CN1900652B

CN1900652B - Optical distance measuring device capable of reducing deformation after assembly

Info

Publication number: CN1900652B
Application number: CN200510084400A
Authority: CN
Inventors: 罗胜
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2005-07-19
Filing date: 2005-07-19
Publication date: 2010-05-05
Anticipated expiration: 2025-07-19
Also published as: CN1900652A

Abstract

The invention discloses an optical distance measuring device capable of reducing deformation after assembly, which comprises an optical module, a plastic lock accessory, a circuit board and a shell. The locking member is fixedly connected to one side of the optical module. The circuit board is fixedly connected with the locking accessory and is suspended and arranged on the other side of the optical module. The shell is used for accommodating the optical module and the circuit board and fixedly connecting with the locking accessory, so that the optical module and the circuit board are positioned. Therefore, the optical distance measuring device can improve the measuring precision by utilizing the locking accessory to absorb most of deformation generated in the assembling process.

Description

Optical distance measurer capable of lowering deformation after grouping

Technical field

The present invention relates to a kind of distance measuring equipment, particularly relate to a kind of optical distance measurer capable of lowering deformation after grouping.

Background technology

Ginseng Fig. 1, Fig. 2, general optical distance measurement apparatus 1 consists predominantly of an optics module 11, a circuit board 12 and a shell 13.

This optics module 11 have a body 111, respectively along a first axle X1 and one second axis X 2 be arranged on one first object lens 112 of these body 111 1 ends and one second object lens 113, along this first axle X1 direction be arranged on these body 111 other ends a receiving element 114, be arranged on a prism unit 115, a display unit 116 and an ocular unit 117 of these body 111 other ends along these second axis X, 2 directions, and this prism unit 115 is arranged on a transmitter unit 118 of these body 111 other ends relatively.This display unit 116 is capable of displaying image and a cross curve (figure does not show) that is positioned on this second axis X 2.This transmitter unit 118 is that this prism unit 115 is launched a light beam relatively, make light beam be projected to an object through this prism unit 115 and this second object lens 113, and after making beam reflected enter this receiving element 114 by this first object lens 112, finally show measurement, form a range measurement system at this display unit 116.In addition, this ocular unit 117 can cooperate this display unit 116, this prism unit 115 to form a telescopic system with this second object lens 113.

Consult Fig. 1, Fig. 3, this circuit board 12 is locking body 111 1 sides at this optics module 11.

This shell 13 has a upper and lower involutory loam cake 131 and a base 132 mutually, and a protecgulum 133 and a bonnet 134 of this loam cake 131 of sealing and these base 132 2 ends.

The upright step of group is as follows: 1. the optical axis of this optics module 11 of adjustment in advance, the target that aforementioned display unit 116 cross curve are aimed at, the target of getting to light beam overlaps, and make light beam after the reflection be arranged in the field range of these receiving element 114 Avalanche Photo Diodes (APD), whereby, guarantee that this APD can receive maximum folded light beam, improve measurement accuracy.2. this circuit board 12 is locked on the body 111 of this optics module 11.3. again this optics module 11 is locked on the base 132 of this shell 13, last, cover this loam cake 131 and this protecgulum 133, this bonnet 134, it is upright to finish group.

Only, because 13 on this optics module 11, this circuit board 12 and this shell, it all is hard material, therefore, under the situation of the good optical axis of this optics module 11 adjustment in advance, this group of cube formula has the skew that two actions cause optical axis, thereby have influence on the precision of measurement: the one, when this circuit board 12 locks body 111 at optics module 11, the circuit board 12 of this process reflow stove can be because of the distortion that has produced to a certain degree, feasible body 111 with these circuit board 12 lockings is affected and produces deformation, causes the skew of optical axis.The 2nd, when the body 111 of this optics module 11 locks on these shell 13 bases 132, can need certain snap-in force etc. because itself is not exclusively aimed at, locked in the position, hole, make the body 111 same generation deformation of this optics module 11, can cause the optical axis of adjusting to produce skew.So, in the upright process of group, must repeat to adjust the action of optical axis, quite consume time and manpower.

And this shell 13 is with this loam cake 131 and this base 132, and a plurality of assemblies such as this protecgulum 133 and this bonnet 134 involute mutually, therefore, can be formed with the slit of most butt joints, make integral body be unfavorable for the requirement of water proofing property, and must set up most water repellent components again, just can reach the purpose of waterproof.

Summary of the invention

The object of the present invention is to provide a kind of optical distance measurer capable of lowering deformation after grouping that can improve measurement accuracy.

The invention is characterized in: this optical ranging transposition capable of lowering deformation after grouping comprises: an optics module, locks part, a circuit board and a shell.This optics module has a body, be arranged on one first object lens and one second object lens of this body one end along a first axle and one second axis, be arranged on a receiving element of this body other end along this first axle direction, be arranged on a prism unit of this body other end along this second axis direction, one display unit and an ocular unit, and relative this prism unit is arranged on a transmitter unit of this body other end, this transmitter unit is that this prism unit is launched a light beam relatively, make light beam be projected to an object through this prism unit and this second objective lens, and after making beam reflected enter this receiving element by this first objective lens, be presented at this display unit, observe by this ocular unit for the user.This locks part and has a jam plate, and most pad posts, and this jam plate has plasticity, and in order to fixed with this optics module one side, aforementioned pad post has an end fixed with this jam plate respectively.This circuit board and the aforementioned pad post other end this to lock part fixed, and unsettled mounting at this optics module opposite side.Aforementioned optics module of this shell body and circuit board are ccontaining, and to lock part fixed with this, and the acquisition of this optics module and circuit board is located.

Effect of the present invention is to utilize this to lock the most deformation that is produced in the upright process of part absorption group, improves measurement accuracy.

Description of drawings

The present invention is described in detail below in conjunction with drawings and Examples.

Fig. 1 is a three-dimensional exploded view, and general optical distance measurement apparatus is described.

Fig. 2 is a cut-open view, and an optics module of aforementioned optical distance measurement apparatus is described.

Fig. 3 is a cut-open view, and the combination situations of aforementioned optical distance measurement apparatus is described.

Fig. 4 is a three-dimensional exploded view, and a preferred embodiment of the present invention's one optical distance measurer capable of lowering deformation after grouping is described.

Fig. 5 is a three-dimensional exploded view, illustrates that an optics module and a circuit board, lock part in this preferred embodiment.

Fig. 6 is a cut-open view, illustrates in this preferred embodiment that this optics module and this lock the part locking.

Fig. 7 is a cut-open view, illustrates that this locks part and the locking of this circuit board in this preferred embodiment.

Fig. 8 is a stereographic map, and the overall appearance after this preferred embodiment is made up is described.

Fig. 9 is the cut-open view along Fig. 8 hatching line 9-9 direction, illustrates that this locks part and shell locking in this preferred embodiment.

Figure 10 is along Fig. 8 hatching line 10-10 direction one cut-open view, and the combination situations of this preferred embodiment is described.

Embodiment

Consult Fig. 4, the preferred embodiment of optical distance measurer capable of lowering deformation after grouping of the present invention includes: an optics module 2, locks part 3, a circuit board 4 and a shell 5.

Consulting Fig. 4, Fig. 5, is respectively that the present invention contains shell 5 and the exploded view that does not contain shell 5.

This optics module 2 has a body 21, be arranged on one first object lens 22 and one second object lens 23 of these body 21 1 ends along a first axle X1 and one second axis X 2, be arranged on a receiving element 24 of these body 21 other ends along this first axle X1 direction, be arranged on a prism unit 25 of these body 21 other ends along these second axis X, 2 directions, one display unit 26 and an ocular unit 27, and relatively this prism unit 25 is arranged on action and the principle of a transmitter unit 28. aforementioned each unit of these body 21 other ends and optics module shown in Figure 2 duplicates, repeat no more in this. it is characterized in that this body 21 has most screw hole columns 211. that are formed on a bottom surface

This locks part 3 and has a jam plate 31, most pad posts 32, most first bolts 33, most second bolts 34 and most the 3rd bolts 35 (consulting Fig. 9).This jam plate 31 is the stronger ABS plastic of plasticity at the material that present embodiment adopts, and has most perforation 311 with respect to this body 21 screw hole columns 211, most first perforations 312 and most positioning screw holes 313.Aforementioned pad post 32 is the spaces by this optics module 2, and has a locking screw 321 that is formed on one first end, and is formed on another locking screw 322 of one second end.

This circuit board 4 has most second perforations 41 with respect to this jam plate 31 first perforations 312.

This shell 5 has a housing 52 that forms an opening 51, a protecgulum 53 that seals these housing 51 openings 52, and runs through most lockholes 54 (consulting Fig. 9) of this housing 52 with respect to these jam plate 31 positioning screw holes 313.

The upright step of the group of preferred embodiment of the present invention is as follows:

One, consults Fig. 6, this optics module 2 is stacked in this jam plate 31 1 end faces, after passing the perforation 311 of this jam plate 31 with aforementioned first bolt 33 again, screw togather with the screw hole column 211 of this body 21, make that this optics module 2 and this jam plate 31 are fixed to be one, then, this optics module 2 is carried out the action of optical axis adjustment.

Two, consult Fig. 7, pass first perforation 312 of this jam plate 31 respectively, and screw togather, aforementioned pad post 32 is stood be installed in this jam plate 31 end faces with the locking screw 321 of aforementioned pad post 32 first ends with several second bolts 34; Then, this circuit board 4 is mounted at these pad post 32 other ends, after passing second perforation 41 of this circuit board 4 respectively with several second bolts 34 again, locking screw 322 with aforementioned pad post 32 second ends screws togather respectively, make this circuit board 4 and these jam plate 31 lockings be one, and unsettled mounting at these optics module 2 one end faces.

Because this jam plate 31 has plasticity, therefore, in aforementioned locking process, even if this circuit board 4 has distortion, near the regional area this jam plate 31 lockings point also can sponge most deformation, and remaining a fraction of deformation.Though the deformation of this fraction can cause this jam plate 31 microdisplacements, but, because being integral body, this optics module 2 is installed on this jam plate 31, and do not interfere with this circuit board 4, so, these optics module 2 whole meetings have the situation of deformation or relative displacement hardly along with these jam plate 31 displacements between its body 21 and inner each unit, optical axis can not be offset yet certainly.

Three, consult Fig. 8, it is the stereographic map after the present invention makes up, consult Fig. 9, Figure 10 simultaneously, it is respectively cut-open view along Fig. 8 hatching line 9-9 direction and hatching line 10-10 direction, with this optics module 2 together with this circuit board 4, this locks part 3 and is inserted in this housing 52 by this opening 51 (consulting Fig. 4), then, after passing the lockhole 54 of this shell 5 with aforementioned the 3rd bolt 35, screw togather with the positioning screw hole 313 of this jam plate 31, this jam plate 31 is fixed in this housing 52 together with this optics module 2, this circuit board 4, at last, cover this protecgulum 53 and this housing 52, it is upright to finish group.

In like manner, when locking this jam plate 31 and this housing 52, because most of deformation that factors such as the incomplete aligning in position, hole produce, also can be sponged by near the regional area this jam plate 31 lockings point, and remaining a fraction of deformation, though may also can cause these jam plate 31 microdisplacements,, do not have the situation of deformation or relative displacement equally between this body 21 and inner each unit, and can not influence the travel path of optical axis.

According to the above as can be known, optical distance measurer capable of lowering deformation after grouping of the present invention has following advantage and effect:

1. the present invention can be by the setting of this jam plate 31, will organize in the upright process, the influence of optical axis is reduced to minimum, not only can improve measurement accuracy, avoids the action of repetition adjustment optical axis, and can the saving group immediately between, reduce upright fraction defective of product group and cost simultaneously.

2. are integral types and are tubular owing to this housing 52, therefore, can reduce the quantity of seam crossing, promote the water proofing property of this shell 5.

Claims

1. An optical ranging device capable of reducing deformation after assembly, characterized in that it comprises:

An optical module has a body, a first objective lens unit and a second objective lens unit arranged at one end of the body along a first axis and a second axis, and an objective lens unit arranged at the other end of the body along the direction of the first axis A receiving unit, a prism unit arranged at the other end of the body along the direction of the second axis, a display unit and an eyepiece unit, and a transmitting unit arranged at the other end of the body opposite to the prism unit, the transmitting unit is opposite The prism unit emits a light beam, so that the light beam is projected onto an object through the prism unit and the second objective lens group, and the reflected light beam enters the receiving unit from the first objective lens group, and is displayed on the display unit for the user observed by the eyepiece unit;

A locking accessory has a locking plate and a plurality of spacers, the locking plate has plasticity and is used for solidification with one side of the optical module, and the aforementioned spacers respectively have one end fixed with the locking plate;

A circuit board, which is fixed to the other end of the aforementioned pad, and suspended on the other side of the optical module; and

A casing is used for accommodating the aforementioned optical module and circuit board, and is fixed with the locking part so that the optical module and the circuit board can be positioned.

2. The optical distance measuring device capable of reducing deformation after assembly as claimed in claim 1, wherein the housing has a casing forming an opening, and a front cover for closing the casing opening, and the optical module Assembled with the circuit board, the locking part is put into the housing through the opening of the housing.

3. The optical distance measuring device capable of reducing deformation after assembly according to claim 1, characterized in that the optical module also has a plurality of screw holes formed on one side of the body, and the lock part also has There are a plurality of first bolts, and the locking plate has a plurality of through holes corresponding to the aforementioned screw holes, and the aforementioned first bolts respectively pass through the aforementioned through holes and are screwed with the screw holes of the optical module.

4. The optical distance-measuring device capable of reducing deformation after assembly as claimed in claim 1, characterized in that, the lock accessory also has a plurality of second bolts, and the aforementioned pads respectively have a lock formed at a first end A solid screw hole, and another locking screw hole formed at a second end, and the locking plate has a plurality of first through holes corresponding to the locking screw holes at the first end of the pad column, and the circuit board has a plurality of first through holes corresponding to the locking screw holes at the first end of the spacer. The plurality of second through holes of the locking screw holes at the second end of the aforementioned backing column, the aforementioned second bolts are respectively passed through the first through hole of the locking plate and the second through hole of the circuit board and connected with the locking screws of the aforementioned backing column. The hole is screwed.

5. The optical distance measuring device capable of reducing deformation after assembly as claimed in claim 1, wherein the lock part also has a plurality of third bolts, the lock plate also has a plurality of positioning screw holes, and the The housing also has a plurality of locking holes penetrating the housing relative to the positioning screw holes of the locking plate, and the aforementioned third bolts pass through the locking holes respectively and are screwed with the positioning screw holes of the locking plate.