CN2305690Y

CN2305690Y - Electric controlled light path switching device

Info

Publication number: CN2305690Y
Application number: CN 97226550
Authority: CN
Inventors: 孙文才; 李殿军; 孙杰
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date: 1997-09-17
Filing date: 1997-09-17
Publication date: 1999-01-27
Anticipated expiration: 2007-09-17

Abstract

The utility model discloses an electric controlled optical path switching device which is an electromagnetic optical path switching device controlled by an angle positioning pin and adopting the electromagnetic action principle of a permanent magnet and a magnetic coil structure. The utility model has the advantages of small size, high precision for optical path angle, good repeatability, less noise, etc., and has wide application foreground in optical experiments and photoelectric devices.

Description

Automatically controlled optical path switching device

The utility model belongs to the optical path switching device in the what photoelectric instrument field.

Before the utility model, in Experiments of Optics or photoelectric instrument, optical path switching device has several forms, and for example: the optical path switching device majority that is used on the optical bench all is to change light path with manual operation.In automatic optical path switching device, be a kind of tractive magnet formula optical path converter that is called, as shown in Figure 1: form by microscope base 1, microscope base turning axle 2, pull bar 3, tractive magnet 4, catoptron 5 with the most approaching prior art of the utility model.

This electromagnetism optical path converter makes owing to drag link mechanism occupies very large space that volume is very big, precision is low, poor repeatability, and vibration and noise are very big during tractive magnet work, can not be applied on the conversion equipment of accurate light path.

In order to overcome above-mentioned shortcoming, the purpose of this utility model is to reduce the volume of optical path switching device, improves light path conversion accuracy and stability, reduces vibration and noise, has more use value.

Detailed content of the present utility model is as shown in Figure 2: be made up of housing 6, microscler permanent magnet 7, field coil 8, angle orientation pin 9, lock-screw 10, microscope base 11, catoptron 12, microscope base turning axle 13, bearing 14, coil brace 15.

Microscope base turning axle 13 is vertically mounted on the symcenter position of coil brace 15, connect with adopting bearing 14 modes between the coil brace 15, microscler permanent magnet 7 adopts to closely cooperate with microscope base turning axle 13 and combines as a whole, and be distributed in the symcenter position of microscope base turning axle 13 and field coil 8 symmetrically, field coil 8 is distributed on the coil brace 15 of microscope base turning axle 13 both sides symmetrically, the angle orientation pin 9 usefulness screws and the coil brace 15 that are enclosed within on the microscope base turning axle 13 connect firmly, coil brace 15 is contained in the housing 6, connect firmly with screw and housing 6, the microscope base 11 of catoptron 12 is housed, connects firmly by lock-screw 10 and the microscope base turning axle 13 that passes housing 6.

The principle explanation: microscler permanent magnet 7 is under the action of a magnetic field of hot-wire coil, repel each other according to the permanent magnet magnetic field direction and the coil magnetic field direction same sex, the principle that there is a natural attraction between the sexes, the exercising result of magnetic field force, make microscler permanent magnet 7 produce to rotatablely move and drive microscope base turning axle 13 and rotate simultaneously, the size of this rotation angle value is determined by angle orientation lock 9, therefore, the microscope base that catoptron 12 is housed 11 that connects firmly on microscope base turning axle 13 also rotates identical angle thereupon.

Good effect of the present utility model: dwindled the volume of optical path switching device, improved the precision and the stability of light path indexing, reduced vibration and noise, had good use value.

Description of drawings: Fig. 1 is the structural representation of prior art;

Fig. 2 is a structural representation of the present utility model, and Figure of abstract adopts Fig. 2.

Most preferred embodiment: the light path rotation angle by 9 controls of angle orientation pin is a 45, and housing 6 and coil brace 15 adopt aluminum alloy materials.

Claims

1, automatically controlled optical path switching device, be by microscope base, catoptron, turning axle, permanent magnet is formed, it is characterized in that: microscope base turning axle 13 is vertically mounted on the symcenter position of coil brace 15, connect with adopting bearing 14 modes between the coil brace 15, microscler permanent magnet 7 adopts the symcenter position that closely cooperates and combine as a whole and be distributed in microscope base turning axle 13 and field coil 8 symmetrically with microscope base turning axle 13, field coil 8 is distributed on the coil brace 15 of microscope base turning axle 13 both sides symmetrically, the angle orientation pin 9 usefulness screws and the coil brace 15 that are enclosed within on the microscope base turning axle 13 connect firmly, coil brace 15 is contained in the housing 6, connect firmly with screw and housing 6, the microscope base 11 of catoptron 12 is housed, connects firmly by lock-screw 10 and the microscope base turning axle 13 that passes housing 6.