CN101025557A - Projector - Google Patents
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- CN101025557A CN101025557A CN 200710078711 CN200710078711A CN101025557A CN 101025557 A CN101025557 A CN 101025557A CN 200710078711 CN200710078711 CN 200710078711 CN 200710078711 A CN200710078711 A CN 200710078711A CN 101025557 A CN101025557 A CN 101025557A
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Abstract
Provided is a projector which can perfectly cool a plurality of heating parts without noise. The projector changes the direction of plural fan leaf of the persiennes as distributing part based on the drive electric power (brightness) of the light source, thus it distributes the cooling wind generated by fans to the cooling wind of the electric power and the cooling wind of the light drive part. Moreover, it may restrain the cooling total cooling wind quantity generated by fans and reduce the rotate speed of the fans owing to the balance optimization of the cooing wind of the electric power and the cooling wind of the light drive part, in which the temperature characteristics of the electric power and light drive part is consistent.
Description
Technical field
The present invention relates to amplify the projector of projects images, particularly the technology of the heating position of cooling projector inside.
Background technology
With discharge lamps such as high-pressure mercury-vapor lamp, metal halide lamps is light source, the light that light source produces is modulated according to picture signal by optical modulation element, and it is well-known that the light modulated of the presentation video modulated is amplified the projector of projection.Inside in such projector has a plurality of heating positions.Specifically, the discharge lamp as light source is arranged, this discharge lamp is lighted and the lamp drive division of the state that maintainings lights, optical modulation elements such as through mode liquid crystal light valve are to power supply unit of projector's each several part supply capability etc.In addition, proposed to possess the projector of a plurality of fans as cooling device for the temperature that do not make these heating positions surpasses separately rated temperature.
For example, light source, optical modulation element, lamp drive division and the power supply unit of the liquid crystal 3 board-like projectors of patent documentation 1 possess the fan of special-purpose cooling usefulness respectively.Particularly, for optical modulation element, each all has the fan of special-purpose cooling usefulness the liquid crystal light valve that red, green, blue coloured light is used, and adds up to be provided with 3 fans.In addition, comprise the air that is used for described a plurality of fans are blowed, have been heated at each heating position, add up to possess 7 cooling fans to the outside large-scale fan of discharging of projector.
Fig. 8 is the approximate vertical view based on the cooling structure of in the past projector.
But, if 1 projector possesses 7 fans, have then that not only part count is many, cost is high, and noise consumes also problem of higher of electric power greatly, in addition.The projector 200 of Fig. 8 designs in order to solve such problem points.
By these structures, though projector 200 has reduced number of fans, can carry out necessary cooling, and then realize noise and the reduction that consumes electric power.
In addition, projector 200 is set as and can sets and throw the corresponding to a plurality of color modes of environment, and adjusts the brightness of light source portion 5 according to selected color mode.In color mode, for example has the theater mode that is suitable for appreciating the deep image of performance at the dynamic mode of bright indoor audiovisual, under the environment that illumination is dimmed, when selecting dynamic mode, the driving electric of the discharge lamp 1 of rising light source portion 5, thus improved brightness.Equally, when selecting theater mode, reduce the driving electric of discharge lamp 1, thereby reduced brightness.
Like this, owing to change to the selection according to color mode of the electric power quantity delivered of discharge lamp 1, so the degree of heat of power supply unit 40 and lamp drive division 45 also changes.Therefore, the rotating speed of fan F4 is changed according to color mode, suitably cool off power supply unit 40 and lamp drive division 45.
Patent documentation 1: the spy opens the 2000-221599 communique
But, in projector 200 in the past, owing to be thereby that air quantity with 1 fan F4 distributes cooling power supply unit 40 and lamp drive division 45 about equally, so if having temperature difference at power supply unit 40 and lamp drive division 45, then must be according to temperature higher side drive fan F4.Therefore, the rotating speed that has fan F4 rises, the problem that noise and driving electric increase.
Fig. 9 is that expression is corresponding with the driving electric (brightness) of the light source portion of in the past projector, the curve map of the temperature regime of power supply unit and lamp drive division etc.
In curve map g, transverse axis is represented the driving electric (brightness) of discharge lamp 1, the temperature of the longitudinal axis (left side) expression power supply unit 40 and lamp drive division 45, the driving voltage of the longitudinal axis (right side) expression fan F4.In addition, the broken line graph of solid line and dotted line is represented the temperature variation of power supply unit 40 and lamp drive division 45 respectively.The driving voltage of histogram graph representation fan F4.In addition, because the driving electric of discharge lamp 1 and brightness have proportionate relationship, driving voltage and the air quantity of fan F4 have proportionate relationship, thus can be with the driving electric of discharge lamp 1 as brightness, with the driving voltage of fan F4 as air quantity.
Selected theater mode, when becoming low-light level, the temperature of lamp drive division 45 becomes than power supply unit 40 height, so fan F4 is benchmark and the rotation down of definite driving voltage (7.5V) at the necessary air quantity of cooling air W2 with the higher lamp drive division 45 of temperature.In addition, selected dynamic mode, when becoming high brightness, the temperature of power supply unit 40 becomes than lamp drive division 45 height, so fan F4 is benchmark and the rotation down of definite driving voltage (9V) at the necessary air quantity of cooling air W1 with the higher power supply unit 40 of temperature.
In addition, thereby because for effectively near the air-breathing outer package face that fan F4 is arranged on projector 200 in outside, so compare with fan F2, the F3 etc. that are positioned at projector inside, though install in the enclosure via membrane filter (figure does not show), be easy to the external leakage operating noise.
In addition, why inversely proportional with the driving electric of discharge lamp 1 temperature characterisitic of lamp drive division 45 is, be that character by discharge lamp 1 causes, the character of described discharge lamp 1 is: even suppressed the light quantity of discharge lamp 1 by driving voltage is descended, but for maintaining lights, promptly in order to keep discharge condition, must have comprise the loss electric power in interior certain electric power amount.Therefore, even driving voltage is descended, the load of lamp drive division 45 can not reduce much yet.And then though can guarantee to cool off necessary air quantity, owing to become low-light level, so the driving voltage of fan F4 descends, the air quantity of cooling air W2 reduces, this also is an one of the main reasons.
Like this, in projector 200 in the past, because by being that the driving voltage of benchmark cools off power supply unit 40 and the lamp drive division 45 with different temperature characterisitics with the temperature higher side, so noise is bigger, energy utilization efficiency is unexcellent in addition.
Summary of the invention
For solving above-mentioned problem, the projector of the object of the present invention is to provide a kind of operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(1) for realizing above-mentioned purpose, projector of the present invention is characterized in that, comprising: luminous light source portion; Supply with the lamp drive division of driving electric to described light source portion; At least to the power supply unit of described lamp drive division supply capability; Make the fan of cooling air in described lamp drive division and the circulation of described power supply unit; The air quantity of the cooling air that will be produced by described fan is distributed to described lamp drive division and described power supply unit, and can change the dispenser of the air quantity of the cooling air of distributing to described lamp drive division and described power supply unit; With according to being supplied to the driving electric of described light source portion, the described dispenser of drive controlling, the distribution control part that the air quantity of the cooling air of distributing to described lamp drive division and described power supply unit is changed.
(with reference to Fig. 9) as previously mentioned, the heat generation characteristic of power supply unit express and the roughly proportional characteristic of the driving electric of light source portion, and the temperature characterisitic of lamp drive division is expressed and the roughly inversely proportional characteristic of the driving electric of light source portion.Therefore, when the driving electric of light source portion is low, distribute to the air quantity of lamp drive division, just can reduce the rotating speed of fan by increase.Equally, when the driving electric of light source portion is higher, distribute to the air quantity of power supply unit, just can reduce the rotating speed of fan by increase.
According to this structure, distribute control part according to the driving electric drive controlling dispenser of supplying with light source portion, the air quantity of the cooling air of distributing to lamp drive division and power supply unit is changed, so can consistently the most suitably distribute the air quantity of the cooling air that produces by fan with the temperature characterisitic of power supply unit and lamp drive division.
Thus, because the rotating speed of fan is descended,, can cut down consumption electric power simultaneously so noise level is reduced.
The projector of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(2) according to projector of the present invention, preferably, the described dispenser of described distribution control part drive controlling makes the big more air quantity that then increases the cooling air be assigned to described power supply unit more of described driving electric.
According to this structure, distribute control part with the driving electric big more (high more) of light source portion, the mode drive controlling dispenser of getting over the air quantity that increases the cooling air of distributing to power supply unit.In other words, distribute control part with the driving electric more little (low more) of light source portion, increase the mode drive controlling dispenser of the air quantity of distributing to the lamp drive division more.That is, distribute control part, judge the temperature regime of lamp drive division and power supply unit from the driving electric amount of light source portion, and under each driving electric amount, increase the air quantity of the cooling air of supplying with to the position that temperature raises with correlationship.
Therefore,, also can effectively utilize total blast volume, guarantee necessary cooling power even the rotating speed of fan descends.And then, because the rotating speed of fan is descended,, cut down simultaneously and consume electric power so can reduce noise level.
The projector of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(3) according to projector of the present invention, preferably, described lamp drive division and described power supply unit are adjacent to configuration; Described fan and described lamp drive division and described power supply unit relatively dispose; Described dispenser is to have a plurality of flabellums, be configured in the window shutter between described lamp drive division and described power supply unit and the described fan, by changing the direction of these a plurality of flabellums, can change the air quantity of described cooling air.
According to this structure, because dispenser is the window shutter with a plurality of flabellums, so, can change the air quantity of the cooling air of distributing to lamp drive division and power supply unit by changing the direction of these a plurality of flabellums.
Therefore, can provide projector simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(4) according to projector of the present invention, preferably, described lamp drive division and described power supply unit are adjacent to configuration; Described fan and described lamp drive division and described power supply unit relatively dispose; Described dispenser is the rotary electric magnetic cell that changes the posture of described fan, by driving this rotary electric magnetic cell, can change the air quantity of described cooling air.
According to this structure, because dispenser is the rotary electric magnetic cell, so, can change the air quantity of the cooling air of distributing to lamp drive division and power supply unit by driving this rotary electric magnetic cell.
Therefore, can provide projector simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(5) according to projector of the present invention, preferably, described lamp drive division and described power supply unit are adjacent to configuration; Described fan is with described lamp drive division and described power supply unit is relative disposes to ground; Described dispenser is to make the position of described fan along the linear actuators that the face relative with described lamp drive division and described power supply unit moves, and by driving this linear actuators, can change the air quantity of described cooling air.
According to this structure, because dispenser is a linear actuators, so, can change the air quantity of the cooling air of distributing to lamp drive division and power supply unit by driving linear actuators.
Therefore, can provide projector simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(6) according to projector of the present invention, preferably, described lamp drive division and described power supply unit are adjacent to configuration; Described fan and described lamp drive division and described power supply unit relatively dispose; Described dispenser be configured between described lamp drive division and described power supply unit and the described fan, the dividing plate of the size of the ventilating opening by moving, change described fan along the face relative with described lamp drive division and described power supply unit, by this dividing plate is moved, can change the air quantity of described cooling air.
According to this structure, because dispenser is a dividing plate, so, can change the air quantity of the cooling air of distributing to lamp drive division and power supply unit by this dividing plate is moved.
For example, when the part of the ventilating opening of the position of dividing plate being arranged to make the fan relative with the lamp drive division is bigger than the part of the ventilating opening relative with power supply unit, a part of distributing to the cooling air of power supply unit is distributed to the lamp drive division.Thus, the air quantity of the cooling air of distributing to the lamp drive division is increased.On the other hand, when the part of the ventilating opening of the position of dividing plate being arranged to make the fan relative with power supply unit is bigger than the part of the ventilating opening relative with the lamp drive division, a part of distributing to the cooling air of lamp drive division is distributed to power supply unit.Thus, the air quantity of the cooling air of distributing to power supply unit is increased.
Therefore, can provide projector simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(7) projector of the present invention preferably includes: the fan that cools off described light source portion; The fan that the modulating sections that will become the light modulated of presentation video from the optical modulation of described light source portion is cooled off; With will blow, take away the fan that the air of the heat of described each one is discharged to the outside by a plurality of described fans.
As previously mentioned, the main heating position of projector is light source portion, modulating sections, power supply unit and lamp drive division.
According to this structure, in projector, possess the fan that blows cooling air to lamp drive division and power supply unit, blow the fan of cooling air to light source portion, these main heating positions of modulating sections, fan with the air of the heat that will capture each several part is discharged to the outside adds up to 4 fans at least.
Therefore, different with the projector of the patent documentation 1 of 7 cooling fans of needs, projector of the present invention can pass through 4 fans, can be that projector's integral body is cooled off at the center efficiently with main heating position just.In addition, the fan of cooling power supply unit and lamp drive division makes by dispenser distributes to this two-part air quantity optimization, so can suppress rotating speed, reduces noise.
The projector of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
Description of drawings
Fig. 1 is the summary construction diagram of the projector of embodiment 1;
Fig. 2 is based on the optical system of projector and the approximate vertical view of cooling structure;
The figure of a mode of the dispenser when Fig. 3 (a) is expression low-light level setting, the figure of a mode of the dispenser when (b) being the setting of expression high brightness;
Fig. 4 is that expression is corresponding with the driving electric (brightness) of the light source portion of projector of the present invention, the curve map of the temperature regime of power supply unit and lamp drive division etc.;
The figure of another mode of the dispenser when Fig. 5 (a) is expression low-light level setting, the figure of another mode of the dispenser when (b) being the setting of expression high brightness;
The figure of another mode of the dispenser when Fig. 6 (a) is expression low-light level setting, the figure of another mode of the dispenser when (b) being the setting of expression high brightness;
Fig. 7 is the side view of another mode of dispenser;
Fig. 8 is the approximate vertical view based on the cooling structure of in the past projector;
Fig. 9 is that expression is corresponding with the driving electric (brightness) of the light source portion of in the past projector, the curve map of the temperature regime of power supply unit and lamp drive division etc.;
Figure 10 is the side view of another mode of the dispenser of embodiment 3.
Label declaration
1... discharge lamp as light source
5... light source portion
23R, 23G, 23B... are as the liquid crystal light valve of optical modulation element
30... modulating sections
40... power supply unit
45... lamp drive division
51... control part
60... fans drive portion
61... distribution adjustment part
62... window shutter (vent window) as dispenser
72... R electromagnetic component as dispenser
82... linear actuators as dispenser
92... dividing plate as dispenser
100... projector
F1～F5... fan
Wa, W1, W2... cooling air
Embodiment
Below, based on accompanying drawing embodiments of the present invention are described.
(embodiment 1)
The schematic configuration of projector
Fig. 1 is the summary construction diagram of the projector of embodiments of the present invention 1.Here, the schematic configuration to projector 100 describes.In addition, for relatively, be marked with same numeral for the position identical and describe with projector 200 in the past.
In picture signal handling part 52, comprising the picture signal from 350 inputs of external image signal feedwaies such as personal computer is image converter, route marker (ス ケ one ラ) and the frame memory (frame memory) (all not shown) etc. of digital signal from analog signal conversion.
Picture signal handling part 52 carries out the AD conversion by image converter to the analog picture signals such as analog rgb signal, sub-signal of input, implements ratiometric conversion Flame Image Process such as (ス ケ one リ Application グ) then.
Picture signal handling part 52, to write frame memory with the resolution that this picture signal was had with each coloured light of RGB by the image that picture signal is represented, thereby and convert to and can read by the resolution that liquid crystal light valve 23R, 23G, 23B show, generate the picture signal that is suitable for this liquid crystal light valve thus.In addition, be used to make the shape that is incident upon the effective image on the screen SC to handle with ratiometric conversion near the keystone of rectangle.
Liquid crystal panel drive division 53 is liquid crystal panel drivers, supplies with picture signal and the driving voltage of having implemented Flame Image Process to liquid crystal light valve 23R, 23G, 23B, drives this liquid crystal light valve.
In this program, comprise: according to selected color mode adjustment to the dimmer procedure of the driving electric of discharge lamp 1 and with dimmer procedure synchronously, adjust the fan control program etc. of the direction of the driving voltage of fan F4 and window shutter 62.In addition, in attached data, comprise: to the driving electric to discharge lamp 1 of each color mode regulation, the driving voltage of each fan, and the driving data of window shutter 62, parameter etc.
Operating portion 56 is set on the body upper surface of projector 100, possesses a plurality of operations button (not shown) that is used to operate projector 100.Comprise in a plurality of operations: be used to " power knob " that start and close projector 100 with button, be used to show " menu button " of various actions menus, be used for selecting " directionkeys " that to select up and down of desired procedure and being used to carry out " confirming button " of the operation of selection from actions menu.
In addition, in actions menu, comprise " color mode setting " project that is used to select a plurality of color modes of being provided with according to the projection environment.In color mode, comprise being suitable at the dynamic mode of bright indoor audiovisual and under the environment that illumination is dimmed, appreciating the theater mode of the deep image of performance.
When selecting theater mode, the 1st driving electric when on discharge lamp 1, applying low-light level.In addition, when selecting dynamic mode, the 2nd driving electric when applying than the big high brightness of the 1st driving electric.The dynamic mode that is initially set the high brightness under the 2nd driving electric of the color mode of projector 100.
When the operation of carrying out operating portion 56 or telepilot 57, operation acceptance portion 58 accepts this operation, the operation signal that sends as the triggering (trigger) of exercises to control part 51.
In addition, power supply unit 40 is heating positions, and this is because based on the relation in power conversion efficiency, the electric power that is not converted into effective output voltage becomes heat.
In addition, lamp drive division 45 is identical with power supply unit 40, is heating position also.In addition, on the characteristic of discharge lamp 1,,, comprise the certain electric power amount of loss electric power needs, so the few of variation of thermal value in order to keep discharge condition even the time to this lamp light modulation.
As mentioned above, the main heating position of projector 100 is light source portion 5, modulating sections 30 (Fig. 2), power supply unit 40 and lamp drive division 45.In projector 100, power supply unit 40 and lamp drive division 45 are adjacent to configuration, so if regard 1 position as, then have the fan F1～F4 of special-purpose cooling usefulness by each position.
Fan F1 is multiple-blade (Xi Luoke) fan that is used for blowing to light source portion 5 cooling air.Fan F2, F3 are the multi blade fans that is used for blowing to the modulating sections 30 (Fig. 2) of optical unit 35 cooling air.In addition, the cooling fan of modulating sections 30 is not limited to 2.For example, also can be the structure of 1 fan, also can possess and liquid crystal light valve 23R, 23G, each corresponding 3 fan of 23B.
Fan F4 relatively disposes with power supply unit 40 and lamp drive division 45, is the aerofoil fan that is used for blowing to power supply unit 40 and lamp drive division 45 cooling air.
Fan F5 is used for aerofoil fan that the air of having taken away the heat of each heating position is discharged to the outside.In addition, to narrations in the back such as the concrete configurations of fan F1～F5.
Fans drive portion 60 is according to the control signal from control part 50, and rotation drives the driving circuit of attached fan F1～F5 respectively.Driving circuit is for example by 5 passage DA converters of band output buffering operational amplifier with produce and 54 terminal regulators (all not shown) formation to the corresponding driving voltage of adjustment voltage of each passage output of DA converter.The DA converter, according to from the regulation of control part 51 input the adjustment data of driving voltage of each fan F1～F5, export corresponding adjustment voltage from each passage respectively to each 4 terminal regulator.In addition, the structure of driving circuit is not limited to said structure.For example, also can be to replace regulator and the structure of using the DC/DC converter.
Distributing adjustment part 61, is the driving circuit that comprises the electromagnetic component (solenoid) of on-off element such as power transistor, drives rotary electric magnetic cell 65 described later according to the driving pulse from control part 51.
In addition, in the present embodiment, distribute control part to constitute by control part 51 and distribution adjustment part 61.
As unique point of the present invention is the window shutter 62 of dispenser, is set on the air-supply face of fan F4, the attached rotary electric magnetic cell 65 (Fig. 3) that is useful on the direction that changes a plurality of flabellums 63 (Fig. 2).
The summary of optical unit
Fig. 2 is based on the optical system of projector of the present invention and the approximate vertical view of cooling structure.Here, using Fig. 2, is that the optical system at center describes to the optical unit 35 with projector 100.
Fly lens 6 has the lenslet of observing the profile with essentially rectangular shape from light source portion 5 directions and is arranged in rectangular structure, forms 2 in pairs.Each paired lenslet will be divided into segment beam from the light beam that light source portion 5 penetrates, and penetrate to optical axis direction.The a plurality of light source pictures that penetrate from each lenslet pass through via 2 condenser lenses 8 imaging on liquid crystal light valve 23R, 23G, 23B face respectively.Thus, make illuminance distributionization on liquid crystal light valve 23R, 23G, the 23B face.
Polarization conversion device 7, (Polarization Beam Splitter: formation such as array and 1/2 wavelength plate polarization beam apparatus) converts random polarization to specific rectilinearly polarized light by PBS.Specific rectilinearly polarized light, be the polarized light that can inject the incident polarization plate (not shown) on the plane of incidence that is arranged on each liquid crystal light valve, thus can with when not having polarization conversion device 7, can't see through the incident polarization plate and apply flexibly effectively as the light that heat waste is fallen.
Light from light source portion 5 penetrates by 2 fly lenses 6, polarization conversion device 7 and condenser lens 8, by catoptron 9 reflections, penetrates from split-optics 14 1 sides via condenser lens 8 then.In addition, uniform illumination system 10 near the light source portion 5 as thermal source, can produce certain heat sometimes, so preferably with light source portion 5 coolings.
Split-optics 14 comprises dichronic mirror 12 and dichronic mirror 13.
Relay optical system 19 is made of 17,2 catoptrons 18 of 2 relay lenss etc.
See through the B light of dichronic mirror 13,,, and then,, by 20 parallelizations of parallelization lens, inject liquid crystal light valve 23B then by catoptron 18 reflections through relay lens 17 by catoptron 18 reflections through relay lens 17.2 relay lenss 17 are to be provided with by the decay of the B light of long light path in order to prevent in isolated 3 coloured light.
Modulating sections 30 is made of with liquid crystal light valve 23R, 23G, 23B and cross colour splitting prism 29 etc. each coloured light.
Liquid crystal light valve 23R, 23G, 23B are configured in the face of forming roughly 3 faces of the cross colour splitting prism 29 of cube shaped.The plane of incidence of the light of each liquid crystal light valve is provided with the incident polarization plate, and the outgoing plane of facing the light of cross colour splitting prism 29 is provided with and penetrates polarization plates (all not shown).In addition, penetrating polarization plates also can be the structure that sticks in advance on each face of cross colour splitting prism 29.
Though the polarization direction is because polarization conversion device 7 and unanimity, the wide incident polarization plate that causes incident is vertically understood owing to the light that can't see through generates heat.In addition, similarly, on liquid crystal light valve 23R, 23G, 23B and ejaculation polarization plates, also can produce heat, also become heating position so comprise the modulating sections 30 with the cross colour splitting prism 29 that penetrates the polarization plates fluid-tight engagement.
Liquid crystal light valve 23R, 23G, 23B are active matrix (active matrix) the type liquid crystal display cells that possesses with the corresponding a plurality of pixels of resolution.
Inject each coloured light of liquid crystal light valve 23R, 23G, 23B, be modulated into the light modulated of all kinds of the optical imagery that includes each coloured light, and in cross colour splitting prism 29, penetrate respectively.
Cross colour splitting prism 29 as combining optical, form the structure that 4 right-angle prisms are bonded, inner X word shape be provided with as the dichroic coating 27 of the dielectric multilayer film of reflection B light with as the dichroic coating 28 of the dielectric multilayer film of reflection R light.
Cross colour splitting prism 29, light modulated from the green of liquid crystal light valve 23G is seen through, to the reflection of each green light modulated from the light modulated of the redness of liquid crystal light valve 23R with from the light modulated of the blueness of liquid crystal light valve 23B, and make them overlapping, the light modulated that contains with trichromatic light modulated the image of the whole colors after synthetic is penetrated to projection lens 50.
From the light modulated that cross colour splitting prism 29 penetrates, be projection lens 50 by the Pantoscopic zoom lens that multi-disc combination of lensess such as Gaussian type are got up to form, be exaggerated as the image of whole colors and be incident upon on the screen.
The summary of cooling structure
Here, then use Fig. 2, the cooling structure of projector 100 is described.
In addition, the arrow of the solid line of Fig. 2 is represented the runner of cooling air.
Cooling fan F1～F4 is arranged on each main heating position of projector 100.Main heating position has light source portion 5, modulating sections 30, power supply unit 40 and lamp drive division 45.
Fan F1 is arranged on the multi blade fan of the downside (z axle positive dirction) of uniform illumination system 10, air entry from the bottom surface that is arranged on projector 100 sucks air via membrane filter (all not shown), is the center, also carries out blowing of cooling air near fly lens 6 and polarization conversion device 7 with light source portion 5 from downside.
Fan F2, F3 make air outlet towards modulating sections 30 1 sides, and are configured in respectively on the side of projection lens 50.Fan F2, F3, the air entry suction air from the bottom surface identical with fan F1 integrally carries out blowing of cooling air from following side direction modulating sections 30.
Fan F1～F3, effectively utilize projector 100 thickness direction (z direction of principal axis) thus the space cool off each heating position.Thereby the heated air of the heat that absorbs each heating position by fan F5 one side that the exhaust of leading is respectively used, is discharged to the outside of projector 100.
Fan F4 is an aerofoil fan, and the suction face 40d, the 45d that are configured to the power supply unit 40 of adjacent setting and lamp drive division 45 are relative with air-supply face F4j.
The suction face F4i of fan F4 is in the face of the air entry (not shown) on the back (y axle negative direction) that is arranged on projector 100.In addition, on air entry, be provided with the filtrator (not shown) that dust suction is used.
Between suction face 40d, the 45d of fan F4 and power supply unit 40 and lamp drive division 45, be provided with window shutter 62 as feature of the present invention.
The cooling air Wa that fan F4 blows according to the direction of a plurality of flabellums 63, is assigned to the cooling air W1 of power supply unit 40 and the cooling air W2 of lamp drive division 45.
Cooling air W1 and cooling air W2 absorb the heat of power supply unit 40 and lamp drive division 45 respectively, are directed to fan F5 one side that exhaust is used then, discharge to the outside of projector 100.
The form of dispenser
The figure of a mode of the dispenser when Fig. 3 (a) is expression low-light level setting, the figure of a mode of the dispenser when (b) being the setting of expression high brightness.
Here, the form for as the window shutter 62 of unique point of the present invention is the center with Fig. 3 (a) and (b), and suitably describes in conjunction with Fig. 1.
When selecting the operation of theater mode by telepilot 57, carry out the dimmer procedure of reservoir 54, supply with the 1st driving electric from lamp drive division 45 to discharge lamp 1, become the low-light level state.In addition, synchronously carry out the fan control program, the driving voltage by fans drive portion 60 reduces fan F4 sends driving pulses to distribution adjustment part 61.
Distribute adjustment part 61 to drive the rotary electric magnetic cell 65 of window shutter 62 according to driving pulse.When driven in rotation formula electromagnetic component 65, be connected the rotating band 64 on this rotary electric magnetic cell and be connected a plurality of flabellums 63 interlocks on this rotating band, a plurality of flabellums 63 become the direction towards the regulation of lamp drive division 45 sides.
This state is represented in Fig. 3 (a).Under this state, a plurality of flabellums 63 are towards lamp drive division 45 sides, so that the air quantity of the cooling air W2 of lamp drive division 45 becomes is more than the cooling air W1 of power supply unit 40.
Equally, in Fig. 3 (b), the form of the window shutter 62 when having represented to have selected dynamic mode.
Selecting dynamic mode, thereby when applying the 2nd driving electric discharge lamp 1 from lamp drive division 45 and become the high brightness state, the driving voltage of fan F4 improves, a plurality of flabellums 63 of window shutter 62 are towards the direction of the regulation of power supply unit 40 sides simultaneously.In addition, the direction of regulation is by driving data in the ancillary data that is stored in the reservoir 54 and parameter regulation, and these information are in view of the temperature characterisitic of power supply unit 40 and lamp drive division 45 and predefined in the design phase.
Under this state, because a plurality of flabellums 63 are towards power supply unit 40 sides, so that the air quantity of the cooling air W1 of power supply unit 40 becomes is more than the cooling air W2 of lamp drive division 45.
Like this, distribute control part drive controlling dispenser, make that the driving electric of light source portion 5 is big more, increase air quantity more to the cooling air of power supply unit 40 distribution.That is, distribute adjustment part 61 to increase the air quantity of the cooling air at the position that temperature under each driving electric amount is raise.
Fig. 4 is that expression is corresponding with the driving electric (brightness) of the light source portion of projector of the present invention, the curve map of the temperature regime of power supply unit and lamp drive division etc.
Curve map m, by constituting with the same scale axle of the curve map g of Fig. 9, here, Yi Bian Yi Bian relatively curve map m and curve map g are described.
Select theater mode, when thereby light source portion 5 applies the 1st driving electric and becomes low-light level, the ratio of air quantity of being distributed to the cooling air W2 of lamp drive division 45 by window shutter 62 increases, so the cooling effectiveness of lamp drive division 45 rises.Thus, shown in curve map m, even when the driving voltage that makes fan F4 descends also cool down lamp drive division 45 fully.In addition, curve map m represents to make the state of temperature of the lamp drive division 45 under the state that the driving voltage of fan F4 descends.Specifically, the driving voltage of fan F4 is about 7.5V at curve map g, is about 6.5V at curve map m.
In addition, increase owing to make by the ratio of window shutter 62 to the air quantity of the cooling air W2 of lamp drive division 45 distribution, simultaneously because the driving voltage of fan F4 is descended, so air quantity reduces, so temperature of power supply unit 40, compare with the temperature of the curve map g that is in some overcooled state higher, but fully in rated temperature.Therefore, in curve map m, lamp drive division 45 reduces with the temperature difference of power supply unit 40.
Equally, selecting dynamic mode, thereby when light source portion 5 applied the 2nd driving electric and becomes high brightness, the ratio of air quantity of being distributed to the cooling air W1 of power supply unit 40 by window shutter 62 increased, so the cooling effectiveness of power supply unit 40 rises.Thus, shown in curve map m, even when the driving voltage that makes fan F4 descends, also can cool off power supply unit 40 fully.Specifically, the driving voltage of fan F4 is about 9V at curve map g, and is about 8V at curve map m.
In addition, increase owing to make by the ratio of window shutter 62 to the air quantity of the cooling air W1 of power supply unit 40 distribution, simultaneously because the driving voltage of fan F4 is descended, so air quantity reduces, so temperature of lamp drive division 45, compare with the temperature of the curve map g that is in some overcooled state higher, but fully in rated temperature.Therefore, in curve map m, power supply unit 40 reduces with the temperature difference of lamp drive division 45.
Like this, consistently make the balance optimization of air quantity of the cooling air W2 of the cooling air W1 of power supply unit 40 and lamp drive division 45 by temperature characterisitic, reduce the driving voltage of the fan F4 under low-light level and the high brightness with power supply unit 40 and lamp drive division 45.
In addition, be that the situation in 2 stages is illustrated so far, but when being 3 stages or the multistage more than it, also can consistently carrying out same air quantity and distribute with the temperature characterisitic of power supply unit 40 and lamp drive division 45 to driving electric.
As mentioned above, can obtain following effect according to present embodiment.
(1) temperature characterisitic of power supply unit 40 is expressed the roughly proportional characteristic of driving electric (brightness) with discharge lamp 1, and the temperature characterisitic of lamp drive division 45 is expressed the roughly inversely proportional characteristic of driving electric (brightness) with discharge lamp 1.Therefore, when the driving electric of discharge lamp 1 is hanged down, as long as can increase the air quantity of the cooling air of distributing to lamp drive division 45, just the rotating speed of fan F4 is descended.Equally, when the driving electric of discharge lamp 1 is higher, as long as can increase the air quantity of the cooling air of distributing to power supply unit 40, just the rotating speed of fan F4 is descended.
Then, owing to consistently make the balance optimization of air quantity of the cooling air W2 of the cooling air W1 of power supply unit 40 and lamp drive division 45 with the temperature characterisitic of power supply unit 40 and lamp drive division 45, so can suppress total blast volume, can reduce the rotating speed of fan F4 by the cooling air Wa of fan F4 generation.Thus, noise level is reduced, the driving electric of fan F4 is descended.
Specifically, in the curve map m of Fig. 4, the driving voltage of the discharge lamp 1 fan F4 during for low-light level is approximately 6.5V, and is lower than about 7.5V (with reference to the curve map g of Fig. 9) of in the past projector 200.Equally, the driving voltage of the discharge lamp 1 fan F4 during for high brightness is approximately 8V, and is lower than about 9V (with reference to the curve map g of Fig. 9) of in the past projector 200.
The projector 100 of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(2) distribute adjustment part 61, when on discharge lamp 1, apply the 1st driving electric, when becoming low-light level, so that be assigned to the mode drive controlling rotary electric magnetic cell 65 that the air quantity of the cooling air W2 of lamp drive division 45 increases; When on discharge lamp 1, apply the 2nd driving electric, when becoming high brightness, so that be assigned to the mode drive controlling rotary electric magnetic cell 65 that the air quantity of the cooling air W1 of power supply unit 40 increases.That is, distribute adjustment part 61 to increase the air quantity of the cooling air at the position that temperature under each driving electric amount is raise.
Therefore,, also can effectively apply flexibly the total blast volume of the cooling air Wa that produces by fan F4, guarantee necessary cooling power even the rotating speed of fan F4 descends.And then, because the rotating speed of fan F4 is descended,, cut down simultaneously and consume electric power so can reduce noise level.
The projector 100 of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(3) because dispenser is the window shutter 62 with a plurality of flabellums 63, so, can change air quantity to the cooling air of lamp drive division 45 and power supply unit 40 distribution by changing the direction of a plurality of flabellums 63.
Therefore, can provide projector 100 simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(4) in projector 100, at least a position, light source portion 5, modulating sections 30 these several main heating positions of possessing in lamp drive division 45 and power supply unit 40 blow the fan F1～F4 of cooling air, and will capture the fan F5 that the air of the heat of each several part discharges to the outside and add up to 5 fans altogether.In addition, be integrated into 1, can form the structure that adds up to 4 fans by 2 fan F2, F3 with modulating sections 30.
Therefore, different with the projector of the patent documentation 1 of 7 cooling fans of needs, projector of the present invention can pass through 5 (perhaps 4) fans, is that projector's 100 integral body are cooled off at the center efficiently with main heating position.In addition, because the fan F4 of cooling power supply unit 40 and lamp drive division 45 makes the air quantity optimization of distributing to these two parts by window shutter 62,, reduce noise so can suppress rotating speed.
The projector 100 of therefore, can provide the operational sound peace and quiet, can energy efficiency cooling off a plurality of heating positions excellently.
(embodiment 2)
The different form of dispenser
The figure of the different form of the dispenser the when figure of the different form of the dispenser when Fig. 5 (a), Fig. 6 (a) are expression low-light level setting, Fig. 5 (b), Fig. 6 (b) are the setting of expression high brightness.Here, the different form for the dispenser of projector 100 is the center with Fig. 5 (a) and (b) and Fig. 6 (a) and (b), and suitably describes in conjunction with Fig. 1.
The R electromagnetic component 72 of Fig. 5 (a) and (b) is the dispenser with the dispenser different shape of embodiment 1, is the rotary electric magnetic cell of adjusting the posture of fan F4.In addition,, be called R electromagnetic component 72, by distributing adjustment part 61 to be driven for the rotary electric magnetic cell 65 with the window shutter 62 of embodiment 1 makes a distinction.
R electromagnetic component 72 is configured in the substantial middle bottom of fan F4, and turning axle 73 is installed on the outer package member such as cover of fan F4.By this structure, when distributing adjustment part 61 to drive R electromagnetic components 72, with the rotation of turning axle 73 mutually linkedly, the direction of fan F4 also changes.
Specifically, selecting theater mode, the driving electric of discharge lamp 1 is reduced and when becoming the low-light level state, the driving voltage of fan F4 reduces, R electromagnetic component 72 is driven simultaneously, and the air-supply face F4i of fan F4 becomes the prescribed direction towards lamp drive division 45 sides.
This state is illustrated in Fig. 5 (a).In this state, because the air-supply face F4j of fan F4 is towards lamp drive division 45 sides, so the air quantity of the cooling air W2 of lamp drive division 45 is more than the cooling air W1 of power supply unit 40.
Similarly, in Fig. 5 (b), show the form of the R electromagnetic component 72 when selecting dynamic mode.
Selecting dynamic mode, the driving electric of discharge lamp 1 is raise and when becoming the high brightness state, the driving voltage of fan F4 rises, the air-supply face F4j of fan F4 becomes the direction towards the regulation of power supply unit 40 sides simultaneously.In addition, the direction of regulation is by driving data in the ancillary data that is stored in the reservoir 54 and parameter regulation, and these information are in view of the temperature characterisitic of power supply unit 40 and lamp drive division 45 and predefined in the design phase.
Under this state, because the air-supply face F4j of fan F4 is towards power supply unit 40 sides, so that the air quantity of the cooling air W1 of power supply unit 40 becomes is more than the cooling air W2 of lamp drive division 45.
The linear actuators 82 of Fig. 6 (a) and (b) is the dispenser with the dispenser of embodiment 1 and above-mentioned R electromagnetic component 72 different shapes, the element that to be the position that makes fan F4 move along the face relative with lamp drive division 45 and power supply unit 40.In addition, linear actuators 82 is by distributing adjustment part 61 to be driven.
Specifically, selecting theater mode, the driving electric of discharge lamp 1 is reduced when becoming the low-light level state, the driving voltage of fan F4 descends, and linear actuators 82 is activated simultaneously, follow moving of telescopic shaft 83, the position of fan F4 is to the length of lamp drive division 45 side shiftings regulation.
This state representation is in Fig. 6 (a).Under this state, the air-supply face F4i's of fan F4 is more than half all in the suction face 45d of lamp drive division 45 side, so that the air quantity of the cooling air W2 of lamp drive division 45 becomes is more than the cooling air W1 of power supply unit 40.
The form of the linear actuators 82 when equally, having represented to have selected dynamic mode among Fig. 6 (b).
Selecting dynamic mode, the driving electric of discharge lamp 1 is raise when becoming the high brightness state, the driving voltage of fan F4 rises, and linear actuators 82 is activated simultaneously, and the position of fan F4 is to the length of power supply unit 40 side shiftings regulation.In addition, the length of regulation is by driving data in the ancillary data that is stored in the reservoir 54 and parameter regulation, and these information are in view of the temperature characterisitic of power supply unit 40 and lamp drive division 45 and predefined in the design phase.
Under this state, because the air-supply face F4j's of fan F4 is more than half all in the suction face 40d of power supply unit 40 side, so that the air quantity of the cooling air W1 of power supply unit 40 becomes is more than the cooling air W2 of lamp drive division 45.
As mentioned above, according to present embodiment, except that the effect of embodiment 1, can also obtain following effect.
(1) because dispenser is a R electromagnetic component 72, so, can change air quantity to the cooling air of lamp drive division 45 and power supply unit 40 distribution by driving R electromagnetic component 72.
Therefore, can provide projector 100 simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(2) because dispenser is a linear actuators 82, so, can change air quantity to the cooling air of lamp drive division 45 and power supply unit 40 distribution by driving linear actuators 82.
Therefore, can provide projector 100 simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
(embodiment 3)
The different form of dispenser
In addition, Figure 10 is the side view of the different form of dispenser.Here, use Figure 10 that the different form of the dispenser of projector 100 is described.In addition, Figure 10 observes fan F4 from suction face F4i side.
The dividing plate 92 of Figure 10 is dispenser of the form different with the dispenser of embodiment 1 and above-mentioned R electromagnetic component 72 and linear actuators 82, is arranged between lamp drive division 45 and power supply unit 40 and the fan F4 face F4j side of promptly blowing.In addition, in the substantial middle part of dividing plate 92, be formed with peristome 93 with the air-supply face F4j same size of fan F4.
On the next door of dividing plate 92, be equipped with linear actuators (diagram is omitted), the telescopic shaft of this linear actuators is installed on the dividing plate 92.In addition, linear actuators is by distributing adjustment part 61 to be driven.
In addition, in the present embodiment, dispenser is made of dividing plate 92 and linear actuators.
The position that linear actuators makes dividing plate 92 is along the face relative with lamp drive division 45 and power supply unit 40, to the direction of lamp drive division 45 or power supply unit 40, be that left and right directions (x direction of principal axis) moves.Thus, the change in location with respect to fan F4 of peristome 93 is so dividing plate 92 can change the size of the ventilating opening F4k of fan F4.
In addition, in the present embodiment, dividing plate 92 moves by linear actuators, but the present invention is not limited thereto.For example, also can make the rack and pinion mechanism that has used servomotor, tooth bar and pinion wheel, and by distributing adjustment part 61 to drive servomotor.
Under state shown in Figure 10, the position of dividing plate 92 is being arranged to: when making the part of ventilating opening F4k of the fan F4 relative bigger, a part of distributing to the cooling air W1 of power supply unit 40 is distributed to lamp drive division 45 than the part of the ventilating opening F4k of the fan F4 relative with power supply unit 40 with lamp drive division 45.Thus, the air quantity of distributing to the cooling air W2 of lamp drive division 45 becomes more than the cooling air W1 that distributes to power supply unit 40.
In addition, same, the position by making dividing plate 92 can make the air quantity of the cooling air W1 of power supply unit 40 become more than the cooling air W2 of lamp drive division 45 to power supply unit 40 side shiftings.
As mentioned above, according to present embodiment, except the effect of last embodiment 1, can also obtain following effect.
That is, because dispenser is a dividing plate 92, so by dividing plate 92 being moved, can change the air quantity of the cooling air of distributing to lamp drive division 45 and power supply unit 40.
Therefore, can provide projector 100 simple in structure, that can energy efficiency cool off a plurality of heating positions excellently.
In addition, the present invention is not limited to above-mentioned embodiment, can be to the various changes in addition of above-mentioned embodiment, improvement.The following describes variation.
(variation 1)
Use Fig. 7 describes.In above-mentioned embodiment 3, dividing plate 92 is set between lamp drive division 45 and power supply unit 40 and the fan F4, the face F4j side of promptly blowing, but also can be arranged on suction face F4i side.
By this structure, also can obtain the action effect same with above-mentioned embodiment 3.
(variation 2)
Use Fig. 1 describes.In the respective embodiments described above, for projector 100, being illustrated as the liquid crystal 3 board-like projectors of optical modulation element using 3 liquid crystal light valve 23R, 23G, 23B, but being not limited thereto, also can be the projector that possesses discharge lamp 1.
For example, projector also can be a following structures: the colored filter of red, green, blue look is configured to clathrate regularly, and use can be with 1 veneer liquid crystal light valve that penetrates the light modulated of whole colors.In addition, also can be to use the structure of reflection-type liquid-crystal display device, mirror-tilting mechanism.In addition, also can be as the back projecting projector that has possessed the projector of such optical modulation element, screen.
By these structures, also can obtain and above-mentioned embodiment and the same action effect of variation.
(variation 3)
Use Fig. 1 and Fig. 4 to describe.In above-mentioned embodiment 1, also can be following structures: in projector 100, append the temperature detecting part of the temperature sensor that comprises the temperature separately of measuring power supply unit 40 and lamp drive division 45, and then reservoir 54 in, store the temperature of this temperature sensor measurement and the driving voltage adjustment form of stipulating corresponding to the only driving voltage of the fan F4 of this temperature.
According to this structure, even because the influence of the set temperature regime of projector 100 etc., when the temperature of power supply unit 40 and lamp drive division 45 becomes the different situation of curve map m with Fig. 4, also can be corresponding with the temperature regime at each position of being measured, carry out the cooling of being undertaken by only driving voltage.In addition, also can be following structures: by temperature sensor also being arranged on the heating position that light source portion 5 waits other, respectively with the F1～F3 of the corresponding cooling usefulness of only driving voltage cooling.
(variation 4)
Use Fig. 2 describes.In the respective embodiments described above, fan F4 blows cooling air to power supply unit 40 and lamp drive division 45, but also can be in contrast, and the air of the heat of having captured power supply unit 40 and lamp drive division 45 is carried out air-breathingly discharging then.
In addition, in the respective embodiments described above, power supply unit 40 and lamp drive division 45 are adjacent to configuration, but also can be provided with leaving.In addition, dispenser has adopted window shutter 62, R electromagnetic component 72, linear executive component 82 and dividing plate 92, but also can be structure in addition, for example adopts the pipeline of the direction that changes the cooling air that is produced by fan etc.Mainly be, and can change the air quantity of distributing to power supply unit 40 or lamp drive division 45 and get final product as long as the air quantity of the cooling air that fan F4 can be produced is distributed to power supply unit 40 and lamp drive division 45.
Claims (7)
1. a projector is characterized in that, comprising:
Luminous light source portion;
Supply with the lamp drive division of driving electric to described light source portion;
At least to the power supply unit of described lamp drive division supply capability;
Make the fan of cooling air in described lamp drive division and the circulation of described power supply unit;
The air quantity of the cooling air that will be produced by described fan is distributed to described lamp drive division and described power supply unit, and can change the dispenser of the air quantity of the cooling air of distributing to described lamp drive division and described power supply unit; With
According to the driving electric that is supplied to described light source portion, the described dispenser of drive controlling, the distribution control part that the air quantity of the cooling air of distributing to described lamp drive division and described power supply unit is changed.
2. projector as claimed in claim 1 is characterized in that: the described dispenser of described distribution control part drive controlling makes the big more air quantity that then increases the cooling air be assigned to described power supply unit more of described driving electric.
3. projector as claimed in claim 1 or 2 is characterized in that:
Described lamp drive division and described power supply unit are adjacent to configuration;
Described fan and described lamp drive division and described power supply unit relatively dispose;
Described dispenser is to have a plurality of flabellums, be configured in the window shutter between described lamp drive division and described power supply unit and the described fan, by changing the direction of these a plurality of flabellums, can change the air quantity of described cooling air.
4. projector as claimed in claim 1 or 2 is characterized in that:
Described lamp drive division and described power supply unit are adjacent to configuration;
Described fan and described lamp drive division and described power supply unit relatively dispose;
Described dispenser is the rotary electric magnetic cell that changes the posture of described fan, by driving this rotary electric magnetic cell, can change the air quantity of described cooling air.
5. projector as claimed in claim 1 or 2 is characterized in that:
Described lamp drive division and described power supply unit are adjacent to configuration;
Described fan and described lamp drive division and described power supply unit relatively dispose;
Described dispenser is to make the position of described fan along the linear actuators that the face relative with described lamp drive division and described power supply unit moves, and by driving this linear actuators, can change the air quantity of described cooling air.
6. projector as claimed in claim 1 or 2 is characterized in that:
Described lamp drive division and described power supply unit are adjacent to configuration;
Described fan and described lamp drive division and described power supply unit relatively dispose;
Described dispenser be configured between described lamp drive division and described power supply unit and the described fan, the dividing plate of the size of the ventilating opening by moving, change described fan along the face relative with described lamp drive division and described power supply unit, by this dividing plate is moved, can change the air quantity of described cooling air.
7. as any described projector in the claim 1～6, it is characterized in that, comprising:
Cool off the fan of described light source portion;
The fan that the modulating sections that will become the light modulated of presentation video from the optical modulation of described light source portion is cooled off; With
To blow, take away the fan that the air of the heat of described each one is discharged to the outside by a plurality of described fans.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006047889 | 2006-02-24 | ||
| JP047889/2006 | 2006-02-24 | ||
| JP001452/2007 | 2007-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101025557A true CN101025557A (en) | 2007-08-29 |
Family
ID=38743958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710078711 Pending CN101025557A (en) | 2006-02-24 | 2007-02-25 | Projector |
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| Country | Link |
|---|---|
| CN (1) | CN101025557A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508403A (en) * | 2011-10-18 | 2012-06-20 | 深圳市远望淦拓科技有限公司 | Ball screen playing system and image generation method thereof |
| CN103454843A (en) * | 2013-08-09 | 2013-12-18 | 苏州佳世达光电有限公司 | Light source cooling device and light source system |
| CN103969936A (en) * | 2013-01-24 | 2014-08-06 | 鸿富锦精密工业（深圳）有限公司 | Light machine device of rear-projection television |
| CN104238246A (en) * | 2014-07-23 | 2014-12-24 | 苏州佳世达光电有限公司 | Projector |
| CN104570565A (en) * | 2015-01-20 | 2015-04-29 | 无锡视美乐激光显示科技有限公司 | Cooling system and method of projector |
| CN105407614A (en) * | 2015-12-23 | 2016-03-16 | 深圳市中孚光电科技有限公司 | Dimming control circuit provided with fan and having turn-off function |
| CN107390463A (en) * | 2017-08-28 | 2017-11-24 | 威创集团股份有限公司 | A kind of device and projecting apparatus for automatically adjusting projecting apparatus air inlet air quantity |
| WO2017201990A1 (en) * | 2016-05-24 | 2017-11-30 | 中兴通讯股份有限公司 | Projector safe working method and device |
| CN107975876A (en) * | 2017-12-21 | 2018-05-01 | 维睿空气***产品（深圳）有限公司 | A kind of air cleaning system based on air-treatment unit |
| CN109643048A (en) * | 2016-08-31 | 2019-04-16 | 索尼公司 | Image projection device |
| CN111880365A (en) * | 2015-12-29 | 2020-11-03 | 精工爱普生株式会社 | Illumination device and projector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508403A (en) * | 2011-10-18 | 2012-06-20 | 深圳市远望淦拓科技有限公司 | Ball screen playing system and image generation method thereof |
| CN102508403B (en) * | 2011-10-18 | 2014-06-11 | 深圳市远望淦拓科技有限公司 | Ball screen playing system and image generation method thereof |
| CN103969936A (en) * | 2013-01-24 | 2014-08-06 | 鸿富锦精密工业（深圳）有限公司 | Light machine device of rear-projection television |
| CN103454843A (en) * | 2013-08-09 | 2013-12-18 | 苏州佳世达光电有限公司 | Light source cooling device and light source system |
| CN103454843B (en) * | 2013-08-09 | 2016-01-27 | 苏州佳世达光电有限公司 | A kind of light source cooling device and light-source system |
| CN104238246A (en) * | 2014-07-23 | 2014-12-24 | 苏州佳世达光电有限公司 | Projector |
| CN104570565A (en) * | 2015-01-20 | 2015-04-29 | 无锡视美乐激光显示科技有限公司 | Cooling system and method of projector |
| CN105407614A (en) * | 2015-12-23 | 2016-03-16 | 深圳市中孚光电科技有限公司 | Dimming control circuit provided with fan and having turn-off function |
| CN111880365A (en) * | 2015-12-29 | 2020-11-03 | 精工爱普生株式会社 | Illumination device and projector |
| WO2017201990A1 (en) * | 2016-05-24 | 2017-11-30 | 中兴通讯股份有限公司 | Projector safe working method and device |
| CN109643048A (en) * | 2016-08-31 | 2019-04-16 | 索尼公司 | Image projection device |
| CN107390463A (en) * | 2017-08-28 | 2017-11-24 | 威创集团股份有限公司 | A kind of device and projecting apparatus for automatically adjusting projecting apparatus air inlet air quantity |
| CN107975876A (en) * | 2017-12-21 | 2018-05-01 | 维睿空气***产品（深圳）有限公司 | A kind of air cleaning system based on air-treatment unit |
| CN112346291A (en) * | 2019-08-06 | 2021-02-09 | 精工爱普生株式会社 | Light source device and projector |
| CN112346291B (en) * | 2019-08-06 | 2022-06-28 | 精工爱普生株式会社 | Light source device and projector |
| US20210373422A1 (en) * | 2020-05-26 | 2021-12-02 | Qisda Corporation | Liquid-crystal display projector |
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