The specific embodiment
Below based on accompanying drawing specific embodiments of the invention are further elaborated.Should be appreciated that specific embodiment described herein as just example, the protection domain that is not intended to limit the present invention.
See also Fig. 1, the centrometer 10 that shows the embodiment of the invention one, it comprises be used to the support 11 of wearing, also comprise control unit and the display device of being located on the support 11, the display device of present embodiment comprises left display screen 12 and right display screen 13, control unit and display device electrical connection are used for controlling left display screen 12 and right display screen 13 shows the pattern that vision-based detection is used, and record vision data.
As shown in Figure 1, centrometer 10 comprises the control device 14 with function button.The control unit of present embodiment be arranged at one by data wire 4,5,6 with display device (as respectively with left display screen 12 be connected display screen 13 and be connected) in the control device 14 that is electrically connected, thereby among the embodiment of Fig. 1, control device 14 be one by data wire 4,5,6 and display device electrical connection and be built-in with the controller 14 of control unit.
Support 11 has be used to the location structure of wearing time location.By location structure support 11 is positioned the same position of relative human eye, no matter measure repeatedly, comes the position of locating support 11 relative human eyes when picking and placeing according to location structure.As shown in the figure, support 11 is for having the spectacle frame of two picture frames 110, and left and right display screen 12,13 is installed in the picture frame 110.Support 11 also has two legs 112 and nose support 113, for example can be two mirror feet of spectacle frame, is worn on the ear by two legs 112, and nose support 113 is supported on measured's the bridge of the nose, as wearing spectacles.Left and right display screen 12,13 can adopt display screen commonly used, such as LCD, LED, OLED etc., and display screen also has drive circuit.
As shown in Figure 1, location structure comprises a plurality of locating holes 114 that are opened on the support 11, and in another embodiment, location structure comprises is located at a plurality of positioning convex on the support 11.Take locating hole 114 as example, quantity is preferably three in the present embodiment, is arranged at respectively on two legs 112 and the nose support 113, can realize so accurate location or the para-position of the relative human eye of support.During measurement, worn support 11, when adjusting to satisfactory position, namely corresponding to the position of locating hole 114 at people's marking on the face, aim at this mark by locating hole 114 when wear support 11 next time like this, when namely realizing each the measurement, support 11 is positioned at same position, the convenient detection improved accuracy more effectively.
As shown in Figure 2, the control unit of present embodiment comprises for the instruction that receives control device 14 (present embodiment is controller 14) and carries out signal processing and send processor 16 and the display screen decoder module 17 that shows control command.Processor 16 also for the treatment of the vision data that records to obtain vision parameter.Display screen decoder module 17 and display device (namely with left and right sides display screen 12,13) electrical connection are used for the demonstration control command that receiving processor sends and are decoded into the shows signal order.Processor 16 and control device 14 are connected by data wire.
As shown in Figure 3, present embodiment take pattern as corresponding to around the pupil and scalable transmission region pattern as example, be generally the pattern of measuring the interpupillary distance relevant parameter, two kinds of different scalable transmission region pattern 151a and 151b of right and left eyes shown in Fig. 3, wherein, the scalable transmission region pattern 151a that present embodiment is set left eye is initial pattern (being full impregnated light or basic full impregnated light), and right eye is the scalable transmission region pattern after adjusting (namely roughly at the light-transparent pattern of pupil region).
Processor 16 also is used for controlling scalable transmission region pattern and (is preferably initial pattern 151a, certainly also center pattern arbitrarily) make transmission region convergent-divergent and move to and pupil 19 relevant positions by the tracking cross (not shown) that control device (being controller 14) function button is controlled the transmission region center, processor 16 is again according to two tracking cross positions on the display screen of corresponding right and left eyes, the position of the cursor when tracking cross is watched attentively with respect to whole display screen axis and horizontal position or different directions on the display screen of corresponding right and left eyes draws the eyes interpupillary distance, simple eye interpupillary distance, high or the multi-direction relative parameter between the pupil position when watching attentively of pupil.
As illustrated in fig. 1 and 2, left and right sides display screen 12,13 data wire 4,5 concentrate on a place, for example are positioned at a side of picture frame 110, and a data interface 7 is set in this side, thereby can be connected with controller 14 by data wire 6.Controller 14 (being control device 14) has a control panel 140 and places on the control panel 140 and carries out the key controlled circuit (not shown) that signal is connected with control unit (such as processor 16).
The function button of control device 14 comprises at the chart button, the visual pattern switching key that show the screen display vision data and key groups is looked on the left side that is respectively applied to the viewing area of the corresponding right and left eyes of control display screen and key groups is looked on the right side, and a described left side is looked key groups and the right side and looked key groups and respectively comprise cursor position key, reset key, directionkeys, full impregnated light key or zoom function key.
Please consult again Fig. 1, the function button of control device 14 mainly places on the control panel 140, comprise at display screen 12, the chart button 149 that shows vision data on 13, visual pattern switching key 150 and key groups is looked on a left side that is respectively applied to the viewing area of corresponding right and left eyes in the control display screen and key groups is looked on the right side, each key groups comprises the cursor position key, reset key 144 and 145, directionkeys 164, full impregnated light key 161, or zoom function key 162 and 163 (button label not in part the right among the figure, the fundamental sum left side, the right is symmetrical arranged button), two groups cursor position key comprises left eye cursor position key 141,142,143 and right eye cursor position key 146,147,148.Directionkeys also divides left and right sides region division, the cursor movement in the display screen of the corresponding control left and right sides., and trigger and carry out corresponding operational order with control pattern form and position by these button operations.
Pattern in Fig. 3 is as example, introduces the measuring process that the pupil of present embodiment runs instrument 10.
The first step, centrometer 10 with present embodiment is worn on measured's the head first, as wearing spectacles, adjusts simultaneously the display screen axis, the left and right sides (being the axis of symmetry) and eyes dead in line of centrometer 10, usually take multiple measurements, need by locating hole 114 in measured's head mark.
Second step, after opening centrometer 10, press left and right sides reset key 144 and 145 on the controller 14, allow the measured watch horizontal hypermetropia target (intended target attentively, such as the hypermetropia target), pattern resets to original state (i.e. two display screens 12,13 all is the full impregnated light pattern of left eye among Fig. 2), again respectively by directionkeys 164 moving display screens 12, left side in 13, right tracking cross is to the reflective spot 192 at corresponding eye pupil center, the convergent-divergent transmission region, be about pupil size, obtain the relative pattern of right eye as shown in Figure 2, if reflective spot 192 does not overlap with tracking cross, should in time adjust.Adjust the suitable cursor position key of pressing, for example after the adjusting of left eye, press left eye cursor position key 141, after the adjusting of right eye, press right eye cursor position key 146, press the cursor position key namely in storage relevant position data, draw the hypermetropia interpupillary distance according to these data, be also referred to as the first interpupillary distance, corresponding reflective spot 192 is called the first left eye interpupillary distance point or the first right eye interpupillary distance point.
The 3rd step, further measure other and watch interpupillary distance or the pupil position in orientation attentively, press full impregnated light key (or pressing reset key), allowing the measured watch intended target (with different azimuth target in the step 2, such as near-sighted target etc.) attentively, more respectively mobile left and right tracking cross to the reflective spot at corresponding eye pupil center, dwindle transmission region, be about pupil size, if reflective spot does not overlap with tracking cross, should in time adjust.Adjust the suitable cursor position key of pressing, for example after the adjusting of left eye, press left eye cursor position key 142, after the adjusting of right eye, press right eye cursor position key 147, press the cursor position key and namely obtaining the relevant position data, draw corresponding interpupillary distance and with the position relationship of the first pupil.For example, by the near-sighted interpupillary distance of drawing of this step and with the position relationship of the first pupil, near-sighted interpupillary distance is also referred to as the second interpupillary distance, corresponding reflective spot is called the second left eye interpupillary distance point or the second right eye interpupillary distance point.
The 4th step, press chart button 149 after the desired parameters measurement is complete, switch to form and show each relevant parameter of pupil, namely show each relevant parameter form of pupil at display screen 12 and/or 13.
Be understandable that, can measure various vision parameters as required, for example, the interpupillary distance that calculates comprises that eyes hypermetropia interpupillary distance, eyes myopia interpupillary distance, myopia overlooks interpupillary distance, myopia and look up interpupillary distance etc. eyes are multi-direction interpupillary distance when watching attentively; Interpupillary distance that mono-vision is multi-direction when watching attentively etc.; And eyes are looked or mono-vision left eye or right eye are looked the relative position relation of light center, and many light is progressive joins the gradient that mirror is used.According to measuring needs, different cursor points can come operational label by different buttons, as coming mark position and storage by left eye cursor position key 141,142 and right eye cursor position key 146,147 in the above-mentioned steps, by more button being set such as 143 and 148 cursor points that come the labelling measurement to be.Particularly, for example, by the visual pattern switching key 150 on the push-button controller 14, to switch to different pattern displaying, as can switch to red green pattern, porous design or crack pattern, but also button of each pattern setting, to start corresponding pattern displaying.In addition, according to actual needs, control unit can comprise a memorizer, is used for data or measurement result that storage records immediately.
See also Figure 4 and 5, what show respectively is crack pattern and porous design.Among Fig. 4, the display screen of right eye shows crack pattern 152b, and left eye is complete light tight pattern 152a, so the left eye display screen is blank screen (can be used as the initial pattern of crack pattern).During test, the display screen of left eye shows blank screen 152a, shelters from left eye, and 152b shows the crack pattern.Adjust the crack to pupil center, press on the control panel 154,155 and rotate cracks to the most clear vision of patient, crack and horizontal angle namely are patient's axis of astigmatism; When checking left eye, the transposing of the display pattern of right and left eyes, namely the 152a of left eye is transformed to the crack pattern in the diagram, and the 152b of right eye then is transformed to the demonstration blank screen, uses with method and records left eye axle position.
Among Fig. 5, the display screen of right and left eyes shows respectively porous design, is illustrated as to show simultaneously porous design 153.Be used for determining whether the patient exists ametropia.When the patient is with upper pore mirror, see that thing becomes clear, illustrate that there is ametropia in the patient; Normal such as unchanged then vision.
See also Fig. 6, show the structure of the centrometer 20 of the embodiment of the invention two.The structure of centrometer 20 and embodiment one are basic identical, and element identical among Fig. 6 and Fig. 1 adopts identical label, is not giving unnecessary details at this.Two embodiment main differences are that a display screen 22 is adopted in the display device of centrometer 20, as shown in the figure, support 11 adopts and the essentially identical framework of embodiment itself, in order to wear, display screen 22 is corresponding with right and left eyes, and namely a display screen 22 covers eyes.Further, the demonstration of this display screen 22 is preferably and is divided into two zones 12 ' and 13 ', show respectively required vision-based detection pattern, see respectively for left and right sides eyes or to see through the separately pattern in a zone, two zones 12 ' and 13 ' pattern can be regulated and control respectively or Synchronization Control, can realize by control unit binding operation button, operate basically identical with embodiment one with control principle.Although present embodiment only has a display screen, the button setting on the panel 240 of the controller 24 among the embodiment two can substantially the same setting with the panel 140 of controller 14, is divided into two blocks required button is set.
See also Fig. 7, show centrometer 30 structures that the embodiment of the invention three provides.The structure of centrometer 30 and embodiment one are basic identical, and element identical among Fig. 7 and Fig. 1 adopts identical label, is not giving unnecessary details at this.The structure of the support 11 among two embodiment is basic identical, and main difference is that control unit is arranged at support 11, and is for example shown in Figure 7, and control unit 165 (comprising processor and decoder) is built in the support 11 or is attached on the support 11.Also a battery 166 is built in simultaneously in the support 11 to power to control unit 165.At this moment, the modules in the control unit 165 such as processor and decoder etc. are integrated in the chip.Control device among Fig. 7 be one with place support 11 on the remote controller 34 that is connected of control unit 165 signals.Remote controller 34 has control panel 340 and carries out the key controlled circuit (not shown) that signal is connected with being connected to place on the control panel 340 with control unit 165, and structure and the principle of control panel 340 and key controlled circuit and embodiment one are basic identical.In addition, have signal transmitting module 160 in the remote controller 34, have corresponding signal receiving module in the control unit 165.The button of remote controller 34 is the same with controller 14, has essentially identical function button.
In other optional embodiment, each ingredient of control unit 165 (such as processor 16 and decoder 17) can also be arranged at respectively in two legs of support 11 or any suitable location such as picture frame 110 or nose support 113 be interior.The signal receiving module of control unit also can be arranged at leg 112 or the positions such as nose support 113 or picture frame 110, in order to carry out the signal transmission with remote controller 34, does not so then need data line interface.
The centrometer 10,20,30 of the various embodiments described above utilizes display screen to show the vision-based detection image, and by control unit shape and the position of vision-based detection image are controlled, can accurately measure interpupillary distance, and record vision data by control unit, without manual type, guarantee the accuracy of measuring.And can measure a lot of traditional instruments measured less than parameter, the data of measurement operate conveniently extensively and comprehensively, and are also very safe to human eye.For example, this centrometer can be as required, by the distance between the center of calculating left and right sides pattern, determines that eyes hypermetropia interpupillary distance, near-sighted interpupillary distance, myopia overlooks interpupillary distance, myopia and look up interpupillary distance when interpupillary distance etc. is multi-direction watches attentively; Interpupillary distance that mono-vision is multi-direction when watching attentively etc.; And eyes are looked or mono-vision left eye or right eye are looked the relative position relation of light center, can conveniently be used for testing and measure interpupillary distance and position relationship thereof when joining two light or many light Progressive addition lens; And measure in ophthalmology medical science and research that ciliary muscle is stressed offers help, can do the multiple light purposes of looking such as red green experiment, crack experiment, aperture experiment and stravismus correction by the pattern on the control display screen.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.