JP2003233126A - Portable apparatus with photographic optical means - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the quality and reliability of projection display. <P>SOLUTION: An organic EL, a light condensing bead, a driving circuit, and a controller are unitized to improve the positioning precision in light projection unit replacement and decrease connection terminals, thereby realizing small-sized constitution and improved connection reliability. An organic EL unit fitting housing comprises a three-directional press part and an energizing part to precisely position the unit. In unit replacement, a main power source is turned off when a replacement lid is opened to prevent breakage of the unit due to noise in the replacement and a rush after the replacement. A light projection monitor detects the center of gravity of light projection with its difference and controls the selection of a light projection scanning direction and a light emission array to calibrate a display position shift due to a unit solid-body difference. The light projection monitor performs APC over organic EL driving with its output total to perform stable display. A time, temperature, humidity, and a light projection monitor threshold are used to urge unit replacement. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device capable of enlarging and displaying characters and images like a magnifying glass, and more specifically, electronically capturing characters and image information and enlarging and displaying the acquired image information. It relates to mobile devices.

[0002]

2. Description of the Related Art Conventionally, a loupe (magnifying glass) has been used so that an object can be accurately confirmed when observing fine characters or performing fine work.

However, the magnifying power of the current loupe is constant, and it is necessary to prepare a plurality of loupes according to the object.

Recently, an image of an object (hereinafter referred to as a subject) is picked up,
There have been proposals for devices that magnify and display captured images, and in those devices, it is not necessary to carry a plurality of magnifying glasses having different magnifying ratios because the magnifying power can be set arbitrarily.

FIG. 44 is a perspective view of an electronic loupe having a grip portion disclosed in Japanese Unexamined Patent Publication No. 11-225328. In order to cover a predetermined range of the subject, the electronic loupe is placed at a certain distance from the subject and is directly faced with the subject. The image pickup unit is provided by using the image pickup unit, and the picked-up image is enlarged and displayed on the display unit provided in the grip unit.

FIG. 45 is a perspective view of a portable electronic magnifying glass disclosed in Japanese Patent Laid-Open No. 06-175590, in which a contact type two-dimensional image sensor is provided on the back surface of a flat plate body to read a subject image that is in contact with the back surface. The read image is enlarged and displayed on the front display screen.

[0007]

However, in the configuration of FIG. 44, in order to increase the photographing range of the subject, it is necessary to lengthen the facing distance between the subject and the photographing optical system, which results in an increase in size.

Therefore, it has been difficult to meet a sufficient demand as a portable device.

Further, in the structure shown in FIG. 45, although it is made compact, the contact type two-dimensional image sensor is used, so that the user cannot observe the subject at the time of photographing, which is inconvenient for positioning. Since a light source (a liquid crystal backlight here) is required for illuminating the subject, it consumes a large amount of power and is unsuitable as a portable device.

Therefore, the present invention is to provide an electronic loupe which is small in size, excellent in portability, and low in power consumption.

[0011]

In order to achieve the above-mentioned object, according to the first to fourth aspects, the optical means captures an image of a subject in a predetermined range of an extension plane in the plane direction of the optical device, and the object is provided in the optical device. The display means displays the subject image in a larger size than the subject size, and at the time of shooting, the correction optical means is provided to correct the shooting distortion caused by the angle formed by the optical axis of the optical means and the extension plane. An optical system configured such that a light beam enters from one refraction surface to the inside, is repeatedly reflected by multiple reflection surfaces, and exits from another refraction surface to the outside, and the light beam emitted from that optical system to the outside forms an image The correction optical means is composed of an image pickup optical system having a variable image pickup magnification and a scanning optical system for scanning the incident direction of a light beam entering the image pickup optical system and an image pickup optical system. The light beam is constituted by a control system for variably controlling the magnification of the imaging optical system in accordance with the scanning direction of the imaging element and the scanning optical system disposed on a surface of the imaging emitted into parts.

According to a fifth aspect of the present invention, there is provided an optical means for photographing an object plane range of a plane substantially parallel to the plane of the optical device, and a correction for correcting an imaging distortion caused by an angle formed by the optical axis of the optical means and the object plane range. The means constitutes a portable device with a photographing optical means.

According to a sixth aspect of the present invention, in the optical device having the display screen, the portable device with the photographing optical means is constituted by the optical means for photographing the plane range substantially parallel to the display image on the extension of the display screen.

According to a seventh aspect of the present invention, there is provided an optical device having a grip portion, wherein an image display surface provided on an extension of the grip portion and a photographing opening provided on the opposite surface of the image display surface on the grip side are provided. The image pickup means is substantially parallel to the image display surface, and is configured to take an image of a subject plane on the opposite side of the grip portion with the image pickup optical system sandwiched between the image pickup surface and the enlarged display on the image display surface.

According to an eighth aspect of the present invention, there is provided an optical device having a photographing opening, wherein photographing means for changing a photographing image magnification on a side near a photographing opening and a side far from the photographing opening in a photographing range, and photographing by the photographing means. The display means for enlarging and displaying the image constitutes a portable device with a photographing means.

According to a ninth aspect of the present invention, an optical device having a projection display screen is provided with optical means for photographing an extended plane area of the projection display screen.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 1 is a perspective view of a first embodiment of the present invention, and FIG. 2 is a sectional view thereof. In FIG. 1, 11 is a portable device with photographing optical means (hereinafter referred to as an electronic loupe).
Main body, 12 is a display screen which is a display means provided on the main body, 12a and 12b are scroll bars for displaying the direction in which the display contents of the display screen are scrolled, and 13a and 13b are operation units, for example, a joystick operation knob. Thirteen
In a, a predetermined display on the display screen 12 is selected and highlighted, and by pushing the operation knob 13a, the highlighted function is activated.

For example, when the operation knob 13a is pushed after the scroll bar 12a is highlighted by the operation knob 13a, the screen scrolls to the right side of the drawing.

Although not shown, a graph showing the display magnification is provided on the display screen and displayed by moving the cursor indicated by the operation knob 13a while pushing on the graph (tilting while pushing the joystick, dragging). The enlargement ratio of can be set arbitrarily.

The operation button 13b is a well-known ten-key type operation button or the like. By operating these operation buttons, characters can be displayed on the display screen or a telephone number can be input. There is.

Reference numeral 14a is a microphone, which is used for inputting voice to the speaker of the other party when using the telephone function of the electronic magnifying glass.

Reference numeral 14b is a speaker, which is used to output the voice of the speaker of the other party when the telephone function of the present electronic loupe is used.

Reference numeral 15 is a photographing range, and the main body 11 is moved and adjusted so that the object to be magnified is adjusted to this range.

In reality, this photographing range is not visible, and the photographing range is confirmed on the display screen 12 when the magnification of the display screen 12 is 1.

Reference numeral 16 shown in FIG. 2 denotes an opening window (expressed as a photographing opening in the claims) through which an object in the photographing range 15 is photographed.

Reference numeral 17 denotes an image pickup device, which forms an image of a subject in the photographing range 15 on the image pickup device 17 through the optical system 18 and makes the image electronic data.

Reference numeral 18 denotes a photographing optical system, the details of which will be described later.

Reference numeral 19 denotes a main board, which processes image data picked up by the image pickup device and displays it on the display screen 12, controls scrolling and enlargement ratio of the display screen by an instruction from the operation knob 13b, and makes a call. Control functions.

Reference numeral 110 denotes a battery, which has a call function, a display screen,
It supplies electric power for the functional operation of the image sensor.

An opening 16 provided at the tip of the main body 11
Therefore, when a subject in the shooting range 15 is photographed, the subject has a portion close to the main body 11 and a portion far from the main body 11.

For this reason, when the image is normally taken, the taken image becomes distorted image data as shown in FIG.

Of course, it is possible to correct the approximate distortion by correcting this data by known image processing, but the fact that the distortion is corrected by the image processing means that the data captured by each pixel of the image sensor is expanded. Since there are areas to be displayed, the resolution of the image is partially different.

Therefore, in the present invention, the image data after image pickup is not subjected to image processing for distortion correction, but a corrected image pickup range without distortion is obtained as shown by 111 in FIG. 3 by devising an image pickup system described later. There is.

Reference numeral 112 denotes a vibration detecting means such as an accelerometer, and the vibration detecting means detects whether the electronic loupe is placed on the subject or is being held.

As can be seen from FIGS. 1 and 2, the electronic loupe is set on the surface of the subject with its tip facing the subject so that good photographing can be performed.

Therefore, when photographing is performed while holding the electronic magnifying glass, the distance from the photographing system to the subject surface changes, so the focus changes.

By the way, when the electronic magnifying glass is placed on the subject or the like, blurring does not occur, but when the electronic magnifying glass is grasped, camera shake occurs. Therefore, by observing the signal of the vibration detecting means 112, the photographing state of the electronic magnifying glass can be confirmed. Recognize.

Therefore, by controlling the photographing focus in accordance with the signal from the vibration detecting means 112, it is possible to always obtain good photographing.

Reference numeral 113 denotes a moving mechanism provided on the bottom surface of the electronic loupe, and when the electronic loupe is placed on a subject (for example, a newspaper), the electronic loupe can be moved lightly when searching an area to be photographed on the newspaper. .

Further, this moving mechanism has a role of a mouse of a personal computer after taking a picture of a subject, and can scroll the display screen or change the magnification of the display in cooperation with the operation button 13b.

For example, when a predetermined button among the operation buttons 13b is pressed to enter the scroll mode, the screen scrolls in accordance with the moving direction of the electronic loupe and the user feels as if he or she is looking at a large screen.

Further, the enlargement ratio of the display screen can be changed by pressing another button to enter the enlargement ratio change mode and moving the electronic magnifier in a predetermined direction.

Here, an optical system for correcting distortion during photographing, such as the range 15 shown in FIG. 3, will be described.

FIG. 4 shows details of the image pickup system of the embodiment. O
Is a photographic object, and the size is A6 size. An image pickup system 1 is an off-axial optical system having a plurality of rotationally asymmetric reflection surfaces. M is a folding plane mirror for folding the optical path.

FIG. 5 is an enlarged view of the image pickup system 1. R1-R
Reference numeral 5 is a rotationally asymmetric reflecting surface, STOP is a diaphragm, F is a filter group such as a low-pass filter, and I is an image sensor such as CCD or CMOS (corresponding to the image sensor 17 in FIG. 2).

The size of the image pickup device is 2.7 × 3.6 mm. The object to be photographed is 60 with respect to the reference axis (the ray passing through the center of the object plane and the center of the diaphragm) which is the center of the optical system.
It is constructed with an inclination. In the case of an ordinary optical system, keystone distortion will occur.

This keystone distortion is rotationally asymmetrical distortion and cannot be corrected by a normal rotationally symmetric optical system.

However, it is easy to correct the keystone distortion by using a rotationally asymmetric off-axial optical system.

In FIGS. 4 and 5, the image pickup system 1 includes a plane mirror M, a concave mirror R1 and a convex mirror R in the order of passage of light rays from O.
It is composed of five reflecting surfaces, that is, a concave reflecting surface R3, a convex mirror R4, and a concave reflecting surface R5.

Here, an intermediate image is formed near the convex mirror R2.

Next, the optical function of this embodiment will be described. The light flux from O is reflected on the five reflecting surfaces one after another,
The amount of light is limited by the diaphragm, and the image sensor I passes through the filter group F.
Image on top.

As described above, by using the off-axial optical system, the distortion at the time of photographing as shown in the range 15 of FIG.
As shown in FIG. 1, it is possible to perform optical correction, and it is possible to perform high-quality shooting while correcting distortion without waste such as image quality unevenness unlike image correction.

Further, by designing a photographing system with this off-axial optical system, not only an image without distortion can be photographed, but also the whole photographing system can be downsized.

Further, by adopting the form of this optical system, FIG.
The layout of the electronic magnifier as shown in
More specifically, the optical means (the image pickup device 17, the optical means 18, the opening 16 and the like) captures an image of a subject in a predetermined range of an extension plane of the optical device (electronic magnifier) in the plane direction, and display means (display means) provided in the optical device. Correcting optical means for displaying an image of the subject in a larger size than the subject size on the screen 12) and for correcting the imaging distortion caused by the angle between the optical axis of the optical means and the extension plane during imaging (the configuration of FIGS. 4 and 5).
And the correction optical means is configured such that the light flux enters the inside from one refracting surface, is repeatedly reflected by a plurality of reflecting surfaces, and exits from another refracting surface to the outside (reflection optical system, In a narrow sense, an off-axial optical system) and a layout composed of an image sensor 17 arranged on the surface where a light beam emitted from the optical system to the outside forms an image, and a compact and high-quality object can be photographed and Since the electronic loupe does not cover the subject, external light strikes the subject, so energy for illuminating the subject is unnecessary, and the subject can be photographed while observing it.

Since the distance between the subject and the image pickup surface can be shortened, the electronic loupe can be downsized.

Further, it has optical means (image pickup device 17, optical means 18, aperture 16 and the like) for photographing a subject plane range of a plane substantially parallel to the plane of the optical device (electronic loupe), and the optical axis of the optical means. Since the portable device with the photographing optical means is constituted by the correcting means for correcting the photographing distortion caused by the angle formed by the plane range of the subject, the photographing distortion caused by miniaturization can be optically corrected.

In an optical device having a display screen,
Since the portable device with the photographing optical means is configured by the optical means for photographing the plane range substantially parallel to the display image on the extension of the display screen, the photographing subject is not covered by the electronic loupe, and the photographing subject is exposed to the external light. Therefore, the energy for illuminating the subject is unnecessary, and it is possible to shoot while observing the subject.

An optical device having a grip portion, in which an image display surface provided on the extension of the grip portion and a photographing opening provided on the opposite surface of the image display surface on the grip side are provided. And a photographing means which is substantially parallel to the image display surface and which is configured to photograph the subject plane on the opposite side of the grip part with the photographing optical system interposed therebetween and to magnify and display on the image display surface. A loupe can be realized.

Further, since the optical device having the projection display screen has the optical means for photographing the extended plane range of the projection display screen, the electronic magnifying glass which is easy to use because the display screen can be seen at the same time while observing the subject to be photographed. It was realized.

With the layout items enumerated in this way, an optical system is provided for correcting the distortion of a subject image in the plane range on the extension line of the optical device in the plane direction while confirming the subject image. We were able to realize an electronic loupe that can shoot, is compact and lightweight, and does not require a light source for lighting.

By the way, what is important when photographing a subject is the brightness and focus of the subject.

With respect to the brightness of the subject, the unique layout of the present invention allows the photographed subject to be sufficiently exposed to the external light so that the subject can be photographed brightly.

However, for focusing, the image sensor 1 is used.
Although 7 is small and the depth of field of photography is deep, the photographing distance is short. Therefore, it is necessary to perform highly accurate distance measurement and control the position of the optical system or the image pickup device.

However, since the electronic loupe shoots a subject on the subject as in the shape of FIG. 1, the position from the photographing optical system to the subject is always constant.

Therefore, if the optical system is set in advance, good focus can be obtained.

However, when the electronic loupe is taken by hand, the distance from the subject to the electronic loupe changes, so the focus position must be changed.

Therefore, there is provided a mechanism for performing focus control by determining whether the electronic loupe is placed on the subject or held.

As described above, vibration does not occur when the electronic magnifying glass is placed on a subject or the like, but camera shake occurs when the electronic magnifying glass is grasped, so the vibration detecting means 1
By observing the 12 signals, the shooting state of the electronic loupe is determined.

FIG. 6 is an internal block diagram of the electronic loupe of the present invention, in which 114 is a microcomputer mounted on the electronic loupe,
Denoted at 115 is the focus adjusting means, and the other blocks are assigned the same part numbers as the elements described with reference to FIGS.

Here, the microcomputer 114 activates the vibration detecting means 112 when taking a picture, and the vibration amplitude of the camera shake frequency of about 1 to 10 Hz is within the predetermined amplitude in the signal from the vibration detecting means 112. Sometimes it is determined that the electronic loupe is installed on the subject, and when the amplitude exceeds a predetermined value, it is determined that the electronic loupe is handheld.

When the hand is held, the focus adjusting means 11
Control 5 to change the focus position farther.

FIG. 7 shows the flowchart,
This flow starts when the main power of the electronic loupe is turned on.

First, in step # 1001, it is determined whether or not the user performs a photographing operation, and this step is cycled until the photographing operation is performed. When the photographing operation is performed, the process proceeds to step # 1002.

At step # 1002, the microcomputer 114 activates the vibration detecting means 112 and starts to analyze the signal.

Then, a signal having a frequency component of 1 to 10 Hz, which is a camera shake frequency band, is selected from the signals by using a known digital filter, and its amplitude is compared with a reference value.

When it is determined that the electronic loupe is held by hand as a result of the comparison, the step # 10 is performed.
If it is determined that the blur is small and the electronic loupe is placed on the subject, the process proceeds to step # 1004.

In step # 1003, the photographing focus position is changed. The details will be described later.

In step # 1004, photographing is performed, and this flow ends.

In this way, when the subject position changes, the focus position is changed so that good photographing can be performed.

Of course, as a method of determining whether or not the electronic loupe is held by a hand, a switch or the like is provided at the bottom of the device to determine whether or not the electronic loupe is placed on the subject, instead of using vibration detecting means such as an accelerometer. Alternatively, it may be optically judged whether or not the object is placed on the subject.

However, in the case of such a switch means, when the electronic loupe is grasped, the switch may be grasped at the same time, or the optical detection window may be covered with a finger, so that stable detection is possible. Can not.

When the vibration detecting means is used, there is an advantage that the action of gripping the electronic loupe does not affect the detection accuracy and stable handheld detection is possible.

As described above, step # 1003
Now, the focus position is changed, which will be described below.

The focus position can be actually changed by slightly changing the position of the image pickup device 17 in the optical axis direction (for example, 0.2 mm), and if the position of the image pickup device 17 is shifted by using a piezoelectric member or the like. It can be realized relatively easily.

However, in order to focus, it is necessary to adjust the position of the image pickup device 17 while measuring the object position like a compact camera or observing the contrast of the object like a video camera.

When the distance to the object position is measured, a dedicated distance measuring means is required, which increases the size of the device and increases the cost.

In the method of observing the contrast, it takes a long time to bring the image into focus, which makes it impossible to take a light image.

Therefore, in the case of the electronic loupe, the subject is shifted in high speed to continuously shoot the subject, and the best focus is obtained using them.

FIG. 8 is a flowchart thereof, and this flow goes through step # 1003 of FIG. 7 to step # 10.
Start at 04.

In step # 2001, first, the position of the image pickup device 17 is slightly changed (for example, 0.02 mm) in response to the optical axis direction using a piezoelectric member or the like.

In step # 2002, photographing is performed.

In step # 2003, step # 2003 is cycled to stand by until the exposure is completed, and when the photographing is completed, the process proceeds to step # 2004.

At step # 2004, the photographed image is displayed on the display screen 12.

In step # 2005, it is determined whether or not photographing has been performed n times (for example, three times), and when n times have been completed, this flow ends, and otherwise, step # 200.
Return to step 1 and shoot again.

At this time, the focus position is further changed (the image pickup device is further moved by 0.02 mm) to perform photographing, and the image is combined with the previously photographed image and displayed.

By doing so, the average image photographed n times is displayed, and it is possible to display an image in which the character information and the like are sufficiently readable even if the image is not exactly in focus.

As described above, this system does not require a focusing device such as a distance measuring unit, and can provide a compact electronic loupe capable of light shooting.

Next, a method of displaying on the screen will be described.

The display screen 12 enlarges and displays the subject, but the image picked up by the image pickup device 17 is visible on the display screen before the photographing.

However, if the enlarged display has already been made at this point, the photographer cannot know the photographing range.

Therefore, in the present invention, the entire image of the subject within the photographing range is displayed on the display screen 17 before the photographing until a predetermined time after the photographing, and thereafter the enlarged display is replaced.

The reason why the whole image is displayed before shooting is to display the shooting range, and the whole image is displayed even after the completion of shooting by sound is displayed to display the whole shot image.

FIG. 9 is a flow chart of the display method, and this flow starts after the photographing of the subject is completed.

At step # 3001, all the shot images are displayed on the display screen 12.

In step # 3002, the entire image is displayed for a predetermined time (for example, 2 seconds), and the process is cycled through step # 1 ¥ 3002 to wait.

After a lapse of a predetermined time, step # 3003
Proceed to.

In step # 3003, a partially enlarged display of the photographed subject is performed.

Here, the enlarged display method is that the photographed subject image is automatically scrolled from the upper left to the upper right of the screen at a predetermined speed (for example, two characters per second for character information), and when it comes to the right end, it is lowered one step next. Scroll again from the left edge to the right edge.

In step # 3004, it is determined whether or not the scrolling has ended. When the scroll of the enlarged screen comes to the right end of the photographed image, the process proceeds to step # 3005, and when the enlargement scroll of all images is not completed. Is the step #
Returning to 3003, the enlarged scroll display is continued.

Note that the scrolling direction is not limited to the above, and it is also possible to scroll from the upper right corner to the lower right corner of the shooting screen and end at the lower left corner at the end. The state of the subject may be determined and the scroll direction may be automatically selected.

Of course, as described with reference to FIG. 1, the operation knob 1
3b may be used to operate the scroll bars 12a and 12b for manual scrolling.

By displaying the entire screen in this way, the photographing range can be confirmed, and after that, the display is automatically switched to the enlarged display, so that an electronic loupe that is easy to understand and use can be obtained.

As described with reference to FIG. 2, the electronic loupe is provided with the moving mechanism 113, and the moving mechanism 113 is provided.
This makes it possible to move the electronic magnifier lightly on the subject.

However, due to the moving mechanism 113, it is conceivable that the electronic magnifying glass will be accidentally moved during the photographing operation and a blurred image is photographed.

Therefore, in the present invention, photographing is not possible when the electronic loupe is moving. Specifically, when the moving mechanism 113 detects that the electronic loupe is moving, photographing is prohibited.

FIG. 10 shows the flow chart thereof, and this flow starts when the main power of the electronic loupe is turned on.

At step # 4001, step # 4001 is cycled to stand by until a photographing operation is performed.

When a photographing operation is performed, step # 4
Proceed to 002.

In step # 4002, the state of the moving mechanism 113 is detected, and when the mouse ball, which is the moving mechanism 113 shown in FIG. 2, is rotating, it is determined that the electronic loupe is moving.

When it is determined that the vehicle is moving, step #
The process returns to 4001 and waits for another shooting operation.

At this time, if the photographer continues the photographing operation, this flow cycles through steps # 4001 and # 4002 and waits until the movement is stopped.

When the movement is eliminated in step # 4002, the flow advances to step # 4003 to perform photographing, and then this flow ends.

By using the moving mechanism 113 at the time of photographing in this way, it is possible to prevent the photographing failure in advance.

(Second Embodiment) In the first embodiment, the off-axial optical system is used to correct the distortion of the photographing screen. However, as another method, zooming is performed during photographing, so that the photographing is performed. You can also get an undistorted image.

In the first embodiment, a two-dimensional area image sensor is used as the image sensor 17 to photograph an object at one time as the photographing method. However, in the second embodiment, a one-dimensional line sensor is used to perform optical The subject image is captured by scanning the subject image.

Then, the screen distortion is corrected by changing the photographing magnification during the scanning.

That is, the photographing focal length is shortened while scanning a region close to the photographing system in the subject area, and the photographing focal length is lengthened in a far region.

FIG. 11 is a sectional view of the electronic loupe of the second embodiment, and only parts different from those in FIG. 2 will be described.

In FIG. 11, reference numeral 21 denotes a one-dimensional line sensor, and the focal length is changed by moving the zoom lens 22 provided on the front surface thereof in the direction of arrow 22a.

The mirror 23 is rotatably supported,
At the time of shooting, the mirror 23 is rotated to shoot a predetermined area of the subject.

Each time the mirror 23 scans, the one-dimensional line sensor reads the subject image and displays the image on the display screen 12.

FIG. 12 is a flowchart thereof, and this flow starts when a photographing operation is performed.

In step # 5001, the zoom lens 22
The zoom position is initialized.

The subject scanning at the time of photographing is started from the side far from the electronic magnifier.

This is because, in general, the head farther from the electronic loupe is the subject's head.

Therefore, the initialization of the zoom lens 22 is at the position where the focal length is the longest.

At step # 5002, an image of the area is taken.

In step # 5003, step # 5003 is cycled until the shooting is completed, and the process waits. When the shooting is completed, the process proceeds to step # 5004.

At step # 5004, the zoom lens 22
Change the focal length of.

Here, the focal length is shortened by a predetermined amount.

In step # 5005, the mirror 23 is rotated toward the area next to the object and the image is taken again.

Step # 5006 is step # 5003
Wait until the shooting of the subject area is completed in the same way as
Upon completion of shooting, the process proceeds to step # 5007.

In step # 5007, it is determined whether or not the entire scanning of the object has been completed. If the scanning has not been completed, the process returns to step # 5004 to shorten the focal length again by a predetermined amount and rotate the mirror 23. This flow ends when an image is captured aiming at the next subject area and the entire scanning is completed.

As described above, by using the one-dimensional line sensor, the image pickup section can be downsized and reduced in cost as compared with the case of using the two-dimensional area image sensor, and further, the zoom operation during the operation can be performed to obtain the image without distortion. It became like.

In the first embodiment, the focus is fixed when the electronic loupe is placed on the subject.

Therefore, when the subject is a three-dimensional object, it becomes out of focus due to its height.

In the second embodiment, even when the electronic loupe is placed on the subject, the focus is shifted and a plurality of images are taken in the same manner as in the case of holding the electronic loupe in the first embodiment.

Then, by checking the contrast of the picked-up image, it is determined which of the plurality of picked-up images having different focuses is in the best focus, and the image is displayed on the display screen.

Further, during the enlarged scroll display, the most focused photographic image in the displayed area is selected and displayed from a plurality of out-of-focus images.

Therefore, even in the case of a three-dimensional object, it is possible to see an in-focus image in that area at the time of partial enlargement.

FIG. 3 is a flow chart for explaining it, and this flow starts with the photographing operation.

In step # 6001, the focus position is slightly shifted.

In step # 6002, photographing is performed.

At step # 6003, steps # 6003 and # 6004 are cycled until the entire photographing is completed.

In this portion, as described in FIG. 12, the photographing focal length is changed, the scanning direction is changed, and the image is picked up.

Then, at the end of all scanning of the object, step # 60.
Go to 04.

In step # 6004, it is determined whether or not the focus has been changed n times (for example, 3 times). If not, the process returns to step # 6001 to slightly shift the focus, perform photographing scanning again, and change the focus n times. Step # on exit
Proceed to 6005.

At step # 6005, the area to be displayed at present is detected.

In the first embodiment, this is the subject area currently being scrolled, and the scroll bar 12a,
It is the area selected by the 12b operation.

In step # 6006, the image data in which the currently selected region is in focus most out of a plurality of images photographed while changing the focus is selected by looking at the contrast of the image, for example.

In step # 6007, the image is displayed on the display screen, and this flow ends.

With such a configuration, it is possible to display a good image in focus even when a subject having irregularities is enlarged.

Further, in the first embodiment, when the display is performed, the entire screen is displayed first and then the partial enlarged screen is changed at a predetermined time. However, in the second embodiment, until the observer operates. Is configured to continue operating the entire screen.

FIG. 14 is a flowchart thereof, and this flow starts when an image is displayed on the screen.

At step # 7001, the full screen of the photographed image is displayed.

In step # 7002, step # 7002 is cycled to wait until the observer performs a magnifying operation.

When the enlargement operation is performed, step # 7.
Proceed to 003.

In step # 7003, the area selected by the moving mechanism described later is enlarged and displayed.

Of course, as described with reference to FIG. 13, at this time, the most focused image among the plurality of photographed images that are out of focus is selected and displayed.

At step # 7004, the process waits until the scroll scanning operation is completed.

When the scroll operation is not performed for a predetermined time (for example, 4 seconds), it is judged that the scroll scanning is completed and the process proceeds to step # 7005. If not, the process returns to step # 7003 and the enlarged display is continued again.

At step # 7005, it is determined that the scrolling is stopped, and the display returns to the full-screen display, and this flow ends.

As described above, the full-screen display is performed until the observer performs an operation, and the region selected by the observer is displayed even in the enlarged display, so that an easy-to-use electronic magnifier that complies with the observer's intention can be obtained.

As the image scroll operation method for the observer, the moving mechanism 113 is used. When the moving mechanism scroll mode is selected (the button is pressed) among the operation buttons 13a, the electronic loupe is moved by moving the electronic loupe back and forth and left and right on the desk. The mechanism 113 detects the direction and the amount, and enlarges and displays the area corresponding to the direction and the amount.

For example, when the electronic loupe is moved to the right, the right side of the image on the screen becomes visible according to the amount of movement.

FIG. 15 is a flowchart thereof, and this flow starts when the moving mechanism scroll mode is selected (the button is pressed) in the operation button 13a.

As described with reference to FIG. 14, the entire photographed image is initially displayed, but when this moving mechanism scroll mode is selected (the button is pressed), the central portion of the photographed image is enlarged and displayed.

At step # 8001, the process is cycled through step # 8001 and waits until movement is detected.

At step # 8002, the rolling direction and amount of the moving mechanism 113 are detected.

In step # 8003, step # 800
The display area corresponding to the rolling direction and amount of the second moving mechanism 113 is selected and displayed on the display screen 12, and this flow ends.

Thus, by scrolling the screen using the moving mechanism, it is possible to realize screen scrolling that is intuitive to understand.

(Third Embodiment) In the first and second embodiments, the photographed subject image is displayed on the display screen 12, and when the photographed image is enlarged, only a part of the photographed image is enlarged.

This is because the size of the display screen 12 is limited. If the display screen is large, the entire photographed image can be enlarged and displayed, and the user can immediately see the area to be enlarged. So convenient.

However, if the display screen is enlarged in this way, the device itself becomes large, and the portability becomes poor.

The third embodiment of the present invention is also an example of solving the problem, and not only the display of the photographed image is displayed on the display screen, but also the image is projected and displayed on the enlarged screen.

That is, by using a large screen such as a flat portion (for example, a white table cloth) on the spot and enlarging and displaying the entire photographed image, the user can easily see the desired information. .

FIG. 16 is a perspective view when the display screen of the third embodiment of the present invention is used, FIG. 17 is a side view thereof, FIG. 18 is a perspective view when the electronic magnifier is folded, and FIG. 19 is a photographed image. 20 is a perspective view of the form of the electronic loupe at the time of projecting, FIG. 20 is a side view at the time of projecting, FIG. 21 is a sectional view at the time of projecting, and FIG. 22 is a sectional view at the time of folding.

In the above figures, 31 is the main body of the electronic loupe, 32 is the lid of the electronic loupe, and 33 is the display screen 1 of FIG.
A display screen similar to that of 2 is a state in which the lid 32 is raised from the main body 31 (when the folded state of FIG. 18 is changed to the state of FIG. 16) and the state in which the main body 31 is housed functions as a projection optical system An optical storage unit that extends to the position, 34a is the storage direction, 34b is a light emitting unit replacement lid for projecting an image through the projection optical system, 34c is the lid opening and closing direction,
Reference numeral 4d denotes lid opening / closing detecting means for detecting whether the lid is opened. This is provided to stop the light emission to the internal light emitting unit when the lid is opened and protect the light emitting unit. There is.

Reference numeral 35 denotes a projection unit which plays a role of reflecting the light emitted from the light emitting unit in the optical storage unit and returning it to the optical storage unit 34 side again, and the returned light is mirrored from the optical storage unit 34 light emitting unit. It is projected toward 39.

The reference numeral 35a designates the storage direction of the optical storage unit 3
As in the case of 4, the projection unit 35 is also housed in the main body 31 when the lid unit 32 is closed.

Reference numeral 36 denotes a hinge, which supports the main body 31 and the lid portion 32 by two links of a first shaft 36a and a second shaft 36b.

Therefore, the lid portion 32 is firstly attached to the main body 31.
Not only can it stand up about the shaft 36a, but it can rotate about the second shaft 36b in that state.

A rotation angle detection switch 36c is provided inside the lid 32 near the first shaft 36a to detect the relative rotation angle between the hinge 36 and the lid 32.

By detecting this angle, for example, when the angle of the lid is as shown in FIG. 16, the operation of the light projecting means is stopped and only the display screen 33 is operated to save electric power.
In the case of an angle such as 9, the projection means is also operated to display the screen 3
I can see both 3 and the projected image.

At this time, the magnification of the display screen is set to be larger than that of the projected image so that the image can be observed in more detail.

Of course, when projecting an image as shown in FIG. 19, the operation of the display screen can be stopped to save power.

Reference numeral 37 denotes an operation portion, which plays the same role as the operation button 13a shown in FIG.

38 is a taking lens provided on the back surface of the lid 32, 38a is a taking optical axis thereof, 38b is a taking lower limit thereof,
38c is the upper limit of the photographing, and is shown in order to make the explanation easy to understand, but it is not actually visible.

Reference numeral 39 denotes a mirror provided on the back surface of the lid portion 32, 39a denotes a photographing lower limit when the mirror 39 reflects light projected from a projection optical system, the details of which will be described later, and 39b denotes a photographing upper limit thereof. Is also shown to make the explanation easier to understand, but it is not actually visible.

Reference numeral 310 denotes a photographing range in which a subject can be photographed, 3
Reference numeral 11 is a projection range when a captured image is projected using a projection optical system, 312 is a screen surface, and a subject is also usually placed on this screen surface, and 313 is a line of an organic EL or the like that constitutes a light emitting unit. The light projecting elements 314 are condensing elements (beads) that play the role of a lens for condensing the light projected by the line light projecting elements, and one light projecting element is provided on each light projecting element arranged in a line. . Reference numeral 315 denotes a scanning mirror. Numeral 315a denotes a scanning mirror driving means for directing light projection to a desired direction by scanning the mirror with an actuator (not shown) at a frequency of, for example, about 2 KHz.
For example, the permanent magnet provided on the back surface of the scanning mirror 315 and the coil of the scanning mirror driving means 315a electromagnetically actuate the mirror at its natural frequency (for example, 2 KHz).

Reference numeral 316a denotes a first free-form curved reflecting mirror, and the light projected from the line projecting element is incident on the first free-form curved reflecting mirror 316a after being scanned by the mirror 315 in the light projecting direction.

The light projected by the first free-form curved reflecting mirror 316a enters the second free-form curved reflecting mirror 316b.

The light projected by the second free-form curved reflecting mirror 316b enters the third free-form curved reflecting mirror 316c.

The light projected by the third free-form curved reflecting mirror 316c enters the fourth free-form curved reflecting mirror 316d.

The light projected by the fourth free-form curved reflecting mirror 316d is guided to the mirror 39, and is reflected by the mirror 39 to display an image on the screen surface 312.

Here, the second free-form curved mirror 316a and the third
A mirror 315 drive monitor 319 is provided between the free-form curved reflecting mirrors 316c.

This is so that a predetermined part of one side of the projection plane formed by scanning the mirror 315 is not vignetted by the drive monitor 319 and does not reach the third free-form surface 316c.
A known light receiving element such as PSD is used as the drive monitor 319, and receives a predetermined amount of light on one side of the projection plane described above.

Therefore, the center of gravity of the light received by the light receiving element is detected (in the case of PSD, the difference between the outputs of the terminals is taken).
This allows you to know whether the scanning position of the mirror is proper.

[0209] Further, since the light emission amount side can be determined by detecting the total light reception amount of the light receiving element (added output of each terminal in the case of PSD), for example, the current applied to the light emitting element is controlled based on the detected output. As a result, APC (auto power control) is performed, and stable light emission can be performed without unevenness.

The electronic loupe of the third embodiment is characterized in that not only the enlarged display of the photographed image can be seen on the display screen 33 as in the first and second embodiments, but also the enlarged photographing by using the projection function. You can see the whole image and it is easy to observe.

In order to realize this, the lid portion 32 has a hinge structure with two links, and the lid portion 3 not only functions as a display screen, but also as a reflecting mirror at the time of projection so that the projection direction can be controlled. .

As described above, the predetermined range (310) of the extension plane in the plane direction of the optical device is provided by the optical means (photographing lens 38).
The subject is photographed, and projection means (line light projecting element 313, mirror 315, first, second, third, and fourth free-form curved surface reflecting mirrors 316a, 316 provided in an optical device (electronic magnifying glass).
b, 316c, 316d, the mirror 39, etc.), the object image photographed on the surface (312) on which the object is located is displayed in a larger size than the object size, and the projection image is a surface on which the object is located. Since the image is projected adjacent to the object photographing range 310 (projection surface 311), the enlarged projection image can be viewed without keeping a large eye from the object surface.

Further, an optical system (first, first) in which the optical means is constructed so that the light flux enters the inside through one refracting surface, is repeatedly reflected by a plurality of reflecting surfaces, and exits through another refracting surface. 2, 3rd and 4th free-form curved mirrors 316a, 316
b, 316c, 316d) and an image pickup element arranged on the surface on which the light flux emitted from the optical system to the outside forms an image, and a projection optical system using such an off-axial optical system causes projection. Even when the image is projected on the screen near the optical system, it is possible to project the image without distortion.

Further, in the optical device (electronic magnifying glass) having the photographing means (photographing lens 38), an enlarged image of the photographed subject is projected in a predetermined range 311 on the extension of the subject photographed by the photographing means. The movement direction of the line of sight is natural, and it is possible to make the configuration easy to see.

Further, the opening / closing lid portion (lid portion 3 for protecting the operation portion is
2) and a projection means for projecting an image (line projection element 31
3, a mirror 315, a first, a second, a third, and a fourth free-form curved reflecting mirrors 316a, 316b, 316c, 316d), and a lid for reflecting light projected from the projection means. The projection direction can be controlled by setting the lid part at a plurality of opening / closing angles by means of a hinge 36 of a two-link shaft support with respect to the main body 31, which has a means (mirror 39), thereby making the portable device compact. Now that you can do it, you can freely control the direction you want to project.

Then, the opening / closing lid portion (lid portion 32) for protecting the operation portion and the projection means (line projecting element 31) for projecting an image.
3, a mirror 315, a first, a second, a third, and a fourth free-form curved reflecting mirrors 316a, 316b, 316c, 316d), and a lid for reflecting light projected from the projection means. Means (mirror 39) and display means (display screen 33) for displaying an image, and whether the image is projected by the projection means or displayed on the display means according to the opening / closing angle of the lid part with respect to the main body. Since the display is switched, it is possible to easily switch between using the display means and the projection means.

Further, an opening / closing lid portion (lid portion 3 for protecting the operation portion is provided.
2) and a projection means line projecting element 313 for projecting an image,
A portable device (electronic magnifying glass) having a mirror 315, first, second, third, and fourth free-form surface reflecting mirrors 316a, 316b, 316c, 316d, which is rotatably supported by a main body 31. Biaxial 36a) arm part (hinge 36)
The orientation of the lid can be freely changed with respect to the main body by rotatably supporting the lid (first shaft 36a) on the extension of the , You can now project the image to the desired place.

In the above structure, the line projecting element 31
It was described that organic EL was used as 3.

The organic EL has the characteristics that it has a bright display, is thin, and saves power.

Further, in the present invention, the light emitting unit constituted by the line light projecting element 313 is made replaceable, so that stable light projection can be always performed.

FIG. 23, FIG. 24, and FIG. 25 are cross-sectional views of the line projecting element 313 which is unitized, and 313a, 313.
3b is a contact with the main body 31 side, 313c is a unit package, 313d is a transparent substrate such as glass, 313e is a transparent base material such as quartz, 313f is a translucent anode made of indium oxide or the like, and 313g is an organic EL. Organic hole transport layer 313h is an organic light emitting layer which is an organic EL structure medium, 313i is an organic electron transport layer which is an organic EL structure medium, 313j is an electron injection layer, 313k is a light reflective cathode, and 313l is Drive circuit and controller,
Reference numeral 314 is a light collecting bead.

Since the light-condensing beads 314 have strict positioning accuracy with respect to the organic EL, they are separated from each other. For example, when the light-condensing beads are fixed to the main body side and only the organic EL is exchanged as a unit, it is necessary to replace them. It becomes very difficult to match the phases of both.

Therefore, the condensing beads 314 are the same unit as the organic EL.

The drive circuit and its controller 313
l is also the same unit as the organic EL.

This is because when the main body pulls out the projection control terminal (power supply terminal) from each projection element of the line projection element, the number of terminals becomes very large, the unit becomes large and the contact reliability of the terminal is high. Performance is also a problem, so the controller that controls each light emitting element and the drive circuit of the light emitting element are integrated into a single unit, and the light emitting unit functions by connecting only the signal control terminal and the power supply terminal to the main unit. I am able to do it.

FIG. 26 is a side view of the base portion on the main body side to which the light emitting unit is attached. 317 is a housing, 31
Reference numeral 7a is a first positioning portion, and the bottom of the light emitting unit 313 is abutted against the first positioning portion 7a to set the position in the depth direction (optical axis direction).

Reference numeral 317b is a second positioning portion, and the terminal portion of the light emitting unit 313 is butted against the light emitting unit 31.
The position of 3 in the plane direction is determined.

Reference numeral 317c is a holding portion, which is the housing 31.
The light emitting unit 313 is abutted toward the first positioning portion due to the elasticity of the bending portion 317d of No. 7.

Reference numeral 317e is a pin, and a tension spring 318e is hooked between the pin 318c on the lock claw 318.

The lock pawl 318 has a first pressing portion 318a.
Is provided, and the light emitting unit 313 is connected to the first positioning portion 31 in association with the bending portion 318b of the lock claw 318.
It abuts in the 7a direction.

The lock claw 318 is rotatably supported by the housing 317 by a hinge 318d, and is urged to rotate counterclockwise in the drawing by the action of a tension spring 318e.

Therefore, the second pressing portion 318c provided on the lock claw 318 abuts the light emitting unit 313 in the direction of the second positioning portion 317b.

With these configurations, the light emitting unit 313 is accurately positioned in the optical axis direction and the direction perpendicular to the optical axis.

As can be seen from FIG. 25 and the like, the light emitting unit 313 has a rectangular parallelepiped shape.

The method of positioning in the longitudinal direction is not explained in FIG.

Also in this longitudinal direction, one end face is similarly positioned and the other end face is elastically biased for positioning.

However, the above-mentioned positioning is the positioning between the unit package and the main body, and the unit package 313
The positioning accuracy of the unit package in c and the light emitting element is not guaranteed.

Therefore, when the light emitting unit 313 is replaced, an attachment position error may occur due to a difference in individual light emitting units. Countermeasures for the error will be described later.

With this structure, the light emitting unit 313 using the organic EL can be easily replaced by the user himself, so that a stable projected image can always be viewed.

When replacing the light emitting unit 313, the light emitting unit replacement lid 34b is opened to start the replacement. At this time, the lid opening / closing detecting means 34d detects that the lid is open, and at this time, the light emitting unit 313 is being driven. If there is, the drive is immediately stopped and the main power supply of the entire electronic loupe is turned off to prepare for the removal of the light emitting unit for replacement.

This is to prevent the light emitting unit from being destroyed by noise when the light emitting unit is removed, and to prevent a sudden drive current from flowing when a new light emitting unit is attached.

Even if the light emitting unit replacement cover 34b is closed, the driving of the light emitting unit is not restarted. At this time, the electronic loupe is restarted by turning on the main power source (not shown) of the electronic loupe. , It prevents the light emitting unit from being left with the power on after replacement.

Even with the above configuration, the user can set the light emitting unit 3
The light emitting unit cannot be maintained in a good state unless the deterioration state of 13 is recognized and the replacement is actively performed.

Therefore, in the present invention, the configuration is such that the replacement of the light emitting unit is notified.

FIG. 27 is an internal block diagram of the third embodiment of the present invention. Reference numerals 17 and 18 denote image pickup means provided in the back of the taking lens 38 of the lid 32, and send the image pickup data to the microcomputer 114.

Reference numeral 112 denotes a vibration detecting means provided in the main body 31, which sends a vibration state to the microcomputer 114.
4 determines whether the electronic loupe is on hand or on the desk based on the state.

Reference numeral 113 denotes a moving means provided on the bottom surface of the main body 31. The moving state is sent to the microcomputer 114, and the screen of the display screen 33 is scrolled as in the second embodiment according to the moving state as will be described later, and the projected image is displayed. Change the magnification of.

Reference numeral 114 is a microcomputer which controls the electronic magnifying glass.

Reference numeral 115 is a focus adjusting means for controlling the position of the image pickup device 17 in the optical axis direction in the image pickup means.
When the electronic magnifier is handheld by the command from 4, the position of the image pickup device 17 in the optical axis direction is changed to take a plurality of images.

A display screen 33 displays a photographed image in response to a signal from the microcomputer.

Reference numeral 34d denotes a lid opening / closing means which sends a signal to the microcomputer 114 when the light emitting unit replacement lid 34b is opened.

Reference numeral 37 is an operating means, which is used for shooting operation, screen operation, and other operations such as a call function, and outputs the operation state to the microcomputer 114.

Reference numeral 313l denotes a light emitting element control circuit, which scans the image data for projecting the amount of light emitted to each element of the line light projecting element in the light emitting unit 313 at the time of projection.
The microcomputer 114 determines from the position of a and the brightness of external light, etc., and controls the light emitting unit 313 according to the command.

Reference numeral 315a is a scanning mirror, and the microcomputer 1
The projection direction is scanned in accordance with the command from 14. Although an example of scanning the light projecting direction according to the designation of the microcomputer 114 is shown here, the invention is not limited to this. For example, the scanning mirror scans the light projecting direction substantially independently of the microcomputer 114, and The scanning direction may be sensed (for example, the mirror monitor 319), and the microcomputer 114 may control the operation of the light emitting element control circuit based on the state.

Reference numeral 319 denotes a mirror monitor which, as described above, uses a light receiving element such as a PSD to detect the accuracy in the scanning direction by the difference output, detects the light projection amount by the total light amount, and sends them to the microcomputer 114 for light emission. It controls the amount of current flowing through the unit.

Reference numeral 320 denotes a timer, which is a light emitting unit 31.
The timer count is started after 3 is exchanged, and the elapsed time is sent to the microcomputer 114.

Reference numeral 321 denotes a temperature / humidity detecting means, which measures the unit temperature and ambient humidity when the light emitting unit 313 is used and outputs it to the microcomputer 114.

This is because the life of the light emitting unit is determined by the usage time, the applied current, the temperature and the humidity, which is necessary for calculating the life of the light emitting unit.

FIG. 28 is a flow chart for making it easy for the user to understand the replacement timing of the light emitting unit. This flow chart starts when the operation of the light emitting unit is started.

At step # 9001, the elapsed time of the timer 320 is detected, and step # 900 is performed until a predetermined time (for example, 400 hours) has elapsed since the replacement of the light emitting unit.
1 is circulated to stand by, and after a lapse of a predetermined time, the process proceeds to step # 9002.

Here, since the replacement timing of the timer 320 changes depending on the conditions (applied current, unit temperature, ambient humidity) in which the light emitting unit 313 has been used so far, it may change depending on the usage of the light emitting unit (for example, ambient temperature). is there.

At step # 9002, exchange display is performed.

This is to display a character or the like prompting replacement of the light emitting unit 313 on a part of the projected image. For example, after being displayed for 5 seconds, the display blinks for 5 seconds and then goes out, and is always turned on. The display is not continued so that the user's viewing is not disturbed.

In step # 9003, the light emitting unit 31
The current applied to 3 is reduced and the amount of light emission is reduced.

This extends the life of the light emitting unit by reducing the light emission amount, and allows the user to appreciate the photographed image for a long time, and this flow ends.

By taking these steps, the user is prompted to replace the light emitting unit so that the projected image can always be viewed in good condition, and the amount of light emitted can be changed even if the replacement work cannot be performed. The life of the light emitting unit is extended by lowering.

As described above, the light emitting unit is prevented from operating when it is replaced to prevent an accident. FIG. 29 is a flowchart showing the operation. This flow starts when the light emitting unit starts operating. Then, the operation ends.

Step # 10001 is lid opening / closing detecting means 3
4d is detected and the light emitting unit replacement lid 34b is opened, and the process waits by repeating step # 10001.
When the light emitting unit replacement lid 34b is opened, step # 10 is performed.
Proceed to 002.

In step # 10002, not only the current is applied to the light emitting unit, but also the main power source of the electronic loupe is turned off, and this flow ends.

In this way, the light emitting unit is prevented from being destroyed by noise or rush current when the light emitting unit is replaced.

As described above, since a mounting position error may occur when the light emitting unit is replaced, it is necessary to correct the position error after the light emitting unit is replaced.

FIG. 30 is a flow chart for explaining the correction operation, and this flow starts when the light emitting unit starts its operation.

In step # 11001, it is determined whether or not the light emitting unit has been replaced. If the projection operation is the first time after replacement, the process proceeds to step # 11002, and if not, the process repeats step # 11001 and waits.

At step # 11002, the calibration mode is entered.

Here, projection of a predetermined pattern (for example, frame display showing the projection range) is performed.

At step # 11003, the observer observes the above-mentioned predetermined pattern, and when the position is shifted downward in the projection plane, the observer performs an operation of shifting the screen upward, and in that case, the process proceeds to step # 11004. move on.

If there is no operation, step # 1100
Go to 5.

At step # 11004, the scanning mirror driving means 315a is controlled to offset the scanning center of the scanning mirror 315 in the plus direction by a predetermined amount.

If the observer confirms that the screen is within the proper range in step # 11007 and performs the calibration end operation, this flow is terminated, and if not, step # 110
Return to 03.

At step # 11005, the observer discriminates an operation for shifting the position of the projection screen in the downward direction. When the operation is performed, the procedure proceeds to step # 11006, and otherwise, the procedure proceeds to step # 11007. .

At step # 11006, the scanning mirror driving means 315a is controlled to offset the scanning center of the scanning mirror 315 in the minus direction by a predetermined amount.

By the above operation, the position error of the light emitting unit in the vertical direction (in FIG. 26, the direction perpendicular to the optical axis direction of the light emitting unit 313 and in the plane of the paper) is absorbed by the offset of the scanning position of the mirror.

With respect to the positional deviation in the vertical direction of the paper surface of FIG. 26, a sufficient amount of light-projecting elements is provided at both ends of the light-projecting elements arranged in the light-emitting unit, and the observer performs a predetermined pattern in the same manner as in the flow of FIG. While observing the projected image of, the projection area is set by setting which projection element is to be the center of the image to be displayed from among the entire projection elements, and the position error after replacement of the light emitting unit is interpolated. There is.

In this way, the plurality of light emitting elements (313e, 3e, 3e
13f, 313g, 313h, 313i, 313j, 3
13k organic EL), light-collecting beads 314 arranged on the surface of each light-emitting element to collect light emitted from the light-emitting element, drive circuit for driving each light-emitting element, and control circuit (controller) 313l. An element unit 313,
Projection optical system (315, 316a, 316b, 316c,
316d) and is provided on the optical path of the projection optical system,
By adopting a structure having a holding means (housing 317 or the like) for detachably holding the optical path light emitting element unit, a highly accurate and small light emitting unit can be provided, and stable projection can be always performed, and the projection can be performed. The optical optical system is an off-axis optical system that repeatedly projects the light beam from the light-emitting element unit on a plurality of reflective optical units having free-form surfaces to project an image on the projection unit. No projection is possible. The light emitting element unit has an elapsed time setting means (timer 320) for determining the elapsed time of use of the light emitting element. When the use time of the light emitting element exceeds a predetermined time, the drive circuit performs predetermined control to emit light. In order to extend the life of the light emitting element, specifically, when the usage time of the light emitting element exceeds a predetermined time, the drive circuit reduces the drive power of the light emitting element to extend the life of the light emitting element unit. There is.

[0285] Further, the light emitting means (light emitting unit 313),
Usage time measuring means (timer 320) for measuring the elapsed time of use of the light emitting means, usage condition measuring means (such as temperature and humidity detecting means 321) for measuring usage conditions of the light emitting means, usage time measuring means and usage condition measuring means Life calculation means (microcomputer 114) for calculating the life of the light emitting means based on the output of
And a life display means (microcomputer 114, step # 9002) for displaying the life of the light emitting means before the light emitting means reaches the life calculated by the life calculating means,
The use condition measuring means measures the use condition of the light emitting means based on at least the temperature condition, the humidity condition, or the power condition when the light emitting means is used, so that the condition of the light emitting unit can be accurately detected and the life of the light emitting unit can be measured. The light emitting unit can be replaced in advance, and stable projection can always be performed.

Summarizing the above items, the light emitting means (light emitting unit 313), the use time measuring means (timer 320) for measuring the elapsed time of use of the light emitting means, and the use condition measuring means (temperature) for measuring the use condition of the light emitting means. Humidity detecting means 32
1), a life calculating means (microcomputer 114) for calculating the life of the light emitting means based on the outputs of the use time measuring means and the use condition measuring means, and the light emitting means when the light emitting means reaches the life calculated by the life calculating means. A light emission amount control means (microcomputer 114, step # 9003) for reducing the light emission amount of the light emitting means is provided, and the use condition measuring means is configured to operate the light emitting means based on at least a temperature condition, a humidity condition, or a power condition when the light emitting device is used. The configuration is such that the usage conditions are measured to indicate the replacement of the light emitting unit and prolong the service life.

Then, the light emitting element (light emitting unit 313)
And the projection optical system (315, 316a, 316b, 316
c) and 316d), holding means (housing 317) provided on the optical path of the projection optical system for detachably holding the optical path light emitting element unit, and attachment / detachment detecting means for detecting attachment / detachment of the light emitting element to / from the holding means. (Lid open / closed detection means 34
d), projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and projection direction calibration means for operating the projection direction control means based on the output of the attachment / detachment detection means (flow chart in FIG. 30). ) And the projection direction control means has a reflection optical system (scanning mirror 315) that vibrates at a predetermined amplitude and frequency, and the reflection optical system scans the projection of the light emitting element light emitting element to form an image. When the light emitting unit is replaced, the attachment / detachment detection means offsets the vibration direction of the reflection optical system when the attachment / detachment detecting means detects the replacement of the light emitting element, thereby compensating for a mounting position error in the light emitting element. The deviation of the light emitting direction due to the individual difference of the light emitting unit is complemented so that stable projection can be always performed.

Alternatively, the light emitting element (light emitting unit 313)
Is a plurality of light emitting element arrays (313e, 313f, 313g,
313h, 313i, 313j, and 313k), a projection element array in a predetermined area among a plurality of projection element arrays is operated for image display at the time of projection (line projection element). Both ends of the image are used for the image monitor but not for image projection), and when the attachment / detachment detecting means (lid opening / closing detecting means 34d) detects the replacement of the light emitting elements, the image is displayed in the plurality of light emitting element rows. By changing the area that operates for display, the mounting position error is complemented by the light emitting element so that stable projection can always be performed.

Further, a light emitting element (light emitting unit 313),
Projection optical system (315, 316a, 316b, 316c,
316d) and is provided on the optical path of the projection optical system,
Holding means (housing 317) for detachably holding the optical path light emitting element unit, and attachment / detachment detection means (lid opening / closing detection means 34d) for detecting attachment / detachment of the light emitting element to / from the holding means.
, A projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and a display for prompting the operation of the projection direction control means based on the output of the attachment / detachment detection means (step # 1100).
2) is configured so that stable projection display can always be performed.

Also in the third embodiment, the moving mechanism 113 is provided on the bottom surface of the main body 31, and the magnifying power of the photographed image is changed by changing the projection range by the moving mechanism.

In the first and second embodiments, the enlargement ratio is changed by electrically controlling the display contents of the display screen, but in the third embodiment, the position of the projection optical system is shifted. The size of the projection range 311 is changed accordingly.

FIG. 31 shows the flow chart thereof, and this flow starts when the operation of the moving mechanism 113 is detected.

In step # 12001, it is determined whether or not projection is being performed. If projection is in progress, step # 12002 is proceeded to. If not so, step # 12001 is cycled to stand by.

At step # 12002, it is judged whether or not the movement is forward movement, and if it is forward movement, the routine proceeds to step # 12004. If not, the routine proceeds to step # 12003.

At step # 12003, it is determined whether or not the vehicle is moving backward, and if the vehicle is moving backward, the procedure proceeds to step # 12005. If not, the procedure returns to step # 12001.

In step # 12004, the display area is set to 1.
The projection optical system is moved so as to double the magnification.

In step # 12005, the display area is set to 0.
The projection optical system is moved so that it is multiplied by 8.

Since the projection area changes in accordance with the amount of movement as described above, the operation of changing the enlargement ratio is easy to perform, and the projection area can be freely changed according to the size of the screen surface 312, so that the electronic magnifying glass is easy to use. Was realized.

(Fourth Embodiment) In the third embodiment, the lid 32 is provided with a display screen such as a liquid crystal, and the rear surface mirror 39 of the lid 32 is used for projection display.

In the fourth embodiment, a screen is also provided on the surface side of the lid portion 32, and the display screen such as liquid crystal is omitted, so that the lid portion 32 is made thin.

FIG. 32 is a perspective view of the fourth embodiment of the present invention,
FIG. 33 is a sectional view thereof, and in these drawings, 41 is not a display screen such as liquid crystal as in FIG. 16 of the third embodiment, but a screen having directivity on the front surface.

Then, the projection image from the free-form curved reflecting mirror 316d in the optical housing 34 is projected on the screen 41.

Since the screen 312 and the screen 41 of the third embodiment are different in distance and angle from the projection optical system, the projection angle and the focus are adjusted by the configuration shown below.

In FIG. 33, reference numeral 322 denotes a projection angle adjusting means, which changes the angle of the third free-form curved reflecting mirror 316c to direct the reflected light of the fourth free-form curved reflecting mirror 316d to the mirror 39 or the screen 41. Lead.

Here, the angle of the lid 32 with respect to the main body 31 is detected by the rotation angle detecting switch 36c described in the third embodiment, and the projection angle adjusting means 322 correspondingly detects the angle of the third free-form curved reflecting mirror 316c. The projection direction is selected by rotating in the 322a direction.

Reference numeral 323 is a focus adjusting means, which is the second
The free-form surface reflecting mirror 316b is moved in the direction of the arrow 323a to adjust the focus, thereby correcting the focus change between when the light is projected on the screen 41 and when it is reflected by the mirror 39.

This focus adjusting means is also interlocked with the rotation angle detecting switch 36c.

Therefore, if the viewer sets the rotation angle of the lid 32, the screen 41 or the screen 31 is automatically displayed.
The projected image in focus on 2 will be displayed.

FIG. 34 is a flowchart thereof, and this flow starts at the start of projection operation.

In step # 13001, it is detected whether or not the rotation angle detection switch 36c detects the rotation of the lid portion 32. Specifically, when the position of FIG. 32 changes to the position of FIG. 19, the process proceeds to step # 13002, When nothing changes, the process waits by circulating step # 13001, and when the rotation angle is any other, projection is stopped.

[0311] The projection is stopped because the angle of the lid portion 32 with respect to the main body is improper, and the screen 41 and the screen 3 are stopped.
This is because the image cannot be projected on 12.

In step # 13002, the focus adjusting means 323 is driven to move the second free-form curved reflecting mirror 316b so that the screen 312 is in focus.

At step # 13003, the projection angle adjusting means 322 is driven to drive the projection range 311 of the screen 312.
The third free-form curved reflecting mirror 316c is rotated so that the projection area coincides with (FIG. 19), and the process returns to step # 13001.

With the above structure, the viewer can project a high-quality image in a desired direction simply by changing the angle of the lid 32.

In the third embodiment, replacement of the light emitting unit is determined by the operating temperature, humidity, driving current and operating time.

In the fourth embodiment, the light emitting state of the light emitting element is detected to judge the replacement time of the light emitting unit and display it.

The detection of the light emission state uses the mirror monitor 319 described in the third embodiment.

As described above, the mirror monitor 319 receives a part of the projected light, detects the light emitting state by the sum of the received light amount, and when the light emitting amount is small, the drive current of the light emitting unit is raised to raise the light emitting amount. Auto power control to keep constant.

However, when a sufficient amount of light cannot be obtained even when the applied drive current reaches a predetermined amount, it is determined that the light emitting unit has reached the end of its life.

FIG. 35 shows the flow chart thereof, and this flow starts at the start of projection.

Step # 14001 detects the light quantity variation of the light emitting unit as described above, and when sufficient brightness cannot be obtained even when a predetermined drive current is applied, step # 14
If not, the process proceeds to step # 14001 and waits.

In step # 14002, exchange display is performed.

This is to display a character or the like prompting replacement of the light emitting unit 313 on a part of the projected image. For example, after being displayed for 5 seconds, the display blinks for 5 seconds and then goes out. The display is not continued so that the user's viewing is not disturbed.

In step # 14003, the light emitting unit 3
The current applied to 13 is reduced to reduce the amount of light emission.

This is to extend the life of the light emitting unit by reducing the amount of light emission so that the user can appreciate the photographed image for a long time, and this flow ends.

By taking these steps, the user is urged to replace the light emitting unit so that the projected image can always be viewed in a good condition, and the light emission amount can be adjusted even if the replacement work cannot be performed. The life of the light emitting unit is extended by lowering.

In the third embodiment, the viewer himself adjusts the position after replacing the light emitting unit.

In the fourth embodiment, the mirror monitor 319 is capable of automatically correcting the positional deviation by utilizing the fact that the deviation of the projected position can be detected.

FIG. 36 is a flow chart for explaining the correction operation, and this flow starts when the light emitting unit starts its operation.

In step # 15001, it is determined whether or not the light emitting unit has been replaced. If the projection operation is the first time after replacement, the process proceeds to step # 15002, and if not, the process repeats step # 15001 and waits.

At step # 15002, the calibration mode is entered.

Here, projection of a predetermined pattern (eg, lattice pattern) is performed.

In step # 15003, the mirror monitor 3
The change in the projection direction caused by the position error due to the change in the light amount of 19 is detected.

When PSD is used as the mirror monitor, the center of gravity of the light projected on the mirror monitor is obtained by obtaining the difference between the outputs from the terminals, and the position is deviated from the initial setting. Can be detected.

When the position is displaced downward in the projection plane, the microcomputer 114 gives an instruction to shift the screen upward, and in that case, the process proceeds to step # 15004.

When there is no instruction, step # 1500.
Go to 5.

At step # 15004, the scanning mirror driving means 315a is controlled to offset the scanning center of the scanning mirror 315 in the plus direction by a predetermined amount.

In step # 15007, it is confirmed that the screen is within the proper range by confirming that the center of light projection for irradiating the mirror monitor is at the initial setting position, and this flow is terminated. If not, the process returns to step # 15003. .

At step # 15005, the microcomputer 114
Discriminates an operation for shifting the position of the projection screen in the downward direction, and when the instruction is given, the process proceeds to step # 15006, and otherwise, it is determined that there is no deviation in the projection position, and this flow ends. .

At step # 15006, the scanning mirror driving means 315a is controlled to offset the scanning center of the scanning mirror 315 by a predetermined amount in the minus direction.

By the above operation, the position error of the light emitting unit in the vertical direction (in FIG. 26, the direction perpendicular to the optical axis direction of the light emitting unit 313 and in the plane of the drawing) is absorbed by the offset of the scanning position of the mirror.

With respect to the positional deviation in the vertical direction of the paper surface of FIG. 26, a light projecting element having a margin is provided at both ends of the light projecting elements arranged in the light emitting unit, and the mirror monitor irradiates the gravity center of gravity in the same manner as in the flow of FIG. The projection area is set by detecting the position and setting which light-emitting element among the whole light-emitting elements is to display the image, and the position error after the light-emitting unit is replaced is interpolated.

[0343] Thus, the light emitting element (light emitting unit 313)
And the projection optical system (315, 316a, 316b, 316
c) and 316d), holding means (housing 317) provided on the optical path of the projection optical system for detachably holding the optical path light emitting element unit, and attachment / detachment detecting means for detecting attachment / detachment of the light emitting element to / from the holding means. (Lid open / closed detection means 34
d), projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and projection direction calibration means for operating the projection direction control means based on the output of the attachment / detachment detection means (flow chart in FIG. 30). ) And the projection direction control means has a reflection optical system (scanning mirror 315) that vibrates at a predetermined amplitude and frequency, and the reflection optical system scans the projection of the light emitting element light emitting element to form an image. When the light emitting unit is replaced, the attachment / detachment detection means offsets the vibration direction of the reflection optical system when the attachment / detachment detecting means detects the replacement of the light emitting element, thereby compensating for a mounting position error in the light emitting element. The deviation of the light emitting direction due to the individual difference of the light emitting unit is complemented so that stable projection can be always performed. Further, it has a reflection direction detection means (mirror monitor 319) for detecting the reflection direction of the reflection optical system, and the light projection direction control means controls the vibration offset amount based on the signal of the reflection direction detection means. In addition, the mounting position error can be complemented with high accuracy.

In addition, a light emitting element (light emitting unit 313),
Projection optical system (315, 316a, 316b, 316c,
316d) and is provided on the optical path of the projection optical system,
Holding means (housing 317) for detachably holding the optical path light emitting element unit, and attachment / detachment detection means (lid opening / closing detection means 34d) for detecting attachment / detachment of the light emitting element to / from the holding means.
, A projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and a display for prompting the operation of the projection direction control means based on the output of the attachment / detachment detection means (step # 1100).
2) is configured so that stable projection display can always be performed.

(Fifth Embodiment) In the third and fourth embodiments, projection is performed by reflecting the light projected by the mirror 39 provided on the back surface of the lid 32.

At this time, a photographing lens is arranged on the back surface side of the lid 32 in order to photograph the vicinity of the projection range.

For that purpose, for example, the screen 41 on the front surface side
It was not possible to photograph the observer while looking at the display screen 33.

Recently, the spread of videophones in mobile devices has been considered, and in such a case, the speaker talks while facing the photographed image of the other person on the display screen 33 or the screen 41, and at the same time, his or her facial expression. Will be taken and sent to the other party.

In such a case, it is necessary to arrange the taking lens on the surface side on which the display section (display screen or screen) is arranged.

In the fifth embodiment, a layout will be described in which a photographing lens is arranged on the display unit side and a region near the projection region can be photographed at the time of projection.

FIG. 37 is a perspective view of the fifth embodiment of the present invention, showing a state in which an image is projected on the screen 51 on the front side, and FIG. 38 is a side view at that time.

FIG. 39 is a perspective view when an image is projected on a desk or the like.

Here, the taking lens 38 having the optical axis 38a
Is provided on the upper surface of the lid 32.

As can be seen from FIG. 38, the photographing range is a region surrounded by 38b and 38c with respect to the photographing optical axis 38a. If there is a speaker in this region, the facial expression of the speaker is photographed and the other side is photographed. You can send.

When used as an electronic loupe, the lid 32 is rotated counterclockwise from the state shown in FIG. 38 to obtain the state shown in FIG.

At this time, the taking lens takes an image of a subject within the photographing range 310.

Then, at this time, the light projected from the fourth free-form curved reflecting mirror 316d in the storage optical system 34 is reflected by the screen 51 provided on the surface of the lid 32 in FIG.
The image is projected on 11.

FIG. 40 is a side view of this state.
For the shooting range 310 surrounded by b and 38c, the main body 31
Since the projection range 311 surrounded by 39a and 39b is arranged on the upper side (on the right side of the drawing) of the object, the subject and its enlarged image can be displayed side by side, and it is easy to correspond to each other.

This is, for example, for fine work within the shooting range 31
When 0 is performed, the magnified image is projected beside it, so it is possible to work while matching the magnified image with the actual work, which is a very convenient layout.

Here, since the screen generally does not reflect the light projected, even if light is projected from the fourth free-form curved reflecting mirror 316d to the screen 51 in the state shown in FIGS. 39 and 40, it is reflected. It is not possible to project an image on the desk.

Therefore, the screen of this embodiment also has a reflection function.

FIG. 41 shows a sectional view thereof, and FIG.
7 is a cross section of the lid portion 32 in the state of FIG. 38.

Here, the screen 51 has a structure like a rotating blind, and has a screen surface 51a and a reflecting surface 5.
It has 1b.

In the state of FIG. 41, the screen surface 51
Since a is exposed on the surface, the light projection 51c projects an image on the screen, and the viewer can see the image.

FIG. 42 is a cross section of the lid portion 32 in the state of FIG. 39 and FIG. 40. At this time, each blade of the blind constituting the screen 51 rotates 180 degrees, and the reflecting surface 51b is exposed on the surface side. ing.

Therefore, the light projected from the free-form curved reflecting mirror 316d can be reflected by the reflecting mirror 51b to project an image on a desk.

The rotation of each wing constituting the screen 51 is mechanically linked to the first shaft 36a of the hinge 36,
When the angle of the lid portion 32 is changed, the screen is automatically switched to the reflective surface, so that the viewer does not need any extra operation and the usability is improved.

Although this screen has a structure in which each wing rotates like a blind and switches to a reflecting surface and a screen, as shown in FIG. 43, the screen 52 is made into a fine mountain shape and the lower surface side 52a is When the screen and the upper surface side 52b are made to be a reflecting surface, it is possible to have both the role of the screen and the role of the reflecting mirror depending on the direction of the projection light to the lid part 32, and the lid part 32 of the fourth free-form curved reflecting mirror 316d is provided. The role of the screen 52 can be changed by changing the angle.

By thus providing the screen with a role as a projection surface and a role as a reflection surface, the taking lens can be placed on the surface of the lid portion 32, and at the time of photographing, the subject can be seen while looking at the projected image on the desk. I was able to shoot and realized an easy-to-use electronic loupe.

Further, in such a structure, the mirror 39 on the back surface of the lid portion 32 can be eliminated, the weight can be reduced, and the risk of breakage of the mirror can be eliminated.

[0371]

As described above, according to the present invention, since it is not necessary to face the object surface and the taking lens directly, a compact electronic loupe is realized.

Further, since the device does not cover the subject image, it is possible to shoot while looking at the subject image, and since the device does not cover the subject image, the light source for illuminating the subject is not required and the power consumption can be saved.

By adopting the off-axial optical system, it is possible to obtain a distortion-free image with a small device.

More specifically, the optical means (the image pickup device 17, the optical means 18, the opening 16 and the like) shoots a subject in a predetermined range on an extension plane of the optical device (electronic magnifying glass) in the plane direction, and is provided in the optical device. The display means (display screen 12) displays the subject image in a larger size than the subject size, and at the time of shooting, the correction optical means (FIG. 4, FIG. 5), and the correction optical means is configured such that the light flux enters the inside through one refracting surface, is repeatedly reflected by a plurality of reflecting surfaces, and exits through another refracting surface. Compact and high-quality by a layout composed of (a reflective optical system, an off-axial optical system in a narrow sense) and an image sensor 17 arranged on the surface on which a light beam emitted from the optical system is imaged. Together perform the shooting an object, such energy of an object irradiated since the external light to the imaging subject because there is never to cover the electronic magnifier photographed object hits becomes unnecessary, and can shoot while observing the photographed subject.

Since the distance between the subject and the image pickup surface can be shortened, the electronic loupe can be downsized.

Further, it has optical means (imaging device 17, optical means 18, aperture 16 and the like) for photographing a subject plane range of a plane substantially parallel to the plane of the optical device (electronic loupe), and the optical axis of the optical means. Since the portable device with the photographing optical means is constituted by the correcting means for correcting the photographing distortion caused by the angle formed by the plane range of the subject, the photographing distortion caused by miniaturization can be optically corrected.

Also, in an optical device having a display screen,
Since the portable device with the photographing optical means is configured by the optical means for photographing the plane range substantially parallel to the display image on the extension of the display screen, the photographing subject is not covered by the electronic loupe, and the photographing subject is exposed to the external light. Therefore, the energy for illuminating the subject is unnecessary, and it is possible to shoot while observing the subject.

Further, an optical device having a grip portion, the image display surface provided on the extension of the grip portion, and the photographing opening provided on the opposite surface of the grip side from the image display surface. And a photographing means which is substantially parallel to the image display surface and which is configured to photograph the subject plane on the opposite side of the grip part with the photographing optical system interposed therebetween and to magnify and display on the image display surface. A loupe can be realized.

Further, since the optical device having the projection display screen has the optical means for photographing the extended plane range of the projection display screen, the electronic magnifying glass which is easy to use because the display screen can be seen at the same time while watching the photographed subject is provided. It was realized.

[0380] By arranging the layout ideas listed above, an optical system that can correct the distortion of a subject image in the plane range on the extension line of the optical device in the plane direction is provided to check the subject image. We were able to realize an electronic magnifier that can shoot, is small and lightweight, and does not require a light source for shooting illumination.

Further, in this way, optical means (photographing lens 38)
A predetermined range (31) of the extension plane of the optical device in the plane direction.
0) the subject is photographed, and the projection means (line light projecting element 313, mirror 31) provided in the optical device (electronic magnifying glass).
5, first, second, third, fourth free-form curved mirror 316a,
316b, 316c, 316d, the mirror 39, etc.) is configured to display the subject image photographed on the surface (312) on which the subject is located, in a size larger than the subject size, and the projection image on the projection unit is the surface on which the subject is located. Since the image is projected adjacent to the object photographing range 310 (projection surface 311), the enlarged projection image can be viewed without keeping a large eye from the object surface.

Further, an optical system (first, first) in which the optical means is constructed so that the light flux enters the inside through one refracting surface, is repeatedly reflected by a plurality of reflecting surfaces, and exits through another refracting surface. 2, 3rd and 4th free-form curved mirrors 316a, 316
b, 316c, 316d) and an image pickup element arranged on the surface on which the light flux emitted from the optical system to the outside forms an image, and a projection optical system using such an off-axial optical system causes projection. Even when the image is projected on the screen near the optical system, it is possible to project the image without distortion.

Further, in the optical device (electronic magnifying glass) having the photographing means (photographing lens 38), a magnified image of the photographed subject is projected in a predetermined range 311 on the extension of the subject photographed by the photographing means. The movement direction of the line of sight is natural, and it is possible to make the configuration easy to see.

Further, the opening / closing lid portion (lid portion 3 for protecting the operation portion is
2) and a projection means for projecting an image (line projection element 31
3, a mirror 315, a first, a second, a third, and a fourth free-form curved reflecting mirrors 316a, 316b, 316c, 316d), and a lid for reflecting light projected from the projection means. The projection direction can be controlled by setting the lid part at a plurality of opening / closing angles by means of a hinge 36 of a two-link shaft support with respect to the main body 31, which has a means (mirror 39), thereby making the portable device compact. Now that you can do it, you can freely control the direction you want to project.

Then, an opening / closing lid portion (lid portion 32) for protecting the operation portion and a projection means (line light projecting element 31) for projecting an image.
3, a mirror 315, a first, a second, a third, and a fourth free-form curved reflecting mirrors 316a, 316b, 316c, 316d), and a lid for reflecting light projected from the projection means. Means (mirror 39) and display means (display screen 33) for displaying an image, and whether the image is projected by the projection means or displayed on the display means according to the opening / closing angle of the lid part with respect to the main body. Since the display is switched, it is possible to easily switch between using the display means and the projection means.

Further, an opening / closing lid portion (lid portion 3 for protecting the operation portion is provided.
2) and a projection means line projecting element 313 for projecting an image,
A portable device (electronic magnifying glass) having a mirror 315, first, second, third, and fourth free-form surface reflecting mirrors 316a, 316b, 316c, 316d, which is rotatably supported by a main body 31. Biaxial 36a) arm part (hinge 36)
The orientation of the lid can be freely changed with respect to the main body by rotatably supporting the lid (first shaft 36a) on the extension of the , You can now project the image to the desired place.

[0387] As described above, a plurality of light emitting elements (313
e, 313f, 313g, 313h, 313i, 313
j, 313k) and light-collecting beads 314 arranged on the surface of each light-emitting element to collect light emitted from the light-emitting element.
And a light emitting element unit 313 composed of a drive circuit for driving each light emitting element and a control circuit (controller) 313l
And the projection optical system (315, 316a, 316b, 316
c and 316d) and a holding means (housing 317 or the like) that is provided on the optical path of the projection optical system and detachably holds the optical path light emitting element unit. It is possible to provide a unit, can always perform stable projection, and the projection optical system is an axis for projecting an image of the light flux from the light emitting element unit repeatedly on the projection unit by a plurality of reflection optical units having free-form curved surfaces. Since it is a removal optical system, it is possible to perform projection without distortion even on a screen near the projection optical system. The light emitting element unit has an elapsed time setting means (timer 320) for determining the elapsed time of use of the light emitting element. When the use time of the light emitting element exceeds a predetermined time, the drive circuit performs predetermined control to emit light. In order to extend the life of the light emitting element, specifically, when the usage time of the light emitting element exceeds a predetermined time, the drive circuit reduces the drive power of the light emitting element to extend the life of the light emitting element unit. There is.

Further, the light emitting means (light emitting unit 313),
Usage time measuring means (timer 320) for measuring the elapsed time of use of the light emitting means, usage condition measuring means (such as temperature and humidity detecting means 321) for measuring usage conditions of the light emitting means, usage time measuring means and usage condition measuring means Life calculation means (microcomputer 114) for calculating the life of the light emitting means based on the output of
And a life display means (microcomputer 114, step # 9002) for displaying the life of the light emitting means before the light emitting means reaches the life calculated by the life calculating means,
The use condition measuring means measures the use condition of the light emitting means based on at least the temperature condition, the humidity condition, or the power condition when the light emitting means is used, so that the condition of the light emitting unit can be accurately detected and the life of the light emitting unit can be measured. The light emitting unit can be replaced in advance, and stable projection can always be performed.

Summarizing the above items, the light emitting means (light emitting unit 313), the use time measuring means (timer 320) for measuring the elapsed time of use of the light emitting means, and the use condition measuring means (temperature) for measuring the use condition of the light emitting means. Humidity detecting means 32
1), a life calculating means (microcomputer 114) for calculating the life of the light emitting means based on the outputs of the use time measuring means and the use condition measuring means, and the light emitting means when the light emitting means reaches the life calculated by the life calculating means. A light emission amount control means (microcomputer 114, step # 9003) for reducing the light emission amount of the light emitting means is provided, and the use condition measuring means is configured to operate the light emitting means based on at least a temperature condition, a humidity condition, or a power condition when the light emitting device is used. The configuration is such that the usage conditions are measured to indicate the replacement of the light emitting unit and prolong the service life.

Then, the light emitting element (light emitting unit 313)
And the projection optical system (315, 316a, 316b, 316
c) and 316d), holding means (housing 317) provided on the optical path of the projection optical system for detachably holding the optical path light emitting element unit, and attachment / detachment detecting means for detecting attachment / detachment of the light emitting element to / from the holding means. (Lid open / closed detection means 34
d), projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and projection direction calibration means for operating the projection direction control means based on the output of the attachment / detachment detection means (flow chart in FIG. 30). ) And the projection direction control means has a reflection optical system (scanning mirror 315) that vibrates at a predetermined amplitude and frequency, and the reflection optical system scans the projection of the light emitting element light emitting element to form an image. When the light emitting unit is replaced, the attachment / detachment detection means offsets the vibration direction of the reflection optical system when the attachment / detachment detecting means detects the replacement of the light emitting element, thereby compensating for a mounting position error in the light emitting element. The deviation of the light emitting direction due to the individual difference of the light emitting unit is complemented so that stable projection can be always performed.

Alternatively, the light emitting element (light emitting unit 313)
Is a plurality of light emitting element arrays (313e, 313f, 313g,
313h, 313i, 313j, and 313k), a projection element array in a predetermined area among a plurality of projection element arrays is operated for image display at the time of projection (line projection element). Both ends of the image are used for the image monitor but not for image projection), and when the attachment / detachment detecting means (lid opening / closing detecting means 34d) detects the replacement of the light emitting elements, the image is displayed in the plurality of light emitting element rows. By changing the area that operates for display, the mounting position error is complemented by the light emitting element so that stable projection can always be performed.

Then, a reflection direction detecting means (mirror monitor 319) for detecting the reflection direction of the reflection optical system is provided,
The projection direction control means controls the vibration offset amount based on the signal from the reflection direction detection means so that the mounting position error can be complemented easily and accurately.

Further, a light emitting element (light emitting unit 313),
Projection optical system (315, 316a, 316b, 316c,
316d) and is provided on the optical path of the projection optical system,
Holding means (housing 317) for detachably holding the optical path light emitting element unit, and attachment / detachment detection means (lid opening / closing detection means 34d) for detecting attachment / detachment of the light emitting element to / from the holding means.
, A projection direction control means (scanning mirror driving means 315a) for controlling the projection direction, and a display for prompting the operation of the projection direction control means based on the output of the attachment / detachment detection means (step # 1100).
2) is configured so that stable projection display can always be performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a sectional view of the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of a shooting range according to the first embodiment of the present invention.

FIG. 4 is a block diagram of the first embodiment of the present invention.

FIG. 5 is a flowchart of the first embodiment of the present invention.

FIG. 6 is a flowchart of the first embodiment of the present invention.

FIG. 7 is a flowchart of the first embodiment of the present invention.

FIG. 8 is a flowchart of the first embodiment of the present invention.

FIG. 9 is a flowchart of the first embodiment of the present invention.

FIG. 10 is a flowchart of the first embodiment of the present invention.

FIG. 11 is a sectional view of a second embodiment of the present invention.

FIG. 12 is a flowchart of the second embodiment of the present invention.

FIG. 13 is a flowchart of a second embodiment of the present invention.

FIG. 14 is a flowchart of a second embodiment of the present invention.

FIG. 15 is a flowchart of the second embodiment of the present invention.

FIG. 16 is a perspective view of a third embodiment of the present invention.

FIG. 17 is a side view of the third embodiment of the present invention.

FIG. 18 is a perspective view of a third embodiment of the present invention.

FIG. 19 is a perspective view of a third embodiment of the present invention.

FIG. 20 is a side view of the third embodiment of the present invention.

FIG. 21 is a sectional view of a third embodiment of the present invention.

FIG. 22 is a sectional view of the third embodiment of the present invention.

FIG. 23 is a sectional view of a third embodiment of the present invention.

FIG. 24 is a perspective view of a third embodiment of the present invention.

FIG. 25 is a perspective view of a third embodiment of the present invention.

FIG. 26 is a sectional view of the third embodiment of the present invention.

FIG. 27 is a block diagram of a third embodiment of the present invention.

FIG. 28 is a flowchart of the third embodiment of the present invention.

FIG. 29 is a flowchart of the third embodiment of the present invention.

FIG. 30 is a flowchart of the third embodiment of the present invention.

FIG. 31 is a flowchart of the third embodiment of the present invention.

FIG. 32 is a perspective view of a fourth embodiment of the present invention.

FIG. 33 is a side view of the fourth embodiment of the present invention.

FIG. 34 is a flowchart of the fourth embodiment of the present invention.

FIG. 35 is a flowchart of the fourth embodiment of the present invention.

FIG. 36 is a flowchart of the fourth embodiment of the present invention.

FIG. 37 is a perspective view of a fifth embodiment of the present invention.

FIG. 38 is a side view of the fifth embodiment of the present invention.

FIG. 39 is a perspective view of a fifth embodiment of the present invention.

FIG. 40 is a side view of the fifth embodiment of the present invention.

FIG. 41 is a sectional view of the fifth embodiment of the present invention.

FIG. 42 is a sectional view of the fifth embodiment of the present invention.

FIG. 43 is a sectional view of the fifth embodiment of the present invention.

FIG. 44 is a perspective view of an electronic loupe having a grip portion.

FIG. 45 is a perspective view of a portable electronic loupe.

[Explanation of symbols]

11 body 12 Display screen 12a, 12b scroll bar 13a, 13b operation unit 14a microphone 14b speaker 15 shooting range 16 open windows 17 area sensor (two-dimensional area image sensor) 18 Shooting optical system 19 Main board 21 1-dimensional line sensor 22 Zoom lens 22a Zoom direction 23 mirror 31 Body 32 Lid 32a rotation direction 33 Display (display screen) 34 Optical storage 34a Storage direction 34b Light emitting unit replacement lid 34c Lid opening / closing direction 34d lid opening / closing detecting means 35 Projector 35a Storage direction 36 hinges 36a 1st axis 36b Second axis 37 Operation part 38 cameras 38a shooting optical axis 38b Shooting lower limit 38c Shooting upper limit 39 mirror 39a Shooting lower limit 39b Shooting upper limit 110 batteries 111 distortion correction shooting range 112 Vibration detection means (accelerometer) 113 Movement mechanism (mouse) 310 Shooting range 311 Display range 312 Subject (screen surface) 313 Line projector (organic EL) 313a contact 313b contact 313c package 313d Transparent substrate (glass) 313e Transparent base material (quartz) 313f translucent anode (indium oxide) 313g Organic hole transport layer (organic EL structure medium) 313h Organic light emitting layer (organic EL structure medium) 313i Organic electron transport layer (organic EL structure medium) 313j Electron injection layer 313k light reflective cathode 313l drive circuit, controller 314 Condensing element (bead) 315 Scanning mirror 315a Scanning mirror driving means 316a First free-form curved mirror 316b Second free-form curved mirror 316c Third free-form curved mirror 316d Fourth free-form curved mirror 317 housing 317a First positioning unit 317b Second positioning unit 317c Pressing part 317d Deflection part 317e pin 318 lock claw 318a holding part 318b flexible portion 318c pin 318d hinge 318e Extension spring 319 Mirror drive monitor

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2K103 AA07 AA13 AA16 AB10 BA02                       BB05 BC03                 5C058 AA06 BA17 BA27 BA35 EA02                       EA51                 5C072 AA01 BA01 CA05 CA09 DA02                       DA04 DA21 DA23 EA05 EA08                       PA08 PA10 RA12 XA10

Claims (13)

[Claims] 1. A light-emitting element unit including a plurality of light-emitting elements, light-collecting beads arranged on the surface of each light-emitting element to collect light emitted from the light-emitting element, and a drive circuit and a control circuit for driving each light-emitting element. A projection optical apparatus having: a projection optical system; and a holding unit that is provided on the optical path of the projection optical system and holds the optical path light emitting element unit detachably. 2. The projection optical system according to claim 1, wherein the light projecting optical system is an off-axis optical system that repeatedly projects an image of a light beam from a light emitting element unit on a plurality of reflective optical units having free-form curved surfaces onto a projecting unit. machine. 3. The light emitting element unit according to claim 1, further comprising an elapsed time setting means for determining an elapsed time of use of the light emitting element, and a predetermined control of the drive circuit when the used time of the light emitting element exceeds a predetermined time. Projection optics to do. 4. The projection optical apparatus according to claim 3, wherein the drive circuit lowers the drive power of the light emitting element when the usage time of the light emitting element exceeds a predetermined time. 5. A light emitting means, a use time measuring means for measuring a use elapsed time of the light emitting means, a use condition measuring means for measuring a use condition of the light emitting means, and an output of the use time measuring means and the use condition measuring means. A projection optical apparatus having a life calculating means for calculating the life of the light emitting means based on the light emitting means and a life displaying means for displaying the life of the light emitting means before the light emitting means reaches the life calculated by the life calculating means. 6. The projection optical apparatus according to claim 5, wherein the use condition measuring means measures the use condition of the light emitting means based on at least a temperature condition, a humidity condition or an electric power condition when the light emitting means is used. 7. A light emitting means, a use time measuring means for measuring a use elapsed time of the light emitting means, a use condition measuring means for measuring a use condition of the light emitting means, and an output of the use time measuring means and the use condition measuring means. A projection optical apparatus comprising: a life calculating means for calculating a life of the light emitting means based on the light emitting means; and a light emission amount control means for reducing the light emitting quantity of the light emitting means before the light emitting means reaches the life calculated by the life calculating means. 8. The projection optical apparatus according to claim 7, wherein the use condition measuring unit measures the use condition of the light emitting unit based on at least a temperature condition, a humidity condition, or an electric power condition when the light emitting unit is used. 9. A light emitting element, a light projecting optical system, a holding means provided on the optical path of the light projecting optical system and detachably holding the light path light emitting element unit, and detecting attachment / detachment of the light emitting element to / from the holding means. A projection optical apparatus having attachment / detachment detection means, a projection direction control means for controlling a projection direction, and a projection direction calibration means for operating the projection direction control means based on an output of the attachment / detachment means. 10. The image according to claim 9, wherein the light projecting direction control means has a reflective optical system that vibrates at a predetermined amplitude and frequency, and the reflective optical system scans the projected light of the light emitting element light emitting element. A projection optical device for compensating a mounting position error in the light emitting element by offsetting the vibration direction of the reflection optical system when the attachment / detachment detecting means detects replacement of the light projecting element. 11. The light emitting element according to claim 9, wherein the light emitting element is composed of a plurality of light projecting element arrays, and a plurality of light projecting element arrays in a predetermined region are operated for image display during projection. Then, when the attachment / detachment detecting means detects the replacement of the light emitting element, the projection optical apparatus which complements the mounting position error of the light emitting element by changing the area to be operated for image display in the plurality of light emitting element rows. . 12. The reflection direction detection means for detecting the reflection direction of the reflection optical system according to claim 10, wherein the projection direction control means controls the vibration offset amount based on a signal from the reflection direction detection means. Projection optics. 13. A light emitting element, a light projecting optical system, holding means provided on the optical path of the light projecting optical system for detachably holding the light path light emitting element unit, and attachment / detachment for detecting attachment / detachment of the light emitting element to / from the holding means. A projection optical apparatus having a detection means and a light projection direction control means for controlling the light projection direction, and a display means for performing a display prompting the operation of the light projection direction control means based on the output of the attachment / detachment detection means.