JP2012029141A - Mobile device with image projecting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide type mobile device with an image projecting function capable of certainly preventing emission of laser light in a shortened state.SOLUTION: A mobile device 10 includes: a first housing 1 and a second housing 2 which are relatively and slidably provided; and a projector module 4 that projects an image on the basis of image data by light projected from a projection port. By relatively sliding the first and second housings 1 and 2, a first state (A) and a second state (B) are switched: the first state (A) is a state that the first housing 1 and the second housing 2 are wholly overlapped, and the second state (B) is that the first housing 1 and the second housing 2 are partially overlapped. In the state (A), since the first housing 1 and the second housing 2 are overlapped, a projection port 4a is blocked. In the state (B), the projection port 4a is exposed to the outside at a position outside an overlapped portion of the first housing 1 and the second housing 2.

Description

  The present invention relates to a mobile device (for example, a mobile phone with a projector, a mobile terminal with a projector, a digital camera with a projector, a mobile projector, etc.) having an image projection function.

  Small projectors have attracted attention in recent years. Laser scanning projectors, in particular, have features such as small size, low power consumption, and focus-free, and therefore are expected to be mounted on mobile devices, particularly mobile phones that require miniaturization. However, there are indications regarding the safety of lasers, and mounting of laser scanning projectors on mobile devices has not yet been realized.

  As a mobile device having an image projection function of a projector, a foldable or slide type portable terminal is proposed in Patent Document 1. For example, the slide-type portable terminal described in FIG. 27 of Patent Document 1 has a configuration in which the projection direction is switched between a contracted state (closed state) and an extended state (open state). It is possible to project in a direction suitable for using the terminal while holding it in the hand and when using the terminal on the desk.

JP 2009-239955 A

  Slide-type mobile devices are usually stored in clothes pockets and bags in a contracted state. Moreover, it is normal to make it contracted also when carrying around. For this reason, in a configuration in which an image can be projected even in a contracted state and the projection port of the projector is exposed to the outside as in the portable terminal described in Patent Document 1, there is a possibility that the image is projected unexpectedly. That is, when the mobile device is taken out or when the slide operation is performed, the projection operation button is pushed, and there is a possibility that light emitted from the projection port may enter the pupil of yourself or another person. If an attempt is made to control the power supply so that the image cannot be projected in the contracted state, the structure becomes complicated, and safety may not be ensured if a failure occurs. In particular, when a laser scanning projector is mounted, it is necessary to reliably prevent the laser light from being emitted in a contracted state.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a slide type mobile device having an image projection function capable of reliably preventing the emission of laser light in a contracted state. There is to do.

  In order to achieve the above object, a mobile device according to a first aspect of the present invention includes a first housing and a second housing that are relatively slidable, and light projected from an image projection port based on image data. And a projector module for projecting, and a slide-type mobile device having an image projecting function, wherein the first housing and the second housing are moved by relative sliding between the first housing and the second housing. Switching between a first state in which two housings entirely overlap and a second state in which the first housing and the second housing partially overlap, In the state, the projection opening is closed due to the overlap between the first case and the second case, and in the second state, the portion outside the overlap between the first case and the second case The projection port is exposed to the outside.

  The mobile device according to a second aspect of the present invention is electrically controlled in the first aspect so that the projector module is not operable in the first state and is operable in the second state. It is characterized by that.

  A mobile device according to a third aspect of the present invention is the mobile device according to the first or second aspect, wherein the second casing incorporates the projector module, and the surface is opposed to the first casing in the first state. It has a projection port.

  A mobile device according to a fourth aspect of the present invention is the mobile device according to the third aspect, wherein the second casing has a display unit that displays an image based on the image data on a surface on the back side of the surface where the projection port is provided. It is characterized by that.

  The mobile device according to a fifth aspect is characterized in that, in the fourth aspect, the projector module projects an image in a substantially vertical direction with respect to an image display surface of the display unit.

  A mobile device according to a sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, the projector module includes a laser light source that generates light for image projection.

  A mobile device according to a seventh invention is the laser scanning projector according to the sixth invention, wherein the projector module includes a deflecting device that deflects laser light from the laser light source in two directions orthogonal to each other. An image is projected onto a screen surface by laser light that is two-dimensionally deflected and scanned by a deflecting device.

  The mobile device according to an eighth aspect of the present invention is the mobile device according to any one of the first to seventh aspects, wherein the relative slide between the first housing and the second housing is performed linearly or rotationally. It is performed.

  A mobile device according to a ninth invention is the mobile device according to any one of the first to eighth inventions, wherein the first housing performs a projection operation on a surface facing the second housing in the first state. An operation unit for performing the operation, wherein the operation unit is covered with an overlap between the first housing and the second housing in the first state, and the first housing and the second housing in the second state. The operation unit is exposed to the outside at a portion outside the overlap with the second housing.

  The mobile device according to a tenth aspect of the present invention is the mobile device according to any one of the first to eighth aspects, wherein the switching of the state by relative sliding between the first housing and the second housing is the second device. A third state in which the first housing and the second housing partially overlap with each other in a form different from the state, wherein the first housing is the first state in the first state. A data input key for performing data input and a projection operation button for performing a projection operation on a surface facing the two housings; in the first state, the first housing and the second housing; Both the data input key and the projection operation button are covered by the overlap, and only the projection operation button is outside in a portion that is out of the overlap between the first housing and the second housing in the second state. Exposed to the front in the third state Both of the data input keys and the projection operation buttons overlap because out portion of said first housing second housing and wherein the exposed to the outside.

  According to an eleventh aspect of the present invention, there is provided the mobile device according to any one of the first to eighth aspects, wherein the state switching by relative sliding between the first casing and the second casing is performed according to the second configuration. A third state in which the first housing and the second housing partially overlap with each other in a form different from the state, wherein the first housing is the first state in the first state. A data input key for performing data input and a projection operation button for performing a projection operation on a surface facing the two housings; in the first state, the first housing and the second housing; Both the data input key and the projection operation button are covered by the overlap, and only the data input key is outside in the portion that is out of the overlap between the first case and the second case in the second state. Exposed to the front in the third state Both the projection operation button and the data input keys overlap because out portion of said first housing second housing and wherein the exposed to the outside.

  The mobile device according to a twelfth aspect of the present invention is the mobile device according to any one of the first to eighth aspects, wherein the switching of the state by relative sliding between the first housing and the second housing is the second device. A third state in which the first housing and the second housing partially overlap with each other in a form different from the state, wherein the first housing is the first state in the first state. A data input key for performing data input and a projection operation button for performing a projection operation on a surface facing the two housings; in the first state, the first housing and the second housing; Both the data input key and the projection operation button are covered by the overlap, and only the projection operation button is outside in a portion that is out of the overlap between the first housing and the second housing in the second state. Exposed to the front in the third state Only the data input key out portions from overlapping between the first housing second housing and wherein the exposed to the outside.

  According to the first invention, since the projection opening is closed by the overlap of the first housing and the second housing in the first state, the mobile device is in the first state contracted. There is no possibility of projecting toward a person even when image projection light emission occurs unexpectedly due to an excessive operation or failure. That is, as long as the mobile device is in the first state, the projection port is closed, so there is no risk that light emitted from the projection port will enter the pupils of yourself or others. Therefore, it is possible to reliably prevent the laser light from being emitted in a state in which the mobile device is contracted with a simple configuration. In addition, since the projection opening is blocked by the overlap between the first casing and the second casing in the first state, there is also an effect that the projection opening can be protected from dust and dirt.

  According to the second invention, since the projector module is configured to be electrically controlled so that it cannot be operated in the first state, it is excessive when the mobile device is in the contracted first state. Even if the projection operation is performed, no light is emitted from the projection port. Therefore, the laser beam is not emitted from the projection port when the mobile device is contracted, and the projection port is blocked even when electrical control is malfunctioning due to a failure. Can be reliably prevented.

  According to the third invention, since the second housing has a built-in projector module and has a projection opening on the surface facing the first housing in the first state, The projection opening is blocked by overlapping with one housing. In the first state, since the first housing and the second housing are entirely overlapped, it is possible to reliably prevent the laser light from being emitted to the outside of the apparatus with a simple configuration.

  According to the fourth aspect of the invention, since the second housing has a display unit (for example, a liquid crystal display unit) on the back side of the surface on which the projection port is provided, the projection port is exposed to the outside. Even in the second state, when the user of the mobile device is looking at the display unit, the projection opening does not face the user side. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  According to the fifth aspect, since the projector module is configured to project an image in a direction substantially perpendicular to the image display surface of the display unit, the user of the mobile device is viewing the display unit. An image can be projected in substantially the same direction as the viewing direction. Therefore, even if the user mistakenly operates the user while looking at the display unit, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  According to the sixth invention, since the projector module is configured to have a laser light source, it is possible to reduce the weight, reduce the thickness, reduce the size, save power, and add an image projection function to the slide type mobile device. It becomes possible to make an optimal configuration. In addition, when the projector module constitutes a laser scanning projector as in the seventh aspect of the invention, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  According to the eighth invention, when the relative sliding between the first housing and the second housing is performed by linear movement, the first and second states can be switched with a simple mechanical structure. When the relative sliding between the first casing and the second casing is performed by rotational movement, the partial overlap between the first casing and the second casing is operated. It can be made suitable for sex.

  According to the ninth aspect, the operating portion is covered by the overlap between the first casing and the second casing in the first state, and from the overlap between the first casing and the second casing in the second state. Since the operation unit is exposed to the outside at the detached portion, there is no possibility that the projection operation is excessively performed when the mobile device is in the first contracted state. That is, since the operation unit is covered as long as the mobile device is in the first state, the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light from being emitted in a state in which the mobile device is contracted with a simple configuration.

  According to the tenth aspect, the mobile device is shrunk because both the data input key and the projection operation button are covered by the overlap between the first casing and the second casing in the first state. There is no risk that the projection operation button will be pushed too much when in the first state. That is, since the projection operation button is covered as long as the mobile device is in the first state, the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light from being emitted in a state in which the mobile device is contracted with a simple configuration. In the second state, the user knows that only the projection operation is possible because only the projection operation button is exposed to the outside at the portion where the first housing and the second housing are not overlapped. Can do.

  According to the eleventh aspect of the present invention, since the data input key and the projection operation button are both covered by the overlap between the first casing and the second casing in the first state, the mobile device is shrunk. There is no risk that the projection operation button will be pushed too much when in the first state. That is, since the projection operation button is covered as long as the mobile device is in the first state, the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light from being emitted in a state in which the mobile device is contracted with a simple configuration. In the second state, the user knows that only the data input is possible because only the data input key is exposed to the outside at the portion where the first housing and the second housing are not overlapped. Can do. Further, since the projection operation button is exposed to the outside only in the third state, the user can know that the image cannot be projected in the first and second states.

  According to the twelfth aspect, since the data input key and the projection operation button are both covered by the overlap between the first casing and the second casing in the first state, the mobile device is shrunk. There is no risk that the projection operation button will be pushed too much when in the first state. That is, since the projection operation button is covered as long as the mobile device is in the first state, the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light from being emitted in a state in which the mobile device is contracted with a simple configuration. In the second state, the user knows that only the projection operation is possible because only the projection operation button is exposed to the outside at the portion where the first housing and the second housing are not overlapped. In the third state, since only the data input key is exposed to the outside at the portion where the first casing and the second casing are not overlapped, the user can only input data. Can know.

The perspective view which shows 1st Embodiment of a slide type mobile device. FIG. 3 is a schematic diagram illustrating a schematic configuration example of a projector module according to the first embodiment. The perspective view which shows the image projection state by 1st Embodiment. 1 is a perspective view illustrating a schematic configuration example of a MEMS scanner according to a first embodiment. Sectional drawing which shows 2nd Embodiment of a slide type mobile apparatus. Sectional drawing which shows 3rd Embodiment of a slide type mobile device. Sectional drawing which shows 4th Embodiment of a slide type mobile device. The top view which shows 5th Embodiment of a slide type mobile device.

  Hereinafter, embodiments of a slide type mobile device according to the present invention will be described with reference to the drawings. Note that the same or corresponding parts in the embodiment and the like are denoted by the same reference numerals, and redundant description is omitted as appropriate.

<< First Embodiment (FIGS. 1 to 4) >>
FIG. 1 shows an appearance of a slide type mobile device 10 according to the first embodiment. 1A is a perspective view showing the mobile device 10 in a contracted state (first state), and FIG. 1B is a perspective view showing the mobile device 10 in an extended state (second state). is there. As shown in FIG. 1, the mobile device 10 includes a first housing 1 and a second housing 2 that are relatively slidable, and a laser beam L that projects an image based on the image data from the projection port 4 a. And a projector module 4 for projecting. The mobile device 10 is assumed to be a projector-equipped mobile phone or a projector-equipped mobile terminal, but is not limited thereto as long as it is a mobile device having an image projection function. For example, mobile devices such as a digital camera with a projector and a portable projector can also have the same configuration as the mobile device 10 according to the present embodiment.

  The mobile device 10 has a slide opening / closing structure. For example, when the second housing 2 is linearly moved in the first state (A) by the slide mechanism (in the direction of the arrow mU), the mobile device 10 is moved. Becomes the second state (B). That is, the first state (A) in which the first housing 1 and the second housing 2 are entirely overlapped by the relative sliding of the first housing 1 and the second housing 2, and the first Switching between the second state (B) in which the housing and the second housing partially overlap each other is performed.

  The projector module 4 is built in the second housing 2, and a projection port 4 a is provided on the surface S <b> 2 facing the first housing 1 in the first state (A). Therefore, in the first state (A), the projection opening 4a is blocked by the overlap of the first housing 1 and the second housing 2, and in the second state (B), the first housing 1 and the second housing are closed. The projection port 4a is exposed to the outside at a portion deviated from the overlap with the body 2. A liquid crystal display unit 3 for displaying an image based on image data is provided on a surface S3 on the back side of the surface S2 provided with the projection port 4a. Since the same image as the projected image can be displayed on the liquid crystal display unit 3, the image can be projected after or while confirming the liquid crystal screen.

  In the first housing 1, an operation unit 9 for performing a projection operation and data input is provided on the surface S <b> 1 facing the second housing 2 in the first state (A). Therefore, the operation unit 9 is covered by the overlap of the first casing 1 and the second casing 2 in the first state (A), and the first casing 1 and the second casing in the second state (B). The operation unit 9 is exposed to the outside at a portion outside the overlap with 2.

  FIG. 2 schematically shows a schematic configuration example of the projector module 4, and FIG. The projector module 4 is a laser scanning projector that projects an image onto a screen surface (scanned surface) SC by two-dimensional deflection scanning of laser light L by a MEMS (Micro Electro Mechanical Systems) scanner 8. A projector that uses a laser light source can draw a larger color reproduction range than a conventional projector that uses a discharge lamp as a light source. Among them, a laser scanning projector has been attracting attention as a very small projector in recent years. The laser scanning method has many merits compared with a method of projecting an image modulated by illuminating a two-dimensional spatial modulation element (for example, a liquid crystal panel or a digital micromirror device) with a projection lens. For example, since no projection lens is required, the apparatus can be reduced in size and thickness. Further, since the image is formed by modulation of the laser light source, there is an advantage in terms of low power consumption, for example, there is no laser emission when the screen is black.

  In the projector module 4, as shown in FIG. 2, laser light L of three wavelengths R (red), G (green), and B (blue) emitted from the laser light sources 5R, 5G, and 5B is collimated to the collimator lenses 6R, Collimated by 6G and 6B, respectively, and further color synthesized by dichroic prisms 7a and 7b (AX: optical axis). The laser light L after the color synthesis enters the MEMS scanner (deflection device) 8. The MEMS scanner 8 has a built-in mirror (deflecting / reflecting mirror) 8a capable of changing the tilt angle in two dimensions.

  In order to raster scan the laser beam L on the screen surface SC, the MEMS scanner 8 deflects the laser beam L by reflection from the mirror 8a in the first and second scanning directions orthogonal to each other. At this time, in synchronization with the movement of the mirror 8a, each laser light source 5R, 5G, 5B is modulated in accordance with the output image by a laser driver (not shown). The laser beam L deflected by the MEMS scanner 8 is emitted from the projection port 4a, and then two-dimensionally scans the screen surface SC with a beam spot to form a two-dimensional image. In addition, since the projection port 4a should just be comprised so that the laser beam L can pass, it may be comprised by the hole and may be comprised by the transparent plate.

  FIG. 4 shows a schematic configuration example of the MEMS scanner 8. The MEMS scanner 8 is composed of a substrate obtained by etching silicon, and four PZTs (lead zirconate titanate) 8e are attached to the substrate as piezoelectric elements, thereby extending four sheets extending from the fixed frame 8d. It constitutes a unimorph. A mirror holding frame 8c is connected to the four unimorphs at the X-axis portion, and a mirror 8a is provided in the mirror holding frame 8c via a torsion bar 8b. By displacing the four PZTs 8e, the mirror holding frame 8c is rotated around the X axis, and the vertical scanning (vertical direction) of the raster scanning described above is realized (60 Hz). At the same time, by vibrating at the resonance frequency (30 KHz) of the vibration part by the mirror 8a and the torsion bar 8b, resonance vibration occurs around the Y axis, and the above-described horizontal scanning (horizontal direction) of the raster scan is realized. .

  By the way, since a laser scanning projector uses a laser as a light source, there is a concern regarding safety during use (for example, a concern that laser light enters the eye). In addition, there are various regulations such as laser safety standards for apparatuses using lasers depending on the country in which they are used. In order to use it for a small display, it is necessary to determine the output and configuration of the projection apparatus so as to satisfy these safety standards. Generally, it is compensated that the output is below a certain value so that the laser output is below the value called the safety standard, or no light above the safety standard value is emitted in the unlikely event that the scanning means fails. Consideration is given to safety, such as providing a mechanism (fail-safe). However, the danger of accidentally projecting on yourself and others is not perfect with conventional safety measures.

  When the mobile device 10 shown in FIG. 1 is in the second state (B) extended by the slide mechanism, since the projection port 4a is exposed to the outside of the mobile device 10, the image projection is possible. In the first state (A) contracted by the above, the projection port 4a is blocked by the second housing 2, and thus image projection is impossible. When carrying the slide-type mobile device 10 or storing it in a pocket or bag of clothes, it is common to use the first state (A) in a contracted state. As shown in FIG. 1A, if the projection port 4a is closed by the first housing 1, the laser light L is emitted from the first housing 1 even if the laser light sources 5R, 5G, and 5B emit light. Therefore, it is not projected toward the outside of the mobile device 10 and an accident of projecting an image toward a person does not occur. In the second state (B), since the user looks at the liquid crystal display unit 3, there is no possibility of projecting toward the user even when the operation unit 9 is operated unconsciously. Therefore, great safety can be ensured.

  As described above, the mobile device 10 according to the present embodiment is configured such that the projection port 4a is blocked by the overlap between the first housing 1 and the second housing 2 in the first state (A). For this reason, even when the light emission of the image projection occurs unexpectedly due to an excessive operation or failure when the mobile device 10 is in the contracted first state (A), there is no risk of projecting toward the person. . That is, as long as the mobile device 10 is in the first state (A), the projection port 4a is closed, so there is no risk that light emitted from the projection port 4a enters the pupils of yourself and others. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 10 is contracted with a simple configuration. In addition, since the projection opening 4a is blocked by the overlap of the first casing 1 and the second casing 2 in the first state (A), there is an effect that the projection opening 4a can be protected from dust and dirt.

  In the mobile device 10 of the present embodiment, as shown in FIG. 1, the second housing 2 incorporates the projector module 4 and projects onto the surface S <b> 2 facing the first housing 1 in the first state (A). Since the configuration has the opening 4a, the projection opening 4a is blocked by the overlap with the first housing 1 in the first state (A). In the first state (A), since the first housing 1 and the second housing 2 are entirely overlapped, the laser light L is reliably emitted outside the mobile device 10 with a simple configuration. Can be prevented.

  As shown in FIG. 1, in the mobile device 10 of the present embodiment, the second housing 2 has a liquid crystal display unit 3 on a surface S3 on the back side of the surface S2 on which the projection port 4a is provided. Therefore, even in the second state (B) in which the projection port 4a is exposed to the outside, the projection port 4a is arranged facing the user side when the user of the mobile device 10 is looking at the liquid crystal display unit 3. There is nothing. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  The liquid crystal display unit 3 has a flat plate shape, and the projector module 4 also has a flat plate shape because it is made of a laser scanning projector that can be thinned. Therefore, as shown in FIG. 1, in the second housing 2, it is preferable to arrange the projector module 4 positioned on the surface S2 side and the liquid crystal display unit 3 positioned on the surface S3 side so as to overlap each other. With this arrangement, the mobile device 10 can be effectively thinned. Further, when the mobile device 10 is set to the second state (B) or is shifted to the image projection mode in the second state (B), a display indicating that the image can be projected is performed on the liquid crystal display unit 3. It may be. By displaying that image projection is possible, unintended image projection can be avoided.

  As shown in FIG. 1, the image display surface of the liquid crystal display unit 3 is parallel to the surface S2 on which the projection port 4a is provided. That is, the mobile device 10 according to the present embodiment is configured such that the projector module 4 projects an image in a direction substantially perpendicular to the image display surface of the liquid crystal display unit 3. An image can be projected in substantially the same direction as the line of sight when the liquid crystal display unit 3 is viewed. Therefore, even if the user mistakenly operates the liquid crystal display unit 3 while looking at it, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  In the mobile device 10 of the present embodiment, the projector module 4 is configured to have the laser light sources 5R, 5G, and 5B (FIG. 2), so that it is possible to reduce the weight, reduce the thickness, reduce the size, and save power. Thus, it is possible to obtain an optimum configuration for adding an image projection function to the slide type mobile device. Then, as the projector module 4 constitutes a laser scanning projector as in the present embodiment, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  Even when a projector module other than the laser scanning projector is used as the projector module 4, the above-described effect by the slide opening / closing structure that closes or exposes the projection port 4a can be obtained. For example, a pixel-type projector that uses a semiconductor laser or LED (light emitting diode) as a light source for illumination and uses a liquid crystal display (LCD) or a digital light processing (DLP) (registered trademark of Texas Instruments, USA) as a modulation element Even if it is mounted on an ultra-compact mobile device, it may damage the eyes if it is projected to a person due to operating conditions. This embodiment that can prevent projection can be said to be effective as well.

  As shown in FIG. 1, the mobile device 10 according to the present embodiment is configured to perform relative sliding between the first housing 1 and the second housing 2 by linear movement. Switching between the first state (A) and the second state (B) can be performed with a mechanical structure.

  As shown in FIG. 1, the mobile device 10 according to the present embodiment has the operation unit 9 covered by the overlap of the first housing 1 and the second housing 2 in the first state (A), In the state (B), since the operation unit 9 is exposed to the outside at a portion where the first housing 1 and the second housing 2 are not overlapped, the mobile device 10 is contracted in the first state ( There is no risk that the projection operation will be excessively performed when in A). That is, since the operation unit 9 is covered as long as the mobile device 10 is in the first state (A), the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light L from being emitted in the state (A) in which the mobile device 10 is contracted while having a simple configuration.

  In the mobile device 10 of the present embodiment, the projector module 4 is electrically controlled so that it cannot operate in the first state (A) and can operate in the second state (B). (Furthermore, it is preferable that image projection is not possible during the call mode or the mail mode). For example, the power supply to the projector module 4 is controlled in conjunction with the slide opening / closing structure (by sensor detection) (for example, the power is turned off in the first state (A), the power is turned on or projected in the second state (B)). Preferably, the operation is switched on.

  If the projector module 4 is electrically controlled so as not to operate in the first state (A), the projection operation is performed when the mobile device 10 is in the contracted first state (A). Even if it is, the laser beam L will not be emitted from the projection port 4a. Therefore, the laser beam L is not emitted from the projection port 4a in the first state (A) in which the mobile device 10 is contracted, and the projection port 4a is blocked even when the electrical control is malfunctioning due to a failure. Therefore, it is possible to reliably prevent the laser light L from being emitted outside the mobile device 10.

<< Second Embodiment (FIG. 5) >>
FIG. 5 shows a cross-sectional structure of a slide type mobile device 20 according to the second embodiment. 5A is a cross-sectional view showing the mobile device 20 in a contracted state (first state), and FIG. 5B is a cross-sectional view showing the mobile device 20 in a stretched state (second state). FIG. 5C is a cross-sectional view showing the mobile device 20 in a stretched state (third state). As shown in FIG. 5, the mobile device 20 includes a first housing 1 and a second housing 2 provided so as to be relatively slidable, and a laser beam L that projects an image based on the image data from the projection port 4a. And a projector module 4 for projecting. The mobile device 20 is assumed to be a mobile phone with a projector or a mobile terminal with a projector, but is not limited to this as long as it is a mobile device having an image projection function, as in the first embodiment.

  The mobile device 20 has a slide opening / closing structure. For example, when the second housing 2 is linearly moved in the first state (A) by the slide mechanism (in the direction of the arrow mU), the mobile device 20 is moved. Enters the second state (B), and when the second housing 2 is further moved linearly (in the direction of the arrow mU), the mobile device 20 enters the third state (C). That is, the first state (A) in which the first housing 1 and the second housing 2 are entirely overlapped by the relative sliding of the first housing 1 and the second housing 2, and the first The first case 1 and the second case 2 are partially different from each other in the second state (B) in which the case and the second case partially overlap each other and the second state (B). Switching to the third state (C) overlapped with is performed. Since there are two slide positions, it is possible to set the image projection mode in the second state (B) and the call / mail mode in the third state (C).

  The projector module 4 is built in the second housing 2, and a projection port 4 a is provided on the surface S <b> 2 facing the first housing 1 in the first state (A). Accordingly, in the first state (A), the projection port 4a is blocked by the overlap of the first housing 1 and the second housing 2, and in the second state (B) and the third state (C), The projection port 4a is exposed to the outside at a portion that is out of the overlap of the first housing 1 and the second housing 2. A liquid crystal display unit 3 for displaying an image based on image data is provided on a surface S3 on the back side of the surface S2 provided with the projection port 4a. Since the same image as the projected image can be displayed on the liquid crystal display unit 3, the image can be projected after or while confirming the liquid crystal screen.

  The first casing 1 has a data input key 9D for inputting data and a projection operation button 9P for performing a projection operation on the surface S1 facing the second casing 2 in the first state (A). Is provided. Accordingly, both the data input key 9D and the projection operation button 9P are covered by the overlap of the first housing 1 and the second housing 2 in the first state (A), and the first state in the second state (B). Only the projection operation button 9P is exposed to the outside at a portion outside the overlap between the case 1 and the second case 2, and the first case 1 and the second case 2 are overlapped in the third state (C). Both the projection operation button 9P and the data input key 9D are exposed to the outside at a portion deviated from the above.

  As described above, the mobile device 20 of the present embodiment is configured such that the projection port 4a is blocked by the overlap between the first housing 1 and the second housing 2 in the first state (A). For this reason, even when the light emission of the image projection occurs unexpectedly due to an excessive operation or failure when the mobile device 20 is in the contracted first state (A), there is no risk of projecting toward the person. . That is, as long as the mobile device 20 is in the first state (A), the projection port 4a is closed, so there is no risk that light emitted from the projection port 4a enters the eyes of yourself or others. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 20 is contracted while having a simple configuration. In addition, since the projection opening 4a is blocked by the overlap of the first casing 1 and the second casing 2 in the first state (A), there is an effect that the projection opening 4a can be protected from dust and dirt.

  In the mobile device 20 of the present embodiment, as shown in FIG. 5, the second housing 2 incorporates the projector module 4 and projects onto the surface S <b> 2 facing the first housing 1 in the first state (A). Since the configuration has the opening 4a, the projection opening 4a is blocked by the overlap with the first housing 1 in the first state (A). In the first state (A), since the first housing 1 and the second housing 2 are entirely overlapped, the laser light L is reliably emitted outside the mobile device 20 with a simple configuration. Can be prevented.

  As shown in FIG. 5, in the mobile device 20 of the present embodiment, the second housing 2 has a liquid crystal display unit 3 on a surface S3 on the back side of the surface S2 on which the projection port 4a is provided. Therefore, even in the second state (B) and the third state (C) where the projection port 4a is exposed to the outside, the projection port 4a is used when the user of the mobile device 20 is looking at the liquid crystal display unit 3. It will not be oriented toward the elderly. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  The liquid crystal display unit 3 has a flat plate shape, and the projector module 4 also has a flat plate shape because it is made of a laser scanning projector that can be thinned. Therefore, as shown in FIG. 5, in the second housing 2, it is preferable to arrange the projector module 4 located on the surface S2 side and the liquid crystal display unit 3 located on the surface S3 side so as to overlap each other. With this arrangement, the mobile device 20 can be effectively thinned. Further, when the mobile device 20 is set to the second state (B) or is shifted to the image projection mode in the second state (B), a display indicating that the image can be projected is performed on the liquid crystal display unit 3. It may be. By displaying that image projection is possible, unintended image projection can be avoided.

  As shown in FIG. 5, the image display surface of the liquid crystal display unit 3 is parallel to the surface S2 on which the projection port 4a is provided. That is, the mobile device 20 according to the present embodiment is configured so that the projector module 4 projects an image in a direction substantially perpendicular to the image display surface of the liquid crystal display unit 3. An image can be projected in substantially the same direction as the line of sight when the liquid crystal display unit 3 is viewed. Therefore, even if the user mistakenly operates the liquid crystal display unit 3 while looking at it, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  In the mobile device 20 of the present embodiment, the projector module 4 is configured to have the laser light sources 5R, 5G, and 5B (FIG. 2), so that it is possible to reduce the weight, reduce the thickness, reduce the size, and save power. Thus, it is possible to obtain an optimum configuration for adding an image projection function to the slide type mobile device. Then, as the projector module 4 constitutes a laser scanning projector as in the present embodiment, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  Even when a projector module other than the laser scanning projector is used as the projector module 4, the above-described effect by the slide opening / closing structure that closes or exposes the projection port 4a can be obtained. For example, even if it is a pixel type projector that uses a semiconductor laser or LED as a light source for illumination and uses an LCD or DLP as a modulation element, Since the eyes may be damaged when projected toward a person, this embodiment that can prevent projection toward a person is also effective.

  As shown in FIG. 5, the mobile device 20 according to the present embodiment is configured to perform relative sliding between the first housing 1 and the second housing 2 by linear movement. Switching between the first state (A), the second state (B), and the third state (C) can be performed with a mechanical structure.

  As shown in FIG. 5, the mobile device 20 according to the present embodiment has a data input key 9D and a projection operation button 9P which are overlapped by the first housing 1 and the second housing 2 in the first state (A). Since both are configured to be covered, there is no possibility that the projection operation button 9P will be pushed when the mobile device 20 is in the contracted first state (A). That is, since the projection operation button 9P is covered as long as the mobile device 20 is in the first state (A), the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 20 is contracted while having a simple configuration. In the second state (B), only the projection operation button 9P is exposed to the outside at the portion where the first housing 1 and the second housing 2 are not overlapped, and therefore only the projection operation is possible. The user can know.

  In the mobile device 20 of the present embodiment, the projector module 4 cannot operate in the first state (A) and the third state (C), and can operate in the second state (B). In addition, it is preferable to electrically control (image projection is not possible during the call mode or the mail mode). For example, the power supply to the projector module 4 is controlled in conjunction with the slide opening / closing structure (by sensor detection) (for example, the power is off in the first state (A), and only the projection operation switch is in the second state (B)). It is preferable that only the projection operation switch is turned off in the third state (C).

  If the projector module 4 is electrically controlled so that it cannot operate in the first state (A), the projection operation is performed when the mobile device 20 is in the contracted first state (A). Even if it is, the laser beam L will not be emitted from the projection port 4a. Accordingly, the laser beam L is not emitted from the projection port 4a in the first state (A) in which the mobile device 20 is contracted, and the projection port 4a is blocked even when electrical control is malfunctioning due to a failure. Therefore, it is possible to reliably prevent the laser light L from being emitted to the outside of the mobile device 20.

<< Third Embodiment (FIG. 6) >>
FIG. 6 shows a cross-sectional structure of a slide type mobile device 30 according to the third embodiment. 6A is a cross-sectional view showing the mobile device 30 in the contracted state (first state), and FIG. 6B is a cross-sectional view showing the mobile device 30 in the extended state (second state). FIG. 6C is a cross-sectional view showing the mobile device 30 in the extended state (third state). As shown in FIG. 6, the mobile device 30 includes a first housing 1 and a second housing 2 provided so as to be relatively slidable, and a laser beam L projected from the projection port 4 a based on the image data. And a projector module 4 for projecting. Although the mobile device 30 is assumed to be a mobile phone with a projector or a mobile terminal with a projector, the mobile device 30 is not limited to this as long as it is a mobile device having an image projection function, as in the first embodiment.

  The mobile device 30 has a slide opening / closing structure. For example, when the second housing 2 is linearly moved in the first state (A) by the slide mechanism (in the direction of the arrow mU), the mobile device 30 is moved. Enters the second state (B), and when the second housing 2 is further moved linearly (in the direction of the arrow mU), the mobile device 30 enters the third state (C). That is, the first state (A) in which the first housing 1 and the second housing 2 are entirely overlapped by the relative sliding of the first housing 1 and the second housing 2, and the first The first case 1 and the second case 2 are partially different from each other in the second state (B) in which the case and the second case partially overlap each other and the second state (B). Switching to the third state (C) overlapped with is performed. Since there are two slide positions, it is possible to set the call / mail mode in the second state (B) and the image projection mode in the third state (C).

  The projector module 4 is built in the second housing 2, and a projection port 4 a is provided on the surface S <b> 2 facing the first housing 1 in the first state (A). Accordingly, in the first state (A), the projection port 4a is blocked by the overlap of the first housing 1 and the second housing 2, and in the second state (B) and the third state (C), The projection port 4a is exposed to the outside at a portion that is out of the overlap of the first housing 1 and the second housing 2. A liquid crystal display unit 3 for displaying an image based on image data is provided on a surface S3 on the back side of the surface S2 provided with the projection port 4a. Since the same image as the projected image can be displayed on the liquid crystal display unit 3, the image can be projected after or while confirming the liquid crystal screen.

  The first casing 1 has a data input key 9D for inputting data and a projection operation button 9P for performing a projection operation on the surface S1 facing the second casing 2 in the first state (A). Is provided. Accordingly, both the data input key 9D and the projection operation button 9P are covered by the overlap of the first housing 1 and the second housing 2 in the first state (A), and the first state in the second state (B). Only the data input key 9D is exposed to the outside at a portion outside the overlap between the case 1 and the second case 2, and the overlap between the first case 1 and the second case 2 in the third state (C). Both of the data input key 9D and the projection operation button 9P are exposed to the outside at a portion deviated from the above.

  As described above, the mobile device 30 according to the present embodiment is configured such that the projection port 4a is blocked by the overlap between the first housing 1 and the second housing 2 in the first state (A). For this reason, even when the light emission of the image projection occurs unexpectedly due to an excessive operation or failure when the mobile device 30 is in the contracted first state (A), there is no risk of projecting toward the person. . That is, as long as the mobile device 30 is in the first state (A), the projection port 4a is closed, so there is no risk that light emitted from the projection port 4a enters the pupils of yourself and others. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 30 is contracted while having a simple configuration. In addition, since the projection opening 4a is blocked by the overlap of the first casing 1 and the second casing 2 in the first state (A), there is an effect that the projection opening 4a can be protected from dust and dirt.

  In the mobile device 30 of the present embodiment, as shown in FIG. 6, the second housing 2 incorporates the projector module 4 and projects onto the surface S <b> 2 facing the first housing 1 in the first state (A). Since the configuration has the opening 4a, the projection opening 4a is blocked by the overlap with the first housing 1 in the first state (A). In the first state (A), since the first housing 1 and the second housing 2 are entirely overlapped, the laser light L is reliably emitted outside the mobile device 30 with a simple configuration. Can be prevented.

  As shown in FIG. 6, in the mobile device 30 of the present embodiment, the second casing 2 has a liquid crystal display unit 3 on a surface S3 on the back side of the surface S2 on which the projection port 4a is provided. Therefore, the projection port 4a is used when the user of the mobile device 30 is looking at the liquid crystal display unit 3 even in the second state (B) and the third state (C) in which the projection port 4a is exposed to the outside. It will not be oriented toward the elderly. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  The liquid crystal display unit 3 has a flat plate shape, and the projector module 4 also has a flat plate shape because it is made of a laser scanning projector that can be thinned. Therefore, as shown in FIG. 6, in the second housing 2, it is preferable to arrange the projector module 4 located on the surface S2 side and the liquid crystal display unit 3 located on the surface S3 side so as to overlap each other. With this arrangement, the mobile device 30 can be effectively thinned. Further, when the mobile device 30 is set to the third state (C) or is shifted to the image projection mode in the third state (C), a display indicating that the image can be projected is performed on the liquid crystal display unit 3. It may be. By displaying that image projection is possible, unintended image projection can be avoided.

  As shown in FIG. 6, the image display surface of the liquid crystal display unit 3 is parallel to the surface S2 on which the projection port 4a is provided. That is, the mobile device 30 according to the present embodiment is configured such that the projector module 4 projects an image in a direction substantially perpendicular to the image display surface of the liquid crystal display unit 3. An image can be projected in substantially the same direction as the line of sight when the liquid crystal display unit 3 is viewed. Therefore, even if the user mistakenly operates the liquid crystal display unit 3 while looking at it, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  In the mobile device 30 of the present embodiment, the projector module 4 is configured to have the laser light sources 5R, 5G, and 5B (FIG. 2), so that it is possible to reduce the weight, reduce the thickness, reduce the size, and save power. Thus, it is possible to obtain an optimum configuration for adding an image projection function to the slide type mobile device. Then, as the projector module 4 constitutes a laser scanning projector as in the present embodiment, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  Even when a projector module other than the laser scanning projector is used as the projector module 4, the above-described effect by the slide opening / closing structure that closes or exposes the projection port 4a can be obtained. For example, even if it is a pixel type projector that uses a semiconductor laser or LED as a light source for illumination and uses an LCD or DLP as a modulation element, Since the eyes may be damaged when projected toward a person, this embodiment that can prevent projection toward a person is also effective.

  As shown in FIG. 6, the mobile device 30 according to the present embodiment is configured to perform relative sliding between the first housing 1 and the second housing 2 by linear movement. Switching between the first state (A), the second state (B), and the third state (C) can be performed with a mechanical structure.

  As shown in FIG. 6, the mobile device 30 according to the present embodiment has a data input key 9D and a projection operation button 9P that are overlapped by the first housing 1 and the second housing 2 in the first state (A). Since both are configured to be covered, there is no possibility that the projection operation button 9P will be pushed when the mobile device 30 is in the contracted first state (A). That is, since the projection operation button 9P is covered as long as the mobile device 30 is in the first state (A), the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 30 is contracted while having a simple configuration. In the second state (B), only the data input key 9D is exposed to the outside at the portion where the first housing 1 and the second housing 2 are not overlapped, and therefore only data input is possible. The user can know. Further, since the projection operation button is exposed to the outside only in the third state (C), the user knows that the image cannot be projected in the first and second states (A) and (B). it can.

  In the mobile device 30 of the present embodiment, the projector module 4 cannot operate in the first state (A) and the second state (B), and can operate in the third state (C). In addition, it is preferable to electrically control (image projection is not possible during the call mode or the mail mode). For example, the power supply to the projector module 4 is controlled in conjunction with the slide opening / closing structure (by sensor detection) (for example, the power is off in the first state (A), and only the projection operation switch is in the second state (B)). It is preferable that only the projection operation switch is turned on in the third state (C).

  If the projector module 4 is electrically controlled so as not to operate in the first state (A), the projection operation is performed when the mobile device 30 is in the contracted first state (A). Even if it is, the laser beam L will not be emitted from the projection port 4a. Therefore, the laser beam L is not emitted from the projection port 4a in the first state (A) in which the mobile device 30 is contracted, and the projection port 4a is blocked even if the electrical control is malfunctioning due to a failure. Therefore, it is possible to reliably prevent the laser light L from being emitted to the outside of the mobile device 30.

<< Fourth Embodiment (FIG. 7) >>
FIG. 7 shows a cross-sectional structure of a slide type mobile device 40 according to the fourth embodiment. 7A is a cross-sectional view showing the mobile device 40 in a contracted state (first state), and FIG. 7B is a cross-sectional view showing the mobile device 40 in an extended state (second state). FIG. 7C is a cross-sectional view showing the mobile device 40 in a stretched state (third state). As shown in FIG. 7, the mobile device 40 includes a first housing 1 and a second housing 2 provided so as to be relatively slidable, and a laser beam L projected from the projection port 4 a based on the image data. And a projector module 4 for projecting. The mobile device 40 is assumed to be a mobile phone with a projector or a mobile terminal with a projector, but is not limited to this as long as it is a mobile device having an image projection function, as in the first embodiment.

  The mobile device 40 has a slide opening / closing structure. When the second housing 2 is moved linearly (in the direction of the arrow mD) by the slide mechanism, for example, in the first state (A), the mobile device 40 is moved. Enters the second state (B), and when the second housing 2 is linearly moved in the opposite direction (in the direction of the arrow mU), the mobile device 40 enters the third state (C). That is, the first state (A) in which the first housing 1 and the second housing 2 are entirely overlapped by the relative sliding of the first housing 1 and the second housing 2, and the first The first case 1 and the second case 2 are partially different from each other in the second state (B) in which the case and the second case partially overlap each other and the second state (B). Switching to the third state (C) overlapped with is performed. Since there are two slide positions, it is possible to set the image projection mode in the second state (B) and the call / mail mode in the third state (C).

  The projector module 4 is built in the second housing 2, and a projection port 4 a is provided on the surface S <b> 2 facing the first housing 1 in the first state (A). Therefore, in the first state (A) and the third state (C), the projection port 4a is blocked by the overlap of the first housing 1 and the second housing 2, and in the second state (B) The projection port 4a is exposed to the outside at a portion that is out of the overlap of the first housing 1 and the second housing 2. A liquid crystal display unit 3 for displaying an image based on image data is provided on a surface S3 on the back side of the surface S2 provided with the projection port 4a. Since the same image as the projected image can be displayed on the liquid crystal display unit 3, the image can be projected after or while confirming the liquid crystal screen.

  The first casing 1 has a data input key 9D for inputting data and a projection operation button 9P for performing a projection operation on the surface S1 facing the second casing 2 in the first state (A). Is provided. Accordingly, both the data input key 9D and the projection operation button 9P are covered by the overlap of the first housing 1 and the second housing 2 in the first state (A), and the first state in the second state (B). Only the projection operation button 9P is exposed to the outside at a portion outside the overlap between the case 1 and the second case 2, and the first case 1 and the second case 2 are overlapped in the third state (C). Only the data input key 9 </ b> D is exposed to the outside at a portion deviated from.

  As described above, the mobile device 40 of the present embodiment has a configuration in which the projection port 4a is blocked by the overlap between the first housing 1 and the second housing 2 in the first state (A). For this reason, even when the light emission of the image projection occurs unexpectedly due to an excessive operation or failure when the mobile device 40 is in the contracted first state (A), there is no possibility of projecting toward the person. . That is, as long as the mobile device 40 is in the first state (A), the projection port 4a is closed, so there is no risk that light emitted from the projection port 4a enters the pupils of yourself or others. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 40 is contracted with a simple configuration. In addition, since the projection opening 4a is blocked by the overlap of the first casing 1 and the second casing 2 in the first state (A), there is an effect that the projection opening 4a can be protected from dust and dirt.

  In the mobile device 40 of the present embodiment, as shown in FIG. 7, the second housing 2 incorporates the projector module 4 and projects onto the surface S <b> 2 facing the first housing 1 in the first state (A). Since the configuration has the opening 4a, the projection opening 4a is blocked by the overlap with the first housing 1 in the first state (A). In the first state (A), since the first casing 1 and the second casing 2 are entirely overlapped, the laser light L is reliably emitted outside the mobile device 40 with a simple configuration. Can be prevented.

  As shown in FIG. 7, in the mobile device 40 of the present embodiment, the second housing 2 has a liquid crystal display unit 3 on the surface S3 on the back side of the surface S2 on which the projection port 4a is provided. Therefore, even in the second state (B) in which the projection port 4a is exposed to the outside, the projection port 4a is arranged facing the user side when the user of the mobile device 40 is looking at the liquid crystal display unit 3. There is nothing. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  The liquid crystal display unit 3 has a flat plate shape, and the projector module 4 also has a flat plate shape because it is made of a laser scanning projector that can be thinned. Therefore, as shown in FIG. 7, in the second housing 2, it is preferable to arrange the projector module 4 located on the surface S2 side and the liquid crystal display unit 3 located on the surface S3 side so as to overlap each other. With this arrangement, the mobile device 40 can be effectively thinned. Further, when the mobile device 40 is set to the second state (B) or is shifted to the image projection mode in the second state (B), a display indicating that the image can be projected is performed on the liquid crystal display unit 3. It may be. By displaying that image projection is possible, unintended image projection can be avoided.

  As shown in FIG. 7, the image display surface of the liquid crystal display unit 3 is parallel to the surface S2 on which the projection port 4a is provided. That is, the mobile device 40 according to the present embodiment is configured such that the projector module 4 projects an image in a direction substantially perpendicular to the image display surface of the liquid crystal display unit 3. An image can be projected in substantially the same direction as the line of sight when the liquid crystal display unit 3 is viewed. Therefore, even if the user mistakenly operates the liquid crystal display unit 3 while looking at it, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  In the mobile device 40 according to the present embodiment, the projector module 4 is configured to have the laser light sources 5R, 5G, and 5B (FIG. 2), so that it is possible to reduce the weight, reduce the thickness, reduce the size, and save power. Thus, it is possible to obtain an optimum configuration for adding an image projection function to the slide type mobile device. Then, as the projector module 4 constitutes a laser scanning projector as in the present embodiment, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  Even when a projector module other than the laser scanning projector is used as the projector module 4, the above-described effect by the slide opening / closing structure that closes or exposes the projection port 4a can be obtained. For example, even if it is a pixel type projector that uses a semiconductor laser or LED as a light source for illumination and uses an LCD or DLP as a modulation element, Since the eyes may be damaged when projected toward a person, this embodiment that can prevent projection toward a person is also effective.

  As shown in FIG. 7, the mobile device 40 according to the present embodiment is configured to perform relative sliding between the first housing 1 and the second housing 2 by linear movement. Switching between the first state (A), the second state (B), and the third state (C) can be performed with a mechanical structure.

  As shown in FIG. 7, the mobile device 40 according to the present embodiment has a data input key 9D and a projection operation button 9P that are overlapped by the first housing 1 and the second housing 2 in the first state (A). Since both are configured to be covered, there is no possibility that the projection operation button 9P will be pushed when the mobile device 40 is in the contracted first state (A). That is, since the projection operation button 9P is covered as long as the mobile device 40 is in the first state (A), the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 40 is contracted with a simple configuration. In the second state (B), only the projection operation button 9P is exposed to the outside at the portion where the first housing 1 and the second housing 2 are not overlapped, and therefore only the projection operation is possible. In the third state (C), only the data input key 9D is exposed to the outside at a portion outside the overlap of the first housing 1 and the second housing 2, The user can know that only data input is possible.

  In the mobile device 40 of the present embodiment, the projector module 4 cannot operate in the first state (A) and the third state (C), and can operate in the second state (B). In addition, it is preferable to electrically control (image projection is not possible during the call mode or the mail mode). For example, the power supply to the projector module 4 is controlled in conjunction with the slide opening / closing structure (by sensor detection) (for example, the power is off in the first state (A) and only the projection operation switch is in the second state (B)). It is preferable that only the projection operation switch is turned off in the third state (C).

  If the projector module 4 is electrically controlled so as not to operate in the first state (A), the projection operation is performed when the mobile device 40 is in the contracted first state (A). Even if it is, the laser beam L will not be emitted from the projection port 4a. Accordingly, the laser light L is not emitted from the projection port 4a in the first state (A) in which the mobile device 40 is contracted, and the projection port 4a is blocked even when the electrical control is malfunctioning due to a failure. Therefore, it is possible to reliably prevent the laser light L from being emitted to the outside of the mobile device 40.

<< Fifth Embodiment (FIG. 8) >>
FIG. 8 shows an appearance of a slide type mobile device 50 according to the fifth embodiment. 8A is a plan view showing the mobile device 50 in a contracted state (first state), and FIG. 8B is a plan view showing the mobile device 50 in a stretched state (second state). FIG. 8C is a plan view showing the mobile device 50 in the extended state (third state). As shown in FIG. 8, the mobile device 50 includes a first housing 1 and a second housing 2 provided so as to be relatively slidable, and a laser beam L projected from the projection port 4 a based on the image data. And a projector module 4 for projecting. The mobile device 50 is assumed to be a mobile phone with a projector or a mobile terminal with a projector, but is not limited to this as long as it is a mobile device having an image projection function, as in the first embodiment.

  The mobile device 50 has a slide opening / closing structure. When the second housing 2 is moved linearly in the first state (A) by the slide mechanism (in the direction of the arrow mU), for example, the mobile device 50 is moved. Enters the second state (B), and when the second housing 2 is rotationally moved (in the direction of the arrow mR), the mobile device 50 enters the third state (C). That is, the first state (A) in which the first housing 1 and the second housing 2 are entirely overlapped by the relative sliding of the first housing 1 and the second housing 2, and the first The first case 1 and the second case 2 are partially different from each other in the second state (B) in which the case and the second case partially overlap each other and the second state (B). Switching to the third state (C) overlapped with is performed. Since there are two slide positions, it is possible to set the call / mail mode in the second state (B) and the image projection mode in the third state (C).

  The projector module 4 is built in the second housing 2, and a projection port 4 a is provided on the surface S <b> 2 facing the first housing 1 in the first state (A). Accordingly, in the first state (A), the projection port 4a is blocked by the overlap of the first housing 1 and the second housing 2, and in the second state (B) and the third state (C), The projection port 4a is exposed to the outside at a portion that is out of the overlap of the first housing 1 and the second housing 2. A liquid crystal display unit 3 for displaying an image based on image data is provided on a surface S3 on the back side of the surface S2 provided with the projection port 4a. Since the same image as the projected image can be displayed on the liquid crystal display unit 3, the image can be projected after or while confirming the liquid crystal screen.

  The first casing 1 has a data input key 9D for inputting data and a projection operation button 9P for performing a projection operation on the surface S1 facing the second casing 2 in the first state (A). Is provided. Accordingly, both the data input key 9D and the projection operation button 9P are covered by the overlap of the first housing 1 and the second housing 2 in the first state (A), and the first state in the second state (B). Only the data input key 9D is exposed to the outside at a portion outside the overlap between the case 1 and the second case 2, and the overlap between the first case 1 and the second case 2 in the third state (C). Both of the data input key 9D and the projection operation button 9P are exposed to the outside at a portion deviated from the above.

  As described above, the mobile device 50 according to the present embodiment is configured such that the projection port 4a is blocked by the overlap between the first housing 1 and the second housing 2 in the first state (A). For this reason, even when the light emission of the image projection occurs unexpectedly due to an excessive operation or failure when the mobile device 50 is in the contracted first state (A), there is no possibility of projecting toward the person. . That is, as long as the mobile device 50 is in the first state (A), the projection port 4a is closed, so there is no risk that light emitted from the projection port 4a enters the pupils of yourself or others. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 50 is contracted with a simple configuration. In addition, since the projection opening 4a is blocked by the overlap of the first casing 1 and the second casing 2 in the first state (A), there is an effect that the projection opening 4a can be protected from dust and dirt.

  In the mobile device 50 according to the present embodiment, as shown in FIG. 8, the second housing 2 incorporates the projector module 4 and projects onto the surface S <b> 2 facing the first housing 1 in the first state (A). Since the configuration has the opening 4a, the projection opening 4a is blocked by the overlap with the first housing 1 in the first state (A). In the first state (A), since the first housing 1 and the second housing 2 are entirely overlapped, the laser light L is reliably emitted outside the mobile device 50 with a simple configuration. Can be prevented.

  As shown in FIG. 8, in the mobile device 50 of the present embodiment, the second housing 2 has a liquid crystal display unit 3 on a surface S3 on the back side of the surface S2 on which the projection port 4a is provided. Therefore, even in the second state (B) and the third state (C) where the projection port 4 a is exposed to the outside, the projection port 4 a is used when the user of the mobile device 50 is looking at the liquid crystal display unit 3. It will not be oriented toward the elderly. Therefore, it is possible to prevent the user from projecting toward himself / herself.

  The liquid crystal display unit 3 has a flat plate shape, and the projector module 4 also has a flat plate shape because it is made of a laser scanning projector that can be thinned. Therefore, as shown in FIG. 8, in the second housing 2, it is preferable to arrange the projector module 4 positioned on the surface S2 side and the liquid crystal display unit 3 positioned on the surface S3 side so as to overlap each other. With this arrangement, the mobile device 50 can be effectively thinned. Further, when the mobile device 50 is set to the third state (C) or is shifted to the image projection mode in the third state (C), a display indicating that the image can be projected is performed on the liquid crystal display unit 3. It may be. By displaying that image projection is possible, unintended image projection can be avoided.

  As shown in FIG. 8, the image display surface of the liquid crystal display unit 3 is parallel to the surface S2 on which the projection port 4a is provided. That is, the mobile device 50 according to the present embodiment is configured so that the projector module 4 projects an image in a direction substantially perpendicular to the image display surface of the liquid crystal display unit 3. An image can be projected in substantially the same direction as the line of sight when the liquid crystal display unit 3 is viewed. Therefore, even if the user mistakenly operates the liquid crystal display unit 3 while looking at it, there is no possibility of projecting toward himself / herself, so that great safety can be ensured.

  In the mobile device 50 according to the present embodiment, since the projector module 4 has the laser light sources 5R, 5G, and 5B (FIG. 2), it is possible to reduce the weight, reduce the thickness, reduce the size, and save power. Thus, it is possible to obtain an optimum configuration for adding an image projection function to the slide type mobile device. Then, as the projector module 4 constitutes a laser scanning projector as in the present embodiment, it is possible to contribute to reducing the weight, thickness, size and power consumption of mobile devices.

  Even when a projector module other than the laser scanning projector is used as the projector module 4, the above-described effect by the slide opening / closing structure that closes or exposes the projection port 4a can be obtained. For example, even if it is a pixel type projector that uses a semiconductor laser or LED as a light source for illumination and uses an LCD or DLP as a modulation element, Since the eyes may be damaged when projected toward a person, this embodiment that can prevent projection toward a person is also effective.

  As shown in FIG. 8, the mobile device 50 according to the present embodiment is configured to perform relative sliding between the first housing 1 and the second housing 2 by linear movement and rotational movement. Therefore, the first state (A) and the second state (B) can be switched with a simple mechanical structure, and the first housing can be switched to the third state (C). The partial overlap between the first housing 2 and the second housing 2 can be made suitable for operability.

  As shown in FIG. 8, the mobile device 50 according to the present embodiment has a data input key 9D and a projection operation button 9P that are overlapped by the first housing 1 and the second housing 2 in the first state (A). Since both are configured to be covered, there is no possibility that the projection operation button 9P will be pushed when the mobile device 50 is in the contracted first state (A). That is, since the projection operation button 9P is covered as long as the mobile device 50 is in the first state (A), the image projection operation cannot be performed, and as a result, the image projection is not started. Therefore, it is possible to reliably prevent the laser light L from being emitted in a state where the mobile device 50 is contracted with a simple configuration. In the second state (B), only the data input key 9D is exposed to the outside at the portion where the first housing 1 and the second housing 2 are not overlapped, and therefore only data input is possible. The user can know. Further, since the projection operation button is exposed to the outside only in the third state (C), the user knows that the image cannot be projected in the first and second states (A) and (B). it can.

  In the mobile device 50 of the present embodiment, the projector module 4 cannot operate in the first state (A) and the second state (B), and can operate in the third state (C). In addition, it is preferable to electrically control (image projection is not possible during the call mode or the mail mode). For example, the power supply to the projector module 4 is controlled in conjunction with the slide opening / closing structure (by sensor detection) (for example, the power is off in the first state (A), and only the projection operation switch is in the second state (B)). It is preferable that only the projection operation switch is turned on in the third state (C).

  If the projector module 4 is electrically controlled so as not to operate in the first state (A), the projection operation is performed when the mobile device 50 is in the contracted first state (A). Even if it is, the laser beam L will not be emitted from the projection port 4a. Accordingly, the laser beam L is not emitted from the projection port 4a in the first state (A) in which the mobile device 50 is contracted, and the projection port 4a is blocked even if the electrical control is malfunctioning due to a failure. Therefore, it is possible to reliably prevent the laser light L from being emitted out of the mobile device 50.

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 2nd housing | casing 3 Liquid crystal display part (display part)
4 Projector module 4a Projection port 5R, 5G, 5B Laser light source 6R, 6G, 6B Collimator lens 7a, 7b Dichroic prism 8 MEMS scanner (deflection device)
8a Mirror 9 Operation unit 9P Projection operation button 9D Data input key 10, 20, 30, 40, 50 Mobile device L Laser beam AX Optical axis SC Screen surface

Claims (12)

A slide type having an image projecting function, comprising: a first housing and a second housing that are relatively slidable; and a projector module that projects an image based on image data with light projected from a projection port. A mobile device,
A first state in which the first casing and the second casing overlap with each other due to relative sliding between the first casing and the second casing, and the first casing and the second casing Switching to the second state where the second housing partially overlaps is performed,
In the first state, the projection opening is blocked by the overlap between the first case and the second case, and in the second state, the overlap between the first case and the second case. The mobile device, wherein the projection port is exposed to the outside at a detached part.   The mobile device according to claim 1, wherein the projector module is electrically controlled so that the projector module is not operable in the first state and is operable in the second state.   3. The mobile device according to claim 1, wherein the second casing includes the projector module, and has the projection port on a surface facing the first casing in the first state.   The mobile device according to claim 3, wherein the second housing has a display unit that displays an image based on image data on a surface on the back side of the surface on which the projection port is provided.   The mobile device according to claim 4, wherein the projector module projects an image in a direction substantially perpendicular to the image display surface of the display unit.   The mobile device according to claim 1, wherein the projector module includes a laser light source that generates light for image projection.   The projector module is a laser scanning projector provided with a deflecting device that deflects laser light from the laser light source in two directions orthogonal to each other, and a screen surface by laser light deflected and scanned two-dimensionally by the deflecting device. The mobile device according to claim 6, wherein image projection is performed on the mobile device.   The mobile device according to claim 1, wherein relative sliding between the first housing and the second housing is performed by linear or rotational movement.   The first casing has an operation unit for performing a projection operation on a surface facing the second casing in the first state, and the first casing and the first casing in the first state. The operation unit is covered by an overlap with two housings, and the operation unit is exposed to the outside at a portion outside the overlap between the first housing and the second housing in the second state. The mobile device according to any one of claims 1 to 8. The first housing and the second housing partially overlap in a form different from the second state in the state switching by relative sliding between the first housing and the second housing. In the third state, the first casing performs a data input key for performing data input and a projection operation on the surface facing the second casing in the first state. A projection operation button for
In the first state, the data input key and the projection operation button are both covered by the overlap of the first casing and the second casing. In the second state, the first casing and the second casing are covered. Only the projection operation button is exposed to the outside at a portion outside the overlap with the two housings, and the projection operation is performed at a portion outside the overlap between the first housing and the second housing in the third state. The mobile device according to claim 1, wherein both the button and the data input key are exposed to the outside. The first housing and the second housing partially overlap in a form different from the second state in the state switching by relative sliding between the first housing and the second housing. In the third state, the first casing performs a data input key for performing data input and a projection operation on the surface facing the second casing in the first state. A projection operation button for
In the first state, the data input key and the projection operation button are both covered by the overlap of the first casing and the second casing. In the second state, the first casing and the second casing are covered. Only the data input key is exposed to the outside at a portion outside the overlap with the two cases, and the data input at a portion outside the overlap between the first case and the second case in the third state The mobile device according to claim 1, wherein both the key and the projection operation button are exposed to the outside. The first housing and the second housing partially overlap in a form different from the second state in the state switching by relative sliding between the first housing and the second housing. In the third state, the first casing performs a data input key for performing data input and a projection operation on the surface facing the second casing in the first state. A projection operation button for
In the first state, the data input key and the projection operation button are both covered by the overlap of the first casing and the second casing. In the second state, the first casing and the second casing are covered. Only the projection operation button is exposed to the outside at a portion outside the overlap with the two cases, and the data input at the portion outside the overlap between the first case and the second case in the third state The mobile device according to claim 1, wherein only the key is exposed to the outside.

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