CN207666577U - Pupil measuring device and transmissive member - Google Patents
Pupil measuring device and transmissive member Download PDFInfo
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- CN207666577U CN207666577U CN201720633329.0U CN201720633329U CN207666577U CN 207666577 U CN207666577 U CN 207666577U CN 201720633329 U CN201720633329 U CN 201720633329U CN 207666577 U CN207666577 U CN 207666577U
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- 210000001747 pupil Anatomy 0.000 title claims abstract description 109
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- 210000002589 oculomotor nerve Anatomy 0.000 description 1
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Abstract
The utility model provides a kind of pupil measuring device and the transmissive member suitable for pupil measuring device, and the pupil measuring device includes fixing device, illuminating part, lens and transmissive member.Illuminating part and lens may be contained within fixing device, and illuminating part is located at the focal position of lens so that the light that illuminating part is sent out, which is projeced into lens and reflects, forms directional light.Transmissive member includes at least one translucent sheet, translucent sheet is set to fixing device, translucent sheet has one group of through-hole with arranged at certain intervals so that directional light penetrates through-hole and forms the light beam at interval, to which the light beam at interval is projeced into tested pupil to weigh the size of tested pupil.
Description
Technical field
The utility model is related to a kind of measuring devices more particularly to a kind of portable pupil measuring device and one kind to be suitable for
The transmissive member of pupil measuring device.
Background technology
Pupil is located in human eye, the collapsible adjusting of size of pupil, a diameter of 2mm~6mm.Pupil functions as light
Aperture diaphragm in system is adjusted by amplifying and reducing the diameter of pupil into intraocular light total amount, to shadow
Ring retinaldisparity size.The mydriasis that the sphincter pupillae and sympathetic nerve that the size of pupil is dominated by oculomotor nerve dominate
Flesh co- controlling, therefore any position generation lesion can all influence pupil in afferent nerve and efferent nerve path.Pupil and
Corresponding nerve close association.
The generation of many diseases is with the variation of pupil size or the variation of pupil mobility, according to the state of pupil
Such as size cases can carry out the diagnosis of certain diseases.In field of ophthalmology, doctor usually carries out ophthalmology disease according to pupil status
The diagnosis of disease, for example, glaucoma, cataract, corpus ciliare choroideae inflammation etc..In neural Medicine and Surgery field, doctor is usually according to pupil
Hole state diagnoses the diseases such as optic neuropathy, tractus opticus lesion.
Currently, the measurement method of pupil diameter is mainly the following, the first is using the measurement of simple ruler or half
Plectane ruler measures, and by ruler, either semicircle board foot is placed in the position concordant with tested pupil center's line further according to ruler or half
The scale of plectane ruler is read.This measurement method needs the time expended longer, and inefficient, gauger is difficult to ruler
Or semicircle board foot is precisely directed to the center line of tested pupil.Measurement result is inaccurate reliable.
Second is picture counter point, and gauger is by a pupil comparison card with different dot diameters with measured's
Pupil is compared, and is found out and is tested pupil with the immediate dot of measured's pupil size, the dot diameter characterization found out
Size.This method depends on the subjective judgement of measured, main since everyone subjective judgement standard is different
Judging result is seen often with actual conditions there are larger error, reliability is not high, cannot represent truthful data.
The third is to use digital audio-effect processing, is tested pupil by shooting and is measured in conjunction with computer for analysis software,
This quasi-instrument price general charged is expensive, bulky, it has not been convenient to carry.
The utility model patent of Publication No. CN204813794U discloses a kind of pupillometry pen, this pupillometry pen
It is complicated, it operates cumbersome, and measurement result needs the structural parameters according to reading and pupillometry pen itself
It is calculated by formula.In other words, user can only obtain indirect measurement data when using this pupillometry pen, no
Final result can be directly obtained, this is very inconvenient for a user.In addition, being surveyed using this pupillometry pen
The mode of amount also expends the time very much, inefficient.
The utility model patent of Publication No. CN201905870U discloses a kind of pen type pupil measuring torch, this pen type
Surveyors' staff is arranged in pupil measuring torch on the shell of dipped beam source, and the light that the graduation mark and light source of surveyors' staff are sent out is flat
Row.In use, operator measures and reads result according to the light of scale and light source projects on surveyors' staff.Profit
Need the subjective judgement by operator with the measurement method of this pen type pupil measuring torch, cannot precisely read, error compared with
Greatly.
Utility model content
The purpose of this utility model is to provide a kind of pupil measuring device, by solve cannot be straight in a manner of existing pupillometry
The size of observed quantity pupil, measurement error is larger and complicated, not readily portable problem.
To solve the above problems, the utility model provides a kind of pupil measuring device, the pupil measuring device includes solid
Determine device, illuminating part, lens and transmissive member.Illuminating part is set to fixing device.Lens are set to fixing device, illuminating part
Positioned at the focal position of lens so that the light that illuminating part is sent out, which is projeced into lens and reflects, forms directional light.Transmissive member includes
At least one translucent sheet, translucent sheet are set to fixing device, and translucent sheet has one group of through-hole with arranged at certain intervals
So that directional light penetrates through-hole and forms the light beam at interval, to which the light beam at interval is projeced into tested pupil to weigh tested pupil
Size.
According to one embodiment of the utility model, fixing device includes first shell and second shell, and first shell is detachable
Ground is socketed on second shell, and illuminating part, lens and light-transmitting component are respectively positioned on inside fixing device.
According to one embodiment of the utility model, fixing device includes first shell and second shell, and first shell is scalable
Ground is socketed on second shell, and illuminating part, lens and light-transmitting component are respectively positioned on inside fixing device.
According to one embodiment of the utility model, through-hole is vertical bar shaped through-hole or circular through hole.
According to one embodiment of the utility model, the quantity of translucent sheet is two, and two translucent sheets, which are parallelly spaced, to be set
It sets.
According to one embodiment of the utility model, the clear size of opening for adjoining the translucent sheet of lens is greater than or equal to another thoroughly
The clear size of opening of light thin slice.
According to one embodiment of the utility model, transmissive member further comprises that positioning column, two translucent sheets are separately connected
In positioning column, translucent sheet and positioning column are integrally formed.
Another aspect according to the present utility model, the utility model further provide for a kind of suitable for pupil measuring device
Transmissive member, the transmissive member include at least one translucent sheet, and translucent sheet has one group of leading to arranged at certain intervals
Hole is so that directional light penetrates through-hole and forms the light beam at interval, to which the light beam at interval is projeced into tested pupil to weigh tested pupil
Hole size.
According to one embodiment of the utility model, the quantity of translucent sheet is two, and two translucent sheets are parallel to each other.
According to one embodiment of the utility model, transmissive member further comprises that positioning column, two translucent sheets are separately connected
In positioning column, translucent sheet and positioning column are integrally formed.
Compared with prior art, the technical program has the following advantages：
The utility model in the pupil measuring device by being arranged lens and with the through-hole of arranged at certain intervals
Transmissive member so that the light that the illuminating part inside pupil measuring device is sent out is reflected via lens into directional light, and further
The light beam at interval is separated into via transmissive member, the light beam being finally spaced is projeced into tested pupil, and user can be according to projection
Number of beams and the distance of beam spacing weigh the size of tested pupil.In this way, user can be direct
Read be tested pupil dimensional values, it is simple and quick, avoid traditional measurement method expend the time it is longer, it is inefficient
Problem.Second, user intuitively can measure and read tested pupil according to the interval light beam for being directly projeced into tested pupil
Dimensional values, this mode is more accurate, reduce error, avoid relying on subjective judgement and cause measurement result insecure
Problem.Third, relative to by the way of digital audio-effect processing, the pupil measuring device is simple in structure, small, is manufactured into
This is relatively low, and cheap, applicability is extensive, easy to carry.
The utility model can be facilitated by the way that fixing device is arranged to the first shell being detachably socketed and second shell
User replaces illuminating part, lens and the transmissive member being set to inside fixing device, reduces maintenance cost.
Fixing device by being arranged to the first shell and second shell of scalable socket by the utility model so that fixed
The length of device is scalable, and the illuminating part inside fixing device is set to and between lens to which user can change and adjust
Distance is to optimum state so that most clearly state is presented in the light beam for being finally projeced into tested pupil, measured convenient for user and
Reading.
The utility model is respectively provided with the two panels translucent sheet with the through-hole of arranged at certain intervals by setting, and wherein
The clear size of opening of one translucent sheet is greater than or equal to the clear size of opening of another translucent sheet so that parallel rays is saturating by one
After light slice separation is at collimated light beam, collimated light beam is further refined by another translucent sheet, to the light beam energy at interval
It is enough clearer to be projeced on tested pupil, it is convenient for user's survey measurements, improves measurement accuracy.
The utility model is by being set to one group of through-hole with arranged at certain intervals of translucent sheet so that transmissive member can
The directional light of projection is separated into the light beam of specific interval, to measure the size for being tested pupil.In addition, transmissive member is as one
The parts that can be individually produced can be installed in an internal pupil measuring device for generating directional light, and user can be voluntarily
Replace transmissive member.In this way, on the one hand greatly reducing maintenance cost, prolong the service life, economy；On the other hand it is convenient for
It manufactures and assembles.
Description of the drawings
Fig. 1 is the cross-sectional view of the pupil measuring device of the utility model one embodiment；
Fig. 2 is the dimensional structure diagram of the translucent sheet of the pupil measuring device of above-mentioned one embodiment
Fig. 3 is the schematic diagram of the pupil measuring device of above-mentioned one embodiment；
Fig. 4 is the cross-sectional view of the pupil measuring device of second embodiment of the utility model；
Fig. 5 is the dimensional structure diagram of the transmissive member of the pupil measuring device of above-mentioned second embodiment；
Fig. 6 is a variant embodiment of above-mentioned second embodiment, illustrates a kind of mode of texturing of transmissive member；
Fig. 7 is another variant embodiment of above-mentioned second embodiment, illustrates a kind of mode of texturing of fixing device；
Fig. 8 is the dimensional structure diagram of the pupil measuring device of variant embodiment shown in Fig. 7；
Fig. 9 A are another variant embodiments of above-mentioned second embodiment, are another deformation to fixing device, exhibition
The fixing device under elongation state is shown；
Fig. 9 B are the structural schematic diagram of fixing device in a contracted state shown in Fig. 9 A.
Figure 10 is that the interval light beam that the pupil measuring device provided by the utility model is sent out is projeced into tested pupil
Design sketch.
Specific implementation mode
It is described below and is served only for disclosing the utility model so that those skilled in the art can implement the utility model.With
Embodiment in lower description is only used as illustrating, it may occur to persons skilled in the art that other obvious deformations.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, equivalent program
And other are without departing from other schemes of the spirit and scope of the utility model.
As shown in Figure 1 to Figure 3, the pupil measuring device that the utility model one embodiment provides is elucidated with.Institute
It includes fixing device 10, illuminating part 20, lens 30 and transmissive member 40 to state pupil measuring device.Illuminating part 20, lens 30 with
And transmissive member 40 may be contained within fixing device 10.
Fixing device 10 is set as penholder shape shell, and 10 inside of fixing device forms a cavity 101, illuminating part 20, lens
30 and transmissive member 40 be respectively positioned in the cavity 101 inside fixing device 10.It is understood that the fixing device 10 is set
It is set to closed penholder shape shell, illuminating part 20, lens 30 and transmissive member 40 can be wrapped in fixing device 10 itself
Inside plays a protective role, while can prevent the light of illuminating part 20 sent out from leaking.Optionally, fixing device 10 is outer
Lines is arranged in surface, and the pupil measuring device is held to increase friction coefficient, when user-friendly.
Illuminating part 20 is set to fixing device 10, and specifically, illuminating part 20 is fixed on the cavity 101 of fixing device 10
It is interior.Illuminating part 20 can send out natural light.Optionally, illuminating part 20 is using can send out feux rouges, yellow light or green light etc. to human eye
Stimulate the component of smaller light.
In this present embodiment, illuminating part 20 uses point light source, as shown in Figure 1, illuminating part 20 can be a light bulb.In another
In embodiment, illuminating part 20 does not use point light source, illuminating part 20 to use divergent light source.
Fixing device 10 is arranged in lens 30, and specifically, lens 30 are fixed in the cavity 101 in fixing device 10.Thoroughly
Mirror 30 is located at the side of illuminating part 20, to which the light that illuminating part 20 is sent out can be projeced into lens 30.Illuminating part 20 is set to
The focal position of lens 30, as shown in figure 3, according to the refraction principle of light, light that illuminating part 20 is sent out be projeced into lens 30 it
After will by lens 30 reflect form directional light.In this present embodiment, lens 30 are convex lenses, and correspondingly, illuminating part 20 is a little
Light source.Optionally, lens 30 are planoconvex spotlight or biconvex lens.
In another embodiment, lens 30 are concavees lens, and correspondingly, illuminating part 20 is the light source of diverging.In another reality
It applies in example, lens 30 are the combinations of convex lens and concavees lens.It will be appreciated by persons skilled in the art that lens 30 can be convex
The combination of lens, concavees lens or convex lens and concavees lens, the utility model are not intended to limit this.
Transmissive member 40 is set to fixing device 10, and specifically, transmissive member 40 is fixed on the cavity of fixing device 10
In 101.Transmissive member 40 is located at 30 side of lens, that is to say, that as shown in Figure 1, illuminating part 20, lens 30 and transmissive member
40 interval settings successively in order.Transmissive member 40 includes at least one translucent sheet 42, and each translucent sheet 42 has one group
With the through-hole 41 of arranged at certain intervals, through-hole 41 is set as vertical bar type or circular through-hole, to reflect shape via lens 30
At directional light can penetrate through-hole 41, and since through-hole 41 is to be alternatively arranged, directional light is divided into after penetrating through-hole 41
The light beam at interval.In other words, the directional light formed via the refraction of lens 30 can penetrate transmissive member 40 and be formed with specific
Spaced light beam.It is understood that interval light beam between spacing and corresponding through-hole 41 between spacing it is consistent.
It is noted that in the application, " one group " in " one group of through-hole with arranged at certain intervals " refers at least two
It is a.
It is noted that in the application, " specific interval " in " with the through-hole of arranged at certain intervals " refers to arbitrary
Spacing between the two through hole of arranged adjacent is known and fixed, and therefore, user can be according to any two of translucent sheet
Spacing between through-hole learns the spacing between two light beams at the interval being correspondingly formed.In this way, by being projeced into tested pupil
Interval light beam can intuitively measure the size of tested pupil.
Optionally, the spacing between the two through hole 41 of the arbitrary neighborhood arrangement of translucent sheet 42 is equal and is a fixed value.
For example, the spacing of the two through hole 41 of arbitrary neighborhood arrangement is disposed as 1mm or 2mm.In this way, the arbitrary neighborhood arrangement formed
Spacing between two light beams is equal, and user can learn tested pupil according to the quantity and spacing for the light beam for being projeced into tested pupil
Size.
In this present embodiment, transmissive member 40 includes a translucent sheet 42.As shown in Fig. 2, illustrating translucent sheet 42
Dimensional structure diagram.Translucent sheet uses metal or plastic material.Through-hole 41 be vertical bar type through-hole, adjacent two
Through-hole 41 has specific spacing.When directional light penetrates the through-hole 41 on translucent sheet 42, due to having spy between through-hole 41
Fixed spacing, therefore directional light is separated to form the one group of light beam arranged with specific spacing by the through-hole 41 on translucent sheet 42.
Optionally, the spacing between two through-holes 41 of arbitrary neighborhood is equal, also, between two through-holes 41 of arbitrary neighborhood
Spacing is set as 1mm, to which flat shape light is by forming one group of light beam that spacing is 1mm after translucent sheet 42.
As shown in figure 3, illustrating the schematic diagram of the through-hole measuring device.In a state of use, it is set to fixing device
Illuminating part 20 in 10 sends out natural light, as shown by the arrows in Figure 3, the light that illuminating part 20 is sent out be projeced into lens 30 and via
The refraction of lens 30 forms directional light, and directional light is further projeced into translucent sheet 42 and on translucent sheet 42 with specific spacing
Spaced through-hole 41, to which directional light is separated to form one group with the spaced light beam of specific spacing.Finally with specific
The spaced light beam of spacing is projeced on tested pupil, as shown in Figure 10, the effect showed when tested pupil is projeced into for light beam
Fruit is schemed.User can obtain the size of tested pupil according to the spacing between the number of beams and light beam being projeced on tested pupil
Data.
It is understood that in this present embodiment, as shown in Figure 10, the through-hole 41 is set as the through-hole of vertical bar shaped, because
Through the light beam for correspondingly forming vertical bar shaped after the through-hole 41 on translucent sheet 42, final light beam is projeced into tested this directional light
Pupil simultaneously shows one group of spaced straight line, and the spacing of adjacent two straight line is equal to corresponding adjacent two on translucent sheet 41
The spacing of through-hole 41.Therefore user can obtain the size of tested pupil according to the spacing between the vertical element number and straight line of display
Data.In another embodiment, the through-hole 41 is provided in round through-hole, therefore flat shape light is through the through-hole on translucent sheet 42
Cylindrical light beam is correspondingly formed after 41, final light beam is projeced into tested pupil and shows the circle of one group of arranged at certain intervals
Point, similarly, user can know the size of tested pupil according to the spacing between the dot quantity and dot of display.
As shown in Figure 10, light beam is projeced on tested pupil and shows 5 straight lines, logical with arbitrary neighborhood in the present embodiment two
Spacing between hole 41 is set as equidistant 1mm, between two light beam of arbitrary neighborhood being separated to form via translucent sheet 42
Spacing is also 1mm, and therefore, the spacing for being projeced into two straight lines of arbitrary neighborhood of tested pupil is 1mm, to be tested the straight of pupil
Diameter size is 4mm.In actual mechanical process, projects and the straight line for being shown in tested pupil is equivalent to a graduated scale
Ruler plays the role of measurement and reads to be tested pupil diameter size.User adjusts the pupil measuring device so that aobvious first
The straight line for being shown in most edge on tested pupil is located at the edge of tested pupil, and straight line is read as start index
Number scale is 0mm, and the straight line of remaining display is arranged to side in sequence, therefore Article 2 straight line is as the first lattice scale, reading
It is denoted as 1mm, and so on, the second lattice scale reading is denoted as 2mm, and third lattice scale reading is denoted as 3mm, the 4th lattice scale reading note
For 4mm.User need to only count several lattice scales, so that it may to read the dimensional values for being tested pupil.
As shown in figure 4, illustrating the pupil measuring device of second embodiment provided by the utility model.The pupil
Hole measurement device includes fixing device 10A, illuminating part 20A, lens 30A and transmissive member 40A.Wherein, fixing device 10A,
The structure of illuminating part 20A and lens 30A respectively with fixing device 10, illuminating part 20 and the lens 30 in one embodiment
Structure it is consistent, the present embodiment is the improvement to the transmissive member.In this present embodiment, transmissive member 40A have two groups with
The specific spaced through-hole 41A of spacing, transmissive member 40A include two translucent sheet 42A, and two groups of through-hole 41A are corresponded to respectively
Ground is set to two translucent sheet 42A.42 structure one of translucent sheet in the structure and one embodiment of translucent sheet 42A
It causes.Two translucent sheet 42A are parallelly spaced and are fixed on inside fixing device 10A, i.e. two translucent sheet 42A are mutually flat
Row.The through-hole 41A of one of translucent sheet 42A is corresponding with the through-hole 41A of another translucent sheet 42A.Lens component 40A
Positioned at the side of lens 30A, to reflect the directional light to be formed via lens 30A and penetrate one of them described translucent sheet 42A
Through-hole 41A, further penetrate another translucent sheet 42A through-hole 41A, to be formed with the one of arranged at certain intervals
Group light beam.
As shown in figure 5, illustrating the stereochemical structure of transmissive member 40A.The further treasure-house positioning column 43A of transmissive member 40A,
Positioning column 43A is connected to inside fixing device 10A, and parallelly interval is connected to positioning column 43A to two translucent sheet 42A respectively,
Two translucent sheet 42A are located at the same side of positioning column 43A.Optionally, two translucent sheet 42A be movably connected respectively in
Positioning column 43A, in order to adjust the position of two translucent sheet 42A, to make the through-hole 41A of one of translucent sheet 42A
Center and another translucent sheet 42A through-hole 41A off(-)center.The advantageous effect designed in this way is that directional light is successively
It is refined by the interval light beam formed after two translucent sheet 42A of dislocation, to clearly be projected in tested pupil
Effect is differentiated convenient for user, measures and is read.Optionally, two translucent sheet 42A are removably attachable to positioning column respectively
43A, to which user voluntarily can carry out repair and replacement to translucent sheet 42A.
In this present embodiment, the centers through-hole 41A of a translucent sheet 42A are corresponding with another translucent sheet 42A logical
The hole centers 41A are aligned one by one, and the size for adjoining the through-hole 41A of the translucent sheet 42A of lens 20A is more than another translucent sheet
The size of the through-hole 41A of 42A.It is first passed through with size compared with large through-hole in this way, reflecting the directional light to be formed via lens 30A
The translucent sheet 42A of 41A and the light beam for being separated to form one group of interval, the light beam being then separated to form, which further penetrates, to be had
Translucent sheet 42A of the size compared with small through hole 41A is separated into more tiny light to which the light beam at the group interval is further refined
Beam.The advantages of designing in this way is, different logical by the way that two packet sizes are arranged compared to the scheme that a translucent sheet is only arranged
Hole 41A can carry out directional light successively twice to separate, final to obtain more tiny light beam, so that being finally projeced into tested
The light beam of pupil is more clear bright, and reading is measured convenient for user.
In another embodiment, the through-hole 41A of a translucent sheet 42A is sized to and another translucent sheet
The through-hole 41A of 42A is just the same, i.e., the through-hole 41A of two translucent sheet 42A is equal sized, but two translucent sheet 42A are not
It is perfectly aligned, but shifts to install, so that the center of the through-hole 41A of a translucent sheet 42A and another translucent sheet
The off(-)center of the through-hole 41A of 42A.In this way, directional light penetrates two respective through-hole 41A of translucent sheet 42A successively, and
And it is separated to form more tiny light beam twice, to obtain clearly bright projection.It is noted that in the application
In, two translucent sheet 42A dislocation refer to, the center of the through-hole 41A of one of translucent sheet 42A and corresponding to another thoroughly
The off(-)center of the through-hole 41A of light thin slice 42A, and can to pass sequentially through two translucent sheet 42A corresponding for directional light
Through-hole 41A, to be successively separated to form the light beam at interval twice.
Therefore, it will be appreciated by persons skilled in the art that adjoining the ruler of the through-hole 41A of the translucent sheet 42A of lens 20A
The size of the very little through-hole 41A more than or equal to another translucent sheet 42A.
Transmissive member 40A further comprises that positioning pin 44A, positioning pin 44A are set to positioning column 43A, and translucent sheet 42A is logical
It crosses positioning pin 44A and is connected to positioning column 43A.As shown in figure 5, in this present embodiment, transmissive member 40A includes two positioning pins
44A, two positioning pin 44A are positioned apart from respectively correspondingly to be positioned by two in positioning column 43A, two translucent sheet 42A
The ground at the intervals pin 44A is fixed on positioning column 43A.The one side edge position of translucent sheet 42A is connected to positioning column 43A.
Fig. 6 illustrates the structure of another transmissive member, is a kind of deformation implementation side of transmissive member 40A shown in fig. 5
Formula.Transmissive member 40B includes two translucent sheet 42B and positioning column 43B after deformation, each translucent sheet 42B has one
Group is parallelly arranged at intervals at positioning column 43B with the spaced through-hole 41B of specific spacing, two translucent sheet 42B, and
And two translucent sheet 42B and positioning column 43B are integrally formed.In this way design the advantages of be can save positioning pin etc. this
Class securing part saves the installation steps that translucent sheet 42B is installed on to positioning column 43B, the trouble for avoiding small part from losing,
Simplify production technology.
Fig. 7 and Fig. 8 is another variant embodiment for the pupil measuring device of second embodiment, is pair
The improvement and deformation of fixing device.As shown in fig. 7, the pupil measuring device includes fixing device 10C, illuminating part 20C, lens
30C and transmissive member 40C.Wherein, illuminating part 20C, lens 30C and the respective structures of transmissive member 40C and second reality
Apply in example that corresponding structure is consistent, the present embodiment thes improvement is that fixing device.Improved fixing device 10C includes the
One shell 11C and second shell 12C, first shell 11C are removably attachable to second shell 12C, in first shell 11C
A cavity 101C is formed between second shell 12C.That is, having the cavity 101C inside fixing device 10C.It shines
Part 20C, lens 30C and transmissive member 40C are placed in cavity 101C.
It is understood that fixing device 10C is arranged to two parts of split structure, i.e. first shell 11C and
Two shell 12C, are socketed first shell 11C and second shell 12C by way of being detachably connected, in this way design the advantages of be,
The fixing device 10C can be opened in order to user to carry out inner body such as illuminating part 20C, lens 30C and light transmission structure
The replacement of part 40C and position adjustment, in addition, split type structure is also beneficial to the production process in the pupil measuring device
Assembly reduces operation difficulty.
Optionally, in this present embodiment, the mode that first shell 11C is connected through a screw thread removably is socketed on second shell
Body 12C.As shown in fig. 7, external screw thread is arranged in one end of first shell 11C, correspondingly, in one end setting of second shell 12D
Screw thread, to which one end of first shell 11C is threadedly connected to one end of second shell 12C by way of screwing.Conversely, user
By screwing one end of first shell 11C or one end of second shell 12C so that one end of first shell 11C is from second shell
Body 12C is screwed out, you can separation first shell 11C and second shell 12C.
It may occur to persons skilled in the art that first shell 11C and second shell 12C can also be by other means
Realize detachably connected, the utility model is not restricted this.For example, can be set in the lateral wall of the one end first shell 11C
Protrusion is set, card slot correspondingly is set in one end of second shell 12C, the one end first shell 11C is socketed in second shell 12C mono-
End, and the protrusion on first shell 11C is optionally engaged in the card slot of second shell 12C, it in this way, will
First shell 11C and second shell 12C are firmly locked.
Optionally, in this present embodiment, as shown in fig. 7, lens 30C and transmissive member 40C are set in first shell 11C
Portion, illuminating part 20C are set to inside second shell 12C, i.e., illuminating part 20C are separately set in second shell 12C.It designs in this way
The advantages of be, when the pupil measuring device when not in use, user can detach first shell 11C and second shell 12C, to
The parts second shell 12C for being built-in with illuminating part 20C are used as an illuminations.
It is noted that in variant embodiment shown in Fig. 7, the transmissive member in fixing device 10C is illustrated
40C is the structure for including two translucent sheets, but it includes only a translucent sheet knot that can also be arranged in fixing device 10C
The transmissive member of structure.In other words, dismountable fixing device 10C can equally be well applied to first implementation of the utility model
The pupil measuring device in example.
Fig. 9 A and Fig. 9 B are another variant embodiments for the pupil measuring device of second embodiment, are pair
The improvement and deformation of fixing device.The pupil measuring device include fixing device 10D, illuminating part 20D, lens 30D and thoroughly
Light component 40D.Wherein, corresponding in illuminating part 20D, lens 30D and the respective structures of transmissive member 40D and second embodiment
Structure it is consistent, the improvement of the present embodiment is fixing device.The length of improved fixing device 10D is scalable, fixed dress
Setting has a cavity 101D inside 10D, illuminating part 20D, lens 30D and transmissive member 40D are placed in inside cavity 101D.When
When stretching fixing device 10D, the distance of illuminating part 20D and lens 30D increase；When shrinking fixing device 10D, illuminating part 20D
Reduce with the distance of lens 30D.
It is understood that in actually manufacture and assembling process, the focal position of lens 30D it is possible that deviation,
Therefore illuminating part 20D may not be on ideal position.Therefore, it is scalable to be arranged to length by fixing device 10D, to send out
The distance of light part 20D and lens 30D are adjustable, and user can voluntarily adjust the distance between illuminating part 20D and lens 30D to most
Good state so that position more satisfactory illuminating part 20D, to obtain preferable light beam projection.
Fixing device 10D includes first shell 11D and second shell 12D, and first shell 11D is telescopically socketed on second
Shell 12D, to form the cavity 101D between first shell 11D and second shell 12D.Optionally, first shell 11D
Including a telescopic sleeve 111D, sleeve 111D is set to one end of first shell 11D.The cross sectional dimensions of sleeve 111D omits
Less than the cross sectional dimensions of second shell 12D, to which sleeve 111D is socketed on one end of second shell 12D.Sleeve 111D can quilt
It takes in inside second shell 12D or stretches out from second shell 12D, in this way, realize fixing device 10D's
Length is scalable.
As shown in Figure 9 A, it is structural schematic diagram that fixing device 10D is under tensional state, sleeve 111D is by from this time
It stretches out and inside two shells 12, the length increase of fixing device 10D.As shown in Figure 9 B, it is that fixing device 10D is in contraction-like
Structural schematic diagram under state, at this time 111D times of sleeve be incorporated into inside second shell 12D, i.e. sleeve 111D hides at least partly
In second shell 12D, at this time the length reduction of fixing device 10D.
Optionally, in this present embodiment, illuminating part 20D is set to inside second shell 12D, and second shell 12D further includes
One charging interface 121D, such as USB interface.Charging interface 121D is electrically connected to illuminating part 20D.In this way, user can be by filling
The pupil measuring device is connected external power supply by electrical interface 121D, to give illuminating part 20D to charge.
It is noted that in variant embodiment shown in Fig. 9 A and Fig. 9 B, illustrate saturating in fixing device 10D
Light component 40D is the structure for including two translucent sheets, but it includes only a light transmission that can also be arranged in fixing device 10D
The transmissive member of flake structure.In other words, the telescopic fixing device 10D of length can equally be well applied to the utility model
The pupil measuring device in one embodiment.
It will be appreciated by those skilled in the art that the embodiments of the present invention shown in foregoing description and attached drawing are only made
For citing, it is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The work(of the utility model
It can show and illustrated in embodiment with structural principle, in the case that without departing from the principle, the implementation of the utility model
Mode can have any deformation and modification.
Claims (10)
1. a kind of pupil measuring device, which is characterized in that including：
Fixing device；
Illuminating part is set to the fixing device；
Lens are set to the fixing device, and the illuminating part is located at the focal position of the lens so that the illuminating part is sent out
The light gone out, which is projeced into the lens and reflects, forms directional light；
Transmissive member, is set to the fixing device, and the transmissive member includes at least one translucent sheet, the translucent sheet
With one group of through-hole with arranged at certain intervals so that directional light penetrates the through-hole and forms the light beam at interval, to interval
Light beam is projeced into tested pupil to weigh tested pupil size.
2. pupil measuring device according to claim 1, which is characterized in that the fixing device includes first shell and
Two shells, the first shell are removably socketed on the second shell, the illuminating part, the lens and the light transmission
Component is respectively positioned on inside the fixing device.
3. pupil measuring device according to claim 1, which is characterized in that the fixing device includes first shell and
Two shells, the first shell are telescopically socketed on the second shell, the illuminating part, the lens and the light transmission
Component is respectively positioned on inside the fixing device.
4. pupil measuring device according to claim 1, which is characterized in that the through-hole is that vertical bar shaped through-hole or circle are logical
Hole.
5. pupil measuring device according to claim 4, which is characterized in that the quantity of the translucent sheet be two, two
A translucent sheet is parallelly spaced setting.
6. pupil measuring device according to claim 5, which is characterized in that adjoin the translucent sheet of the lens
Clear size of opening is greater than or equal to the clear size of opening of another translucent sheet.
7. pupil measuring device according to claim 5, which is characterized in that the transmissive member further comprises positioning column,
Two translucent sheets are connected to the positioning column, and the translucent sheet and the positioning column are integrally formed.
8. a kind of transmissive member, it is suitable for pupil measuring device, which is characterized in that the transmissive member includes：
At least one translucent sheet, the translucent sheet has one group of through-hole with arranged at certain intervals so that directional light penetrates institute
It states through-hole and forms the light beam at interval, to which the light beam at interval is projeced into tested pupil to weigh tested pupil size.
9. transmissive member according to claim 8, which is characterized in that the quantity of the translucent sheet is two, two institutes
It is parallel to each other to state translucent sheet.
10. transmissive member according to claim 9, which is characterized in that the transmissive member further comprises positioning column, two
A translucent sheet is connected to the positioning column, and the translucent sheet and the positioning column are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633329.0U CN207666577U (en) | 2017-06-02 | 2017-06-02 | Pupil measuring device and transmissive member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633329.0U CN207666577U (en) | 2017-06-02 | 2017-06-02 | Pupil measuring device and transmissive member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207666577U true CN207666577U (en) | 2018-07-31 |
Family
ID=62953908
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720633329.0U Active CN207666577U (en) | 2017-06-02 | 2017-06-02 | Pupil measuring device and transmissive member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207666577U (en) |
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2017
- 2017-06-02 CN CN201720633329.0U patent/CN207666577U/en active Active
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Address after: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee after: Tongqiao Medical Technology Co.,Ltd. Country or region after: China Address before: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee before: ZHUHAI TONGQIAO MEDICAL TECHNOLOGY CO.,LTD. Country or region before: China |