JP2009163180A - Portable optical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable optical apparatus capable of being downsized when being not used, thereby improving its portability. <P>SOLUTION: The portable optical apparatus includes: objective lenses 3A and 3B, left and right; image pickup elements 5A and 5B disposed in positions where light rays from corresponding objective lenses 3A and 3B, left and right, are imaged; and liquid crystal display elements 2 for displaying images photographed by the image pickup elements 5A and 5B. The portable optical apparatus adopts magnifying observation lenses 4A and 4B that are able to be disposed in a position corresponding to a width between the eyes of an observer and in directions where light rays from the corresponding liquid crystal display elements 2 travel and able to be accommodated in a housing 1 incorporating the objective lenses 3A and 3B and the image pickup means 5A and 5B. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable optical device.

Conventionally, the light beam from the objective lens can be guided to the eyepiece lens through the erecting prism for binocular observation, and the light beam from the objective lens is imaged on the CCD image pickup device through the CCD imaging lens to obtain the CCD image. There is known an electronic binocular that can guide an image taken by an element to an eyepiece through an erecting prism for observation (see the following publication).
JP 2002-341254 A

  However, the electronic binoculars have a problem that they are not portable because they must be carried in the same state as when they are used (they remain large) even when they are not in use.

  The present invention has been made in view of such circumstances, and an object of the present invention is to improve the portability of a portable optical device by enabling the miniaturization when not in use.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that left and right objective lenses, a plurality of imaging means provided at positions where light from the left and right objective lenses forms an image, and the plurality of imaging In a portable optical device having different position display areas corresponding to the means and having an image display means for displaying an image taken by the imaging means, each of the positions corresponds to the eye width of the observer. A plurality of enlargements that can be arranged and each can be arranged in a traveling direction of a light beam emitted from the image display means, and can be housed in a housing in which the objective lens and the imaging means are incorporated. An observation lens is provided.

  According to a second aspect of the present invention, in the portable optical device according to the first aspect, the magnification observation lens is movable in a direction perpendicular to the optical axis.

  According to a third aspect of the present invention, in the portable optical device according to the first or second aspect, the magnification observation lens is movable in the optical axis direction.

  According to a fourth aspect of the present invention, in the portable optical device according to any one of the first to third aspects of the present invention, the portable optical device further includes left and right image interval adjusting means for adjusting an interval between left and right images displayed on the image display means. It is characterized by.

  According to a fifth aspect of the present invention, in the portable optical device according to the fourth aspect, the left and right image interval adjusting means adjusts the interval according to the distance to the observation object.

  A sixth aspect of the present invention is the portable optical device according to the fourth or fifth aspect, further comprising eye width input means for inputting an eye width value of an observer, wherein the left and right image interval adjusting means is the eye width input means. The interval between the left and right images displayed on the image display means is adjusted according to the value of.

  According to a seventh aspect of the present invention, in the portable optical device according to the first aspect, the image display means is rotatably supported by the housing via a first rotation support means.

  According to an eighth aspect of the present invention, in the portable optical device according to the seventh aspect of the present invention, the second rotation support means is arranged so that the magnification observation lens is in a position facing directly when the image display means is rotated. And is rotatably supported by the casing.

  According to a ninth aspect of the present invention, in the portable optical device according to the eighth aspect of the present invention, the portable optical device further includes a reflection unit that reflects the light emitted from the image display unit toward the magnification observation lens.

  According to a tenth aspect of the present invention, in the portable optical device according to the first aspect, the magnification observation lens is supported by a support member bent at a right angle, and the side of the support member on which the magnification observation lens is supported is supported. The support member is supported at the opposite end by a rotation support mechanism having a rotation axis in a direction parallel to the display surface of the image display means.

  An eleventh aspect of the present invention is the portable optical device according to any one of the first to tenth aspects, wherein an opening for guiding light from the outside to the imaging unit is a back surface of the image display unit or the image. It is characterized in that it is formed in the casing that is connected to the back surface of the image display means when the display means is in the use position.

  According to a twelfth aspect of the present invention, in the portable optical device according to any one of the first to eleventh aspects, an image / audio information recording / reproducing operation for recording / reproducing image information input from an external image acquisition means provided outside It has the means.

  A thirteenth aspect of the present invention is the portable optical device according to the twelfth aspect, further comprising an external audio input means for inputting an external sound, converting the sound into an electric signal, and recording it on the image / audio information recording / reproducing means. It is characterized by.

  According to the present invention, the portability of the portable optical device can be improved by reducing the size when not in use.

  Embodiments of the present invention will be described below with reference to the drawings.

  1A is a rear view of a portable optical device according to the first embodiment of the present invention, FIG. 1B is a plan view, FIG. 1C is a bottom view, and FIG. 1D is a side view, 1 (e) is a front view, FIG. 1 (f) is a fractured surface taken along the line FF of FIG. 1 (e), FIG. 2 (a) is a perspective view showing a use state of a magnification observation lens, and FIG. (B) is a perspective view which shows the accommodation state of the lens for magnification observation. A part of FIGS. 1A and 1E is broken.

  This portable optical device includes a housing 1 and magnified observation lenses 4A and 4B.

  A liquid crystal display element (image display means) 2 and a speaker (audio output means (see FIG. 4)) 34 provided in the casing 1 are provided on the surface of the casing 1. The liquid crystal display element 2 has display areas 2A and 2B corresponding to the left and right eyes. In the display areas 2A and 2B, images captured by the image sensors (imaging means) 5A and 5B (only the image sensor 5B is shown in FIG. 1) are displayed. In this embodiment, the liquid crystal display element 2 is composed of one liquid crystal display element, but may be composed of separate left and right liquid crystal display elements. Note that either the left or right image may be displayed on the entire liquid crystal display element 2. The center-to-center distance s between the display areas 2A and 2B is about 64 mm.

  The housing 1 is provided with a built-in microphone (main body audio input means (see FIG. 4)) 33, a scanner 7 (slit 7a, distance conversion roller 7b), openings 40A and 40B, and an eye width adjustment mechanism 41. Yes. The scanner 7 has a light source and a sensor (not shown) in the slit 7a, and reads the image of the surface closely contacting the back surface by moving the portable optical device while rolling the roller 7b. Note that a two-dimensional image sensor may be employed instead of the scanner 7.

  The eye width adjustment mechanism 41 includes, for example, a cylindrical portion 41a and a screw 41b that constitute a ball screw. By rotating the cylindrical portion 41a that is screwed into the screw 41b, the left and right magnification observation lenses 4A and 4B are moved in the direction orthogonal to the optical axis to change the distance between the left and right magnification observation lenses 4A and 4B (FIG. 2). (See (a)). Anti-slip knurled eyes are formed on the surface of the cylindrical portion 41a.

  Concave portions 1A and 1B for accommodating the magnification observation lenses 4A and 4B are formed on both side surfaces of the housing 1. When the magnification observation lens 4A is housed in the recess 1A, one side surface of the housing 1 is substantially flush, and when the magnification observation lens 4B is housed in the recess 1B, the other side surface of the housing 1 is substantially surface. Become one. An input terminal, for example, a USB terminal 42 is provided on one side surface of the housing 1.

  On the upper surface of the housing 1, a power button 51, a zoom button 52, an eye width input knob (eye width input means) 22, and a shutter button 53 are provided. When the power button 51 is pressed, the portable optical device is turned on, and when the power button 51 is pressed again, the portable optical device is turned off. The zoom button 52 has a button W and a button T. The button W is a wide-angle button, and the button T is a telephoto button. The eye width input knob 22 is a knob for inputting the value of the eye width of the observer in the range of 56 to 70 mm, for example.

  One end of an L-shaped arm portion 14A bent at a right angle is rotatably supported on the bottom surface of the housing 1 via a connecting portion (second rotation support means) 6A, and one end of the arm portion 14B is connected to a connecting portion (first 2 rotation support means) 6B. The connecting portions 6A and 6B are attached to the screws 41b and 41b, respectively. In response to the rotation of the cylindrical portion 41a, the screw 41b rotates, and the connecting portions 6A and 6B screwed with the surface of the screw 41b move in the longitudinal direction of the screw 41b.

  The housing 1 has left and right prisms 10 and objective lenses 3A and 3B (only the objective lens 3B is shown in FIG. 1), left and right imaging elements 5A and 5B, a CPU 60 (see FIG. 3), and a memory 61 (FIG. 3). See). The CPU 60 controls the operation of the entire portable optical device.

  The left and right prisms 10 face the openings 40A and 40B formed on the front surface of the housing 1, respectively, and reflect the light incident into the housing 1 from the outside toward the objective lenses 3A and 3B, respectively. Light from the objective lenses 3A and 3B facing each other enters the imaging elements 5A and 5B.

  Although not shown, in order to obtain the same image with the imaging optical system composed of the left and right objective lenses 3A and 3B and the imaging elements 5A and 5B in short-distance observation, the imaging direction of the imaging optical system may be tilted. Good.

  The connecting portions 6A and 6B pivotally support the arm portions 14A and 14B, and the axial direction is set in a direction parallel to the display surface of the liquid crystal display element 2. Each of the arm portions 14A and 14B is bent at a right angle. The magnification observation lenses 4A and 4B are held at the other ends of the arm portions 14A and 14B. The magnification observation lenses 4A and 4B rotate the arm portions 14A and 14B so that the observation position shown in FIG. 2A (position where observation can be performed using the observation lens) and the storage position shown in FIG. 2B. (Position where the observation lens is accommodated). Further, diopter adjustment mechanisms 4a and 4b for moving the magnification observation lens 4 in the optical axis direction using screws (not shown) are provided at the other ends of the arm portions 14A and 14B, respectively.

  FIG. 3 is a block diagram of the portable optical device according to the first embodiment of the present invention, FIG. 4 is a diagram showing functions of the portable optical device, and FIG. 5 is a calculation of the distance from the portable optical device to the observation object. It is a conceptual diagram for demonstrating a method.

  This portable optical device includes a CPU 60, a memory 61, a liquid crystal display element 2, image sensors 5 </ b> A and 5 </ b> B, a scanner 7, a built-in microphone 33, a speaker 34, an external microphone (external audio input means) 32, and a USB terminal 42.

  The imaging elements 5A and 5B capture external images through the prism 10 and the objective lenses 3A and 3B as described above. Image data is stored in the memory 61. The image data picked up by the scanner 7 is read by an OCR (optical character reading means) and stored in the memory 61.

  The CPU 60 has a function of image / audio information recording / reproducing means, and stores it in the memory 61 or displays an image (upright image) on the liquid crystal display element 2.

  The CPU 60 has functions as enlargement display means, translation means, left and right image interval adjustment means, distance calculation means, image trimming means, and image / audio information recording / reproducing means.

  The translation means translates the character information in the image data read by the OCR into another language, or adds a character annotation by the dictionary function of the translation means.

  The left and right image interval adjusting means adjusts the interval between the left and right images according to the distance to the observation object (the interval decreases as the distance decreases). By this adjustment, a convergence angle suitable for the eyes of the observer can be generated. It is effective to obtain the same image with the left and right imaging optical systems in short-distance observation (Note that, in short-distance observation, the distance between the left and right images is set to the observer's eye width in the same way as infinite-distance observation. Also good). The left and right image interval adjusting means adjusts the image interval on the left and right display areas 2A and 2B of the liquid crystal display element 2 in accordance with the eye width value input from the eye width input knob 22. Further, the interval adjusting means detects a difference in position and inclination between the left and right images caused by an assembly error between the left and right imaging elements 5A and 5B based on coordinate information on the liquid crystal display element 2 of the left and right images. Adjust the position of the image on the display area.

  The image / sound information recording / reproducing means also records image / sound information from the external image acquisition unit (see the third embodiment) such as the stereomicroscope unit 9, the built-in microphone 33, and the external microphone 32. The image / audio information recording / reproducing means outputs the image recorded in the memory 61 to the display of the personal computer via the output terminal (external output means) 27 and outputs the recorded sound to the outside through the speaker 34.

  The distance calculation means obtains the distance from the portable optical device to the observation object from the position information of the left and right images on the liquid crystal imaging devices 5A and 5B as follows. However, it is assumed that the observation object is on the center line (a line connecting the midpoint between the left and right imaging elements 5A and 5B and the midpoint of the left and right objective lenses 3A and 3B).

From the lens imaging position formula, if the focal length of the lens is f,

また、ｔａｎθ＝ｙ／ｂ＝ｐ／２ａから Equation 1 is transformed.

From tan θ = y / b = p / 2a

数２を数３に代入し、変形する。

Substituting Equation 2 into Equation 3 for transformation.

数４を解く。

Solve Equation 4.

  As a result, the distance a from the portable optical device to the observation object is obtained.

  Here, a description will be given based on FIG. θ is an angle formed between a line orthogonal to the image sensor 5 and the objective lens 3A, 3B and a light beam connecting the observation target T and the imaged point, and y is orthogonal to the image sensor 5 and the objective lens. 3A and 3B, the optical axis and the imaging point on the image pickup devices 5A and 5B, p is the distance between the objective lenses 3A and 3B, and a is the distance between the observation target T and the objective lenses 3A and 3B. , B are distances between the objective lenses 3A, 3B and the image sensors 5A, 5B.

  The image trimming means obtains the same image with an imaging optical system composed of the left and right objective lenses 3A and 3B and the imaging elements 5A and 5B in short-distance observation. The area where the left and right images overlap is determined according to the distance from the observation object to the observation object, and only the area where the left and right images overlap is cut out.

  The enlarged display means enlarges the image captured by the scanner 7 and displays it on the liquid crystal display element 2 (loupe function). For example, when the area where the left and right images overlap is small in short-distance observation, The image is enlarged and displayed on the liquid crystal display element 2.

  Next, a method of using this portable optical device will be described.

  First, the power button 51 is pressed. Images acquired by the imaging elements 5A and 5B are displayed in the display areas 2A and 2B of the liquid crystal display element 2 through the openings 40A and 40B.

  Next, the arm portions 14A and 14B are rotated by 90 ° about the connecting portions 6A and 6B, respectively, and the magnification observation lenses 4A and 4B are moved from the storage position (see FIG. 2B) to the observation position (FIG. 2A). To see). As a result, the magnification observation lens 4A and the display area 2A face each other, and the magnification observation lens 4B and the display area 2B face each other.

  Thereafter, the diopter adjusting mechanisms 4a and 4b are used to move the magnification observation lenses 4A and 4B in the optical axis direction so as to match the visual acuity of the observer. Further, the eye width adjusting mechanism 41 is used to move the arm portions 14A and 14B in a direction orthogonal to the optical axis to match the eye width of the observer. As a result, the magnification observation lenses 4 </ b> A and 4 </ b> B are arranged at a position corresponding to the eye width of the observer and in the traveling direction of the light emitted from the liquid crystal display element 2. At this time, the position of the display image displayed on the liquid crystal display element 2 is also shifted according to the movement of the magnification observation lenses 4A and 4B.

  An object to be observed is observed on the image displayed on the liquid crystal display element 2 through the magnification observation lenses 4A and 4B. At this time, the observer can stereoscopically observe the observation object.

  When this portable optical device is used as a magnifying glass, for example, the scanner 7 is brought into close contact with a paper surface on which text or the like is written, and characters or the like displayed on the liquid crystal display element 2 are magnified by the magnification observation lenses 4A and 4B. I can read it. Even when the magnification observation lenses 4A and 4B are not used, the liquid crystal display element 2 can be magnified and have a loupe function. The character information read by the scanner 7 can be translated into another language, and the characters can be annotated.

  By pressing the shutter button 53, the image of the observation object can be stored in the memory 61. At this time, the left and right images with parallax are stored in the memory 61.

  Further, for example, an image created separately from the outside can be input via the USB terminal 42 and displayed as information, stereoscopically displayed as a manual, or used for eye function training or the like.

  Note that the magnification observation lenses 4A and 4B can be accommodated in the housing 1 so that stereoscopic viewing with the naked eye is possible.

  According to this embodiment, the magnification observation lenses 4A and 4B can be housed in the housing 1 when the portable optical device is not used. Therefore, the portable optical device can be reduced in size when the portable optical device is not used. Can be improved. Further, since the eye width adjustment mechanism 41 that moves the magnification observation lenses 4A and 4B in the direction orthogonal to the optical axis is provided, the left and right magnification observation lenses 4A and 4B are positioned corresponding to the eyes width of the observer. Can be arranged. Furthermore, since the diopter adjustment mechanisms 4a and 4b for moving the magnification observation lenses 4A and 4B in the optical axis direction are provided, the magnification observation lenses 4A and 4B are moved in the optical axis direction so that the visual acuity of the observer is obtained. Can be matched. In addition, since the distance between the left and right images can be adjusted according to the distance to the observation object, the angle of convergence between the left and right images on the display areas 2A and 2B of the liquid crystal display element 2 is suitable for the eyes of the observer. It can be. In addition, since the opening direction of the openings 40A and 40B formed on the front surface of the housing 1 and the line of sight of the observer looking at the liquid crystal display element 2 are substantially the same direction, it is easy to catch the observation object.

  FIG. 6A is a perspective view showing the use state of the magnification observation lens of the portable optical device according to the second embodiment of the present invention, and FIG. 6B is a perspective view showing the storage state of the magnification observation lens. The parts common to the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  This embodiment is different from the first embodiment in that the liquid crystal display element 2 is rotatably supported by the housing 101.

  This portable optical device includes a casing 1, magnification observation lenses 4 </ b> A and 4 </ b> B, and a liquid crystal display element 2.

  The liquid crystal display element 2 is provided on a lid member 101 </ b> C that is rotatably supported by a housing 101 via a hinge (first rotation support means) 11.

  Enlarged observation lenses 4A and 4B, an eye width adjustment mechanism 41, a power button 51, a zoom button 52, and the like are provided on the upper surface of the housing 1.

  The magnification observation lenses 4A and 4B are held at the other ends of the arm portions 114A and 114B that are rotatably supported by the housing 101 via connecting portions (second rotation support means) 106A and 106B. The magnifying observation lenses 4A and 4B are located between a storage position stored in the recesses 101A and 101B formed on the upper surface of the housing 101 and an observation position rotated by 90 ° from the storage position (see FIG. 6A). It is movable. When the arm portions 114A and 114B are accommodated in the recesses 101A and 101B, the arm portions 114A and 114B and the upper surface of the housing 101 are substantially flush with each other.

  Diopter adjustment mechanisms 4a and 4b for moving the magnification observation lenses 4A and 4B in the optical axis direction using screws (not shown) are provided at the other ends of the arm portions 114A and 114B.

  Although not shown, this portable optical device has an external microphone 32 (see FIG. 4) for inputting external sound and recording it in the image / audio information recording / reproducing means.

  Next, a method of using this portable optical device will be described.

  First, the lid member 101C is rotated in the direction indicated by the arrow so that the liquid crystal display element 2 and the housing 101 form approximately 90 ° (see FIG. 6B).

  Next, the power button 51 is pressed. An image in a direction in which an opening (not shown) is directed is displayed on the liquid crystal display element 2.

  Thereafter, the arm portions 114A and 114B are rotated by 90 ° about the coupling portions 106A and 106B, so that the magnification observation lenses 4A and 4B are set to the observation position (see FIG. 6A). The magnification observation lenses 4A and 4B and the liquid crystal display element 2 face each other.

  Next, the opening is directed toward the observation object, and the magnification observation lenses 4A and 4B are moved in the optical axis direction using the observation diopter adjusting mechanisms 4a and 4b to match the visual acuity of the observer. In addition, the magnification observation lenses 4A and 4B are moved in the direction orthogonal to the optical axis by using the eye width adjustment mechanism 41 to match the eye width of the observer. As a result, the magnification observation lenses 4 </ b> A and 4 </ b> B are arranged at a position corresponding to the eye width of the observer and in the traveling direction of the light emitted from the liquid crystal display element 2.

  According to this embodiment, the same effects as those of the first embodiment can be obtained.

  7A is a perspective view showing a state in which a lid member of a portable optical device according to a third embodiment of the present invention is closed, FIG. 7B is a perspective view showing a state in which the lid member is opened, FIG. (C) is a perspective view which shows the use condition of the magnification observation lens, the same code | symbol is attached | subjected to the part which is common in 2nd Embodiment, and the description is abbreviate | omitted.

  This embodiment is different from the second embodiment in that the magnification observation lens 204 is a Fresnel lens (or diffractive optical element).

  By using a Fresnel lens as the magnification observation lens 204, the lens diameter can be increased. The Fresnel lens can be molded from a single thin plastic plate. Each Fresnel lens opposes the display areas 2A and 2B of the liquid crystal display element 2, respectively.

  This portable optical device can be used in the same manner as in the above embodiment. Further, the portable optical device is placed on, for example, a flat table (not shown), and an image acquired by a stereomicroscope unit (external image acquisition means (see FIG. 4)) 9 having a pair of imaging elements is obtained. Can be observed. The stereomicroscope unit 9 is connected to the stereomicroscope unit 9, and image data corresponding to the left and right imaging optical systems of the stereomicroscope unit 9 is taken into a portable optical device. The image data captured by the portable optical device is displayed in the left and right display areas 2A and 2B of the liquid crystal display element 2, and an image observed by the stereomicroscope unit 9 is observed through the magnification observation lens 204.

  According to this embodiment, the same effects as those of the second embodiment and the following effects are obtained.

  Since the diameter of the observation lens can be increased by molding the Fresnel lens with plastic, the image displayed on the liquid crystal display element 2 can be easily seen, and further, the eye width adjustment mechanism can be omitted.

  In addition, since the magnification observation lens 4 can be thinned, the portable optical device can be made thinner and smaller than the second embodiment. Furthermore, since it is stable when the portable optical device is placed on a table, it is easy to use when performing microscopic observation or the like.

  FIG. 8 is a conceptual diagram showing a cross section of a portable optical device in use according to the third embodiment of the present invention. The same reference numerals are given to the parts common to the third embodiment, and the description thereof is omitted.

  This embodiment is the third point in that a total reflection mirror (reflecting means) 8 is arranged on the upper surface of the casing 301 so that the light emitted from the liquid crystal display element 2 is reflected toward the magnification observation lens 204. It is different from the embodiment.

  When the portable optical device is used, the liquid crystal display element 2 and the magnification observation lens 204 are inclined by 45 ° with respect to the upper surface of the housing 301, and the liquid crystal display element 2 is supported by the magnification observation lens 204. . The CPU 60 displays an inverted image on the liquid crystal display element 2 so that the observer can easily observe.

  According to this embodiment, the same effects as those of the third embodiment can be obtained, and observation can be performed with a reasonable posture.

1A is a rear view of a portable optical device according to the first embodiment of the present invention, FIG. 1B is a plan view, FIG. 1C is a bottom view, and FIG. 1D is a side view, FIG.1 (e) is a front view, FIG.1 (f) is a torn surface which follows the FF line | wire of FIG.1 (e). FIG. 2A is a perspective view showing a usage state of the magnification observation lens, and FIG. 2B is a perspective view showing a storage state of the magnification observation lens. FIG. 3 is a block diagram of the portable optical apparatus according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating functions of the portable optical device. FIG. 5 is a conceptual diagram for explaining a method of calculating the distance from the portable optical device to the observation object. FIG. 6A is a perspective view showing the use state of the magnification observation lens of the portable optical device according to the second embodiment of the present invention, and FIG. 6B is a perspective view showing the storage state of the magnification observation lens. is there. 7A is a perspective view showing a state in which a lid member of a portable optical device according to a third embodiment of the present invention is closed, FIG. 7B is a perspective view showing a state in which the lid member is opened, FIG. (C) is a perspective view which shows the use condition of the magnification observation lens. FIG. 8 is a conceptual diagram showing a cross-section of the usage state of the portable optical device according to the third embodiment of the present invention.

Explanation of symbols

  1: casing, 2: liquid crystal display element (image display means), 3A, 3B: objective lens, 4A, 4B: magnification observation lens, 5A, 5B: imaging element (imaging means), 6A, 6B, 106A, 106B : Connecting part (second rotation support means), 8: total reflection mirror (reflection means), 9: stereomicroscope unit (external image acquisition means), 11: hinge (first rotation support means), 22: eye width Input knob (eye width input means), 32: external microphone (external audio input means), 40: aperture, 41: eye width adjustment mechanism, 60: CPU.

Claims (13)

The left and right objective lenses, a plurality of imaging means provided at positions where light from the left and right objective lenses forms an image, and a different position display area corresponding to the plurality of imaging means, the imaging means In a portable optical device provided with an image display means for displaying an image taken in
Each can be arranged in a position corresponding to the eye width of the observer, and each can be arranged in the traveling direction of the light beam emitted from the image display means, and the objective lens and the imaging means are incorporated. A portable optical device comprising a plurality of magnification observation lenses that can be stored in a housing.   2. The portable optical device according to claim 1, wherein the magnification observation lens is movable in a direction perpendicular to the optical axis thereof.   3. The portable optical device according to claim 1, wherein the magnification observation lens is movable in the optical axis direction.   The portable optical device according to claim 1, further comprising a left-right image interval adjusting unit that adjusts an interval between left and right images displayed on the image display unit.   5. The portable optical apparatus according to claim 4, wherein the left and right image interval adjusting means adjusts the interval according to a distance to the observation object.   Eye width input means for inputting the value of the eye width of the observer, and the left and right image interval adjusting means adjusts the interval between the left and right images displayed on the image display means in accordance with the value of the eye width input means. The portable optical device according to claim 4 or 5, wherein the portable optical device is a portable optical device.   2. The portable optical device according to claim 1, wherein the image display means is rotatably supported by the housing via a first rotation support means.   The magnifying observation lens is rotatably supported by the casing via a second rotation support unit so as to be in a position facing the image display unit when the image display unit is rotated. Item 8. The portable optical device according to Item 7.   9. The portable optical device according to claim 8, further comprising reflecting means for reflecting light emitted from the image display means toward the magnification observation lens.   The magnifying observation lens is supported by a support member bent at a right angle, and the end of the support member opposite to the side on which the magnifying observation lens is supported is parallel to the display surface of the image display means. 2. The portable optical device according to claim 1, wherein the support member is supported by a rotation support mechanism having a rotation shaft.   An opening for guiding light from the outside to the image pickup means is formed in the casing that is continuous with the back face of the image display means or the back face of the image display means when the image display means is used. The portable optical device according to claim 1, wherein:   12. The portable optical apparatus according to claim 1, further comprising an image / audio information recording / reproducing unit for recording / reproducing image information input from an external image acquisition unit provided outside.   13. The portable optical device according to claim 12, further comprising external audio input means for inputting an external sound, converting the sound into an electric signal, and recording the image / audio information recording / reproducing means.

Images