CN1014578B - Multifunction strabismus tester - Google Patents
Multifunction strabismus testerInfo
- Publication number
- CN1014578B CN1014578B CN 87102898 CN87102898A CN1014578B CN 1014578 B CN1014578 B CN 1014578B CN 87102898 CN87102898 CN 87102898 CN 87102898 A CN87102898 A CN 87102898A CN 1014578 B CN1014578 B CN 1014578B
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- bar
- prism
- target
- strabismus
- axicon
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Abstract
The present invention provides a new instrument for multiple items of examination on the strabismus degree, the muscle strength of muscles of two eyes, etc. for the ophthalmological eye muscle specialty of medicine, which is composed of a triple prism group, a head frame, a lateral objective system, a far and near right ahead fixation system, a record system and a table frame. The instrument solves the problems of the fixing of eyes to be examined and examination utensils, the standardization of the position of a fixation object and the guide position for eye position diagnosis, and the interest of a target and uses the characteristics of the bottom-direction multi-azimuth placement and the reverse counter rotation definition of two mirrors of the rotation of the triple prism group, so the process of examination is greatly simplified. In addition, the instrument can detect dominant gradient, recessive gradient, positive combination con and negative combination con, compare the myodynamia of yoke muscles of two eyes, measure AC/A, take pictures, record eye positions, etc.
Description
The present invention is an ophthalmic diagnostic devices.
In order to treat (especially operative treatment) stravismus, the doctor will do multiple inspection.Wherein most critical be measure that the patient looks far, during close-target eye slant visibility and contrast two of the muscular strengths of eyes related muscles.For many years, the doctor is passed through and is added covering method with prism and measure exactly and suffer from an eye gradient.Finger, torch light or other article with doctor oneself are made target, draw six diagnosis eye positions and AV phenomenon diagnosis eye position roughly, determine eyes related muscles muscular strength with the position of cornea in fissura palpebrae.
Add mirror and add covering method in order to finish prism, the doctor not only to hand one at the bottom of the several piece to not necessarily identical block prism, torch rod and retaining eye plate etc., but also to repeatedly change the glass prism of heaviness in the hands, give directions target, finish frequent hoodwink action and fixing, correction patient head position for the patient.It is bigger to meet slant visibility, only adds prism at the moment not enough or disoperative child one, also needs the assistant just must finish.Thereby make whole checking process seem cumbersome, time-consuming, the expense people.As for the inspection condition, also nonstandard.As far away, the close-target of dead ahead and examined distance between the eye; Guide the target position of six diagnosis eye positions and AV phenomenon and the angle of the primary position of eye optical axis not to fix.The result differs different examiners or same each time of examiner check result.To cause the doctor be difficult for to differentiate that these differences are before and after disease performance or the testing conditions due to the disunity.
In order to avoid the frequent prism of changing in the above-mentioned checking process, external once adopted the commentaries on classics of Risley design to revolve latent oblique that prism and Maddox bar, Ste Vens adapter form by Ctevens, but it is three's simple combination spatially only, inspection speed is still not high, seem numerous and jumbled, and can only look into and conceal tiltedly, function singleness.With regard to its core component Risley axicon, the mirror degree is little, and has only the internal ring scale, and outer shroud has only 0 °, 90 ° and 180 ° of three locator cards, and this has just limited the function of whole instrument greatly.Though domestic also have a similar products like, also only is that compound mode improves to some extent, there is no substantive progressive.Also useful row's prism is checked stravismus, is about to one group and is arranged in a simple combination on the lamella lucida end of with to the prism of the different number of degrees is ascending.All these instruments all thoroughly do not solve the problem of above-mentioned existence.
The purpose of this invention is to provide a kind of simple, function many and check easily and fast comprehensive strabismus inspection tester, to solve the deficiency of present strabismus checking instrument.
The main body of this multifunction strabismus tester is the axicon group of having improved, and is equipped with accessory goal systems, recording system and stand again and has just constituted a complete multifunction strabismus tester.Though the structure of this axicon group is close with the Risley axicon, also be to paste mutually by the long right angle of shape prism, two gardens face, its neighboring toothed internal ring in inboard that respectively is connected, and be meshed with placing the regulating handle termination gear between two inner circular tooths, stud with the outer shroud of loose fit outside two internal ring again, the periphery of outer shroud has 180 ° handle runner.But its improvement is that every prism is by 15
△ Change 20 into
△, outer garden scale changes many grooves into by 0 °, 90 ° and 180 ° three location scales, and does not have a be connected polaroid (55) and by the rotatory polarization sheet (56) that elastic mechanism affects of scale face at prism, also is provided with lens hanger (17) (see figure 3) outside it.This axicon group (18) is installed in instrument platform one side by the headstock, is arranged on the opposite side of instrument platform after goal systems and recording system respectively are installed on the hack lever.Know clearly as shown in Figure 1.After so improving, just can finish complete inspection project to stravismus.This somascope has seven parts specifically: rotation rhizoma sparganic group (18), instrument platform, the headstock, side fixation object, AV target, dead ahead fixation object far away, near and recording system.Its mutual alignment relation is: instrument platform is in the bottom of somascope, the headstock is at the rear side of instrument table top, two groups of axicons (18) are fixed on the pole (9) of headstock both sides, side fixation object and AV target are fixed on the sidelong glance mark carrier bar (30), be arranged on the instrument platform middle part by sidelong glance mark traveling table (22), the reflecting mirror in side the place ahead of table top carries bar (38) and is provided with dead ahead fixation object far away, near, and recording system is installed on the mutually airborne bar (47) at position, the most preceding center of table top.Now details are as follows with this seven part:
One, instrument platform: (Fig. 1) comprise table top (8), support (3), foot rest ((2) and castor (1).Table top (8) bears other test sections of instrument.Be provided with (6), (7) two level indicators, be in the level position to guarantee table top.Column (3) is connected in table top (8) on the foot rest (2).Table top lift adjustment (4) can be adjusted (8) height, to adapt to patient's sitting height.Can establish drawer (5) under the table top, use for depositing the instrument spare part.The universal caster wheel (1) of with locking mechanism is equipped with in the foot rest below.Also can borrow spiral, the contract length of castor of Shen is regulated level vial.
Two, the headstock: (Fig. 2) comprise half garden ring-type volume frame (19), crescent chin frame (11) and two coupled headstock bars (9).(9) lower end is connected on the table top.Chin frame (11) is located at headstock bottom, by chin frame lift adjustment (10), adjusts its height, fixes with the head that adapts to different shape of face persons under inspection.
Three, axicon group (18): totally two.Every previous.Become the glasses shape.
1. the adjustment of whole mirror position and fixing (seeing Fig. 2 and Fig. 3): axicon group (18) is set in the internal ring index dial (16), and whole (16) are set in again in the outer shroud index dial (15).The internal ring side and the outer rim side of nearly doctor's side all are carved with calibration.Internal ring carves 40
△～0
△～40
△, outer shroud is carved 0 °～180 °, two index dials radially should be narrow.(15) be connected on the three degree of freedom adjusting knob (12), (13), (14) of mutual suit with a handle.(12) can make (15) up and down; (13) can make its front and back movable; (14) can make activity about it, to adapt to the person under inspection of various shapes of face, eyeball protrusion and interpupillary distance.Thereby guarantee to be subjected to the inspection eye optical axis by the ring heart.
2. fixed degree: axicon group (18) is to wear into 20 of circle by tandem two
△Block prism (18
1), (18
2) form.Eyeglass (18
1) and (18
2) long right angle face paste mutually, and at peripheral fastening one inboard toothed internal ring (16 of each eyeglass
1) and (16
2).It is the hands handle that prism knob (53) is exposed to the outer end of inner and outer rings index dial; The other end that is hidden in the internal ring index dial (16) is an and gear (53 that with two inner circular tooths be meshed concentric with its major axis
1) (Fig. 3 B, C).(53
1) with (16
1) and (16
2) tooth pitch, tooth depth all identical.When twisting (53), drive (18
1) and (18
2) 0 to be the axle center, simultaneously, constant speed, reverse rotation.When (18
1) the end and (18
2) point when overlapping (Fig. 3 B) whole axicon group be equivalent to the plate glass of a no prism effect.Its mirror degree pointer (18
3) upward refer to 0 at internal ring index dial (16)
△Twist (53), when (18
1) the end and (18
2) two mirror points also must overlap when overlapping at the end.This moment, the effect of this group prism reached greatest measurement, (18
3) refer to 40
△0
△～40
△Between other all degree all can be according to (18
3) learn at the number of degrees of (16) last indication.The mirror number of degrees word of its variation also is successive.
3. the end, is to settling and effect: on first garden side face of outer shroud index dial (15), a groove (15 is arranged
1) (Fig. 3 B).Its effect is to make (53) related (16), 0 to be axle, and in (15) circle, suitable, counterclockwise slip.Move (53), according to pointer (16
3) in the position that (15) go up indication, the end that can determine the prism group to, to measure the gradient of different oblique trouble eyes.For example (16
3) when referring to 90 ° of orientation, can get the prism of the end outside (180 °), interior (0 °), to measure inside and outside stravismus; When pointing to 180 ° of orientation, can get the prism of the end downward (270 °), last (90 °), upper and lower oblique to measure; Refer at the bottom of 90 ° to the 180 ° scope Nei Zhudushide that outwards down the prism on interior is to go up in surveying tiltedly and outer declivity; When pointing to 90 ° to 0 ° scope Nei Zhudu, the end outwards go up, interior prism down, with declivity in measuring and last oblique gradient outward.(Fig. 2 and Fig. 3).
We are (16
3) prism that obtained when going up other all spending except that 90 ° (vertically) and 180 ° (level) of indication in (15), be called wedged bottom to prism.Utilize wedged bottom to prism, can independent measurement have the slant visibility that two oblique strabismus are suffered from eye.Can remove from so at the moment a trouble, simultaneously at the bottom of two of the superpositions to the cumbersome formality of mutually perpendicular prism, and only utilize (18
3) the prism degree and (16 of indication
3) depart from 90 ° circumference angle and table look-up and learn to have the slant visibility that two oblique strabismus are suffered from each stravismus direction of eye simultaneously.Table can prepare in advance, and gauge outfit designs as Fig. 4 (2).
The rationale of two stravismus direction gradients calculating is the decomposition principle of prism vector.According to Fig. 4, the end, is (being the left side of Fig. 2 and Fig. 3) a outwards
△Prism, the A point should be moved on to A
1Because the end, to being rotated counterclockwise α °, just make A
1Moved on to A
2(suffer from the eye gradient and obtain neutralization).From A
2To AA
1Make vertical line and hand over AA
1In A
3Pass through A
2And A makes AA respectively
1And A
2A
3Parallel lines, meet at A mutually
4AA
3(Y among the figure)=a
△(AA
2) COS α °, promptly represent AA
2The number of degrees of the horizontal force of direction prism.AA
4(X among the figure)=a
△(AA
2) Sin α °, promptly represent AA
2The vertical number of degrees of direction prism.
For have two oblique, and the horizontal strabismus degree is a prism group measuring range (40
△) within the trouble eye, also can two add mutually perpendicular two at the moment respectively at the bottom of to (one (16
3) over against 90 °, and another (16
3) over against 180 °) and prism, measure to suffer from the slant visibility of eye both direction simultaneously.
Every prism group outer shroud index dial (15) all is provided with a lens hanger (17) towards a side of suffering from eye, can suffer from usefulness such as refraction of eye rectifying plate or Ma Shi bar sheet for clamping.To a side of suffering from eye, have the endless groove that is connected with outer index dial to consolidate a polaroid surely at prism, its outside also has rotatable 90 a ° rotatory polarization sheet, constitutes dark slide.The rotating mechanism of rotatory polarization sheet is to adopt elasticity pull back part, 90 ° of locator cards and push away handle, makes polaroid in groove slidably 90 °.Be rotatory polarization sheet printing opacity when resetting, change 90 ° after shading.
Carry out eyes related muscles muscular strength when when taking a picture, the axicon group before the eyes can be pushed open to both sides.
Four, side fixation object:, must guide eyes to watch attentively in totally eight orientation to six diagnosis eye positions and two AV phenomenon diagnosis positions for relatively eyes are all to yoke muscles muscular strength and observation AV phenomenon.These eight orientation and primary position of eye optical axis angle are: outer 20 °～30 ° and following 10 °～20 °, right outer 20 °～30 °, right outer 20 °～30 ° and last 10 °～20 ° of outer 20 °～30 ° an of left side, a left side outer 20 °～30 ° and last 10 °～20 °, a left side, between right outer 20 °～30 ° and following 10 °～20 °, the eyes just before between last 20 °～30 °, eyes just before following 20 °～30 °.
In order to reach the requirement of above-mentioned inspection condition, this instrument has carried out a series of designs.In order to talk clearly the principle of these designs, must introduce the center of rotation and the turning cylinder of eyeball.Straightly watch attentively forward when being in primary position of eye when two, by two center of rotation, the plane of vertical ground is called the Li Shi plane.Plane by optical axis vertical ground is the Y plane.(Fig. 5 (A)).The intersection on Y plane and Li Shi plane is the Z axle.The plane that is parallel to ground level by the optical axis claims X the plane.X plane and Li Shi plane meet at X-axis.The intersection on X plane and Y plane is Y-axis (being the optical axis).Eyeball is by the upper and lower commentaries on classics of X-axis, by the inside and outside commentaries on classics of Z axle; By the inside and outside rotation of Y-axis.The intersection point that X, Y, Z are three is the center of rotation F of eyeball.F is a minimum corpusculum in actual eyeball.Because eyeball back/forth diameter 24mm, so F 12mm place after corneal vertex on the optical axis just.
Just in the Y plane, an illusory isoceles triangle shape FMN allows the FM=FN, FG be line among the MN of its base.(Fig. 5 (1)).Allow ∠ MFN=50 °.If GF=16.5Cm calculates according to trigonometric function, GP=GQ=GFtg15 °=16.5Cmtg15 °=4.4023Cm; GM=GN=GFtg25 °=16.5tg25 °=7.6939Cm.Therefore,, the Y plane of primary position of eye is changeed 25 ° whenever outer at the moment, allow G, P, Q 3 points on the above-mentioned triangle of the patient's binocular fixation base, just just in time meet the direction of gaze of six diagnosis eyes as long as be axle with Z; Again the y plane is transferred back to original position, place between two, allow binocular fixation M and N, just just meeting the direction of gaze of AV phenomenon diagnosis eye position.
Sidelong glance mark carrier bar (30) is made up of vertical and level two arms.The axis of the major axis of two arms forms the plane of a vertical ground.We claim that this plane is the L plane.In this plane, be divided into the base with the axis top of the upright arm of (30), establish an isoceles triangle shape F M N again.Allow illusory triangle FMN congruence in this triangle and the above-mentioned Y plane.Make F ', M ', N ', G ', P ', Q ' each point corresponding one by one, and 33,34,35,36,37,5 targets are separately fixed on G ', P ', Q ', M ', the N ' with the position of F, M, N, G, P, Q each point.(Fig. 5 (B)) because the transverse arm of (30) is fixed on the carrier bar swing angle dish (28), and (28) insert in again on the carrier bar swing angle dish seat (27), (28) can serve as the axle rotation with calibrating stem jack (29).(27) being fixed in swing angle dish seat carries on the bar (26).(26) be fixed in again on the traveling table (22).Move traveling table and regulate (25), can make (22) all around activity by adjusting (20) and traveling table left and right adjusting (21) before and after the traveling table, swing angle dish seat carries the effect of bar lift adjustment spiral shell (23) in addition, rotate swing angle dish seat and carry the bar lift adjustment, can make (26) upper and lower mobile again (24).The result of above-mentioned mix of activities has driven 5 object synchronization ground on (30), but both all around, move up and down, again can (29) be spool, inside and outside rotation.The angle of rotating can be read on (27).
If utilize earlier (28) to go up the angle of indication in (27), adjust the planar direction of L, make it vertical with primary position of eye Li Shi plane, movable (24) and (25) had both allowed L plane and Y planes overlapping again; Allow △ F ' M ' N ' overlap again with △ FMN, at last again with the transverse arm of (30) 25 ° of every abtorison, allow binocular fixation 33,34,35 so, will obtain six diagnosis eye positions.If reduction L planar direction makes it earlier and primary position of eye Y planes overlapping, movable (25) move between two the L plane again, allow binocular fixation 36,37 so, will obtain AV phenomenon diagnosis eye.
In order to guarantee that △ F ' M ' N ' overlaps with △ FMN, this instrument has been done following design: establish a calibrating stem (31) as Fig. 6, an alignment surface (32) is arranged at (31) top, and there is a calibration point W over against target (33) in the central authorities of (32).The axis of W and (31) is all in the L plane.(32) parallel with (31), its distance is 1.2Cm.During calibration (30) are inserted in (29).Upright arm in (30) in the pipe at target (33) rear, is established a point source L.Upper and lower at point source L respectively adorned the convex lens S of a height
1And S
2Again at S
1, S
2Upper and lower, respectively adorn an aperture baffle plate H
1And H
2Again at H
1And H
2Upper and lower, respectively adorn the plane mirror R of an adjustable angle
1And R
2At R
1And R
2Respectively open a hole on the pipe arm of opposite position, allow light R
1W and R
2W, one from the top down; One up penetrates and intersects at the W point of alignment surface from the below.After calibration finishes, dial and go to (31).Movable (24) and (25) allow corneal vertex replace the W point.Because the summit F ' of illusory △ F ' M ' N ' in the L plane, just at the 1.2Cm place, positive back of calibration point W, and the summit F(center of rotation of illusory △ FMN in the Y plane) 1.2CM after corneal vertex just, so comprise top to bottom, left and right, front and rear when corneal vertex has replaced calibration point W() time, △ F ' M ' N ' must overlap with △ FMN, and F ' also must overlap with F.The important symbol that the W point overlaps with corneal vertex is that cornea central authorities have only a hot spot.Because if cornea two hot spots all can occur when the W point is forward and backward.(Fig. 6).
In order to make tested children cooperate well when checking, the side target can be made the interested pattern of child etc.
Five, the reflector apparatus of dead ahead fixation object: be located at the position of the place ahead of table top by doctor's left hand.By reflecting mirror carry bar (38), down mirror up-down adjustment (39), down mirror left and right adjusting (40), mirror (41), up-down adjustment on show (42), left and right adjusting on show (43) and (44) on show are formed down.(Fig. 1).(39), upper/lower positions on (42) adjustable two mirrors.(40) reach (43) and can adjust two mirror angles and horizontal level.(41) reaching (44) is two plane mirrors.Two mirrors tiltedly to placing, decide on target lamp far away (46) position height by the minute surface angle.Purpose is to guarantee that (46) imaging is being subjected to examination eye dead ahead (Fig. 7).
Six, dead ahead fixation object far away, near: (Fig. 7)
1. target far away is located at patient's distant place, positive back upper place.When indoor light is dark, can adopt luminous source, when indoor light is bright, can adopt non-luminous point target, also can adopt similar sidelong glance target to comprise the target group far away of 9 targets, the position angle homonymy target of each target.As adopting color lamp, the gauge tap of these 9 lamps should be installed in doctor's nearside, with handled easily.
Target (46) far away is projected to the V point of (44) on show, is reflected then, advances to down the u that mirror (41) is located along Vu, enters from n along uF to be subjected to inspection eye F again.If (46) to V be 4.67 meters, Vu is 1 meter, u to F is 0.33 meter.So being subjected to examination eye observed from (41) (46 ') is 6 meters from F.Inspection person's figure is shelter target not.
2. close-target (45): be to be contained in down the mirror below, from the little electric light source of being examined 0.33 meter of eye.
Adjust the angle of upper and lower two mirrors, make (46 ') reach on (45) the two targets one infra mirror bottom, under the infra mirror bottom, both are near more good more from bottom.The doctor is positioned at the own nasion in (45) and spies on patient's eye position afterwards in the face of the patient, with polarisation retaining eye plate by the arbitrary eye that hides the patient to do inspection.Also can borrow (45) row according to shadow method bigness scale eye position.
Seven, camera and fixture: (Fig. 1) camera (52) is established the Radix Rumicis close-up lens and is loaded on camera direction and regulates on (51).(51) refill on camera horizontal adjustment (50).(50) being loaded on the camera front and back again regulates on (49).(49) be loaded on again on the camera lift adjustment (48).(48) be fixed on the mutually airborne bar (47).(47) be fixed on the table top (8).By with adjusted, camera can adjust arbitrarily, to light, with the photographic recording of satisfaction guaranted.
Relatively, this instrument has following advantage with existing technology (only with piece or row's prism): 1. objective measurement condition standard (comprise that dead ahead is far away, the direction of gaze of close-target position, 6 diagnosis eye positions and AV phenomenon diagnosis eye position), stable (comprising the main test section of patient's head and instrument) are so check result is reliable.2. high efficiency: as doing slit lamp examination.Doctors and patients sit facing each other, and the breakdown telegraph key, stir the prism swing handle, carry out the hoodwink observation and the record number of degrees, as the moving slit lamp handle, spot alignment cornea centre, rotation sidelong glance mark carrier bar transverse arm, unrestrained patient's fixation object, observe cornea of both eyes position in fissura palpebrae, reach a conclusion very soon.3. strengthened the cooperation of child to checking.It is because of having two, and is promptly fast, does not invite the child tired; Two is target entertaining, and captivation is big, reliable results.4. reduce numerous frequency and changed the cumbersome of prism; Having reduced the unnecessary position of doctors and patients moves.5. recording condition is stable, and record is reliable, and unmanned is factor.6. except looking into strabismus degree, AV phenomenon, comparison eyes yoke muscles muscular strength, also have other multinomial purposes.Can look into tiltedly latent as on lens hanger (17), adding the Ma Shi bar; Remove the Ma Shi bar, it is converge like the spokes of a wheel at the hub to look into positive and negative fusion, surveys the AC/A value.On (17), add positive and negative concave-sphere and look into comparative adjusting and converge like the spokes of a wheel at the hub, to check effect with negative eyeglass treatment chamber ceasing external oblique or the like ...7. compare with axicon on the old-fashioned convergiometer that passes through usefulness, have measuring range big, can obliquely lay at the bottom of the prism, to check two oblique troubles each oblique gradients simultaneously, correcting lens can be placed the first-class multiple advantages of instrument.Compare with the Shi Shi determinator that passes through with on the latent obliquimeter, big, the convertible pupil of measurement range is also arranged apart from, advantage such as easy to operate.8. this instrument can be used in less room (span is less than 6 meters), reaches 5 meters as long as last minute surface and angle, room hang the oblique distance of target lamp part far away.9. can avoid disperseing person under inspection's attention: on show of angle, room and instrument, many clears and live animal are so reflectance target is simple in the following mirror.This is with in big room during with direct target observation far away, owing to other people relatively will get well at the situation of disperseing patient's attention of walking about in the room.10. hoodwink is convenient.
Embodiment, this example is through on probation, comparatively Man Yi multifunction strabismus tester.The foot rest of stand is " X " font, becomes with cast iron casting in the lump with pipe shape lower pillar stand, and upper pillar stand is the steel tubule, can insert in the lower pillar stand, is screwed tight solid by the adjusting on the lower pillar stand.A universal caster wheel is respectively adorned in foot rest " X " font termination, and castor is other respectively to have a height to regulate the spiral shell pad.The upper pillar stand upper end is connected with irony rectangle table top, and mesa dimensions is 600 * 800 millimeters.Adorn a lateral level and a vertical levels instrument on the table top.Two irony drawers are adorned in the table top below.By nut twist solid on table top 12 millimeters of two φ of the intermediary headstock bar of a side, length is 500 millimeters round steel pipe, the semicircular volume frame that its upper end is connected high 30 millimeters, thick 3 millimeters.A steel bar is overlapped in the bottom of bar between two hack levers, at the central authorities of the bar crescent chin frame that is connected.The chin frame can be made up-down adjustment by steel bar by regulating spiral shell.The prism group is by 20 of 30 millimeters of two diameters
△Circular optics prism, long right angle face pastes mutually, and there is tooth its each fastening inboard of periphery, and the outside is the steel loop of ring, ring width 2mm, nearly doctor's side of ring is carved with 40
△～0
△～40
△Scale is carved with pointer in the eyeglass bottom center.The lower end of the bar-shaped adjusting knob of steel is a gear, is meshed with two or three prismatical peripheral ring gear.Outer limb is a steel, and the side upper semi-circle is carved 0 °～180 °, ring width 2mm, with interior limb be loose fit.There is the chute of semicircle in the peripheral central authorities of outer shroud.The thin ring that the outer thickness in addition of outer shroud is 0.5mm is sealed, and regulating handle inserts from the hole.Every prism group is linked to each other with a stature hack lever by the Three Degree Of Freedom governor motion.The traveling table that step is arranged of table top central authorities iron plate system, 300 millimeters of directors, wide 200 millimeters, high 80 millimeters, low order is high 40 millimeters, and traveling table has the two degrees of freedom governor motion.In the nearly prism group of traveling table semicircle swing angle dish, swing angle dish seat are arranged on one side, be carved with 45 °～0 °～45 ° scales on the swing angle dish seat, swing angle dish side is fixed with the rectangular-shaped round steel pipe sidelong glance mark carrier bar of 6 millimeters thick, high 400 millimeters of φ, and the chromatic colour attribute block is 5 on the bar.Swing angle dish seat carrier bar lift adjustment spiral shell and traveling table universal adjustment handle are stretched out through traveling table in the bar bottom at the low order place of platform.Swing angle dish circle centre position has the circular hole of 6 millimeters steel calibrating stems of slotting φ, and the bar upper end is fixed with 10 * 10 millimeters alignment surface.The steel reflecting mirror of twisting 15 millimeters * 1500 millimeters of intrinsic φ by nut on the table top in traveling table left side carries bar, and a small electric bulb is adorned by having up and down and 50 * 150 millimeters plate glass reflecting mirrors are located by the mechanism of horizontal adjustment in the bar bottom below the mirror.Bar top is by having up and down and 50 * 150 millimeters plate glass reflecting mirror is located by the mechanism of horizontal adjustment, and a distant place that faces upper reflector is provided with a bulb.Twist the mutually airborne bar of steel of 10 * 300 millimeters of solid φ in reflecting mirror bar left side, camera is positioned at by universal joint and Three Degree Of Freedom governor motion and carries on the bar.
Description of drawings: Fig. 1 is the multifunction strabismus tester general illustration.Fig. 2 is the headstock and prism group front view.Fig. 3 is a prism group structural representation.Fig. 4 is prism resolution of vectors signal and gauge outfit for future reference.Fig. 5 is the corresponding relation of each impact point and F ' on M, P, G, Q, N and summit F on the isosceles triangle base illusory in the Y plane and the sidelong glance mark post.Fig. 6 calibrating installation.Fig. 7 is subjected to inspection eye and far away, close-target relative position relation.
The meaning of each label among the figure:
1. castor 2. foot rests 3. columns 4. table top lift adjustments 5. drawers 6. front and back level indicators 7. left and right horizontal instrument 8. table tops 9. headstock bars 10. chin frame lift adjustments 11. chin framves 12. prism position adjustments buttons
113. prism position adjustments button
214. prism position adjustments button
315. regulating 21. traveling table left and right adjusting, 22. traveling tables, 23. swing angle dishes before and after prism outer shroud index dial 16. prism internal ring index dials 17. lens hangers 18. axicon groups 19. volume framves 20. traveling tables carries bar lift adjustment spiral shell 24. swing angle dish seats and carries the bar lift adjustment and 25. traveling tables are regulated 26. swing angle dish seats carry 33. sidelong glance of bar 27. carrier bar swing angle dish seats 28. carrier bar swing angle dishes 29. calibrating stem jacks 30. sidelong glance mark carrier bar 31. calibrating stems 32. alignment surface and mark
134. sidelong glance mark
235. sidelong glance mark
336.AV target
137.AV target
238. reflecting mirror is regulated fixedly polaroid 56. rotatory polarization sheets of 50. camera horizontal adjustment, 51. camera universal adjustment, 52. cameras, 53. prism knobs, 54. polaroid adjusting knobs 55. before and after carrying just preceding far away target 47. mutually airborne bar 48. camera lift adjustments 49. cameras of the just preceding close-target lamp 46. of 41. times mirrors of 40. times mirror left and right adjusting of 39. times mirror up-down adjustment of bar, 42. up-down adjustment 43. left and right adjusting 44. on show 45. on show on show
Claims (5)
1, a kind of multifunction strabismus tester by axicon group, support and target configuration, the axicon group is formed the glasses shape by two axicons, and axicon is to be pasted mutually by the long right angle of shape prism, two gardens face, its periphery toothed internal ring in inboard that respectively is connected, and be meshed with placing the regulating handle termination gear between two inner circular tooths, outside two internal ring, stud with the outer shroud of loose fit again, the periphery of outer shroud has 180 ° handle runner, the prism degree is carved with in one side of internal ring, and the homonymy of outer shroud also is carved with azimuth scale; This axicon group is rack-mount; Target is some point sources; It is characterized in that every prism in the axicon [18] is 20 Δs, the azimuth scale of outer shroud [15] is 0 ° of-180 ° of even groove, the rotatory polarization sheet [56] that is connected a polaroid [55] and affects at the no scale face of axicon [18] by elastic mechanism, outside it, also be provided with lens hanger [17], this axicon group [18] is installed in a side of instrument platform by the headstock, is arranged on the opposite side of instrument platform after goal systems and recording system respectively are installed on the hack lever.
2, multifunction strabismus tester as claimed in claim 1, it is characterized in that the side goal systems is on the traveling table that two degrees of freedom is regulated, the swing angle dish that lifting regulating mechanism is installed carries bar, carry on the bar and be set with garden cylindricality carrier bar swing angle dish seat, on the seat carrier bar swing angle dish is arranged, anglec of rotation indication is arranged between swing angle dish and the seat; Swing angle dish side is fixed with rectangular-shaped sidelong glance mark carrier bar, and 5 colours or pattern target are set on the bar; Its orientation is: two just preceding optical axis places, last 10 °～20 °, 20 °～30 °, following 10 °～20 °, 20 °～30 °; The par jack is arranged on the swing angle dish, be plugged with par, be fixed with a rectifying plane on the bar.
3, multifunction strabismus tester as claimed in claim 1, it is characterized in that dead ahead is far away, the close-target system be with the carrying on the bar of stand removable mounting, be equipped with upper and lower two have about, the zero diopter reflecting mirror of left-right adjusting mechanism (angle that left-right adjusting mechanism simultaneously can the accommodation reflex mirror), on the upper reflector opposite one target light source is arranged, infra reflecting mirror below is provided with a little electric light source.
4, multifunction strabismus tester as claimed in claim 1, the feature of described recording system are that camera is fixed on the carrier bar by universal joint and Three Degree Of Freedom governor motion, and carrier bar is fixed on the table top of stand.
5, multifunction strabismus tester as claimed in claim 1, the feature of the said headstock is to be made of volume frame, chin frame, chin frame elevating mechanism and headstock bar, volume is put up half garden ring-type, be fixed on the hack lever upper end, chin frame below the volume frame is linked to each other with hack lever by elevating mechanism, and hack lever is twisted admittedly on the stand face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102898 CN1014578B (en) | 1987-04-18 | 1987-04-18 | Multifunction strabismus tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102898 CN1014578B (en) | 1987-04-18 | 1987-04-18 | Multifunction strabismus tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102898A CN87102898A (en) | 1988-04-27 |
| CN1014578B true CN1014578B (en) | 1991-11-06 |
Family
ID=4814165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102898 Expired CN1014578B (en) | 1987-04-18 | 1987-04-18 | Multifunction strabismus tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014578B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104720738B (en) * | 2015-04-02 | 2017-05-31 | 深圳市斯尔顿科技有限公司 | The method and Ophthalmologic apparatus of people's exophthalmos of orbital patients are surveyed using Ophthalmologic apparatus |
| CN104799809B (en) * | 2015-04-02 | 2017-05-17 | 深圳市斯尔顿科技有限公司 | Method for detecting human exophthalmos through ophthalmic device and ophthalmic device |
| CN106264443A (en) * | 2016-08-11 | 2017-01-04 | 刘东光 | A kind of stravismus intelligence Inspection and analysis system |
| US11291363B2 (en) * | 2018-11-29 | 2022-04-05 | Dongguang Liu | Inspection instrument with automatic strabismus detection mechanism, and inspection method thereof |
| CN109431444A (en) * | 2018-12-12 | 2019-03-08 | 广州视景医疗软件有限公司 | Eye position deviation check method and eye position deviation topographic map check system |
| CN113080838A (en) * | 2021-03-04 | 2021-07-09 | 河南省儿童医院郑州儿童医院 | Supporting device and method for strabismus inspection prism |
-
1987
- 1987-04-18 CN CN 87102898 patent/CN1014578B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87102898A (en) | 1988-04-27 |
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