Projector

By housing the imaging unit within the projector's exterior housing and using a fixing member and cover, the projector's size is minimized, maintaining functionality and appearance.

JP2025109751AActive Publication Date: 2025-07-25SEIKO EPSON CORP
View PDF 10 Cites 0 Cited by

Patent Information

Application Number
JP2025077174
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-07-25
Estimated Expiration
2041-05-24

AI Technical Summary

Technical Problem

Existing projectors face an issue of increased size due to the protrusion of the imaging device from the housing, which affects their overall dimensions.

Method used

The projector design incorporates a housing portion that accommodates a detachable imaging unit, allowing it to be housed within the exterior housing, along with a fixing member and cover portion to secure and protect the imaging unit, ensuring it does not protrude significantly from the projector's surface.

Benefits of technology

This configuration effectively reduces the projector's overall size, enhances transportability, and improves its appearance while maintaining imaging functionality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025109751000001_ABST
    Figure 2025109751000001_ABST
Patent Text Reader

Abstract

To provide a projector that has prevented an increase in size.SOLUTION: A projector comprises: an exterior housing 100 that is provided with a storage part 400; a light source unit that is stored in the exterior housing 100 and emits light; an image forming unit that is stored in the exterior housing 100 and generates image light from the light; a projection optical unit that is attached to the exterior housing 100 and projects the image light; and a detachable imaging unit 200 that picks up an image of the projected image light. The imaging unit 200 is stored in the storage part 400.SELECTED DRAWING: Figure 13
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a projector.

Background Art

[0002] For example, Patent Document 1 discloses a technique of attaching an imaging device that images a projected image to the upper surface of a projector housing using a hook-and-loop fastener in order to automatically correct distortion and focus adjustment of an image projected from the projector.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the technique of the prior art document 1, the entire imaging device protrudes from the upper surface of the projector housing, resulting in a problem that the projector becomes larger in size.

Means for Solving the Problems

[0005] The projector includes an exterior housing provided with a housing portion, a light source unit housed in the exterior housing and emitting light, an image forming unit housed in the exterior housing and generating image light from the light, a projection optical unit attached to the exterior housing and projecting the image light, and a detachable imaging unit that images the projected image light, and the imaging unit is housed in the housing portion.

[0006] The projector includes an exterior housing, a housing portion provided in the exterior housing and accommodating a detachable imaging unit that images the projected image light, a light source unit accommodated in the exterior housing and emitting light, an image forming unit accommodated in the exterior housing and generating image light from the light, and a projection optical unit attached to the exterior housing and projecting the image light.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Best Mode for Carrying Out the Invention

[0008] In the following figures, three axes orthogonal to each other will be described as the X-axis, Y-axis, and Z-axis. The direction along the X-axis is the "X direction", the direction along the Y-axis is the "Y direction", and the direction along the Z-axis is the "Z direction". The direction of the arrow is the + direction, and the direction opposite to the + direction is the - direction. Note that the +Z direction may also be referred to as "up" or "above", and the -Z direction may be referred to as "down" or "below". Looking from the +Z direction is also referred to as a plan view or planar. Also, the surface on the + side of the Z direction is described as the upper surface, and the surface on the - side of the Z direction, which is the opposite side, is described as the lower surface.

[0009] First, with reference to FIG. 1, the configuration of the projector 1000 will be described.

[0010] As shown in FIG. 1, the projector 1000 includes an exterior housing 100, a projection optical unit 1300 disposed on the side of the first surface 100a of the exterior housing 100, an imaging unit 200 disposed in the -X direction of the projection optical unit 1300 on the first surface 100a, and a cover portion 300 that covers the imaging unit 200. The projector 1000 modulates the image light projected from the projection optical unit 1300 according to the image information and enlarges and projects the image onto a projection surface such as a screen.

[0011] The imaging unit 200 is an imaging device that captures the image light projected from the projection optical unit 1300 and automatically corrects the distortion and focus adjustment of the image light. The imaging device includes, for example, an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor).

[0012] Further, the exterior housing 100 is provided with a housing portion 400 that is recessed toward the inside of the exterior housing 100 and houses the imaging unit 200 at a corner (-X direction) of one end of the first surface 100a. The exterior housing 100 is provided with a cover portion 300 that covers the imaging unit 200 housed in the housing portion 400.

[0013] Next, while referring to FIG. 2, the internal configuration of the projector 1000 will be described.

[0014] As shown in FIG. 2, the projector 1000 includes an exterior housing 100, an imaging unit 200, a light source unit 1100, an image forming unit 1200, a projection optical unit 1300, and a control unit 500. The light source unit 1100, the image forming unit 1200, and the projection optical unit 1300 are arranged along the system optical axis L.

[0015] The exterior housing 100 has a plurality of cases such as an upper case that constitutes the upper part of the exterior housing 100 and a lower case that constitutes the lower part of the exterior housing 100. As described above, the exterior housing 100 is provided with a housing portion 400 for housing the imaging unit 200.

[0016] The light source unit 1100 includes, for example, a lamp unit 1101 composed of a white light source such as an ultra-high pressure mercury lamp or a halogen lamp, an integrator lens 1102, and a polarization conversion element 1103.

[0017] The image forming unit 1200 is a part that generates image light from the light emitted from the light source unit 1100, and includes two dichroic mirrors 1104 and 1105 as light separation elements. It also includes three reflection mirrors 1106, 1107, and 1108, and five relay lenses 1201, 1202, 1203, 1204, and 1205. Further, it includes three transmissive liquid crystal light valves 1210, 1220, and 1230 as light modulation means, and a cross dichroic prism 1206 as a light combining element.

[0018] The dichroic mirror 1104 reflects red light (R) among the polarized light beams emitted from the light source unit 1100, and transmits green light (G) and blue light (B). Another dichroic mirror 1105 reflects the green light (G) that has passed through the dichroic mirror 1104 and transmits the blue light (B).

[0019] The red light (R) reflected by the dichroic mirror 1104 is reflected by the reflection mirror 1106 and then enters the liquid crystal light valve 1210 via the relay lens 1205. The green light (G) reflected by the dichroic mirror 1105 enters the liquid crystal light valve 1220 via the relay lens 1204. The blue light (B) that has passed through the dichroic mirror 1105 enters the liquid crystal light valve 1230 via the light guide system composed of three relay lenses 1201, 1202, 1203 and two reflection mirrors 1107, 1108.

[0020] The liquid crystal light valves 1210, 1220, 1230 are respectively arranged opposite to the incident surfaces for each color light of the cross-dichroic prism 1206. The color light incident on the liquid crystal light valves 1210, 1220, 1230 is modulated based on video information (video signal) and emitted toward the cross-dichroic prism 1206. This prism is formed by bonding four right-angled prisms, and dielectric multilayer films that reflect red light and dielectric multilayer films that reflect blue light are formed in a cross shape on the inner surfaces thereof. The three color lights are synthesized by these dielectric multilayer films, and the light representing the color image is synthesized.

[0021] The projection optical unit 1300 is arranged to be replaceable and includes a projection lens 1207, a part of which protrudes from the exterior housing 100. Specifically, the projection optical unit 1300 is attached to the exterior housing 100 via a lens holding portion and a lens shift mechanism (not shown). The synthesized image light is projected onto the screen 1400 by the projection lens 1207, and the image is enlarged and displayed.

[0022] The liquid crystal light valve 1210 has a pair of polarizing elements arranged in a cross Nicol configuration with a gap between the incident side and the emission side of the color light of a liquid crystal device (not shown). The same applies to the other liquid crystal light valves 1220 and 1230.

[0023] The control unit 500 includes electronic components such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The control unit 500 controls the operations of each part of the projector 1000, for example, controls related to image projection. In particular, in the case of this embodiment, the control unit 500 controls the image based on the image information obtained by the imaging unit 200.

[0024] Next, with reference to FIGS. 3 to 13, the procedure for attaching the imaging unit 200 to the projector 1000 and the configuration of the housing unit 400 in particular will be described.

[0025] First, as shown in FIG. 3, prepare the projector 1000. A cover unit 300 is attached to the first surface 100a of the exterior housing 100 of the projector 1000.

[0026] Next, as shown in FIG. 4, remove the cover unit 300 from the exterior housing 100. The cover unit 300 may be fixed to the exterior housing 100 with screws or may be fitted along a guide groove. By removing the cover unit 300 from the exterior housing 100, as shown in FIGS. 4 and 5, a housing unit 400 for housing the imaging unit 200 appears on the first surface 100a of the exterior housing 100. Note that a fixing member 600 for attaching the imaging unit 200 is arranged in the housing unit 400.

[0027] Next, as shown in FIG. 6, remove the fixing member 600 from the housing portion 400. The fixing member 600 is fixed, for example, to the side surface 400a in the +Y direction of the housing portion 400 by three screws 610a, 610b, and 610c as shown in FIG. 8. The fixing member 600 can be prevented from rotating in the plane direction of the side surface 400a by being fixed with at least two screws 610a, 610b in the X direction and one screw 610c in the Z direction. Note that the fixing member 600 may be fixed with the two screws 610a, 610b in the X direction.

[0028] Next, as shown in FIG. 7, attach the imaging unit 200 to the fixing member 600. The fixing member 600 and the imaging unit 200 are fixed by a fixing screw 620. The relative alignment between the fixing member 600 and the imaging unit 200 can be achieved by fitting the convex portions 200a, 200b, which are positioning mechanisms provided on the imaging unit 200, into the opening holes 630a, 630b, which are positioning mechanisms provided on the fixing member 600. Note that the positioning mechanisms are arranged on both sides with the fixing screw 620 in between. Thereby, the position in the height direction (Z direction) of the imaging unit 200 is determined.

[0029] Next, as shown in FIG. 11, accommodate the imaging unit 200 fixed to the fixing member 600 in the housing portion 400. At this time, in order to open the portion of the cover portion 300 corresponding to the imaging lenses 210, 220 of the imaging unit 200, as shown in FIG. 9, remove the second cover 320 of the portion corresponding to the opening 311 from the first cover 310.

[0030] Note that the imaging unit 200 of the present embodiment includes two imaging lenses 210, 220 through which image light passes as shown in FIG. 11, but is not limited thereto, and may be configured with one imaging lens. The second cover 320 is provided to be openable and closable with respect to the first cover 310.

[0031] In order to prevent the removed second cover 320 from being lost, as shown in FIG. 10, the second cover 320 is fixed to the side of the fixing member 600 opposite to the side where the imaging unit 200 is attached. As a fixing method, for example, the protrusions 321a and 321b of the second cover 320 are fitted into the opening holes 640a and 640b provided in the fixing member 600, and further, the elastic portion 322 of the second cover 320 is pushed into the convex fixing portion 650 provided in the fixing member 600 for fixing.

[0032] Next, as shown in FIG. 11, the imaging unit 200 is housed in the housing portion 400. First, as shown in FIG. 12, the cable 700 that is electrically connected to the inside of the projector 1000 and drawn out into the housing portion 400 through the opening hole 420 of the housing portion 400 is further drawn out to the outside of the housing portion 400.

[0033] As shown in FIG. 11, the cable 700 has a wiring portion 710 and a connector 720 attached to the tip of the wiring portion 710. The length of the cable 700 housed in the housing portion 400 is longer than the length of the depth (+Y direction) of the housing portion 400. Therefore, the cable 700 can be drawn out from the inside of the housing portion 400 to the outside of the housing portion 400.

[0034] Next, as shown in FIG. 11, the connector 720 is inserted into the connection portion 230 of the imaging unit 200 to electrically connect the cable 700 and the imaging unit 200. Then, the imaging unit 200 is housed in the housing portion 400. The imaging unit 200 is fixed by attaching the fixing member 600 to the side surface 400a of the housing portion 400 using three screws 610a, 610b, and 610c as shown in FIG. 12.

[0035] Next, the cable 700 drawn out to the outside of the housing portion 400 is housed in the housing portion 400. Specifically, as shown in FIGS. 11 and 12, the excess cable 700 is folded and inserted into the gap between the support portions 410a and 410b arranged on the side surface 400a of the housing portion 400 and the upper surface of the housing portion 400 to support the cable 700.

[0036] As described above, as shown in FIG. 13, the imaging unit 200 is accommodated in the accommodation unit 400. After that, by fitting the first cover 310 shown in FIG. 9 into the exterior housing 100 so as to cover the accommodation unit 400, as shown in FIG. 1, it can be provided as a camera-integrated projector 1000.

[0037] When the user projects image light from the projector 1000, the control unit 500 performs, for example, distortion correction and focus adjustment of the image light based on the image light obtained by the imaging unit 200.

[0038] Although it is desirable that the imaging unit 200, particularly the imaging lenses 210 and 220, do not protrude from the first surface 100a of the exterior housing 100, as shown in FIG. 14, it is sufficient that the amount B by which the imaging unit 200 protrudes from the first surface 100a is smaller than the amount A by which at least the projection optical unit 1300 protrudes from the first surface 100a. By arranging it in this way, it is possible to suppress the increase in size of the projector 1000.

[0039] Further, as shown in FIGS. 15 and 16, the fixing member 600 desirably includes a first wall portion 600a having fixing screws 620 and a positioning mechanism, a second wall portion 600b intersecting the first wall portion 600a, and a third wall portion 600c intersecting the first wall portion 600a and the second wall portion 600b. FIG. 15 shows a state in which the imaging unit 200 is attached to the fixing member 600. FIG. 16 shows a state in which the imaging unit 200 is removed from the state shown in FIG. 15.

[0040] According to such a fixing member 600, since the fixing member 600 is provided with three wall portions 600a, 600b, and 600c, it is possible to make it easier to guide when positioning the imaging unit 200 and the fixing member 600. Further, since it is composed of three wall portions 600a, 600b, and 600c, the strength of the fixing member 600 can be improved.

[0041] Although the example in which the imaging unit 200 is attached to the projector 1000 has been described, the imaging unit 200 may be used while being attached to the projector 1000 in advance. In addition, it is desirable that the user select and use the attachment and detachment of the imaging unit 200 to the projector 1000 according to the application.

[0042] As described above, the projector 1000 of the present embodiment includes an exterior housing 100 provided with a housing portion 400, a light source unit 1100 housed in the exterior housing 100 and emitting light, an image forming unit 1200 housed in the exterior housing 100 and generating image light from the light, a projection optical unit 1300 attached to the exterior housing 100 and projecting the image light, and a detachable imaging unit 200 that images the projected image light. The imaging unit 200 is housed in the housing portion 400.

[0043] According to this configuration, since the imaging unit 200 is housed in the housing portion 400 housed in the exterior housing 100, it is possible to suppress the protrusion from the exterior housing 100 only by the size of the housing portion 400. Therefore, even when the imaging unit 200 is attached, it is possible to suppress the increase in size of the projector 1000.

[0044] In addition, the projector 1000 of the present embodiment includes an exterior housing 100, a housing portion 400 provided in the exterior housing 100 and housing a detachable imaging unit 200 that images the projected image light, a light source unit 1100 housed in the exterior housing 100 and emitting light, an image forming unit 1200 housed in the exterior housing 100 and generating image light from the light, and a projection optical unit 1300 attached to the exterior housing 100 and projecting the image light.

[0045] According to this configuration, since the housing portion 400 that houses the detachable imaging unit 200 is provided in the exterior housing 100, it is possible to suppress the protrusion from the exterior housing 100 only by the size of the housing portion 400. Therefore, even when the imaging unit 200 is attached, it is possible to suppress the increase in size of the projector 1000.

[0046] Further, in the projector 1000, a fixing member 600 that is accommodated in the accommodating portion 400 and fixes the imaging unit 200 is provided. It is preferable that positioning mechanisms (opening holes 630a and 630b, convex portions 200a and 200b) for determining the relative positions of the fixing member 600 and the imaging unit 200 are provided on the fixing member 600 and the imaging unit 200. According to this configuration, since the positional relationship between the fixing member 600 and the imaging unit 200 is determined by the positioning mechanism, even when the fixing member 600 with the imaging unit 200 mounted thereon is accommodated in the accommodating portion 400 or an impact is applied to the projector 1000, it is possible to suppress the displacement of the position of the imaging unit 200.

[0047] Further, in the projector 1000, the exterior housing 100 has a first surface 100a which is the surface where the projection optical unit 1300 is provided, and the amount B by which the imaging unit 200 protrudes from the first surface 100a is smaller than the amount A by which the projection optical unit 1300 protrudes from the first surface 100a. According to this configuration, even when the imaging unit 200 is mounted on the projector 1000, the amount of protrusion on the side of the first surface 100a of the projector 1000 (the projection side in the projector 1000) can be suppressed, and it is possible to suppress the enlargement of the projector 1000.

[0048] Further, in the projector 1000, the exterior housing 100 has a first surface 100a which is the surface where the projection optical unit 1300 is provided, and it is preferable that the imaging unit 200 does not protrude from the first surface 100a. According to this configuration, even when the imaging unit 200 is mounted on the projector 1000, since it does not protrude on the side of the first surface 100a of the projector 1000 (the projection side in the projector 1000), it is possible to suppress the enlargement of the projector 1000. In addition, since the imaging unit 200 does not protrude from the exterior housing 100, the transportability and appearance of the projector 1000 can be improved.

[0049] In addition, in the projector 1000, it is preferable that the exterior housing 100 has a cover portion 300 that can open and close and covers the housing portion 400. According to this configuration, even when the imaging unit 200 is mounted on the housing portion 400, since the cover portion 300 that covers the housing portion 400 is provided, the imaging unit 200 can be protected from impacts and dust. Furthermore, since the housing portion 400 is covered by the cover portion 300, the appearance of the projector 1000 can be improved.

[0050] In addition, in the projector 1000, it is preferable that the imaging unit 200 includes imaging lenses 210 and 220 through which image light passes, and the cover portion 300 has an opening 311 that can open and close at a position corresponding to the imaging lenses 210 and 220. According to this configuration, since the opening 311 is provided at a position corresponding to the imaging lenses 210 and 220, even when the cover portion 300 is mounted on the exterior housing 100, the imaging unit 200 can be protected and image light can be imaged. In addition, the projector 1000 can be provided to have the same functions as a camera-integrated projector. In addition, since only the portion corresponding to the imaging lenses 210 and 220 is open, the appearance can be improved.

[0051] In addition, in the projector 1000, it is preferable that the fixing member 600 includes a first wall portion 600a provided with a positioning mechanism, a second wall portion 600b provided in a direction intersecting the first wall portion 600a, and a third wall portion 600c provided in a direction intersecting the first wall portion 600a and the second wall portion 600b. According to this configuration, since the three wall portions 600a, 600b, and 600c are provided on the fixing member 600, it is possible to make it easier to guide when positioning the imaging unit 200 and the fixing member 600. In addition, since it is composed of the three wall portions 600a, 600b, and 600c, the strength of the fixing member 600 can be improved.

[0052] Further, in the projector 1000, the housing portion 400 is provided with a cable 700 having a connector 720 electrically connected to the imaging unit 200, and support portions 410a and 410b for supporting the cable 700. The length of the cable 700 extending into the housing portion 400 is preferably longer than the depth length of the housing portion 400. According to this configuration, since the length of the cable 700 is longer than the depth length of the housing portion 400, when attaching and detaching the imaging unit 200 to and from the fixing member 600, work can be performed outside the outer housing 100. Further, by folding the cable 700 and fixing it to the support portions 410a and 410b, the long cable 700 can be compactly housed.

[0053] Hereinafter, a modification of the above-described embodiment will be described.

[0054] As described above, the housing portion 400 is not limited to housing only the imaging unit 200. For example, a configuration as shown in FIG. 17 may be used. As shown in FIG. 17, the housing portion 400A of the modification has an extended area for housing further downward from the area where the imaging unit 200 is disposed. Another device to be connected, which is different from the imaging unit 200, can be housed in this extended area.

[0055] Note that it is desirable that holding mechanisms 430a and 430b for holding the device to be connected are provided in the housing portion 400A. The holding mechanisms 430a and 430b are, for example, elastic members such as springs. Also, the device to be connected can, for example, communicate wirelessly with the projector 1000. Further, devices such as a wireless LAN and a motion sensor may be housed in the extended area.

[0056] Thus, in the projector 1000 of the modified example, the housing portion 400A is provided with holding mechanisms 430a and 430b for holding devices to be connected that are electrically connected to the projector 1000, and it is preferable that the housing portion 400A houses the imaging unit 200 and the devices to be connected. According to this configuration, since two or more devices such as the imaging unit 200 and the devices to be connected can be housed in the housing portion 400A, even when a plurality of devices are connected to the projector 1000, an increase in size can be suppressed.

[0057] Also, the method of fixing the imaging unit 200 to the exterior housing 100 was to fix it to the side surface 400a of the housing portion 400 with screws 610a, 610b, and 610c via the fixing member 600, but it is not limited to this, and a sliding type or biasing by a biasing member may be used.

[0058] Also, the position of the connection portion 230 of the imaging unit 200 may be arranged on the opposite side to the position in the above-described embodiment. Also, corresponding to the position of the connection portion 230, the position of the third wall portion 600c constituting the fixing member 600 may also be arranged on the opposite side. Also, the position of the connection portion 230 may be arranged on the upper and lower surfaces of the imaging unit 200.

[0059] Also, the imaging unit 200 is not limited to being arranged on the front side (the first surface 100a side) of the exterior housing 100, and it suffices as long as it can image the projected image light. For example, when it is arranged at a position other than the front side, it may be configured to image by folding back, or when applied to a single-focus type projector, it may be arranged on the upper or lower surface of the exterior housing.

[0060] Also, the positioning mechanism for determining the positions of the fixing member 600 and the imaging unit 200 is not limited to the configuration of the above-described embodiment. For example, an opening hole may be formed on the imaging unit 200 side, and a convex portion may be formed on the fixing member 600.

[0061] In addition, the fixing screw 620 for attaching the imaging unit 200 to the fixing member 600 is not limited to one type of screw. For example, a screw conforming to a camera standard may be formed, or a general-purpose screw may be formed. The same applies to the screw for attaching the fixing member 600 to the housing portion 400.

[0062] In addition, in order to improve the impact resistance of the imaging unit 200, an elastic member may be disposed between the fixing member 600 and the exterior housing 100.

[0063] In addition, the cover portion 300 is not limited to using a general non-translucent resin. For example, a transparent member such as glass may be used.

Explanation of Reference Numerals

[0064] 100…Exterior housing, 100a…First surface, 200…Imaging unit, 200a, 200b…Protrusions, 210, 220…Imaging lenses, 230…Connection portion, 300…Cover portion, 310…First cover, 311…Opening, 320…Second cover, 321a, 321b…Protrusions, 322…Elastic portion, 400, 400A…Housing portion, 400a…Side surface, 410a, 410b…Support portions, 420…Opening hole, 430a, 430b…Holding mechanism, 500…Control unit, 600…Fixing member, 600a…First wall portion, 600b…Second wall portion, 600c…Third wall portion, 610a, 610b, 610c…Screws, 620…Fixing screw, 630a, 630b…Opening holes, 640a, 640b…Opening holes, 650…Fixing portion, 700…Cable, 710…Wiring portion, 720…Connector, 1000…Projector, 1100…Light source unit, 1101…Lamp unit, 1102…Integrator lens, 1103…Polarization conversion element, 1104, 1105…Dichroic mirrors, 1106, 1107, 1108…Reflection mirrors, 1200…Image forming unit, 1201, 1202, 1203, 1204, 1205…Relay lenses, 1206…Cross dichroic prism, 1207…Projection lens, 1210, 1220, 1230…Liquid crystal light valves, 1300…Projection optical unit, 1400…Screen.

Claims

1. An exterior housing provided with a housing portion, A light source unit housed in the exterior housing and emitting light, An image forming unit housed in the exterior housing and generating image light from the light, A projection optical unit attached to the exterior housing and projecting the image light, A detachable imaging unit that images the projected image light, Comprising, The imaging unit is characterized in that it is housed in the housing portion, a projector.

2. An exterior housing, A housing portion provided in the exterior housing and housing a detachable imaging unit that images the projected image light, A light source unit housed in the exterior housing and emitting light, An image forming unit housed in the exterior housing and generating image light from the light, A projection optical unit attached to the exterior housing and projecting the image light, Characterized by comprising a projector.

3. The projector according to claim 2, Comprising a fixing member housed in the housing portion and fixing the imaging unit, The fixing member and the imaging unit are provided with a positioning mechanism for determining their relative positions, a projector.

4. The projector according to claim 2 or claim 3, The exterior housing has a first surface which is the surface where the projection optical unit is provided, The amount by which the imaging unit protrudes from the first surface is smaller than the amount by which the projection optical unit protrudes from the first surface, a projector.

5. The projector according to claim 2 or claim 3, The exterior housing has a first surface which is the surface where the projection optical unit is provided, The imaging unit is characterized in that it does not protrude from the first surface, a projector.

6. The projector according to any one of claims 2 to 5, The exterior housing is characterized by having an openable and closable cover portion covering the housing portion, a projector.

7. The projector according to claim 6, The imaging unit includes an imaging lens through which the image light passes, The cover portion is characterized by having an openable and closable opening at a position corresponding to the imaging lens, a projector.

8. The projector according to any one of claims 3 to 7, The fixing member is, A first wall portion provided with the positioning mechanism, a second wall portion provided in a direction intersecting the first wall portion; a third wall portion provided in a direction intersecting the first wall portion and the second wall portion; A projector, characterized by comprising the same.

9. The projector according to any one of Claims 2 to 8, wherein the housing portion is provided with a cable having a connector electrically connected to the imaging unit, and a support portion for supporting the cable; A projector, characterized in that the length of the cable extending into the housing portion is longer than the length of the depth of the housing portion.

10. The projector according to any one of Claims 2 to 9, wherein the housing portion is provided with a holding mechanism for holding a device to be connected electrically connected to the projector; A projector, characterized in that the housing portion houses the imaging unit and the device to be connected.

Citation Information

Patent Citations

  • Method and device for retaining linear member, and electronic device

    JP2003339112A

  • Projector

    JP2005195879A

  • Projection device, projection method and program

    JP2005257766A

  • Electronic equipment

    JP2010220069A

  • Projection type video display device

    JP2013122491A