JP3094807U - Waterproof video camera lens focus adjustment device - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] To provide a lens focus adjusting device for a waterproof video camera. SOLUTION: Magnets 31 and 41 are fixed to adjustment seats 15 and 16 of lens sheets 11 and 12 inside a case, and magnets 30 and 40 are provided at corresponding positions outside the case. When moving an external magnet due to magnetic absorption between the inner and outer magnets,
The internal magnet is driven and moved, thereby moving the lens sheet back and forth, thereby achieving the function of lens focus adjustment. The present invention does not require the case to be opened at the time of focus adjustment, and can be operated directly outside the case, which is extremely convenient in operation.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a kind of lens focus adjusting device for a waterproof video camera, especially for a surveillance system. It is a focus adjustment device for the video camera in the system, it is not necessary to open the case, The focus can be adjusted directly from the outside of the case, and the video camera is waterproof. The present invention relates to a lens focus adjusting device for a waterproof video camera, which is formed to be maintained.

[0002]

[Prior art]

  There are two types of commercially available video camera lenses: fixed focus type and focus adjustment type. So Of these, the focusable lens 10 includes two lens sheets 11 and 12, and FIG. 2, the lens sheet 11 at the outer end of the focus-adjustable lens 10 is It is a focus lens set, and the inner end lens sheet 12 is a 1x focus lens set. Is considered to be By adjusting the front and rear positions of these two lens sheets 11 and 12, In this way, you can adjust the perspective distance and the viewing width.

[0003]   Three convex points 111 and 121 are equiangularly installed on the two lens sheets 11 and 12. (The convex points 111 and 121 are fixed by the lock method), and this focus adjustment lens 1 The arc-shaped guide grooves 13 and 14 are provided at positions corresponding to the convex points 111 and 121 of 0. The three convex points 111 and 121 move in the corresponding guide grooves 13 and 14, and The front and rear positions of the lens seats 11 and 12 in the focus adjustable lens 10 are adjusted. Apart Two sleeve type adjusting seats 15 and 16 are provided on both ends of the focus adjusting lens 10, respectively. And the corresponding lens seats on the inner walls of the two adjusting seats 15 and 16 At the positions corresponding to the convex points 111 and 121 of 11 and 12, three linear lines in the axial direction are formed. Grooves 151 and 161 are provided. When the adjusting seats 15 and 16 are turned, the groove 151 , 161 drives the lens sheets 11 and 12 to rotate. Lens sheet 1 During the rotation of 1 and 12, the arc-shaped guide grooves 13 to which the respective convex points 111 and 121 correspond, The lens sheets 11 and 12 are moved in the direction 14 to generate a back-and-forth movement action. focus For convenience of adjustment, a lever 152 is attached to each of the two adjusting seats 15 and 16. , 162 are provided for convenient operation of turning the adjusting seats 15, 16.

[0004]   It is necessary to open the case of the video camera (not shown) for the above focus adjustment operation. There, the levers 152, 162 can be exposed and operated. A waterproof video camera is used under water, so open the case underwater. Focus adjustment work cannot be performed. Therefore, currently waterproof video camera lens Cannot use a focus lens.

[0005]

[Problems to be solved by the device]

  It is an object of the present invention to provide a kind of lens focus adjusting device for a waterproof video camera. It is possible to adjust the focus of the internal lens outside the waterproof video camera, A device that allows multiple selection of the storage distance and range of images of a waterproof video camera Shall be

[0006]   It is an object of the present invention to provide a kind of lens focus adjusting device for a waterproof video camera. And it does not require opening the case of the camcorder, waterproofing the camcorder A device that can easily adjust the focus of the lens without damaging the sex And

[0007]   It is an object of the present invention to provide a kind of lens focus adjusting device for a waterproof video camera. The magnet is fixed to the adjustment seat inside the machine, and the magnet is also attached to the corresponding position outside the machine. Is provided, and the magnetic attraction of the inner and outer magnets makes it possible to move the outer magnet. The internal magnet is driven and moved, which achieves the function of lens focus adjustment. A device that can be implemented.

[0008]

[Means for Solving the Problems]

  According to the invention of claim 1, a focus adjustment type lens is provided in the video camera, and the focus adjustment lens is provided. Lens sheets that can be moved back and forth are provided at the inner and outer ends of the adjustable lens, The outermost lens sheet is the focus lens set, and the innermost lens sheet is It is a double focus lens set and separately adjusts the front and rear position of the two lens sheets. The lens focus adjustment device of the waterproof video camera with two adjustment seats used for In the   A magnet is fixed to the first adjustment seat and can be moved to a corresponding position outside the video camera A magnet is installed, and the magnets corresponding to each other inside and outside generate a magnetic absorption function, and the second adjustment seat The magnet is fixed to and the movable magnet is installed at the corresponding position outside the video camera. Waterproof video, characterized in that the inside and outside corresponding magnets generate magnetic absorption function It is used as a camera lens focus adjustment device.   The invention of claim 2 is the lens focus adjusting device for the waterproof video camera according to claim 1. , Two guide grooves are provided on the outer wall of the video camera so that two magnets can be used Of the waterproof video camera, characterized by being movable in the guide groove. Focus adjustment device.

[0009]

[Embodiment of device]

  The lens focus adjustment device of the waterproof video camera of the present invention is a video camera for surveillance system. Used for Mela. As shown in FIGS. 3 and 4, there is a focus within the video camera 20. An adjustable lens 10 is provided, and an inner end and an outer end of the focus adjustable lens 10 are provided. Lens sheets 12 and 11 that can be moved back and forth are provided. Out of which, the outer edge Lens sheet 11 is a focus lens set, and the lens sheet 12 at the inner end is Is a 1x focus lens set. Separately, two adjusting seats 15 and 16 are provided. The two lens sheets 11 and 12 are adjusted in position. like this The structure of the focusing lens 10 is well known, and is as shown in FIG. .

[0010]   Of the above, the magnet 31 is fixed to the first adjustment seat 15, and The movable magnets 30 are installed at corresponding positions of the parts, and the magnets 31 corresponding to each other inside and outside. , 30 generate magnetic attraction. The magnet 41 is fixed to the second adjusting seat 16, and the video A movable magnet 40 is installed at a corresponding position on the outside of the camera 20 so that the magnet 40 can face each other inside and outside. The corresponding magnets 41, 40 generate a magnetic absorption effect. Magnet 30 outside the video camera 20 When moving the adjustment seat 15 due to the magnetic attraction between the inner and outer magnets 31 and 30, The lens sheet 11 on the outer end of the focus adjustable lens 10 is rotated and moved back and forth. . Similarly, when moving another magnet 40 outside the video camera 20, The other adjusting seat 16 can be rotated, whereby the focusing lens 1 The lens sheet 12 at the 0 inner end can be moved back and forth. Two lens see The purpose of focus adjustment can be achieved by adjusting the positions of the switches 11 and 12.

[0011]   The case of the video camera 20 is made of a non-magnetic material such as aluminum. Plastic material is used for many of the internal parts, and The magnetic attraction of 0 only slightly extends to the corresponding magnets 31, 41. Also, two sets , To reduce the effect of mutual damping of the magnets 30, 31, 40, 41 which do not interact with each other, The two sets of magnets 30, 31, 40 and 41 are installed with a phase difference of 180 degrees.   Two guide grooves 21 and 22 are provided on the outer wall of the case of the video camera 20, The two magnets 30 and 40 move in the two guide grooves 21 and 22, respectively. The magnets 30 and 40 outside the fuselage and their corresponding magnets 31 and 41 are attracted to each other. However, the magnets 30 and 40 do not fall out. If the magnets 30 and 40 are prevented from falling off In this case, the inner edges of the guide grooves 21 and 22 are formed in a wide hole shape (not shown).

[0012]   Of the above, the positions before and after the lens sheets 11 and 12 in the focus adjustable lens 10 The positional adjustment is achieved by rotating the two adjusting seats 15 and 16. therefore The method of moving the magnets 30 and 40 outside the video camera 20 is left and right movement. if If the adjustment seat inside the video camera 20 is configured to move back and forth (not shown), The movement of the magnets 30 and 40 outside the video camera 20 is designed to move back and forth.

[0013]

[Effect of device]

  The present invention has a magnetic absorption principle and a simple structure, without opening the case of the video camera, The focus of the focusable lens inside it can be adjusted. That is, underwater waterproof video camera The lens focus of the camera can be adjusted.

[Brief description of drawings]

FIG. 1 is an exploded view of a known focus type lens.

FIG. 2 is an external view of the known focus adjustment type lens of FIG.

FIG. 3 is an external view of the present invention.

FIG. 4 is a partial sectional view of the present invention.

[Explanation of symbols]

10 focus adjustment lens 11 lens sheet 111 convex point 12 lens sheet 121 convex point 13 guide groove 14 guide groove 15 adjusting seat 151 groove 152 lever 16 adjusting seat 161 groove 162 lever 20 video camera 21 guide groove 22 guide groove 30 magnet 31 magnet 40 magnets 41 magnets

Claims (2)

[Scope of utility model registration request] 1. A focus adjustment type lens is provided in a video camera, a lens sheet movable back and forth is provided at an inner end and an outer end of the focus adjustment type lens, and a lens sheet at an outer end is a focus lens set. In the lens focus adjusting device of the waterproof video camera, the inner end lens sheet is a 1x focus lens set, and two adjusting seats used for adjusting the front and rear positions of the two lens sheets are separately provided. The magnet is fixed to the first adjustment seat, the movable magnet is installed at a corresponding position outside the video camera, the magnets corresponding to each other inside and outside generate a magnetic absorption function, and the magnet is installed on the second adjustment seat. Lens of waterproof video camera, characterized in that magnets fixed and movable at corresponding positions outside the video camera are installed, and magnets corresponding to each other inside and outside generate a magnetic absorption function. Point adjustment device. 2. The lens focus adjusting device for a waterproof video camera according to claim 1, wherein two guide grooves are provided on an outer wall of the video camera, and two magnets are movable in the corresponding guide grooves. A lens focus adjusting device for a waterproof video camera, which is characterized in that