JP3237142B2 - Optical system adjusting device and optical apparatus having the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a space between a pair of left and right optical systems.
Also, the present invention relates to a device for adjusting diopter .

[0002]

2. Description of the Related Art Since the human interpupillary distance varies from person to person , a mechanism for adjusting the distance between a pair of right and left optical systems (hereinafter referred to as a mechanism).
"The interpupillary distance adjusting mechanism" is indispensable. Conventionally, the interpupillary distance adjusting mechanism has been manually operated. Further
In addition, the diopter of the human eye often differs between left and right,
Adjustment of the diopter of the pair of left and right optical systems is indispensable.
Conventionally, the diopter adjustment is also usually performed manually.

[0003]

[SUMMARY OF THE INVENTION However, adjustment by the manual is a cumbersome, yet accurately regulated
There is a disadvantage that it is difficult to section. The present invention has been made in view of such a point, and has a pair of left and right optical systems.
It is an object of the present invention to provide a configuration capable of automatically adjusting the distance .

[0004]

In order to achieve the above object, an optical system adjusting apparatus according to the present invention comprises: a data extracting means for obtaining data obtained depending on a distance between a left pupil and a right pupil of a user; The pair of left and right eyepieces are driven in the direction orthogonal to the optical axis according to the output value of the means, and the optical axis of the eyepiece is
And an interpupillary distance changing means for making the distance between the pupils coincide with the distance between the pupils . In this case, the data extracting means includes a light projecting means for projecting light to the left and right eyes, and a left and right light quantity detecting means for receiving light from a portion including the boundary between the black eye and the white eye and detecting the light quantity. Means for outputting an interpupillary distance adjustment signal based on the outputs of the left and right light quantity detecting means. In addition, diopter adjustment can be automatically adjusted by providing diopter detection means and means for driving a lens based on the output of the diopter detection means. Also,
The optical apparatus of the present invention includes the optical system adjusting device having the above configuration.

[0005]

According to the structure of the present invention, data obtained depending on the distance between the left and right pupils of the user is obtained, and the eye width of the user and the distance between the eyepieces are determined based on the data. The eyepiece is moved to match.

[0006]

1 to 5 show the appearance of this embodiment.
In this embodiment, as will be described later, AF (focusing), diopter adjustment, interpupillary adjustment, etc., are driven by a motor, and these drives are performed by human nose. ) Is automatically started upon detection of), there is no such operation member, and therefore, the appearance is clean.

In this embodiment, AF and diopter adjustment are treated as the same concept. That is, performing AF is to perform diopter adjustment, and performing diopter adjustment is to perform AF.
It is a relationship that is to do. Therefore,
In the following description, AF will be described as diopter adjustment, and the description of AF will be omitted.

As shown in the plan view of FIG. 1, a display unit 2 composed of an LCD (Liquid Crystal Display) is provided on the upper surface of the binoculars 1, and this display unit 2 has a current binoculars as will be described later. The position and time are displayed. 3 is O of the display
Display ON / OFF buttons for setting N and OFF, and buttons 4 and 5 for time adjustment. Note that coordinate data of constellations and the like displayed on the display unit 2 are stored in a memory in advance. If this memory is an IC card, different data is stored in each IC card. By doing so, the types of display can be increased and replaced, so that various displays can be performed on the binoculars 1. In this embodiment, the IC card
6 is the insertion slot, 7
Is a window for viewing the IC card.

A bottom view in FIG. 3 and a rear view in FIG. 4 show a light emitting section 8 and a light receiving section 9 for projecting light for detecting that the user has looked into the binoculars 1. This is because, as described later, when the user's noise enters the recess 10 of the binoculars, the light from the light emitting section 8 is blocked and does not reach the light receiving section 9 to take advantage of the user's. To detect usage,
As a result, the diopter adjustment and the interpupillary adjustment are started.

FIG. 6 is a rough plan layout diagram of the configuration of the present embodiment, and FIG. 7 is a layout diagram viewed from the eyepiece side. In these figures, the lens barrels 11 and 12 have objective lenses 13 and 14 at the front, eyepieces 15 at the rear,
The half mirrors 17 and 18 are provided at the intermediate point in addition to the half mirrors 16. Further, at the rear end, interpupillary distance detecting devices 19 and 20 are provided, respectively. In addition, each interpupillary distance detecting device 19, 2
0 denotes a pair of light receiving detectors 19a, 19b and 20 respectively.
a and 20b. These light receiving detectors respond to light emitted from a light source provided in diopter detectors 21 and 22, which will be described later, and reflected by the user's eyes through eyepieces 15 and 16. In FIG. 6, G
1, G2 is a reduction gear, and Q1, Q2 are diopter adjustment cams.

The diopter detectors 21 and 22 have a light source 70, a half mirror 73, a CCD line sensor 45 and the like as shown in FIG. The light beam emitted from the light source 70 is the lens barrel 1
It is bent at right angles by half mirrors 17 and 18 in 1 and 12 and advances toward the eyes of the user through eyepieces.
Part of the light reflected by the user's eyes goes to the interpupillary distance detecting devices 19 and 20, and the rest enters the diopter detecting device through the eyepieces 15 and 16 and the half mirrors 17 and 18. . The diopter adjustment motors 23 and 24 operate according to the outputs of the diopter detectors 21 and 22. 25 is an interpupillary distance adjustment mode
And is driven by the output of the interpupillary distance detectors 19 and 20. By driving the motor 25, the lens barrels 11, 1
2 (therefore, the distance between the eyepieces 15 and 16) changes. In FIG. 7, reference numeral 26 denotes a frame of the binoculars 1.

Next, FIG. 8 is a block diagram showing a circuit configuration in this embodiment. In the figure, 30 is the main CP
U, a noise detection circuit 31, a switch 32, a motor driver circuit 33 for adjusting the interpupillary distance, a GPS (glob)
al Positioning System) Circuit 3
4. CPU 36 for display control, CPU for right diopter adjustment (focus) connected to eye width detection circuit 35
41, is also connected to the CPU 44 for left diopter adjustment.

The switch 32 is a display ON / OFF switch driven by operating the display ON / OFF button 3 in FIG. A display control CPU 36 receives data from a memory 37 (in this case, an IC card) storing constellation data and the like and a GPS circuit 34, performs arithmetic processing on these data, and converts the data into a dot matrix type. Is displayed together with the time (the time measured by the CPU 36 itself) on the display unit 38 configured as described above. At this time, the EL backlight 39 is turned on via the EL drive circuit 40 for the backlight. This is because the display unit 38 is configured by a liquid crystal display element (LCD) in the present embodiment.

A right diopter (focus) adjusting CPU 41 controls the driving of a CCD line sensor 42 in the diopter detecting device 22, receives information from the CCD line sensor 42 and supplies the information to the main CPU 30, and a motor. Driving the right diopter adjusting motor 24 via the driver circuit 43; The left diopter (focus) adjustment CPU 44 has substantially the same function as the right diopter (focus) adjustment CPU 41, except that it is related to the left diopter adjustment. Numeral 45 is a line sensor in the diopter adjusting device 21, and numeral 46 is a motor driver circuit for the left diopter adjusting motor 23.

The noise detecting circuit 31 comprises a light emitting element 47 which is turned on by a drive signal from the main CPU 30, a light receiving element 48 for receiving light from the light emitting element 47, and a detecting circuit 49, as shown in FIG. Light emitting element 4
When the light from 7 is blocked by the noise and does not reach the light receiving element 48, the detection circuit 49 detects this and gives a noise detection signal to the main CPU 30.
These light emitting element 47 and light receiving element 48 face each other via a light projecting lens 101 and a light receiving lens 102 with a recess 10 formed at the center rear end of the binoculars 1 as shown in FIG. In FIG. 15, reference numerals 103 and 104 denote eye hoods made of a soft rubber material.
5 and 106 are protective glasses.

In this embodiment, the GPS circuit 34 is a GPS
Is a circuit provided for knowing the current position of the binoculars by using. The GPS is a radio navigation system using a plurality of artificial satellites, and can extremely accurately obtain three-dimensional position information of a GPS receiver. Each satellite transmits a microwave satellite signal modulated with pseudo-random noise (hereinafter referred to as "PN code"). Since each satellite uses a different PN code, the GPS receiver generates a PN code corresponding to the specific satellite and correlates with the received code to transmit the PN code from the specific satellite. Signals can be selectively received.

Hereinafter, the configuration of the GPS receiver used in the binoculars of this embodiment will be described with reference to FIG. This GPS receiver includes components indicated by reference numerals 51 to 61. Reference numeral 51 denotes an antenna for receiving a satellite signal from each artificial satellite (not shown). The RF (radio frequency) signal input to the antenna 51 is input to the mixer 52. On the other hand, the local oscillation signal CK1 generated by the local oscillator 53 is
After being spread by the PN code output of the PN code generator 55 through the PN code generator 55, the PN code is input to the mixer 52. This allows RF
The signal is converted to an IF (intermediate frequency) signal and input to a data demodulation circuit 56. The data demodulation circuit 56 demodulates data including a satellite signal transmission time from an input signal. The demodulated data is input to a data processing circuit 57 and a delay measurement circuit 58.

Upon receiving the demodulated data, the delay measuring circuit 58 first sends a timing signal to the PN code generator 55. The PN code generator 55 constantly generates a PN code by the clock output CK2 of the PN code clock generator 59. When the above timing signal is input, the generated PN code is measured with a delay. It is sent to a circuit 58. The delay measuring circuit 58 measures the delay time of the PN code when the correlation between the received PN code and the PN code from the PN code generator 55 is obtained. This delay time is obtained by counting the highly stable clock CK3 generated by the counting clock generator 60, and this counted value is used as the PN code.
This is output as time data required for data correlation, that is, delay data. This delay data is sent to the data processing circuit 5
7

The data processing circuit 57 comprises a microprocessor and is driven by a clock CK4 from a data processing clock generator 61. Then, the radio wave propagation time from the satellite to the positioning device is obtained from the transmission time data and the reception time data in the demodulated data, thereby detecting the distance from the satellite to the positioning device. This distance information and the position information of the satellite itself in the demodulated data are obtained for each satellite,
The position information (longitude, latitude, altitude) of the locator is calculated from each acquired data, and the calculation result is output to the display CPU 36.

The display CPU 36 has a timekeeping function, and performs arithmetic processing based on the timekeeping time, the star coordinate data taken in from the memory 37 and the position information from the GPS circuit. The state of each constellation visible from the position is displayed on the display unit 2. At this time, time and position information are also displayed at the same time. 19 to 21 show display examples, in which the date and time are shown in the upper left corner of the display unit 2, the time is shown in the upper right corner, the current position is shown in the lower right corner, and the altitude (sea level) is shown in the lower left corner. Here, NL indicates north latitude, EL indicates east longitude, and WL indicates west longitude.

Next, FIG. 11 is a schematic diagram of a diopter detecting device 21 and an interpupillary distance detecting device 19 incorporated in the eyepiece of the left optical system of the binoculars 1. The light emitted from the light source 70 is condensed on the slit 72 by the elliptical mirror 71,
After passing through half mirror 73 from half mirror 1, half mirror 1
7, the eyepiece 15 travels from left to right.
Is projected from the eyepiece lens 15 substantially in parallel. Eyeball 7
5 is located at a position optically equal to the objective lens image plane 76 of the binoculars 1.

A light projecting portion comprising a light source 70, an elliptical reflection mirror 71, and a slit 72 is common to the diopter detecting device 21 and the interpupillary distance detecting device 19, and among the light hitting the eyeball 75, the light entering the pupil 77 is diopter. The detecting device 21 uses the diopter detection. Pupil 7
The light entering 7 is projected on the retina 78 by the eye refractive power. This light is reflected by the retina 78 and travels in the opposite direction on the incident optical path, is reflected by the half mirror 17 and the half mirror 73, and forms an image near the stop 79.

The stop 79 is for cutting stray light other than the above light reflected by the cornea or the like, and has a wider width than the slit 72. Further, a re-imaging lens 80 is disposed further downstream, and the light passing therethrough is split into two optical paths by a split prism 81 and reaches the CCD line sensor 45. CCD
The image on the line sensor 45 is located at different positions in two optical paths when viewed optically. The one reflected on the left side of the drawing is located farther from the image point of the re-imaging lens 80 and the one reflected on the right side is located nearer. .

The light projected and reflected on the retina 78 passes through the eye refracting power and the eyepiece 15 to form an image near the stop 79. This imaging position is at a predetermined position if the diopter matches the image plane of the objective lens due to the refracting power of the eye. As a result, the spread of the two light beams reaching the CCD line sensor 45 changes.
By comparing the intensity distributions of the two light beams on the CCD line sensor, it can be determined whether the diopter is correct or not, and the diopter is shifted by moving the eyepieces 15 and 16 in the optical axis direction. Can be matched. Since the diopter detection apparatus of this embodiment is basically the same as the contrast method in the AF of the camera, for example, Japanese Patent Publication No. 63-442.
A circuit as in No. 05 may be used.

The diopter may be detected by a phase difference method instead of the contrast method. in this case,
The configuration of 45, 79, 80, 81 in FIG. 11 may be replaced with FIG. FIG. 21 is a view showing another embodiment of the optical system of the diopter detecting device. The dashed line Z indicates the optical axis of the eyepiece lens 15, and the dotted line F indicates the planned focal positions of the eyepiece lens 15 and the eye 75. The condenser lens LC is arranged at a position slightly behind the expected focal position F. Condenser lens L
Behind C, the imaging lenses L1, L with the optical axis Z as the symmetry axis
2, a mask plate MK having openings A1 and A2 is provided on the front surfaces of the imaging lenses L1 and L2. In the vicinity of the imaging plane of each imaging lens L1, L2, C
A line sensor 45 made of a CD is provided. The images If, Io and Ib on the optical axis are
5 shows the image in front focus, focus and back focus for the image on the retina in front of 5; The re-images I1o and I2o of the focused image Io are formed at positions substantially coincident with the line sensor -45, and the re-images I1f and I2f of the image If of the front focus are re-images I1o and I1o of the focus. It is formed at a position forward of I2o and close to the optical axis Z, and a re-imaged image I1 of the rear focus image Ib
b and I2b are formed at a position behind the focused re-images I1o and I2o and at a position away from the optical axis Z. Line sensor
By 45, the amount of defocus is detected depending on whether the interval between the two re-images is longer or shorter than the interval between the two re-images at the time of focusing.

The diopter detection using the phase difference method and the contrast method using the contrast method have the following advantages and disadvantages, respectively. The pupil diameter changes depending on the brightness of the visual field. In the phase difference method, since the luminous flux used for detection is constant, even if the pupil diameter changes depending on the brightness of the visual field, the accuracy of diopter detection and the like can be kept constant. However, when the pupil is very bright, the pupil becomes too small, and the light beam for detection may be vignetted. At this time, diopter detection becomes impossible. If a light beam as close as possible to the center of the pupil is used so as to eliminate vignetting, the detection accuracy will deteriorate.
In addition, when the pupil position is slightly deviated from the eyepiece optical axis, vignetting occurs in only one light beam, and the diopter cannot be detected.

Although the accuracy of the contrast method changes depending on the pupil diameter, it is unlikely that the diopter detection becomes completely impossible due to vignetting such as a phase difference. However, when the visual field becomes dark and the pupil diameter increases, the detection accuracy increases. Conversely, when the pupil becomes bright and the pupil diameter decreases, the detection accuracy decreases. Further, the diopter shift amount with respect to the output of the detection unit changes depending on the pupil diameter. In this case, the amount by which the eyepiece is moved cannot be uniquely determined by the output of the detection unit.
This can be corrected in the following manner. Not shown. Another light receiving element for measuring the brightness of the visual field is provided. This may use a sensor for AF if it is AF binoculars. The pupil diameter may be assumed based on the brightness of the visual field, and the coefficient of the amount of movement of the eyepiece with respect to the output of the detection unit may be changed accordingly.

Next, the light receiving section of the eye width detecting device will be described. This detects a shift between the eyepiece optical axis and the pupil position using the principle of detecting eye movement. The embodiment uses a detection system of the pupil position in the left-right direction. Light hitting the pupil from the light projecting unit passes through pupil position detecting lenses 82 and 84 and is received by SPCs 83 and 85. These are arranged so that the pupil position coincides with the optical axis and looks around the boundary between the iris and the iris on a horizontal plane including the optical axis.

If the pupil is shifted to the R side, for example, SPC8
Since the ratio of iris increases and the amount of reflected light decreases due to the increase in the proportion of black eyes, the amount of reflection decreases in SPC8.
The output of the SPC 85 increases because the ratio of the white of the eyes increases in the portion where the eye is glaring. Therefore, when the difference (VL-VR) between the output VL of the SPC 85 and the output VR of the SPC 83 is obtained, the output becomes positive. Conversely, if the pupil is shifted to the L side, the output will be negative. The interpupillary distance is detected based on the outputs of these SPCs 83 and 85. FIG. 12 shows a circuit block of the interpupillary distance detecting device.

Although FIG. 11 shows only the left eye, the same eye width detecting device is provided for the right eye. In FIG. 12, the SPC8 of the eye width detecting device of the right eye is used.
6, 87 are also shown. In FIG. 12, the left eye SP
The difference between the outputs of C83 and C85 is taken by the differential amplifier 88, and the difference between the outputs of the right-eye SPCs 86 and 87 is taken by the differential amplifier 89.
These differences are calculated by the linearity correction devices 90 and 9 respectively.
Through 1, the pupil shift amounts of the left eye and the right eye are obtained. Next, a difference between the outputs of the left eye and the right eye (left eye-right eye) is obtained by the differential amplifier 92. When this value is 0, that is, when the shift amount of the left eye and the shift amount of the right eye are the same as shown in FIG. 13, the interpupillary distance is the same, and thus the interpupillary distance shifting device 9 including the motor 25 is used.
3 does not work.

However, if the output value of the differential amplifier 92 is positive, the optical axis interval of the binoculars is wider than the pupil interval of the right and left eyes as shown in FIG. Lens barrels 11 and 1 so as to reduce the optical axis interval.
2 (eyepieces 15, 16) are moved. Conversely, if the output value of the differential amplifier 92 is negative, the optical axis interval of the binoculars is narrow, and the lens barrels 11 and 12 are moved so as to widen the interval.

In this embodiment, the lens barrels 11 and 12 are common to the objective lenses 13 and 14 and the eyepieces 15 and 16, respectively. However, the objective lens barrel and the eyepiece lens barrel are separately formed. Alternatively, only the eyepiece lens barrel may be moved when adjusting the interpupillary distance. In the present embodiment, the binoculars do not move the respective optical axes of the right eye and the left eye individually so that the pupil shift amount becomes zero, and move only the optical axis interval after calculating the difference between the right eye and the left eye. The subtle movement of the entire eye and the eye, or when the visual field temporarily deviates from the center of the visual field,
This is because the same amount of pupil shift occurs in the same direction for the left eye, and the type of individually moving type frequently moves and is troublesome. In this regard, in the present embodiment, there is no movement for such a temporary object. In addition, since individual moving devices are not required, it can be achieved at low cost.

In this embodiment, as described above, since the light projecting portion of the diopter detecting device and the interpupillary distance detecting device can be used in common, it is possible to achieve compactness and low cost. If a near-infrared LED or the like is used as the light source, a hot mirror or a dichroic mirror can be used as the half mirror, and the brightness of the visual field is not reduced. In addition, it is not perceived by the light.

Next, the flowchart will be described. In the main flow of FIG. 16, when the main flow starts, the main CPU 30 first resets an ED flag indicating that the interpupillary distance has been adjusted in step # 5. Subsequently, in step # 10, the light emitting element 47 (FIG. 9) is turned on for a moment, and then, in step # 15, it is determined whether or not the detection signal is output from the detection circuit 49. If the detection signal is output, it means that the user is looking through the binoculars 1, and the process proceeds to step # 20, where the display unit 2
Is turned off. This is because the display unit 2 is not visible when looking through the binoculars 1, and it is useless to display the display unit 2. The GPS circuit 34 is also turned off for the same reason (step # 2).
5).

Next, in step # 30, the light source 70 for generating light to be applied to the eyes is turned on. And step # 3
It is determined in step 5 whether the ED flag is set. If the ED flag is set, the process proceeds directly to step # 50. If not, the subroutine for adjusting the interpupillary distance is executed in step # 40, and the ED is set in step # 45. After setting the flag, step # 5
Go to 0. Here, the ED flag is set because it is only necessary to adjust the interpupillary distance once as long as the binoculars are used continuously (the detection signal is output in step # 15).
Step # 50 performs binocular diopter adjustment, and when this is completed,
Return to step # 10.

If it is determined in step # 15 that the detection signal has not been output, the process proceeds to step # 55 to turn off the light source. This is to release the noise from the binoculars 1 (therefore, to release the eyes) and to stop looking, so that the light source is turned off to prevent unnecessary consumption of the battery.
That is. After the light source is turned off, the ED flag is reset in step # 60. In other words, this is to ensure that the interpupillary distance is adjusted when the user once removes his / her eyes and becomes non-use, and then uses it again. Next, in step # 65, it is determined whether the display switch is ON. If the display switch is off, the display on the display unit 2 is turned off in step # 90, and the GPS circuit 34 is turned off.
After the FF is set (step # 95), the process returns to step # 10.

If it is determined in step # 65 that the display switch is ON, it is determined in next step # 70 whether an IC card is mounted. Here, if the IC card is mounted, the display of the display unit 2 is turned on and the GPS circuit 34 is also turned on (steps # 75 and # 8).
0) Then, the card function is executed (step # 8)
5) Return to step # 10. If the IC card is not mounted in step # 70, the process returns to step # 10 via steps # 90 and # 95.

FIG. 17 shows a subroutine for adjusting the interpupillary distance in step # 40 of FIG. 16. When the routine is entered, it is first determined in step # 100 whether the left and right pupil shift amounts are the same. If they are the same, it means that the interpupillary distance is correct, so the process proceeds to step # 135 and returns. If they are not the same, it is determined in the next step # 105 whether or not the shift amount of the left eye is larger than the shift amount of the right eye. The motor (M3 motor) 25 is driven, and this is repeated until the amount of displacement between the left and right eyes becomes the same (step # 11).
0, # 115). If the displacement amounts of the left and right eyes become the same, the motor is stopped in step # 130, and then the return is performed.

If the displacement of the left eye is smaller than the displacement of the right eye in step # 120, the motor is driven in a direction to widen the interpupillary distance, and this is repeated until the displacement of the left and right eyes becomes the same. Steps # 120 and # 125). When the deviation amounts are the same, the motor is stopped at step # 130, and then the return is performed.

[0040]

As described above, according to the present invention, data obtained depending on the distance between the left and right pupils of the user is obtained, and based on this data, the eye width of the user and the pair of right and left eyepieces are obtained. Since the eyepiece is moved so that the distance between the lenses coincides with each other, the interpupillary distance adjustment is automatically performed.
Therefore, there is an effect that the adjustment of the eye width is more convenient and the accuracy of the adjustment is better than that of the conventional manual adjustment of the interpupillary distance. Also for diopter adjustment, by providing a diopter detection device and a means for driving a lens so as to change the diopter in accordance with the output of the diopter detection device, automatic diopter adjustment becomes possible, and the same effect is obtained Can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of binoculars embodying the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is also a rear view.

FIG. 5 is a right side view of the same.

FIG. 6 is also a rough planar layout diagram.

FIG. 7 is a layout view from the same rough back side.

FIG. 8 is a block diagram of an electrical configuration of the present embodiment.

FIG. 9 is a diagram showing a noise detection circuit according to the embodiment.

FIG. 10 is a block diagram of a GPS circuit used in this embodiment.

FIG. 11 is a diagram showing an optical system of each device for diopter detection and interpupillary distance detection in the present embodiment.

FIG. 12 is a circuit diagram of the interpupillary distance detecting device according to the present embodiment.

FIG. 13 is an explanatory diagram thereof.

FIG. 14 is an explanatory view of the same.

FIG. 15 is a sectional view showing the structure of the rear part of the present embodiment.

FIG. 16 is a flowchart showing a control operation by the main CPU of the embodiment.

FIG. 17 is a detailed flowchart of a part thereof.

FIG. 18 is a view showing a display example on the display unit of the embodiment.

FIG. 19 is a view showing a display example on the display unit of the embodiment.

FIG. 20 is a view showing a display example on the display unit of the embodiment.

FIG. 21 is a diagram illustrating a phase difference method that can be used in diopter detection according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Binoculars 2 Display part 3 Display ON / OFF button 8 Light emitting part 9 Light receiving part 10 Concave part 11, 12 Lens tube 13, 14 Objective lens 15, 16 Eyepiece lens 17, 18 Half mirror 19, 20 Eye width detecting device 21 , 22 diopter detection device 23, 24 diopter adjustment motor 25 eye width adjustment motor 30 main CPU 31 noise detection circuit 34 GPS circuit 36 display control CPU 37 memory 42, 45 line sensor

Continued on the front page (72) Inventor Kotaro Hayashi 2-3-13 Azuchicho, Chuo-ku, Osaka City Osaka International Building Minolta Camera Co., Ltd. (72) Inventor Kazuo Kimura 2-3-13 Azuchicho, Chuo-ku, Osaka-shi No. Osaka International Building Minolta Camera Co., Ltd. (72) Inventor Kaji Ota 2-3-13 Azuchicho, Chuo-ku, Osaka City Osaka International Building Minolta Camera Co., Ltd. (72) Inventor Haruyuki Nagano Azuchi, Chuo-ku, Osaka-shi 2-13-13, Machiocho, Osaka International Building Minolta Camera Co., Ltd. (72) Inventor Yasushi Yasushi 2-13-13, Azuchicho, Chuo-ku, Osaka-shi Minamita Camera Co., Osaka International Building (56) References Special JP-A-2-154473 (JP, A) JP-A-59-120128 (JP, A) JP-A-63-191306 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G02B 7 / 02-7/105 G02B 23/18

Claims (5)

(57) [Claims] 1. The method according to claim 1, wherein the distance is obtained depending on the distance between the left and right pupils of the user .
A pair of left and right eyepieces driven in a direction orthogonal to the optical axis thereof in accordance with an output value of the data extraction unit, and a distance between an optical axis of the eyepiece and the pupil.
And an interpupillary distance varying means for making the distances of the optical system coincide with each other . 2. The data extracting means includes: a light projecting means for projecting light to the left and right eyes; and a left and right light detecting means for receiving light from a portion including a boundary between a black eye and a white eye and detecting the light amount. 2. The optical system adjusting device according to claim 1, wherein an interpupillary distance adjustment signal is output based on the outputs of the light amount detecting means and the left and right light amount detecting means. 3. The apparatus according to claim 2, further comprising diopter detection means for performing diopter detection based on light projected by said light projection means and reflected by the retina of the eye. Stated
Optical system adjustment device. 4. An image obtained according to the distance between the left and right pupils of the user .
A data extracting means for obtaining data, the drives a pair of right and left eyepieces on the direction perpendicular to the optical axis in accordance with the output value of the data extraction means, the light of the eyepiece
An interpupillary distance changing unit that makes an interval between axes coincide with an interval between the pupils ; a diopter detecting device; and a unit that drives a lens so as to change diopter according to an output of the diopter detecting device. An optical system adjusting device comprising: 5. The method according to claim 1, wherein:
Optical equipment equipped with an optical system adjustment device.