arrives.
Further, the projector equipment further includes storage device, and the light supply apparatus includes light source and light source driving mould Group, the light source include multiple light sources unit,
The storage device prestores multiple target temperatures, and the multiple target temperature corresponds to different the multiple respectively The unlatching quantity of light source unit and/or light source driving module are conveyed to the driving current of the light source；
The target temperature that the middle control module detects in real time according to the temperature-detecting device, controls the target temperature in real time It spends the unlatching quantity of corresponding the multiple light source unit and/or light source driving module is conveyed to the driving electricity of the light source Stream, to adjust the light intensity of the preheating light of the light source outgoing；Or
The middle control module is according to the temperature-detecting device target that primary detection arrives when the projector equipment starts Temperature controls the unlatching quantity of the corresponding the multiple light source unit of the target temperature and/or light source driving module conveying To the driving current of the light source, to adjust the light intensity of the preheating light of the light source outgoing.
A kind of projector equipment, including：
Light supply apparatus, to emergent light；
For receiving picture signal, image modulation running, the light source are carried out according to described image signal for optic modulating device On light projection to the optic modulating device of device outgoing, formed under the action of described image modulation running from the light modulation The image light corresponding with described image signal of device outgoing,
Light modulation drives module, for driving the optic modulating device,
Middle control module, with light modulation driving module communication connection, the optic modulating device includes semiconductor cooler, The middle control module be used to the heat-production functions of the semiconductor cooler be controlled to be opened before optic modulating device unlatching with Heat is provided to the optic modulating device to preheat.
Further, the projector equipment further includes storage device, and the storage device prestores the preheating of fixed single value Period, when heating of the semiconductor cooler a length of preheating time section.
Further, the projector equipment further includes temperature-detecting device, for detecting target temperature and feeding back to described Middle control module,
The target temperature is the environment temperature of the optic modulating device or the temperature of the optic modulating device.
Further, the semiconductor cooler is when reaching the target temperature, the heating of the semiconductor cooler Function is closed.
Further, when the target temperature is the environment temperature residing for the optic modulating device, the middle control module is pre- If the first preset temperature, when it is described it is middle control module judge the target temperature be less than first preset temperature when, then it is described partly The heat-production functions of conductor refrigerator are opened；Alternatively, when the target temperature is the temperature of the optic modulating device, the middle control Module preset second level temperature, when the target temperature that the middle control module judgement detects is less than the described second default temperature When spending, then the heat-production functions of the semiconductor cooler are opened.
Further, the projector equipment further includes storage device, and the storage device prestores multiple preheating times section, institute It states multiple preheating time sections and corresponds to different initial target temperatures respectively, the initial target temperature starts for the projector equipment When, target temperature that the temperature-detecting device primary detection arrives；The middle control module is additionally operable to control the semiconductor refrigerating Device opens the heat-production functions in the corresponding preheating time section of the initial target temperature.
Further, the projector equipment further includes fan, and the fan is in the heat-production functions of the semiconductor cooler It is opened when opening；
Alternatively, the fan is opened when the optic modulating device is opened.
Further, the light supply apparatus is opened in the heat-production functions of the semiconductor cooler when before being closed Between opened in section and be emitted preheating light.
Compared with prior art, the startup method and projector equipment of optic modulating device provided by the invention, passes through light source Device input luminous energy turns or optic modulating device offer heat is preheated by semiconductor cooler heating, and then can The optic modulating device is made normally to start, extend the service life of the optic modulating device and the projector equipment and is improved Functional reliability.
Beneficial effects of the present invention also reside in, and by light source the structure of projector equipment in itself make use of to realize and light modulation is filled The pre- hot function put avoids the increase of projector equipment volume, reduces the complexity of design.
Description of the drawings
Fig. 1 is the functional module group schematic diagram for the projector equipment that first embodiment of the invention provides；
Fig. 2 is the functional module group schematic diagram for the projector equipment that second embodiment of the invention provides；
Fig. 3 is the functional module group schematic diagram for the projector equipment that third embodiment of the invention provides；
Fig. 4 is the startup method flow diagram of optic modulating device provided by the invention；
Fig. 5 is the startup method flow diagram of another optic modulating device provided by the invention；
Fig. 6 is the startup method flow diagram of another optic modulating device provided by the invention.
Main element symbol description
Projector equipment 100,200,300
Light supply apparatus 101,201,301
Optic modulating device 105,205,305
Semiconductor cooler 3051
Light modulation drives module 106,206,306
Middle control module 107,207,307
Temperature-detecting device 108,208,308
Storage device 210
Light source 11,21,31
Light source drives module 13,23,33
Colour wheel 17,27,37
Light source unit 112,212,312
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment belongs to the scope of protection of the invention.In the case where there is no conflict, the feature in following embodiment and embodiment can To be mutually combined.
It should be noted that in the present invention, when a component is considered as with another component " being connected ", it can be with It is to be connected directly with another component or be indirectly connected by component placed in the middle and another component.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Refering to Figure 1, first embodiment of the invention provides a kind of projector equipment 100, including light supply apparatus 101st, optic modulating device 105, light modulation driving module 106, middle control module 107 and temperature-detecting device 108.
The light supply apparatus 101 is used for emergent light.The light supply apparatus 101 include light source 11, light source driving module 13 and Colour wheel 17.The light source 11 is used for emergent light.The light source drives module 13 to drive the light source 11.The colour wheel 17 In in the transmission path of the light of the light source 11 outgoing.In present embodiment, the light source 11 is excitation light source, sharp for being emitted It shines.The colour wheel 17 is fluorescence colour wheel, includes at least one fluorescence radiation region (not shown) on the colour wheel 17.It is described glimmering Light light-emitting zone carries out wavelength convert under the irradiation of the exciting light and generates heat.The light source 11 includes multiple light sources unit 112。
The optic modulating device 105 carries out image modulation running for receiving picture signal, according to described image signal.Institute On light projection to the optic modulating device 105 for stating the outgoing of light supply apparatus 101, formed under the action of described image modulation running The image light corresponding with described image signal being emitted from the optic modulating device 105.
In present embodiment, the optic modulating device 105 is digital micromirror elements (Digital Micromirror Device, DMD).The optic modulating device 105 is a kind of structure of digital micro machine.It is described to ensure service life and operating accuracy Requirement of the optic modulating device 105 to operating temperature is high, usually requires that the temperature control of the optic modulating device 105 is centainly working Within temperature range.When the temperature of the optic modulating device 105 is less than minimum operating temperature, in other words, the light modulation The temperature of device 105 is less than the minimum threshold values of its operating temperature, and the optic modulating device 10 is difficult to start and can not ensure work Make precision.The start-up temperature of optic modulating device 105 between the minimum operating temperature is set to described.It is described in present embodiment Start-up temperature is 5 DEG C, the technical solution temperature without being limited thereto that certain present invention protects.
The light modulation driving module 106 is connected with the optic modulating device 105, for driving the optic modulating device 105。
The middle control module 107 drives module 13 and light modulation driving module 106 to communicate to connect with the light source, uses In the control light supply apparatus 101 and described optic modulating device 105 etc. so that light supply apparatus 101 is opened in optic modulating device 105 Preceding outgoing preheating light, is preheated with providing heat to optic modulating device 105.Herein, the unlatching of optic modulating device 105 refers to light Modulating device 105 starts to be modulated incident light, and the incident beam modulated is become image light.Middle control module 107 in Fig. 1 is one A module, it will be understood that middle control module or respectively two or more modules of control light source and optic modulating device composition.
The projector equipment 100 further includes other necessary or inessential structure, such as projection lens's head, and therefore not to repeat here.
The middle control module 107 is preset with the first preset temperature.
The temperature-detecting device 108 is used to detect target temperature.When the projector equipment 100 is started, the temperature The target temperature that 108 primary detection of detection device arrives is initial target temperature.In present embodiment, the temperature-detecting device 108 set adjacent to the optic modulating device 105 and are communicated to connect with the middle control module 107.The temperature-detecting device 108 is used Feed back in the environment temperature detected residing for the optic modulating device 105 and periodically or in real time the middle control module 107, middle control Module 107 judges whether to control the outgoing preheating light of light supply apparatus 101 according to target temperature, to realize intelligentized control method.In this reality It applies in mode, environment temperature of the target temperature residing for the optic modulating device 105.At the beginning of the temperature-detecting device 108 Environment temperature residing for the secondary optic modulating device 105 detected is initial target temperature.
The temperature-detecting device 108 includes at least one temperature for being arranged at 105 adjacent domain of optic modulating device Sensor.It is appreciated that the temperature-detecting device 108 can be arranged at the projector equipment 100 casing (not shown) or Person sets the neighbouring light supply apparatus 101 to set.When the middle control module 107 judges the initial target temperature less than described the During one preset temperature, the middle control module 107 then opens the light supply apparatus 101.The environment temperature is less than the initial mesh When marking temperature, the temperature of the optic modulating device 105 is less than the start-up temperature of the optic modulating device 105.
The light supply apparatus 101 is emitted preheating light the stage that the optic modulating device 105 preheats is known as preheating Stage.By the normal operation in operating temperature range of optic modulating device 105, i.e., described projector equipment 100 can normally into The stage of row projection-display image is known as working stage.The working stage is located at, the light source driving module 13 is conveyed to institute The driving current for stating light source 11 is known as operating current.
When starting the projector equipment 100, the temperature-detecting device 108 detects the initial target temperature and feeds back to The middle control module 107.When the middle control module 107 judges that the initial target temperature is less than first preset temperature, control System opens the light supply apparatus 101 so that the outgoing preheating light of the light supply apparatus 101, so to the optic modulating device 105 into Row preheating.When the temperature-detecting device 108 detects that the target temperature rises to first preset temperature, i.e., described light When the temperature of modulating device 105 is improved to the start-up temperature, the middle control module 107 controls the light modulation driving module The 106 driving optic modulating devices 105, and then start the optic modulating device 105.The middle control module 107 controls the light Source drives module 13, and to 112 transportation work electric current of whole light sources unit, the projector equipment 100 enters the working stage.It is logical It crosses light source output preheating light to preheat optic modulating device offer heat, make use of the structure of projector equipment in itself, avoid The increase of projector equipment volume, the complexity for reducing design.
Since the cataclysm of temperature easily causes to damage to the micro-structure inside the optic modulating device 105, it is preheating During the optic modulating device 105, by the light intensity (light intensity for preheating light) for adjusting 101 emergent light of light supply apparatus To gradually step up the environment temperature.
In present embodiment, control the light source that module 13 is driven to be conveyed to the light source by the middle control module 107 11 driving current adjusts the light intensity of the light source 11.For example, in warm-up phase, the middle control module 107 controls the light Source driving module 13 starts all light source units 112, and the middle control module 107 controls the light source driving module 13 to convey It is gradually increased to the driving current value of the light source unit 112.By controlling driving current, it can continuously change preheating light Light intensity is conducive to the gentle rising of the temperature of optic modulating device, so as to extend its working life.
It is appreciated that the light intensity of light source can also be adjusted by controlling the unlatching quantity of multiple light sources unit, preheating Stage, the middle control module 107 control the light source driving module 13 to open the light source unit 112 one by one.By controlling light The unlatching quantity of source unit can avoid the complexity of current regulation, and the light intensity of light can be preheated with more precise control.
It is appreciated that it can also will control the light source that module is driven to be conveyed to the light source by the middle control module Driving current by the middle control module with controlling the unlatching quantity of the multiple light source unit to be combined, and the length of the two is adjusted Save the light intensity of the preheating light of light source outgoing.The middle control module 107 controls and opens the light source unit 112 one by one, and it is described in The driving current value that control module 107 controls the light source driving module 13 to be conveyed to the light source unit 112 gradually increases.It is described The value of driving current is less than the value of the operating current, and the light that the light source 11 is emitted is avoided to burn the colour wheel 17.
In the other embodiment of the present invention, it is pre- that the middle control module 107 controls the light supply apparatus 101 to be emitted The light intensity of hot light so that light intensity and the target temperature correlation of the preheating light, i.e., with optical modulator or its The rising of the temperature of environment gradually steps up the light intensity of preheating light.For example, the t1 moment preheats the light intensity of light as I1, target temperature is T1；The light intensity that the t2 moment preheats light is I2, target temperature T2.As T2 ＞ T1, always there are I2 ＞ I1.Which can promote light Modulator reaches operating temperature faster, which is particularly suited for but is not limited to preheat light by adjusting of light source drive current The technical solution of the means of light intensity.Meanwhile when target temperature is relatively low, the temperature difference of the start-up temperature of target temperature and optical modulator Greatly, light is too strong that heating rate can be caused too fast for preheating, may generate damage to optical modulator.
In the embodiment of a deformation, the light intensity that can also make the preheating light is in the increase of the target temperature Staged increases, i.e., whenever the temperature of optical modulator or its environment rises to a particular value, is increased by the light intensity of preheating light, with Optical modulator is promoted to reach operating temperature faster.For example, the light intensity that the t1 moment preheats light is I1, target temperature T1；During t2 The light intensity for carving preheating light is I2, target temperature T2.During T2 ＞ T1, I2 ＞ I1, and be in target temperature in T1~T2 sections When, constant preheating light light intensity is I1.The embodiment is particularly suited for but is not limited to using the unlatching quantity of plural light source unit as tune The technical solution of the means of section preheating light light intensity.
Present embodiment reduces preheating light in optical modulator heating process to light by controlling the light intensity of preheating light The damage of modulator so that the light intensity for preheating light is less than the light intensity of light source when projector equipment works normally.In the another of the present invention In embodiment, the light intensity preheated when the light intensity of light is worked normally with projector equipment is identical, and the technical solution of the embodiment saves The intensity control system to preheating light is gone so that equipment cost is lower, is easier to safeguard.
It is appreciated that the colour wheel 17 can be optical filtering colour wheel, the optical filtering colour wheel includes at least a filtered region, uses In the light by required wavelength.
It is appreciated that the light supply apparatus 101 includes solid state light emitter, the solid state light emitter is laser diode, luminous two The one or two of pole pipe, the solid state light emitter startup time is short, is easy to Digital Control.
It is appreciated that the light supply apparatus 101 can be omitted the colour wheel 17, the light supply apparatus 101 can be emitted institute Need the light of wavelength.
It is appreciated that the light supply apparatus 101 further includes the one or more in UHP lamps, UHE lamps, metal halid lamp.
In another embodiment of the present invention, the temperature-detecting device 108 can be omitted, i.e., does not detect environment temperature Degree, the middle control module 107 presets the preheating time section of fixed single value, for example, preheating time section is 10 seconds, in described Control module 107 controls the light source driving module 13 to open the light source 11 and the optic modulating device 105 is carried out with preheating light Preheating, after preheating 10 seconds, the middle control module 107 controls the light source driving light source unit of the module 13 to the light source 11 112 transportation work electric current Ie, the middle control module 107 control the light modulation driving module 106 to drive the optic modulating device 105；It is, of course, also possible to the quantity for opening light source unit 112, the driving light source unit 112 are set in the middle control module 107 Driving current value, to be more precisely controlled the warm to the optic modulating device 105, reduce to the optic modulating device 105 damage.Temperature-sensing system is omitted in which, has saved cost and technology difficulty, while ensure that optic modulating device A degree of preheating can be obtained before activation, be a kind of Eco-power selection, the projector equipment one with the above embodiment It is same to cover broader product market scope.
In a change embodiment, the temperature-detecting device 108 can be arranged on the optic modulating device 105, used In the temperature for detecting the optic modulating device 105 and the middle control module 107 is fed back to, i.e., described target temperature is the light tune The temperature of device 105 processed.The initial target temperature is the target temperature that 108 primary detection of temperature-detecting device arrives.Institute It states middle control module 107 and presets one second preset temperature, the start-up temperature of second preset temperature and the optic modulating device 105 It is identical.When starting the projector equipment 100, the temperature-detecting device 108 detects the initial target temperature and feeds back to institute State middle control module 107.When the middle control module 107 judges that the initial target temperature is less than second preset temperature, control The light supply apparatus 101 is opened so that the outgoing of the light supply apparatus 101 preheats light, and then the optic modulating device 105 is carried out Preheating.When the temperature-detecting device 108 detects that the target temperature rises to second preset temperature, the middle control Module 107 controls the light modulation driving module 106 to drive the optic modulating device 105, and then starts the optic modulating device 105。
In an embodiment of the invention, the first preset temperature and the second preset temperature are equal to optic modulating device Minimum start-up temperature.Minimum start-up temperature is the minimum temperature that can normally start and will not damage of optic modulating device, Or the lower limiting value of the operating temperature range for optic modulating device product mark.
It refers to shown in Fig. 2, second embodiment of the invention provides a kind of projector equipment 200, including light supply apparatus 201st, optic modulating device 205, light modulation driving module 206, middle control module 207, temperature-detecting device 208 and storage device 210. Second embodiment of the invention adds storage device 210 compared with first embodiment, the description of other devices and corresponding Technical solution be referred to it is above-mentioned arbitrarily with the reconcilable description of present embodiment.
The light supply apparatus 201 is used for emergent light.The light supply apparatus 201 include light source 21, light source driving module 23 and Colour wheel 27.The light source 21 is used for emergent light.The light source drives module 23 to drive the light source 21.The colour wheel 27 In in the transmission path of the light of the light source 21 outgoing.In present embodiment, the light source 21 is excitation light source, sharp for being emitted It shines.The colour wheel 27 is fluorescence colour wheel, includes at least one fluorescence radiation region (not shown) on the colour wheel 27.It is described glimmering Light light-emitting zone carries out wavelength convert under the irradiation of the exciting light and generates heat.The light source 21 includes multiple light sources unit 212。
The optic modulating device 205 carries out image modulation running for receiving picture signal, according to described image signal.Institute On light projection to the optic modulating device 205 for stating the outgoing of light supply apparatus 201, formed under the action of described image modulation running The image light corresponding with described image signal being emitted from the optic modulating device 205.
In present embodiment, the optic modulating device 205 is digital micromirror elements (Digital Micromirror Device, DMD).The optic modulating device 205 is a kind of structure of digital micro machine.It is described to ensure service life and operating accuracy Requirement of the optic modulating device 205 to operating temperature is high, usually requires that the temperature control of the optic modulating device 205 is centainly working Within temperature range.When the temperature of the optic modulating device 205 is less than minimum operating temperature, the optic modulating device 20 is difficult to Start and can not ensure operating accuracy.The start-up temperature of optic modulating device 205 between the minimum operating temperature is set to described. In present embodiment, the start-up temperature is 5 DEG C.
The light modulation driving module 206 is connected with the optic modulating device 205, for driving the optic modulating device 205。
The middle control module 207 drives module 23 and light modulation driving module 206 to communicate to connect with the light source, uses In the control light supply apparatus 201 and described optic modulating device 205 etc..The projector equipment 200 further includes other necessary or non- Necessary structure, such as projection lens's head, therefore not to repeat here.
The temperature-detecting device 208 is used to detect target temperature.When the projector equipment 200 is started, the temperature The target temperature that 208 primary detection of detection device arrives is initial target temperature.In present embodiment, the temperature-detecting device 208 set adjacent to the optic modulating device 205 and are communicated to connect with the middle control module 207.The temperature-detecting device 208 is used Feed back in the environment temperature detected residing for the optic modulating device 205 and periodically or in real time the middle control module 207.It is described Environment temperature of the target temperature residing for the optic modulating device 205.208 primary detection of temperature-detecting device arrives described Environment temperature residing for optic modulating device 205 is initial target temperature.It is appreciated that the temperature-detecting device 208 can be used In the temperature for detecting the optic modulating device 205, then the target temperature is the temperature of the optic modulating device 205, the temperature The temperature for the optic modulating device 205 that degree 208 primary detection of detection device arrives is initial target temperature.
The temperature-detecting device 208 includes at least one temperature for being arranged at 205 adjacent domain of optic modulating device Sensor.It is appreciated that the temperature-detecting device 208 can be arranged at the projector equipment 200 casing (not shown) or Person sets the neighbouring light supply apparatus 201 to set.When the middle control module 207 judges the initial target temperature less than described the During one preset temperature, the middle control module 207 then opens the light supply apparatus 201.The environment temperature is pre- less than described first If during temperature, the temperature of the optic modulating device 205 is less than the start-up temperature of the optic modulating device 205.
The light supply apparatus 201 is emitted preheating light the stage that the optic modulating device 205 preheats is known as preheating Stage.By the normal operation in operating temperature range of optic modulating device 205, i.e., described projector equipment 200 can normally into The stage of row projection-display image is known as working stage.The working stage is located at, the light source driving module 23 is conveyed to institute The driving current for stating light source 21 is known as operating current.
The projector equipment 200 further includes storage device 210.The storage device 210 connects with the middle control module 207 It connects, for storing multiple initial target temperatures and its section of corresponding preheating time.For example, the first initial target temperature A1 is corresponding Preheating time section is X1.Specifically, when that need to start the projector equipment 200, the temperature-detecting device 208 detects described first Beginning target temperature, such as A1, and feed back to the middle control module 207.The middle control module 207 judges the initial target temperature A1 During less than first preset temperature, the middle control module 207 carries out lookup comparison in the storage device 210, confirms institute State the corresponding preheating time section X1 of initial target temperature A1.Middle control module 207 control open the light supply apparatus 201 so that 201 emergent light of light supply apparatus, and then the optic modulating device 205 is preheated.When by preheating time section X1 Afterwards, the middle control module 207 controls the light modulation driving module 206 to drive the optic modulating device 205, and then starts institute State optic modulating device 205.
In a change embodiment, the storage device 210 stores different initial target temperatures and its corresponding unlatching The quantity of the light source unit 212, but the corresponding preheating time section of different initial target temperatures is identical.It is for example, initial The corresponding quantity for opening the light source unit 212 of target temperature B1 is N1, and preheating time section is Y；B2 pairs of initial target temperature The quantity for the unlatching light source unit 212 answered is N2, and preheating time section is the corresponding unlatching institutes of Y ... initial target temperatures BN The quantity of light source unit 212 is stated as NN, preheating time section is Y.Specifically, when starting the projector equipment 200, the temperature inspection The environment temperature B1 residing for optic modulating device 205 described in 108 primary detection of device is surveyed, and feeds back to the middle control module 207.Institute State it is middle control module 207 judge the environment temperature B1 be less than first preset temperature when, it is described it is middle control module 207 deposited in described Lookup comparison is carried out in storage device 210, the quantity for confirming the corresponding unlatching light source units 212 of the environment temperature B1 is N1.The middle control module 207 controls the light source driving module 206 to open N1 light source unit 212, and then to the light modulation Device 205 is preheated.After by preheating time section Y, the middle control module 207 controls the light modulation driving mould The 206 driving optic modulating device 205 of group, and then start the optic modulating device 205.Since only part light source unit 112 is opened Open, impacted caused by the element the colour wheel 27, the optic modulating device 205 and other projector equipments 200 it is smaller, and control System is simple.
In a change embodiment, the storage device 210 stores multiple initial target temperatures and correspondence is conveyed to respectively The driving current of the light source unit 212, to be whole, the preheating time Duan Jun is the quantity that the light source unit 212 is opened Identical.For example, the corresponding driving currents for being conveyed to the light source unit 212 of initial target temperature C1 are I1, preheating time Section is Y；The corresponding driving currents for being conveyed to the light source unit 212 of initial target temperature C2 are I2, and preheating time section is The corresponding driving current IN for being conveyed to the light source unit 212 of Y ... environment temperatures CN, preheating time section are Y.Specifically, When that need to start the projector equipment 200, the temperature-detecting device 208 detects the initial target temperature C1, and feeds back to The middle control module 207.When the middle control module 207 judges that the initial target temperature C1 is less than first preset temperature, The middle control module 207 carries out lookup comparison in the storage device 210, confirms that the initial target temperature C1 is corresponding defeated The driving current for giving the light source unit 212 is I1.The middle control module 207 controls the light source to drive module 23 to whole 212 feed drive electric current I1 of light source unit, and then the optic modulating device 205 is preheated.When by the preheating time After section Y, the middle control module 207 controls the light modulation driving module 206 to drive the optic modulating device 205, Jin Erqi Move the optic modulating device 205.Due to opening whole light sources unit 112, and different initial target temperatures is set corresponding The driving current of the light source unit 212 is conveyed to, and preheating time section is identical, control is simple.
In a change embodiment, the storage device 210 prestores multiple target temperatures, the multiple target temperature point The unlatching quantity and/or light source driving module 23 for not corresponding to different the multiple light source units 212 are conveyed to the light The driving current in source 21；The target temperature that the middle control module 207 detects in real time according to the temperature-detecting device 208, it is real When control the corresponding the multiple light source unit 212 of the target temperature unlatching quantity and/or the light source driving module 23 The driving current of the light source 21 is conveyed to, to adjust the light intensity of the preheating light of the light source outgoing；Or the middle control module 207 according to the temperature-detecting device 208 target temperature that primary detection arrives when the projector equipment 200 starts, and control should The unlatching quantity of the corresponding the multiple light source unit 212 of target temperature and/or light source driving module 23 are conveyed to described The driving current of light source 21, to adjust the light intensity for the preheating light that the light source 21 is emitted.Due in real time according to the target detected Temperature, which is adjusted, opens the quantity of light source unit and/or light source drive current value, and then to the control of the optic modulating device 205 preheating System is more flexible accurate.
It it is appreciated that can be according to target temperature, the quantity of the unlatching light source unit 212, the driving light source unit Relation between 212 driving current value flexibly sets preheating time section.
It is appreciated that the colour wheel 27 can be optical filtering colour wheel, the optical filtering colour wheel includes at least a filtered region, uses In the light by required wavelength.
It is appreciated that the light supply apparatus 201 includes solid state light emitter, the solid state light emitter is laser diode, luminous two The one or two of pole pipe.
It is appreciated that the light supply apparatus 201 can be omitted the colour wheel 27, the light supply apparatus 101 can be emitted institute Need the light of wavelength.
It is appreciated that the light supply apparatus 201 further includes the one or more in UHP lamps, UHE lamps, metal halid lamp.
It refers to shown in Fig. 3, third embodiment of the invention provides a kind of projector equipment 300, and structure is substantially with first The structure of the projector equipment 100 of embodiment is identical, including light supply apparatus 301, optic modulating device 305, light modulation driving mould Group 306, middle control module 307 and temperature-detecting device 308, it is different in the optic modulating device 305 be provided with it is described in The semiconductor cooler 3051 for the tool heat-production functions that module 307 communicates to connect is controlled, middle control module 307 controls semiconductor cooler 3051 heat-production functions opened to provide the optic modulating device 305 before the optic modulating device 305 is opened heat into Row preheating.The unlatching of optic modulating device 105 refers to that optic modulating device 105 starts to be modulated incident light, by the incident beam modulated As image light.In present embodiment, the semiconductor cooler 3051 is arranged at the back side of the optic modulating device 305.Its The description of his device and corresponding technical solution refer to the above embodiment description.
Temperature-detecting device 308 is used to detect target temperature and feeds back to middle control module 307, in the present embodiment, mesh Mark the environment temperature that temperature is optic modulating device 305.
The middle control module 307 is preset with the first preset temperature.When the target temperature is less than first preset temperature, The temperature of the optic modulating device 305 is less than its start-up temperature, the heat-production functions of middle control module control semiconductor cooler 3051 It is opened.
In another embodiment of the present invention, target temperature can also be the temperature of optic modulating device, at this point, middle control mould Group preset second level temperature, when the target temperature that the judgement of control module detects in the middle is less than the second preset temperature, middle control module Then the heat-production functions of semiconductor cooler are opened.The target for differing only in temperature-detecting device detection of two embodiments Temperature is the own temperature of the environment temperature or optic modulating device residing for optic modulating device, and other technical characteristics can mutually join Examine replacement.
The stage that the heat-production functions for opening the semiconductor cooler 3051 preheat the optic modulating device 305 Referred to as warm-up phase.By the normal operation in operating temperature range of optic modulating device 305, i.e., described 300 energy of projector equipment The stage for being enough normally carried out projection-display image is known as working stage.The working stage is located at, the light source drives module 33 The driving current for being conveyed to the light source 31 is known as operating current.
Further, the projector equipment 300 further includes the fan 310 communicated to connect with the middle control module 307.
When starting the projector equipment 300, the temperature-detecting device 308 detects the target temperature and feeds back to described Middle control module 307.When the middle control module 307 judges that the target temperature is less than first preset temperature, institute is opened in control The heat-production functions of semiconductor cooler 3051 are stated, and then the optic modulating device 305 is preheated.The middle control module 307 Also control starts the fan 310.When the temperature-detecting device 308 detects that the target temperature rises to described first in advance If during temperature, the middle control module 307 controls the light modulation driving module 306 to drive the optic modulating device 305, Jin Erqi Move the optic modulating device 305.Meanwhile the middle control module 307 controls the semiconductor cooler 3051 to close heat-production functions And refrigerating function is opened, to be cooled down to the optic modulating device 305, ensure the environment temperature in the work temperature In the range of degree, and then ensure the reliability that the optic modulating device 305 works.The middle control module 307 controls the light source to drive Dynamic model group 33 enters working stage to 312 transportation work electric current of whole light sources unit, the projector equipment 300.Semiconductor refrigerating The design of device to make use of the original structure of projector equipment, while realizes the function of preheating and refrigeration, saves space, avoids The increase of projector equipment volume, the complexity for reducing design.
In the present embodiment, since the cataclysm of temperature easily causes the micro-structure inside the optic modulating device 305 Damage, therefore, during the optic modulating device 305 is preheated, by controlling the heats power of semiconductor cooler 3051, Control the heating rate of optic modulating device 305.
In yet another embodiment of the present invention, when the semiconductor cooler 3051 is heated by unlatching, institute The unlatching outgoing of the light supply apparatus 301 preheating light can also be controlled by stating middle control module 307, to improve the pre- thermal efficiency.Tune can be passed through The unlatching quantity and/or driving current of the light source unit 312 of the light supply apparatus 301 are saved, it is pre- to adjust the light supply apparatus 301 The light intensity of hot light.
In yet another embodiment of the present invention, when the target temperature reaches first preset temperature, the wind Fan 310, the refrigerating function of the semiconductor cooler 3051, the optic modulating device 305 can be started by control simultaneously, to accelerate Control.
In yet another embodiment of the present invention, when the target temperature reaches first preset temperature, the wind Fan 310, the refrigerating function of the semiconductor cooler 3051, the optic modulating device 305, the light supply apparatus 301 can be simultaneously Started by control, to accelerate to control.
In yet another embodiment of the present invention, when the target temperature reaches first preset temperature, described half The heat-production functions of conductor refrigerator 3051 are closed, the refrigerating function of the semiconductor cooler 3051, the fan 310, described After light supply apparatus 301 is opened simultaneously by control, the optic modulating device 305 is opened.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, and the light supply apparatus 301 is opened in middle control module 307 control.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, and the fan 310, the optic modulating device 305, the light supply apparatus 301 are controlled After system starts simultaneously, the refrigerating function of the semiconductor cooler 3051 is opened.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, after the fan 310, the light supply apparatus 301 are started simultaneously by control, described half The refrigerating function of conductor refrigerator 3051 and the optic modulating device 305 are opened.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, the fan 310, the refrigerating function of the semiconductor cooler 3051 and the light After modulating device 305 is simultaneously activated, the light supply apparatus 301 is opened.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, and the fan 310, the refrigerating function of the semiconductor cooler 3051 are opened simultaneously After dynamic, the light supply apparatus 301 is controlled with the optic modulating device 305 and opened simultaneously.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, after the fan 310, the optic modulating device 305 are simultaneously activated, the light The refrigerating function of source device 301 and the semiconductor cooler 3051 is controlled to be opened simultaneously.
In yet another embodiment of the present invention, the heat-production functions of the semiconductor cooler 3051 and the fan 310 are simultaneously activated, and to accelerate the pre- thermal efficiency, the target temperature reaches first preset temperature and is activated, described partly to lead The heat-production functions of chiller 3051 are closed, the refrigerating function quilt of the light supply apparatus 301 and the semiconductor cooler 3051 Control is opened simultaneously.
In yet another embodiment of the present invention, the target temperature reaches first preset temperature, described partly to lead The heat-production functions of chiller 3051 are closed, and the fan 310 starts, afterwards, the refrigeration of the semiconductor cooler 3051 Function, the light supply apparatus 301, the optic modulating device 305 are opened.
In yet another embodiment of the present invention, the target temperature is preheated reaches first preset temperature, institute The heat-production functions for stating semiconductor cooler 3051 are closed, refrigerating function, the fan of the semiconductor cooler 3051 310th, after the optic modulating device 305 is simultaneously activated, the light supply apparatus 301 is activated.
In yet another embodiment of the present invention, the heat-production functions of the semiconductor cooler 3051 and the fan 310 are opened simultaneously, and the target temperature is preheated to reach the start-up temperature, the heating work(of the semiconductor cooler 3051 It can be closed, the refrigerating function of the semiconductor cooler 3051 is opened, and afterwards, the optic modulating device 305 is opened.
In yet another embodiment of the present invention, the heat-production functions of the semiconductor cooler 3051 are opened, described Target temperature is preheated to reach first preset temperature, and the heat-production functions of the semiconductor cooler 3051 are closed, described Fan 310, the refrigerating function of the semiconductor cooler 3051, the optic modulating device 305 and the light supply apparatus 301 by according to Secondary startup.
It is appreciated that the colour wheel 37 can be optical filtering colour wheel, the optical filtering colour wheel includes at least a filtered region, uses In the light by required wavelength.
It is appreciated that the light supply apparatus 301 includes solid state light emitter, the solid state light emitter is laser diode, luminous two The one or two of pole pipe.
It is appreciated that the light supply apparatus 301 can be omitted the colour wheel 37, the light supply apparatus 301 can be emitted institute Need the light of wavelength.
It is appreciated that the light supply apparatus 301 further includes the one or more in UHP lamps, UHE lamps, metal halid lamp.
In yet another embodiment of the present invention, the temperature-detecting device 308 can be omitted, i.e., does not detect the light The environment temperature of modulating device 305, projector equipment include a storage device, and storage device prestores preheating time of fixed single value Section, the heating duration of semiconductor cooler is preheating time section.For example, the preheating time section is 10 seconds, the middle control Module 307 controls the semiconductor cooler 3051 to open heat-production functions and the optic modulating device 305 is preheated, and is preheating After 10 seconds, the middle control module 307 controls light source driving light source unit 312 transportation work of the module 13 to the light source 31 Electric current Ie, the middle control module 307 control the light modulation driving module 306 to drive the optic modulating device 305.
In yet another embodiment of the present invention, projector equipment is deposited simultaneously including storage device and temperature-detecting device Storage device prestores multiple preheating times section, and the plurality of preheating time section corresponds to different initial target temperatures respectively, when projection is set It is standby when starting, temperature-detecting device primary detection to target temperature be initial target temperature.Middle control module is examined by temperature It surveys device and obtains initial target temperature, it is corresponding to search out the preheating time section to prestore in storage device, so as in the preheating time Control semiconductor cooler opens heat-production functions and optic modulating device is preheated in section.The technical solution can be with different temperature Degree determines the time of preheating, more accurate to the control of preheating, is conducive to the extension of equipment life.
In yet another embodiment of the present invention, the temperature-detecting device 308 can be used for detecting the light modulation The temperature of device 305, the optic modulating device 305 are arranged on the optic modulating device 305, to detect the optic modulating device 305 temperature is simultaneously fed back to the middle control module 307.I.e. target temperature is the temperature of the optic modulating device 305；Initial target When temperature is activated for projector equipment 100, the temperature of the optic modulating device 305 is examined for the first time for the temperature-detecting device 308 The temperature of the optic modulating device 305 measured.The middle control module 307 presets one second preset temperature, and described second is default Temperature is identical with the start-up temperature of the optic modulating device 305.When starting the projector equipment 300, the temperature-detecting device The temperature of the 308 detection optic modulating devices 305 simultaneously feeds back to the middle control module 307.The middle control module 307 judges described When the temperature of optic modulating device 305 is less than second preset temperature, control opens the light supply apparatus 301 so that the light source 301 emergent light of device, and then the optic modulating device 305 is preheated.Described in being detected when the temperature-detecting device 308 When environment temperature rises to second preset temperature, the middle control module 307 controls the light modulation driving module 306 to drive The optic modulating device 305, and then start the optic modulating device 305.
In yet another embodiment of the present invention, projector equipment includes storage device, and storage device prestores multiple preheatings Period, the multiple preheating time section correspond to different initial target temperatures respectively, and the initial target temperature is the throwing When shadow equipment starts, target temperature that the temperature-detecting device primary detection arrives；The middle control module is additionally operable to described in control Semiconductor cooler opens the heat-production functions in the corresponding preheating time section of the initial target temperature.
The present invention also provides a kind of startup method of optic modulating device, applied in projector equipment, referring to Fig. 4, it is wrapped Include following steps：
Step 401, preheat：It is filled by the light supply apparatus input preheating light of projector equipment with providing heat to the light modulation It puts and is preheated.
Step 402, the optic modulating device is started.
It is appreciated that the preheating time section preheated to the optic modulating device is fixed value.The technical solution can be with The storing excess data in the memory of projector equipment are avoided, simplify programming；And the preheating time of setting fixed value Section is conducive to preheating time section caused by avoiding program error and mismatches the optic modulating device brought with optic modulating device temperature Damage.
In another change embodiment, referring to Fig. 5, the startup method of the optic modulating device, including walking in detail below Suddenly：
Step 501, temperature detection：When detect the environment temperature residing for the optic modulating device be less than the first preset temperature When, then perform the preheating step；
In present embodiment, preheating time section is set according to the environment temperature residing for the optic modulating device detected.
Step 502, by the light supply apparatus of projector equipment input preheating light with provide heat to the optic modulating device into Row preheating, so that the temperature of the optic modulating device is improved to the start-up temperature of the optic modulating device.
Step 503, the optic modulating device is started.
In another change embodiment, referring to Fig. 6, the startup method of the optic modulating device, including walking in detail below Suddenly：
Step 601, temperature detection：When the temperature for detecting the optic modulating device is less than the second preset temperature, then hold The row preheating step.
Step 602, preheated by semiconductor cooler heating to provide heat to the optic modulating device, so that institute The temperature for stating optic modulating device is improved to the start-up temperature of the optic modulating device.
In present embodiment, according to the temperature setting preheating time section for detecting the optic modulating device.
Step 603, the optic modulating device is started.
In the present embodiment, light supply apparatus includes multiple light sources unit, in the preheating step, further includes and passes through control The unlatching quantity of multiple light sources unit processed is come the step of adjusting the preheating light light intensity of the light supply apparatus.
In another embodiment of the present invention, light supply apparatus includes light source and drives the light source driving module of light source, In preheating step, further include and module is driven to be conveyed to the driving current of light source by adjusting light source to adjust the preheating of light supply apparatus The step of light light intensity.
In another embodiment of the present invention, light supply apparatus includes light source and drives the light source driving module of light source, light Source includes multiple light sources unit, in preheating step, further includes while by adjusting light source module is driven to be conveyed to light source unit Driving current and control multiple light sources unit unlatching quantity come adjust light supply apparatus preheating light light intensity the step of.
Compared with prior art, the startup method and projector equipment of optic modulating device provided by the invention, passes through light source Device inputs luminous energy or provides heat to the optic modulating device by semiconductor cooler heating and preheats, and then can make The optic modulating device normally starts, and extends the service life of the optic modulating device and the projector equipment and improves work Make reliability.
It is understood that those skilled in the art can also do other variations etc. in spirit of the invention is used in the present invention's Design, without departing from the technique effect of the present invention.These variations done according to present invention spirit should be all included in Within scope of the present invention.

Claims (15)

1. a kind of startup method of optic modulating device applied to projector equipment, including step：
Preheating：It is preheated by the light supply apparatus input preheating light of projector equipment with providing heat to the optic modulating device；
Start the optic modulating device.
2. a kind of projector equipment, including：
Light supply apparatus, to emergent light；
For receiving picture signal, image modulation running, the light supply apparatus are carried out according to described image signal for optic modulating device On the light projection of outgoing to the optic modulating device, formed under the action of described image modulation running from the optic modulating device The image light corresponding with described image signal of outgoing,
Middle control module is communicated to connect with the light supply apparatus, which is characterized in that the middle control module is used to that the light source to be controlled to fill The outgoing preheating light before the optic modulating device is opened is put, is preheated with providing heat to the optic modulating device.
3. projector equipment as claimed in claim 2, which is characterized in that the light supply apparatus is described including light source and for driving The light source driving module of light source, the light source driving module are connected with the middle control module, and the light source includes multiple light sources list Member；
When being preheated to the optic modulating device, the unlatching number of the multiple light source unit is controlled by the middle control module It measures to adjust the light intensity for preheating light that the light source is emitted；
And/or control the light source that module is driven to be conveyed to the driving current of the light source to adjust by the middle control module The light intensity of the preheating light of the light source outgoing.
4. projector equipment as claimed in claim 2, which is characterized in that the projector equipment further includes storage device, described to deposit Storage device prestore fixed single value preheating time section, when a length of institute that the light supply apparatus preheats the optical modulator State preheating time section.
5. projector equipment as claimed in claim 2, which is characterized in that the projector equipment further includes temperature-detecting device, uses In detection target temperature and the middle control module is fed back to, the middle control module judges whether to control institute according to the target temperature State light supply apparatus outgoing preheating light；
The target temperature is the environment temperature of the optic modulating device or the temperature of the optic modulating device.
6. projector equipment as claimed in claim 5, which is characterized in that the middle control module controls the light supply apparatus outgoing The light intensity of light is preheated, so as to light intensity and the target temperature correlation of the preheating light or make the preheating light Light intensity increases with the increase of the target temperature in staged.
7. projector equipment as claimed in claim 5, which is characterized in that the target temperature is residing for the optic modulating device Environment temperature, the middle control module preset the first preset temperature, when the middle control module judges the target temperature less than described During the first preset temperature, then the light supply apparatus outgoing preheating light is opened in the middle control module control；
Alternatively, the target temperature is the temperature of the optic modulating device, the middle control module preset second level temperature works as institute When stating the middle target temperature that detects of control module judgement and being less than second preset temperature, then the middle control module control is opened Open the light supply apparatus outgoing preheating light.
8. projector equipment as claimed in claim 5, which is characterized in that the projector equipment further includes storage device, described to deposit Storage device prestores multiple preheating times section, and the multiple preheating time section corresponds to different initial target temperatures respectively, described first When beginning target temperature starts for the projector equipment, target temperature that the temperature-detecting device primary detection arrives.
9. projector equipment as claimed in claim 5, which is characterized in that the projector equipment further includes storage device, the light Source device, which includes light source and light source driving module, the light source, includes multiple light sources unit, and the storage device prestores multiple Target temperature, the multiple target temperature correspond to the unlatching quantity of different the multiple light source units and/or the light respectively Source driving module is conveyed to the driving current of the light source；
The target temperature that the middle control module detects in real time according to the temperature-detecting device, controls the target temperature pair in real time The unlatching quantity for the multiple light source unit answered and/or light source driving module are conveyed to the driving current of the light source, To adjust the light intensity of the preheating light of the light source outgoing；Or
The middle control module according to the temperature-detecting device target temperature that primary detection arrives when the projector equipment starts, Control the unlatching quantity of the corresponding the multiple light source unit of the target temperature and/or light source driving module be conveyed to it is described The driving current of light source, to adjust the light intensity of the preheating light of the light source outgoing.
10. a kind of projector equipment, including：
Light supply apparatus, to emergent light；
For receiving picture signal, image modulation running, the light supply apparatus are carried out according to described image signal for optic modulating device On the light projection of outgoing to the optic modulating device, formed under the action of described image modulation running from the optic modulating device The image light corresponding with described image signal of outgoing,
Light modulation drives module, for driving the optic modulating device,
Middle control module, with light modulation driving module communication connection, which is characterized in that the optic modulating device includes semiconductor Refrigerator, the middle control module are used to control the heat-production functions of the semiconductor cooler quilt before optic modulating device unlatching It opens and is preheated with providing heat to the optic modulating device.
11. projector equipment as claimed in claim 10, which is characterized in that the projector equipment further includes storage device, described Storage device prestores the preheating time section of fixed single value, a length of preheating time during the heating of the semiconductor cooler Section.
12. projector equipment as claimed in claim 10, which is characterized in that the projector equipment further includes temperature-detecting device, For detecting target temperature and feeding back to the middle control module,
The target temperature is the environment temperature of the optic modulating device or the temperature of the optic modulating device；
When the target temperature is the environment temperature residing for the optic modulating device, the middle control module presets the first default temperature Degree, when the middle control module judges the target temperature less than first preset temperature, then the semiconductor cooler Heat-production functions are opened；
Alternatively, when the target temperature is the temperature of the optic modulating device, the middle control module preset second level temperature, when When the middle target temperature that detects of control module judgement is less than second preset temperature, then the semiconductor cooler Heat-production functions opened.
13. projector equipment as claimed in claim 12, which is characterized in that the projector equipment further includes storage device, described Storage device prestores multiple preheating times section, and the multiple preheating time section corresponds to different initial target temperatures respectively, described When initial target temperature starts for the projector equipment, target temperature that the temperature-detecting device primary detection arrives；
The middle control module is additionally operable to control the semiconductor cooler in the corresponding preheating time section of the initial target temperature It is interior to open the heat-production functions.
14. projector equipment as claimed in claim 10, which is characterized in that the projector equipment further includes fan, the fan It is opened when the heat-production functions of the semiconductor cooler are being opened；
Alternatively, the fan is opened when the optic modulating device is opened.
15. projector equipment as claimed in claim 10, which is characterized in that the light supply apparatus is in the semiconductor cooler Heat-production functions open up in the period before being closed by open be emitted preheating light.
CN201611005513.7A 2016-11-15 2016-11-15 The startup method of optic modulating device and dependent projections equipment Pending CN108073018A (en)

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CN201611005513.7A CN108073018A (en) 2016-11-15 2016-11-15 The startup method of optic modulating device and dependent projections equipment
PCT/CN2017/105807 WO2018090764A1 (en) 2016-11-15 2017-10-12 Method of starting optical modulation device, and associated projection apparatus

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Application Number Priority Date Filing Date Title
CN201611005513.7A CN108073018A (en) 2016-11-15 2016-11-15 The startup method of optic modulating device and dependent projections equipment

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Cited By (3)

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CN113382217A (en) * 2020-02-25 2021-09-10 青岛海信激光显示股份有限公司 Laser television

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CN111443556A (en) * 2019-01-16 2020-07-24 中强光电股份有限公司 Projector and focal length adjusting method thereof
CN111443556B (en) * 2019-01-16 2021-10-15 中强光电股份有限公司 Projector and focal length adjusting method thereof
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