CN204256349U - Light supply apparatus and projector - Google Patents

Abstract

The utility model provides a kind of light supply apparatus and the projector that can improve the cooling effectiveness of light source.As light supply apparatus, possess light source and receive the case of this light source in inside, case has the outside forming this case respectively, and, cross one another first surface and second (face portion and right side face) and formed in the mode striding across first surface and second, and internally import the introducing port of the air of cooling light source.

Description

Light supply apparatus and projector

Technical field

The utility model relates to light supply apparatus and projector.

Background technology

Conventionally, there is known possessed light supply apparatus, modulate the light that penetrates from this light supply apparatus and form the optic modulating device of the image corresponding with image information and the Nonlinear magnify of formation projected to the projector of the projecting optical device the face of being projected.As such projector, there will be a known to have possessed and blow cooling air to cool the projector (for example, referring to patent documentation 1) of the cooling fan of light supply apparatus.

In the projector described in this patent documentation 1, light supply apparatus possesses luminotron, reverberator, parallelization concavees lens and maintaining part.Wherein, the mode that maintaining part is fixed on the surrounding of the reverberator of the sealing of luminotron with encirclement by bonding agent etc. is set up, and keeping parallelism concavees lens.In a pair side mutually opposing in such maintaining part, be formed with air entry a side, be formed with exhausr port in another side.In addition, in maintaining part, be formed with the upper side respectively to luminotron and lower side branch, and be by stream that cooling air is this pipe bulb of being led from top by cooling air posture of putting upside down (furred ceiling posture) from the stream in pipe bulb and the projector of top guiding luminotron when just putting posture (desktop posture) at projector.In addition, when being provided with the reversion up and down making projector in maintaining part, rotating because of deadweight and close the stream being positioned at below, and the air guiding importing inside via above-mentioned air entry is positioned at the shutter of the stream of top.

By such formation, no matter projector is any one posture of just putting posture and posture of putting upside down, all can blow from top to above-mentioned pipe bulb the cooling air be directed in maintaining part.

Patent documentation 1: Japanese Unexamined Patent Publication 2012-27171 publication

Here, in the light supply apparatus described in above-mentioned patent documentation 1, via the air entry being formed at an above-mentioned side in maintaining part, the cooling air from cooling fan is imported inner.Therefore, make cooling air import in this maintaining part efficiently, expect that the blowing direction of the cooling air of cooling fan is orthogonal relative to an above-mentioned side.

But, when configuring cooling fan like this, need the housing extending projector to the direction that the blowing direction of the air with this cooling fan is contrary, and there is this projector and to maximize such problem.

On the other hand, if configure this cooling fan with the suction face of the cooling fan be made up of multi blade fan along the mode of an above-mentioned side (defining the side of air entry), then the cooling air existed from cooling fan is difficult to be imported into problem such in maintaining part via air entry.

On the other hand, consider to connect the escape hole of cooling fan and above-mentioned air entry by bending air channel.But in such formation, because of the sweep in cooling air collision air channel, the pressure loss becomes large, and the flow that there is the air be imported in maintaining part tails off, the not high such problem of cooling effectiveness of light supply apparatus.

Utility model content

One of the purpose of this utility model is to provide a kind of light supply apparatus and the projector that can improve the cooling effectiveness of light source.

The feature of the light supply apparatus involved by first method of the present utility model is to possess: light source; And case, it receives above-mentioned light source in inside, and above-mentioned case has: first surface and second, and it forms the outside of this case respectively, and, mutually intersect; And introducing port, it is formed in the mode striding across above-mentioned first surface and above-mentioned second, and internally imports the air of the above-mentioned light source of cooling.

According to above-mentioned first method, and only formed compared with the situation of introducing port at the first surface of case and any one face of second, the aperture area of this introducing port can be expanded.Namely, can by each of the opening surface (being formed the imaginary opening surface at edge by first surface) along first surface in introducing port and the opening surface (forming the imaginary opening surface at edge by second) along second, in case, importing cools the cooling-air of light source.Therefore, it is possible to increase the flow of the air be imported in light supply apparatus, the cooling effectiveness of light source can be improved.

In above-mentioned first method, defining the angle of the crossing defining the position of above-mentioned introducing port in the position of above-mentioned introducing port and above-mentioned second in preferred above-mentioned first surface is obtuse angle.

Here, observe from first surface side, when edge along the opening surface of second is positioned at the position of the size of the depth direction orthogonal with this first surface, when the position defining introducing port is obtuse angle with the angle of the crossing defining the position of introducing port in second, more can expand the area along the opening surface of second in this first surface compared with the situation at right angle.

Therefore, in above-mentioned first method, be obtuse angle by the above-mentioned angle of the crossing, the area (area along the opening surface of second) of the opening surface of introducing port can be expanded.Therefore, it is possible to increase the flow of the air in lead-in light source apparatus further, the cooling effectiveness of light source can be improved further.

In above-mentioned first method, preferred above-mentioned case has and is installed in above-mentioned introducing port, and the net corresponding with the shape at the edge of above-mentioned introducing port.

In addition, as the shape of above-mentioned net, the shape be combined with along the opening surface of above-mentioned first surface and the opening surface along above-mentioned second is listed.

According to above-mentioned first method, when have employed illuminator as light source, even if this illuminator breaks, by being installed in the net of introducing port, also dispersing of fragment can be prevented.

In addition, net has the shape corresponding with the shape at the edge of introducing port, so the area of the net being installed in this introducing port can be expanded, the area (area by the bore portion of metal or fibroplastic grid) of the part of this introducing port inner air flow can be expanded.Therefore, it is possible to make the flow being imported the air in case by net increase, the cooling effectiveness of light source can be improved further.

In above-mentioned first method, preferred above-mentioned light source is the illuminator of the illuminating part with Discharge illuminating, above-mentioned case has respectively to different direction branches, and make to import to multiple stream of inner air circulation from above-mentioned introducing port and make air to above-mentioned multiple stream, the stream switching part that the stream of top that above-mentioned illuminating part lead accordingly with the posture of this light supply apparatus circulates, above-mentioned stream switching part is positioned at the inner side of above-mentioned introducing port.

Here, when the lighting of illuminator, the top in illuminating part is the highest temperature, if but the temperature on this top too rise, then the base material that there is illuminating part recrystallizes and produces the possibility of gonorrhoea.

On the other hand, according to above-mentioned first method, stream switching part according to the posture of light supply apparatus, make from introducing port import air to guiding illuminating part top stream circulation, so the top of this illuminating part effectively can be cooled.

In addition, stream switching part is positioned at the inner side of introducing port, thus compared with being configured in the situation away from the position of introducing port with this stream switching part, can shorten the stream that air circulates in case.Therefore, except the maximization of light supply apparatus can be suppressed, the pressure loss of the air blowed to light source can also be suppressed.

The feature of the projector involved by second method of the present utility model is to possess: above-mentioned light supply apparatus; Optic modulating device, it is modulated the light penetrated from above-mentioned light supply apparatus; Projecting optical device, its light modulated by above-mentioned optic modulating device that projects; And cooling fan, it is to above-mentioned introducing port blow air.

According to above-mentioned second method, the effect identical with the light supply apparatus involved by above-mentioned first method can be played.In addition, by cooling fan, can reliably make in the air lead-in light source apparatus of cooling light source.Therefore, it is possible to reliably improve the cooling effectiveness of light source.

In above-mentioned second method, the blowing direction of the air that preferred above-mentioned cooling fan blows towards above-mentioned introducing port, and, tilt relative to each of above-mentioned first surface and above-mentioned second.

According to above-mentioned second method, by setting the blowing direction of the air that cooling fan blows as described above, this air is imported in light supply apparatus from the opening surface along first surface introducing port and along each of the opening surface of second.Accordingly, the air sent from cooling fan can via in introducing port reliably lead-in light source apparatus.Therefore, it is possible to reliably increase the air capacity be imported in this light supply apparatus.In addition, by configuring cooling fan like this, the mode orthogonal with any one face of the blowing direction of the air blowed with this cooling fan and first surface and second configures compared with the situation of cooling fan, and the size of the projector in the direction orthogonal with this face can be suppressed unnecessarily to increase.Therefore, it is possible to suppress projector unnecessarily to maximize.

In above-mentioned second method, preferred above-mentioned cooling fan has fan main body and the air channel portion of above-mentioned introducing port of being led by the cooling-air blowed from said fans main body.

According to above-mentioned second method, can efficiently by the air that blows from fan main body via air channel portion guiding introducing port, so can reliably increase the flow being imported into the air in light supply apparatus via this introducing port.Therefore, it is possible to reliably improve the cooling effectiveness of light source.

Accompanying drawing explanation

Fig. 1 is the figure of an example of the use-pattern of the projector represented involved by an embodiment of the present utility model.

Fig. 2 is the stereographic map of the outward appearance of the projector represented in above-mentioned embodiment.

Fig. 3 is the vertical view from the projector the above-mentioned embodiment that top part side is observed.

Fig. 4 is the stereographic map of the optical unit represented in above-mentioned embodiment.

Fig. 5 is the schematic diagram of the formation of the optical unit represented in above-mentioned embodiment.

Fig. 6 is the cut-open view of the Inner Constitution of the projecting optical device schematically represented in above-mentioned embodiment.

Fig. 7 is the stereographic map of the outward appearance of the case represented in above-mentioned embodiment.

Fig. 8 is the figure of the right side face of the case represented in above-mentioned embodiment.

Fig. 9 is the figure of the left side face of the case represented in above-mentioned embodiment.

Figure 10 is the cut-open view of the case represented in above-mentioned embodiment.

Figure 11 is the cut-open view schematically representing the light supply apparatus observed from the face portion side above-mentioned embodiment.

Figure 12 is the schematic diagram of the flowing of the air representing the case be fed in above-mentioned embodiment.

Figure 13 is the schematic diagram of the flowing of the air representing the case be fed in above-mentioned embodiment.

Figure 14 is the schematic diagram of the flowing of the air representing the case be fed in above-mentioned embodiment.

Figure 15 is the schematic diagram of the flowing of the air representing the case be fed in above-mentioned embodiment.

Figure 16 is the exploded perspective view of the cooling fan represented in above-mentioned embodiment.

Figure 17 is the stereographic map representing light supply apparatus in above-mentioned embodiment and cooling fan.

Figure 18 is the stereographic map representing light supply apparatus in above-mentioned embodiment and cooling fan.

Figure 19 is the vertical view of the allocation position of the cooling fan represented in above-mentioned embodiment.

Embodiment

Below, based on accompanying drawing, an embodiment of the present utility model is described.

The use-pattern of projector

Fig. 1 is the figure of an example of the use-pattern of the projector 1 represented involved by present embodiment.

Projector 1 involved by present embodiment forms the image corresponding with the image information received from image output devices (omit and illustrate) such as PC (Personal Computer: personal computer), and this Nonlinear magnify is projected to screen etc. is projected on the SC of face.This projector 1 such as, as shown in Figure 1, is fixed on the arm AM of the installation surface ES be installed on along the horizontal plane, and with towards the face that the is projected SC being formed at this installation surface ES below vertical direction upward the overhead projection posture of projected image use.

In addition, projector 1 is not limited to above-mentioned overhead projection posture, also can with above vertical direction downward the below projection posture of projected image use.In addition, projector 1 also can be placed on setting table etc. with described later in the mode of top part 2A above vertical direction, and from side towards just putting posture and just putting with this posture of putting upside down that posture arranges up and down on the contrary and use along projected images such as the face that the is projected SC of vertical.

The outward appearance of projector is formed

Fig. 2 is the stereographic map representing projector 1.In addition, Fig. 3 is the vertical view of the projector 1 having taken off the state of cover 22 observed from top part 2A side.In addition, in figure 3, the allocation position of the optical unit 4 of constituent apparatus main body 3 shown in broken lines in external shell 2.

As shown in FIG. 2 and 3, it is exterior that projector 1 possesses formation, and receive the external shell 2 of apparatus main body 3 described later in inside.

External shell 2 is plastic housings that entirety has roughly rectangular shape.This external shell 2 has both sides face 2C, 2D, back part 2E and the face portion 2F of mutually opposing top part 2A and bottom surface sections 2B, left and right.And as shown in Figure 1, with relative to being projected SC face portion 2F side, face in nearer position, back part 2E side is configured in the mode of position far away projector 1.

Top part 2A have with from face portion 2F towards the first dip plane 2A1 and the second dip plane 2A2 and guidance panel 2A3 being positioned at back part 2E side compared with the approximate centre position in the direction of back part 2E.

First dip plane 2A1 is positioned at back part 2E side relative to the second dip plane 2A2, and along with from this back part 2E side towards face portion 2F side, and tilt to the direction close to bottom surface sections 2B.The recess 2A11 caved in towards the aspheric mirror 462 of projecting optical device 46 described later is formed at this first dip plane 2A1.This recess 2A11 is formed at the face 2C side, left side in the first dip plane 2A1, is formed through the first peristome 2A12 that passes through of image of this projecting optical device 46 projection in the bottom part of this recess 2A11.The forming position of this first peristome 2A12 is corresponding with the peristome 4631 (Fig. 6) that this projecting optical device 46 has.

It is the second peristome 2A13 and the 3rd peristome 2A14 of rectangular shape separately that face 2D side, right side in the first dip plane 2A1 is set side by side with.Wherein, be configured with in the 3rd peristome 2A14 close to right side face 2D to the infrared signal from telepilot (diagram omit) carry out light by optical module RM, be configured with the filming apparatus DV that shooting is projected face SC in the second peristome 2A13 near recess 2A11.These peristomes 2A13,2A14 respectively tegmentum 2A15,2A16 close.

Second dip plane 2A2 is connected with the first dip plane 2A1, and tilts to the direction away from bottom surface sections 2B along with from back part 2E towards face portion 2F.

Guidance panel 2A3 is located at from the scope of the end of back part 2E side to the first dip plane 2A1 in top part 2A, and, be located at the position of side surface part 2D side.The multiple keys for operating projector 1 are equipped at this guidance panel 2A3.

With top part 2A for upside and from face portion 2F side observation projector 1, be formed with air entry 2C1 at the left side face 2C being positioned at left side.Be provided with air strainer (omitting diagram) in the inner side of this air entry 2C1, the cooling-air of cooling device main body is fed in external shell 2 via this air entry 2C1 and air strainer.

The exhausr port 2D1 (Fig. 3) discharging the air cooling apparatus main body 3 outside external shell 2 is formed at the right side face 2D of the side contrary with left side face 2C.

The substantial middle of the facial 2D in right side covers is located at the interface portion 23 (Fig. 3) of the side of housing body 21, and by being formed by the mode of the dismounting cover 22 of being located at this housing body 21.Although omit diagram in detail, this cover 22 is formed as being formed respectively the roughly U-shaped with the transverse direction of three side surface part of a part of the part of top part 2A, a part of bottom surface sections 2B and the right side face 2D that comprise the second dip plane 2A2.

In addition, housing body 21 consists of the lower case 212 of the upper case 211 of a respective part of above-mentioned top part 2A and each facial 2C, 2D, 2E, 2F and a respective part of formation bottom surface sections 2B and each facial 2C, 2D, 2E, 2F and forms combination.

The formation of apparatus main body

As shown in Figure 3, apparatus main body 3 is incorporated in external shell 2.This apparatus main body 3 possesses the cooling device 6 (with reference to Figure 16) of the optical unit 4 of formation and projected image and the component parts (such as, light supply apparatus 41 described later and various optics) of cooling projector 1.In addition, although omit concrete diagram, apparatus main body 3 possess to the component parts supply electric power of projector 1 supply unit and control the control device etc. of action of projector 1.

The formation of optical unit

Fig. 4 is the stereographic map representing optical unit 4, and Fig. 5 is the schematic diagram of the formation representing optical unit 4.

Optical unit 4 is equivalent to optical devices of the present utility model, under the control of above-mentioned control device, forms the image corresponding with image information (comprising picture signal) and projects.As shown in FIG. 4 and 5, this optical unit 4 possesses light supply apparatus 41 (Fig. 4 and Fig. 5) and various device 42 ~ 46 (Fig. 5) and optical component casing 47 (Fig. 4 and Fig. 5).

In addition, in the present embodiment, the direct of travel of the light penetrated from light supply apparatus 41 is set to Z-direction, will be orthogonal with this Z-direction respectively, and mutually orthogonal directions are set to X-direction and Y-direction.In these X-directions and Y-direction, Y-direction is the direction (identical towards the direction of top part 5A with from bottom surface sections 5B described later) from above-mentioned bottom surface sections 2B towards top part 2A, and X-direction is the direction (with identical towards the direction of right side face 5E from left side face 5F described later) from back part 2E towards face portion 2F.That is, X-direction be from top part 2A side downward projection instrument 1, the direction (specifically, with the projecting direction of this image equidirectional) parallel with the projecting direction of the image of projecting optical device 46.

As shown in Figure 5, light supply apparatus 41 has as the illuminator 411 of light source, reverberator 412 and collimation lens 413 and the case 5 receiving these parts in inside, and penetrates light to uniforming device 42.Wherein explained later case 5.

Illuminator 411 has at the roughly spherical illuminating part 4111 of internal discharge luminescence and extends outstanding sealing 4112,4113 in the opposite directions to each other from the two ends of this illuminating part 4111.In addition, the region of sealing 4112 side covered in illuminating part 4111 is installed at illuminator 411, and makes the subreflector 4114 that the light injected from this illuminating part 4111 reflects towards reverberator 412.

Reverberator 412 is the principal reflection mirrors being fixed on sealing 4113.This reverberator 412 has light (comprising the light reflected by the subreflector 4114) reflection making to inject from illuminating part 4111, and makes it inject the reflecting surface of the concave curved surface shape of collimation lens 413.

Uniforming device 42 make from light supply apparatus 41 penetrate light beam relative to the uniform-illumination in the normal surface of central shaft.This uniforming device 42 injecting sequentially by the light from light supply apparatus 41, have the first lens arra 421, light modulating device 422, second lens arra 423, polarization conversion element 424 and overlapping lens 425, these are equivalent to optics of the present utility model.

The light injected is divided into multiple segment beam by the first lens arra 421 and the second lens arra 423, and make the overlapping image forming area to liquid crystal panel 453 described later of the plurality of segment beam together with overlapping lens 425, and then equably this image forming area is thrown light on.

Light modulating device 422 blocks injects the light of the second lens arra 423 at least partially from the first lens arra 421, and the light quantity of this second lens arra 423 is injected in adjustment, and then the light quantity of liquid crystal panel 453 is injected in adjustment.

Polarization conversion element 424 has the unified function of the polarisation of light light direction that makes to inject.

The beam separation injected from uniforming device 42 is red (R) by color separator 43, green (G) and blue (B) three kinds of coloured light.This color separator 43 have blue light is reflected and make green light and red light through dichroic mirror 431, make to reflect through the green light in the green light of this dichroic mirror 431 and red light and make red light through dichroic mirror 432 and the catoptron 433 that is located in the light path of blue light.

Relay 44 is located in the light path of the red light of separation.This relay 44 has injects side lens 441, relay lens 443 and catoptron 442,444.

Image processing system 45 is modulated each coloured light be separated according to often kind of coloured light, and forms the image corresponding with image information.This image processing system 45 have arrange according to each this coloured light object lens 451, inject lateral deviation tabula rasa 452, as the liquid crystal panel 453 of optic modulating device and emitting side Polarizer 454 and the orthogonal colour splitting prism 455 as color synthesizer.In these parts, liquid crystal panel 453 (respectively red, green and blue liquid crystal panel being set to 453R, 453G, 453B), based on the image information inputted from above-mentioned control device, is modulated the coloured light injected.In addition, orthogonal colour splitting prism 455 synthesizes by each coloured light (each color image) of each liquid crystal panel 453R, 453G, 453B modulation.

Fig. 6 is the cut-open view of the Inner Constitution schematically representing projecting optical device 46.

The light injected from image processing system 45 (image) amplification is projected to above-mentioned being projected on the SC of face by projecting optical device 46.As shown in Figure 6, this projecting optical device 46 possess multiple lens 461, as catoptron aspheric mirror 462 and receive the holder 463 of hollow form of these parts in inside.

Multiple lens 461 such as, have zoom lens and condenser lens.

Aspheric mirror 462 has the reflecting surface 462A of the free form surface shape of non rotating symmetry.The light path most downstream of this aspheric mirror 462 in projecting optical device 46, with reflecting surface 462A, above face portion 2F skew back, the mode of (relative to bottom surface sections 2B towards top part 2A side) arranges.And, aspheric mirror 462 make by multiple lens 461 from the image inclination of guiding back part 2E side, face portion 2F side above face portion 2F side of turning back, and make this image wide angle.

Be formed with the peristome 4631 that the image reflected at aspheric mirror 462 is passed through in the top part 2A side of holder 463, be embedded with the substrates 4632 such as the glass making visible light-transmissive at this peristome 4631.

Wherein, peristome 4631, in order to unnecessarily increase the aperture area of this peristome 4631, is formed in the position (position close to the position P of the light optically focused reflected at aspheric mirror 462) leaving predetermined distance relative to aspheric mirror 462.

Although the diagram of omission, optical component casing 47 is the box-shaped shells be made up of member storage parts and lid parts, as shown in Figure 5, and inner setting lighting optical axis AX.And above-mentioned light supply apparatus 41 and each device 42 ~ 44 are configured in the assigned position relative to lighting optical axis AX in optical component casing 47, said apparatus 45,46 is configured on the extended line of this lighting optical axis AX.Therefore, when light supply apparatus 41 is configured at optical component casing 47, consistent with lighting optical axis AX from the central shaft of the light of this light supply apparatus 41 injection.

As shown in Figure 3, such optical component casing 47 configures along the mode of face portion 2F with lighting optical axis AX.In addition, projecting optical device 46 configures in the mode of the central shaft of the light through this projecting optical device 46 along left side face 2C.In other words, optical component casing 47 configures in the lighting optical axis AX mode along the Z direction of the central shaft along the light penetrated from the light supply apparatus 41 be connected with end side, the projecting optical device 46 connected with another side of this optical component casing 47 is with the optical axis of this projecting optical device 46 along orthogonal with Z-direction, and the mode in the direction contrary with X-direction configures.That is, optical component casing 47, and then optical unit 4 is observed from top part 2A side and is configured to roughly L-shaped.And observe from top part 2A side, the optical unit 4 of each formation 41 ~ 47 of integration is with the central shaft of the light penetrated from light supply apparatus 41 along face portion 2F, and the mode of optical axis facial 2C along left side of projecting optical device 46 configures.

In addition, although the diagram of omission, the air channel of the air guiding cooling uniforming device 42 is provided with in the below (bottom surface sections 2B side, the side contrary with Y-direction) of optical component casing 47.And as shown in Figure 4, optical component casing 47 has the multiple peristomes 471 inside and outside connection, air is via the inwardly outer circulation of this peristome 471, thus cooling is accommodated in inner optics.In addition, in the diagram, the face of the X-direction (face portion 2F side) in not shown optical component casing 47, but also form peristome 471 in this face.This face opposed with suction face 64B in cooling fan 61 described later (with reference to Figure 19).

The formation of case

Fig. 7 is the stereographic map of the outward appearance representing the case 5 forming light supply apparatus 41.In addition, Fig. 8 and Fig. 9 represents the right side face 5E of the case 5 and figure of left side face 5F.

Case 5 receives above-mentioned illuminator 411 and reverberator 412, and keep the light source housing of the roughly rectangular shape of collimation lens 413.As shown in Fig. 7 ~ Fig. 9, this case 5 has the first housing 51 of the face side (Z-direction side) covering reverberator 412 and covers second housing 52 of rear side (side contrary with Z-direction) of this reverberator 412.And case 5, except the face portion 5C be made up of the first housing 51 and back part 5D be made up of the second housing 52, also has side surface part 5E, the 5F of top part 5A, bottom surface sections 5B and the left and right formed respectively by combining these cases 51,52.

As shown in Figure 7, top part 5A has handle 5A1, button 5A2 and engaging portion 5A3.Handle 5A1 is formed as roughly U-shaped, and the two ends of this roughly U-shaped are rotatably supported by top part 5A.And if press the button 5A2, then remove the locking of engaging portion 5A3, handle 5A1 erects from top part 5A to Y-direction.Thus, the light supply apparatus 41 in the light source incorporating section (omitting diagram) being accommodated in and being located in external shell 2 is easily taken out.In addition, the two ends of the face portion 5C side (Z-direction side) in top part 5A are formed with the hole portion 5A4 of the screw SR insertion of case 5 (and then light supply apparatus 41) being fixed on this light source incorporating section.

Face portion 5C has the peristome (diagram is omitted) of the light transmission penetrated from illuminator 411 and reverberator 412.This peristome is collimated lens 413 and closes.In addition, as shown in Figure 7, collimation lens 413 by the leaf spring 5C1 as locking member engaging in face portion 5C.

As shown in Figure 7 and Figure 8, right side face (with top part 5A for upside and opposed with face portion 5C time the side surface part on right side) 5E has connector CN and introducing port 5E1.

Connector CN is configured in the substantial middle of the facial 5E in right side.This connector CN is connected with the connector be located in above-mentioned light source incorporating section (omit and illustrate), and the electric power supplied from above-mentioned supply unit is supplied to illuminator 411.

Introducing port 5E1 is arranged in the back part 5D side of the facial 5E in right side.Case 5 (the second housing 52) air is outward imported the space of the back part 5D side of reverberator 412 by this introducing port 5E1.This air cools this reverberator 412 along the position circulation of the back part 5D side in reverberator 412.

In addition, at right side face 5E, the cooling-air blowed is imported introducing port 511 opening in case 5 (the first housing 51) from cooling fan 61 described later.

As shown in Figure 7, this introducing port 511 is formed in the mode striding across right side facial 5E and face portion 5C, and not only at right side face 5E, at face portion 5C also opening.Namely, right side facial 5E and face portion 5C is equivalent to first surface of the present utility model and second respectively, (link is formed at the edge 5E2 of the introducing port 511 of the facial 5E in right side to the opening surface of introducing port 511, and on the right side of this facial 5E imaginary opening surface 511E and link and be formed at the edge 5C2 of the introducing port 511 of face portion 5C, and along the imaginary opening surface 511C of this face portion 5C) be roughly L-shaped.Be provided with at such introducing port 511 and there is the metal net 512 that analyse and observe corresponding with the shape at the edge of this introducing port 511 is roughly L-shaped.In addition, introducing port 511 is formed in the crossover sites of right side facial 5E and face portion 5C, and, be formed at the position of Y-direction side.

As shown in Figure 9, left side face (with top part 5A for upside and opposed with face portion 5C time the side surface part in left side) 5F has a pair escape hole 5F1 being formed at the second housing 52 and escape hole 5F2 being formed at the first housing 51.

A pair escape hole 5F1 discharges the air at the position of the above-mentioned back part 5D side cooled in reverberator 412 outside case 5.

Escape hole 5F2 discharges the air cooling illuminator 411 in the space surrounded by the first housing 51 and reverberator 412 outside case 5.In addition, at escape hole 5F2, metal net 5F3 is installed.

Figure 10 is the cut-open view representing case 5.Specifically, Figure 10 is the XZ cut-open view of the case 5 on the A-A line shown in Fig. 8 and Fig. 9.In addition, Figure 11 is the figure of the XY section schematically representing the light supply apparatus 41 observed from face portion 5C side.

As shown in figs.10 and 11, the first housing 51 has the cylindrical body 53 being formed as roughly anistree frustum shape of the face portion 5C side surrounding reverberator 412 in inside.One end that the internal diameter of this cylindrical body 53 is larger is connected with the openend of reverberator 412, and the other end that internal diameter is less is connected with the inner face of face portion 5C.

As shown in figure 11, such cylindrical body 53 has almost parallel with top part 5A, right side facial 5E, bottom surface sections 5B and left side face 5F respectively the first side surface part 531, second side surface part 532, the 3rd side surface part 533 and the 4th side surface part 534.In addition, cylindrical body 53 has the first rake 535 connecting each side surface part 531,532, the second rake 536 connecting each side surface part 532,533, connects the 3rd rake 537 of each side surface part 533,534 and connect the 4th rake 538 of each side surface part 534,531.

Wherein, be formed the peristome 5351 of the sealing 4112 of the air guiding illuminator 411 be fed in case 5 at the first rake 535.In addition, the peristome 5361,5381 of the illuminating part 4111 that to be led by air is formed at the second rake 536 and the 4th rake 538.

And, case 5 has and is formed by the end face in the outside of this case 5 and the outside of cylindrical body 53 respectively, and makes to be fed to the first flow path F1 that air in case 5 circulates to peristome 5381 and the second stream F2 that this air is circulated to peristome 5361 via above-mentioned introducing port 511.

And, case 5 has in inside and arranges posture (namely according to light supply apparatus 41, projector 1 posture is set), switch in above-mentioned stream F1, F2, make the stream switching part 54 (Figure 10 and Figure 11) of the stream of the air circulation be imported into, pressing component 55 and installing component 56 (together with Figure 10).

Stream switching part 54 by being configured in the inner side of introducing port 511, and, to be configured near this introducing port 511, and the pressing component 55 by utilizing installing component 56 to be installed on cylindrical body 53, to be arranged in case 5 in the mode can rotated because of deadweight.This stream switching part 54 is the plate bodys in the end of the side contrary with introducing port 511 side with rotation axis 541.And when projector 1 is just to put posture or the setting of below projection posture, stream switching part 54 rotates because of deadweight and closes the second stream F2, and lead the air imported from introducing port 511 first flow path F1.On the other hand, when projector 1 is arranged with put upside down posture or overhead projection posture, stream switching part 54 rotates and closes first flow path F1 because of deadweight, and lead the air imported from introducing port 511 second stream F2.

Figure 12, when representing that projector 1 is arranged just to put posture, imports the schematic diagram of the flowing of the air in case 5 via introducing port 511.

Such as, when projector 1 is arranged just to put posture, as shown in figure 12, top part 5A is on the upside of vertical direction.Under this just puts posture, close the second stream F2 because of stream switching part 54, so circulated in first flow path F1 by the air of introducing port 511.In the air circulated in this first flow path F1, the air of a part, if Figure 12 is with shown in dotted line, flows in cylindrical body 53 via the peristome 5351 being blocked a part by stream switching part 54, and blows to sealing 4112.On the other hand, the air of a part is if Figure 12 is with shown in solid line in addition, circulates, and flows in cylindrical body 53 via peristome 5381, blow to illuminating part 4111 along top part 5A and the first side surface part 531 to the direction contrary with X-direction.Now, the air blowed to sealing 4112 blows from top with the angle of+45 ° with respect to vertical the VP at the center of illuminating part 4111, and blows from top to air vertical relative to this VP that illuminating part 4111 blows with the angle of-45 °.

Figure 13 represents that projector 1 is fed to the schematic diagram of the flowing of the air in case 5 when arranging with below projection posture.

When projector 1 is arranged with below projection posture, as shown in figure 13, face 5F in left side is on the upside of vertical direction.Below this under projection posture, close the second stream F2 because of stream switching part 54, so circulated in first flow path F1 by the air of introducing port 511.A part for the air circulated in this first flow path F1, if Figure 13 is with shown in dotted line, flows in cylindrical body 53 via peristome 5351, and blows to sealing 4112.On the other hand, the air of a part is if Figure 13 is with shown in solid line in addition, circulates, and flows in cylindrical body 53 via peristome 5381, blow to illuminating part 4111 along top part 5A and the first side surface part 531 to the direction contrary with X-direction.Now, the air blowed to sealing 4112 blows with the angle of+45 ° from below with respect to vertical the VP at the center of illuminating part 4111, and air vertical relative to this VP blowed to illuminating part 4111 blows from top with the angle of+45 °.

Figure 14, when representing that projector 1 is arranged to be inverted posture, is fed to the schematic diagram of the flowing of the air in case 5 via introducing port 511.

When projector 1 is arranged with posture of putting upside down, as shown in figure 14, bottom surface sections 5B is on the upside of vertical direction.Under this puts posture upside down, close first flow path F1 because of stream switching part 54, so circulated in the second stream F2 by the air of introducing port 511.In the air circulated in this second stream F2, the air of a part, if Figure 14 is with shown in dotted line, flows in cylindrical body 53 via peristome 5351, and blows to sealing 4112.On the other hand, the air of a part in addition, if Figure 14 is with shown in solid line, circulates to the direction contrary with Y-direction along right side face 5E and the second side surface part 532, and flows in cylindrical body 53 via peristome 5361, blow to illuminating part 4111.Now, the air blowed to sealing 4112 blows with the angle of-45 ° from below with respect to vertical the VP at the center of illuminating part 4111, and air vertical relative to this VP blowed to illuminating part 4111 blows from top with the angle of-45 °.

Figure 15, when representing that projector 1 is arranged with top projection posture, is fed to the schematic diagram of the flowing of the air in case 5 via introducing port 511.

When projector 1 is arranged with top projection posture, as shown in figure 15, face 5E in right side is on the upside of vertical direction.Under this overhead projection posture, close first flow path F1 because of stream switching part 54, so circulated in the second stream F2 by the air of introducing port 511.In the air circulated in this second stream F2, the air of a part, if Figure 15 is with shown in dotted line, flows in cylindrical body 53 via peristome 5351, and blows to sealing 4112.On the other hand, the air of a part in addition, if Figure 15 is with shown in solid line, circulates to the direction contrary with Y-direction along right side face 5E and the second side surface part 532, and flows in cylindrical body 53 via peristome 5361, blow to illuminating part 4111.Now, the air blowed to sealing 4112 blows from top with the angle of-45 ° with respect to vertical the VP at the center of illuminating part 4111, and air vertical relative to this VP blowed to illuminating part 4111 blows from top with the angle of+45 °.

Like this, projector 1 when just to put posture, any one posture of posture of putting upside down, overhead projection posture and below projection posture arrange, all can from the vertical direction top blow air in upper direction illuminating part 4111, and can to sealing 4112 blow air, so can cools light source lamp 411 effectively.

The formation of cooling device

Figure 16 is the exploded perspective view representing cooling fan 61.In addition, Figure 17 and Figure 18 is the stereographic map of the light supply apparatus 41 and cooling fan 61 observed from back part 2E side and face portion 2F side respectively.

As described above, cooling device 6 is configured in external shell 2, the component parts of cooling projector 1.As shown in Figure 16 ~ Figure 18, this cooling device 6 possesses the cooling fan 61 of cooling light supply apparatus 41.In addition, although the diagram of omission, cooling device 6 possesses and in external shell 2, is taken into the drawing fan of outside air via air entry 2C1 (with reference to Fig. 2) and discharges outside external shell 2 via exhausr port 2D1 (with reference to Fig. 3) and provide the cooling of the component parts of projector 1 and the extraction fan taking away the air of heat.

The formation of cooling fan

Cooling fan 61 is connected with above-mentioned introducing port 511, attracts the air in external shell 2, and blows the cooling-air of cools light source lamp 411 to this introducing port 511.This cooling fan 61 possesses fan main body 62 and fan cover 65.

Fan main body 62 is made up of the multi blade fan of two sides attraction type.Specifically, fan main body 62 has the formation that the circumferencial direction be configured with in fan drum 64 along turning axle is provided with the motor 63 of multiple blade (omitting diagram).And, with this rotating shaft direct cross in this fan drum 64, further, a mutually opposing opposite that is suction face 64A, 64B are formed with the air entry 64A1 (Figure 17), the 64B1 (Figure 16 and Figure 18) that internally attract air along with the rotation of motor 63 respectively.In addition, air entry 64B1, around motor 63, is formed as multiple arc-shaped.

In addition, as shown in figure 16, the escape hole 64C of air attracted via air entry 64A1,64B1 is discharged in the rolling tangential direction that fan drum 64 has to above-mentioned turning axle.

Fan cover 65 is made up of the first lid 66 mutually combined and the second lid 67, and in inside storage fan main body 62.

As shown in Figure 16 and Figure 17, the first lid 66 is positioned at the suction face 64A side of fan main body 62, has and defines the side surface part 661 that air entry 64A1 is positioned at the peristome 662 of the circular shape of inner side.

In addition, the first lid 66, in position corresponding to the escape hole 64C with fan main body 62, has the recess 663 forming the peristome 651 that this escape hole 64C is exposed.

In addition, the first lid 66 has with the edge of above-mentioned introducing port 511, the connecting portion 664 of the edge conjunction of face portion 5C side and with the edge of this introducing port 511, the connecting portion 665 that the part of the face portion 5C side in the edge of face 5E side, right side connects.

As shown in Figure 16 and Figure 18, the second lid 67 is positioned at the suction face 64B side of fan main body 62, has and defines the side surface part 671 that air entry 64B1 is positioned at the peristome 672 of the circular shape of inner side.In addition, the second lid 67 has from after the part the edge of peristome 672 erects, and the center towards this peristome 672 extends outstanding, and covers the cap 673 of a part for this peristome 672.This cap 673 covers a part of air entry 64B1, thus the noise to face portion 2F side produced when reducing the action of fan main body 62.

And, second lid 67 has the recess 674 forming above-mentioned peristome 651 except the position corresponding at the escape hole 64C with fan main body 62, also have with the edge of above-mentioned introducing port 511, the air channel portion 675 of the part connection of the back part 5D side in the edge of face 5E side, right side.

This air channel portion 675 has and is formed as curved inner face, and the direct of travel of the air of discharging from the escape hole 64C of fan main body 62 is bent lentamente, and by this air guiding introducing port 511.

The configuration of cooling fan

Figure 19 is the vertical view of the allocation position of the cooling fan 61 represented in external shell 2, is the figure of the position relationship representing this cooling fan 61 and light supply apparatus 41 and optical component casing 47.In other words, Figure 19 is the vertical view in the external shell 2 observed from top part 2A side.In addition, in Figure 19, the diagram being accommodated in the optics of optical component casing 47 is omitted.

As shown in Fig. 5 and Figure 19, above-mentioned cooling fan 61 is configured between the inner face 2F1 of optical component casing 47 and face portion 2F.Now, cooling fan 61 to form the suction face 64A of air entry 64A1 towards optical component casing 47, and the suction face 64B defining air entry 64B1 configures towards the mode of the inner face 2F1 of face portion 2F.That is, air entry 64A1 is towards optical component casing 47 opening, and air entry 64B1 is towards inner face 2F1 opening.

Further, when observing from top part 2A side, the mode that cooling fan 61 (fan main body 62) tilts relative to the central shaft (axle consistent with lighting optical axis AX, Z-direction) of the light penetrated from light supply apparatus 41 with suction face 64A, 64B configures.In other words, the mode that cooling fan 61 tilts relative to the projecting direction (X-direction) of the image of projecting optical device 46 with suction face 64A, 64B configures.Further in other words, the mode that the turning axle of motor 63 that cooling fan 61 has with fan main body 62 tilts relative to this projecting direction configures.

Namely, as shown in Fig. 5 and Figure 19, when observing from top part 2A side, suction face 64A, 64B tilt relative to the imaginary straight line L2 parallel with the central shaft of the light penetrated from light supply apparatus 41 (the imaginary straight line L2 parallel with Z-direction represents the imaginary straight line L2 of normal surface relative to the X-direction parallel with projecting direction that is YZ plane).In other words, the mode that this suction face 64A, 64B tilt with the imaginary straight line L1 parallel relative to the projecting direction of the image with projecting optical device 46 (the imaginary straight line L1 parallel with X-direction represents the imaginary straight line L1 of normal surface relative to above-mentioned central shaft that is XY plane) configures.

In the present embodiment, face 64A, 64B roughly tilt 78 ° relative to imaginary straight line L1, roughly tilt 12 ° relative to imaginary straight line L2.In addition, these angles can suitably change.

Further, suction face 64A, 64B are almost parallel each other, and roll tiltedly to light supply apparatus 41.Specifically, cooling fan 61 is positioned at above-mentioned central shaft side compared with the end of the end of light supply apparatus 41 side in suction face 64A, 64B and the side contrary with this light supply apparatus 41, and the mode that the end of the side contrary with this light supply apparatus 41 is positioned at face portion 2F side compared with the end of light supply apparatus 41 side configures.

Namely, cooling fan 61 is to make the end of escape hole 64C (peristome 651) side towards right side face 2D side (side contrary with Z-direction), make the end of the side contrary with this escape hole 64C towards the state in left side face 2C side (Z-direction side), and configure obliquely in the mode that the end of the side contrary with escape hole 64C is positioned at face portion 2F side (X-direction) compared with the end of escape hole 64C side.

In addition, cooling fan 61 be not limited to rotate centered by Y-direction and suction face 64A, 64B relative to the formation of YZ planar tilt, also can be configured to rotate centered by Z-direction and suction face 64A, 64B relative to YZ planar tilt.

The light supply apparatus undertaken by cooling fan and the cooling of optics

The air of discharging from fan main body 62 to lead this introducing port 511 via the connecting portion 664,665 of the edge conjunction with introducing port 511 and air channel portion 675, and via this introducing port 511, in the case 5 of lead-in light source apparatus 41.Now, observe from top part 2A side, suction face 64A, 64B of fan main body 62 tilt relative to Z-direction and X-direction as described above, so also tilt relative to Z-direction and X-direction from the blowing direction of the air of this fan main body 62.And, this blowing direction relative to opening surface 511C, the 511E in introducing port 511 each (namely, face portion 5C and right side face 5E each) tilt.And, as described above, discharge from fan main body 62, and the air be fed in case 5 is in first flow path F1 and the second stream F2, circulate with arranging in stream corresponding to posture (namely, the posture of light supply apparatus 41) of projector 1, and blow to above-mentioned illuminating part 4111 and sealing 4112, cools light source lamp 411.

In addition, take away and be configured in optics in this optical component casing 47 (such as, light modulating device 422 and polarization conversion element 424) the air of heat via the peristome 471 (with reference to Figure 19) being formed in the side surface part opposed with cooling fan 61 in optical component casing 47, attracted by this cooling fan 61.Thus, the optics in this optical component casing 47 is also cooled.

With the flowing of the air during power-off of the projector of top projection posture setting

Here, when projector 1 is arranged with the overhead projection posture shown in Fig. 1, face portion 2F is above vertical direction, and back part 2E downward.That is, cooling fan 61 is positioned at above vertical direction relative to light supply apparatus 41 and optical component casing 47.

Therefore, if the power supply of projector 1 switches to closedown from unlatching, and stop the driving of cooling fan 61, then the air taking away the heat of the optics in optical component casing 47 rises, and leads to face portion 2F effluent.This air flows out outside optical component casing 47 via peristome 471, and flows in fan main body 62 via the air entry 64A1 of cooling fan 61.

On the other hand, in the air in light supply apparatus 41, the air (such as, taking away the air of the heat of illuminator 411) taking away the heat in the first housing 51 and in reverberator 412 also rises.This air flows in fan cover 65 via introducing port 511, and then flows in fan main body 62.

Therefore, fan main body 62 is not when the multi blade fan of the one side attraction type of the air entry 64B1 (the air entry 64B1 at vertical direction upper opening) of the inner face 2F1 side opening of face portion 2F, the air flowed in fan main body 62 is easily trapped in this fan main body 62, and the heat load for cooling fan 61 increases.

On the other hand, in the present embodiment, fan main body 62 is the air entry 64A1 not only with portion 2E side opening overleaf, also there is the multi blade fan of the two sides attraction type of the air entry 64B1 at face portion 2F side opening, thus the air flowed in fan main body 62 externally can be discharged via this air entry 64B1.Therefore, it is possible to reduce the heat load for cooling fan 61.

In addition, projector 1 is arranged with below projection posture, and suction face 64A above vertical direction when, even if the air taking away heat flows in fan main body 62, this air also can be discharged to the outside of fan main body 62 via the air entry 64A1 of opening upward.Therefore, when projector 1 is arranged with below projection posture, the heat load for cooling fan 61 also can be reduced.

Here, be provided with motor 63 at suction face 64B, so air entry 64B1 needs the installation position avoiding motor 63, the area of this air entry 64B1 diminishes compared with the air entry 64A1 being formed at suction face 64A.Therefore, if cooling fan 61 configures in the mode (mode of suction face 64A, 64B and plane-parallel) that suction face 64A, 64B are orthogonal relative to vertical direction, then the air (taking away the air of heat) flowed in fan main body 62 is detained near the inner face of suction face 64B, and becomes the key factor of the control substrate damage making motor 63.

On the other hand, in the present embodiment, suction face 64A, 64B tilt relative to Z-direction, when projector 1 is arranged with top projection posture and X-direction equidirectional with vertical direction, namely, this X-direction is orthogonal, and, relative to the YZ planar tilt with plane-parallel.Therefore, it is possible to make it increase near the inner face making air not be trapped in suction face 64B, and this air is easily discharged via any one outside to fan main body 62 of air entry 64B1.Therefore, it is possible to reliably inhibition zone walks the air trapping of heat in fan main body 62, the heat load for cooling fan 61 can be reduced further.

And, as shown in figure 19, between cooling fan 61 and the inner face 2F1 of face portion 2F, do not configure the component parts that closed air entry 64B1 is such.That is, in external shell 2, around cooling fan 61, be formed with the space S making the oxygen diffusion of discharging to cooling fan 61 from air entry 64B1.Therefore, when the driving of cooling fan 61, ambient air can be attracted efficiently by the fan main body 62 of this cooling fan 61.In addition, when stopping the driving of cooling fan 61, the air taking away heat can be made not to be trapped in the surrounding of fan main body 62 and to spread, the heat load for cooling fan 61 can be reduced further.

By the flow of the air in introducing port lead-in light source apparatus

Like this, cooling fan 61 tilts relative to Z-direction with suction face 64A, 64B, and, roll oblique mode to light supply apparatus 41 and configure.Therefore, tilt from the direct of travel of the air of cooling fan 61 discharge relative to the right side face 5E and face portion 5C of case 5.

Therefore, the introducing port 511 be connected with cooling fan 61 is only when face portion 5C side opening, and only when right side face 5E side opening, the aperture area (area of the imaginary plane orthogonal with the direct of travel of above-mentioned air in the forming range of introducing port 511) of this introducing port 511 diminishes, and the flow importing the air in case 5 tails off.

On the other hand, such as, introducing port 511 is only when right side face 5E side opening, consider to configure cooling fan 61 with suction face 64A, 64B and XY plane or the parallel plane mode of XZ, along the direction contrary with X-direction, introduction port 511 blows the air of discharging from this cooling fan 61 point-blank, and the air capacity of importing is increased.That is, consider to configure cooling fan 61 in the mode in the direction contrary with X-direction, the discharge direction edge of the air of fan main body 62 discharge.But in such an arrangement, the size (size between face portion 2F and back part 2E) of the depth direction of projector 1 increases the size of cooling fan 61, produce this projector 1 and desirably not maximize such problem.

On the other hand, such as, introducing port 511 is only when right side face 5E side opening, consider to configure cooling fan 61 with suction face 64A, 64B and YZ plane or the parallel plane mode of XZ, and make the air general curved of discharging from cooling fan 61 be right angle by air channel, thus by this air guiding introducing port 511.That is, consider to configure cooling fan 61 in the mode in the direction contrary with Z-direction, the discharge direction edge of the air of fan main body 62 discharge.But, in such formation, the direct of travel of the air of discharging to this air channel from fan main body 62 is little with the angle changing rate of the direct of travel of the air sent from this air channel introduction port 511, the pressure of the air of guiding introducing port 511 reduces because of air channel, so the flow of the air of guiding illuminator 411 tails off.

On the other hand, in the present embodiment, introducing port 511 is not only at right side face 5E side opening, and the face portion 5C side opening that also facial 5E intersects on the right side of with this, the escape hole 64C of fan main body 62 and the edge of this introducing port 511 pass through fan cover 65 (mainly air channel portion 675) and be connected.

Accordingly, can via the imaginary opening surface 511E of the imaginary opening surface 511C of face portion 5C side in introducing port 511 and face 5E side, right side, import efficiently in case 5 from tilting relative to Z-direction and rolling the air that oblique fan main body 62 discharges to light supply apparatus 41.Now, cooling fan 61 tilts relative to Z-direction, and, roll tiltedly to light supply apparatus 41, thus can point-blank the air of discharging from this cooling fan 61 be led imaginary opening surface 511C, 511E.Further, the angle of the crossing of the direct of travel of the air that the direct of travel that can increase the air of discharging to air channel portion 675 from fan main body 62 is sent with the face 5E side, right side from this air channel portion 675 introduction port 511.Therefore, it is possible to suppress the reduction of pressure of the air of guiding introducing port 511, and then the minimizing of the flow of the air of the illuminator 411 that can suppress to lead.

Here, as shown in Figure 10, the angle of the crossing defining the position of introducing port 511 in the position of introducing port 511 and face portion 5C is defined in right side face 5E non-orthogonal and be obtuse angle.Specifically, the position of this face portion 5C, in the orthogonal mode of the blowing direction of the air with the cooling fan 61 tilted relative to Z-direction, tilts relative to right side face 5E.Therefore, compared with the situation that this position is orthogonal relative to the facial 5E in right side, the imaginary opening surface 511C of the introducing port 511 of face portion 5C side can be expanded.Therefore, it is possible to make the flow of the air imported via introducing port 511 increase.

The effect of embodiment

Projector 1 involved by present embodiment described above, has following effect.

In case 5, introducing port 511 to stride across the facial 5E in right side (first surface) and the mode of face portion 5C (the second face) is formed, and on the right side of this facial 5E and face portion 5C opening.Accordingly, with this introducing port 511 only right side face 5E and face portion 5C any one opening situation compared with, the aperture area of this introducing port 511 can be expanded.That is, can by introducing port 511 along the imaginary opening surface 511E of right side face 5E with along each of the imaginary opening surface 511C of face portion 5C, in case 5, import the cooling-air of cools light source lamp 411.Therefore, it is possible to increase the flow of the air in lead-in light source apparatus 41, the cooling effectiveness of illuminator 411 can be improved.

As described above, defining the angle of the crossing defining the position of introducing port 511 in the position of introducing port 511 and face portion 5C in right side face 5E is obtuse angle.Accordingly, the edge that facial 5E observes imaginary opening surface 511C from right side is positioned at the position of the size of identical depth direction (X-direction), compared with the situation that above-mentioned each position is orthogonal, the area of this imaginary opening surface 511C can be expanded.Therefore, it is possible to increase the flow of the air in lead-in light source apparatus 41 further, the cooling effectiveness of illuminator 411 can be improved further.

Net 512 is provided with at introducing port 511.Accordingly, when the illuminator 411 be configured in case 5 breaks, can this net 512 be passed through, prevent dispersing of fragment.

In addition, net 512 has the shape corresponding with the edge of this introducing port 511, so the area of the net 512 being installed on this introducing port 511 can be expanded, the area (area by the bore portion of metal or fibroplastic grid) of the part at this introducing port 511 inner air flow can be expanded.Therefore, it is possible to make the flow being imported the air in case 5 by net 512 increase, the cooling effectiveness of illuminator 411 can be improved further.

By being rotatably located at the stream switching part 54 in case 5, can according to the posture of light supply apparatus 41 (and then according to projector 1 arrange posture), make the air imported from introducing port 511 to first flow path F1 and the second stream F2, the stream circulation on the top in guiding illuminating part 4111.Therefore, it is possible to effectively cool the top in illuminating part 4111.

In addition, stream switching part 54 is positioned at the inner side of introducing port 511, thus compared with being configured in the situation away from the position of introducing port 511 with this stream switching part 54, the size from introducing port 511 to stream switching part 54 can be shortened, the stream that air circulates in case 5 can be shortened.Therefore, except the maximization of light supply apparatus can be suppressed, the pressure loss of the air blowed to illuminator 411 can also be suppressed.

The blowing direction of the air of fan main body 62 towards introducing port 511, and, relative to right side face 5E and face portion 5C each tilt.In other words, this blowing direction is relative to each inclination of opening surface 511C, 511E of introducing port 511.Accordingly, the air blowed from fan main body 62 imports in case 5, so can reliably increase the flow importing the air in case 5 via introducing port 511 from each of this opening surface 511C, 511E.In addition, by configuring fan main body 62 (cooling fan 61) like this, compared with situation about configuring with the mode orthogonal with right side face 5E with the blowing direction of the air of this fan main body 62, the size of the depth direction of projector (size of X-direction) can be suppressed desirably not increase.Therefore, it is possible to suppress projector 1 desirably not maximize.

Cooling fan 61 can via the air channel portion 675 of fan cover 65 by the Efficient air blowed from the fan main body 62 ground introducing port 511 that leads.Therefore, it is possible to reliably make the flow via the air in this introducing port 511 lead-in light source apparatus 41 increase, the cooling effectiveness of illuminator 411 reliably can be improved.

The distortion of embodiment

The utility model is not limited to above-mentioned embodiment, and the utility model also comprises the distortion that can realize in the scope of the purpose of this utility model, improvement etc.

In the above-described embodiment, the introducing port 511 being formed at case 5 is formed in the mode striding across right side facial 5E and face portion 5C, and on the right side of this each opening of facial 5E and face portion 5C.But the utility model is not limited thereto.Such as, introducing port 511 also can at right side face 5E and any one opening of top part 5A, bottom surface sections 5B and back part 5D.That is, as long as introducing port is formed in the mode of cross one another at least two side surface part in the outside striding across case, and at each side surface part opening, then the position of this introducing port can be any position.

In the above-described embodiment, the position defining introducing port 511 in right side face 5E and the position defining introducing port 511 in face portion 5C are with oblique-angle intersection.But the utility model is not limited thereto.That is, this each position also can be orthogonal.

In the above-described embodiment, the net 512 being installed on introducing port 511 has the roughly L-shaped corresponding with the shape at the edge of this introducing port 511.But the utility model is not limited thereto.Such as, only otherwise be positioned at the moving range of the stream switching part 54 of the inner side being configured in introducing port 511, then also flat net can be installed.

In the above-described embodiment, have employed the light supply apparatus 41 with illuminator 411 and reverberator 412, but the utility model is not limited thereto.Such as, also can replace illuminator 411, and adopt the solid light sources such as LED (Light Emitting Diode: light emitting diode) and LD (Laser Diode: laser diode).

In the above-described embodiment, stream switching part 54 is located at the inner side of introducing port 511, and, be located near this introducing port 511, but the utility model is not limited thereto.That is, the position of stream switching part 54 can suitably be changed.In addition, also can replace because deadweight is rotated, thus switch in first flow path F1 and the second stream F2, import the stream switching part of the stream of the air circulation in case 5, and the stream switching part switching this stream be moved in employing because of deadweight.

In the above-described embodiment, the fan main body 62 of cooling fan 61 with the blowing direction of the air of this fan main body 62 relative to the facial 5E in right side (specifically, opening surface 511E along right side face 5E) and the mode that tilts respectively of face portion 5C (specifically, along the opening surface 511C of face portion 5C) configure.But the utility model is not limited thereto.That is, also can above-mentioned 64A, 64B parallel with YZ plane or XZ plane respectively.That is, as long as introducing port cross one another two face openings in case, and can from each importing air of the opening surface along these two faces.

In the above-described embodiment, the air sent from fan main body 62 is via receiving this fan main body 62 in inside, and the air channel portion 675 of the fan cover 65 be connected with the introducing port 511 of light supply apparatus 41, import in this introducing port 511.But the utility model is not limited thereto.That is, as long as connect escape hole 64C and the introducing port 511 of fan main body 62, and the air channel portion of introducing port 511 that the air of discharging from this escape hole 64C is led, then regardless of the formation in this air channel portion, also can be independent with cooling fan 61.Further, such air channel portion can be there is no yet.

In the above-described embodiment, fan main body 62 is the multi blade fan of two sides attraction type, but the utility model is not limited thereto.That is, also can be the multi blade fan of one side attraction type, as long as can suitably introduction port 511 blow air, then also can be aerofoil fan.

In the above-described embodiment, projecting optical device 46 be configured to possess the image injected from image processing system 45 through multiple lens 461, this image is turned back and the aspheric mirror 462 reflected and the holder 463 of receiving these parts in inside, but the utility model is not limited thereto.That is, also can not as the aspheric mirror 462 of catoptron.

In addition, the face that the is projected SC being projected instrument 1 projected image can not be also the screen of reflection-type, also can be made up of transmission-type screen.

In the above-described embodiment, projector 1 possesses three liquid crystal panels 453 (453R, 453G, 453B) as optic modulating device, but the utility model is not limited thereto.That is, employ less than two, or the projector of the liquid crystal panel of more than four also can apply the utility model.

In the above-described embodiment, optical unit 4 is configured to roughly L-shaped, but the utility model is not limited thereto.Such as, the optical unit being configured to roughly U-shaped can also be adopted.

In the above-described embodiment, light beam injects the liquid crystal panel 453 that face and beam exit surface employ different infiltration types, but light injects the liquid crystal panel that face and light emergence face also can use identical reflection-type.

In the above-described embodiment, liquid crystal panel 453 is employed as optic modulating device, but as long as the optic modulating device injecting the light beam formation image corresponding with image information can be modulated, then also can use the optic modulating device beyond the liquid crystal such as the device that make use of micro mirror display element etc.

In the above-described embodiment, exemplified with the projecting direction of image and the roughly the same front projection type projector 1 of the direction of observation of this image, but the utility model is not limited thereto.Such as, the rear projector for projecting that projecting direction and direction of observation are respectively contrary direction can be also applied to.

Reference numeral explanation

1 ... projector, 41 ... light supply apparatus, 411 ... illuminator (light source), 453 (453R, 453G, 453B) ... liquid crystal panel (optic modulating device), 46 ... projecting optical device, 5 ... case, 5C ... face portion (first surface or the second face), 5E ... right side face (first surface or the second face), 511 ... introducing port, 512 ... net, 54 ... stream switching part, F1 ... first flow path, F2 ... second stream, 61 ... cooling fan, 62 ... fan main body, 675 ... air channel portion.

Claims (7)

1. a light supply apparatus, is characterized in that, possesses:

Light source; And

Case, it receives described light source in inside,

Described case has:

Form the outside of this case respectively, and cross one another first surface and second; And

Formed in the mode striding across described first surface and described second, and internally import the introducing port of the air of the described light source of cooling.

2. light supply apparatus according to claim 1, is characterized in that,

Defining the angle of the crossing defining the position of described introducing port in the position of described introducing port and described second in described first surface is obtuse angle.

3. light supply apparatus according to claim 1, is characterized in that,

Described case has and is installed in described introducing port, and the net corresponding with the shape at the edge of described introducing port.

4. light supply apparatus according to claim 1, is characterized in that,

Described light source is the illuminator of the illuminating part with Discharge illuminating,

Described case has:

Multiple stream, it is respectively to different direction branches, and makes to import to inner air circulation from described introducing port; And

Stream switching part, its make air in described multiple stream, the stream of the top of to lead described illuminating part with the posture of this light supply apparatus accordingly circulates,

Described stream switching part is positioned at the inner side of described introducing port.

5. a projector, is characterized in that, possesses:

Light supply apparatus described in any one in Claims 1 to 4;

Optic modulating device, it is modulated the light penetrated from described light supply apparatus;

Projecting optical device, its light modulated by described optic modulating device that projects; And

Cooling fan, it is to described introducing port blow air.

6. projector according to claim 5, is characterized in that,

The blowing direction of the air that described cooling fan blows towards described introducing port, and, tilt relative to each of described first surface and described second.

7. projector according to claim 5, is characterized in that,

Described cooling fan has:

Fan main body; And

Air channel portion, its described introducing port that cooling-air blowed from described fan main body is led.