CN1078566A - Mirrorless scanners with movable laser, optical and sensor components - Google Patents

Abstract

In the bar code label scanning system of using laser, optical system and scanner parts, a kind of Mirrorless scanners with movable laser, optical and sensor components is that one or more in these parts have been installed on a drive unit, is used for making it to center on an axis or does repeated to-and-fro movement to realize scanning in a plane.Described these parts are installed in the common assembly together constituting a scan module compactness, light weight, and this module is installed in the shell of isomorphism type not in the mode of interchangeable modules.

Description

Mirrorless scanners with movable laser, optical and sensor components

The present invention generally relates to and is used to read the mark that different light reflectivities are arranged, the laser scanning system of bar code label for example, and especially relate to so-called mirror-free type scanning system, in this system, do not use mirror, and the mark of reading is carried out flyback or scanning with other parts.

The type of laser scanning system and parts for example is described in the following patent: U.S. Patent number: 4251798; 4360798; 4369361; 4387297; 4593186; 4496831; 4409470; 4460120; 4607156; 4673803; 4736095; 4758717; 4816660; 4808804; 4816661; 4760248; 4871904; 4806742; 4845350 and Application No. 148699 and all these patents of 147708(and application be the application the assignee all and be combined in here as a reference), generally be designed for reading mark with different light reflectivity parts, the mark of bar code label, especially Universial Product Code (VPC) type for example, this mark are positioned in hand-held or fixed scanner certain work or reading distance.

Typically, by a light source, for example laser produces a light beam, and it is by optical correction and form the light beam spot of certain size at the operating distance place, utilize optics that light beam spot is registered near the bar code label that is positioned at the operating distance along light path again, be used for reflecting with mark.Photodetector has on the index face of extending to and just over the visual field of mark, is used for detecting the light of the variable intensity that reflects from mark and produces the electric signal of representing detected light.These electric signal are decoded into the data of descriptive markup.On light path, be provided with a sweep unit.This sweep unit can make light beam along mark scannng and scan out along mark and surpass a sweep trace of mark, and perhaps the visual field of scan light detecting device is perhaps scanned the both.

Under any circumstance, scanner typically comprises a movable mirror.For example disclose in US 4251798 and a kind ofly have the rotatable mirror polygon of a level crossing in every side, each mirror scans out a sweep trace and crosses mark.All used a level crossing that repeatedly back and forth drives around driving shaft quilt on the garden Zhou Fangxiang that is replacing in US 438729 and 4409470, this level crossing is installed on the driving shaft.A kind of many mirrors structure is disclosed in US 4816660, it is that concave mirror part and is that plane mirror section is formed substantially by one substantially, this many mirrors structure is also repeatedly back and forth driven around a driving shaft on the garden Zhou Fangxiang that replaces, and this many mirrors structure is installed on the driving shaft.

No matter how are the shape of mirror and fetch bit, known sweep unit is used movable mirror and is realized above-mentioned scanning and flyback operation in laser scanning system.Make other laser scanning system component movement be considered to unpractical.For example, it is unthinkable making Gas LASER Tube motion, especially in the application of hand-held compact systems, because big space must be provided and big size is arranged itself the Gas LASER Tube of a motion.Make an optical lens motion also be considered to unfavorable, because the location of light parts is very strict in laser scanning system.Therefore, mirror is generally believed and can be played flyback/scan action just.Yet in some laser scanning was used, the motion of mirror was proved and is not fully desirable.

Be in the non-laser scanning system type of example with US 4578571, a non-lasing fluorescence diode, an optical module, a photodetector, and electronics amplify in advance/filtering circuit all is fixedly mounted on the common holder, this support is connected with a cantilever bimorph, and the latter is reciprocally driven so that above-mentioned all parts reach motion backward forward on bar code label to be scanned.Because the large volume of all common this non-laser system parts of installing and big quality just need the big power of cost to be used for driving.In these cases, under the situation as battery-powered operation, what this neither be practical fully, its power consumption should remain to minimum as far as possible when powered battery.Similarly, only make one or more non-mirror system units with respect to other non-mirror system unit motion be used to save power also think so far unfavorable because the problem of the light positioning parts of having said above having.

Wishing has a kind of photo-scanning system, makes the parts of its photo-scanning system, comprises light source, optical system, and photodetector, sweep unit and electric conductor all are installed on the common assembly to constitute a compactness, lightweight scan module.This scan module is installed in the shell of isomorphism type not with interchangeable modular form.

For example, the Cylinder shape of so-called electric torch pattern can be handed and have to shell, perhaps box-like, perhaps has rifle class configuration.This shell storehouse can be installed in operator's arm back (for example referring to US 4766299) or be arranged on one or more fingers of operator's hand, and typically by a belt, clip or gloves are accomplished.This shell storehouse can be installed on operator's arm, normally near the wrist or on wrist.This shell storehouse also can be installed on the workstation of a sales counter.This shell storehouse can also be installed in the removable trolley, or in the shopping cart, or in some cases, even be installed on the fixed equipment.

The compactness of scan module, lightweight characteristics can make shell storehouse configuration rout up countless new varieties.So this scan module can be contained on operator any position on one's body, for example be contained on the helmet that the operator wears, on the glasses that the operator is worn at the moment, on the shoulder or on the braces etc.

The scanning system that is used to read different light reflectivity marks that is to make prior art of catalogue of the present invention, the laser scanning system of especially reading bar code label is developed.

Another object of the present invention is that cancellation uses mirror to reach the motion of the mirror of flyback and scan action.

Another purpose of the present invention provides so-called " mirror-free type " scanner system, and it is compact dimensionally, and is in light weight, uses reliable and relatively in assembling and to make cost low.

Another object of the present invention is to make the parts associated movement of one or more scanning systems or move dividually each other to reach the function of flyback and scanning.

Another purpose of the present invention is to use the mirror-free type scanning system of multiple style: hand-held, and finger is worn formula, and arm is worn formula, and body is taken formula, desk-top workstation and removable or fixing configuration.

Another object of the present invention is to use the mirror-free type scanning system of multiple scan pattern, for example single shaft and multiaxis scanning.

Another purpose of the present invention is in the shell storehouse of isomorphism type not the mirror-free type scanning system to be installed interchangeably.

In order to realize these purposes and the other purpose that will be seen that hereinafter, in brief, one of the present invention is characterised in that and is used for reading mark with different light reflectivities part as having the mirror-free type scanister of bar alternately and the photo-scanning system of empty bar code label.The general type of this system has a light source part, for example is used for the laser part of emission of lasering beam; An optics, for example a condenser lens and/or a diaphragm are used for optical correction and laser beam is registered near the mark that is positioned at this system's external reference face along light paths; And an optical detector components, a photodiode for example, it has a visual field and is used for detecting at least the part of the variable intensity light that is returned by the mark reflected light, and produces the electric signal of representing detected light intensity.This electric signal is processed and be transformed into the data of descriptive markup subsequently.

According to the present invention, this mirror-free type scanister comprises: be used for the device installed with respect to repeatedly reciprocating parts of another parts at least to one of major general, and make the repeatedly reciprocating drive unit of this erecting device, and a described at least device can scan one in the described light beam and the described visual field at least.Only be one or only be two described parts relatively in addition the parts to-and-fro movement be favourable.In addition, all these parts are to-and-fro movement together also, and in the case, preferably light path and light return path are conllinear, and they are conllinear in a shell storehouse at least, and above-mentioned described parts are housed in this shell.

Preferably this drive unit comprises the motor with a longitudinal axis, is used for around the axis along the axle longitudinal extension this being rotated on a garden Zhou Fangxiang who replaces, and the arc length of its alternate rotation is less than 360 °, for example on the both sides of a center each 10 °.At least described parts are installed on the axle, rotate with axle.

The parts that are installed on this can be for example semiconductor laser diodes of laser part, a condenser lens, an aperture door screen, whole combinations of condenser lens and aperture door screen.Simultaneously, photodiode also can be installed on this axle and therewith rotate.Because diode needs a power supply,, and, be favourable so used circle formula tension electrical lead connection laser diode and photodiode because the electric signal that is produced by photodiode must be sent to signal processing circuit as 12 volts of direct supplys.

Above-mentioned parts are swayed, and this driving device also can be used for making the to-and-fro movement in a plane of one or more above-mentioned parts, and this plane and an optical axis are perpendicular, can stretch along the center along the optical axis light path.This plane motion can be used implemented in many forms: for example Electromagnetic Drive, Mechanical Driven, Piezoelectric Driving and the driving of bimetallic strip heat.

This mirror-free type scanister of the present invention can be used to produce single scan line on mark to be read, or uses the multi-thread scanning patter of generation on mark with other sweep unit.

In addition, this mirror-free type scanister size is very compact and in light weight, can be installed in many different system configurations with modular manner.For example, this device can be installed in to have in any hand-held shell that makes things convenient for shape, for example has the rifle shape head of shell and handle, or the box-like head, or the garden columnar head; Be contained in that wrist is worn or shell storehouse that arm is worn in; Or in the glove-type shell; Or in the shell worn of finger, ring shape head for example; Or in desk-top or counter type shell, for example having upwards scanning, scanning downwards, or to the workstation of side direction scan capability; Or be contained on the trolley movably in the shell; Or in fixed system equipment, for example be installed on the production line or on cash register.This device size compactness and lightweight characteristics make it for various application and use the rich configuration that changes can be arranged.Also reduce to minimum for making the required power of one or more reciprocating member to-and-fro movements.Advantageously this device is taken off from the system that it is installed easily.The parts that need to replace are easy to by parts replacement in addition.

The novel feature that is considered as feature of the present invention ad hoc is documented in the appended claims.Yet, the present invention itself, no matter on its structure or on its method of operating, and the purpose other with it and advantage are together, will the most clearly be understood by the following reading that specially for carrying out example is in conjunction with the accompanying drawings described.

Figure 1A: partly cut-away and part that a kind of hand-held photo-scanning system of mirror-free type scanister according to the present invention is installed are the synoptic diagram in cross section;

Figure 1B: the opposite side view of Figure 1A device;

The front, perspective view of the mirror-free type scanister of Fig. 2: Figure 1A;

Fig. 3: the part of mirror-free type scanister is the side view in cross section according to another embodiment of the present invention;

Fig. 4: the diagram top plan view of describing embodiment work among Fig. 3;

Fig. 5: the part according to the mirror-free type scanister of further embodiment of this invention is the side view in cross section;

Fig. 6: the enlarged drawing of 6-6 part along the line among Fig. 5;

Fig. 7: embodiment is operated in the diagram top plan view on the restriction site of both ends among description Fig. 5;

Fig. 8: use the rear perspective view in the multiaxis linear scanning system as the mirror-free type scanister of Fig. 2;

Fig. 9: the skeleton view of cutting open according to the part of another embodiment of mirror-free type scanister of the present invention;

Figure 10: the side view that uses the gooseneck type scanning system workstation of the arbitrary mirror-free type scanister of the present invention;

Figure 11: the side view of the another embodiment of mirror-free type scanister according to the present invention;

Figure 12: along the sectional view of Figure 11 hatching line 12-12;

Figure 13: the cross-sectional view that is used for the another kind of spring of embodiment of Figure 11 and 12;

Figure 14: along the sectional view of Figure 16 Vertical Centre Line 14-14;

Figure 15: embodiment end-view among Figure 16;

Figure 16: according to the top plan view of another embodiment of mirror-free type scanister of the present invention;

Figure 17: similar to Figure 14 but be sectional view according to the another embodiment of mirror-free type scanister of the present invention;

Figure 18: similar to Figure 14, but be view according to another embodiment of mirror-free type scanister of the present invention;

Figure 19: similar to Figure 14, but be the view of the another embodiment of mirror-free type scanister according to the present invention;

Figure 20: the skeleton view that utilizes the part of a hand-held scanner system of mirror-free type scanister to cut open;

Figure 21: the skeleton view that utilizes a rotary-type system of hand-held of mirror-free type scanister;

Figure 22: the sectional view that utilizes the part of a kind of hand-held scanner system of mirror-free type scanister to cut open;

The side view of Figure 23: Figure 22;

Figure 24: the arm of use mirror-free type scanister is worn the side view of formula scanning system;

Figure 24 A: another arm of use mirror-free type scanister is worn the front, perspective view of formula scanning system;

24B: the another arm of use mirror-free type scanister is worn the lateral perspective of formula scanning system;

Figure 25: band is at the side view of user's glove-type scanning system on hand;

Figure 26: the side view that uses the ring type scanning system of mirror-free type scanister;

Figure 27: the skeleton view that uses the packaged type checkout stations of mirror-free type scanister;

Figure 28: use the mirror-free type scanister to be installed in the side view of a kind of hand-held scanner system on the purchase trolley;

Figure 29: along the enlarged drawing of the section of Figure 28 Vertical Centre Line 29-29;

Figure 30: the skeleton view of the on-the-spot counter type scanning system of point of sale;

Figure 31: side view with counter type scanning system of removable head; And

Figure 32: the top view plane that is applicable to lefthanded and dexterous operator's scanning system.

Referring now to accompanying drawing, the label 10 among Figure 1A and the 1B always is illustrated in the device in a kind of scanning system of common described type in the patent of above-mentioned same theme and the patented claim, and it is used for read flag, especially the upc bar code mark.The combination here of the full content of above-mentioned all patents and application as a reference.As employed in this instructions and following claims, " mark " (" symbol ") speech has broad lexical or textual analysis, it not only refers to cover by bar that replaces and the empty indicia patterns of forming, and comprise other pattern, as alphanumeric symbol, in brief, it is any mark with different light reflectivity parts.

Device 10 comprises a handheld housing storehouse 12, and it has a substrate 14, and this substrate becomes the first half 16 and Lower Half 18 with the internal separation of shell.One to US4496831 in describe similar light weight, at a high speed, the scanning motor 20 of miniaturization is installed on the substrate 14.This motor 20 has an output shaft 22, and this repeatedly is driven around the axle center on the garden Zhou Fangxiang that replaces, this 22 along the arc length of on each direction, rotating in garden week less than 360 °.The situation of structure, function and the operating aspect of the control circuit 24 of this motor 20 and this motor at length is documented among the US 4496831, for the purpose of concise and to the point, no longer repeats here.

A difference among motor 20 among the present invention and the US 4496831 between the motor is to be installed in the superstructure on the output shaft 22.The present invention proposes, and the level crossing that instructs in need not described patent in Figure 1A, has been installed a roughly support 26 of U-shaped, and a laser/light assembly 28 has been installed on this support 26 in the end of axle 22.This assembly 28 and support 26 and axle 22 1 oscillates and rotation.

Assembly 28 comprises that 30, one laser diodes 32 of a long hollow tube are fixedly mounted on 30 1 axle head zones of pipe, and a lens drum 34 is installed in (see figure 3) in this tube.Condenser lens 36 is a plano-convex lens preferably, but also can be globe lens, convex lens or post lens etc.This 34 has one by aperture door screen 38 end walls that form, and this aperture door screen passes this end wall.This tube 34 is installed in the pipe 30 and is used in this Guan Zhongzuo longitudinal sleeve tubular type motion.Lens 36 are positioned near this end wall of tube and install to such an extent that move with this tube.The tube and the position of lens are fixed with respect to the position of diode, and normally by bonding or clamp on this setting position, thereby one side is between lens and aperture door screen, and the distance between lens, aperture door screen and diode has just been known on the other hand.A wound spring 37(sees Fig. 3) be positioned at the tube and the centre of pipe and prolonging their and stretching, and an end circle is pressed on the diode, and other end circle is pressed in the planar side of these lens.This spring forces lens pressing on the end wall of aperture door screen, with respect to the aperture door screen stationkeeping of lens is lived thus.

Assembly 28 itself does not form part of the present invention, and in fact, it has been described in US4816660 and is claimed, and with reference to this patent, the situation of the further structure of this assembly, effect and operating aspect can be learnt.Just enough below understanding for the present invention: this assembly 28 comprises a solid-state laser diode 32, be used to produce and propagate the laser beam of an incident, can be at invisible or visible optical range, and the combination of condenser lens and aperture door screen be used for making laser beam to amass or light beam spot to the beam cross section that certain sectional dimension is arranged at the operating distance scope inner focusing of respective shell 12 jointly.The light beam that is focused arrives through the one scan window on aperture door screen 38 and the shell 40 and is positioned near the reference surface of shell outside, and this reference surface is along in the scope of the operating distance of output light path.

When axle 22 alternately, vibration repeatedly the time, support 26 and assembly 28 also participate in this vibratory movement in the same manner, cause thus light beam spot on the mark on the reference planes with the scanning of radian, and scan out an are scan curve thereon, being centered close on the diode of this curve.Thereby, do not re-use eyeglass with the light beam fixed fire in the enterprising line scanning of mark, and be to use the motion of the other sweep unit in the embodiment of Figure 1A, these other parts comprise laser diode 32 and optics, and they rotate around an axle that is parallel to reference surface as a unified structure.

Light portion by the mark reflected back arrives a photodetector 44 by second window 42 on the shell along return path on the direction of arrow B, it is used for the laser that detection of reflected goes out and returns the variable intensity of light of the back light part on its visual field, and is used to produce the analog quantity electric signal of the detected variable intensity of light of expression.In the embodiment of Figure 1A, photodetector 44 is fixedly mounted on the printed circuit board (PCB) 46.In the printed circuit board (PCB) 48 and 50 of circuit board 46 both sides, comprise signal processing circuit 52 and microprocessor control circuit 53, be used for analog electrical signal is converted into digital signal, and be used for this digital signal processing is become to describe by the data of read flag.The details of relevant signal Processing and microprocessor control circuit can be from reference to knowing the patent of above-mentioned same subject and the application.

The two-part many leads plug-in type electromagnetic of a kind of branch cable connector 54 utilizes its part to be electrically connected with signal Processing and microprocessor control circuit, and with another part be connected to display 55 and keyboard 56 on many leads of flexibility cable 54 ' be electrically connected.Rechargeable battery pack 58 power supplies are to the circuit in laser diode and the shell.Only be with laser diode and optics with respect to the moving of fixing photodetector, the electric power of electric battery is saved.

The device that is used to start reading preferably includes an actuation of trigger 60 that is contained on the shell 12, and some stretches out this actuation of trigger outside the shell, so that the user of hand-held this shell 12 operates it by hand.Through starting switch 62 and laser diode 32, motor 20, photodetector 44, signal processing circuit 52 and control circuit 53 are connected and start them in order to the beginning read flag this actuation of trigger when operation.Treat read flag for each, each mark that takes turns to makes the actuation of trigger action once.In case it is successfully decoded that control circuit is determined this mark, control circuit just finishes the reading of mark and the parts of previous work in shell is quit work, and makes system treat to read fully next mark.

Fig. 2 represents to be contained in Figure 1A, the first half 16 of the subassembly of conduct assembles in advance in the shell 12 of 1B various electricity, machinery and optics.For the sake of clarity, in Fig. 2, ignored printed circuit board (PCB) 46,48,50 and substrate 14 on circuit.

Refer now to Fig. 3, wherein identical with Figure 1A parts utilize identical label to represent.Repeat, oscillating motor 20 has an output shaft 22, and a support 26 that is roughly the U type is housed thereon.A laser/light assembly 28 is installed on the leg 64 of support.Photodetector 44 is installed on another leg 66 of support, and cast tension lead group 68,70 is connected to diode 32 and photodetector 44 in the circuit that is not illustrated on the printed circuit board (PCB) 48.Though shown in the figure is the cast lead, the electric connector of other type, flat cable also can use.A light collecting lens 72 is installed on the leg 64 also coaxially round assembly 28.Lens 72, assembly 28 and photodetector 44 all have a common optical axis or optical axis 74, along this optical axis, light path and light return path are conllinear, (seeing double-headed arrow 76 among Fig. 4) vibration on the garden Zhou Fangxiang that they all can replace around the axis of axle 22 as a unit.

Be shown among Fig. 4 to the operational illustrations of embodiment among Fig. 3, launch an incoming laser beam from assembly 28.On the center, this bundle is directed on the reference surface 78 at mark place along optical axis 74.Light scatters out along all directions from mark.A catoptrical part incides on the light collecting lens 72 as light 79,81 represented parts, for example on a Fresnel (Fresnel) lens and focus on the inlet of photodetector 44.This inlet can be a garden shape, (see figure 6) square or rectangle.When this unit rotates on the direction of each arrow 76, light beam spot just with the same manner in reference surface upper edge marker motion.And back light always is focused the inlet of photodetector.

The embodiment of Fig. 3 is the back reflection formula, because be not only incident beam, and the visual field of photodetector is by side by side along mark scannng.In contrast, the embodiment of Figure 1A, 1B is commonly referred to as " flying spot formula " (" flying spot ") scanner, because only be incident beam by along mark scannng, photodetector is then fixed.

Now forward on the embodiment of Fig. 5-7, similarly identical label is represented identical parts, repeats again, and oscillating motor 20 has an output shaft 22, and a support 80 is housed on this axle.It is not the U-shaped support that resembles support 26, but one L shaped and have a perpendicular leg 82.A laser/light assembly 28 is contained on this leg 82.A photodetector 44 is fixedly mounted on the printed circuit board (PCB) 46.Cast tension lead group 60 couples together the circuit on diode 32 and this plate 46.Light collecting lens 72 is contained on the leg 82 also coaxially round assembly 28.Lens 72 and assembly 28 rotate on each direction of double-headed arrow 76 as a unit, and photodetector 44 is opposite with embodiment among above-mentioned Fig. 3, is static.

Shown in diagram among Fig. 7, the incident beam that assembly 28 sends on a terminal transmitting site shines on the mark on the reference surface 78 along optical axis 84, Yi Bufen reflected light there, as light 86,88 is represented, incide on the light collecting lens 72 and focus on the end 90 of inlet 92 of photodetector 44 of a long rabbet shape, as shown in Figure 6.On another opposite terminal transmitting site, shown in Fig. 7 dotted line, the reflected light of collecting partly is focused on the other end 94 of this inlet 92, as shown in Figure 6.The light that is collected and focuses between two terminal transmitting sites moves along the length direction of inlet 92.

Embodiment among Fig. 5-7 is another kind of back reflection formula device because incident beam is along mark scannng, and the visual field of photodetector also be similar also simultaneously since the motion of light collecting lens by along mark scannng.Can utilize to make light source output power sufficiently big, and cancel this light collecting lens.

Described so far various embodiment is along the single bent mark or the scanning curve that are scanned out by read flag in one direction.Fig. 8 represents a kind of can producing at the device of stretching the scanning patter on mark more than a direction upper edge.With similarly preceding, motor 20 repeatedly drives output shaft 22 on by alternating direction shown in the arrow 76, support 26 and laser/light assembly 28.Tension lead group 68 couples together a diode 32 and a low-tension supply 96.Motor and its superstructure are installed on the horizontal stand 98 of pedestal 100.

This pedestal has other platform and is used for other parts.At horizontal stand 102 upper supports a light collecting lens 104; A photodetector 44 has been installed on platform 106 upper surfaces, the printed circuit board (PCB) 108 at signal processing circuit place has been housed on its lower surface.

Second motor 20 identical ' be installed on the vertical platform 110 with motor 20, and have an output shaft 22 ', this axle 22 ' meet at right angles with axle 22.Do not use above-mentioned superstructure, but axle 22 ' an end on a level crossing 112 is housed, thereby it is similar to the sweep unit described in the US 4496831.Axle 22 ' on the alternately garden Zhou Fangxiang shown in double-headed arrow 114, drive mirror 112.

When work, be contained in the element on each with motor 22,22 ' vibration side by side, just produce the scanning patter that a plurality of lines on mark are formed.For example, by motor 20 ' will be, produce one group thus and be parallel to each other and extend in sweep trace on the mark along moving this single scan line of y-axis shift.Utilize to change motor 20,20 ' velocity reversal and frequency, can obtain complicated scanning patter, for example Li Sa is as (Lissajous) figure.

Because the vibratory movement of laser/light assembly 28, be subjected to considerable stress on the tension lead 68 that diode and its power supply 96 are coupled together.This stress filtration that when this assembly changes direction, is produced the mechanical integrity at terminal place.In general, these stress are proportional to the distance between axle 22 and lead and the assembly tie point.

Fig. 9 is illustrated near a kind of structure that lead tie point between diode and its power supply is placed on axle adjacent to each other, has reduced the stress of loosening this tie point of attempt thus to greatest extent, and the life-span of having improved device to greatest extent.

For this reason, a rest pad 26 " is contained on the axle 22, but is placed on partially on the side of axle.Assembly 28 is contained in piece 26 " on.Printed circuit board (PCB) 116 is contained on the piece on a side of axle 22.Have three conductor bar 118a, 118b and 118c that extend along plate 116 on this plate 116.Laser diode 32 has first group of lead 68, and they are connected with each end of these buss respectively; And second group of lead 120 is connected the corresponding the other end of each bus with power supply 96.Assembly 28, wiring board 116 and first group of lead 68 1 oscillates.Be subjected to stress on second group of lead 120, but as shown in the figure, the lead tie point on each bus other end is very near axle 22, so the numerical value of these stress, compare with the situation that first group of lead 68 directly is connected with power supply 96, just descended widely.

Figure 10 represents a desk-top workstation, and one of them shell 121 has the shape identical with the first half of Figure 1A mesochite 12 substantially, and it is installed in and is positioned at common horizontal carrying plane as pedestal 123 tops on the desktop 125.With a semi-rigid flexible pipe 127 of gooseneck type shell 121 and pedestal 123 are coupled together, and this shell can manually be positioned on the orientation of any needs with respect to pedestal flexiblely, and make in its orientation that remains on these need.Therefore, can be positioned at the angle of any needs with respect to mark to be read by the light beam of launching in this shell.

Best, pedestal 123 is hollow and has signal processing circuit, and this circuit utilization is connected with mirror scanister contained in shell 121 via the electric wire in the pipe 127.Replace pedestal, this pipe also can be connected to a cash register away from an end of shell 121, on similar the point of sale device or a fixed mount, on a production line.

As described so far, this laser diode/optical module 28 itself or rotate to play scanning or deflecting action around an axis with photodetector 44.The present invention also propose with condenser lens 36 itself or with aperture door screen 28 together with respect to diode 32 with the general parallel plane of the emission light outlet of this diode in move.

Referring to Figure 11, laser diode 32 is fixedly mounted on the support 122.This diode 32 is launched a wide angle fan-shaped laser beam along optical axis 130, and is represented as light among the figure 124,126.This fan beam is extending with the plane parallel of diode light exit, and with optical axis 130 vertically extending two orthogonal planes in different angular emission.Condenser lens 36 is installed on the support 128 of the fixed range along optical axis 130 apart from diode, and this fixed range is focal length F.This support has the hole of a center on axis 130, and this hole is used as aperture door screen 38.

This support 128 as shown in figure 12, protrudes in the box 132 of a permanent magnet.A pair of spiral diaphragm suspension spring 134,136 is bearing in support 128 on the magnetic box 132.Voice coil 138 is centered around on the support 128 of box 132 inside and is limited in N(north in this box) utmost point and S(south) in the scope of the utmost point.

By making this coil 138 energisings, then under the effect of electromagnetic attraction that this coil produces and thrust, support will be reciprocating forwards, backwards in the plane vertical with axis 130 together with lens and aperture door screen, if the anaclasis of lens and aperture door screen, promptly the distance table of measuring an one terminal transmitting site by axis 130 is shown D, then can see by the laser beam displacement that reflects of light 140 representatives an angular distance A=tan ^-1D/F.

Figure 13 represents a kind of modification to spiral spring 134,136." spider " formula spring 142 that is commonly called as has curved leg 144, also can be employed.

Figure 14 represent to make lens 36 and aperture door screen 38 with the plane of the light exit plane parallel of diode 32 in the another kind of structure that moves back and forth.These lens 36 are installed on the bridge shape support 150, and it strides across and be contained on two center leg 152,154 of two E shape leaf springs 156,158, and the distance that strides across is the distance between this two leg.The outer legs 160,162 of spring 156 and the outer legs 164,166 of spring 158 are fixedly attached on the top-supported framework 170.

Bridge support 150 has the hole of a center on optical axis 130, and this hole is used as aperture door screen 38.A permanent magnet bar 172 is housed on this bridge support, and the one end is N(north) utmost point, and the other end is S(south) utmost point.A pair of drive coil 174,176 is respectively round each utmost point.

In when work, each drive coil is powered on by logical, then at each coil and N, because magnetic interaction produces electromagnetic attraction and repulsive force, bridge bracket is reciprocally moved in the plane vertical with axis 130 between the S utmost point.Figure 14 represents that this structure is in the center, i.e. shift position not.On the contrary, the embodiment among the Figure 17 that will describe below represents the shift position.Should be noted that it only is that move the upper end of E shape spring center leg.Between lens and aperture door screen assembly and diode, keep a constant distance basically.On reference planes, also just kept suitable laser beam to focus on thus.

As previously mentioned, the displacement of lens and aperture door screen makes the laser beam of being sent by diode be offset an angle A=tan ^-1D/F.This luminous point is along a movement in a curve around the lens curvature center.Might utilize the unequal length or the hardness of these spring legs that light beam spot is moved on mark in the mode of expectation.For example, this luminous point can move in straight line.

Do not use calutron, can use other device to come mobile lens and aperture door screen yet.Figure 17 represents a device identical with Figure 14, but has replaced magnetic stripe 172 with a plate 180, and this plate 120 is connected on the bridge support.This plate 180 has 182, one driving stems 184 of a lug and is connected with this lug rotationally.This bar 184 can with a pure mechanical driving device, an electro-mechanical driving device, or piezoelectric substrate also promptly a transducer that is used to convert electric energy to mechanical energy be connected so that produce to-and-fro movement.

In another modification, the middle leg 152,154 of these springs can be made by a kind of bimetallic material, and its outer legs is then made by another kind of bimetallic material.Can make the relative outer legs of middle leg produce displacement all these leg heating.

In Figure 14-17, because aperture door screen 38 moves with lens 36, the output power of laser beam can reduce in the terminal of sweep trace, and this is because the laser beam intensity that is not focused is the brightest on axis 130.Can utilize following mode to carry out electronic compensating in this power loss of end of scan: detect the reflective of the output power of light beam or aperture door screen rear surface, and by the supply current of laser diode being regulated to keep firm power output.

Another kind of scheme is illustrated on Figure 18, and wherein aperture door screen 38 keeps motionless, and condenser lens 36 is reciprocally moved.Because when lens 36 are removed axis, by the center of these lens 36, then deflection or scanning angle A have not been exaggerated laser beam.The light of the lens by off-axis 130 has bigger light distortion, but in the application that is used for barcode reading and find no remarkable influence.

These motion structures, that is: independent lens; Lens and aperture door screen are together; Lens, aperture door screen and diode are together; With lens, aperture door screen, diode and photodetector all are lightweight together, thus can make this system works in lower powered resonant condition, and the disresonance state.Because the lightweight of motion structure can obtain the very high sweep velocity and the higher sweep velocity of 40 scanning of per second grade.

Another scheme of expression on Figure 19, wherein condenser lens 36 is maintained fixed motionlessly, only is that aperture door screen 38 is reciprocating.Aperture door screen 38 is holes that make on roof 200, and this roof 200 is positioned on the sidewall 202,204, separates a distance with the support 206 that laser diode 32 is installed.This aperture door screen roof 200 can move to the left or to the right, and as shown in phantom in FIG., this motion can utilize any reciprocating movement driving device, and for example electromagnetism or Piexoelectric actuator are realized.Bimorph material also can be used in wall 200,202,204, so that move in the face of aperture door screen before lens 36.

Figure 20 represents to be installed in the laser/light assembly 28 of a compactness on the oscillating motor 20, and as previously mentioned, it is installed in the handheld housing 210 that is provided with display 212 and keyboard 214.This shell 210 has the square-section, and is provided with a superstructure at Qi Ding, and it can carry out the scanning right-hand to shell, or in another operation mode the shell left is scanned.

This shell 210 has the rectangular wall 216 at top, it by means of four screw retention that are positioned at this roof angle part install on its position.A cover 220 is installed on the end of wall.A fixing catoptron 222 is arranged in the scope of roof 216 tops cover.The inside that to cover of scanning window 224 is sealed with external environment condition and is separated.Mirror 222 is positioned in the light path of the laser beam of being launched by the laser/light assembly and with the side of anaclasis to shell, for example is refracted to the right side of shell.Collected by photodetector 44 by window 224 from the optical path that is returned by read flag.

These four screws 218 are taken off in utilization, and superstructure is changeed 180 °, insert screw 218 again, and this scanister will be as work above-mentionedly, and different is that the laser beam that is reflected by mirror 222 specifically is towards opposite side, as the left side of shell.Like this, the user of the lefthanded and the right hand all can be adapted to.

The device of representing in Figure 21 serves the same role, but also directive right side or directive left side of the light beam of wherein launching.A garden shape roof 228 is arranged on the shell 226 of a garden column section, a cover 230 at this wall upper support.A scanning window 232 makes cover 230 sealings.L shaped locking plate 234 drawdown from the roof 228 is got off, and on illustrated position, locking plate 234 is locked together in set on the shell 226 garden sidewalls hook 236.Be installed in the shell 226 at the same laser/optical module shown in Figure 20.Laser beam passes to right-hand in Figure 21.

In order to make user adaptation, roof 228 and cover 230 and can forward on the position of dotted line locks together up to locking plate and unshowned and hook 236 another hook every 180 °.On this latched position, laser beam in Figure 21 to left.Locking plate rotationally with two hooks in one or another is sealed by pressing type compared with taking off and screw in the screw Figure 20 being described, operation is wanted easily.

In all various embodiment, the mirror-free type scanister is very compact dimensionally.It allows this device can be manufactured as module, and this module can be installed in many dissimilar laser scanning systems.This module can advantageously comprise a laser/light assembly that is contained on the support, for example a kind of reciprocating type sweep unit, and with a photodetector, all these parts all are connected with an electric connector, are electrically connected so that module can form with other electric parts.

Shown in Figure 22 and 23, this mirror-free type scanister is installed in the shell 250 of a garden cylindricality electric torch type.In the preferred embodiment, the diameter of shell 250 is one inch order of magnitude.In addition, identical parts are represented with identical label.

Starting switch 62 is positioned on the circuit board 48, and an action button or trigger 60 are arranged, and it passes the garden cylindrical side wall of shell and outside protruding slightly.The position that this trigger 60 is installed is used for the finger with the user, and especially the merging of thumb kissing is pressed by this finger, as shown in FIG..

Laser/light assembly 28 penetrates laser beam the garden shape window 252 of shell 250 front ends.Light by the mark reflection returns and is detected by photodetector 54 via this window 252.Installation electric battery 58 preferably is installed in the rear end of shell 250.

As shown in figure 24, any above-mentioned mirror-free type scanister can be installed in one box-like 254, and this box can be by near wearing wrist 256 on user's arm with 258 to small part around wrist.This preferably is made up of a plurality of extendible chain links with 258, but also is made of a resilient material or a rigid material, and an end of band removably connects, similar to belt or watchband.

Identification by article can be started reading automatically, or can manually start reading with the motion of operator's hand.For example, a starting switch 260 has a stock 262, and this stock is installed in rotation on the shell 254 and from its side and stretches partially.This stock 262 stretches in operator's the thumb and the space between the forefinger.The operator rotates this bar 262 with finger and just makes the reading starting.Because ergonomics, preferably or the position of this bar 262 is located near the forefinger place, shown in solid line among Figure 24, so that bar can be moved upward; Or or the position of this bar 262 is located near the thumb place, shown in the dotted line among Figure 24, so that bar can be moved downwards.

The utilization of another kind of arm belt shell is with 253 to wear near wrist and round wrist, shown in Figure 24 A.The display 257 of a keyboard 255 that is used for data inputs and a display message is arranged on the shell 251 and makes it face the operator.One penetrate that optical window 259 is positioned near the wrist and from operator's the back of the hand side direction depart from out so that light beam of launching and/or reflected light from the hand side by this window.Starting switch 261 be installed in rotation on wrist on the shell 251 near, and at wrist operator's the back of the hand outwards on the path of motion during with respect to the arm deflection.In preferred a use, the operator points to the mark that continues with his or she outwardly directed forefinger 263, utilizes this forefinger of swing in the space of crooked wrist 256 between a P1 and P2 with whole hand, so that to mark scannng.

Shown in Figure 24 B, another arm belt shell 265 utilizes is with 267 to wear near wrist and round wrist.Keyboard 269 and display 271 are arranged on the shell 265.In the case, penetrate optical window and be positioned near the wrist and be higher than operator's the back of the hand, with the light beam that allows to penetrate and/or reflected light by the back of the hand top.Starting switch 273 be installed in rotation on wrist on the shell near, and when wrist flex wrist inwardly on the path of motion.Equally, the operator is outwardly directed forefinger 263 arrow marks 275, and in the space of whole hand between a P3 and P4 this forefinger of swing so that to mark scannng.

Except that these embodiment, also can use a kind of lever switch to start scanning therein, also a switch can be located at scanner/terminal is worn being with to realize the starting scan function on the wrist.When being installed in the inside of band, this switch just can make this switch starting by the suitable motion of user.

As the modification of lever or pressure operation switch, can use electronic starter to start scanning.Article induction (promptly when article start during near scanner) or sound start (starting when the user says " scanning ") and also can be used.

" gloves " formula scheme can will or be removed except that the adding of the functional module the scanning quite simply.These modules can comprise these functions: as keyboard, and display, communication, power supply, storer, and data storage are printed, or other reader technology (as track part), and these modules can insert or take off from the electric connector that is arranged on the gloves interchangeably.These gloves also can make these modules suitably locate so that the user can the utmost point easily near with use.As an example, display as shown in Figure 24 can be placed on the inboard of arm or wrist, and a keyboard layout is got easier to be approaching.

Device among Figure 24 A, the 24B can be used as complete, independently data terminal.

Refer now to Figure 25, a box-like shell 277 similar to Figure 24 mesochite 254 is combined in a band on operator's gloves 279 on hand.These gloves 279 are preferably made by a kind of resilient material.This shell has a pedestal 281, and it is embedded in the gloves and remains on top between operator's dorsal side wrist and the elbow joint.Light beam of launching and/or the reflected light that returns are by the top of operator's finger.Read starting can utilize article identification automatically or operator's hands movement manually carry out.For example hand-to-hand grip can make the pressure transducer that embeds in gloves produce a trigger pip to be used for starting and to read.

Forward Figure 26 now to, a kind of finger that comprises scanister is worn formula shell 264 and is utilized ring shape support 268 to be bearing at least on user's the finger 266.A kind of compact especially scanister, wherein light source and sweep unit are set on a monolithic semiconductor and/or the eq effect thing, it is described in just on the docket the U. S. application, its full content at this in conjunction with as a reference.The light beam of launching is by the top of user's finger, and as described above, reading can automatically or manually be started.

Figure 27 represents a kind of portable checkout station, and scanister and other point of sale annex are housed therein.This station 270 comprises: a wheel car 272, supporting a scanister by car below an X shape window 274 on this facing roof; A keyboard 276 that is used to import the data relevant with the product that is loaded with mark to be scanned; The display device 278 that frame is high is used to show the data relevant with product; A scale 280 that is used for the scale product weight; A printer 282 is used for the print paper receipt or is attached to label on the product; The support 284 of a bag is used for bag is remained on the position that stands up of the product that is suitable for packing into; An envelope mouthpart 286, utilization heat, amplexiform or similar fashion is sealed pocket; A storage box 288 is used for temporarily depositing the product that has packed.A handle 290 can make client stand and shift another place onto from one: carry out along the passageway of retail shop usually.

Figure 28 represents a traditional steel wire frame shopping cart 292, and the scanister that is arranged in the rifle shape handheld head 294 is housed on this car.Be clearly shown that a buckle type support 296 by Figure 29, it is preferably made by a kind of resilient plastics, and the wall of this support surrounds a lasso 298, deposits a rifle shape 294 therein.This support 296 has leg 300, and their hasps also flexibly are clamped on indivedual steel wires 302 of steel wire frame trolley 292.Be placed with a rubber-like absorbing pad 304 in this lasso 298, it can protect this shell of 294, when extracting support out or putting into support it is avoided by indentation or damage.

Equally as shown in figure 28, this support is installed on sidewall in rear portion of this trolley, thus, in order to avoid when a plurality of purchase hand push gloves are put together, make support and/or scanner head undermined.The place ahead that collapsible display device 306 is installed in this trolley is used to show the data relevant with the commodity that are loaded with mark to be scanned.

Refer now to Figure 30, a point of sale sales counter 308 for example is a kind of delicious prepared food platform, has multiple ticbit such as fish 310, meat 312, and potato salad 314, cheese 316, Italian intestines 318 just are listed as the selection classification of some demonstrations here.Every kind of food is provided with a bar code label individually.For example flag 320,322, are loaded with bar code label separately on 324,326,328, when using optoelectronic scanning, and decoding and when reading, these marks have just been represented food 310,312,314,316,318 respectively.

Sales counter 308 also comprises the cash register 330 of such type: it has a traditional cash drawer, a keyboard, a display, a paper receipt band assembly, and an antenna 332, this antenna is communicated by letter with the antenna 334 of the scanner 336 on radio frequency and the counter top.A salesman at station, sales counter 308 back, this salesman operates scanner 336 and cash register 330.

This scanner 336 is a kind of remodeling shown in Figure 10, and it comprises an operating head 338 that is installed in semi-rigid flexible tube 340 1 ends, and the other end of pipe is connected with a pedestal 342.344, one displays 346 of a keyboard and a card reader are housed on this operating head, a notch 348 is arranged on this head, user's magnetic code card, for example borrowing or lending money card, credit card or fine card will be by this notch.On pedestal 342, be provided with a platform scale 350; An electronic surveillance anti-theft tag failure device 352; A printer has a hole 354 on it, paper tape and/or machine-readable and/or people read label will be through this hole.This weighing-appliance has the scale platform that is located in the pedestal 342 roof planes.This failure device is installed in the pedestal, and the anti-theft tag that is used to product is provided with changes state.Printer also is contained in the pedestal, is used for from the hole 354 be hit by a bullet out paper tape and/or commodity adhesive labels.

In use, client comes this sales counter 308 fronts, and selects a part of wanting a certain special food, and for example salami 318.So the salesman downcuts this part food and on scale 350 its weight of scale, and scanner 338 aimed at flags 328, tell system by the food variety of scale, in fact be sausage.Therefore this just light identification product mode has prevented operator's error, and product ID is imported in this error by hand in known system have generation often.

According to food variety and its weight, there is this machine data of unit weight pricing information memory block to one and inquires that so printer 354 just prints a label, this label is used to be attached to this part of sausage, normally be attached on its paper of bag.

In the weighing process, the salesman will check display 346 and whether correctly discern food with observation, or with manual touch control keyboard.After label sticks on the food, just can be with a credit card by reading notch 348 so that client is kept accounts.

This scanner 338 is not necessarily used wireless communication with cash register 330, also can connect with lead.Similarly, scanner 338 is not necessarily mechanically with pedestal 342 supporting, also it can be installed on a support or the similar support, can install regularly or movably.

The present invention only is not confined on the cupboard, because all available aforesaid way of any commodity is read optically.In a retail level, for example in the clothing shop, anti-theft tag failure device 354 will be more useful.

Figure 31 represents that one is removably mounted on one and is the rifle shape head 360 on the preceding described flexible arm 362.At an end upper support of arm 362 part 364 of electro-mechanical connector 366, the mating part 368 of this connector is bearing on 360.Therefore, this operating head 360 can take off as the hand-held head, or is used to the purpose of repairing and safeguarding.The other end of this arm 362 is connected with a pedestal 370, props up to be placed on the carrying plane 372.In the workstation pattern, on the mark of the beam alignment of ejaculation below being positioned at operating head, perhaps in hand-held mode this beam alignment on the mark in hand the place ahead.

Figure 32 represents to be applicable to another device of righthanded and lefthanded user, as discussing in conjunction with Figure 20 and 21 in front.A foregoing laser/light assembly 28 is vibrating on the direction shown in the double-headed arrow 374 when scanning.A light guide member 376, it is preferably with what can light transmissive material do, is placed on the light path of the light beam that sends from assembly 28.By means of an outwardly directed handle from shell 378 these parts 376 are positioned in shown in position shown in the solid line or the dotted line on the position.In the time of on solid line position, these parts 376 direct the light beam into and depart from right-hand about 10 ° to the 15 ° orientation of original straight line path, to be fit to left-handed user.In the time of on dotted line position, these parts 376 direct the light beam into and depart from about 10 ° to the 15 ° orientation of original straight line path left, to be fit to dexterous user.

Should be understood that, every kind of above-mentioned parts, or two or more lump together also and can make effective application in being different from the other type structure of said structure.

Though the present invention carries out diagram and description with the form of implementation with removable laser, optical system and sensing element Mirrorless scanners with movable laser, optical and sensor components, this does not mean and is limited on the described details, because in office where face does not depart from spirit of the present invention can make kind of modification and structural change.

Need not further analysis, main points of the present invention have been showed in above description so all sidedly, so that other people utilize existing knowledge to be easy to the present invention used in the various application and go, if he from the viewpoint of prior art do not ignore the present invention general with the real basic architectural feature of special aspects.Therefore these application should also it must be understood that become be with the implication and scope of following claim equivalence in.

As new invention and need be documented in the appending claims by the content that patent certificate is protected.

The present invention includes following embodiment:

1, a kind of scanister that is used for reading the photo-scanning system of mark with different light reflectivity parts, it comprises:

(A) be used to launch a light source part of light beam;

(B) optics is used for proofreading and correct optically light beam and with near light beam mark the reference surface outside light path is registered to the system of being positioned at;

(C) optical detector components, it has a visual field and is used for detecting at least the part of the variable intensity light that is reflected by mark, and is used to produce the electric signal of representing detected light intensity;

(D) sweep unit, one that is used at least the light beam and the visual field scans;

(E) electric connecting part is used for from the optical detector components exporting telecommunication number;

(F) all described parts are installed in together and have been constituted a compactness in the common assembly, the scan module of light weight; And

(G) scan module is installed in the shell of isomorphism type not in the interchangeable modules mode.

(1) according to 1 described device, one of them shell is to have a keyboard, the handheld terminal of a display and a rechargeable battery pack.

(2) according to 1 described device, one of them shell comprises a reading control assembly that is used for manual starting scanning.

(3) according to 1 described device, one of them shell has the Cylinder shape and has suitable size of being handed by the user.

(4) according to 1 described device, wherein erecting device comprises and is used for a shell is bearing in device on user's wrist.

(5) according to the device of described (4), wherein fulcrum arrangement comprises a band that centers on user's wrist at least in part.

(6) according to 1 described device, wherein erecting device comprises and is used for a shell is bearing in device on user's the back of the hand.

(7) according to the device of described (6), wherein fulcrum arrangement comprises gloves, supports the part of a described shell thereon at least.

(8), wherein install to put and comprise a shell is bearing in device on user's finger according to 1 described device.

(9) according to the device of described (8), wherein fulcrum arrangement comprises a ring of pointing around the user at least in part.

(10) according to 1 described device, wherein fulcrum arrangement comprises a shell is bearing in a device on the removable trolley.

(11) according to the device of described (10), wherein trolley is the shopping cart with a support, is keeping a removable shell in this support.

(12) according to the device of described (10), wherein trolley comprises a keyboard, a display, a scale and a printer.

(13) according to the device of described (10), wherein trolley comprises the support of a bag, in order to bag is remained on vertical position, and an envelope mouth device that is used for the envelope mouth.

(14) according to 1 described device, one of them shell is installed on the end of a flexible arm, and this arm is used for regulating the position of the relative mark of described this shell, and described shell comprises a keyboard, a display and a card reader that is used for the reading coding card.

(15) according to the device of described (14), a wherein said shell comprises a scale and a printer.

(16) according to the device of described (14), a wherein said shell comprises a monitoring label failure device.

(17) according to the device of described (14), wherein erecting device comprises a dismountable electro-mechanical connector, and its part is on the described end of arm, and a mating part is on a described shell.

(18), comprise also a shell is transformed into the device that strong hand for the user uses that described converting means comprises the device on that directs the light beam into two routes according to 1 described device.

2, a kind of scanning system that need not hand that is used to read the mark with different light reflectivity parts comprises:

(A) has the shell of a window;

(B) the optoelectronic scanning apparatus that starts in shell is used for light beam injected to through window and is used for passing marker on the mark to be read, and is used for the variable intensity light that is reflected by mark is detected the electric signal of representing mark to produce;

(C) be used for shell is arranged on device on operator's arm; And

(D) utilize operator's palmistry that the starting device that scanner device begins to read to mark is started in the motion of arm.

(19), comprise also in order to the device of hand input-data and be used for the display device of display message that described data input device and display device are installed on the shell, the scanner and the data terminal that form a whole with scanister together according to 2 described systems.

(20), also comprise near the window that is positioned at operator's wrist, and by outgoing beam wherein, this light beam is on the roughly direction that is aligned in the forefinger indication that stretches out along the operator above operator's the back of the hand according to 2 described systems.

(21) according to 2 described systems, wherein starting device comprises a bending energy that utilizes operator's wrist is changed it between on off state starting switch.

(22) according to the system of described (21), wherein this switch comprises be installed on the shell one movably annex.

(23) according to the system of described (22), wherein this annex is installed in rotation on the shell and covers on the back of the hand of operator.

(24) according to the system of described (22), wherein this annex be one be contained on the shell and from shell-side to a rotatable stock that stretches out partially, described stock extends between the forefinger and thumb of operator's hand.

3, a kind of method that is used to read the mark with different light reflectivity parts may further comprise the steps:

(A) the started photoelectric scanner that will have a window is arranged on an operator's the arm; And

(B) utilize operator's palmistry to start this scanner,, scan this mark, and detect the variable intensity light that reflects by mark, be used to produce the electric signal of representing mark so that light beam is injected on the mark to be read through this window for the motion of arm.

(25) according to 3 described methods, wherein set up procedure is to utilize the outwardly directed forefinger alignment mark of operator, and realize in the space above the inswept mark of forefinger in operator's wrist flex.

(26) according to 3 described methods, wherein set up procedure is to be covered on the back of the hand of operator by the annex with a starting switch to realize.

(27) according to the method described in 3, wherein set up procedure is that a annex with starting switch extends between the forefinger of operator's hand and the thumb and realizes.

Claims (4)

1, a kind of scanister that is used for reading the photo-scanning system of mark with different light reflectivity parts, it comprises:

(A) be used to launch a light source part of light beam;

(B) optics is used for proofreading and correct optically light beam and with near light beam mark the reference surface outside light path is registered to the system of being positioned at;

(C) optical detector components, it has a visual field and is used for detecting at least the part of the variable intensity light that is reflected by mark, and is used to produce the electric signal of representing detected light intensity;

(D) sweep unit, one that is used at least the light beam and the visual field scans;

(E) electric connecting part is used for from the optical detector components exporting telecommunication number;

(F) all described parts are installed in together and have been constituted a compactness in the common assembly, the scan module of light weight; And

(G) scan module is installed in the shell of isomorphism type not in the interchangeable modules mode.

2, a kind of assembly method that is used to read the photo-scanning system of the mark with different light reflectivity parts may further comprise the steps:

(A) launch a light beam by a light source part;

(B) proofread and correct the light beam that produces by light source part optically, and along light path with this beam alignment outside being positioned at system near the mark the reference surface;

(C) utilize optical detector components to detect the part of the variable intensity light that reflects by mark at least, and produce an electric signal of representing detected light intensity with a visual field;

(D) utilize a scanister at least one in the light beam and the visual field to be scanned;

(E) utilize electric connecting part electric signal to be derived from optical detector components;

(F) be assemblied in all described parts in the common assembly together and constituted a scan module compactness, light weight; And

(G) scan module is installed in the shell of isomorphism type not with the interchangeable modules mode.

3, a kind of scanning system that need not hand that is used to read the mark with different light reflectivity parts comprises:

(A) has the shell of a window;

(B) the optoelectronic scanning apparatus that starts in shell is used for light beam injected to through window and is used for passing marker on the mark to be read, and is used for the variable intensity light that is reflected by mark is detected the electric signal of representing mark to produce;

(C) be used for shell is arranged on device on operator's arm; And

(D) utilize operator's palmistry that the starting device that scanner device begins to read to mark is started in the motion of arm.

4, a kind of method that is used to read the mark with different light reflectivity parts may further comprise the steps:

(A) the started photoelectric scanner that will have a window is arranged on an operator's the arm; And

(B) utilize operator's palmistry to start this scanner,, scan this mark, and detect the variable intensity light that reflects by mark, be used to produce the electric signal of representing mark so that light beam is injected on the mark to be read through this window for the motion of arm.

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