JPH02197810A - Periscope device - Google Patents

Abstract

PURPOSE:To shorten the consumption time required for collection of target information by housing plural video image pickup parts corresponding to plural photodetecting optical systems into a lens barrel and taking images as video information into an eyepiece part. CONSTITUTION:The entire visual field 360 deg.C on the sea surface is covered by 4 sets of objective glasses 31 and the video image pickup parts 32 disposed axisymmetrically at equal intervals at the front end of the lens barrel 35. Targets, such as aircrafts and ships, existing in 4 pieces of the visual field covering regions 202 are captured by any of the video image pickup parts 32 via the objective glasses 31. The lens barrel 35 does not require swivel and is connected to the inside of a submarine by an output cable 34 while the hydraulic pressure resistant state is maintained by waterproof glands 351 and 361 which are much smaller than the conventional hydraulic pressure resistant structure 21; therefore, the lens barrel is held fixed and installed on the outside of a pressure resistant hull 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a periscope device, and more particularly to a periscope device installed on a submarine.

[Conventional technology]

Periscope devices are well known, which are installed on submarines and allow the user to see the target with the naked eye from inside the ship. FIG. 3 is a sectional view showing the operating state of a conventional periscope device, and shows the periscope device 1.
In FIG. 3, the objective glass 11, objective mirror 12, eyepiece 13, and eyepiece glass 14 are arranged in a lens barrel 151 to form an optical system.
The target scene is provided as a real image 103.

This periscope device 1 is attached to a pressure-resistant hull 2 of a submarine in close contact with a water-pressure-resistant structure 21 so that it can slide freely.

Further, the field of view of such a periscope device is generally about 326 t# at the lowest magnification.

FIG. 4 is an enlarged front view of the real image 103 shown in FIG. As shown in FIG. 4, the visual field coverage area 102 is approximately 32' at the low magnification L5, which provides the widest field of view, and approximately 8° at the maximum magnification, L6.

[Problem to be solved by the invention]

The field of view of the real image information returned by the objective mirror used in the above-mentioned conventional periscope device depends on the magnification of the image information taken out at the eyepiece, but generally the field of view at the lowest magnification is 32 degrees a degree. It is.

In addition, the actual GR information is guided into the pressure hull through the objective, lens barrel, and eyepiece, and in order to obtain the entire image information covering the entire field of view, it is necessary to use the objective of the periscope device. It is necessary to turn the aircraft in all directions around it, and repeat the same turning operation in each of the upper airspace, hollow airspace, and lower airspace.

For this reason, submarines must search for targets that pose a threat to their own ship, search for targets they intend to attack, search for targets to prevent navigational collisions, and operate the periscope device to carry out this confirmation. In order to achieve this, it is necessary to make turns of about 15 seconds at intervals, even when the amount of information on the target is extremely sacrificed, such as when searching for and confirming a threat target at close range, and even when operated by a highly skilled operator. Rounding, which requires repeating the search about 10 times, is discovered by the person who is the target of the threat,
The problem is that there is a risk of being attacked.

Furthermore, as a matter of course, there is a problem in that searches and confirmations with a large amount of information usually require three times as much time as in this case.

The purpose of the present invention is to solve the above-mentioned problems by significantly shortening the time the tip of the periscope is exposed above the sea surface.
To provide a periscope device that significantly reduces the chance of the periscope device being discovered by a threatening object.

[Means to solve the problem]

The periscope device of the present invention divides a spatial region above the sea surface into n divided spatial regions having shared adjacent parts, each of which receives light and outputs a video of a covered scene as a visual field covering area. an imaging section, n objective glasses that ensure a viewing area for the n video imaging sections and form a light receiving optical system together with the n video imaging sections; A lens barrel with a light-receiving optical system consisting of an objective glass installed at its tip and fixedly disposed outside the pressure-resistant hull of the submarine, receives n video outputs from the n video imaging units, and multiplexes them. A video output unit disposed in the lens barrel, which is synthesized or branched independently and outputs the output, and the output of the video output unit is connected to the lens barrel while maintaining the pressure resistant hull in a water pressure resistant state. an output cable that penetrates and transmits into the submarine; a video input section that branches and outputs the video output provided via the output cable in correspondence with the outputs of the n video imaging sections; and n video display sections that receive the output and display it with light.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a sectional view showing the operating state of an embodiment of the present invention. The embodiment shown in FIG. 1 is based on an example in which a spatial area on the sea surface is divided into four parts including common parts, and four sets of light-receiving optical systems formed by an objective lens and a video imaging unit are prepared. , each light-receiving optical system shares a three-dimensional field of view of 96 degrees, and each of the receiving optical systems has a distance of 6.
It covers the entire spatial area of 360° while sharing an overlapping area of 360°.

Next, the configuration of the embodiment shown in FIG. 1 will be described.

The periscope device 1 of the embodiment shown in FIG. 1 divides a spatial region above the sea surface into four with s''-f shared adjacent parts, each of which is used as a visual field coverage area for light reception, and is used to cover a covered scene. Four video imaging units 32 that obtain video output, four objective glasses 31 that secure the field of view of the four video imaging units 32 and form a light receiving optical system together with the video imaging units 32, and four video imaging units 32. A light-receiving optical system consisting of an imaging section 32 and four objective glasses 31 is arranged at the tip, and a lens barrel 35 is fixedly arranged outside the pressure-resistant hull 2 of the submarine, and four video imaging sections 32 are used. The video output unit 33 receives the video outputs from the video output units 33 and multiplexes and combines them or branches them out and outputs them. An output cable 34 that penetrates the pressure-resistant hull 2 while maintaining water pressure resistance with waterproof glands 351 and 361 and transmits the video into the submarine, and four video imaging units that transmit the video output provided via the output cable 34. 32, and four video display sections 37 that receive and display the output of the video input section 36. In Figure 1, two objective glasses 31 and two video imaging units 32 are shown for the purpose of simplifying the drawing display, but in reality, two objective glasses 31 and two video imaging units 32 are shown in the direction perpendicular to the plane of the paper, which is orthogonal to each of these two. A cathedral objective glass and a video imaging unit are installed.

Next, the operation of this embodiment will be explained.

At the tip of the lens barrel 35, four pairs of objective glasses 31 and a video imaging unit 32 arranged axially symmetrically and at equal intervals cover the entire field of view of 360° above the sea surface, and the aircraft exists in four visual field coverage areas 202. , a ship, or the like is captured by one of the video imaging units 32 via the objective glass 31 .

The lens barrel 35 does not need to rotate, and is connected to the inside of the submarine by the output cable 34 while being maintained in a water pressure resistant state by the waterproof glands 351 and 361, which are significantly smaller than the conventional water pressure resistant structure 21. , it is fixedly installed outside the pressure hull 2. Furthermore, although the lens barrel 35 has a cylindrical structure in this embodiment, it may have any shape as long as it can ensure a field of view coverage of 360° by the objective glass 31 and the video imaging section 32 described above.

The outputs of the four imaging units 32 are obtained as digital video outputs, and are multiplexed and synthesized by the video output unit 33.

The video output section 33 supplies the multiplexed signal thus obtained to a video input section 36 disposed inside the pressure-resistant hull using an output cable 34.

The output cable 34 is designed to maintain a water pressure resistant state by using waterproof glands 351 and 361, respectively, when passing through the lens barrel 35 and the pressure resistant hull 2.

The video input unit 36 demultiplexes the multiplexed signals and
The video outputs of the respective video image pickup units 32 are restored and supplied to the video display unit 37 to obtain the image shown in FIG.

The image obtained in this way is 96° at 15x magnification,
When the magnification is 6 times, the field of view coverage area 202 is 24°.

ζ Compared to conventional periscope devices, the lens barrel of this embodiment does not need to be rotated to cover the entire field of view 360Ij, but is required to be raised and lowered to reach the water surface. The device is simple and can be easily operated.

Furthermore, since it holds video information converted into electrical signals, it is also possible to easily record and reproduce the recording.

Note that the present invention is not limited to the first embodiment described above, and various implementations are possible within the scope of the gist of the present invention.

For example, in this embodiment, the output of the video imaging section uses a digital format, but it is clear that it can be easily implemented by separating and outputting this as it is in the video output section 33 as an analog format. In this embodiment, the search target space is divided into four, but it is clear that this can be arbitrarily set depending on the light-receiving field of view of the video imaging unit.

〔Effect of the invention〕

As explained above, according to the present invention, in the periscope device mounted on the diving ff1J, the field of view of the optical device part is equipped with a plurality of light receiving optical systems using wide-angle lenses, and the field of view is adjusted to correspond to the plurality of light receiving optical systems. By storing multiple video imaging units in the lens barrel, capturing them as video information into the eyepiece, and extracting them as video information on multiple video display units, the time required to collect target information can be significantly reduced. , and has the effect of greatly reducing the chances of being detected and attacked by the threat target.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an operational state of an embodiment of the periscope device of the present invention, Fig. 2 is a plan view showing an example of a visual field image captured in the embodiment of Fig. 1, and Fig. 3 is a conventional periscope device. FIG. 4 is a cross-sectional view showing the operating state of the device, and FIG. 4 is a plan view showing an example of the real image 103 captured by the periscope device of FIG. 1.3...Periscope device, 2...Pressure hull, 11...Objective glass, 12...Objective mirror, 13...Touching Glasses, 14... Eyepiece glass, 15... Lens barrel, 21... Water pressure resistant structure, 31... Objective glass, 32...
Video camera department, 33...Video output section, 34.
... Output cable, 35 ... Lens tube, 36
...Video input section, 37...Video display section, 101.2C11...Optical axis, 102.2
02...Visual field coverage area, 103...Real image,
351.361... Waterproof ground. Agent Patent Attorney Otode Uchihara

Claims (1)

[Claims] n video imaging units that obtain a video output of a covered scene by using each of the divided spatial regions obtained by dividing a spatial region on the sea surface into n divided spatial regions having mutually shared adjacent portions as visual field covering areas in light reception; Ensure the field of view of the imaging unit and
n objective glasses forming a light receiving optical system together with the video imaging units, and a light receiving optical system consisting of the n video imaging units and n objective glasses disposed at the tip of the submarine's pressure-resistant hull. a lens barrel that is fixedly arranged to be able to rise outside the n;
A video output section that receives n video outputs from the video imaging sections and multiplexes and combines them or branches them out independently and outputs them, and is disposed within the lens barrel, and the output of the video output section. an output cable that penetrates the lens barrel and the pressure-resistant hull while maintaining water pressure resistance and transmits the video into the submarine; and an output cable that transmits the video output provided through the output cable to the n video imaging units. 1. A periscope device comprising: a video input section that outputs branches in accordance with the video input section; and n video display sections that receive and display outputs from the video input section.