WO2020111319A1

WO2020111319A1 - Foldable telescope using hoe

Info

Publication number: WO2020111319A1
Application number: PCT/KR2018/014902
Authority: WO
Inventors: 홍성희; 강훈종; 홍지수; 김영민
Original assignee: 전자부품연구원
Priority date: 2018-11-29
Filing date: 2018-11-29
Publication date: 2020-06-04
Also published as: KR102475169B1; KR20200064347A

Abstract

To solve a problem of mobility degradation and consequent inconvenient portability due to volume and weight, provided is a foldable telescope using a holographic optical element (HOE) instead of a glass lens. A telescope according to an embodiment of the present invention comprises: a barrel forming the body of the telescope; and a first holographic optical element (HOE) installed at a first point of the barrel. The present invention replaces a glass lens by an HOE and replaces a barrel having a robust structure by hardboard, and thus reduces the weight of a telescope and enables free assembling/disassembling thereof, thereby improving mobility and thus enhancing portability for a user.

Description

Foldable telescope using HOE

The present invention relates to a telescope, and more particularly, to a foldable telescope to which the hologram technology is applied to improve the problem of mobility inconvenience due to volume and weight.

1 is a conventional conventional telescope. As shown, the existing telescope is fixed in a specific shape to have a constant volume.

In addition, since this telescope uses a glass lens, the weight of the glass lens itself as well as the weight of the tube for supporting it are considerable, and as a result, the telescope is rather heavy.

As such, the existing telescope is inconvenient to carry due to its mobility due to volume and weight problems. Therefore, it is required to find a way to solve this and improve mobility.

The present invention has been devised to solve the above problems, and an object of the present invention is to solve the problem of discomfort in portability due to mobility due to volume and weight, and instead of a glass lens, HOE (Holographic Optical Element) ) Using a foldable telescope.

According to an embodiment of the present invention for achieving the above object, the telescope is a barrel that forms the body of the telescope; And a first Holographic Optical Element (HOE) installed at a first point of the tube.

The telescope according to the present invention may further include a second HOE installed at a second point of the tube.

The first HOE and the second HOE may be of a film type.

The tube, the first HOE and the second HOE can be freely assembled and disassembled.

The tube, the first HOE and the second HOE may be portable by being stacked in a disassembled state.

The barrel can be implemented by rolling a flexible flat material in a round shape.

The flexible flat material may be a hardboard paper.

On the other hand, according to another embodiment of the present invention, the telescope is a barrel that forms the body of the telescope; A first holographic optical element (HOE) installed at the objective lens position of the telescope; And a second HOE installed at an alternative lens position of the telescope.

As described above, according to the embodiments of the present invention, the glass lens is replaced by the HOE, and the rigid structure of the barrel is replaced by a hardboard, thereby making the telescope lighter and free of assembly/disassembly to improve mobility and to carry the user. You can improve your sex.

1 is a conventional conventional telescope,

2 is a view showing a foldable telescope according to an embodiment of the present invention,

3 is a disassembled view of the foldable telescope according to the embodiment of the present invention shown in FIG. 2, and

4 is a view showing a foldable telescope according to another embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

2 is a view showing a foldable telescope according to an embodiment of the present invention. The foldable telescope shown in FIG. 2 is assembled.

2, the foldable telescope according to an embodiment of the present invention includes a flexible tube 110, an objective HOE (Holographic Optical Element) 120, and an alternative HOE 130, as shown in FIG. do.

The objective HOE 120 is a structure that replaces the objective lens made of glass in the existing telescope. And, the alternative HOE 130 is a configuration that replaces an alternative lens made of glass in an existing telescope.

HOE is a device capable of enlarging and reducing an object by diffracting light like a lens by finely recording a hologram fringe pattern in a medium such as a photopolymer or silver halide and changing the optical path of light.

Accordingly, existing glass lenses may be replaced with HOEs 120 and 130. Since HOE is a thin medium and is a film type, it is very light and thin.

On the other hand, in order to eliminate distortion and chromatic aberration, the glass lens used in the existing telescope used a lens group consisting of several glass lenses, and HOE can be manufactured to eliminate distortion and chromaticity with only one pair.

The flexible tube 110 can be implemented with a flexible material that can maintain the shape of the tube when it is rolled up. For example, it is possible to implement the flexible tube 110 by rolling a hard cardboard or corrugated cardboard.

Since the glass lenses used in the existing telescopes were replaced by HOEs 120 and 130, which are light and thin elements, the rigid and heavy structured barrels in the existing telescopes are made of the flexible barrel 110, which is implemented with a light and flexible material. It can be replaced.

The disassembled state of the foldable telescope according to the embodiment of the present invention shown in FIG. 2 is illustrated in FIG. 3.

When disassembling and disassembling the foldable telescope according to the embodiment of the present invention, as shown in FIG. 3, the flexible tube 110 that was curled to accommodate the

HOEs

120 and 130 is in a flat state.

In addition, as described above, HOEs 120 and 130 are also thin media. Accordingly, even if the components of the disassembled foldable telescope are stacked, that is, even when

HOEs

120 and 130 are placed on the flexible tube 110, the height (thickness) is very low.

If the flexible tube 110 is implemented in A4 size, the assembled disassembled flexible tube 110 and

HOEs

120 and 130 can be stored and carried in a commonly used A4 paper holder.

Meanwhile, as illustrated in FIG. 3,

guide grooves

140 and 150 are formed on a surface of the flexible tube 110 that forms the inside of the tube.

The guide groove 140 is a groove formed to guide the location where the objective HOE 120 is mounted, and the guide groove 150 is a groove formed to guide the location where the alternative HOE 130 is mounted.

4 is a view showing a foldable telescope according to another embodiment of the present invention. In the foldable telescope according to the embodiment of the present invention, as shown in FIG. 4, Velcro

tapes

160 and 170 are attached to both ends of the flexible tube 110.

Specifically, the Velcro tape 160 is attached to the surface forming the inside of the tube in the flexible tube 110, and the Velcro tape 170 detachable from the Velcro tape 160 forms the outside of the tube in the flexible tube 110. It is attached to the surface.

The

velcro tapes

160 and 170 correspond to a configuration for maintaining the curled state so that the flexible tube 110 can maintain the shape of the tube.

The flexible barrel 110 may be maintained using a structure other than the Velcro

tapes

160 and 170 to maintain the barrel shape. For example, it is possible to implement equivalent functions using structures such as straps, rings, and buttons.

So far, preferred embodiments of the foldable telescope using HOE have been described in detail.

In the above embodiment, the glass lens is replaced with a thin and light HOE, and the rigid structure of the barrel is replaced with a thin and light flexible material such as a hardboard, making the telescope lighter and free to assemble/disassemble to improve mobility and improve user mobility. Castle was improved.

In addition, although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications can be implemented by those skilled in the art, and these modifications should not be individually understood from the technical idea or prospect of the present invention.

Claims

A barrel forming the body of a telescope; And

A first telescope, characterized in that it comprises; a first HOE (Holographic Optical Element) installed at a first point of the tube.
The method according to claim 1,

Telescope, characterized in that it further comprises; a second HOE installed at a second point of the tube.
The method according to claim 2,

The first HOE and the second HOE,

A telescope characterized by being a film type.
The method according to claim 2,

The tube, the first HOE and the second HOE,

Telescope characterized by free assembly and disassembly.
The method according to claim 4,

The tube, the first HOE and the second HOE,

A telescope characterized by being stacked in a disassembled state and portable.
The method according to claim 5,

The tube,

A telescope characterized by realizing a flexible flat material by rolling it round.
The method according to claim 6,

The flexible flat material,

A telescope characterized by being a hardboard.
A barrel forming the body of a telescope;

A first holographic optical element (HOE) installed at the objective lens position of the telescope; And

A second telescope, which is installed at an alternative lens position of the telescope.