JP5549415B2 - Image projection device - Google Patents

Description

  The present invention relates to an image projection apparatus.

  As an image display device, a display device called a light valve using a transmission type, reflection type dot matrix liquid crystal, DMD (Digital Micro mirror Device) or the like is used, and an image displayed on the light valve is enlarged and projected on a screen. There are image projection devices that display large screens. Such an image projection apparatus is called a projector, and generally irradiates projection light from a lens from a position substantially perpendicular or nearly perpendicular to a screen.

  However, in such an image projecting device, when viewing the image projected on the screen, the image projecting device may enter the field of view, and the image may not be viewed comfortably. Further, since it is necessary to install the image projection device at a predetermined position in front of the screen, a space between the image projection device and the screen becomes a dead space, resulting in a space loss. For example, when an image displayed on the screen is described, if a person enters between the image projection device and the screen, the image displayed on the screen is partially blocked by the person, so that the image is displayed on the screen. In some cases, it is difficult to explain directly using the existing images. Furthermore, when it is desired to enlarge the image projected by the projector, the projector needs to be further away from the screen, and this space loss becomes even greater.

  For this reason, in order to solve the above-described problems, a method of fixing a projector as an image display device to a ceiling portion in a room, or a close-up projection as shown in Patent Documents 1 and 2 using reflection of projection light. A type of projector has also been proposed.

  However, the method of installing the projector on the ceiling part of the room requires work for installing the projector on the ceiling part of the room. There are problems such as the burden of removing work is heavy, the burden of normal maintenance work such as lamp replacement is heavy, and the projector is used exclusively for the room where the projector is installed and the use efficiency of the projector is reduced. ing.

  Also, in the close-up projection type projectors as shown in Patent Documents 1 and 2, etc., the upper limit of the projection light beam angle projected from the projector to the screen is limited from the viewpoint of the quality of the projected image. There is a limit to how close the projector can be, and when the screen and the projector are too close, the screen displayed by the projector becomes smaller and the displayed height becomes lower. For this reason, in order to project a display image at a fixed height position, a dedicated installation base is required. Furthermore, there is a problem that high-precision parts such as a reflection mirror constituting the projector are necessary and expensive. In order to solve such problems, an image projection apparatus as disclosed in Patent Document 5 is disclosed.

  By the way, in such an image projection apparatus, it is preferable from the viewpoint of maintenance and easy carrying that the reflection mirror or the like is not exposed when it is not in use and is as compact as possible.

  The present invention has been made in view of the above, and is an image projection apparatus that can be disposed at a position that does not interfere with a projected image with little loss when projecting an image. If not, the object is to provide a high-performance image projection apparatus that can accommodate a reflecting mirror and the like and can be easily carried in a small size.

The present invention provides an image projection apparatus that projects an image generated by an image generation unit onto a screen via a projection lens, a first reflection mirror, and a second reflection mirror, and displays the image. In the first state where the image display is not performed, the first reflecting mirror and the second reflecting mirror are housed in the body portion, and In the second state in which image display is performed, the first reflecting mirror and the second reflecting mirror are disposed outside the main body, and from the first state, the first reflecting mirror and By moving the second reflecting mirror at the same time relative to the main body portion, a third state is obtained, and by rotating the first reflecting mirror and the second reflecting mirror from the third state, Of the first reflecting mirror and the second reflecting mirror. The first reflecting mirror is connected to one end of a first operating lever formed in a rod shape, and the second reflecting mirror is , Connected to one end of a second operating lever formed in an L shape, and the other end of the first operating lever is connected to one end of the rotating lever; The other end portion of the second operating lever is connected to the other end portion of the rotating lever, and the rotating lever rotates a predetermined angle around the rotating shaft of the rotating lever. rotating the first reflector and the second reflector, der Rukoto which the arrangement of the first reflector and the second reflector from the third state to the second state It is characterized by.

  Further, the present invention is characterized in that in the first state, the projection lens is housed so as to be disposed between the first reflecting mirror and the second reflecting mirror. .

  Further, the present invention enters the third state by simultaneously moving the first reflecting mirror and the second reflecting mirror relative to the main body from the first state, and from the third state, The arrangement of the first reflecting mirror and the second reflecting mirror is changed to the second state by rotating the first reflecting mirror and the second reflecting mirror. To do.

  In the invention, it is preferable that the parallel movement is performed substantially parallel to the optical axis of the projection lens.

  In the present invention, a link mechanism member is connected to each of the first reflecting mirror and the second reflecting mirror via each holding member, and a spring portion is connected to the link mechanism member. The parallel movement is performed by a force by which the spring portion expands and contracts.

  In the invention, it is preferable that the spring portion expands and contracts in a direction substantially perpendicular to the optical axis direction of the projection lens.

  In the present invention, the first reflecting mirror is connected to one end of a first operating lever formed in a rod shape, and the second reflecting mirror is formed in an L shape. The other end of the second operating lever is connected to one end of the second operating lever, and the other end of the first operating lever is connected to one end of the rotating lever. Is connected to the other end of the rotary lever, and the rotary lever rotates a predetermined angle around the rotary shaft of the rotary lever, thereby allowing the first reflector and the first The second reflecting mirror is rotated, and the arrangement of the first reflecting mirror and the second reflecting mirror is changed from the third state to the second state.

  Further, according to the present invention, the rotating lever has an arc-shaped outer shape centering on a rotation axis of the rotating lever, and a part of the arc-shaped outer shape is provided with a notch, and the parallel lever A holding lever having a protrusion that extends in the moving direction and has a shape corresponding to the notch at one end, and in the state of parallel movement, the protrusion It has entered into the notch part of a lever, The rotation lever cannot rotate centering on the rotating shaft of the rotation lever, It is characterized by the above-mentioned.

  Further, according to the present invention, a terminal boss is provided in the main body, and when the transition from the third state to the second state occurs, a part of the holding lever contacts the terminal boss. By doing so, only the holding lever is stopped from moving in parallel, and the protrusion of the holding lever that has entered the notch of the rotating lever is separated from the notch, The rotation lever rotates about the rotation axis of the rotation lever when the protrusion of the holding lever moves away from the cutout portion of the rotation lever.

  Moreover, this invention has 1 or several other reflective mirrors other than a said 1st reflective mirror and a said 2nd reflective mirror, and the said other reflective mirror is in the said main body part in the said 1st state. It is housed and arranged outside the main body in the second state.

  Further, the invention is characterized in that the optical axis of the projection lens and the screen are arranged substantially in parallel.

Further, the present invention provides an image projection apparatus that projects an image generated by the image generation unit onto a screen via a projection lens, a first reflection mirror, and a second reflection mirror, and displays the image. The first reflecting mirror and the second reflecting mirror are housed in the main body in a first state in which a projection lens is housed and the image display is not performed. In the second state in which the image display is performed, the first reflecting mirror and the second reflecting mirror are disposed outside the main body, and the side surface of the main body has a projection lens. An alignment unit that can be tilted in a direction substantially perpendicular to the optical axis, and the alignment unit is configured to position the position in a state in which the alignment unit is tilted in a direction substantially perpendicular to the optical axis of the projection lens. The tip of the mating part and the surface including the screen are in contact with each other. Rukoto by, characterized in that it is formed so as to be able to alignment between the screen and the body portion.

  According to the present invention, there is little loss when projecting an image, and the image projecting device can be disposed at a position that does not interfere with the projected image. It is possible to provide a high-performance image projection apparatus that can store a small size and can be easily carried.

External perspective view of image projection apparatus in the present embodiment Explanatory drawing (1) of operation | movement of the 1st and 2nd reflective mirror of the image projector in this Embodiment. Operation explanatory diagram of the first and second reflecting mirrors of the image projection apparatus in the present embodiment (2) Explanatory drawing (3) of operation | movement of the 1st and 2nd reflective mirror of the image projector in this Embodiment. The figure which shows the state which is projecting the image of the image projector in this Embodiment Explanatory drawing (1) of the taking-out mechanism of a 1st reflective mirror and a 2nd reflective mirror Explanatory drawing (2) of the taking-out mechanism of a 1st reflective mirror and a 2nd reflective mirror Explanatory drawing (3) of the taking-out mechanism of a 1st reflective mirror and a 2nd reflective mirror Explanatory drawing (4) of the taking-out mechanism of a 1st reflective mirror and a 2nd reflective mirror Explanatory drawing (5) of the taking-out mechanism of a 1st reflective mirror and a 2nd reflective mirror

  Hereinafter, embodiments of the present invention will be described. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

(Image projection device)
The image projection apparatus in the present embodiment will be described with reference to FIG. The image projection apparatus according to the present embodiment includes a main body 10 and a first reflecting mirror 20 and a second reflecting mirror 30 that can be accommodated in the main body 10. The first reflecting mirror 20 is housed in a first reflecting mirror housing portion 21 provided on one surface of the main body portion 10, and the second reflecting mirror 20 faces one surface of the main body portion 10. Is housed in a second reflecting mirror housing 31 provided on the other surface. FIG. 1A shows a state where the image projection apparatus is not used in the image projection apparatus according to the present embodiment, and the first reflection mirror 20 and the second reflection mirror 30 are inside the main body 10. The state (first state) stored in the is shown. FIG. 1B shows a state (second state) in which the image projection apparatus can be used in the image projection apparatus according to the present embodiment. The first reflection mirror 20 and the second reflection are shown in FIG. The state in which the mirror 30 is taken out from the main body 10 is shown.

  As shown in FIG. 1B, the image projection apparatus according to the present embodiment takes out the first reflecting mirror 20 from the first reflecting mirror housing portion 21 in the main body 10 and installs it at a predetermined position. In addition, the second reflecting mirror 30 is taken out from the second reflecting mirror housing part 31 in the main body part 10 and installed at a predetermined position. Specifically, the first reflecting mirror 20 is taken out from the opening 22 provided in the first reflecting mirror housing portion 21 on the upper surface of the main body 10 and placed at a predetermined position. The second reflecting mirror 30 is taken out from the opening 32 provided in the second reflecting mirror housing 31 and installed at a predetermined position.

  In addition, it has the alignment part 40 in the lower part of the main-body part 10, and the main-body part 10 can be stably installed by tilting the alignment part 40 from the side surface of the main-body part 10 to a floor surface direction. . Further, the height H of the alignment portion 40 is formed such that a distance between the main body portion 10 and a screen 50 described later is a predetermined distance. That is, when the wall surface 60 or the like is used as the screen 50, the alignment unit 40 tilts the alignment unit 40 from the main body 10 and brings the tip 41 of the alignment unit 40 into contact with the wall surface 60 or the like that becomes the screen 50. The image is projected on the screen 50 in a desired state. When the alignment unit 40 is tilted from the main body 10, the side surface of the alignment unit 40 (the bottom surface when the alignment unit 40 is tilted) is substantially perpendicular to the optical axis 12a of the projection lens unit 12 described later. It is formed to become.

  Next, in the image projection apparatus according to the present embodiment, the internal operation in the main body 10 during the transition from the state shown in FIG. 1A to the state shown in FIG. This will be explained based on this. The main body unit 10 includes an image generation unit 11 and a projection lens unit 12 made of DMD or the like. As an example, the projection lens unit 12 shows a case where the first lens 13, the second lens 14, and the third lens 15 are composed of three lenses, but the present invention is not limited to this.

  First, as shown in FIG. 2, the image projection apparatus according to the present embodiment is in the state (first state) shown in FIG. 1A, that is, the first reflecting mirror 20 and the second reflecting mirror 30. The main body 10 is housed in the main body 10. In this state, the first reflecting mirror 20 and the second reflecting mirror 30 are arranged at positions facing each other with the projection lens unit 12 interposed therebetween, and the first reflecting mirror 20 and the second reflecting mirror 30 are mutually connected. The opposite surface is a mirror surface. The direction of the optical axis 12a in the projection lens unit 12 is the Z-axis direction.

  Next, as shown in FIG. 3, the first reflecting mirror 20 and the second reflecting mirror 30 are taken out from the main body 10 and set in a third state. Specifically, the first reflecting mirror 20 and the second reflecting mirror 30 are moved from the first reflecting mirror housing part 21 and the second reflecting mirror housing part 31 in the main body unit 10 to the optical axis 12a of the projection lens unit 12. Is moved substantially parallel to the direction, that is, in the + Z-axis direction. In this state, the relative positional relationship between the first reflecting mirror 20 and the second reflecting mirror 30 is the same as that shown in FIG.

  Next, as shown in FIG. 4, the first reflecting mirror 20 is tilted to a predetermined angle, and the second reflecting mirror 30 is also tilted to a predetermined angle to be in the second state. . Specifically, the first reflecting mirror 20 and the second reflecting mirror 30 are rotated about the Y-axis direction as a rotation axis, so that the first reflecting mirror 20 and the second reflecting mirror 30 are each set at a predetermined angle. Tilt to be.

  Thereafter, light for forming an image to be projected is supplied from the image generation unit 11, is reflected by the first reflecting mirror 20 and the second reflecting mirror 30 through the projection lens unit 12, and is reflected on the screen 50. An image is projected. The image generation unit 11 is adjusted so that an image projected on the screen 50 becomes a desired image via the projection lens unit 12, the first reflecting mirror 20, and the second reflecting mirror 30, and The surfaces of the first reflecting mirror 20 and the second reflecting mirror 30 are mirror-finished in a predetermined shape so that a desired image can be displayed.

  The screen 50 is installed so as to be substantially parallel to the YZ plane, and is substantially parallel to the optical axis 12a in the projection lens unit 12.

  FIG. 5 shows an external appearance of an image projection apparatus according to the present embodiment in a state where an image is projected on the screen 50. In the image projection apparatus according to the present embodiment, the image projection apparatus does not exist at a position immediately before the area 51 where the image is projected on the screen 50. For this reason, since the image displayed on the screen 50 is not disturbed by the image projection device, the comfortably displayed image can be comfortably viewed.

  Further, the image projection apparatus according to the present embodiment does not require a dedicated stand or the like. In addition, the first reflecting mirror 20 and the second reflecting mirror 30 used when projecting an image can be stored in the main body 10 of the image projecting apparatus when not projecting an image. At times, the first reflecting mirror 20 and the second reflecting mirror 30 do not get in the way. Since it can be stored in this way, the image projection apparatus can be easily carried around, and further, the room does not become a dedicated room for viewing the projected image.

(Removal mechanism)
Next, in the image projection apparatus according to the present embodiment, a mechanism for taking out the first reflecting mirror 20 and the second reflecting mirror 30 from the main body unit 10 will be described with reference to FIGS. 7 and 9, the position where the image generation unit 11 and the projection lens unit 12 are present is indicated by a two-dot chain line.

  6 and 7 show a state in which the first reflecting mirror 20 and the second reflecting mirror 30 are housed in the main body 10 (first state). FIG. 6 is an internal structural diagram in the XZ plane of the main body 10 of the image projection apparatus in the present embodiment, and FIG. 7 is an internal structural diagram in the YZ plane.

  As shown in FIG. 6, the first reflecting mirror 20 is held by a first holding member 120. The first holding member 120 holds the first reflecting mirror 20 and can adjust the inclination and positional relationship of the first reflecting mirror 20. The second reflecting mirror 30 is held by a second holding member 130. The second holding member 130 holds the second reflecting mirror 30 and can adjust the inclination and positional relationship of the second reflecting mirror 30.

  FIG. 7 shows a state where the second reflecting mirror 30 is housed in the main body 10. The second holding member 130 is held by the pressing member 110, and the pressing member 110 is movable in the Z-axis direction along the two rail portions 111 and 112 extending in the Z-axis direction. The push member 110 is connected to one end portion of the first link member 113 in a rotatable state, and one end portion of the second link member 114 is provided at a substantially central portion of the first link member 113. Are connected in a rotatable state. The other end of the first link member 113 and the other end of the second link member 114 are connected by a spring portion 115. In the state shown in FIG. It is connected to add power. Although FIG. 7 shows the case of the second reflecting mirror 30, the same pushing member is provided for the first reflecting mirror 20 and is connected to the first link member 113 described above. ing. Moreover, in this application, the member comprised by the 1st link member 113 and the 2nd link member 114 is also called a link mechanism member.

  The other end of the first link member 114 is connected so as to be movable in the expansion / contraction direction of the spring portion 115, that is, in the Y-axis direction. That is, an elongated hole 116 extending in the Y-axis direction is provided inside the main body 10, and the other end of the first link member 114 is movable in the elongated hole 116. It is connected.

  The first operating lever 140 has a rod-like or plate-like shape, and one end of the first operating lever 140 is connected to the first holding member 120. The central portion of the first operation lever 140 is attached to the push member 110 and the like so as to be rotatable about the rotation shaft 141, and a connecting portion 142 at the other end of the first operation lever 140 is described later. The rotating lever 150 is connected to one end of the rotating lever 150 in a rotatable state. In addition, a spring 143 is connected to the first operating lever 140, and in the state shown in FIG. 6, a force is applied in the direction in which the spring 143 contracts.

  The rotation lever 150 is formed in a shape having a semicircle, and is attached to the push member 110 and the like so as to be rotatable around the rotation shaft 151. A part of the outer shape of the rotary lever 150 is formed in a circular shape centering on the rotation shaft 151, and a part of the circular outer shape is provided with a notch 152, which will be described later. The protrusion 161 in the holding lever 160 is formed in a shape that can enter. In the state where the protrusion 161 in the holding lever 160 enters the notch 152, the rotating lever 150 does not rotate around the rotating shaft 151.

  The holding lever 160 is formed in a rod shape or a plate shape, and has a protruding portion 161 having a shape corresponding to the shape of the cutout portion 152 of the rotating lever 150 at one end, and a tip at the other end. Part 162. In the holding lever 160, the holding lever 160 moves along the + Z-axis direction, but when the holding lever 160 reaches a predetermined position, the distal end 162 of the holding lever 160 comes into contact with a later-described terminal boss 180 provided in the main body 10. Are arranged to be.

  The second operation lever 170 is formed in an L shape, and one end of the second operation lever 170 is connected to the second holding member 130, and the second operation lever 170 has an L shape. In the bent part, it is attached to the push member 110 or the like so as to be rotatable about the rotation shaft 171. The other end of the second operating lever 170 is connected to the other end of the rotating lever 150 in a state where it can rotate at the connecting portion 172. Further, a spring 173 is connected to the second operating lever 170, and in the state shown in FIG. 6, a force is applied in the direction in which the spring 173 contracts. In this state, the protrusion 161 of the holding lever 160 is in the cutout portion 152 of the rotation lever 150, and the rotation lever 150 does not rotate around the rotation shaft 151.

  In the image projection apparatus according to the present embodiment, when the first reflecting mirror 20 and the second reflecting mirror 30 are taken out, first, as shown in FIG. 8, the first reflecting mirror 20 and the second reflecting mirror are used. 30 including the first holding member 120, the second holding member 130, the first operation lever 140, the rotation lever 150, the holding lever 160 and the second operation lever 170 as a whole in the + Z-axis direction, The third state is assumed. Specifically, the first holding member 120, the second holding member 130, the first operation lever 140, the rotation lever 150, the holding lever 160, and the like including the first reflecting mirror 20 and the second reflecting mirror 30. The second operation lever 170 is connected to the push member 110 and the like, and the first link portion 113 and the second link portion 114 operate using the contraction force of the spring portion 115 as shown in FIG. Then, a force acts in a direction in which the pushing member 110 is pushed out of the main body 10, thereby pushing the first reflecting mirror 20 and the second reflecting mirror 30 out of the main body 10.

  8 is an internal structural diagram of the main body 10 of the image projection apparatus according to the present embodiment in the XZ plane, and FIG. 9 is an internal structural diagram in the YZ plane.

  Next, as shown in FIG. 10, the third state is shifted to the second state. Specifically, the first reflecting mirror 20 and the second reflecting mirror 30 are moved out of the main body 10, and the terminal boss 180 provided on the main body 10 and the front end 162 of the holding lever 160 come into contact with each other. In the state, the main body 160 cannot move further outward. However, the first holding 120, the second holding member 130, the first operation lever 140, the rotation lever 150, the holding lever 160, and the second operation including the first reflecting mirror 20 and the second reflecting mirror 30 are included. The lever 170 further moves in the + Z-axis direction, and the protrusion 161 of the holding lever 160 that has entered the notch 152 of the rotating lever 150 is separated from the notch 152 of the rotating lever 150. Thereby, the rotation lever 150 becomes a state which can rotate centering on the rotating shaft 151, and rotates to the rotation direction of a timepiece. Along with this rotation, the first operating lever 140 rotates around the rotation shaft 141 by the force of the spring 143, and the first support member 120 including the first reflecting mirror 20 is disposed at a predetermined position. In addition, the second operating lever 170 rotates about the rotation shaft 171 by the force of the spring 173, and the second support member 130 including the second reflecting mirror 30 is installed at a predetermined position. FIG. 10 is an internal structural diagram of the main body 10 of the image projection apparatus according to the present embodiment on the XZ plane.

  Thus, the 1st reflective mirror 20 and the 2nd reflective mirror 30 can be arrange | positioned in a predetermined position.

  After using the image projection apparatus according to the present embodiment, the first reflecting mirror 20 and the second reflecting mirror 30 are in a state as shown in FIG. 3), the first reflecting mirror 20 and the second reflecting mirror 30 are pushed into the main body 10, that is, in the −Z-axis direction against the force of the spring portion 115. In the first state shown in FIG. 6, the first reflecting mirror 20 and the second reflecting mirror 30 can be housed in the main body 10.

  In the present embodiment, the image projecting apparatus having the first reflecting mirror 20 and the second reflecting mirror 30 has been described. However, in the image projecting apparatus according to the present embodiment, the first reflecting mirror 20 and the first reflecting mirror 20 are provided. One or two or more other reflecting mirrors other than the two reflecting mirrors 30 may be provided. In this case, the other reflecting mirror is housed in the main body 10 in the first state, is taken out of the main body 10 in the second state, and is disposed at a predetermined position.

  As mentioned above, although the form which concerns on implementation of this invention was demonstrated, the said content does not limit the content of invention.

DESCRIPTION OF SYMBOLS 10 Main body part 11 Image generation part 12 Projection lens part 13 1st lens 14 2nd lens 15 3rd lens 20 1st reflective mirror 21 1st reflective mirror accommodating part 22 Opening part 30 2nd reflective mirror 31 Second reflecting mirror housing portion 32 Opening portion 40 Positioning portion 41 Tip portion 50 Screen 51 Area 110 where image is projected Push member 111 Rail portion 112 Rail portion 113 First link member 114 Second link member 115 Spring Portion 116 long hole portion 120 first holding member 130 second holding member 140 first operation lever 141 rotation shaft 142 connection portion 143 spring 150 rotation lever 151 rotation shaft 152 notch portion 160 holding lever 161 projection portion 162 tip portion 170 Second operation lever 171 Rotating shaft 172 Connection portion 173 Spring 180 Termination boss

JP 2009-122587 A JP 2008-096761 A JP 2007-225749 A JP 2009-031336 A JP 2008-096983 A

Claims (9)

In an image projection apparatus that projects an image generated by an image generation unit on a screen via a projection lens, a first reflection mirror, and a second reflection mirror, and displays an image.
A main body that houses the image generation unit and the projection lens;
In the first state where the image display is not performed, the first reflecting mirror and the second reflecting mirror are housed in the main body,
In the second state in which the image display is performed, the first reflecting mirror and the second reflecting mirror are disposed outside the main body ,
From the first state, the first reflecting mirror and the second reflecting mirror are simultaneously translated with respect to the main body portion to become a third state,
The arrangement of the first reflecting mirror and the second reflecting mirror is changed to the second state by rotating the first reflecting mirror and the second reflecting mirror from the third state. Because
The first reflecting mirror is connected to one end of a first operating lever formed in a rod shape,
The second reflecting mirror is connected to one end of a second operating lever formed in an L shape,
The other end of the first operating lever is connected to one end of the rotating lever, and the other end of the second operating lever is connected to the other end of the rotating lever. And
The rotation lever rotates a predetermined angle around the rotation axis of the rotation lever, thereby rotating the first reflection mirror and the second reflection mirror, and the first reflection mirror and the second reflection mirror. image projection apparatus according to claim der Rukoto which said second state the arrangement of the reflector from the third state.   The said 1st state WHEREIN: It accommodates so that the said projection lens may be arrange | positioned between the said 1st reflective mirror and the said 2nd reflective mirror, The Claim 1 characterized by the above-mentioned. Image projection device. The rotating lever has an arc-shaped outer shape centering on the rotation axis of the rotating lever, and a cutout portion is provided in a part of the arc-shaped outer shape,
A holding lever having a shape extending in the direction of parallel movement and having a protrusion corresponding to the notch at one end;
In the parallel movement state, the protrusion portion enters the notch portion of the rotating lever, and the rotating lever cannot rotate around the rotation axis of the rotating lever. The image projection device according to claim 1 . The body portion is provided with a terminal boss,
When shifting from the third state to the second state, a part of the holding lever and the terminal boss come into contact with each other, so that only the holding lever stops the movement of the parallel movement, and the rotation The protrusion of the holding lever that has entered the notch of the lever is separated from the notch,
From the cut chipping portion of the rotating lever, by the protrusion of the holding lever away, the rotating lever according to claim 3, characterized in that rotating around the rotation axis of the rotating lever Image projector. Having one or more other reflecting mirrors other than the first reflecting mirror and the second reflecting mirror;
The said other reflecting mirror is accommodated in the said main-body part in the said 1st state, and is arrange | positioned outside the said main-body part in the said 2nd state, Any one of Claim 1 to 4 characterized by the above-mentioned. An image projection apparatus according to claim 1. Wherein A the screen and the optical axis of the projection lens, the image projection apparatus according to any of claims 1 to 5, characterized in that it is substantially parallel. In an image projection apparatus that projects an image generated by an image generation unit on a screen via a projection lens, a first reflection mirror, and a second reflection mirror, and displays an image.
A main body that houses the image generation unit and the projection lens;
In the first state where the image display is not performed, the first reflecting mirror and the second reflecting mirror are housed in the main body,
In the second state in which the image display is performed, the first reflecting mirror and the second reflecting mirror are disposed outside the main body,
The side surface of the main body has an alignment portion that can be tilted in a direction substantially perpendicular to the optical axis of the projection lens,
The alignment unit is configured to bring the tip of the alignment unit into contact with a surface including the screen in a state where the alignment unit is tilted in a direction substantially perpendicular to the optical axis of the projection lens. it is formed so as to be able to alignment between the screen and the images projector you said.   Having one or more other reflecting mirrors other than the first reflecting mirror and the second reflecting mirror;
  The image according to claim 7, wherein the other reflecting mirror is housed in the main body portion in the first state, and is disposed outside the main body portion in the second state. Projection device.   The image projection apparatus according to claim 7, wherein an optical axis of the projection lens and the screen are arranged substantially parallel to each other.

Images