JP2018017958A - projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector capable of suppressing degradation of a holding member.SOLUTION: A projector includes: a light source device; a light modulation device for modulating light emitted from the light source device; an optical component for guiding the light emitted from the light source to the light modulation device; a holding member for holding the optical component and being made of a resin material; an intermediate member being attached to the holding member and supporting the light source device; and a projection optical device for projecting light modulated by the light modulation device. The light source device has a light source and an accommodation body accommodating the light source, and is formed of a first metal material. The intermediate member is formed of a second metal material.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a projector.

Conventionally, a light source device, a light modulation device that modulates light emitted from the light source device to form an image according to image information, and projection optics that enlarges and projects the formed image onto a projection surface such as a screen 2. Description of the Related Art A projector including an apparatus and a housing that accommodates these devices is known.
As such a projector, there is known a projector capable of exchanging a light source device (lamp unit) through an opening formed in a casing (see, for example, Patent Document 1).

  In the projector described in Patent Document 1, the lamp unit includes a lamp that functions as a light source, a condensing lens that collects light emitted from the lamp, and a lamp holder that holds the lamp and the condensing lens. Among these, the lamp holder is made of a metal material such as an aluminum die cast having a high thermal conductivity, and a predetermined position (lamp house) of a holding member that holds an optical component that guides light emitted from the lamp unit to the light modulation device. ).

JP2013-11878A

  By the way, in the projector described in Patent Document 1, it is conceivable that the holding member is formed of a resin material or the like in order to reduce the weight of the projector. However, the holding member formed of the resin material is relatively weak against heat. For this reason, when a lamp holder made of a metal material having a high thermal conductivity is in direct contact with the holding member, the temperature of the contact portion of the lamp unit in the holding member is locally increased, and the holding member is likely to deteriorate. There is a problem.

  SUMMARY An advantage of some aspects of the invention is to provide a projector that can suppress the deterioration of the holding member.

  A projector according to an aspect of the present invention includes a light source device, a light modulation device that modulates light emitted from the light source device, an optical component that guides light emitted from the light source device to the light modulation device, A holding member that holds an optical component and is formed of a resin material, an intermediate member that is attached to the holding member and supports the light source device, a projection optical device that projects light modulated by the light modulation device, and The light source device includes a light source and a container that houses the light source and is formed of a first metal material, and the intermediate member is formed of a second metal material. And

According to the above aspect, since the light source device is attached to the holding member via the intermediate member, the heat of the light source device (container) is transferred to the holding member as compared with the case where the light source device is directly connected to the holding member. It can be difficult to communicate. Further, since the intermediate member to which the heat of the container formed of the first metal material is directly transmitted is formed of the second metal material, the heat is transmitted when the heat is transmitted to the intermediate member. Part of the heat is dissipated. According to this, after at least a part of the heat from the light source device is radiated by the intermediate member, it is transmitted to the holding member formed of the resin material. Therefore, deterioration of the holding member can be suppressed.
Here, when the holding member is deteriorated, the central axis of the light emitted from the light source device may deviate from the designed optical axis. In this case, since the light emitted from the light source device cannot be used effectively, the light amount of the image projected from the projection optical device of the projector may be reduced.
On the other hand, in the said one aspect | mode, since deterioration of a holding member can be suppressed, the reliability of a projector can be improved.

In the above aspect, the first metal material and the second metal material are preferably the same metal material.
Here, it is known that a metal material expands at a high temperature. For this reason, when the components of the first metal material forming the light source device and the second metal material forming the intermediate member are different, the coefficient of expansion due to the rise in heat is different, so when the light source device cannot be attached to the intermediate member, And there is a possibility that the light source device cannot be removed from the intermediate member.
In contrast, in the above aspect, since the container and the intermediate member are formed of the same metal material, the light source device can be easily detached from the intermediate member even when the container and the intermediate member are expanded by heat. it can.

In the one aspect, the intermediate member extends from the main body portion in a direction opposite to a traveling direction of light emitted from the light source device, and a main body portion facing the light emission surface of the light source device, It is preferable that the main body has a connection portion connected to the holding member.
According to such a configuration, since the connection portion connected to the holding member is located at a portion of the main body portion different from the extension portion connected to the container, the connection portion is conducted to the intermediate member via the extension portion. It is possible to make it difficult for the heat of the container to be transmitted to the holding member. Therefore, the deterioration of the connection member can be suppressed, and consequently the deterioration of the holding member connected to the main body by the connection member can be suppressed.

In the said one aspect | mode, it is preferable that at least one of the said main-body part and the said holding member has a convex part which protrudes toward the other and contacts said other.
According to such a structure, since only the said convex part contact | abuts a main-body part and a holding member, compared with the case where the whole area | region of a main-body part and all the area | regions of a holding member contact | abut, a holding member and a main-body part The contact area can be reduced. Therefore, it is possible to make it difficult to transfer heat from the main body portion to the holding member.

In the said one aspect | mode, the said main-body part has a main-body-part side convex part which protrudes in the said holding member side as said convex part, and the said holding member protrudes in the said main-body part side as said convex part. It has a side convex part, and the surface of the main body part side convex part on the projecting direction side from the main body part and the surface of the holding member side convex part on the projecting direction side from the holding member can abut. preferable.
According to such a configuration, when the intermediate member is attached to the holding member, the main body side convex portion and the holding member side convex portion abut, so that the entire area of the main body portion and the entire area of the holding member abut. Compared with the case, it can suppress that the said heat transmitted to the main-body part is transmitted to a holding member. In addition, since both the main body portion and the holding member are provided with a convex portion, for example, compared to the case where the convex portion is provided only on the intermediate member, the deterioration of the portion of the holding member that the convex portion abuts on. Can be suppressed.

In the one aspect, it is preferable that the convex portion has a hole portion through which a fixing member that fixes the intermediate member and the holding member is inserted.
An example of the fixing member is a screw.
Here, since the screw is generally formed of a metal material having a high thermal conductivity, the temperature of the screw is likely to rise more than a holding member formed of, for example, a resin material.
On the other hand, in the said one aspect | mode, since the convex part has the hole part which the said fixing member penetrates, the said screw can be covered with a convex part. Therefore, it can suppress that the heat from a screw is transmitted to a holding member.

In the one aspect, the container includes a first protrusion that protrudes in a direction orthogonal to the traveling direction, and the extension includes an insertion portion into which the first protrusion is inserted, and the main body. It is preferable to have an opening located between the portion and the inserted portion.
Here, in the light source device, there is a high possibility that the temperature on the lower side of the light emission surface, that is, the temperature of the portion that contacts the extension portion is the highest.
On the other hand, according to such a structure, since the 1st projection part of a container is inserted in the to-be-inserted part of an extension part, for example, when the part where the temperature rises most is fixed to a main-body part As compared with the above, it is possible to suppress the temperature of the intermediate member from rising. In addition, since the opening is formed on the main body side with respect to the insertion portion, the heat transmitted from the first protrusion of the container to the extended portion of the intermediate member is linearly conducted to the main body. Can be suppressed. That is, since the heat of the extension part is conducted to the main body part avoiding the opening part, it is possible to suppress the heat of the main body part from rising compared to the case where the opening part is not formed.

In the said one aspect | mode, it is preferable that the said extension part has a thermal radiation part.
According to such a structure, since the thermal radiation part is formed in the extension part, the heat from a container can be radiated with the said thermal radiation part. Therefore, since it can suppress more that heat is conducted by the main-body part, deterioration of a holding member can further be suppressed.

In the one aspect, the container has a second protrusion that protrudes from a position different from the first protrusion along the substantially same direction as the protrusion of the first protrusion, and the main body is It is preferable to have a concave portion that is located on a side opposite to the extending portion and into which the second protruding portion is inserted.
According to such a configuration, the second projecting portion provided at a position different from the first projecting portion is inserted into the concave portion formed at a position on the opposite side of the extending portion in the main body portion. Are supported by the intermediate member by first and second protrusions located at different locations. According to this, the container can be reliably fixed to the intermediate member.

In the one aspect, the main body portion includes a protruding portion protruding in the opposite direction, and a fixing portion positioned on the protruding portion and fixed to the intermediate member, and the fixing portion is the light emitting portion. It is preferable that it is located in the said opposite direction rather than a surface.
According to such a configuration, since the fixing portion is positioned on the side opposite to the light traveling direction from the light emitting surface of the light source device, the light from the light source device is not irradiated onto the fixing portion. . Therefore, since it can suppress that the temperature of a fixing | fixed part rises, it can suppress that the heat from the said light source device is transmitted to a holding member from an intermediate member, and can suppress the deterioration of the said holding member.

The perspective view which looked at the projector which concerns on one Embodiment of this invention from the front side. The perspective view which looked at the projector which concerns on one Embodiment of this invention from the side surface side. The top view which shows schematic structure of the image projection apparatus in the said embodiment. The perspective view which shows the state by which the light source device was attached to the optical component housing | casing in the said embodiment. The perspective view which looked at the light source device in the said embodiment from the opposite direction side with respect to the light-projection surface. The perspective view which looked at the light source device in the said embodiment from the light-projection surface side. The perspective view which shows the state by which the intermediate member was attached to the housing | casing for optical components in the said embodiment. The perspective view which shows the housing | casing for optical components in the said embodiment. The perspective view which looked at the intermediate member in the said embodiment from the light-incidence surface side. The perspective view which looked at the intermediate member in the said embodiment from the light-projection surface side. The right view of the housing | casing for optical components with which the intermediate member in the said embodiment was combined. The left view of the housing | casing for optical components with which the intermediate member in the said embodiment was combined. The top view of the housing | casing for optical components with which the intermediate member in the said embodiment was combined.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[Schematic configuration of projector]
FIG. 1 is a perspective view of the projector 1 according to the present embodiment as viewed from above the front side, and FIG. 2 is a perspective view of the projector 1 as viewed from above the side.
The projector 1 according to the present embodiment is an image display device that modulates light emitted from a light source to form an image according to image information, and enlarges and projects the image on a projection surface such as a screen. As shown in FIGS. 1 and 2, the projector 1 includes an exterior housing 2 that forms an exterior, and an apparatus main body (not shown) that is disposed in the exterior housing 2. The apparatus main body includes a cooling device, a control device, and a power supply device in addition to an image projection device 4 (see FIG. 3) described later.
Such a projector 1 is configured as a mobile projector that is thinned to be portable. In the projector 1, the optical component housing 6 (see FIG. 3) formed of a resin material that holds an optical component that guides the light emitted from the light source device 41 to the light modulation device 453 is formed of the resin material. The intermediate member 7 that supports the light source device 41 attached to the optical component housing 6 is formed of a metal material, so that heat from the light source device 41 is transmitted to the optical component housing 6. One of the features is that it can be suppressed.
Hereinafter, each configuration of the projector 1 will be described in detail.

[Configuration of exterior casing]
As shown in FIGS. 1 and 2, the exterior housing 2 is formed in a substantially rectangular parallelepiped shape as a whole. The exterior housing 2 includes an upper case 21 and a lower case 22 and is configured by combining them. Such an exterior housing 2 has a top surface portion 2A, a bottom surface portion 2B, a front surface portion 2C, a back surface portion 2D, a left side surface portion 2E, and a right side surface portion 2F.

The top surface 2A has an opening 2A1 that exposes an operation lever 462 provided in a lens barrel 461 of a projection optical device 46 described later. The operation lever 462 is a lever for performing focus adjustment or zoom adjustment of an image projected by the projection optical device 46. Further, the top surface portion 2A has an operation panel 2A2 that receives various operations on the projector 1. Furthermore, the top surface portion 2A has a lamp cover 2A3 that opens and closes when the light source device 41 (see FIG. 3) is replaced.
The right side surface portion 2F has an air inlet 2F1 for introducing external air into the exterior housing 2 as a cooling gas.

The front portion 2C has an opening 2C1 and an exhaust port 2C2. The opening 2C1 is located substantially at the center of the front portion 2C, and allows an image projected from the projection optical device 46 to pass therethrough. The exhaust port 2 </ b> C <b> 2 is located on the left side surface 2 </ b> E side of the front portion 2 </ b> C and discharges the cooling gas that has circulated through the exterior housing 2. A partition member 2C3 is fitted into the exhaust port 2C2, and the partition member 2C3 has a plurality of louvers 2C4 extending vertically and horizontally.
Although not shown, the bottom surface portion 2B has an intake port at a position corresponding to an exhaust fan (not shown) constituting the cooling device. The air discharged from the exhaust port 2C2 by the exhaust fan when the air outside the exterior housing 2 is taken in by the exhaust fan through the intake port and mixed with the cooling gas flowing through the exterior housing 2 The temperature of is lowered.

[Configuration of image projection apparatus]
FIG. 3 is a schematic diagram showing the configuration of the image projection apparatus 4.
The image projection device 4 forms and projects an image according to the image information under the control of the control device. As shown in FIG. 3, the image projection device 4 includes a light source device 41, a uniformizing device 42, a color separation device 43, a relay device 44, an electro-optical device 45, a projection optical device 46, an optical component housing 6, and an intermediate device. A member 7 is provided.

The light source device 41 emits light toward the homogenizing device 42. The light source device 41 includes an arc tube 411, a reflecting mirror 412, a collimating lens 413, and a container 5. Among these, the structure of the container 5 will be described in detail later.
The homogenizer 42 uniformizes the illuminance in a plane perpendicular to the central axis of the light beam incident from the light source device 41. The homogenizer 42 includes a first lens array 421, a dimmer 422, a second lens array 423, a polarization conversion element 424, and a superimposing lens 425 in the order of incidence of light beams from the light source device 41. Note that the light control device 422 may be omitted.

The color separation device 43 separates three color lights of red (R), green (G), and blue (B) from the light flux incident from the uniformizing device 42. The color separation device 43 includes dichroic mirrors 431 and 432 and a reflection mirror 433.
The relay device 44 is provided on an optical path of red light having a longer optical path than other color lights among the three separated color lights. The relay device 44 includes an incident side lens 441, a relay lens 443, and reflection mirrors 442 and 444.

  The electro-optical device 45 modulates each separated color light according to image information, and then synthesizes each color light to form image light projected by the projection optical device 46. The electro-optical device 45 includes three field lenses 451 provided according to each color light, three incident-side polarizing plates 452, and three light modulation devices 453 as light modulation devices (light modulation devices for red, green, and blue). 453R, 453G, and 453B), three output-side polarizing plates 454, and one color composition device 455. Among these, the color synthesizing device 455 synthesizes each modulated color light, and is configured by a cross dichroic prism in this embodiment. However, the present invention is not limited to this, and the color composition device 455 can also be configured by a plurality of dichroic mirrors.

  The projection optical device 46 enlarges and projects the image light formed by the electro-optical device 45 onto the projection surface. The projection optical device 46 is configured as a combined lens including a plurality of lenses (not shown) and a lens barrel 461 that accommodates the plurality of lenses therein. Among these, the lens barrel 461 is provided with the operation lever 462 (see FIGS. 1 and 2) on its outer peripheral surface.

FIG. 4 is a perspective view showing a state in which the light source device 41 is attached to the optical component housing 6. In addition, in FIG. 4, illustration of each said apparatus 42-46 is abbreviate | omitted.
As shown in FIG. 4, the optical component housing 6 supports a part of the optical components constituting the devices 42 to 46 and also supports the light source device 41 via the intermediate member 7. As shown in FIG. 3, an illumination optical axis AX is set in the optical component casing 6, and the devices 42 to 46 are arranged at predetermined positions on the illumination optical axis Ax. For example, when the light source device 41 is connected to the optical component housing 6 via the intermediate member 7, the central axis of the light beam emitted from the light source device 41 coincides with the illumination optical axis AX.
The optical component housing 6 corresponds to a holding member of the present invention, and the intermediate member 7 is attached to the optical component housing 6 and supports the light source device 41. The configurations of the optical component casing 6 and the intermediate member 7 will be described later in detail.

[Configuration of light source device container]
FIG. 5 is a perspective view of the light source device 41 viewed from the side opposite to the light emitting side, and FIG. 6 is a perspective view of the light source device 41 viewed from the light emitting side.
The housing 5 is a light source housing that houses the arc tube 411, the reflecting mirror 412, and the collimating lens 413, respectively. As shown in FIGS. 5 and 6, the container 5 includes a first main body portion 5A located on the light emission direction side in the light source device 41 and a direction opposite to the light emission direction with respect to the first main body portion 5A. A second main body portion 5B located on the side, and a duct member 5C attached to the first main body portion 5A.
In the following description, among the + X direction, the + Y direction, and the + Z direction orthogonal to each other, the + Z direction is the direction from the left side surface 2E side to the right side surface portion 2F, that is, the light emitted from the light source device 41. The direction. Further, the + X direction is a direction from the back surface portion 2D side to the front surface portion 2C side, and the + Y direction is a direction from the bottom surface portion 2B side to the top surface portion 2A side. That is, the + Z direction is a direction along the width direction of the projector 1 (exterior casing 2) when facing the front portion 2C, and the + Y direction is a height direction of the projector 1 (exterior casing 2). , + X direction is a direction along the direction in which the image is projected by the projection optical device 46 when viewed from the + Y direction side. The direction opposite to the + Z direction is taken as the −Z direction. The same applies to the −X direction and the −Y direction.

Among these, the first main body 5A and the second main body 5B are combined so as to sandwich the arc tube 411 and the reflecting mirror 412 in the + Z direction, and a collimating lens 413 is disposed in the first main body 5A. The And the duct member 5C is assembled | attached to 5 A of 1st main-body parts. As a result, the arc tube 411, the reflecting mirror 412, and the collimating lens 413 are disposed in the container 5.
In addition, the container 5 configured by combining the first main body portion 5A, the second main body portion 5B, and the duct member 5C in this way is formed of a metal material (first metal material). In the present embodiment, for example, the container 5 is made of magnesium.

Such a container 5 includes a top surface portion 51, a bottom surface portion 52, a front surface portion 53, a back surface portion 54, a left side surface portion 55, and a right side surface portion 56. Among these, the top surface portion 51, the bottom surface portion 52, the left side surface portion 55, and the right side surface portion 56 are respectively constituted by the first main body portion 5A, the second main body portion 5B, and the duct member 5C. Further, the front portion 53 is constituted by the duct member 5C, and the back portion 54 is constituted by the second main body portion 5B.
Note that the cooling gas flowing in from the inlet 5C1 of the duct member 5C flows toward the exhaust port 5C2 of the right side surface portion 56 of the container 5 and cools the light source device 41.

When the light source device 41 is connected to the optical component housing 6 via the intermediate member 7 and these are arranged in the lower case 22, the light source device 41 has the top surface 51 of the top surface 51. The top surface portion 2A side (+ Y direction side) faces, the bottom surface portion 52 faces the bottom surface portion 2B side (−Y direction side), the left side surface portion 55 faces the back surface portion 2D side (−X direction side), and the right side surface portion 56. Are arranged so as to face the front portion 2C side (+ X direction side). That is, the light source device 41 emits light from the left side surface portion 2E side (−Z direction side) to the right side surface portion 2F side (+ Z direction side).
Among these, as shown in FIGS. 5 and 6, the top surface portion 51 has a handle 511 for gripping the light source device 41 when the light source device 41 is inserted and removed. Further, the right side surface portion 56 has a connection portion 561 to which a connector (not shown) for supplying power to the light source device 41 is connected when the light source device 41 is fixed to the lower case 22.

[Configuration of the front part]
The front portion 53 constitutes an emission surface (light emission surface 41 </ b> A) of light emitted from the light source device 41. As shown in FIG. 6, the front portion 53 has an opening 531 through which light emitted from the arc tube 411 and reflected by the reflecting mirror 412 and parallelized by the collimating lens 413 is transmitted. A translucent member 532 is attached so as to close 531. The translucent member 532 is made of, for example, glass, but is not limited thereto, and may be a collimating lens 413, for example.
Further, the front portion 53 includes a locking portion 533, two pins 534, and a convex portion 535 in addition to the opening portion 531 and the translucent member 532.

The locking portion 533 corresponds to the second protrusion portion of the present invention, is positioned on one end side of the front portion 53, and engages with the intermediate member 7. More specifically, the locking portion 533 is located on the + Y direction side and the + X direction side in the front portion 53 when the light source device 41 is disposed in the exterior housing 2, and is in the −Y direction (the first to be described later). It is a plate-like portion extending along substantially the same direction as one protrusion. The locking portion 533 is fitted into the recess 74 in the protrusion 73 of the intermediate member 7 described later.
The two pins 534 correspond to the first protrusions of the present invention, and are located on the −Y direction side in the front surface 53 and from the + X direction side position and the −X direction side position to the −Y direction side. It protrudes. These two pins 534 are inserted into two inserted portions 721 (see FIG. 9) in the extending portion 72 of the intermediate member 7 described later.
The convex portion 535 is disposed at a position facing the concave portion 723 in the extension portion 72 of the intermediate member 7 described later.
The light source device 41 is attached to the optical component housing 6 via the intermediate member 7 by inserting the locking portion 533 and the two pins 534 of the front portion 53 into the concave portion 74 and the inserted portion 721 of the intermediate member 7. Installed.

[Configuration of optical component casing]
FIG. 7 is a perspective view showing a state in which the intermediate member 7 is attached to the optical component casing 6.
As shown in FIG. 7, the optical component housing 6 includes a component storage portion 61 and an attachment portion 62, and is formed of a resin material. The component storage unit 61 is open to the + Y direction side, and includes a plurality of groove portions 611 in which the respective optical components constituting the uniformizing device 42, the color separation device 43, and the relay device 44 are inserted and arranged. A box-shaped member having a plurality of locking portions 612 for locking the optical component.

[Configuration of mounting part]
FIG. 8 is a perspective view showing the optical component casing 6.
The attachment portion 62 is a portion to which the intermediate member 7 to which the light source device 41 is attached is fixed by a screw S1 as a fixing member. As shown in FIG. 8, the attachment portion 62 includes a first upright portion 621, a second upright portion 622, and a protruding portion 623.
The first upright portion 621 and the second upright portion 622 are portions facing a main body portion 71 of the intermediate member 7 described later, and stand up from the bottom of the optical component housing 6 in the + Y direction. Specifically, the first upright portion 621 is located on the −X direction side of the attachment portion 62, and the second upright portion 622 is located on the + X direction side. A surface 621A on the −Z direction side of the first upright portion 621 and a surface 622A on the −Z direction side of the second upright portion 622 are surfaces along the XY plane, respectively.

Among these, the 1st standing part 621 has the 1st recessed part 6211, the 2nd recessed part 6212, the screw hole 6213, and the positioning hole 6214 in the surface 621A.
The first recess 6211 and the second recess 6212 are substantially semi-oval recesses that open toward the −X direction, and the first recess 6211 is located on the + Y direction side of the second recess 6212.
The screw hole 6213 is formed substantially at the center of the second recess 6212. A screw S1 as a fixing member described later is screwed into the screw hole 6213.
The positioning hole 6214 is located between the first recess 6211 and the second recess 6212, and a positioning pin 717 of the intermediate member 7 described later is inserted into the positioning hole 6214.
The second upright portion 622 has a substantially semicircular concave portion 6221 that opens to the −X direction side on the surface 622A.

  The protruding portion 623 is located on the + X direction side with respect to the second upright portion 622, and protrudes on the −Z direction side from the XY plane defined by the surfaces 621A and 622A. The projecting portion 623 includes a first surface 623A continuously extending in the −Z direction from the surface 622A of the second upright portion 622, and orthogonal to the first surface 623A and parallel to the surfaces 621A and 622A. And a second surface 623B. Among these, the second surface 623B has an upper side surface 623B1 positioned on the + Y direction side and a lower side surface 623B2 positioned on the −Y direction side, and the upper side surface 623B1 and the lower side surface 623B2 are parallel to each other. is there.

On the upper side surface 623B1, an annular convex portion 6231 projecting in the −Z direction side is formed. The convex portion 6231 corresponds to the convex portion on the holding member side of the present invention, and a screw hole 6232 is formed in the approximate center of the convex portion 6231. The screw S 1 is screwed into the screw hole 6232.
On the lower side surface 623B2, an annular convex portion 6233 projecting in the −Z direction side is formed. This convex portion 6233 corresponds to the convex portion on the holding member side of the present invention, and a screw hole 6234 having the same shape as the screw hole 6232 is formed at substantially the center of the convex portion 6233, and the screw S1 is screwed together. The These screw holes 6232 and 6234 are located on the −Z direction side with respect to the screw hole 6213 formed in the first upright portion 621.
The lower side surface 623B2 has a positioning hole 6235, and the positioning hole 6235 is located on the −Y direction side of the convex portion 6233. Further, a notch 6236 is formed between the first surface 623A and the upper side surface 623B1, and a recess 74 described later is located in the notch 6236.

[Configuration of intermediate member]
FIG. 9 is a perspective view of the intermediate member 7 viewed from the −Z direction side, and FIG. 10 is a perspective view of the intermediate member 7 viewed from the + Z direction side.
The intermediate member 7 is a member that is attached to the attachment portion 62 and supports the light source device 41. The intermediate member 7 is formed of a metal material (second metal material), and includes a main body 71, an extension 72, and a protrusion 73 as shown in FIGS. 9 and 10.
In the present embodiment, the intermediate member 7 is made of magnesium. That is, the intermediate member 7 and the container 5 of the light source device 41 are formed of the same metal material (magnesium).

[Configuration of main unit]
The main body 71 is disposed to face the light emitting surface 41 </ b> A of the light source device 41. The main body 71 has a light incident side (−Z direction side) surface 71A and a light emission side (+ Z direction side) surface 71B. In addition, the main body 71 includes an opening 711, a shielding part 712, a convex part 713, a hole part 714, a first contact part 715, a second contact part 716, and a positioning pin 717.
The opening 711 is formed in a rectangular shape substantially at the center of the main body 71, and is an opening through which light emitted from the light source device 41 passes.
The shielding part 712 is a part that stands up in the + Z direction from the edge of the opening 711. The shielding part 712 suppresses the light emitted from the light source device 41 from entering the first upright part 621 and the second upright part 622.

The convex portion 713 corresponds to the connecting portion of the present invention, is an annular portion that protrudes from the surface 71B in the + Z direction, and is located on the −Y direction side at the end portion of the main body portion 71 on the −X direction side. A hole 714 through which the screw S1 as the fixing member is inserted is formed at the approximate center of the convex portion 713. When the intermediate member 7 is fixed to the mounting portion 62, the convex portion 713 is disposed to face the second concave portion 6212, and the screw S 1 is screwed into the screw hole 6213 through the hole portion 714. . Thereby, the convex portion 713 is fixed in the second concave portion 6212. The surface 71A has a recess 713A that is recessed in the + Z direction according to the protrusion 713.
Further, the projecting dimension of the convex part 713 (the dimension along the + Z direction) is set larger than the depth dimension of the second concave part 6212.
The positioning pin 717 is inserted into the positioning hole 6214 of the first upright portion 621 to position the intermediate member 7 (main body portion 71).

  The first contact portion 715 is a columnar convex portion protruding in the + Z direction from the surface 71B, and is located on the + Y direction side at the −X direction side end portion of the surface 71B. The first contact portion 715 contacts the bottom surface (the surface along the XY plane) of the first recess 6211 when the intermediate member 7 is attached to the attachment portion 62.

The second contact portion 716 is a columnar convex portion that protrudes from the surface 71B in the + Z direction, and is positioned at the approximate center of the end portion on the + X direction side of the surface 71B. That is, the second contact portion 716 is located on the opposite side of the convex portion 713 and the first contact portion 715 across the opening 711. The second contact portion 716 contacts the bottom surface (surface along the XY plane) of the recess 6221 when the intermediate member 7 is attached to the attachment portion 62.
In addition, although mentioned later in detail, the protrusion dimension of the said convex part 713, the 1st contact part 715, and the 2nd contact part 716 from the surface 71B which is a flat surface is substantially the same. That is, the protrusion direction front ends of the convex portion 713, the first contact portion 715, and the second contact portion 716 are located on the same plane along the XY plane.

[Configuration of extension part]
As illustrated in FIGS. 9 and 10, the extending portion 72 extends from the end portion of the main body portion 71 on the −Y direction side to the −Z direction side. The extending portion 72 is a portion that faces the bottom surface portion 52 of the container 5 and supports the container 5. Such an extension part 72 includes two insertion parts 721, two protrusions 722, a recess 723, two openings 724, and a heat dissipation part 725.
The two inserted portions 721 are holes that penetrate the extending portion 72 along the + Y direction. The inserted pins 534 of the container 5 are inserted into the inserted parts 721, respectively, and the container 5 is attached to the extension part 72. As described above, since the pin 534 is inserted into the inserted portion 721, the heat of the light source device 41 (container 5) is transmitted to the extending portion 72.
The two convex portions 722 are located around the two inserted portions 721 and slightly protrude in the + Y direction from the surface 72A of the extending portion 72 on the + Y direction side. These convex portions 722 are in contact with portions around the pins 534 in the container 5.
The recess 723 is located between the two protrusions 722 at the end of the surface 72A on the −Z direction side. The concave portion 723 is formed according to the convex portion 535.

The two openings 724 are substantially rectangular openings formed across the main body 71 and the extension 72. That is, each opening 724 is formed between the end of the extending portion 72 on the main body 71 side and the inserted portion 721. The dimension in the + X direction of each of the two openings 724 is set to be approximately the same as the dimension in the + X direction of the convex part 722. Thus, each opening 724 is formed so that the heat of the light source device 41 transmitted to the extending portion 72 via the inserted portion 721 and the convex portion 722 is not easily conducted to the main body portion 71. .
As shown in FIG. 10, the heat radiating portion 725 is located on a surface 72 </ b> B on the opposite side to the surface 72 </ b> A that contacts the container 5 in the extending portion 72. The heat radiating portion 725 is located between the two openings 724 in the surface 72B. That is, the heat radiation part 725 is formed at a position where the heat from the light source device 41 is most easily transmitted in the extension part 72. The heat dissipating part 725 has a fin shape constituted by irregularities, and enlarges the surface area of the extending part 72. The heat transferred from the light source device 41 is radiated by the heat radiating unit 725.

[Configuration of protrusions]
As shown in FIGS. 9 and 10, the protruding portion 73 is a portion that protrudes in the −Z direction side from the end portion on the + X direction side in the main body portion 71. Specifically, the protrusion 73 includes a first surface portion 731 extending along the YZ plane from the end portion, and a second surface portion 732 extending along the XY plane connected to the end portion on the −Z direction side of the first surface portion 731. And have a substantially L-shape.
The first surface portion 731 is disposed at a position facing the first surface 623A of the attachment portion 62, and suppresses the light emitted from the light source device 41 from entering the first surface 623A.
The 2nd surface part 732 is arrange | positioned in the position facing the surface orthogonal to the said 1st surface 623A, and suppresses that the said light injects into a part of the said surface.

Such a protrusion 73 has a recess 74, a first plate-like portion 75, and a second plate-like portion 76.
The concave portion 74 is located at the intersection of the first surface portion 731 and the second surface portion 732 and at a portion on the + Y direction side in the protruding portion 73. When the light source device 41 (housing body 5) is attached to the intermediate member 7 from the + Y direction side, the locking portion 533 is inserted into the recess 74 from the + Y direction side. Thereby, the protrusion 73 supports the light source device 41 together with the extension 72.

The first plate-like portion 75 corresponds to the fixing portion of the present invention, and is a plate-like portion that extends in the + X direction from the end on the + X direction side at the edge of the recess 74. The first plate-like portion 75 is disposed at a position facing the upper side surface 623B1 of the protruding portion 623, and the first plate-like portion 75 has a hole 751 and a convex portion 752.
The hole 751 is formed substantially at the center of the first plate-like part 75, and a screw S1 that is fixed to the screw hole 6232 (see FIG. 8) and attaches the intermediate member 7 to the attachment part 62 is inserted into the hole 751. Is done.
The convex portion 752 corresponds to the main body portion-side convex portion (connecting portion) of the present invention, is located on the surface 75A on the + Z direction side of the first plate-like portion 75, and is formed annularly around the hole portion 751. Yes. The surface on the + Z direction side of the convex portion 752 is in contact with the surface on the −Z direction side of the convex portion 6231.

The second plate-like portion 76 corresponds to a fixing portion of the present invention, and is connected to an end portion on the −Z direction side of the first surface portion 731 and a portion on the −Y direction side of the second surface portion 732. It is a plate-like part extending along the + X direction at the position. The second plate-like portion 76 is disposed at a position facing the lower side surface 623B2 of the projecting portion 623, and the second plate-like portion 76 has a hole 761, a convex portion 762, and a positioning projection 763.
The hole 761 is formed substantially at the center of the second plate-like part 76, and a screw S1 that is fixed to the screw hole 6234 (see FIG. 8) and attaches the intermediate member 7 to the attachment part 62 is inserted into the hole 761. Is done.
The convex portion 762 corresponds to a main body portion side convex portion (connecting portion) of the present invention, is located on the surface 76A on the + Z direction side of the second plate-like portion 76, and is formed in an annular shape around the hole portion 761. Yes. The surface on the + Z direction side of the convex portion 762 abuts on the surface on the −Z direction side of the convex portion 6233.
The positioning protrusion 763 is located on the surface 76A and protrudes from the surface 76A in the + Z direction, and is inserted into the positioning hole 6235 to position the intermediate member 7.

[Mounting structure of intermediate member]
11 to 13 are views showing a state in which the intermediate member 7 is fixed to the optical component casing 6. That is, FIGS. 11 to 13 are side views of the state in which the intermediate member 7 is fixed to the optical component housing 6 as viewed from the + X direction side, the −X direction side, and the + Y direction side.
As shown in FIG. 11, the intermediate member 7 is fixed to the optical component casing 6 with screws S1. A nut S2 is screwed onto such a screw S1. Specifically, as described above, the screw S1 is inserted through the hole 714 of the main body 71, the hole 751 of the first plate 75, and the hole 761 of the second plate 76, respectively. As shown in FIG. 11, the nut S <b> 2 is disposed at a position on the + Z direction side of the screw holes 6232 and 6234 of the mounting portion 62, and is screwed into the screw S <b> 1 inserted through the screw holes 6232 and 6234.
The nut S2 may be screwed into the screw S1 inserted through the screw hole 6213. Thereby, the intermediate member 7 is fixed to the optical component housing 6.

As shown in FIGS. 11 to 13, the intermediate member 7 is fixed to the optical component housing 6 with a certain gap GP (GP1 to GP3) opened. The dimension in the direction along the + Z direction of the convex part 713 is set to be larger than the depth dimension of the second concave part 6212, and the dimension in the direction along the + Z direction of the first contact part 715 is the dimension of the first concave part 6211. It is set larger than the depth dimension. The dimension of the second contact part 716 in the direction along the + Z direction is set larger than the depth dimension of the recess 6221. For this reason, a gap GP1 is formed between the main body 71 and the first standing part 621 and the second standing part 622 of the mounting part 62, as shown in FIG. 12, and the dimension L1 of the gap GP1 is, for example, , Approximately 0.35 mm.
That is, in the main body 71, only the surface on the + Z direction side of the convex portion 713, the first contact portion 715, and the second contact portion 716 is the attachment portion 62 (the first standing portion 621 and the second standing portion 622). Abut.

Further, each of the surface on the + Z direction side of the convex portion 752 of the first plate-like portion 75 and the convex portion 762 of the second plate-like portion 76 of the intermediate member 7 is a protruding portion of the mounting portion 62 of the optical component housing 6. 623 is in contact with the surface on the −Z direction side of the convex portions 6231 and 6233. In addition, the dimensions of the convex portions 752, the convex portions 762, the convex portions 6231, and the convex portions 6233 in the direction along the + Z direction are set to be substantially the same. For this reason, as shown in FIG. 13, a gap GP2 is formed between the first plate-like portion 75 and the mounting portion 62, and the dimension L2 of the gap GP2 is set to 0.60 mm, for example. . Further, as shown in FIG. 11, a gap GP3 is formed between the second plate-like portion 76 and the mounting portion 62. For example, the dimension L3 of the gap GP3 is set to about 0.68 mm. .
That is, in the first plate-like portion 75 and the second plate-like portion 76, only the surface on the + Z direction side of the convex portion 752 and the convex portion 762 is in contact with the attachment portion 62 (projecting portion 623).
In the present embodiment, the dimensions L1 to L3 of the gaps GP1 to GP3 are different from each other. However, the dimensions L1 to L3 of the gaps GP1 to GP3 are set to the same dimension. May be.

[Heat transfer from light source device]
When the intermediate member 7 is fixed to the optical component housing 6 as described above, the light source device 41 is fixed to the intermediate member 7, and the state shown in FIG. The temperature of the device 41 rises. The heat of the light source device 41 is transmitted to the intermediate member 7 from the locking portion 533 that engages with the intermediate member 7 of the container 5 and the two pins 534.
Here, in the container 5, the cooling gas flowing through the container 5 of the light source device 41 flows from the introduction port 5 </ b> C <b> 1 of the duct member 5 </ b> C of the container 5 and flows toward the exhaust port 5 </ b> C <b> 2 of the right side surface part 56. Therefore, the vicinity of the two pins 534 has the highest temperature.
In contrast, in the present embodiment, two openings 724 are formed in the extended portion 72 at positions on the + Z direction side of the two inserted portions 721 into which the two pins 534 are inserted. A heat radiating portion 725 is formed between the portions 724. For this reason, even if the heat from the two pins 534 is transmitted to the extending portion 72 and is conducted in the + Z direction along the convex portion 722, the heat is conducted to the main body portion 71 through the opening 724 at the shortest distance. Is suppressed. Further, when the cooling gas flows through the opening 724 by the cooling device or the like, the intermediate member 7 (particularly, the main body portion 71 and the extension portion 72) is cooled by the cooling gas, so that the temperature of the intermediate member 7 rises. Is suppressed. Furthermore, since the heat radiation part 725 is formed, the heat can be radiated by the heat radiation part 725.

  Further, as described above, in the present embodiment, the intermediate member 7 is fixed with the gap GP in the optical component housing 6, so that the intermediate member 7 and the optical component housing 6 are in contact with each other. Since the area can be reduced, the heat is suppressed from being transmitted to the optical component casing 6. Further, the contact portion between the intermediate member 7 and the optical component housing 6 is located outside the light emitting surface 41A of the light source device 41 and is fixed to the two portions (first plate) by the screw S1. The second plate-like portion 75 and the second plate-like portion 76) are located on the light source device 41 side from the light emitting surface 41A, that is, in the −Z direction. For this reason, it is difficult for the heat to be transmitted even at a portion where the intermediate member 7 and the optical component housing 6 abut.

[Effect of the embodiment]
The projector 1 according to the present embodiment described above has the following effects.
Since the light source device 41 is attached to the optical component housing 6 via the intermediate member 7, the light source device 41 (housing body 5) is compared to the case where the light source device 41 is directly connected to the optical component housing 6. This heat can be made difficult to transfer to the optical component casing 6. Moreover, since the intermediate member 7 to which the heat of the container 5 formed of the metal material (magnesium) is directly transmitted is formed of the metal material (magnesium), the heat is transmitted to the intermediate member 7. In addition, part of the heat is dissipated. According to this, after at least a part of heat from the light source device 41 is radiated by the intermediate member 7, it is transmitted to the optical component housing 6 formed of the resin material. Therefore, deterioration of the optical component casing 6 can be suppressed.
Here, when the optical component casing 6 is deteriorated, the central axis of the light emitted from the light source device 41 may be shifted from the designed optical axis. In this case, since the light emitted from the light source device 41 cannot be used effectively, the light amount of the image projected from the projection optical device 46 of the projector 1 may be reduced.
On the other hand, in this embodiment, since the deterioration of the optical component casing 6 can be suppressed, the reliability of the projector 1 can be improved.

Here, it is known that a metal material expands at a high temperature. For this reason, when the components of the metal material forming the container 5 and the metal material forming the intermediate member 7 are different, the coefficient of expansion due to the rise in heat is different, so when the light source device 41 cannot be mounted on the intermediate member 7, And there is a possibility that the light source device 41 cannot be removed from the intermediate member 7.
On the other hand, in this embodiment, since the container 5 and the intermediate member 7 are formed of the same metal material, even if the container 5 and the intermediate member 7 are expanded by heat, a light source is provided to the intermediate member 7. The device 41 can be easily detached.

  The convex portions 752 and 762 of the first plate-like portion 75 and the second plate-like portion 76 that are connected to the optical component housing 6 are positioned at the protruding portions 73 that are different from the extending portions 72 that are connected to the container 5. Therefore, the heat of the container 5 conducted to the intermediate member 7 through the extending portion 72 can be made difficult to be transmitted to the optical component casing 6. Accordingly, it is possible to suppress deterioration of the convex portion 752 of the first plate-like portion 75 and the convex portion 762 of the second plate-like portion 76, and as a result, the main body portion 71 and the second plate-like portion 76 are affected by the first plate-like portion 75 and the second plate-like portion 76. Deterioration of the optical component casing 6 connected to the protrusion 73 can be suppressed.

  Since the intermediate member 7 and the optical component housing 6 are in contact with only the convex portion 713 and the convex portions 752 and 762, the entire region of the main body 71 and the entire region of the optical component housing 6 are in contact with each other. In comparison, the contact area between the optical component housing 6 and the main body 71 can be reduced. Therefore, it is possible to make it difficult for heat to be transmitted from the main body 71 to the optical component housing 6.

  Since the convex portions 752 and 762 and the convex portions 6231 and 6233 come into contact with each other when the intermediate member 7 is attached to the optical component housing 6, the entire region of the main body portion 71 and the entire region of the optical component housing 6 As compared with the case where the abutment contacts, the heat transmitted to the main body 71 can be suppressed from being transmitted to the optical component casing 6. Further, since both the intermediate member 7 and the optical component housing 6 are provided with the convex portions, for example, compared with the case where the convex portions are provided only on the intermediate member 7, the optical component housing 6 is provided. It is possible to suppress the deterioration of the portion where the convex portion contacts.

Here, since the screw is generally formed of a metal material having a high thermal conductivity, the temperature of the screw is likely to rise more than that of the optical component casing 6 formed of a resin material, for example.
On the other hand, in this embodiment, since the convex part 713 and the convex parts 752 and 762 have the hole parts 714, 751, and 761 through which the screw S1 is inserted, the screw S1 is connected to the convex part 713 and the convex part. 752, 762. Therefore, it is possible to suppress the heat from the screw S1 from being transmitted to the optical component casing 6.

Here, in the container 5, the cooling gas flowing through the container 5 of the light source device 41 flows from the introduction port 5 </ b> C <b> 1 of the duct member 5 </ b> C of the container 5 and enters the exhaust port 5 </ b> C <b> 2 of the right side surface portion 56 of the container 5. Since it circulates toward the top, the vicinity of the two pins 534 has the highest temperature.
On the other hand, according to the present embodiment, since the two pins 534 of the container 5 are inserted into the inserted portion 721 of the extending portion 72, for example, the portion where the temperature rises most is fixed to the main body portion 71. Compared with the case where it is done, it can suppress that the temperature of the intermediate member 7 rises. Further, since the opening 724 is formed on the main body 71 side with respect to the inserted portion 721, the heat transmitted from the container 5 to the extending portion 72 of the intermediate member 7 is linearly conducted to the main body 71. Can be suppressed. That is, since the heat of the extension part 72 is conducted to the main body part 71 while avoiding the opening part 724, it is possible to suppress the heat of the main body part 71 from rising compared to the case where the opening part 724 is not formed.

  Since the heat radiating portion 725 is formed in the extending portion 72, the heat from the container 5 can be radiated by the heat radiating portion 725. Therefore, since heat can be further suppressed from being transmitted to the main body 71, deterioration of the optical component casing 6 can be further suppressed.

  Since the locking portion 533 provided at a position different from the two pins 534 is inserted into the concave portion 74 formed at a position opposite to the extending portion 72 in the main body portion 71 (projecting portion 73), the container 5 is supported by the intermediate member 7 by a locking portion 533 and two pins 534 located at different portions. According to this, the container 5 can be reliably fixed to the intermediate member 7.

  Since the first plate-like portion 75 and the second plate-like portion 76 are located on the side opposite to the light traveling direction (−Z direction side) with respect to the light exit surface 41A of the light source device 41, the first plate-like portion. The light from the light source device 41 is not irradiated to the part 75 and the second plate-like part 76. Therefore, since it can suppress that the temperature of the 1st plate-shaped part 75 and the 2nd plate-shaped part 76 rises, it suppresses that the heat from the said light source device 41 is transmitted from the intermediate member 7 to the housing 6 for optical components. And deterioration of the optical component casing 6 can be suppressed.

[Modification of Embodiment]
The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In the above embodiment, the intermediate member 7 is formed of the same metal material (for example, magnesium) as the container 5. However, the present invention is not limited to this. For example, the intermediate member 7 may be formed of a metal material different from the container 5.
Moreover, the intermediate member 7 does not need to be comprised with a metal material. That is, the intermediate member 7 only needs to be made of a material that can suppress the heat from the container 5 from being transmitted to the optical component casing 6. For example, the intermediate member 7 may be formed of heat resistant glass or the like.

  In the above-described embodiment, the first plate-like portion 75 and the second plate-like portion 76 are provided on the protruding portion 73, and the first plate-like portion 75 and the second plate-like portion 76 are the light emitting surface 41 </ b> A of the light source device 41. More than the -Z direction side (outgoing direction base end side). However, the present invention is not limited to this. For example, the first plate-like portion 75 and the second plate-like portion 76 may be provided on the second upright portion 622. In this case, the attachment portion 62 may not have the protruding portion 623. According to this, one screw S <b> 1 is fixed to the first upright portion 621, and the other two screws S <b> 1 are fixed to the second upright portion 622. Even in this case, the first plate-like portion 75 and the second plate-like portion 76 are located on the outer side (the end portion on the + X direction side) of the light emitting surface 41A of the light source device 41. Since possibility that the emitted light will inject is low, there can exist an effect similar to the said embodiment.

In the above embodiment, the main body 71 has the convex portion 713, and the first plate-like portion 75 and the second plate-like portion 76 have the convex portion 752 and the convex portion 762. However, the present invention is not limited to this. For example, the main body 71, the first plate-like portion 75, and the second plate-like portion 76 do not have to have the convex portion 713 and the convex portions 752 and 762. Even in this case, since the light source device 41 is attached to the optical component housing 6 via the intermediate member 7, the light source device 41 is compared with the case where the light source device 41 is directly attached to the optical component housing 6. Deterioration due to heat of the optical component casing 6 can be suppressed.
Further, in the above case, for example, a protruding portion protruding toward the intermediate member 7 from a position facing each of the convex portion 713, the convex portion 752, and the convex portion 762 in the mounting portion 62 of the optical component housing 6 is provided. It is good also as having. Even in this case, since the gap GP can be provided between the intermediate member 7 and the optical component housing 6, the same effect as in the above embodiment can be obtained.
Similarly to this, the attachment portion 62 may not have the convex portions 6231 and 6233.

  In the above embodiment, when the intermediate member 7 is attached to the optical component housing 6, the surface on the + Z direction side of the convex portion 752 and the convex portion 762 is the −Z direction of the convex portions 6231 and 6233 of the attachment portion 62. It was decided to contact the side surface. However, the present invention is not limited to this. For example, the surface on the + Z direction side of the convex portion 752 and the convex portion 762 may not contact the surface on the −Z direction side of the convex portions 6231 and 6233 of the mounting portion 62. For example, the convex portions 752 and 762 may have a shape including the convex portions 6231 and 6233. According to this, the convex part 6231 is located inside the convex part 752, and the convex part 6233 is located inside the convex part 762. In this case, the dimension in the direction along the + Z direction of the convex portions 752 and 762 and the convex portions 6231 and 6233 may be set to approximately twice that of the above embodiment. Even in this case, the same effects as in the above embodiment can be obtained.

  In the above embodiment, the screw S1 is used as the fixing member. However, the present invention is not limited to this. For example, the fixing member may be constituted by a pin and a fixing member that fixes the pin, a clip or the like, or a heat-resistant adhesive or the like. In this case, the hole for inserting the screw S1 provided in the attachment portion 62 and the intermediate member 7 may be omitted. Further, the nut S2 may be omitted.

  In the above embodiment, the container 5 includes the locking portion 533 and the two pins 534, and the locking portion 533 and the two pins 534 are inserted into the recess 74 and the insertion target portion 721 of the intermediate member 7. It was decided to be fixed by. However, the present invention is not limited to this. For example, the container 5 may have rail members extending in the + Y direction on the side surface portions 55 and 56, and the intermediate member 7 may have a groove for supporting the rail. Even in this case, the container 5 can be fixed to the intermediate member 7.

  In the above embodiment, the extension portion 72 has the two openings 724. However, the present invention is not limited to this. For example, the extension 72 may not have the opening 724, or may have only one of the openings 724. Moreover, although the said opening part 724 was formed in the main-body part 71 side rather than the two to-be-inserted parts 721, it is not restricted to this but is located in a line in the direction along the two to-be-inserted parts 721 and + Z direction. It is good also as being formed, and good also as being located in the opposite direction side with respect to the main-body part 71. Further, three or more openings 724 may be formed.

  In the above embodiment, the extending part 72 has the heat radiating part 725. However, the present invention is not limited to this. For example, the extension 72 may not be provided. In addition, the heat radiating portion 725 is positioned between the two openings 724 in the 72B surface on the −Y direction side of the extending portion 72, but is not limited thereto, and is located, for example, outside the opening 724. Alternatively, it may be positioned on the surface 72A on the + Z direction side. Furthermore, although the heat radiating portion 725 is formed by a plurality of irregularities, a plurality of plate-like fins extending along the flow direction of the circulating cooling gas may be provided.

In the above embodiment, the container 5 has the locking portion 533 at a position different from the two pins 534. However, the present invention is not limited to this. For example, the locking portion 533 may not be provided as the second protrusion. Even in this case, the container 5 can be fixed to the intermediate member 7 by at least two pins 534.
In the above embodiment, the container 5 has the two pins 534. However, the present invention is not limited to this. For example, the container 5 may have two inserted portions instead of the two pins 534, and the extending portion 72 may have a protruding portion that protrudes in the + Y direction instead of the inserted portion 721. Even in this case, the same effects as in the above embodiment can be obtained.

In the above embodiment, the projector 1 includes the three light modulation devices 453 (453R, 453G, and 453B). However, the present invention is not limited to this, and the present invention can also be applied to a projector including, for example, two or less or four or more light modulation devices.
Further, the light modulation device 453 has a configuration including a liquid crystal panel in which the light incident surface and the light emitting surface are different. However, the present invention is not limited to this, and a light modulation device including a reflective liquid crystal panel in which the light incident surface and the light emitting surface are the same may be employed. In addition, as long as the light modulation device can modulate an incident light beam and form an image according to image information, a device using a micromirror, for example, a device using a DMD (Digital Micromirror Device) or the like can be used. You may employ | adopt a light modulation apparatus.

  DESCRIPTION OF SYMBOLS 1 ... Projector, 5 ... Housing, 6 ... Optical component housing (holding member), 7 ... Intermediate member, 41 ... Light source device, 41A ... Light emission surface, 453 ... Light modulation device, 46 ... Projection optical device, 62 ... mounting part, 71 ... main body part, 72 ... extending part, 73 ... projecting part, 74 ... recessed part, 75 ... first plate-like part (fixed part), 76 ... second plate-like part (fixed part), 533 ... Locking part (second projecting part), 534 ... pin (first projecting part), 621 ... first standing part, 622 ... second standing part, 623 ... projecting part, 713 ... projecting part (connecting part), 714 ... Hole, 715 ... first contact portion, 721 ... inserted portion, 724 ... opening portion, 725 ... heat radiation portion, 751 ... hole portion, 752 ... convex portion (connecting portion / main body portion side convex portion), 761 ... hole Part, 762 ... convex part (connecting part / main body part side convex part), 6211 ... first concave part, 6212 ... second concave part, 6231 ... convex part (holding member) (Convex part), 6232 ... screw hole, 6233 ... convex part (holding member side convex part), 6234 ... screw hole, GP, GP1, GP2, GP3 ... gap, L1, L2, L3 ... dimensions, S1 ... screw, S2 ... nut.

Claims (10)

A light source device;
A light modulation device that modulates light emitted from the light source device;
An optical component for guiding the light emitted from the light source device to the light modulation device;
A holding member that holds the optical component and is formed of a resin material;
An intermediate member attached to the holding member and supporting the light source device;
A projection optical device that projects the light modulated by the light modulation device,
The light source device is
A light source;
Containing the light source, and having a container formed of a first metal material,
The projector according to claim 1, wherein the intermediate member is made of a second metal material. The projector according to claim 1.
The projector according to claim 1, wherein the first metal material and the second metal material are the same metal material. The projector according to claim 1 or 2,
The intermediate member is
A main body facing the light exit surface of the light source device;
Extending from the main body portion in a direction opposite to the traveling direction of the light emitted from the light source device, and an extending portion that comes into contact with the container,
The main body has a connection portion connected to the holding member. The projector according to claim 3.
At least one of the main body and the holding member has a convex portion that protrudes toward the other and contacts the other. The projector according to claim 4,
The main body portion has a main body portion side convex portion protruding toward the holding member as the convex portion,
The holding member has a holding member side convex portion protruding to the main body portion side as the convex portion,
The projector is characterized in that a surface on the protruding direction side from the main body portion in the main body portion side convex portion and a surface on the protruding direction side from the holding member in the holding member side convex portion abut. The projector according to claim 4 or 5,
The projection has a hole portion through which a fixing member that fixes the intermediate member and the holding member is inserted. The projector according to any one of claims 3 to 6,
The container has a first protrusion protruding in a direction perpendicular to the traveling direction,
The extension part is
A portion to be inserted into which the first protrusion is inserted;
A projector having an opening located between the main body and the inserted portion. The projector according to claim 7,
The extension part has a heat radiating part. The projector according to claim 7 or 8,
The container has a second protrusion protruding from a position different from the first protrusion along substantially the same direction as the protrusion of the first protrusion,
The projector is characterized in that the main body portion is located at a portion opposite to the extending portion and has a recess into which the second protrusion is inserted. The projector according to any one of claims 3 to 9,
The main body is
A protrusion protruding in the opposite direction;
A fixing portion located on the protruding portion and fixed to the intermediate member,
The projector according to claim 1, wherein the fixing portion is located in the opposite direction to the light emitting surface.

Images