CN214252711U

CN214252711U - Mobile optical device

Info

Publication number: CN214252711U
Application number: CN202023290044.2U
Authority: CN
Inventors: 于志伟; 张建清; 张涵; 方得安; 唐怀武; 陶波
Original assignee: Hangzhou Chunlai Technology Co Ltd
Current assignee: Hangzhou Chunlai Technology Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-21
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a movable optical device, which comprises a bracket and a light reflector; the linear guide rail is arranged on the bracket; the bearing piece is slidably arranged on the linear guide rail; the light reflector is arranged on the bearing piece; the driving unit comprises a first group of magnets, a second group of magnets and a third group of magnets, the first group of magnets and the second group of magnets respectively comprise a plurality of permanent magnets and are arranged along the extending direction of the bracket; the N pole and the S pole of the permanent magnet on each side of the gap between the first group of magnets and the second group of magnets face the gap alternately, the permanent magnets on the two sides of the gap are arranged oppositely, and the magnetic poles are opposite; the third group of magnets are electromagnets, are arranged between the first group of magnets and the second group of magnets, and are arranged along the extending direction; the magnetic field direction of the third group of magnets is vertical to the extending direction of the bracket; the distance measuring unit is used for detecting the moving distance of the bearing piece. The utility model has the advantages of high moving precision, no vibration and the like.

Description

Mobile optical device

Technical Field

The present invention relates to optical devices, and more particularly, to a mobile optical device.

Background

In the field of optics, it is usually related to the automatic movement of optical devices, such as the movement of convex lens, and the conventional design scheme is motor + screw rod transmission, and adopts the scheme of motor belt rotation, rack and pinion transmission, etc., and the design scheme has disadvantages, such as: the technical scheme is mechanical hard contact, has limited service life and vibration in movement, and cannot meet the use requirement of high-precision moving parts.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the above-mentioned prior art scheme, the utility model provides a remove portable optical device of precision height, contactless and vibrations.

The utility model aims at realizing through the following technical scheme:

a mobile optical apparatus comprising a support and an optical device; the mobile optical device further comprises:

the linear guide rail is arranged on the bracket;

a carrier slidably disposed on the linear guide; the optical device is arranged on the bearing piece;

the driving unit comprises a first group of magnets, a second group of magnets and a third group of magnets, the first group of magnets and the second group of magnets respectively comprise a plurality of permanent magnets and are arranged along the extending direction of the bracket; the N pole and the S pole of the permanent magnet on each side of the gap between the first group of magnets and the second group of magnets face the gap alternately, the permanent magnets on the two sides of the gap are arranged oppositely, and the magnetic poles are opposite; the third group of magnets are electromagnets, are arranged between the first group of magnets and the second group of magnets, and are arranged along the extending direction; the magnetic field direction of the third group of magnets is vertical to the extending direction of the bracket;

and the distance measuring unit is used for detecting the moving distance of the bearing piece.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the moving precision is high;

the electromagnet is arranged between the first group of magnets and the second group of magnets, the driving force is provided by the alternating magnetic field generated by the electromagnet, and the moving distance of the bearing piece is detected by using laser ranging and other modes, so that the magnetic field direction of the electromagnet is adjusted in real time, and the moving precision is provided;

2. no contact and no vibration;

the electro-magnet contacts with first group magnet and second group magnet equipartition, has avoided vibrations, has correspondingly improved the removal precision that holds carrier.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only intended to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:

fig. 1 is a schematic structural diagram of a mobile optical device according to an embodiment of the present invention.

Detailed Description

Fig. 1 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. For the purpose of teaching the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.

Example 1:

fig. 1 shows a schematic structural diagram of a mobile optical device according to an embodiment of the present invention, as shown in fig. 1, the mobile optical device includes:

supports and optical devices, such as light reflecting devices or light transmitting devices;

the linear guide rail is arranged on the bracket;

the driving unit comprises a first group of magnets 1, a second group of magnets 2 and a third group of magnets 3, wherein the first group of magnets 1 and the second group of magnets 2 respectively comprise a plurality of permanent magnets and are arranged along the extending direction of the bracket; the N pole and the S pole of the permanent magnet on each side of the gap between the first group of magnets 1 and the second group of magnets 2 face the gap alternately, the permanent magnets on the two sides of the gap are arranged oppositely, and the magnetic poles are opposite; the third group of magnets 3 are electromagnets, are arranged between the first group of magnets 1 and the second group of magnets 2, and are arranged along the extending direction; the magnetic field direction of the third group of magnets is vertical to the extending direction of the bracket;

In order to provide a mounting manner suitable for the optical device, the bracket is further provided with a linear groove, the first group of magnets and the second group of magnets are respectively arranged on two opposite sides of the linear groove, and the third group of magnets are arranged on the bearing piece.

In order to provide a suitable mounting for the optical device, the first and second sets of magnets are further arranged on the carrier, respectively, and the third set of magnets is arranged on the carrier.

In order to avoid mutual influence, further, the guide rail is located higher than the first and second sets of magnets in the vertical direction.

In order to improve the detection precision and reduce the detection time, the distance measuring unit further adopts laser distance measurement.

Example 2:

according to the utility model discloses the application example of portable optical device in the light reflection of embodiment 1.

In this application example, the optical device is a light reflector, the first reflecting surface and the second reflecting surface are formed on different reflecting surfaces of the same reflector, and an included angle between the first reflecting surface and the second reflecting surface is a right angle;

the support is provided with two linear guide rails arranged along the extending direction of the support, and the bearing parts are arranged on the two guide rails; the first group of magnets and the second group of magnets comprise the same number of permanent magnets, and the two groups of permanent magnets are arranged on the bottom wall of the bearing piece, and gaps are formed between the permanent magnets; the third group of magnets are electromagnets and are fixedly arranged on the bracket and positioned in a gap between the two groups of permanent magnets;

the distance measuring unit adopts a laser distance measuring module to detect the moving distance of the bearing piece in real time.

Example 3:

according to the utility model discloses an application example of embodiment 1's portable optical device, as shown in fig. 1, with embodiment 2 difference be:

1. the first reflecting surface and the second reflecting surface are formed on different reflecting mirrors, such as two plane reflecting mirrors;

2. the support is provided with two linear guide rails arranged along the extending direction of the support, and the bearing parts are arranged on the two guide rails; the bracket is provided with a linear groove, and the extending direction of the groove is the same as that of the bracket; the first group of magnets and the second group of magnets comprise permanent magnets with the same number, and the two groups of permanent magnets are arranged on two sides of the groove; the third group of magnets are electromagnets, are fixedly arranged on the support, are positioned in the grooves between the two groups of permanent magnets and are positioned between the two groups of permanent magnets.

The above embodiments are only exemplary to show that the optical device is a light reflector, but of course, the optical device may be a lens, a grating, or other optical devices, such as a convex lens, a concave lens, or other optical devices.

Claims

1. A mobile optical apparatus comprising a support and an optical device; characterized in that the mobile optical device further comprises:

the linear guide rail is arranged on the bracket;

2. The mobile optical device according to claim 1, wherein the carriage has a linear groove therein, the first and second sets of magnets are disposed on opposite sides of the linear groove, respectively, and the third set of magnets is disposed on the carrier.

3. A mobile optical device according to claim 1, wherein the first and second sets of magnets are each disposed on the carrier and the third set of magnets is disposed on the support.

4. A mobile optical device according to claim 2, wherein the guide rail is positioned vertically higher than the first and second sets of magnets.

5. The mobile optical device according to claim 1, wherein the optical device is a light reflector comprising a first reflective surface and a second reflective surface, the first reflective surface and the second reflective surface forming a right angle.

6. A mobile optical device according to claim 5, wherein the first and second reflective surfaces are formed on different mirrors, or different reflective surfaces of the same mirror.

7. The mobile optical device of claim 1, wherein the ranging unit employs laser ranging.