CN201196695Y

CN201196695Y - Optical focusing structure used for laser collimation

Info

Publication number: CN201196695Y
Application number: CNU200820029112XU
Authority: CN
Inventors: 黄志明
Original assignee: XI'AN ZHONGWEI TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: XI'AN ZHONGWEI TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2008-05-15
Filing date: 2008-05-15
Publication date: 2009-02-18
Anticipated expiration: 2018-05-15

Abstract

The utility model relates to the optical apparatus technical field, in particular to an optical focusing structure for laser alignment. The utility model can overcome the problems of big concentricity error, bad opticla quality of product, high defective rate and uncontrollable directions of major and minor axes of facula of the prior art, and provides the optical focusing structure for laser alignment. The optical focusing structure comprises a shell and a laser tube component which comprises a laser tube base, an inner wall of the shell is connected with an outer wall of the laser tube in sliding fit, and a tail part of the laser tube is exposed. Compared with the prior art, the optical focusing structure has the advantages of: 1. small concentricity error; 2. good optical quality of product; 3. easily-controlled directions of major and minor axes of facula; 4. simplified operations; 5. low product cost; and 6. wide scope of application.

Description

A kind of optical focusing structure that is used for laser alignment

Affiliated technical field:

The utility model relates to the optical devices technologies field, is specifically related to a kind of optical focusing structure that is used for laser alignment.

Background technology:

Pointolite comprises laser tube parts and the lens combination parts that connect in the shell, shell, is provided with laser diode at an end of laser tube parts.In order to make the laser spots light source send a branch of high-quality collimated light, all designed focusing structure in the pointolite, mostly present focusing structure is to adopt axial thread focusing mode, wherein again with between laser tube parts and the shell or to adjust focal length with thread connection between lens combination parts and the shell comparatively common.The problem that existing focusing structure exists is: 1, concentricity is big: because therefore the excesssive gap of threaded engagement can cause the error of concentricity big; 2, the optical quality of product is poor: owing to adopt thread connection, the metal fillings that comes off on the internal and external screw thread surface can influence the optical quality of product; 3, defect rate height: add and need handle internal and external threads man-hour, because the processing and the quality control relative complex of screw thread, so the defect rate height; 4, adopt the focus major and minor axis direction of uncontrollable hot spot of helicitic texture between laser tube parts and the shell.

Summary of the invention:

The purpose of this utility model is that a kind of optical focusing structure that is used for laser alignment will be provided, and the concentricity that prior art exists optical quality big, product is poor, defect rate high and the axial problem of uncontrollable hot spot length to overcome.

For overcoming the problem that prior art exists, the technical scheme that the utility model provides is: a kind of optical focusing structure that is used for laser alignment, comprise shell 1 and laser tube parts, described laser tube parts comprise laser base 2, it is characterized in that: the connection that is slidingly matched of the outer wall of the inwall of described shell 1 and laser base 2, the afterbody of laser base 2 exposes.Can be held when guaranteeing to focus, drawing the focusing of sliding.

The afterbody periphery of above-mentioned laser base 2 is provided with annular boss 3.

Be provided with the gap between the end face of above-mentioned annular boss 3 and shell 1, gap width is 0.5～2mm.Insert for instrument in this gap, the laser tube parts is pulled out carry out the defective products maintenance.

The afterbody periphery of above-mentioned laser base 2 is provided with ring groove 4.

Compared with prior art, the utility model has the advantages that:

1, concentricity is little: shell and laser base is fixing respectively, regulate along optical axis direction then, and make slide displacement takes place between the two, can effectively guarantee the concentricity of product like this;

2, the optical quality of product is good: do not have metal fillings and come off, also just can not stick to the optical quality that influences product on the lens surface because of metal fillings;

3, control the direction of hot spot major and minor axis easily: can determine the long and short direction of principal axis of the oval hot spot of laser as required easily, effectively guarantee the accurate positioning of product;

4, simplified control: simple in structure, easy to adjust, reduced technical ability requirement to the operative employee;

5, the cost of product is low: product structure is simple, and parts surface does not need to handle, and glueds joint fixingly after focusing with sliding matching mode simultaneously again, and the substandard products of generation are few, even a small amount of substandard product is arranged, reprocess also and be easy to, so the entire product integrated cost is low;

6, applied widely: the utility model can be used as stand-alone product and uses separately, can also use as the pointolite parts of laser line light source.

Description of drawings:

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the structural representation of embodiment 2;

Fig. 3 is the structural representation of embodiment 3;

Fig. 4 is the fit structure synoptic diagram of product and the frock that adopts among the embodiment 3.

Description of reference numerals:

The 1-shell, 2-laser base, 3-annular boss, 4-ring groove.

Embodiment:

Below in conjunction with accompanying drawing the utility model is done detailed explanation.

Embodiment 1, and referring to Fig. 1, a kind of optical focusing structure that is used for laser alignment comprises shell 1 and laser tube parts.Include laser base 2 in the said laser tube parts, the connection that is slidingly matched of the outer wall of the inwall of shell 1 and laser base 2, the afterbody of laser base 2 exposes.

The operator regulates along optical axis direction with hold with a firm grip the respectively afterbody of shell 1 and laser base 2 of two hands, makes laser tube parts generation axial displacement, realizes accurate focusing; The major and minor axis direction that hot spot is regulated in the mutual alignment of the afterbody of also rotatable in case of necessity shell 1 and laser base 2.Adjusting finishes, and the cylinder adhesive solidification makes the position relative fixed of laser tube parts and shell 1, finishes focusing.

Embodiment 2, and referring to Fig. 2, difference from Example 1 is that the afterbody periphery of laser base 2 is provided with endless groove 4.Be convenient to carry out overhauling of defective products.

Embodiment 3, and referring to Fig. 3, a kind of optical focusing structure that is used for laser alignment comprises shell 1 and laser tube parts.Include laser base 2 in the said laser tube parts, the connection that is slidingly matched of the outer wall of the inwall of shell 1 and laser base 2, the afterbody of laser base 2 exposes and the afterbody periphery is provided with annular boss 3.Behind the focusing location, can form a gap between the end face of annular boss 3 and shell 1, gap width is between 0.5～2mm.

During focusing, shell 1 can be arranged on the fixation workpiece, the afterbody that grasps laser base 2 is regulated the laser tube position component.Adjusting finishes, and the cylinder adhesive solidification makes the position relative fixed of laser tube parts and shell 1, finishes focusing.When meeting defective products, tool using inserts in the gap between the end face of annular boss 3 and shell 1, the laser tube parts is pulled out overhaul.

Referring to Fig. 4, also can design frock and focus.As long as said frock can clamp shell 1 and laser base 2 respectively, and can make that the various structures along optical axis direction generation slide displacement all can adopt between laser tube parts and the shell 1.Be good with the screw rod adjustment structure wherein, axial location is good, and is convenient to operation.

Claims

1. optical focusing structure that is used for laser alignment, comprise shell (1) and laser tube parts, described laser tube parts comprise laser base (2), it is characterized in that: the connection that is slidingly matched of the outer wall of the inwall of described shell (1) and laser base (2), the afterbody of laser base (2) exposes.

2. a kind of optical focusing structure that is used for laser alignment as claimed in claim 1, it is characterized in that: the afterbody periphery of described laser base (2) is provided with annular boss (3).

3. a kind of optical focusing structure that is used for laser alignment as claimed in claim 2 is characterized in that: be provided with the gap between the end face of described annular boss (3) and shell (1), gap width is 0.5～2mm.

4. a kind of optical focusing structure that is used for laser alignment as claimed in claim 1, it is characterized in that: the afterbody periphery of described laser base (2) is provided with ring groove (4).