JPH1152498A - Optical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the deformation of a structural member and the deviation of an optical axis associated with the attachment of optical parts and to shorten the time required for the adjustment of the optical axis by holding a corresponding member with a coupling member by its own elasticity. SOLUTION: The hanging part outer surface 37' of a supporting member 37' fixed on a plate 32 abuts on the right surface near to the upper end of an optical part mounting member 34 and the abutting part is held elastic force that a coupling member 42 itself has. In the case of accurately attaching an optical part 33 between a pair of plates 31 and 32, the member 34 is fixed at the specified position of the plate 31 by using a screw 35 first, the member 37 is positioned along the upper surface of the plate 32 so that the outer surface 37' is brought into surface-contact with the right surface near to the upper end of the member 34 and after the member 42 is fixed on the plate 32 by a screw 39 while confirming the surface contact, the member 42 is inserted and attached to the abutting part of the member 37 and the member 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device having an optical component disposed between a pair of parallel plates, and more particularly to a projection display device, in which a plurality of liquid crystal display elements and a plurality of reflectors are provided between the pair of plates. And mounting the optical component without deformation.

[0002]

2. Description of the Related Art A projection display device enlarges the display of a transmission type liquid crystal element through an optical system and projects it on a screen. Generally, three images corresponding to the three primary colors of red, green and blue are formed in the device. To synthesize.

For this reason, three liquid crystal display elements corresponding to the three primary colors and a plurality of optical parts constituting an optical path for projecting the light emitted from the light source to the liquid crystal display element are supported between a pair of parallel plates. .

FIG. 14 is a side view schematically showing a projection type liquid crystal display device, FIG. 15 is a schematic diagram showing a plate for supporting optical components disposed in the projection type liquid crystal display device, and FIG. 16 is a projection type liquid crystal display device. It is explanatory drawing of the conventional support structure of the optical component in FIG.

[0005] The projection display device 1 of FIG. 14 is constructed by mounting a projection lens 3 and a lamp house 4 on a main body 2, and irradiating light 5 emitted from a lamp (not shown) of the lamp house 4 is filtered. 6, the light enters the main body 2 and exits from the projection lens 3 toward a screen (not shown).

The main body 2 has three liquid crystal display elements 7, 8, 9 corresponding to three primary color images, and a pair of color separation dichroic mirrors for dispersing the irradiation light 5 toward the liquid crystal display elements 7, 8, 9. 10, 11; color synthesizing dichroic mirrors 13 and 15 for synthesizing color-modulated modulated light;
2, 14 etc. are accommodated.

The mirror 12 is a dichroic mirror 10
Is reflected toward the liquid crystal display element 7, and the dichroic mirror 11 on which the reflected light from the dichroic mirror 10 is incident separates the incident light into the liquid crystal display elements 8 and 9.

[0008] The dichroic mirror 13 combines the modulated light that has been color-modulated by the liquid crystal display elements 7 and 8, and forms a mirror 14.
Reflects the modulated light color-modulated by the liquid crystal display element 9 toward the dichroic mirror 15, and the dichroic mirror 15 combines the combined light of the liquid crystal display elements 7 and 8 with the liquid crystal display element 9
Are combined, and the combined light modulated by the liquid crystal display elements 7, 8, 9 is emitted from the projection lens 3.

In FIG. 14, reference numeral 16 denotes a condenser lens, and three condenser lenses 16 are provided corresponding to the liquid crystal display elements 7, 8, and 9, and the liquid crystal display elements 7, 8, and 9 and the dichroic mirror. 10,11,1
The mirrors 3 and 15 and the mirrors 12 and 14 are supported by a pair of plates 17 and 18 as shown in FIG.

In FIG. 16, an optical component 19 is a liquid crystal display element 7 or 8 or 9 or a dichroic mirror 10 or 11 or 13 or 15 or a mirror 12 or 14 or a condenser lens 16. The optical component mounting bracket 22 is fixed to the optical component mounting bracket 22, and is fixed to the plates 17 and 18 by two pairs of screws 23.

[0011]

SUMMARY OF THE INVENTION Projection type liquid crystal display device 1
The optical component mounting bracket 2 on which the optical component 19 is mounted
2 is a pair of flat plate portions 2 that abut against the plates 17 and 18
2 'is formed, and its flat plate portion 22' is
8 and the outer dimensions of the pair of flat plate portions 22 ′ before being fixed to the plates 17 and 18 are equal to those of the plates 17 and 1.
8, the liquid crystal display device 1 has at least nine optical component mounting brackets 22, that is, three condenser lenses 16 integrated with the liquid crystal display elements 7, 8, and 9, respectively. You need nine.

Therefore, when the nine optical component mounting brackets 22 are sequentially fixed between the plates 17 and 18, work is performed with great care so as to minimize the distortion of the plates 17, 18 and the optical component 19. However, it is difficult to exactly match the optical axes of all the optical components 19,
The conventional apparatus has a problem that a projection image is likely to be deformed or color unevenness occurs due to the optical axis deviation, a time required for image adjustment is increased, and productivity is impaired.

[0013]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a conventional apparatus in which an optical component is mounted between a pair of plates. Is to reduce the time required.

According to a first optical device of the present invention for achieving the above object, an optical component mounting member having an optical component mounted thereon, a first plate having one end of the optical component mounting member mounted thereon, and A support member that contacts a predetermined portion of the optical component mounting member, a second plate that is parallel to the first plate and has the support member mounted thereon, and sandwiches a contact portion between the optical component mounting member and the support member. A connecting member is provided, and the connecting member sandwiches the corresponding contact portion by its own elasticity.

The second optical device of the present invention for achieving the above object is the first optical device of the present invention, wherein
A first through-hole in which the other end of the optical component mounting member is exposed is provided on the plate, and the support member is mounted on a surface of the second plate which is outside the first plate;
At least a part of the contact portion is exposed, and a second through hole into which the coupling member can be inserted is formed in the support member.

According to a third optical device of the present invention that achieves the above object, a concave portion is formed in which at least a part of one end of an optical component or one end of a frame on which the optical component is mounted abuts. A first plate, a second plate parallel to the first plate and formed with a through hole into which the other end of the optical component or the frame enters, and a part mounted on the second plate and a part of which is mounted on the other side. And a resilient member inserted between the other end and the support member, and the resilient member presses the other end toward the recess. In addition, the other end is sandwiched between the other end and the support member so as to press the other end toward one inner wall of the through hole.

According to a fourth optical device of the present invention that achieves the above object, a concave portion is formed in which at least a part of one end of an optical component or one end of a frame on which the optical component is mounted abuts. A first plate, a second plate formed with a through hole parallel to the first plate and into which the other end of the optical component or the frame enters, and the other end attached to the second plate. And a support member formed with a groove to which at least a part of the portion abuts, wherein the groove of the support member is formed so as to press the optical component or the frame toward the concave portion.

According to a fifth optical device of the present invention that achieves the above object, in the third or fourth optical device of the present invention, a cross section of the concave portion formed in the first plate is formed by a pair of inclined surfaces. The V-shape is formed, and the edge of one end of the optical component or the frame comes into contact with the pair of inclined surfaces.

According to a sixth optical device of the present invention for achieving the above object, in the third or fourth optical device of the present invention, the recess formed in the first plate has a vertical surface and an inclined surface. Is a cross section formed in the shape of a letter, in which one surface near one end of the optical component or the frame is in contact with the vertical surface, and the edge of the one end is in contact with the inclined surface. .

According to a seventh aspect of the present invention, there is provided the optical device of the third or fourth aspect of the invention, wherein the convex part which contacts the vicinity of the other end of the optical component or the frame is provided. This is provided on the inner wall of the through hole.

According to an eighth optical device of the present invention for achieving the above object, in the first, third or fourth optical device of the present invention, the optical component comprises an optical system of a projection type liquid crystal display device. Optical components and a transmission type liquid crystal display device.

In the first optical device of the present invention, the optical component is mounted on the optical component mounting member and the supporting member, and the contact portion between the optical component mounting member and the supporting member is formed by the elastic force of the connecting member. The optical components can be mounted according to the distance between the pair of plates. Therefore, the deformation of the plate and the optical component accompanying the mounting of the optical component is eliminated,
Optical axis deviation can be prevented.

According to the second optical device of the present invention, in the first optical device of the present invention, a coupling member can be inserted into the center of the other end of the optical component mounting member, and the optical member can be used as an optical component. The connection between the component mounting member and the support member is easy and stabilized.

According to the third and fourth optical devices of the present invention, the optical component or the frame to which the optical component is fixed is attached to the first optical device.
This eliminates the need for the optical component mounting member and its mounting in the first optical device of the present invention, and simplifies the steps required for disposing the optical component.

The fifth and sixth optical devices of the present invention are the same as the third or fourth optical device of the present invention,
The positioning means of the optical component on the first plate is the first
And facilitates the work of arranging the optical components, and is less likely to be affected by the warpage of the optical components or the frame.

According to the seventh optical device of the present invention, in the third or fourth optical device of the present invention, the positioning of the optical component or the frame with respect to the second plate is stabilized, that is, the positioning of the optical component or the frame is performed. It is less susceptible to warpage.

The eighth optical device of the present invention is limited to a projection type liquid crystal display device using a liquid crystal display element as the first, third or fourth optical device of the present invention. In addition to making it easy and accurate to mount the optical components in the liquid crystal display device, the optical axis shift in the conventional device is eliminated, and the time required for the optical axis adjustment is shortened.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of a main part of an apparatus according to a first embodiment of the present invention, FIG. 2 is an explanatory view of a connecting member insertion portion in the apparatus of FIG. 1, and FIG. FIG. 4 is an explanatory view of a connecting member insertion portion in the device of the second embodiment of the present invention, FIG. 4 is an explanatory diagram of a support member in the device of the third embodiment of the present invention, and FIG. 5 is an explanatory diagram of a connecting member using a wire. is there.

In FIG. 1, reference numeral 31 denotes the optical device main body 2
A first plate 32 for mounting optical components accommodated in (see FIG. 14), a second plate 32 for mounting optical components parallel to the plate 31, and the plate 31 corresponds to the plate 17 in FIG. 32 is the plate 18 of FIG.
Is equivalent to

The liquid crystal display element 7 or 8 or 9 shown in FIG.
Alternatively, the optical component 33 corresponding to the dichroic mirror 10 or 11 or 13 or 15, the mirror 12 or 14, the condenser lens 16, or the one in which the condenser lens 16 is integrated with the liquid crystal display elements 7, 8 and 9 is The optical component mounting member 34 mounted on the optical component mounting member 34 and mounted with the optical component 33 by the pair of holding brackets 20 is fitted (fixed) by fitting a screw 35 into a pair of screw holes provided in a predetermined portion of the plate 31. ) Is done.

A support member 37 is provided on a predetermined portion of the plate 32.
And a pair of screw holes 38 for fixing a support member 37 having an L-shaped cross section. The support member 37 is provided with a pair of screw holes 38 that fit into the screw holes 38. It is fixed to the plate 32 by screws 39.

The coupling member 42 having a U-shaped cross section is formed of a metal plate having a spring property, and the supporting member 37 fixed to the plate 32 has a pair of through holes 40 through which screws 39 pass through with a margin. A through hole 41 into which the coupling member 42 can be inserted is formed.

As shown in FIG. 2, the supporting member 37 fixed to the plate 32 has a hanging portion outer surface 37 'abutting on a right surface near the upper end of the optical component mounting member 34, and the connecting member 42 itself has the abutting portion. Hold by elastic force.

The optical component 33 is correctly positioned on the pair of plates 31.
One way to mount between the optical component mounting member 34 and the screw 32 is to first fix the optical component mounting member 34 to a predetermined position on the plate 31 and the outer surface 37 '
After the support member 37 is positioned along the upper surface of the plate 32 so as to be in surface contact with the right surface near the upper end of the plate, the coupling member 42 is fixed to the plate 32 with the screw 39 while confirming the surface contact, and then the optical component Mounting member 34 and support member 37
And the connecting member 42 is inserted into the contact portion.

In FIGS. 1 and 2, the screws 35 and 39 are fitted in the corresponding screw holes with a spring washer 43 and a flat washer 44 interposed therebetween. In FIG. 3, reference numeral 45 denotes a spacer having rubber elasticity.
It is inserted between the support member 37 mounted on the plate 32 and the optical component mounting member 34, and between the optical component mounting member 34 and the coupling member _42-1 .

[0036] Such spacer 45 is a buffer against impact externally applied or the like, a coupling member for coupling member 42 _-1, sandwiching a pair of spacers 45 having spring elasticity and coupling member 42 be the same shape It is formed wider than 42.

[0037] In FIG. 4, the support member 37 _-1, which corresponds to the support member 37 of FIGS. 1 and 2, the optical component mounting member 3
The outer surface 37 _-1 ′ of the hanging portion abutting on the upper end of the support member 4 is formed longer than that of the support member 37, and there is no equivalent to the through hole 41 of the support member 37.

Accordingly, the supporting member 3 is replaced with the supporting member 37.
When using _7-1, coupling member 42 for fixing the contact portion between the optical component attachment member 34 and the support member 37 ₁ (see FIGS. 1 and 2) is the diverging portion of the depending portion outer surface 37 _-1 ' Two are required correspondingly.

[0039] In FIG. 5, the coupling member 42 _-2 and 42 _-3 at both ends in the longitudinal direction is U-shaped, is obtained by molding a wire having a spring property, the coupling member 42 _-2 1 and FIG.
Corresponds to the coupling member 42, coupling member 42 _-3 is used for coupling of the support member 37 _-1 in FIG. The coupling member 42 or 42 _-2 to bind the contact portion of the optical component mounting member 34 and the support member 37 _-1 is resemble two required, the coupling member 42 _-3 will avoid a single .

FIG. 6 is an explanatory view of a main part of a device according to a fourth embodiment of the present invention, FIG. 7 is an explanatory view of a connecting member insertion portion in the device of FIG. 6, and FIG. FIG. 9 is an explanatory view of a characteristic portion in the apparatus of the sixth embodiment, FIG. 9 is an explanatory view of a support member used in the apparatus of the sixth embodiment of the present invention, and FIG. FIG.

In FIG. 6, reference numeral 51 denotes the optical device main body 2
A first plate 52 for mounting optical components, which is accommodated in the first plate 52 (see FIG. 14), is a second plate 52 for mounting optical components parallel to the plate 51, and the plate 51 is the plate 17 of FIG. 15 and the plate of FIG. 31 and plate 5
2 corresponds to the plate 18 of FIG. 15 and the plate 32 of FIG.

Numeral 53 denotes an optical component (or an optical component on which a frame is mounted). The optical component 53 is a liquid crystal display element 7 or 8 or 9 shown in FIG. 14, a dichroic mirror 10 or 11 or 13 or 15, or a mirror 12 or 14 or the condenser lens 16 or the liquid crystal display elements 7, 8, 9 integrated with the condenser lens 16;
And 52, a frame to be mounted on the liquid crystal display element 7,
8, 9 or dichroic mirrors 10, 11, 13,
15 or the mirrors 12 and 14 or the condenser lens 16.

An optical component 53 is provided on the plate 51.
A concave portion 54 into which one end (the lower end of the optical component 53 in the figure) is inserted is formed.
3 is formed with a through hole 55 exposing the other end (the upper end of the optical component 53 in the figure) and a screw hole 57 for mounting a support member 56.

The concave portion 54 of the plate 51 has a V-shaped cross section, and the through hole 55 is formed with a rectangular convex portion 58 with which the front surface near the upper end portion of the optical component 53 abuts.
Is fitted in the screw hole 57, so that the substantially Z-shaped support member 56 is mounted on the outer surface of the plate 52.

In order to press the optical component 53 against the concave portion 54 of the plate 51 and the convex portion 58 of the plate 52, a spacer 60 having an L-shaped cross section is attached to the support member 56. The through hole 61 provided in the support member 56 is for the penetration of a screw 59 for attaching the support member 56 to the plate 51, and the spacer 60 is made of a material having rubber elasticity, for example, silicon rubber.

As shown in FIG. 7, the optical component 53 whose lower side is inserted into and supported by the concave portion 54 is pressed toward the concave portion 54 by utilizing the rubber elasticity of the spacer 60 and the convex portion 58 of the plate 52 is formed. It will be fixed in the state pressed against. That is, the optical component 53 is
The vertical position of the optical component 53 with respect to the plate 51 is determined by the projection 58.

In FIG. 8, the lower end of the optical component (or the optical component on which the frame is mounted) 53 ′ is formed in an acute V-shape from the concave portion 54, and the V-shaped leading edge is formed in the concave portion of the plate 51. Optical component 53 'abutting on 54
Is pressed toward the recess 54 by the spacer 60, and the vicinity of the upper end of the optical component 53 'is
The second convex portion 58 is pressed.

Therefore, it is positioned by the concave portion 54,
The positioning of the optical component 53 ′, which is in a vertical state with respect to the plate 51 by the convex portion 58, with respect to the concave portion 54 is more stabilized than the optical component 53.

In FIG. 9, a supporting member 63 used in place of the supporting member 56 to which the spacer 60 is adhered includes a main portion 64 having rubber elasticity and an adhesive layer 65. The adhesive layer 65 formed on the lower surface of the thick portion of the main portion 64 is for attaching (adhering) the support member 56 to the upper surface of the plate 52. When the support member 63 is adhered to the plate 52 as shown in FIG. The thin portion of the main portion 64 protruding toward the optical component 53 presses the optical component 53 toward the concave portion 54 of the plate 51 and presses the optical component 53 against the convex portion 58 of the plate 52.

Accordingly, there is an advantage that the mounting of the support member 63 is easier than that of the support member 56. Although the optical component 53 is mounted between the pair of plates 51 and 52 in this embodiment, the support member 63 can be used for mounting the optical component 53 'instead of the optical component 53, that is, FIG. It is clear from the present embodiment that the support member 63 can be used in place of the support member 56 of FIG.

FIG. 11 is an explanatory view of a main part of a device according to a seventh embodiment of the present invention, FIG. 12 is an explanatory diagram of a concave portion for supporting an optical component in the device of the seventh embodiment of the present invention, and FIG. It is explanatory drawing of the recessed part for optical component support in the 8th Example apparatus of this invention.

In FIG. 11, an optical component 53 is mounted between the plate 51 and a plate 71 corresponding to the plate 52 of FIG. 6, and a support member 72 mounted on the outer surface of the plate 71 with a screw 59 fixes the optical component 53. Become fixed.

The difference between the plate 71 and the plate 52 is that the convex portion 58 protruding into the through hole 55 in the plate 52 has a rectangular shape, whereas the convex portion 73 protruding into the through hole 55 of the plate 71. It is a triangle, and is configured so that the optical component 53 contacts the apex of the projection 73.

The difference between the support member 72 and the support member 56 is that
In order for the substantially Z-shaped support member 72 to directly press the optical component 53, a groove 74 for pressing the optical component 53 is formed in a portion protruding above the optical component 53. Then, the support member 72 is mounted on the plate 71 by the screw 59 penetrating through the through hole 61.

That is, in FIG. 11, the optical component 53 is positioned by the concave portion 54 of the plate 51,
The supporting member 72 secures the plate 71 in a state in which the lower end of the optical component 53 is inserted into the concave portion 54 and the vicinity of the upper end is in contact with the convex portion 73. become.

Plate 7 on which triangular projection 73 is formed
In the optical device using the optical member 1, the supporting member 56 shown in FIG.
It is also possible to use the support member 56 to which is adhered.

In the optical device using the plate 71, the mounting state of the optical component 53 is stabilized as compared with the optical device using the plate 52, that is, the contact between the convex portion 58 of the plate 52 and the optical component 53 is improved. Is a line, whereas that of the convex portion 73 is a point, which stabilizes the mounting state of the optical component 53.

12A is a sectional view of a concave portion for receiving the lower end portion of the optical component, and FIG. 12B is a perspective view of the concave portion for receiving the lower end portion of the optical component. recess 76 corresponding to the recess 54 of the left and recesses 76, that is, before forming, the lower central portion of the optical component 53 and the receiving portion 76 _-1 V-shaped section abut, is provided on both sides of the longitudinal the lower end of the optical component 53 is in a pair of relief portions 76 _-2 do not abut.

Therefore, when the optical component 53 is mounted between the plate 75 having the concave portion 76 corresponding to the plate 52 and the plate 52 or 71, the optical component 5
The lower end portion of 3 abuts the receiving portion 76 _-1 only the central portion, ready both sides thereof to floating, such recesses 76, the optical components 5
Even if there is a deformation such as a warp at the lower end of 3, it is not affected by the deformation, and it is possible to stably mount and secure the appearance of the optical component 53.

13A is a cross-sectional view of a concave portion for receiving the lower end portion of the optical component, and FIG. 13B is a perspective view of the concave portion for receiving the lower end portion of the optical component. recess 79 corresponding to the recess 54 of the left recesses 79, that is, before being formed, the lower central portion of the optical component 53 and the receiving portion 79 _-1 sectional les-shaped abutting, provided on both sides of the longitudinal The optical component 53 is formed by a pair of escape portions 79 _-2 that do not come into contact with the lower end surface.

Accordingly, when the optical component 53 is mounted between the plate 78 having the concave portion 79 corresponding to the plate 52 and the plate 52 or 71, the optical component 5
The lower end portion of 3 abuts the vertical wall and the inclined surface of the receiving portion 79 _-1 only the central portion, ready both sides thereof to floating, such recesses 7
9 enables stable mounting and securing the appearance of the optical component 53 even if the lower end of the optical component 53 is deformed, such as warpage, without being affected by the deformation.

[0062]

As described above, the optical device according to the present invention eliminates the conventional distortion generated in the optical component and the optical component mounting plate due to the mounting of the optical component, and the optical axis adjustment is greatly facilitated. Was.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of main components of a device according to a first embodiment of the present invention.

FIG. 2 is an explanatory view of a coupling member insertion portion in the apparatus of FIG.

FIG. 3 is an explanatory view of a connecting member insertion portion in a device according to a second embodiment of the present invention.

FIG. 4 is an explanatory view of a support member in a device according to a third embodiment of the present invention.

FIG. 5 is an explanatory view of a connecting member using a wire.

FIG. 6 is an explanatory diagram of main components of a device according to a fourth embodiment of the present invention.

FIG. 7 is an explanatory view of a coupling member insertion portion in the device of FIG. 6;

FIG. 8 is an explanatory diagram of a characteristic portion in a device according to a fifth embodiment of the present invention.

FIG. 9 is an explanatory view of a support member used in a device according to a sixth embodiment of the present invention.

FIG. 10 is an explanatory view of a characteristic portion of the embodiment device using the support member of FIG. 9;

FIG. 11 is an explanatory view of a main part of a device according to a seventh embodiment of the present invention.

FIG. 12 is an explanatory view of a concave part for supporting an optical component in a device according to a seventh embodiment of the present invention.

FIG. 13 is an explanatory view of a concave part for supporting an optical component in an apparatus according to an eighth embodiment of the present invention.

FIG. 14 is a side view schematically showing a projection type liquid crystal display device.

FIG. 15 is a schematic diagram of a support plate for optical components provided in the projection type liquid crystal display device.

FIG. 16 is an explanatory diagram of a conventional support structure of an optical component in a projection type liquid crystal display device.

[Explanation of symbols]

1 Projection type liquid crystal display device 31, 32, 51, 52, 71, 75, 78 Optical component mounting plate 33, 53, 53 'Optical component 34 Optical component mounting member 36, 55 Through hole 37 of optical component mounting plate 37 _-1 , 56, 63, 72 Supporting members 42, 42 _-1 , 42 _-2 , 42 _-3 Coupling members 58, 73 Convex portions 54, 76, 79 protruding into the through holes of the optical component mounting plate Recess for mounting plate 60 Spacer

Claims (8)

[Claims] 1. An optical component mounting member on which an optical component is mounted, a first plate on which one end of the optical component mounting member is mounted, and a support member that partially contacts a predetermined portion of the optical component mounting member. And a second plate parallel to the first plate, on which the support member is mounted, and a coupling member for sandwiching a contact portion between the optical component mounting member and the support member. An optical device characterized in that said contact portion is sandwiched by elasticity of said optical device. 2. A second plate having a first through-hole through which the other end of the optical component mounting member is exposed, wherein a first through-hole is provided on a surface of the second plate outside the first plate. 2. The optical device according to claim 1, wherein the support member is mounted, and a second through hole through which at least a part of the contact portion is exposed and into which the coupling member can be inserted is formed in the support member. apparatus. 3. A first plate having a concave portion with which at least a part of one end of an optical component or one end of a frame on which the optical component is mounted abuts, and a first plate parallel to the first plate. A second plate formed with a through hole into which the other end of the optical component or the frame projects,
A supporting member mounted on the plate and partially protruding above the other end, and an elastic member inserted between the other end and the supporting member, wherein the elastic member is Being sandwiched between the other end and the support member so that the end is pressed toward the recess and the other end is pressed toward one inner wall of the through hole. An optical device characterized by the above-mentioned. 4. A first plate having a concave portion with which at least a part of one end of an optical component or one end of a frame on which the optical component is mounted abuts, and a first plate parallel to the first plate. A second plate formed with a through hole into which the other end of the optical component or the frame projects,
And a support member having a groove formed thereon, the groove being in contact with at least a part of the other end, wherein the groove of the support member is formed so as to press the optical component or the frame toward the recess. An optical device, comprising: 5. A concave portion formed in the first plate has a V-shaped cross section formed by a pair of inclined surfaces, and the edge of one end of the optical component or the frame is formed on the pair of inclined surfaces. The optical device according to claim 3, wherein the optical device is in contact with the optical device. 6. A concave portion formed in the first plate is a L-shaped cross section formed by a vertical surface and an inclined surface, and the vertical surface has one side near one end of the optical component or the frame. The optical device according to claim 3, wherein an edge of the one end abuts on the inclined surface. 7. The optical device according to claim 3, wherein a projection is provided on the inner wall of the through hole, the projection being in contact with the vicinity of the other end of the optical component or the frame. 8. The optical device according to claim 1, wherein the optical components are an optical component and a transmission type liquid crystal display element constituting an optical system of a projection type liquid crystal display device.