JP2006091058A - Projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector capable of moving a projection lens horizontally and vertically by a single operation member. <P>SOLUTION: The projector includes an illuminating device, a liquid crystal device, the projection lens 600, and a housing. The projection lens 600 has a lens barrel 610, and a lens barrel frame 620 disposed at the base end of the lens barrel 610. The housing has a lens barrel holding frame 20 for holding the lens barrel frame 620. The projection lens 600 is held by a holding means 30 and an operation lever 40 so as to be horizontally and vertically movable relative to the housing, the holding means 30 being used to hold the lens barrel frame 620 such that the lens barrel frame 620 is horizontally and vertically slidable with respect to the lens barrel holding frame 20, and the operation lever 40 being used to move the lens barrel frame 620 horizontally and vertically with respect to the lens barrel holding frame 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a projector.

  A projector including a lens shift mechanism that shifts a projection lens horizontally or vertically with respect to a housing is known. This lens shift mechanism is a mechanism for adjusting the projection position on the screen by shifting the projection lens horizontally or vertically with respect to the housing.

  FIG. 4 is a diagram for explaining a lens shift mechanism in a conventional projector. As shown in FIG. 4, a lens shift mechanism 801 in a conventional projector includes a support plate 809 that holds the lens barrels 807 and 808 so as to be slidable up and down, and is rotatably attached to the support plate 809. A shift rod 815 that engages with a nut 813 attached to the outer peripheral surfaces of 807 and 808 is provided. By rotating the shift rod 815 left and right, the lens barrels 807 and 808 are moved up and down to realize lens shift. (For example, refer to Patent Document 1).

  However, in this lens shift mechanism 801, since the projection lens 805 is moved in the vertical direction by turning the rotary knob 817 at the tip of the shift bar 815, the movement speed is slow and the projection lens 805 is moved greatly. In some cases, the rotary knob 817 has to be turned many times. Further, if it is intended to move the projection lens 805 up and down and left and right, two sets of this lens shift mechanism 801 are required, which increases the number of parts, increases the weight, decreases the assembly workability, and makes the lens shift operation complicated. It will cause problems such as.

  FIG. 5 is a diagram for explaining a lens shift mechanism in another conventional projector. As shown in FIG. 5, a lens shift mechanism 901 in another conventional projector holds a slide part 911 facing the front projection port 920a of the housing and a lens barrel 927a that is inserted into the slide part 911 so as to be slidable up and down. Holding member 912, a rotating shaft 913 provided on one lower side of the holding member 912, a long hole 914a formed in an arc shape around the rotating shaft 913, and having a long hole 914a in the arc direction. A support plate 914 provided on the side, and a shift rod 915 that has one end pivotally supported by the rotation shaft 913 and the other end supported by the support plate 914 so as to be movable up and down, and moves the holding member 912 up and down. A screw hole 915b is provided at the other end of the shift bar 915, and an adjustment screw 916 is screwed from the elongated hole 914a of the support plate 914 to the screw hole 915b of the shift bar 915 to be adjusted and fixed (for example, , See Patent Document 2).

Therefore, according to this lens shift mechanism 901, the vertical movement of the projection lens (and the lens barrel 927a) is rotated along the long hole 914a of the support plate 914 about the rotation shaft 913. Therefore, the moving speed of the projection lens can be increased.
Japanese Patent Laid-Open No. 10-171044 JP 2000-333103 A

  However, also in this lens shift mechanism 901, two sets of this lens shift mechanism 901 are necessary to realize the vertical and horizontal movements of the projection lens, which increases the number of parts, the weight, and the assembly workability. This leads to problems such as lowering and complication of lens shift operation.

  Therefore, the present invention has been made to solve such a problem, and an object thereof is to provide a projector capable of moving a projection lens horizontally and vertically by one operation member.

  The projector of the present invention includes an illumination device, an electro-optic modulation device that modulates light from the illumination device according to image information, a projection lens that projects light modulated by the electro-optic modulation device, and the illumination device. And a housing that houses the electro-optic modulation device and holds the projection lens movably horizontally and vertically, wherein the projection lens is on the base end side of the lens barrel and the lens barrel And the housing has a lens barrel holding frame for holding the lens barrel frame, and the projection lens holds the lens barrel frame with respect to the lens barrel holding frame. Horizontal and vertical slidable holding means, and an operation lever capable of moving the lens barrel frame horizontally and vertically with respect to the lens barrel holding frame. And is held vertically movable And wherein the door.

  Therefore, according to the projector of the present invention, it becomes possible to move the lens barrel frame horizontally and vertically with respect to the lens barrel holding frame by the operation lever. Therefore, the projection lens can be moved horizontally and vertically by one operation lever. It becomes possible to move to.

  Further, according to the projector of the present invention, the holding unit can hold the lens barrel frame slidably horizontally and vertically with respect to the lens barrel holding frame. Even when moved vertically, the attitude of the projection lens relative to the housing can be maintained correctly.

  In the projector according to the aspect of the invention, it is preferable that the lens barrel frame is engaged with the lens barrel holding frame by an engagement lever.

  With this configuration, the lens barrel frame can be engaged with the lens barrel holding frame by the engagement lever. Therefore, even when the projection lens is moved horizontally and vertically by the operation lever. Thus, it is possible to prevent the projection lens from rotating significantly around the projection optical axis with respect to the housing.

  In the projector according to the aspect of the invention, the lens barrel holding frame may serve as the lens barrel frame holding portion that holds the lens barrel frame, and a spring that presses the lens barrel frame against the lens barrel frame holding portion. It is preferable to have.

  With this configuration, when the lens barrel frame is held with respect to the lens barrel holding frame, the lens barrel frame can be reliably held with respect to the lens barrel holding frame. Further, when the lens barrel frame is moved horizontally and vertically with respect to the lens barrel holding frame, the lens barrel frame can be smoothly moved with a good feeling of use with respect to the lens barrel holding frame. In this case, by appropriately selecting the strength of the spring, it is possible to perform reliable holding of the lens barrel frame with respect to the lens barrel holding frame and smooth movement with a good feeling of use under optimum conditions.

  In the projector according to the aspect of the invention, the lens barrel frame serves as the lens holding frame holding portion for holding the lens barrel holding frame and the lens barrel holding frame against the lens barrel holding frame holding portion as the holding means. It is preferable to have a spring.

  Also with this configuration, when the lens barrel frame is held with respect to the lens barrel holding frame, the lens barrel frame can be reliably held with respect to the lens barrel holding frame. Further, when the lens barrel frame is moved horizontally and vertically with respect to the lens barrel holding frame, the lens barrel frame can be smoothly moved with a good feeling of use with respect to the lens barrel holding frame. In this case, by appropriately selecting the strength of the spring, it is possible to perform reliable holding of the lens barrel frame with respect to the lens barrel holding frame and smooth movement with a good feeling of use under optimum conditions.

  In the projector according to the aspect of the invention, it is preferable that a fulcrum used when the operation lever is rotated is provided.

  By configuring in this way, the operation lever can be rotated in a state where the operation lever is supported by the fulcrum, so that good operability can be obtained.

  In the projector according to the aspect of the invention, it is preferable that a movement range restricting unit for restricting a movement range of the operation lever is provided.

  With this configuration, the position of the lens barrel frame with respect to the lens barrel holding frame can be restricted to an appropriate range, and therefore the position of the projection lens with respect to the housing can be restricted to an appropriate range. It becomes like this.

  The projector of the present invention will be described below based on the embodiments shown in the drawings.

Embodiment 1
FIG. 1 is a diagram for explaining the projector according to the first embodiment. FIG. 1A is a top view of the optical system of the projector according to the first embodiment, and FIG. 1B is a partial cross-sectional view of the main part thereof.

  Projector 1000 according to Embodiment 1 includes illumination device 100, liquid crystal devices 400R, 400G, and 400B as electro-optic modulation devices that modulate light from illumination device 100 according to image information, and liquid crystal devices 400R, 400G, and 400B. A projector that includes a projection lens 600 that projects the light modulated in step S3, and a housing 10 that houses the illumination device 100 and the liquid crystal devices 400R, 400G, and 400B and that holds the projection lens 600 movably horizontally and vertically. is there.

  The illuminating device 100 includes a light source device 110 that emits focused light, a collimating lens 118 that makes light from the light source device 110 substantially parallel, and a light intensity distribution from the collimating lens 118 that is uniform. The first lens array 120 and the second lens array 130, the polarization conversion element 140 that converts non-polarized light from the second lens array 130 into polarized light, and the light from the polarization conversion element 140 are superimposed on the illuminated area. And a superimposing lens 150. The light source device 110 includes an arc tube 112, an ellipsoidal reflector 114, and an auxiliary mirror 116.

  Between the illumination device 100 and the liquid crystal devices 400R, 400G, and 400B, a color for separating the light from the illumination device 100 into red light, green light, and blue light and guiding them to the three liquid crystal devices 400R, 400G, and 400B. A separation light guide optical system 200 is provided. The color separation light guide optical system 200 includes two dichroic mirrors 210 and 220, three mirrors 230, 320 and 340, and a relay lens 330. Field lenses 240B, 240G, 350, and 310 are disposed immediately before the liquid crystal devices 400R, 400G, and 400B.

  The projection lens 600 includes a lens barrel 610 and a lens barrel frame 620 provided at the base end portion of the lens barrel 610. The housing 10 is integrally attached to the base 12 that supports an optical system such as the illumination device 100 and the liquid crystal devices 400R, 400G, and 400B, and the lens barrel holding frame 20 that holds the lens barrel frame 620. And have. As a result, the projection lens 600 is held so as to be movable horizontally and vertically with respect to the housing 10, so that the projection position on the screen can be adjusted.

  FIG. 2 is a diagram illustrating a main part of the projector 1000 according to the first embodiment. FIG. 2A is an exploded perspective view thereof, and FIG. 2B is a partial cross-sectional view thereof.

  The projector 1000 according to the first embodiment includes the lens barrel holding frame 20 that is integrally attached to the base 12 as described above, and the projection lens 600 that includes the lens barrel 610 and the lens barrel frame 620.

  The projection lens 600 includes a holding unit 30 that holds the lens barrel frame 620 slidable horizontally and vertically with respect to the lens barrel holding frame 20, and the lens barrel frame 620 horizontally and vertically with respect to the barrel holding frame 20. By the operation lever 40 that can be moved, it is held movably horizontally and vertically with respect to the lens barrel holding frame 20 (and thus the base 12 and the housing 10).

  Therefore, according to the projector 1000 according to the first embodiment, since the lens barrel frame 620 can be moved horizontally and vertically with respect to the lens barrel holding frame 20 by the operation lever 40, one operation lever 40 is provided. Thus, the projection lens 600 can be moved horizontally and vertically.

  Further, according to the projector 1000 according to the first embodiment, the holding unit 30 can hold the lens barrel frame 620 slidably horizontally and vertically with respect to the lens barrel holding frame 20. Even when the projection lens 600 is moved horizontally and vertically by 40, the projection lens 600 is prevented from being inclined with respect to the housing 10.

  In the projector 1000 according to the first embodiment, the lens barrel frame 620 is engaged with the lens barrel holding frame 20 by the engagement lever 50.

  For this reason, according to the projector 1000 according to the first embodiment, the lens barrel frame 620 can be engaged with the lens barrel holding frame 20 by the engagement lever 50, and thus the projection lens 600 is operated by the operation lever 40. When the lens is moved horizontally and vertically, the projection lens 600 is prevented from rotating significantly around the projection optical axis 600ax (see FIG. 1A) with respect to the housing 10.

  In the projector 1000 according to the first embodiment, the lens barrel holding frame 20 as the holding unit 30 presses the lens barrel frame holding portion 32 that holds the lens barrel frame 620 and the lens barrel frame 620 against the lens barrel frame holding portion 32. And a spring 34 for the purpose.

  Therefore, according to the projector 1000 according to the first embodiment, when the lens barrel frame 620 is held on the lens barrel holding frame 20, the lens barrel frame 620 can be securely held on the lens barrel holding frame 20. become able to. Further, when the lens barrel frame 620 is moved horizontally and vertically with respect to the lens barrel holding frame 20, the lens barrel frame 620 can be smoothly moved with a good feeling of use with respect to the lens barrel holding frame 20. become. In this case, by appropriately selecting the strength of the spring 34, it is possible to perform reliable holding and smooth movement of the lens barrel frame 620 with respect to the lens barrel holding frame 20 under optimum conditions.

In the projector 1000 according to the first embodiment, the lens barrel holding frame 20 is provided with a fulcrum C ₁ and an inclined hole H _{1 that} are used when the operation lever 40 is rotated in the vertical direction and the horizontal direction.

Therefore, according to the projector 1000 of embodiment 1, be pivoted in the vertical direction and horizontal direction while supporting the operation lever 40 at a fulcrum C ₁ the operating lever 40 in the inclination angle of the inclined hole H ₁ Thus, the lens barrel frame 620 can be moved in the vertical direction and the horizontal direction with respect to the lens barrel holding frame 20.

  In the projector 1000 according to the first embodiment, a movement range restriction member 44 is provided as movement range restriction means for restricting the movement range of the operation lever 40.

  Therefore, according to the projector 1000 according to the first embodiment, the position of the lens barrel frame 620 with respect to the lens barrel holding frame 20 can be regulated within an appropriate range. Can be regulated within an appropriate range.

  In the projector 1000 according to the first embodiment, the lens barrel frame 620 is attached to the lens barrel holding frame 20 as follows, for example.

With reference to FIG. 2A, the spring 34 is set on the lens barrel holding portion 32 in the lens barrel holding frame 20. Next, the lens barrel frame 620 is inserted into the lens barrel frame holding portion 32 from above.
Next, the engagement lever 50 is screwed to the lens barrel holding frame 20, and then the protrusion of the engagement lever 50 is inserted into the hole of the lens barrel frame 620. Next, the operation lever 40 is inserted into the hole of the lens barrel frame 620 and the inclined hole H ₁ (see FIG. 2B) of the lens barrel holding frame 20.
Next, the movement range regulating member 44 is arranged at a predetermined position of the housing 10. At this time, it arrange | positions so that the collar part 42 of the operation lever 40 can be seen from the opening part of the movement range control member 44.

In the projector 1000 of embodiment 1, as shown in FIG. 2 (b), movement in the horizontal direction of the projection lens 600 with respect to the housing 10 _{(M 2} direction), the operating lever from the front of the moving range regulating member 44 It carried out by moving the 40 in the horizontal direction _{(M 1} direction). In this case, the operation lever 40 is rotated to _{M 1} direction center of the inclined hole _{H 1} of the barrel holding frame 20 as a fulcrum _{C 1.} Then, the lens barrel frame 620 moves while sliding in the M ₂ direction as with respect to the barrel holding frame 20 thereto.
At this time, the lever can move the projection lens 600 with a relatively small force, and the movement amount of the operation lever 40 and the movement amount of the projection lens 600 when the operation lever 40 is moved are different. Therefore, precise position adjustment of the projection lens 600 can be realized.
The same applies to the movement of the projection lens 600 in the vertical direction with respect to the housing 10.

[Embodiment 2]
FIG. 3 is a diagram illustrating a main part of the projector according to the second embodiment. FIG. 3A is an exploded perspective view, and FIG. 3B and FIG. 3C are diagrams showing the operation.

  A projector 1000A (not shown) according to the second embodiment has basically the same configuration as the projector 1000 according to the first embodiment, but as shown in FIG. 620A, the lens barrel holding frame 20A, and the surrounding mechanism are different from those of the projector 1000 according to the first embodiment.

  However, in the projector 1000A according to the second embodiment, the projection lens 600A includes a holding unit 30A that holds the lens barrel frame 620A slidable horizontally and vertically with respect to the lens barrel holding frame 20A, and the lens barrel frame 620A. An operation lever 40A that moves horizontally and vertically with respect to the tube holding frame 20A can move horizontally and vertically with respect to the lens barrel holding frame 20A (and thus the base 12A and the housing 10A (both not shown)). Is retained.

  Therefore, according to the projector 1000A according to the second embodiment, the lens barrel frame 620A can be moved horizontally and vertically with respect to the lens barrel holding frame 20A by the operation lever 40A. As in the case of the projector 1000, the projection lens 600A can be moved horizontally and vertically by one operation lever 40A.

  Further, according to the projector 1000A according to the second embodiment, the holding unit 30A can hold the lens barrel frame 620A so as to be slidable horizontally and vertically with respect to the lens barrel holding frame 20A. As in the case of the projector 1000 according to No. 1, even when the projection lens 600A is moved horizontally and vertically by the operation lever 40A, the orientation of the projection lens 600A with respect to the housing 10A can be correctly maintained.

  In the projector 1000A according to the second embodiment, the lens barrel frame 620A is engaged with the lens barrel holding frame 20A by the engagement lever 50A. For this reason, since the lens barrel frame 620A can be engaged with the lens barrel holding frame 20A by the engagement lever 50A, projection is performed by the operation lever 40A as in the case of the projector 1000 according to the first embodiment. Even when the lens 600A is moved horizontally and vertically, the projection lens 600A is prevented from rotating significantly around the projection optical axis 600Aax (not shown) with respect to the housing 10A.

  In the projector 1000A according to the second embodiment, the lens barrel holding frame 20A includes the lens barrel frame holding portion 32A that holds the lens barrel frame 620A and the lens barrel frame 620A as the lens barrel frame holding portion 32A as the holding unit 30A. And a spring 34A for pressing the spring 34A. Therefore, similarly to the projector 1000 according to the first embodiment, when the lens barrel frame 620A is held on the lens barrel holding frame 20A, the lens barrel frame 620A is securely held on the lens barrel holding frame 20A. Will be able to. Further, when the lens barrel frame 620A is moved horizontally and vertically with respect to the lens barrel holding frame 20A, the lens barrel frame 620A can be moved smoothly with a good feeling of use with respect to the lens barrel holding frame 20A. become. In this case, by appropriately selecting the strength of the spring 34A, it is possible to reliably hold and smoothly move the lens barrel frame 620A with respect to the lens barrel holding frame 20A under optimum conditions.

In the projector 1000A according to the second embodiment, the lens barrel holding frame 20A is provided with a fulcrum C ₂ (see FIG. 3B) used when the operation lever 40A is rotated in the vertical direction and the horizontal direction. An operation lever support member 42A is provided.

  In addition, in the projector 1000A according to the second embodiment, as shown in FIG. 3A, the long hole 46A is provided as a moving range restricting means for restricting the moving range of the operation lever 40. As in the case of the projector 1000 according to the first embodiment, the position of the lens barrel frame 620A with respect to the lens barrel holding frame 20A can be regulated to an appropriate range, and therefore the position of the projection lens 600A with respect to the housing 10A is set appropriately. It becomes possible to regulate to a range.

  In the projector 1000A according to the second embodiment, the attachment of the lens barrel frame 620A to the lens barrel holding frame 20A is performed as follows, for example.

With reference to FIG. 3A, a spring 34A is set in the lens barrel holding portion 32A of the lens barrel holding frame 20A. Next, the lens barrel frame 620A is inserted into the lens barrel frame holding portion 32A from above.
Next, the engagement lever 50A is screwed to the lens barrel holding frame 20A, and then the hole of the engagement lever 50A is inserted into the protrusion of the lens barrel frame 620A.
Next, the operation lever receiving member 44A is screwed to the lens barrel frame 620A, and then the operation lever 40A is inserted into the hole of the lens barrel holding frame 20A and the long hole 46A of the lens barrel frame 20A. At this time, the operation lever 40A is inserted into a notch (see FIG. 3C) of the operation lever receiving member 44A.
Next, the operation lever support member 42A is screwed from the upper part of the operation lever 40A.

In the projector 1000A according to Embodiment 2, movement in the vertical direction of the projection lens 600A for housing 10A _{(M 4} direction), as shown in FIG. 3 (b), turning the operating lever 40A in the _{M 3} directions To do. In this case, the operation lever 40A is rotated in the _{M 3} direction the operating lever support member 42A as a fulcrum _{C 2.} Then, the lens barrel frame 620A is moved while sliding on _{M 4} directions as with respect to the barrel holding frame 20A it.
At this time, the projection lens 600A can be moved with a relatively small force by the lever principle.

Also, movement in the horizontal direction of the projection lens 600A for housing 10A _{(M 6} direction), as shown in FIG. 3 (c), carried out by moving the operating lever 40A in the horizontal direction _{(M 5} direction). In this case, the operation lever 40A is rotated in the _{M 5} direction the operating lever support member 42A as a fulcrum _{C 2.} Then, the lens barrel frame 620A is moved while sliding in the _{M 6} direction as with respect to the barrel holding frame 20A it.

  The projector of the present invention has been described based on each of the above embodiments. However, the present invention is not limited to each of the above embodiments, and can be implemented in various modes without departing from the scope of the invention. For example, the following modifications are possible.

(1) Although the projectors 1000 and 1000A of the above embodiments are transmissive projectors, the present invention can also be applied to a reflective projector. Here, “transmission type” means that an electro-optic modulation device as a light modulation means, such as a transmission type liquid crystal device, transmits light, and “reflection type” This means that an electro-optic modulation device as a light modulation means, such as a reflective liquid crystal device, is a type that reflects light. Even when the present invention is applied to a reflective projector, the same effect as that of a transmissive projector can be obtained.

(2) Although the projectors 1000 and 1000A of the above embodiments use a liquid crystal device as an electro-optic modulation device, the present invention is not limited to this. In general, the electro-optic modulation device may be any device that modulates incident light in accordance with image information, and a micromirror light modulation device or the like may be used. For example, a DMD (digital micromirror device) (trademark of TI) can be used as the micromirror light modulator.

(3) The projectors 1000 and 1000A of the above embodiments are configured such that the lens barrel is held by the lens barrel holding portion of the lens barrel holding frame, but the present invention is not limited to this. The lens barrel holding frame may be configured to be held by the lens barrel holding frame holding portion of the lens barrel frame.

FIG. 3 is a diagram for explaining the projector according to the first embodiment. FIG. 3 is a diagram illustrating a main part of the projector according to the first embodiment. FIG. 5 is a diagram illustrating a main part of a projector according to a second embodiment. The figure shown in order to demonstrate the lens shift mechanism in the conventional projector. The figure shown in order to demonstrate the lens shift mechanism in the other conventional projector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Housing | casing, 12 ... Base, 20, 20A ... Lens barrel holding frame, 30, 30A ... Holding means, 32, 32A ... Lens barrel frame holding part, 34, 34A ... Spring, 40, 40A ... Control lever, 42 ... Collar part, 42A ... operation lever support member, 44 ... movement range regulating member, 44A ... operation lever receiving member, 46A ... long hole, 50, 50A ... engagement lever, 100 ... lighting device, 110 ... light source device, 112 ... light emission Tube: 114 ... Ellipsoidal reflector, 116 ... Auxiliary mirror, 118 ... Parallelizing lens, 120 ... First lens array, 130 ... Second lens array, 140 ... Polarization conversion element, 150 ... Superposition lens, 200 ... Color separation light guide Optical system, 210, 220 ... Dichroic mirror, 230, 320, 340 ... Mirror, 330 ... Relay lens, 240B, 240G, 310, 350 ... Field lens , 400R, 400G, 400B ... liquid crystal device, 500 ... cross dichroic prism, 600, 600A ... projection lens, 600ax ... projection optical axis, 610, 610A ... barrel, 620, 620A ... barrel frame, 801, 901 ... lens shift Mechanism, 805 ... Projection lens, 807, 808 ... Lens barrel, 809 ... Support plate, 810 ... Prism stand, 811 ... Holding base, 812 ... Auxiliary plate, 813 ... Nut, 814 ... Bearing, 815 ... Shift rod, 816 ... Threaded part 817 Rotating knob 911 Slide part 912 Holding member 913 Rotating shaft 914 Support plate 914 a Long hole 915 Shift rod 915 b Screw hole 915 c Projection 916 ... Adjustment screw, 920 ... Case, 920a ... Case front projection port, 927a ... Tube, 1000 ... Projector

Claims (6)

A lighting device;
An electro-optic modulator that modulates light from the illumination device according to image information;
A projection lens for projecting light modulated by the electro-optic modulator;
A projector including a housing for housing the illumination device and the electro-optic modulation device and holding the projection lens movably horizontally and vertically;
The projection lens has a lens barrel and a lens barrel frame provided on the base end side of the lens barrel,
The housing has a lens barrel holding frame for holding the lens barrel frame,
The projection lens is configured to hold the lens barrel frame slidably horizontally and vertically with respect to the lens barrel holding frame, and to move the lens barrel frame horizontally and vertically with respect to the lens barrel holding frame. And a control lever that can be moved so as to be movable horizontally and vertically with respect to the housing. The projector according to claim 1, wherein
The projector, wherein the lens barrel frame is engaged with the lens barrel holding frame by an engagement lever. The projector according to claim 1 or 2,
The lens barrel holding frame includes, as the holding means, a lens barrel frame holding portion that holds the lens barrel frame, and a spring that presses the lens barrel frame against the lens barrel frame holding portion. projector. The projector according to claim 1 or 2,
The lens barrel frame includes, as the holding means, a lens barrel holding frame holding portion that holds the lens barrel holding frame, and a spring that presses the lens barrel holding frame against the lens barrel holding frame holding portion. Characteristic projector. The projector according to any one of claims 1 to 4,
A projector provided with a fulcrum used for rotating the operation lever. In the projector according to any one of claims 1 to 5,
A projector having a moving range restricting means for restricting a moving range of the operation lever.

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