JP3372622B2 - Observation optical equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image blur correction function for detecting the amount of shake of an optical device and deflecting the optical axis so as to always hold the optical image of the optical device at a constant position based on the detected output. The present invention relates to an observation optical device such as a telescope and binoculars.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for eliminating image blur of an observation optical instrument, an image in which a gyroscope is connected to an erecting prism supported by a gimbal as described in JP-A-50-5058. Binoculars with stabilizers are known. Also, as a conventional technique regarding the arrangement of batteries,
Japanese Unexamined Patent Publication No. 3-264908 and Japanese Utility Model Laid-Open No. 55-12800.
What is described in 8 etc. is known.

[0003]

However, under the present circumstances, an apparatus for driving and controlling the correction optical system to correct the image blur of the optical apparatus requires a relatively large circuit board and a battery, so that the optical apparatus becomes large in size. There is a problem.

The present invention is intended to solve the above-mentioned conventional problems, and it is an object of the present invention to provide an observing optical instrument capable of obtaining a good image stable state and effectively reducing the size of the instrument. Has an aim.

[0005]

An optical instrument for observation according to the present invention is for achieving the above-mentioned object, and comprises a pair of optical instruments arranged in parallel.
Objective optical system and optical image formed by each objective optical system
A pair of correction optics to correct the shake of
A pair of erecting pre-reflectors that reflect the optical image from them
And the optical image from each erecting prism to the observation side.
A pair of eyepiece optical systems, the objective optical system and the correction optical system
An optical machine accommodating the erecting prism and the eyepiece optical system.
Device body and shake detection hand for detecting shake of the optical device body
Stage and an actuator for driving the pair of correction optical systems
And the actuation based on the detection output of the shake detection means.
Control means for controlling the operation of the data, and the control means
A circuit board on which an electric circuit is mounted, the circuit board, and
Equipped with a battery that supplies power to the actuator
The battery and the circuit board are inside the optical device body.
Are disposed between the pair of objective optical systems .

Further, according to the present invention, between the pair of objective optical systems,
The circuit board is arranged so as to be orthogonal to the optical axis, and the left and right end portions or both end portions of this circuit board are provided in a board shape that roughly follows the shape of the light beam so as not to block light rays, Another feature is that the distance between the left and right optical axes can be minimized while securing the substrate area of. It should be noted that it is necessary to move the optical image from the pair of objective optical systems.
Erect image of paired correction optical system and optical image from each correction optical system
If you have a pair of erecting prisms that reflect as
Stands upright with the objective lens in the optical axis direction.
It may be located between the prisms.

[0007]

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

FIG. 1 is a perspective view showing binoculars which is an optical apparatus according to an embodiment of the present invention, FIG. 2 is a plan sectional view of FIG. 1, and FIG. 3 is a front sectional view of FIG. FIG. 7 is a perspective view of FIG. In these figures, 100 is a binocular body, 300
R and 300L are a pair of eyepiece prism unit main bodies provided in the binoculars main body 100.

The binocular body 100 is composed of an upper shell 102 and a lower shell 104. The lower shell 104 is provided with a pair (R for right eye, L for left eye) of objective lens units 106R and 106L on one end side which is the objective side thereof, and the other end side which is the eyepiece side described above. A pair of eyepiece prism unit main bodies 300R and 300L are arranged. The objective lens units 106R and 106L are the objective lens barrel 16 as shown in the enlarged views of the main parts of FIGS.
This objective lens barrel 16 has 2R and 162L.
Objective lenses LR1 and LL1 are held at 2R and 162L, respectively. Guide lens barrels 164R and 164L are held on the eyepiece sides of the objective lens barrels 162R and 162L, and the focus lens L is held in the guide lens barrels 164R and 164L.
Focus lens barrel 166 holding R2 and LL2
R and 166L are housed. Objective lens barrel 162
R, 162L flange guide barrel 164R, 164
A pair of guide bars 168 are provided between the L protrusions.
a, 168b are provided, the guide bars 168a, 168a are inserted into the sleeves 166a, 166a of the focus lens barrels 166R, 166R, and the U-shaped protrusions 166b, 166L of the focus lens barrels 166R, 166L.
Guide bars 168b and 168b are inserted through b. Thereby, the focus lens barrels 166R, 166
L is movably supported in the optical axis direction.

A diopter / focus adjusting mechanism 108 is provided between the objective lens units 106R and 106L. As shown in FIGS. 3 and 4, the diopter / focus adjusting mechanism 108 is housed in the adjusting mechanism housing portion 122 of the upper shell 102 and is held by the upper shell 102.
Has 80. A focus guide shaft 182 and a rotation restricting shaft 184 are fixed to the guide support plate 180. The focus guide shaft 182 includes a sleeve 186a of a focus lens driving plate 186R that drives the right-eye side focus lens barrel 166R in the optical axis direction, and a focus lens that drives the left-eye side focus lens barrel 166L in the optical axis direction. It is inserted into the sleeve 187a of the drive plate 187L. The rotation restricting shaft 184 is inserted through the rotation restricting hole 186b of the focus lens drive plate 186R and the rotation restricting hole 187b of the focus lens drive plate 187L. The focus lens driving plate 186R is provided with a screw hole 186c for focus feeding. The screw portion 188a of the diopter adjustment shaft 188 is meshed with the screw hole 186c, and the screw portion 188 is provided at one end of the screw portion 188a.
A connecting shaft portion 188b having a diameter smaller than that of a is formed. A slide shaft portion 188c having a rotation restricting plane portion is formed at the other end of the screw portion 188a. Semicircular support portion 122a of the adjustment mechanism housing portion 122 of the upper shell 102
A diopter adjusting ring 189 is rotatably supported at a fixed position, and a slide shaft portion 188c of a diopter adjusting shaft 188 is slidably inserted in a slide hole 189a of the diopter adjusting ring 189 in the axial direction. . A drive engagement protrusion 186d is formed on the focus lens drive plate 186R, and this protrusion 186d is a focus lens barrel 166R.
Is engaged with an engagement groove 166c formed in the sleeve 166a.

Further, U-shaped bearing plate portions 187d and 187e are formed on the focus lens drive plate 187L. The coupling shaft portion 188b of the diopter adjustment shaft 188 is inserted into the bearing plate portion 187d between the end surface of the screw hole 186c of the drive plate 186R and the bearing plate portion 187d via the retaining ring 190 and the pressing spring 191. . Bearing plate part 18
The focus screw shaft 192 is fixed to 7e in a non-rotating state. A focus adjustment ring 193 is rotatably supported at a fixed position on a semicircular support portion 122b of the adjustment mechanism housing portion 122 of the upper shell 102, and a focus screw shaft 19 is provided in a screw hole 193a of the focus adjustment ring 193.
2 mesh. A drive engagement protrusion 187c is formed on the focus lens drive plate 187L.
87c is the sleeve 16 of the focus lens barrel 166L.
It is engaged with an engagement groove 166c formed in 6a.

As a result, the focus adjustment ring 193
When is rotated, the focus screw shaft 192 is moved in the optical axis direction, and the focus lens drive plate 187L is moved in the optical axis direction, which causes the focus lens barrel 166L.
Will be moved. At the same time, the diopter adjustment shaft 188 supported by the bearing plate portion 187d and pressed by the pressing spring 191.
Is moved in the optical axis direction, and the focus lens driving plate 186R screw-connected is moved to move the focus lens barrel 16
6R is moved. At this time, the diopter adjustment ring 189 does not rotate, and the slide shaft portion 188c of the adjustment shaft 188 slides in the slide hole 189a. Focus adjustment is performed by moving these focus lens barrels 166R and 166L. Further, when the diopter adjustment ring 189 is rotated, the diopter adjustment shaft 188 that is slid and connected is rotated at a fixed position, and this rotation moves the focus feed screw hole 186c meshed with the screw portion 188a in the optical axis direction. As a result, the focus lens barrel 16 on the right eye side
6R is moved and diopter adjustment is performed.

Each objective lens unit 1 of the lower shell 104
06R, 106L and eyepiece prism unit main body 300
Variable apex prism (VAP) between R and 300L
The units 202 and 203 are arranged on a unit support plate 142 formed on the lower shell 104. Light-shielding cylinders 204, 204 are fixed to the object side of the main bodies 202a, 203a of the VAP units 202, 203. Body 202
VAP elements 205 and 205 are housed in a and 203a. As shown in FIG. 5, in the VAP elements 205, 205, two transparent plates are liquid-tightly connected by a bellows, and a transparent liquid having a predetermined refractive index is contained therein. Each of the VAP elements 205 has a holding frame 207.
Coil portions 208a, b and main bodies 202a, 203a which are held by a and b and are formed on the holding frames 207a, b.
The magnet portions 209 and 209 formed in the above constitute an electromagnetic actuator, and by driving thereof, the transparent plates on the object side of the left and right VAP elements 205, 205 are tilted in the yaw (horizontal) direction, and the transparent plates on the eyepiece side are pitched. Tilted in the (vertical) direction. This causes the light beam passing through the VAP element to be deflected. A shake detection sensor 210 for detecting shake in the vertical direction of the binoculars body 100 is fixed to the main body 202a, and a shake detection sensor 211 for detecting shake in the horizontal direction of the binoculars main body 100 is fixed to the main body 203a.

A lock mechanism 220 supported by a unit support plate 142 is arranged between the VAP units 202 and 203, as shown in FIGS. The lock mechanism 220 has an interlocking arm 221, and the center of the interlocking arm 221 is rotatably attached to the unit support plate 142. Lock arms 222 are rotatably provided on the support plate 142 at both ends of the interlocking arm 221, and the engaging groove 2 at the end of the interlocking arm 221 is provided.
21a, 221a and the engagement protrusion 22 of the lock arm 222
2a is freely engageable. At one end of the lock arm 222, the VAP element 205, a holding frame 207a of the 205,
Conical lock grooves 222b and 222b that engage the lock pins 212 and 212 formed on 207b are formed. At the other end of the lock arm 222, a spring stop protrusion 22 is provided.
2c is provided, one end of a spring 223 wound around the rotation shaft of the lock arm 222 is brought into contact with the protrusion 222c, and the lock groove 222b is in a direction to engage the lock pin 212 of the holding frames 207a, 207b. Being energized. Further, a shake correction operation lever 224 having one end rotatably attached to the upper shell 102 is disposed on the lock arm 222 on the VAP unit 203 side on the left eye side. A spring 225 is wound around a rotary shaft at one end of the operation lever 224, and is pressed in a direction in which it comes into contact with the upper shell 102 by the urging force of the spring 225. The surface of the other end of the operation lever 224 facing the VAP unit 203 is in contact with the lock arm 222, and when the operation lever 224 is pressed, the lock groove 222b of the lock arm 222 and the lock pin 212 of the VAP element 205 are provided. Is formed with an operation protrusion 224a that acts so as to release the engagement. Further, a switch operating protrusion 224b is formed in the vicinity of the operating protrusion 224a of the operating lever 224, and the protrusion 224b operates when the operating lever 224 is pressed.
4 and the VAP element 205 are arranged to operate a shake correction operation switch 226.

Upper shell 102 and lower shell 104
On the eyepiece side of the eyepiece prism unit holding plate 230
And holding holes 230a and 230a for holding the eyepiece prism unit main bodies 300R and 300L rotatably are formed in the holding plate 230. The eyepiece prism unit body 30 is provided in the holding holes 230a and 230a.
The cylindrical connection lens barrels 302 and 302 of 0R and 300L are inserted, and the shell 10 is attached to the connection lens barrels 302 and 302.
Attachment rings 304, 304 are rotatably attached by screws from the sides 2, 103 via a holding plate 230. Further, interlocking gear plates 306, 306 which are fan-shaped and mesh with each other are fixed to the attachment rings 304, 304, and when the eyepiece prism unit main bodies 300R, 300L are rotated, they are rotated at the same angle with respect to the binoculars main body 100. The pupil distance can be adjusted.

Eyepiece prism unit main body 300R, 30
0L is the above-mentioned connection lens barrel 302 and prism housing lens barrel 30
8 and an eyepiece tube 310. The prism housing barrel 308 houses a first prism 312 that vertically inverts the optical image that has passed through the VAP units 202 and 203, and a second prism 314 that horizontally inverts the optical image from the first prism 312. Is held. Further, eyepiece lenses ER and EL are housed and held in the eyepiece tube 310.

Further, as shown in FIG. 3, the binocular body 1
Between the objective lens units 106R and 106R in 00,
The battery accommodating portion 110 is formed, and the accommodating portion 11
In 0, a charging battery (not shown) for supplying driving power to the VAP units 202 and 203 is housed. A push-out spring 1 for taking out the battery is provided in the accommodating portion 110.
A connector 114 connected to the contact point of the battery 12 and the battery and an opening / closing lid 116 for the battery outlet are provided.

Further, as shown in FIG. 3, the upper shell 10
2, a substrate housing portion 102a is formed, and a control circuit board 410 that controls driving of the VAP units 202 and 203 is housed and held in the substrate housing portion 102a. The battery connector 114 is provided on the control circuit board 410.
A lead wire (not shown) for supplying power from is connected. Further, the shake detection signals from the shake detection sensors 210 and 211 of the VAP units 202 and 203 are input to the control circuit board 410, and the VAP units 202 and 203 are driven based on these signals to drive the VAP elements 205 and 205.
Is controlled to tilt so that the light beam to be observed is tilted in the direction in which the shake is corrected.

A shell cover 102b for covering the housing portion is provided in the substrate housing portion 102a of the upper shell 102. As shown in FIG. 1, the shell cover 102b has a shake correction mode changeover switch 412, a battery check button 414, and a battery level indicator LED 416.
And are arranged and are electrically connected to the control circuit board 410 described above. Shake correction mode selector switch 41
2 has an OFF mode, a normal shake correction mode, and a panning state shake correction mode. When the battery check button 414 is pressed, the charging battery 400
Is checked by the control circuit board 410, and a display according to the detected battery remaining amount is performed by the battery remaining amount display LED 416.

FIG. 7 is a perspective view showing the arrangement of the control circuit board 410 and the charging battery accommodating portion 110, which is efficiently arranged between the pair of objective lens units 106R and 106L.

Next, the operation and operation of the binoculars of the above embodiment will be described.

First, the observer holds the binocular body 100 and turns the eyepiece prism unit bodies 300R and 300L inward or outward to adjust the pupil distance. Next, the observer rotates the focus adjustment ring 193 of the diopter / focus adjustment mechanism 108 with the right eye closed and the left eye open to perform focusing on the left eye side. Then, with the left eye closed and the right eye open, the diopter adjustment ring 189 of the diopter / focus adjustment mechanism 108 is rotated to perform focusing on the right eye side. In this state, the left-right focusing and the diopter adjustment have been performed, so that the observer can perform good observation through the binoculars.

Further, with the shake correction mode changeover switch 412 of the binoculars body 100 set to the shake correction mode in the normal or panning state, the shake correction operation lever 2
When pressing 24, the VAP unit 203 on the left eye side
The lock arm 222 on the side is pressed and the shake correction operation switch 226 is pressed to be in the ON state. As a result, the interlocking arm 221 is operated and each lock arm 22
The engagement between the lock groove 222b of No. 2 and the lock pin 212 of the VAP element 205 is released, and the VAP units 202 and 203 are in the shake correction state, and the shake detection sensor 2
VAP elements 205, 20 based on the outputs of 10, 211
It is possible to observe an image in which the image blurring due to camera shake has been corrected by tilting the lens 5. When the pressing of the shake correction operation lever 224 is released from this shake correction state, the lock arm 222 and the operation lever 224 are returned by the urging force of the spring 223 of the lock arm 222 and the spring 225 of the operation lever 224, and the lock groove 222b and the lock pin 222. 212 is engaged and the VAP units 202 and 203 are locked, and the shake correction operation switch 226 is turned off, whereby power supply to the VAP units 202 and 203 is stopped. In this state, VAP unit 2
The transparent plates 205a and 205a of 02 and 203 are held in parallel by the locking of the locking mechanism 220.

The lock action timing of the lock mechanism 220 and the shake correction operation switch 226 in the pressing operation and the pressing release operation of the shake correction operation lever 224.
As for the ON and OFF timings, the lock mechanism 220 is unlocked when pressed as described above, the shake correction operation switch 226 is subsequently turned ON, and the shake correction operation switch 226 is turned OFF when the press is released. Further, the lock mechanism 220 is locked. Alternatively, the lock of the lock mechanism 220 and the ON / OFF switching timing of the shake correction operation switch 226 may be the same, and when the operation lever 224 is pressed, the switch 226 is first turned ON and the VAP unit 202,
The lock mechanism 220 is then unlocked while the parallel state of the VAP element 205 of 203 is maintained, and then VA
The P units 202 and 203 enter the shake correction state.
Further, when the pressing of the operation lever 224 is released, the locking by the locking mechanism 220 may be activated after the parallel state of the VAP elements 205, 205 of the VAP units 202, 203 is maintained. In this case, it is preferable to use, for example, a two-step switch as the shake correction operation switch 226.

FIG. 8 shows another embodiment different from the above-mentioned embodiment.
The control circuit board 510 is arranged side by side next to the charging battery accommodating portion 110.

FIG. 9 is a perspective view showing a further embodiment different from the above-mentioned embodiment, in which the control circuit board 610 is arranged behind the charging battery housing 110 so as to be orthogonal to the optical axis of the objective lens. ing. In the embodiment described with reference to FIGS. 1 to 3, the shake sensors 210 and 211 are connected to the control circuit board 41.
Although it is arranged separately from 0, this is because the shake sensor needs to be arranged so as to be orthogonal to the optical axis. On the contrary, in the present embodiment shown in FIG. 9, the shake sensor is shaken on the control circuit board 610. Sensors can be placed. The control circuit board 610 is provided on both sides of the board in a semicircular shape substantially along the light flux so as not to block the optical axis.

As described above, in the binoculars which are the optical instruments for observation of the above-described embodiment, a good image stable state can be obtained by the variable apex angle prism, and the binoculars do not become so large as compared with ordinary binoculars. The device can be configured.

[0028]

As described above, the observing optical apparatus of the present invention can obtain a good image stable state and effectively reduce the size of the apparatus.

[0029]

That is, without increasing the size of the main body of the optical device ,
It is possible to incorporate a circuit board and a battery that perform shake correction control .

[Brief description of drawings]

FIG. 1 is a perspective view showing binoculars according to an embodiment of the present invention.

FIG. 2 is a plan sectional view of FIG.

FIG. 3 is a front sectional view of FIG.

FIG. 4 is a partial plan cross-sectional view showing the diopter / focus adjustment mechanism of FIGS. 1 and 2.

FIG. 5 is a perspective view showing a lock mechanism and a VAP unit.

FIG. 6 is a front view showing a lock mechanism.

7 is a perspective perspective view of FIG.

FIG. 8 is a perspective view showing the binoculars according to the second embodiment of the present invention.

FIG. 9 is a perspective view showing the binoculars according to the third embodiment of the present invention.

[Explanation of symbols]

100 ... Binoculars body 110 ... Charging battery accommodating portion 106R, L ... Objective lens unit 202, 203 ...
VAP unit 220 ... Lock mechanism 224 ... Shake correction operation levers 300R, L ... Eyepiece prism unit 400 ... Charge battery 410 ... Control circuit board 412 ... Shake correction mode changeover switch 510 ... Control circuit board 610 ... Control circuit board

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsumi Azusa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (56) Reference JP-A-55-98718 (JP, A) JP-A-SHO 54-23554 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G02B 27/64 G02B 23/00

Claims (3)

(57) [Claims] 1. A pair of objective optical systems arranged in parallel, a pair of correction optical systems for correcting shake of an optical image formed by each objective optical system , and an optical image from each correction optical system as an erect image. A pair of erecting prisms that reflect the optical image from each erecting prism, a pair of eyepiece optical systems that guide the optical image from each erecting prism to the observation side, the objective optical system, the correction optical system, the erecting prism, and the eyepiece optical system A main body of an optical device accommodating the optical device, a shake detecting means for detecting a shake of the main body of the optical device, and the pair of correction lights.
An actuator that drives an academic system, and controls the operation of the actuator based on the detection output of the shake detection means.
The control means , a circuit board on which an electric circuit including the control means is mounted, and a battery for supplying electric power to the circuit board and the actuator are provided, and the battery and the circuit board are provided in a pair within the optical device body. An optical instrument for observation, which is arranged between objective optical systems. Wherein said circuit board is arranged so as to form a positional relationship substantially perpendicular to the optical axis between the pair of objective optical system
Tei Rutotomoni, one or both sides of the circuit board, the objective optical system for observation optical apparatus according to claim 1, characterized in that it is formed so as not to block the light beam. 3. The circuit board, in the optical axis direction,
The observation optical apparatus according to claim 2, wherein the observation optical apparatus is located between the objective lens and the erecting prism.