CN110514411A - Lens index detection device and method - Google Patents
Lens index detection device and method Download PDFInfo
- Publication number
- CN110514411A CN110514411A CN201910851360.5A CN201910851360A CN110514411A CN 110514411 A CN110514411 A CN 110514411A CN 201910851360 A CN201910851360 A CN 201910851360A CN 110514411 A CN110514411 A CN 110514411A
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- center
- lens
- axis direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 197
- 238000001228 spectrum Methods 0.000 claims abstract description 130
- 238000012360 testing method Methods 0.000 claims description 108
- 238000003384 imaging method Methods 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 32
- 238000012544 monitoring process Methods 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 19
- 230000005622 photoelectricity Effects 0.000 claims description 14
- 238000000149 argon plasma sintering Methods 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 10
- 238000009738 saturating Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000001579 optical reflectometry Methods 0.000 claims description 5
- 238000002310 reflectometry Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract description 10
- 238000011156 evaluation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 239000005304 optical glass Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 208000032369 Primary transmission Diseases 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001448 refractive index detection Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0228—Testing optical properties by measuring refractive power
- G01M11/0235—Testing optical properties by measuring refractive power by measuring multiple properties of lenses, automatic lens meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/45—Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods
Abstract
A kind of lens index detection device, it is characterized by comprising light source module, center of lens physical thickness detection module and center of lens optical thickness detection modules, the light source module includes for exporting the first light source component of collimated light beam, the first focus pack, the center of lens physical thickness detection module includes the first image-forming assembly and the second image-forming assembly, and the center of lens optical thickness detection module includes the first photoelectric sensor assembly, the second photoelectric sensor assembly, spectrum groupware, the first reflecting mirror partially reflected, moveable second reflecting mirror.The lens index detection device is easy to operate, online Fast nondestructive evaluation and is also suitable to the irregular face type eyeglass such as aspherical lens, cylinder eyeglass and final lens product.In addition a kind of lens index detection method is also provided.
Description
Technical field
The present invention relates to optical lens parameter detecting technical fields, and in particular to a kind of lens index detection device and side
Method.
Background technique
Refractive index parameter is an important parameter index of optical lens, in order to ensure optical system has well into image quality
Amount, needs the refractive index of precise measuring optical material.The refractive index of high-acruracy survey optical glass material is to pass through minimum at present
It is biased to horn cupping to be detected, but the premise that the method for minimum deviation angle is detected is to need optical glass to be measured being fabricated to one
Prism carries out anaclasis, while needing the related angle of accurate detection prism.Therefore the method for minimum deviation angle detects optics glass
The refractive index of glass material is a kind of mode directly detected, and there are following technical problems for it: 1, needing to destroy optical element, in this way
It is not suitable for the detection of final lens product necessarily；2, prism manufacture difficulty is big, the period is long, and for different batches, different materials
Optical glass needs to make corresponding prism respectively, and detection efficiency is lower；3, using prism when testing, thus it is uncomfortable
The detection of eyeglass for the irregular face type such as aspherical lens, cylinder eyeglass.The method of minimum deviation angle is relatively specific for glass system
It makes quotient to detect to a batch of raw material glass, and is not suitable for carrying out final lens product online high-precision detection, example
Such as the refractive index of spectacle lens is detected, is needed in the case where not knowing optical element material, and do not destroy optical element itself,
To realize the detection of its refractive index, and then its determining material properties.
Mainly there are 2 kinds for the refractive index detection method of final lens product at present: inverse one is carrying out according to focal power formula
To calculating, i.e., its front and rear surfaces curvature, center thickness and lens powers is measured using mechanical precision measurement method, according to light focus
Degree formula calculates its wavelength refractive rate, and this method is complicated for operation, difficulty is big, it is difficult to guarantee measurement accuracy, and not be suitable for aspheric
Face eyeglass lens measurement；Another method is to change " environment " index method, i.e., contacts Jie with lens front and rear surfaces by changing
Eyeglass is such as placed in the solution of known refractive index by the refractive index of matter, or attaches the soft of known refractive index in eyeglass front and rear surfaces
Property medium, eyeglass focal power in air and in the solution is detected respectively, according to the refractive index of the variation of focal power and solution
The refractive index of eyeglass can be calculated, this method is equally complicated for operation, and detection difficulty is big.
Summary of the invention
The invention solves first technical problem be: a kind of easy to operate, online Fast nondestructive evaluation and right is provided
The lens index detection device that the irregular face type eyeglass such as aspherical lens, cylinder eyeglass and final lens product are also suitable.
The present invention is for the technical solution of first technical problem: a kind of lens index detection device, special
Sign is: including light source module, center of lens physical thickness detection module and center of lens optical thickness detection module, the light
Source module includes for exporting the first light source component of collimated light beam, the first focus pack, the center of lens physical thickness inspection
Surveying module includes the first image-forming assembly and the second image-forming assembly, and the center of lens optical thickness detection module includes the first photoelectricity
The first reflecting mirror, moveable second reflecting mirror that probe assembly, the second photoelectric sensor assembly, spectrum groupware, part are reflected, institute
The second photoelectric sensor assembly, the first reflecting mirror, spectrum groupware, the first focus pack and first light source component are stated along primary optic axis side
To setting gradually from front to back, the side of spectrum groupware is arranged in moveable second reflecting mirror, and first photoelectricity is visited
The other side that spectrum groupware is arranged in component is surveyed, is located at spectrum groupware and the first reflecting mirror at the focal plane of first focus pack
Between for placing tested eyeglass, first image-forming assembly and the second image-forming assembly be separately positioned on tested eyeglass top and
Lower section, the first light source component are being tested at eyeglass along the collimated light beam that primary optic axis direction is transmitted via the first focus pack
It focuses, while measured lens piece upper and lower surfaces generate scattering hot spot and detected by the first image-forming assembly and the second image-forming assembly, it is described
Light beam after first light source component focuses also is transmitted in the second photoelectric sensor assembly through the first mirror portion, first light
Source component is also divided into two bundles through spectrum groupware along the light beam that primary optic axis direction is transmitted, it is a branch of project on the second reflecting mirror and by
Second reflecting mirror reflects and backtracking, further leads to and is transmitted in the first photoelectric sensor assembly by spectrum groupware, and another beam is thrown
It is mapped on the first reflecting mirror and is reflected and backtracking by the first reflecting mirror, be also reflected into the first photodetection via spectrum groupware
In component, the light beam that two beams return is entered in the first photoelectric sensor assembly for detecting interference phenomenon.
The technical solution working principle is as follows:
Before being put into tested eyeglass, first light source component is opened, the collimated light beam that first light source component issues is through first
Focus pack focuses and transmits away and projected in the second photoelectric sensor assembly through the first mirror portion, is visited by the second photoelectricity
Survey the spot center position for the light beam that assemblies monitor projection is come in, and the reference position as subsequent tested lens position adjustment；
Be put into tested eyeglass, by the second photoelectric sensor assembly monitoring projection come in light beam actual facula center, and with before
Obtained reference position compares, and is instructed user to adjust the position of tested eyeglass according to the deviation of the two, works as actual facula
When center is overlapped with reference position, tested center of lens is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass；
Meanwhile the collimated light beam that first light source component issues focuses at tested eyeglass via the first focus pack, and in tested eyeglass
Upper and lower surfaces generate light scattering, scatter light to measured lens piece upper and lower surfaces respectively by the first image-forming assembly and the second image-forming assembly
The scattering hot spot spatial altitude measurement of measured lens piece upper and lower surfaces is realized in imaging, and measured lens piece upper and lower surfaces scattering hot spot is empty
Between difference in height be center of lens physical thickness D0；In addition, the light beam that first light source component issues also is divided into two through spectrum groupware
Beam, it is a branch of project on the second reflecting mirror and by the reflection of the second reflecting mirror and backtracking, another beam project the first reflecting mirror
It above and by the first reflecting mirror reflects and backtracking, the light beam that two beams return passes through spectrum groupware and enters the first photodetection
In component, the light path of light beam that mobile second reflecting mirror to appropriate location, i.e. first light source component issue to the second transmitting mirror with
To the first reflecting mirror light path it is essentially equal when, the reflected light beam of the second reflecting mirror and the reflected light of the first reflecting mirror
Beam will interfere phenomenon in the first photoelectric sensor assembly, before being put into tested eyeglass, record in the first photoelectric sensor assembly
There is the position d1 of the second reflecting mirror when interference phenomenon, and after being put into tested eyeglass, readjusts the position of the second reflecting mirror
And it records in the first photoelectric sensor assembly and occurs the difference and mirror of position d2, d2 and the d1 of the second reflecting mirror when interference phenomenon again
Piece central optical thickness is related；Then according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2,
To calculate the refractive index of tested eyeglass, calculation formula are as follows:
Above-mentioned technical proposal has the beneficial effect that:
Lens index detection device of the present invention is to be dissipated by detection focus on light beam what measured lens piece upper and lower surfaces generated
Spatial altitude difference and the interference phenomenon of hot spot are penetrated to obtain the relevant parameter for calculating refractive index, without making prism, without right
The related angle of prism is detected, more convenient operation, and shortens detection cycle, and on-line quick detection may be implemented；Nothing
Prism need to be made, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And scatter light
The spatial altitude difference of spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass.
Lens index detection device based on the technical solution, corresponding lens index detection method, feature exist
In: it the following steps are included:
(1) before being inserted into tested eyeglass, first light source component is opened, first light source component is monitored by the second photoelectric sensor assembly
Light beam spot center position, and as reference position；
(2) interference phenomenon is detected by the first photoelectric sensor assembly, and records in the first photoelectric sensor assembly and interference occurs now
As when the second reflecting mirror position d1；
(3) it is inserted into tested eyeglass, in the actual facula by the light beam of the second photoelectric sensor assembly monitoring first light source component
Heart position, and compared with reference position obtained in step (1), instructed user to adjust measured lens according to the deviation of the two
The position of piece is tested center of lens when the actual facula center of the light beam of first light source component is overlapped with reference position
It is overlapped with optical path Center, completes the position adjustment of tested eyeglass；
(4) it is realized by the first image-forming assembly and the second image-forming assembly respectively to the scattering light imaging of measured lens piece upper and lower surfaces
Measured lens piece upper and lower surfaces scatter the measurement of hot spot spatial altitude, and measured lens piece upper and lower surfaces scattering hot spot spatial altitude difference is
For center of lens physical thickness D0；
(5) when occurring interference phenomenon again in the position of the second reflecting mirror of readjustment and the first photoelectric sensor assembly of record
The position d2 of second reflecting mirror；
(6) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece, calculation formula are as follows: n=1+ (d2-d1)/D0.
The invention solves second technical problem be: a kind of easy to operate, online Fast nondestructive evaluation and right is provided
The irregular face type eyeglass such as aspherical lens, cylinder eyeglass and final lens product are also suitable and have the mirror of focal power detection function
Piece refractivity tester.
The present invention is for first technical solution of second technical problem: a kind of lens index detection dress
It sets, it is characterised in that: detect mould including light source module, center of lens physical thickness detection module and center of lens optical thickness
Block, the light source module include for exporting the first light source component of collimated light beam, the first removable focus pack, the mirror
Piece center physical thickness detection module includes the first image-forming assembly and the second image-forming assembly, the center of lens optical thickness detection
Module includes the first photoelectric sensor assembly, the second photoelectric sensor assembly, spectrum groupware, Hartmann's plate, moveable second reflection
Mirror, second photoelectric sensor assembly, Hartmann's plate, spectrum groupware, removable the first focus pack and first light source component
It is set gradually from front to back along primary optic axis direction, the upper surface of Hartmann's plate is coated with reflectance coating for partially reflecting first
The light beam of light source assembly, the lower surface of Hartmann's plate are equipped with array loophole and are used to project to the second photoelectric sensor assembly
The side of spectrum groupware, the first photoelectric sensor assembly setting is arranged in array of light spots, moveable second reflecting mirror
In the other side of spectrum groupware, the focal plane of first focus pack is between spectrum groupware and Hartmann's plate for placing quilt
Eyeglass is surveyed, first image-forming assembly and the second image-forming assembly are separately positioned on above and below tested eyeglass, remove first
When focus pack, the first light source component is along the collimated light beam that primary optic axis direction is transmitted transmitted through projecting after spectrum groupware
On tested eyeglass and Hartmann's plate and enter the second photoelectric sensor assembly, and is thrown by the second photoelectric sensor assembly detection Hartmann's plate
Incoming array of light spots, after being inserted into the first focus pack, collimation that the first light source component is transmitted along primary optic axis direction
Light beam is focused transmitted through spectrum groupware and by the first focus pack in tested eyeglass, while measured lens piece upper and lower surfaces generate
It scatters hot spot and is detected by the first image-forming assembly and the second image-forming assembly, in addition first light source component is transmitted along primary optic axis direction
Light beam be also divided into two bundles through spectrum groupware, it is a branch of project on the second reflecting mirror and by the reflection of the second reflecting mirror and former road is returned
It returns, further leads to and be transmitted in the first photoelectric sensor assembly by spectrum groupware, another beam projects on Hartmann's plate and by Hart
The upper surface of graceful plate is reflected and backtracking, is also reflected into the first photoelectric sensor assembly via spectrum groupware, what two beams returned
Light beam enters in the first photoelectric sensor assembly for detecting interference phenomenon.
The working principle of the technical solution is as follows:
Before tested eyeglass and the first focus pack move into, first light source component, first light source component edge are opened
The collimated light beam of primary optic axis direction transmission is successively transmitted through entering the second photoelectric sensor assembly after spectrum groupware and Hartmann's plate
In, and incoming array of light spots is thrown by the second photoelectric sensor assembly detection Hartmann's plate, and using its position as subsequent tested
The reference position that lens position adjustment and focal power calculate；The first focus pack is then moved into, the first light source component is along
The light beam of one optical axis direction transmission is divided into two bundles after the first focus pack by spectrum groupware, a branch of to project the second reflecting mirror
It above and by the second reflecting mirror reflects and backtracking, another beam is projected on Hartmann's plate and reflected by the upper surface of Hartmann's plate
And backtracking, the light beam that two beams return pass through spectrum groupware and enter in the first photoelectric sensor assembly for detecting interference now
As the position d1 of the second reflecting mirror when record interferes phenomenon；It removes the first focus pack, and moves into tested eyeglass, by the
The actual spot array that the monitoring projection of two photoelectric sensor assemblies is come in, and according in the position of actual spot array and step (1)
Then the center of the calculations of offset of the reference position of acquisition eyeglass at this time is instructed user to adjust the position of tested eyeglass, is made
Tested center of lens is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass；It simultaneously can also be according to actual spot array
Position and step (1) in obtain reference position offset, to calculate the focal power of tested eyeglass；Then it is poly- that first is moved into again
Burnt component is readjusted and is occurred second when interference phenomenon again in the position of the second reflecting mirror and the first photoelectric sensor assembly of record
The difference of position d2, d2 and the d1 of reflecting mirror are related with center of lens optical thickness, while first light source component is along primary optic axis
The collimated light beam of direction transmission can also be focused transmitted through spectrum groupware and by the first focus pack in tested eyeglass, and tested
Eyeglass upper and lower surfaces generate light scattering, are dissipated respectively to measured lens piece upper and lower surfaces by the first image-forming assembly and the second image-forming assembly
Light imaging is penetrated, realizes the scattering hot spot spatial altitude measurement of measured lens piece upper and lower surfaces, and measured lens piece upper and lower surfaces scatter light
Spot spatial altitude difference is center of lens physical thickness D0；Then thick according to center of lens physical thickness D0 and center of lens optics
Relevant parameter d1, d2 are spent, to calculate the refractive index of tested eyeglass, calculation formula are as follows: n=1+ (d2-d1)/D0.
Lens index detection device based on the technical solution, corresponding lens index detection method, feature exist
In: it the following steps are included:
(1) before tested eyeglass and the first focus pack move into, first light source component is opened, by the second photodetection group
Part detects Hartmann's plate and throws incoming array of light spots, and using its position as subsequent tested lens position adjustment and optical lensmeter
The reference position of calculation；
(2) the first focus pack is moved into, interference phenomenon is detected by the first photoelectric sensor assembly, and record and interfere phenomenon
When the second reflecting mirror position d1；
(3) the first focus pack is removed, and moves into tested eyeglass, the reality come in by the monitoring projection of the second photoelectric sensor assembly
Border array of light spots, and according to the calculations of offset of the reference position obtained in the position of actual spot array and step (1) mirror at this time
Then the center of piece instructs user to adjust the position of tested eyeglass, be overlapped tested center of lens with optical path Center, i.e., complete
It is adjusted at the position of tested eyeglass；It simultaneously can also be according to the reference position obtained in the position and step (1) of actual spot array
Offset, to calculate the focal power of tested eyeglass；
(4) the first focus pack is moved into again, readjusts the position of the second reflecting mirror and records the first photoelectric sensor assembly
In occur the position d2 of the second reflecting mirror when interference phenomenon again, while it is right respectively by the first image-forming assembly and the second image-forming assembly
Measured lens piece upper and lower surfaces scatter light imaging, realize the scattering hot spot spatial altitude measurement of measured lens piece upper and lower surfaces, and are tested
It is center of lens physical thickness D0 that eyeglass upper and lower surfaces, which scatter hot spot spatial altitude difference,；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece, calculation formula are as follows: n=1+ (d2-d1)/D0.
The present invention is for second technical solution of second technical problem: a kind of lens index detection dress
It sets, it is characterised in that: detect mould including light source module, center of lens physical thickness detection module and center of lens optical thickness
Block, the light source module include the first light source component and second light source component, the first focus pack for exporting collimated light beam
With the first light-integrating subassembly, the center of lens physical thickness detection module includes the first image-forming assembly and the second image-forming assembly, institute
Stating center of lens optical thickness detection module includes the first photoelectric sensor assembly, the second photoelectric sensor assembly, spectrum groupware, Hart
Graceful plate, moveable second reflecting mirror, second photoelectric sensor assembly, Hartmann's plate, spectrum groupware, the first light-integrating subassembly and
Second light source component is set gradually from front to back along primary optic axis direction, and the first light source component is arranged in the first light-integrating subassembly
Side, first focus pack is arranged between first light source component and the first light-integrating subassembly, Hartmann's plate it is upper
Surface is coated with reflectance coating for partially reflecting the light beam of first light source component, and it is saturating that the lower surface of Hartmann's plate is equipped with array
Unthreaded hole is used to project array of light spots to the second photoelectric sensor assembly, and spectrum groupware is arranged in moveable second reflecting mirror
The other side of spectrum groupware is arranged in side, first photoelectric sensor assembly, and the focal plane of first focus pack, which is located at, to be divided
For placing tested eyeglass between optical assembly and Hartmann's plate, first image-forming assembly and the second image-forming assembly are separately positioned on
Above and below tested eyeglass, the light beam of the first light source component output is after the reflection of the first light-integrating subassembly along primary optic axis
Direction transmission, and focused by the first focus pack in tested eyeglass, while measured lens piece upper and lower surfaces generate scattering hot spot simultaneously
It is detected by the first image-forming assembly and the second image-forming assembly, while first light source component is also passed through along the light beam that primary optic axis direction is transmitted
Spectrum groupware is divided into two bundles, a branch of to project on the second reflecting mirror and reflected and backtracking by the second reflecting mirror, is further led to
It is transmitted in the first photoelectric sensor assembly by spectrum groupware, another beam projects on Hartmann's plate and by the upper surface of Hartmann's plate
Reflection and backtracking, are also reflected into the first photoelectric sensor assembly via spectrum groupware, the light beam that two beams return enters the
For detecting interference phenomenon, the collimated light beam that the second light source component is transmitted along primary optic axis direction in one photoelectric sensor assembly
It is transmitted in the second photoelectric sensor assembly after on transmitted through the first light-integrating subassembly, spectrum groupware, tested eyeglass and Hartmann's plate, and
Incoming array of light spots is thrown by the second photoelectric sensor assembly detection Hartmann's plate.
The working principle of the technical solution is as follows:
Before the immigration of tested eyeglass, first light source component is closed, opens second light source component, the second light source component
Collimated light beam along the transmission of primary optic axis direction enters the second photoelectricity after on the first light-integrating subassembly, spectrum groupware and Hartmann's plate
Probe assembly, and incoming array of light spots is thrown by the second photoelectric sensor assembly detection Hartmann's plate, and using its position as after
The reference position that continuous tested lens position adjustment and focal power calculate；It is then shut off second light source component, opens first light source group
The light beam of part, the first light source component output transmits after the reflection of the first light-integrating subassembly along primary optic axis direction, by light splitting group
Part is divided into two bundles, it is a branch of project on the second reflecting mirror and by the reflection of the second reflecting mirror and backtracking, another beam project Kazakhstan
It is reflected and backtracking on special graceful plate and by the upper surface of Hartmann's plate, the light beam that two beams return is entered by spectrum groupware
For detecting interference phenomenon in first photoelectric sensor assembly, the position d1 of the second reflecting mirror when record interferes phenomenon；Then
Close first light source component, open second light source component, and move into tested eyeglass, by the monitoring of the second photoelectric sensor assembly project into
The actual spot array come, and according to the calculations of offset of the reference position obtained in the position of actual spot array and step (1)
Then the center of eyeglass at this time instructs user to adjust the position of tested eyeglass, make tested center of lens and optical path Center weight
It closes, that is, completes the position adjustment of tested eyeglass；It simultaneously can also be according to the ginseng obtained in the position and step (1) of actual spot array
The offset of position is examined, to calculate the focal power of tested eyeglass；It is then shut off second light source component, opens first light source component, weight
Occurs the second reflecting mirror when interference phenomenon again in the new position for adjusting the second reflecting mirror and the first photoelectric sensor assembly of record
Position d2, d2 are related with center of lens optical thickness to the difference of d1, while the light beam of first light source component output can also be by the
One focus pack focuses at tested eyeglass, and generates light scattering in measured lens piece upper and lower surfaces, by the first image-forming assembly and the
Two image-forming assemblies to the scattering light imaging of measured lens piece upper and lower surfaces, realize that measured lens piece upper and lower surfaces scatter hot spot space respectively
Elevation measurement, and measured lens piece upper and lower surfaces scattering hot spot spatial altitude difference is center of lens physical thickness D0；Then basis
Center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2 calculate to calculate the refractive index of tested eyeglass
Formula are as follows: n=1+ (d2-d1)/D0.
Lens index detection device based on the technical solution, corresponding lens index detection method, feature exist
In: it the following steps are included:
(1) before the immigration of tested eyeglass, first light source component is closed, opens second light source component, is visited by the second photoelectricity
It surveys component detection Hartmann plate and throws incoming array of light spots, and using its position as subsequent tested lens position adjustment and light focus
Spend the reference position calculated；
(2) second light source component is closed, first light source component is opened, it is existing by detecting interference in the first photoelectric sensor assembly
As the position d1 of the second reflecting mirror when record interferes phenomenon；
(3) first light source component is closed, second light source component is opened, and moves into tested eyeglass, by the second photodetection group
The actual spot array that part monitoring projection is come in, and according to the reference bit obtained in the position of actual spot array and step (1)
Then the center of the calculations of offset set eyeglass at this time instructs user to adjust the position of tested eyeglass, make tested center of lens
It is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass；It simultaneously can also position according to actual spot array and step
(1) offset of the reference position obtained in, to calculate the focal power of tested eyeglass；
(4) second light source component is closed, first light source component is opened, readjust the position of the second reflecting mirror and records the
Occurs the difference of position d2, d2 and the d1 of the second reflecting mirror and center of lens light when interference phenomenon in one photoelectric sensor assembly again
Thickness correlation is learned, while the light beam of first light source component output can also be focused by the first focus pack in tested eyeglass, and
Measured lens piece upper and lower surfaces generate light scattering, by the first image-forming assembly and the second image-forming assembly respectively to measured lens on piece, following table
The scattering hot spot spatial altitude measurement of measured lens piece upper and lower surfaces is realized in the imaging of area scattering light, and measured lens piece upper and lower surfaces dissipate
Penetrating hot spot spatial altitude difference is center of lens physical thickness D0；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece, calculation formula are as follows: n=1+ (d2-d1)/D0.
The present invention is for the third technical solution of second technical problem: a kind of lens index detection dress
It sets, it is characterised in that: detect mould including light source module, center of lens physical thickness detection module and center of lens optical thickness
Block, the light source module include first light source component for exporting collimated light beam and second light source component, third light source assembly,
First light-integrating subassembly, the second light-integrating subassembly and the first focus pack, the center of lens physical thickness detection module include the
One image-forming assembly and the second image-forming assembly, the center of lens optical thickness detection module include the first photoelectric sensor assembly, the
Two photoelectric sensor assemblies, spectrum groupware, Hartmann's plate, moveable second reflecting mirror, second photoelectric sensor assembly, Hart
Graceful plate, spectrum groupware, the first focus pack, the first light-integrating subassembly, first light source component along primary optic axis direction from front to back according to
The side of spectrum groupware is arranged in secondary setting, second reflecting mirror, and first photoelectric sensor assembly is arranged in spectrum groupware
The other side, the focal plane of first focus pack is between spectrum groupware and Hartmann's plate for placing tested eyeglass, institute
It states the first image-forming assembly and the second image-forming assembly is separately positioned on above and below tested eyeglass, the upper table of Hartmann's plate
Face is coated with reflectance coating and is equipped with array light transmission for partially reflecting the light beam of second light source component, the lower surface of Hartmann's plate
Hole；The collimated light beam of first light source component output transmitted through still being transmitted along primary optic axis direction after the first light-integrating subassembly, and
It is focused by the first focus pack in tested eyeglass, while measured lens piece upper and lower surfaces generate scattering hot spot and by the first imaging
Component and the detection of the second image-forming assembly；The third light source assembly is located in the rear focus of the first focus pack, the third light
The light beam of source component output successively is focused to put down after the second light-integrating subassembly and the reflection of the first light-integrating subassembly through the first focus pack
Row light beam is simultaneously transmitted along primary optic axis direction, the collimated light beam that the third light source assembly is transmitted along primary optic axis direction transmitted through
After tested eyeglass and Hartmann's plate, the array of light spots transmitted through Hartmann's plate is detected by the second photoelectric sensor assembly；Described second
Light source assembly output collimated light beam transmitted through the second light-integrating subassembly and through the first light-integrating subassembly reflection after along primary optic axis direction
Transmission, then be divided into two bundles through spectrum groupware, it is a branch of to project on the second reflecting mirror and reflected and backtracking by the second reflecting mirror,
Further lead to and be transmitted in the first photoelectric sensor assembly by spectrum groupware, another beam projects on Hartmann's plate and by Hartmann's plate
Upper surface reflection and backtracking, be also reflected into the first photoelectric sensor assembly via spectrum groupware, two beams return light beam into
Enter into the first photoelectric sensor assembly for detecting interference phenomenon.
The working principle of the technical solution is as follows:
Before the immigration of tested eyeglass, first light source component and second light source component are closed, opens third light source assembly, by
Second photoelectric sensor assembly detects the array of light spots that Hartmann's plate (30) transmission is come in, and using its position as subsequent tested eyeglass
The reference position that position adjustment and focal power calculate；Third light source assembly is closed, second light source component is opened, is visited by the first photoelectricity
Component detection interference phenomenon is surveyed, the position d1 of the second reflecting mirror when record interferes phenomenon；Second light source component is closed, is opened
Third light source assembly, and tested eyeglass is moved into, the actual spot array come in by the monitoring projection of the second photoelectric sensor assembly, and root
The center of the calculations of offset of the reference position factually obtained in the position of border array of light spots and step (1) eyeglass at this time, so
It instructs user to adjust the position of tested eyeglass afterwards, is overlapped tested center of lens with optical path Center, that is, complete the position of tested eyeglass
Set adjustment；It simultaneously can also be according to the offset of the reference position obtained in the position and step (1) of actual spot array, to calculate quilt
Survey the focal power of eyeglass；Third light source assembly is closed, opens first light source component, the light beam of first light source component output is by first
Focus pack focuses at tested eyeglass, and generates light scattering in measured lens piece upper and lower surfaces, by the first image-forming assembly and second
Image-forming assembly realizes that measured lens piece upper and lower surfaces scattering hot spot space is high respectively to the scattering light imaging of measured lens piece upper and lower surfaces
Degree measurement, and measured lens piece upper and lower surfaces scattering hot spot spatial altitude difference is center of lens physical thickness D0；Close the first light
Source component opens second light source component, readjusts the position of the second reflecting mirror and records in the first photoelectric sensor assembly again
The difference for position d2, d2 and the d1 of the second reflecting mirror when interference phenomenon occur is related with center of lens optical thickness；Last basis
Center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate the refractive index of tested eyeglass (13),
Calculation formula are as follows: n=1+ (d2-d1)/D0.
Lens index detection device based on the technical solution, corresponding lens index detection method, feature exist
In: it the following steps are included:
(1) before the immigration of tested eyeglass, first light source component and second light source component are closed, opens third light source group
Part, the array of light spots come in by the detection Hartmann's plate transmission of the second photoelectric sensor assembly, and using its position as subsequent measured lens
The reference position that the adjustment of piece position and focal power calculate；
(3) third light source assembly is closed, second light source component is opened, interference phenomenon is detected by the first photoelectric sensor assembly,
The position d1 of second reflecting mirror when record interferes phenomenon；
(4) second light source component is closed, third light source assembly is opened, and moves into tested eyeglass, by the second photodetection group
The actual spot array that part monitoring projection is come in, and according to the reference bit obtained in the position of actual spot array and step (1)
Then the center of the calculations of offset set eyeglass at this time instructs user to adjust the position of tested eyeglass, make tested center of lens
It is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass；It simultaneously can also position according to actual spot array and step
(1) offset of the reference position obtained in, to calculate the focal power of tested eyeglass；
(5) third light source assembly is closed, first light source component is opened, the light beam of first light source component output is focused by first
Component focuses at tested eyeglass, and generates light scattering in measured lens piece upper and lower surfaces, is imaged by the first image-forming assembly and second
Component realizes that measured lens piece upper and lower surfaces scattering hot spot spatial altitude is surveyed respectively to the scattering light imaging of measured lens piece upper and lower surfaces
It is fixed, and measured lens piece upper and lower surfaces scattering hot spot spatial altitude difference is center of lens physical thickness D0；
(6) first light source component is closed, second light source component is opened, readjust the position of the second reflecting mirror and records the
Occurs the difference of position d2, d2 and the d1 of the second reflecting mirror and center of lens light when interference phenomenon in one photoelectric sensor assembly again
It is related to learn thickness；
(7) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece, calculation formula are as follows: n=1+ (d2-d1)/D0.
Above three technical solution has the beneficial effect that:
Lens index detection device of the present invention is to be dissipated by detection focus on light beam what measured lens piece upper and lower surfaces generated
Spatial altitude difference and the interference phenomenon of hot spot are penetrated to obtain the relevant parameter for calculating refractive index, without making prism, without right
The related angle of prism is detected, more convenient operation, and shortens detection cycle, and on-line quick detection may be implemented；Nothing
Prism need to be made, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And scatter light
The spatial altitude difference of spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass；Separately
Whether the center of outer setting Hartmann's plate recoverable eyeglass to be measured is aligned with optical path Center, and detected according to Hartmann's plate
The drift condition of array of light spots detects focal power.
Detailed description of the invention:
Fig. 1 is the optical schematic diagram of the lens index detection device in the embodiment of the present invention 1；
Fig. 2 is the optical schematic diagram of the lens index detection device in the embodiment of the present invention 3；
Fig. 3 is the optical schematic diagram of the lens index detection device in the embodiment of the present invention 5；
Fig. 4 is the optical schematic diagram of the lens index detection device in the embodiment of the present invention 7；
Fig. 5 is the present invention tiltedly as the Nonimage Conjugate Relations figure of camera lens inclination imaging；
Fig. 6 is the structural schematic diagram of Hartmann's plate of the present invention；
Fig. 7 is another structural schematic diagram of Hartmann's plate of the present invention；
In figure: 1- first light source component, 2- second light source component, 3- third light source assembly, the first focus pack of 4-, 5-
Two focus packs, the first image-forming assembly of 6-, the second image-forming assembly of 7-, the first photoelectric sensor assembly of 8-, 9- the second photodetection group
Part, 10- spectrum groupware, the first reflecting mirror of 11-, the second reflecting mirror of 12-, 13- are tested eyeglass, the first light-integrating subassembly of 14-, 15-
One monochromatic LED testing light source, 16- the second monochromatic LED testing light source, the first loophole of 17-, the second loophole of 18-, 19- first
Collimation lens, the second collimation lens of 20-, the first light splitting piece of 21-, the second light splitting piece of 22-, 23- third light splitting piece, the 4th point of 24-
Mating plate, 25- condenser lens, 26- is tiltedly as camera lens, 27- camera, 28- mirror holder, the second light-integrating subassembly of 29-, 30- Hartmann's plate, 31-
Array loophole, 32- reflectance coating, 33- object plane, 34- is as plane, A- primary optic axis direction, the second optical axis direction of B-, C-
Three optical axis directions, the 4th optical axis direction of D-.
Specific embodiment
With reference to the accompanying drawing, and in conjunction with the embodiments the present invention is described further.
Embodiment 1:
In a kind of lens index detection device, including light source module, center of lens physical thickness detection module and eyeglass
Heart optical thickness detection module, the light source module include for exporting the first light source component 1 of collimated light beam, the first focusing group
Part 4, the center of lens physical thickness detection module include the first image-forming assembly 6 and the second image-forming assembly 7, the center of lens
Optical thickness detection module includes the first photoelectric sensor assembly 8, the second photoelectric sensor assembly 9, spectrum groupware 10, part reflection
First reflecting mirror 11, moveable second reflecting mirror 12, second photoelectric sensor assembly 9, the first reflecting mirror 11, spectrum groupware
10, the first focus pack 4 and first light source component 1 are set gradually from front to back along primary optic axis direction A, and described moveable
The side of spectrum groupware 10 is arranged in two-mirror 12, and the another of spectrum groupware 10 is arranged in first photoelectric sensor assembly 8
Side, for placing tested eyeglass between spectrum groupware 10 and the first reflecting mirror 11 at the focal plane of first focus pack 4
13, first image-forming assembly 6 and the second image-forming assembly 7 are separately positioned on above and below tested eyeglass 13, and described first
Light source assembly 1 focuses at tested eyeglass 13 along the collimated light beam that primary optic axis direction A is transmitted via the first focus pack 4, together
When tested 13 upper and lower surfaces of eyeglass generate scattering hot spot and detected by the first image-forming assembly 6 and the second image-forming assembly 7, described the
Light beam after one light source assembly 1 focuses also is partially transmitted in the second photoelectric sensor assembly 9 through the first reflecting mirror 11, and described first
Light source assembly 1 is also divided into two bundles through spectrum groupware 10 along the light beam that primary optic axis direction A is transmitted, a branch of to project the second reflecting mirror
It is reflected and backtracking on 12 and by the second reflecting mirror 12, further leads to and the first photoelectric sensor assembly is transmitted to by spectrum groupware 10
In 8, another beam is projected on the first reflecting mirror 11 and is reflected and backtracking by the first reflecting mirror 11, also via spectrum groupware 10
It is reflected into the first photoelectric sensor assembly 8, the light beam that two beams return enters in the first photoelectric sensor assembly 8 for detecting interference
Phenomenon.
The light reflectivity of first reflecting mirror 11 is greater than light transmission rate, first reflecting mirror 11 and the second photodetection
Light beam of second focus pack 5 for converging first light source component 1 transmitted through the first reflecting mirror 11, institute are additionally provided between component 9
State the light beam that light reflectivity and light transmission are issued both for first light source component 1.Second focus pack 5 is set, this can be made
Carry out the weaker transmitted light of light intensity to enhance, carries out center of lens position in the second photoelectric sensor assembly 9 so as to reliably focus on
Correction.
The light reflectivity of first reflecting mirror 11 is 80 ﹪ -90 ﹪, and light transmission is 10 ﹪ -20 ﹪.The setting can be same
When guarantee interference phenomenon and lens position detection needed for luminous intensity.
The first light source component 1 includes one first monochromatic LED testing light source 15, the first monochromatic LED testing light source
15 can be patch packing forms, which can be the green light of 530nm or 540nm, be also possible to
The blue light of 450nm perhaps 480nm is also possible to the feux rouges etc. of 610nm or 630nm, which the first monochromatic LED testing light source 15 is
A wavelength, so that it may the refractive index at which wavelength tested, the front of the first monochromatic LED testing light source 15 is equipped with one first
The front of loophole 17, first loophole 17 is equipped with one first collimation lens 19, the first monochromatic LED testing light source 15
It is arranged in the rear focus of the first collimation lens 19, for sending out the first monochromatic LED testing light source 15 through the first loophole 17
Light beam out projects on the first focus pack 4 via collimated light beam is become after the first collimation lens 19.The test of first monochromatic LED
Light source 15 is at low cost, and energy consumption is small, using safer；First monochromatic LED testing light source 15 is converted into collimated light beam, optical path can be made
It couples more reliable.
The spectrum groupware 10 includes a first semi-transparent semi-reflecting light splitting piece 21, and first focus pack 4 includes one poly-
Focus lens 25, the center of first light splitting piece 21, the center of condenser lens 25, the center of the first collimation lens 19, first are thoroughly
The center of unthreaded hole 17 and the center of the first monochromatic LED testing light source 15 are respectively positioned on the A of primary optic axis direction, second reflecting mirror
The center at 12 center, the center of the first light splitting piece 21 and the first photoelectric sensor assembly 8 is respectively positioned on hangs down with primary optic axis direction A phase
On the second straight optical axis direction B, when the second reflecting mirror 12 is located at the left side of the first light splitting piece 21, first light splitting piece 21
The angle of side and the second optical axis direction B are 45 °, when the second reflecting mirror 12 is located at the right side of the first light splitting piece 21, described the
The angle of the side of one light splitting piece 21 and the second optical axis direction B are 135 °.Element needed for the setting is few, structure is simple, and optical path
Coupling is reliable.
First image-forming assembly 6 and the second image-forming assembly 7 are a band tiltedly as the camera 27 of camera lens 26, described oblique as mirror
First 26 optical axis direction with respect to the angle of primary optic axis direction A with tiltedly as the imaging core of the opposite camera 27 of the optical axis direction of camera lens 26
The angle of plate plane meets the image conjugate relation of imaging lens inclination imaging, as shown in figure 5,33 represent object plane, 34 are represented
As plane, as plane 34 is the imager chip plane of the first image-forming assembly 6 or the second image-forming assembly 7, the output of first light source component 1
The scattering light that is generated in tested 13 upper and lower surfaces of eyeglass of focus on light beam, via two tiltedly as camera lenses 26 are respectively in two cameras
Focal imaging in imager chip plane in 27, the first image-forming assembly 6 are used to measure the focus on light beam and quilt of first light source component 1
The spatial altitude of 13 upper surface intersection point of eyeglass is surveyed, the second image-forming assembly 7 is used to measure the focus on light beam and quilt of first light source component 1
The spatial altitude of 13 lower surface intersection point of eyeglass is surveyed, the spatial altitude difference of upper and lower surfaces intersection point is center of lens physical thickness D0.
Tiltedly picture 26 imaging effect of camera lens is more preferable, and the image of acquisition is more acurrate.
First photoelectric sensor assembly 8 is an area array cameras 27, line-scan digital camera 27 or photodiode.The setting can
Keep interference phenomenon detection more acurrate.
Second photoelectric sensor assembly 9 is a Position-Sensitive Detector or area array cameras 27.The setting can make eyeglass position
It is more acurrate to set calibration.
It further include being positioned close to mirror holder 28 at 4 focal plane of the first focus pack and for driving mirror holder 28 to move left and right
Motor, for driving the tested eyeglass 13 being mounted on mirror holder 28 to automatically move.The setting, which can drive, to be mounted on mirror holder 28
Tested eyeglass 13 automatically move, more convenient operation, position control is more accurate.
In the present embodiment, the spectral width of the first monochromatic LED testing light source 15 is 10nm~50nm, and central wavelength is
546nm；The diameter of first loophole 17 is less than 0.5mm, and the preferably diameter of the first loophole 17 is less than 0.2mm, such as
0.15mm；First loophole 17 is less than 0.5mm, such as 0.2mm at a distance from the first monochromatic LED testing light source 15；It is described
The focal length of first collimation lens 19 is greater than 50mm, and the preferably focal length of the first collimation lens 19 is greater than 100mm；The condenser lens 25
Focal length be greater than 50mm, the preferably focal length of condenser lens 25 is greater than 100mm, such as 120mm；First light splitting piece 21 is to first
The Transflective ratio of the light beam of monochromatic LED testing light source 15 is 1:1；The light reflectivity of first reflecting mirror 11 is 80 ﹪-
90 ﹪, light transmission are 10 ﹪ -20 ﹪.
Lens index detection device working principle of the present invention is as follows:
Before being put into tested eyeglass 13, first light source component 1 is opened, the collimated light beam warp that first light source component 1 issues
First focus pack 4, which focuses, simultaneously goes out through 11 fractional transmission of the first reflecting mirror and projects in the second photoelectric sensor assembly 9, by the
The spot center position for the light beam that the monitoring projection of two photoelectric sensor assemblies 9 is come in, and adjusted as subsequent tested 13 position of eyeglass
Reference position；It is put into tested eyeglass 13, by the actual facula center for the light beam that the monitoring projection of the second photoelectric sensor assembly 9 is come in
Position, and compared with the reference position obtained before, instructed user to adjust tested eyeglass 13 according to the deviation of the two
Position, when actual facula center is overlapped with reference position, tested 13 center of eyeglass is overlapped with optical path Center, i.e. completion quilt
Survey the position adjustment of eyeglass 13；Meanwhile first light source component 1 issue collimated light beam via the first focus pack 4 in measured lens
It is focused at piece 13, and generates light scattering in tested 13 upper and lower surfaces of eyeglass, divided by the first image-forming assembly 6 and the second image-forming assembly 7
It is other that tested 13 upper and lower surfaces of eyeglass scattering light is imaged, realize that tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude is surveyed
It is fixed, and tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude difference is center of lens physical thickness D0；In addition, the first light
The light beam that source component 1 issues is divided into two bundles through spectrum groupware 10, a branch of to project on the second reflecting mirror 12 and by the second reflecting mirror
12 reflect and backtracking, and another beam is projected on the first reflecting mirror 11 and reflected and backtracking by the first reflecting mirror 11, two
The light beam that beam returns passes through spectrum groupware 10 and enters in the first photoelectric sensor assembly 8, and mobile second reflecting mirror 12 is to appropriate
The light beam that position, i.e. first light source component 1 issue is complete to the light path of the second transmitting mirror 12 and the light path to the first reflecting mirror 11
When equal, the reflected light beam of the second reflecting mirror 12 and the reflected light beam of the first reflecting mirror 11 will be in the first photodetections
Phenomenon is interfered in component 8, before being put into tested eyeglass 13, when there is interference phenomenon in the first photoelectric sensor assembly 8 of record
The position d1 of second reflecting mirror 12, and after being put into tested eyeglass 13 readjusts the position of the second reflecting mirror 12 and records the
Occur again when interference phenomenon in one photoelectric sensor assembly 8 in the difference and eyeglass of position d2, d2 and the d1 of second reflecting mirror 12
Heart optical thickness is related；Then according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to count
Calculate the refractive index of tested eyeglass 13, calculation formula are as follows:
Lens index detection device of the present invention is to be generated by detection focus on light beam in tested 13 upper and lower surfaces of eyeglass
Scatter hot spot spatial altitude difference and interference phenomenon come obtain calculate refractive index relevant parameter, without making prism, without
The related angle of prism is detected, more convenient operation, and shorten detection cycle, on-line quick detection may be implemented；
Without making prism, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And it scatters
The spatial altitude difference of hot spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass.
Embodiment 2:
A kind of lens index detection method, this method are based on the lens index detection device in embodiment 1, it is wrapped
Include following steps:
(1) before being inserted into tested eyeglass 13, first light source component 1 is opened, first light source is monitored by the second photoelectric sensor assembly 9
The spot center position of the light beam of component 1, and as reference position；
(2) interference phenomenon is detected by the first photoelectric sensor assembly 8, and records and interferes in the first photoelectric sensor assembly 8
The position d1 of second reflecting mirror 12 when phenomenon；
(3) it is inserted into tested eyeglass 13, by the practical light of the light beam of the second photoelectric sensor assembly 9 monitoring first light source component 1
Spot center, and compared with reference position obtained in step (1), instructed user to adjust quilt according to the deviation of the two
The position for surveying eyeglass 13, when the actual facula center of the light beam of first light source component 1 is overlapped with reference position, measured lens
13 center of piece is overlapped with optical path Center, completes the position adjustment of tested eyeglass 13；
(4) tested 13 upper and lower surfaces of eyeglass scattering light is imaged respectively by the first image-forming assembly 6 and the second image-forming assembly 7,
Realize tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude measurement, and tested 13 upper and lower surfaces of eyeglass scatter hot spot space
Difference in height is center of lens physical thickness D0；
(5) it readjusts the position of the second reflecting mirror 12 and records in the first photoelectric sensor assembly 8 and occur interference again now
As when the second reflecting mirror 12 position d2；
(6) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece 13, calculation formula are as follows:
Embodiment 3:
In a kind of lens index detection device, including light source module, center of lens physical thickness detection module and eyeglass
Heart optical thickness detection module, the light source module include for exporting the first light source component 1 of collimated light beam, can be removed
One focus pack 4, the center of lens physical thickness detection module includes the first image-forming assembly 6 and the second image-forming assembly 7, described
Center of lens optical thickness detection module includes the first photoelectric sensor assembly 8, the second photoelectric sensor assembly 9, spectrum groupware 10, breathes out
Special graceful plate 30, moveable second reflecting mirror 12, second photoelectric sensor assembly 9, Hartmann's plate 30, spectrum groupware 10, can
The first focus pack 4 and first light source component 1 removed is set gradually from front to back along primary optic axis direction A, the Hartmann
The upper surface of plate 30 is coated with reflectance coating 32 for partially reflecting the light beam of first light source component 1, the following table of Hartmann's plate 30
Face is equipped with array loophole 31 and is used to project array of light spots, moveable second reflection to the second photoelectric sensor assembly 9
The side of spectrum groupware 10 is arranged in mirror 12, and the other side of spectrum groupware 10 is arranged in first photoelectric sensor assembly 8, described
The focal plane of first focus pack 4 between spectrum groupware 10 and Hartmann's plate 30 for placing tested eyeglass 13, described first
Image-forming assembly 6 and the second image-forming assembly 7 are separately positioned on above and below tested eyeglass 13, when removing the first focus pack 4,
The first light source component 1 is along the collimated light beam that primary optic axis direction A is transmitted transmitted through projecting measured lens after spectrum groupware 10
On piece 13 and Hartmann's plate 30 and enter the second photoelectric sensor assembly 9, and Hartmann's plate 30 is detected by the second photoelectric sensor assembly 9
Incoming array of light spots is thrown, after being inserted into the first focus pack 4, the first light source component 1 is transmitted along primary optic axis direction A
Collimated light beam is focused transmitted through spectrum groupware 10 and by the first focus pack 4 in tested eyeglass 13, while on tested eyeglass 13,
Lower surface generates scattering hot spot and is simultaneously detected by the first image-forming assembly 6 and the second image-forming assembly 7, and in addition first light source component 1 is along the
The light beam of one optical axis direction A transmission is also divided into two bundles through spectrum groupware 10, a branch of to project on the second reflecting mirror 12 and by second
Reflecting mirror 12 reflects and backtracking, further leads to and is transmitted in the first photoelectric sensor assembly 8 by spectrum groupware 10, and another beam is thrown
It is mapped on Hartmann's plate 30 and the backtracking by the reflection of the upper surface of Hartmann's plate 30, is also reflected into the via spectrum groupware 10
In one photoelectric sensor assembly 8, the light beam that two beams return, which passes through spectrum groupware 10 and enters in the first photoelectric sensor assembly 8, to be used for
Detect interference phenomenon.
The first light source component 1 includes one first monochromatic LED testing light source 15, the first monochromatic LED testing light source
15 can be patch packing forms, which can be the green light of 530nm or 540nm, be also possible to
The blue light of 450nm perhaps 480nm is also possible to the feux rouges etc. of 610nm or 630nm, which the first monochromatic LED testing light source 15 is
A wavelength, so that it may the refractive index at which wavelength tested, the front of the first monochromatic LED testing light source 15 is equipped with one first
The front of loophole 17, first loophole 17 is equipped with one first collimation lens 19, the first monochromatic LED testing light source 15
It is arranged in the rear focus of the first collimation lens 19, for sending out the first monochromatic LED testing light source 15 through the first loophole 17
Light beam out projects on the first focus pack 4 via collimated light beam is become after the first collimation lens 19.The test of first monochromatic LED
Light source 15 is at low cost, and energy consumption is small, using safer；First monochromatic LED testing light source 15 is converted into collimated light beam, optical path can be made
It couples more reliable.
The spectrum groupware 10 includes a first semi-transparent semi-reflecting light splitting piece 21, and first focus pack 4 includes one poly-
Focus lens 25, the center of first light splitting piece 21, the center of condenser lens 25, the center of the first collimation lens 19, first are thoroughly
The center of unthreaded hole 17 and the center of the first monochromatic LED testing light source 15 are respectively positioned on the A of primary optic axis direction, second reflecting mirror
The center at 12 center, the center of the first light splitting piece 21 and the first photoelectric sensor assembly 8 is respectively positioned on hangs down with primary optic axis direction A phase
On the second straight optical axis direction B, when the second reflecting mirror 12 is located at the left side of the first light splitting piece 21, first light splitting piece 21
The angle of side and the second optical axis direction B are 45 °, when the second reflecting mirror 12 is located at the right side of the first light splitting piece 21, described the
The angle of the side of one light splitting piece 21 and the second optical axis direction B are 135 °.Element needed for the setting is few, structure is simple, and optical path
Coupling is reliable.
First image-forming assembly 6 and the second image-forming assembly 7 are a band tiltedly as the camera 27 of camera lens 26, described oblique as mirror
First 26 optical axis direction with respect to the angle of primary optic axis direction A with tiltedly as the imaging core of the opposite camera 27 of the optical axis direction of camera lens 26
The angle of plate plane meets the image conjugate relation of imaging lens inclination imaging.Tiltedly picture 26 imaging effect of camera lens is more preferable, acquisition
Image is more acurrate.
First photoelectric sensor assembly 8 is an area array cameras 27, line-scan digital camera 27 or photodiode.The setting can
Keep interference phenomenon detection more acurrate.
Second photoelectric sensor assembly 9 is a Position-Sensitive Detector or area array cameras 27.The setting can make eyeglass position
It sets calibration and focal power calculating is more acurrate.
It further include being positioned close to mirror holder 28 at 4 focal plane of the first focus pack and for driving mirror holder 28 to move left and right
Motor, for driving the tested eyeglass 13 being mounted on mirror holder 28 to automatically move.The setting, which can drive, to be mounted on mirror holder 28
Tested eyeglass 13 automatically move, more convenient operation, position control is more accurate.
There are following differences: 1, the first focus pack 4 compared to the lens index detection device in embodiment 1 for the present embodiment
Become removable structure, can be removed by automatically controlled translation or rotation；2, the first reflecting mirror 11 becomes Hartmann's plate 30；3, remove
Second focus pack 5.
In this implementation, the spectral width of the first monochromatic LED testing light source 15 is 10nm~50nm, and central wavelength is
546nm；The diameter of first loophole 17 is less than 0.5mm, and the preferably diameter of the first loophole 17 is less than 0.2mm, such as
0.15mm；First loophole 17 is less than 0.5mm, such as 0.2mm at a distance from the first monochromatic LED testing light source 15；It is described
The focal length of first collimation lens 19 is greater than 50mm, and the preferably focal length of the first collimation lens 19 is greater than 100mm；The condenser lens 25
Focal length be greater than 50mm, the preferably focal length of condenser lens 25 is greater than 100mm, such as 120mm；First light splitting piece 21 is to first
The Transflective ratio of the light beam of monochromatic LED testing light source 15 is 1:1；The structure of Hartmann's plate 30 is as shown in Figure 6,7, upper surface plating
Part reflectance coating 32, the light source reflectivity for 500-600nm are 80%-90%, and array circular hole formula metal film, shape are plated in lower surface
At array loophole 31, the row and column of array loophole 31 is odd number, and most central in array loophole 31
The diameter of circular hole be greater than the diameter of remaining circular hole, such as central circular hole diameter 0.5mm, other Circularhole diameters are 0.2mm, circular hole
Center is away from for 0.5-0.6mm.
Lens index detection device working principle of the present invention is as follows:
Before tested eyeglass 13 and the first focus pack 4 move into, first light source component 1, the first light source group are opened
Part 1 is along the collimated light beam that primary optic axis direction A is transmitted successively transmitted through entering the second light after spectrum groupware 10 and Hartmann's plate 30
In electric probe assembly 9, and incoming array of light spots is thrown by the second photoelectric sensor assembly 9 detection Hartmann's plate 30, and by its position
Set the reference position calculated as subsequent tested 13 position of eyeglass adjustment and focal power；The first focus pack 4 is then moved into, it is described
First light source component 1 after the first focus pack 4, is divided into two bundles along the light beam that primary optic axis direction A is transmitted by spectrum groupware 10,
It is a branch of project on the second reflecting mirror 12 and by the reflection of the second reflecting mirror 12 and backtracking, another beam project Hartmann's plate 30
It is upper and backtracking, the light beam that two beams return pass through spectrum groupware 10 and enter the by the reflection of the upper surface of Hartmann's plate 30
For detecting interference phenomenon in one photoelectric sensor assembly 8, the position d1 of the second reflecting mirror 12 when record interferes phenomenon；It removes
First focus pack 4, and tested eyeglass 13 is moved into, the actual spot array come in by the monitoring projection of the second photoelectric sensor assembly 9,
And according to the centre bit of the calculations of offset of the reference position obtained in the position of actual spot array and step (1) eyeglass at this time
It sets, user is then instructed to adjust the position of tested eyeglass 13, be overlapped tested 13 center of eyeglass with optical path Center, that is, complete tested
The position of eyeglass 13 adjusts；Simultaneously can also according in the position of actual spot array and step (1) reference position of acquisition it is inclined
It moves, to calculate the focal power of tested eyeglass 13, calculates eyeglass using the offset of the position and reference position of actual spot array
Center and focal power be the prior art；Then the first focus pack 4 is moved into again, readjusts the position of the second reflecting mirror 12
It sets and records the difference for occurring position d2, d2 and the d1 of the second reflecting mirror 12 when interference phenomenon in the first photoelectric sensor assembly 8 again
Value is related to center of lens optical thickness, while first light source component 1 can also be saturating along the collimated light beam that primary optic axis direction A is transmitted
It penetrated spectrum groupware 10 and was focused by the first focus pack 4 in tested eyeglass 13, and generated in tested 13 upper and lower surfaces of eyeglass
Light scattering is realized by the first image-forming assembly 6 and the second image-forming assembly 7 respectively to the scattering light imaging of tested 13 upper and lower surfaces of eyeglass
Tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude measurement, and tested 13 upper and lower surfaces of eyeglass scatter hot spot spatial altitude
Difference is center of lens physical thickness D0；Then according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter
D1, d2, to calculate the refractive index of tested eyeglass 13, calculation formula are as follows:
Lens index detection device of the present invention is to be generated by detection focus on light beam in tested 13 upper and lower surfaces of eyeglass
Scatter hot spot spatial altitude difference and interference phenomenon come obtain calculate refractive index relevant parameter, without making prism, without
The related angle of prism is detected, more convenient operation, and shorten detection cycle, on-line quick detection may be implemented；
Without making prism, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And it scatters
The spatial altitude difference of hot spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass；
Whether the center that eyeglass to be measured is in addition also corrected using Hartmann's plate 30 is aligned with optical path Center, and according to Hartmann's plate 30
The drift condition of the array of light spots detected detects the focal power of eyeglass.
Embodiment 4:
A kind of lens index detection method, this method are based on the lens index detection device in embodiment 3, it is wrapped
Include following steps:
(1) before tested eyeglass 13 and the first focus pack 4 move into, first light source component 1 is opened, is visited by the second photoelectricity
It surveys the detection Hartmann's plate 30 of component 9 and throws incoming array of light spots, and adjusted its position as subsequent tested 13 position of eyeglass
The reference position calculated with focal power；
(2) the first focus pack 4 is moved into, interference phenomenon is detected by the first photoelectric sensor assembly 8, and record and interfere now
As when the second reflecting mirror 12 position d1；
(3) the first focus pack 4 is removed, and moves into tested eyeglass 13, is come in by the monitoring projection of the second photoelectric sensor assembly 9
Actual spot array, and according to the calculations of offset of the reference position obtained in the position of actual spot array and step (1) this
When eyeglass center, then instruct user to adjust the position of tested eyeglass 13, make tested 13 center of eyeglass and optical path Center
It is overlapped, that is, completes the position adjustment of tested eyeglass 13；It can also be obtained simultaneously according in the position and step (1) of actual spot array
Reference position offset, to calculate the focal power of tested eyeglass 13；
(4) the first focus pack 4 is moved into again, readjusts the position of the second reflecting mirror 12 and records the first photodetection group
Occurs the position d2 of the second reflecting mirror 12 when interference phenomenon in part 8 again, while by the first image-forming assembly 6 and the second image-forming assembly
7, respectively to the scattering light imaging of tested 13 upper and lower surfaces of eyeglass, realize that tested 13 upper and lower surfaces of eyeglass scatter hot spot spatial altitude
Measurement, and tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude difference is center of lens physical thickness D0；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece 13, calculation formula are as follows:
Embodiment 5:
In a kind of lens index detection device, including light source module, center of lens physical thickness detection module and eyeglass
Heart optical thickness detection module, the light source module include the first light source component 1 and second light source for exporting collimated light beam
Component 2, the first focus pack 4 and the first light-integrating subassembly 14, the center of lens physical thickness detection module include the first imaging
Component 6 and the second image-forming assembly 7, the center of lens optical thickness detection module include the first photoelectric sensor assembly 8, the second light
Electric probe assembly 9, spectrum groupware 10, Hartmann's plate 30, moveable second reflecting mirror 12, second photoelectric sensor assembly 9,
Hartmann's plate 30, spectrum groupware 10, the first light-integrating subassembly 14 and second light source component 2 along primary optic axis direction A from front to back according to
Secondary setting, the first light source component 1 are arranged in the side of the first light-integrating subassembly 14, and the setting of the first focus pack 4 is the
Between one light source assembly 1 and the first light-integrating subassembly 14, the upper surface of Hartmann's plate 30 be coated with reflectance coating 32 for part instead
The light beam of first light source component 1 is penetrated, the lower surface of Hartmann's plate 30 is equipped with array loophole 31 and is used for the second photoelectricity
Probe assembly 9 projects array of light spots, and moveable second reflecting mirror 12 is arranged in the side of spectrum groupware 10, and described first
Photoelectric sensor assembly 8 is arranged in the other side of spectrum groupware 10, the focal plane of first focus pack 4 be located at spectrum groupware 10 with
For placing tested eyeglass 13 between Hartmann's plate 30, first image-forming assembly 6 and the second image-forming assembly 7 be separately positioned on by
It surveys above and below eyeglass 13, the light beam that the first light source component 1 exports is after the reflection of the first light-integrating subassembly 14 along first
Optical axis direction A transmission, and focused by the first focus pack 4 in tested eyeglass 13, while tested 13 upper and lower surfaces of eyeglass generate
Scattering hot spot is simultaneously detected by the first image-forming assembly 6 and the second image-forming assembly 7, while first light source component 1 is along primary optic axis direction A
The light beam of transmission is also divided into two bundles through spectrum groupware 10, a branch of to project on the second reflecting mirror 12 and reflected by the second reflecting mirror 12
And backtracking, further lead to and be transmitted in the first photoelectric sensor assembly 8 by spectrum groupware 10, another beam projects Hartmann's plate
It is reflected and backtracking on 30 and by the upper surface of Hartmann's plate 30, is also reflected into the first photodetection group via spectrum groupware 10
In part 8, the light beam that two beams return is entered in the first photoelectric sensor assembly 8 for detecting interference phenomenon, the second light source group
The collimated light beam that part 2 is transmitted along primary optic axis direction A is transmitted through the first light-integrating subassembly 14, spectrum groupware 10, tested 13 and of eyeglass
It is transmitted to after on Hartmann's plate 30 in second photoelectric sensor assembly 9, and is thrown by the second photoelectric sensor assembly 9 detection Hartmann's plate 30
Incoming array of light spots.
The first light source component 1 includes one first monochromatic LED testing light source 15, the first monochromatic LED testing light source
15 can be patch packing forms, which can be the green light of 530nm or 540nm, be also possible to
The blue light of 450nm perhaps 480nm is also possible to the feux rouges etc. of 610nm or 630nm, which the first monochromatic LED testing light source 15 is
A wavelength, so that it may the refractive index at which wavelength tested, the front of the first monochromatic LED testing light source 15 is equipped with one first
The front of loophole 17, first loophole 17 is equipped with one first collimation lens 19, the first monochromatic LED testing light source 15
It is arranged in the rear focus of the first collimation lens 19, for sending out the first monochromatic LED testing light source 15 through the first loophole 17
Light beam out projects on the first focus pack 4 via collimated light beam is become after the first collimation lens 19.The test of first monochromatic LED
Light source 15 is at low cost, and energy consumption is small, using safer；First monochromatic LED testing light source 15 is converted into collimated light beam, optical path can be made
It couples more reliable.
The second light source component 2 includes one second monochromatic LED testing light source 16, the second monochromatic LED testing light source
16 can be patch packing forms, which can be the green light of 530nm or 540nm, be also possible to
The blue light of 450nm perhaps 480nm is also possible to the feux rouges etc. of 610nm or 630nm, the second monochromatic LED testing light source 16
Front be equipped with one second loophole 18, the front of second loophole 18 is equipped with one second collimation lens 20, described second
Monochromatic LED testing light source 16 is arranged in the rear focus of the second collimation lens 20, for the second monochromatic LED testing light source 16 is saturating
The light beam of the second loophole 18 sending is crossed via becoming collimated light beam after the second collimation lens 20.Second monochromatic LED testing light source
16 is at low cost, and energy consumption is small, using safer；Second monochromatic LED testing light source 16 is converted into collimated light beam, optical path can be made to couple
It is more reliable.
The spectrum groupware 10 includes a first semi-transparent semi-reflecting light splitting piece 21, the center of second reflecting mirror 12, the
The center of one light splitting piece 21 and the center of the first photoelectric sensor assembly 8 are respectively positioned on second light perpendicular with primary optic axis direction A
On axis direction B, when the second reflecting mirror 12 is located at the left side of the first light splitting piece 21, the side and second of first light splitting piece 21
The angle of optical axis direction B is 45 °, when the second reflecting mirror 12 is located at the right side of the first light splitting piece 21, first light splitting piece 21
Side and the angle of the second optical axis direction B be 135 °.Element needed for the setting is few, structure is simple, and optical path coupling is reliable.
First light-integrating subassembly 14 includes a second semi-transparent semi-reflecting light splitting piece 22, and first focus pack 4 includes
One condenser lens 25, center, the center of the first loophole 17, the first collimation lens of the first monochromatic LED testing light source 15
The center at 19 center, the center of condenser lens 25 and the second light splitting piece 22 is respectively positioned on perpendicular with primary optic axis direction A
On three optical axis direction C, center, the center of the second loophole 18, the second collimation lens of the second monochromatic LED testing light source 16
20 center and the center of the second light splitting piece 22 are respectively positioned on the A of primary optic axis direction, when the first monochromatic LED testing light source 15 is located at
When the left side of the second light splitting piece 22, the side of second light splitting piece 22 and the angle of third optical axis direction C are 135 °, when first
When monochromatic LED testing light source 15 is located at the right side of the second light splitting piece 22, the side and third optical axis side of second light splitting piece 22
It is 45 ° to the angle of C.First light-integrating subassembly, 14 structure is simple, so that first light source component 1 and second light source component 2 export
Collimated light beam need to can only be transmitted along primary optic axis direction A by primary transmission or primary event, the energy loss of light beam is small,
Be conducive to the accurate and reliable progress of detection.
First image-forming assembly 6 and the second image-forming assembly 7 are a band tiltedly as the camera 27 of camera lens 26, described oblique as mirror
First 26 optical axis direction with respect to the angle of primary optic axis direction A with tiltedly as the imaging core of the opposite camera 27 of the optical axis direction of camera lens 26
The angle of plate plane meets the image conjugate relation of imaging lens inclination imaging.Tiltedly picture 26 imaging effect of camera lens is more preferable, acquisition
Image is more acurrate.
First photoelectric sensor assembly 8 is an area array cameras 27, line-scan digital camera 27 or photodiode.The setting can
Keep interference phenomenon detection more acurrate.
Second photoelectric sensor assembly 9 is a Position-Sensitive Detector or area array cameras 27.The setting can make eyeglass position
It sets calibration and focal power calculating is more acurrate.
It further include being positioned close to mirror holder 28 at 4 focal plane of the first focus pack and for driving mirror holder 28 to move left and right
Motor, for driving the tested eyeglass 13 being mounted on mirror holder 28 to automatically move.The setting, which can drive, to be mounted on mirror holder 28
Tested eyeglass 13 automatically move, more convenient operation, position control is more accurate.
There are following differences: 1, the first focus pack 4 compared to the lens index detection device in embodiment 3 for the present embodiment
Become fixed structure；2, it is additionally arranged second light source component 2, using second light source component 2 come the centre bit to tested eyeglass 13
Set and be adjusted and focal power is calculated, and first light source component 1 be used to detect scattering hot spot spatial altitude it is poor and
Interference phenomenon simultaneously calculates refractive index.
In the present embodiment, the spectral width of the first monochromatic LED testing light source 15 is 10nm~50nm, and central wavelength is
546nm；The spectral width of the second monochromatic LED testing light source 16 is 10nm~50nm, central wavelength 546nm；Described
The diameter of one loophole 17 is less than 0.5mm, and the preferably diameter of the first loophole 17 is less than 0.2mm, such as 0.15mm；Described first
Loophole 17 is less than 0.5mm, such as 0.2mm at a distance from the first monochromatic LED testing light source 15；Second loophole 18 it is straight
Diameter is less than 0.5mm, and the preferably diameter of the second loophole 18 is less than 0.2mm；Second loophole 18 and the second monochromatic LED are tested
The distance of light source 16 is less than 0.5mm, such as 0.2mm；The focal length of first collimation lens 19 is greater than 50mm, the preferably first collimation
The focal length of lens 19 is greater than 100mm；The focal length of second collimation lens 20 is greater than 50mm, the preferably coke of the second collimation lens 20
Away from greater than 100mm；The focal length of the condenser lens 25 is greater than 50mm, and the preferably focal length of condenser lens 25 is greater than 100mm；Described
One light splitting piece 21 is 1:1 to the Transflective ratio of 500-600nm light source assembly.
Lens index detection device working principle of the present invention is as follows:
Before the immigration of tested eyeglass 13, first light source component 1 is closed, opens second light source component 2, the second light source
Component 2 is along the collimated light beam that primary optic axis direction A is transmitted after on the first light-integrating subassembly 14, spectrum groupware 10 and Hartmann's plate 30
Incoming array of light spots is thrown into the second photoelectric sensor assembly 9, and by the second photoelectric sensor assembly 9 detection Hartmann's plate 30,
And the reference position for calculating its position as subsequent tested 13 position of eyeglass adjustment and focal power；It is then shut off second light source group
Part 2, opens first light source component 1, and the first light source component 1 is closed along the collimated light beam that third optical axis direction C is transmitted through first
Optical assembly 14 transmits after reflecting along primary optic axis direction A, is divided into two bundles by spectrum groupware 10, a branch of to project the second reflecting mirror 12
It is upper and by the reflection of the second reflecting mirror 12 and backtracking, another beam project on Hartmann's plate 30 and by the upper table of Hartmann's plate 30
Face reflection and backtracking, the light beam that two beams return, which passes through spectrum groupware 10 and enters in the first photoelectric sensor assembly 8, to be used for
Interference phenomenon is detected, the position d1 of the second reflecting mirror 12 when record interferes phenomenon；It is then shut off first light source component 1, is beaten
Second light source component 2 is opened, and moves into tested eyeglass 13, the actual spot battle array come in by the monitoring projection of the second photoelectric sensor assembly 9
Column, and according to the center of the calculations of offset of the reference position obtained in the position of actual spot array and step (1) eyeglass at this time
Then position instructs user to adjust the position of tested eyeglass 13, be overlapped tested 13 center of eyeglass with optical path Center, i.e. completion quilt
Survey the position adjustment of eyeglass 13；It simultaneously can also be according to the reference position obtained in the position and step (1) of actual spot array
Offset, to calculate the focal power of tested eyeglass 13, according to the calculations of offset eyeglass of the position of actual spot array and reference position
Center and focal power be the prior art；It is then shut off second light source component 2, opens first light source component 1, is readjusted
The position of second reflecting mirror 12 simultaneously records in the first photoelectric sensor assembly 8 and occurs the position of the second reflecting mirror 12 when interference phenomenon again
The difference for setting d2, d2 and d1 is related with center of lens optical thickness, while the light beam that first light source component 1 exports can also be by first
Focus pack 4 focuses at tested eyeglass 13, and generates light scattering in tested 13 upper and lower surfaces of eyeglass, by the first image-forming assembly 6
With the second image-forming assembly 7 respectively to the scattering light imaging of tested 13 upper and lower surfaces of eyeglass, realize that tested 13 upper and lower surfaces of eyeglass dissipate
The measurement of hot spot spatial altitude is penetrated, and tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude difference is that center of lens physics is thick
Spend D0；Then according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate tested eyeglass
13 refractive index, calculation formula are as follows:
Lens index detection device of the present invention is to be generated by detection focus on light beam in tested 13 upper and lower surfaces of eyeglass
Scatter hot spot spatial altitude difference and interference phenomenon come obtain calculate refractive index relevant parameter, without making prism, without
The related angle of prism is detected, more convenient operation, and shorten detection cycle, on-line quick detection may be implemented；
Without making prism, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And it scatters
The spatial altitude difference of hot spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass；
Whether the center that eyeglass to be measured is in addition also corrected using Hartmann's plate 30 is aligned with optical path Center, and according to Hartmann's plate 30
The drift condition of the array of light spots detected detects focal power.
Embodiment 6:
A kind of lens index detection method, this method are based on the lens index detection device in embodiment 5, it is wrapped
Include following steps:
(1) before the immigration of tested eyeglass 13, first light source component 1 is closed, second light source component 2 is opened, by the second light
Electric probe assembly 9 detects Hartmann's plate 30 and throws incoming array of light spots, and using its position as subsequent tested 13 position of eyeglass
The reference position that adjustment and focal power calculate；
(2) second light source component 2 is closed, first light source component 1 is opened, is interfered by being detected in the first photoelectric sensor assembly 8
Phenomenon, the position d1 of the second reflecting mirror 12 when record interferes phenomenon；
(3) first light source component 1 is closed, second light source component 2 is opened, and moves into tested eyeglass 13, is visited by the second photoelectricity
The actual spot array that the monitoring projection of component 9 is come in is surveyed, and according to the ginseng obtained in the position of actual spot array and step (1)
The center for examining the calculations of offset of position eyeglass at this time, then instructs user to adjust the position of tested eyeglass 13, makes measured lens
Piece (13) center is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass 13；It simultaneously can also be according to actual spot array
Position and step (1) in obtain reference position offset, to calculate the focal power of tested eyeglass 13；
(4) second light source component 2 is closed, first light source component 1 is opened, readjusts the position of the second reflecting mirror 12 and note
Record the difference and mirror for occurring position d2, d2 and the d1 of the second reflecting mirror 12 when interference phenomenon in the first photoelectric sensor assembly 8 again
Piece central optical thickness is related, while the light beam that first light source component 1 exports can also be by the first focus pack 4 in tested eyeglass 13
Place focuses, and generates light scattering in tested 13 upper and lower surfaces of eyeglass, right respectively by the first image-forming assembly 6 and the second image-forming assembly 7
Tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude measurement is realized in tested 13 upper and lower surfaces of eyeglass scattering light imaging, and
Tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude difference is center of lens physical thickness D0；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece 13, calculation formula are as follows:
Embodiment 7:
In a kind of lens index detection device, including light source module, center of lens physical thickness detection module and eyeglass
Heart optical thickness detection module, the light source module include the first light source component 1 and second light source for exporting collimated light beam
Component 2, third light source assembly 3, the first light-integrating subassembly 14, the second light-integrating subassembly 29 and the first focus pack 4, in the eyeglass
Heart physical thickness detection module includes the first image-forming assembly 6 and the second image-forming assembly 7, and the center of lens optical thickness detects mould
Block includes the first photoelectric sensor assembly 8, the second photoelectric sensor assembly 9, spectrum groupware 10, Hartmann's plate 30, moveable second
Reflecting mirror 12, second photoelectric sensor assembly 9, Hartmann's plate 30, spectrum groupware 10, the first focus pack 4, the first light combination group
Part 14, first light source component 1 are set gradually from front to back along primary optic axis direction A, and the setting of the second reflecting mirror 12 is being divided
The other side of spectrum groupware 10, first focus pack 4 is arranged in the side of component 10, first photoelectric sensor assembly 8
Focal plane between spectrum groupware 10 and Hartmann's plate 30 for placing tested eyeglass 13,6 He of the first image-forming assembly
Second image-forming assembly 7 is separately positioned on above and below tested eyeglass 13, and the upper surface of Hartmann's plate 30 is coated with reflection
Film 32 is equipped with array loophole 31 for partially reflecting the light beam of second light source component 2, the lower surface of Hartmann's plate 30；
The collimated light beam that the first light source component 1 exports transmitted through still being transmitted along primary optic axis direction A after the first light-integrating subassembly 14, and
It is focused by the first focus pack 4 in tested eyeglass 13, while tested 13 upper and lower surfaces of eyeglass generate scattering hot spot and by first
Image-forming assembly 6 and the detection of the second image-forming assembly 7；The third light source assembly 3 is located in the rear focus of the first focus pack 4, institute
The light beam for stating the output of third light source assembly 3 successively focuses after the second light-integrating subassembly 29 and the reflection of the first light-integrating subassembly 14 through first
Component 4 is focused to collimated light beam and transmits along primary optic axis direction A, and the third light source assembly 3 is transmitted along primary optic axis direction A
Collimated light beam transmitted through after tested eyeglass 13 and Hartmann's plate 30, by the detection of the second photoelectric sensor assembly 9 transmitted through Hartmann
The array of light spots of plate 30；The collimated light beam that the second light source component 2 exports is closed transmitted through the second light-integrating subassembly 29 and through first
Optical assembly 14 transmits after reflecting along primary optic axis direction A, then is divided into two bundles through spectrum groupware 10, a branch of to project the second reflecting mirror
It is reflected and backtracking on 12 and by the second reflecting mirror 12, further leads to and the first photoelectric sensor assembly is transmitted to by spectrum groupware 10
In 8, another beam is projected on Hartmann's plate 30 and is reflected and backtracking by 30 upper surface of Hartmann's plate, also via spectrum groupware
10 are reflected into the first photoelectric sensor assembly 8, and the light beam that two beams return enters dry for detecting in the first photoelectric sensor assembly 8
Relate to phenomenon.
The spectrum groupware 10 includes a first semi-transparent semi-reflecting light splitting piece 21, in first photoelectric sensor assembly 8
The center of the heart, the center of the first light splitting piece 21 and the second reflecting mirror 12 is respectively positioned on second light perpendicular with primary optic axis direction A
On axis direction B, in the present embodiment, second reflecting mirror 12 is located at the right side of the first light splitting piece 21, first light splitting piece 21
Side and the angle of the second optical axis direction B be 135 °, certain second reflecting mirror 12 may be alternatively located at the left side of the first light splitting piece 21,
The angle of the side of such first light splitting piece 21 and the second optical axis direction B are 45 °.Element needed for the setting is few, structure is simple, and
Optical path coupling is reliable.
First light-integrating subassembly 14 includes a second semi-transparent semi-reflecting light splitting piece 22, the second light source component 2 and the
The same side of the second light splitting piece 22 is arranged in three light source assemblies 3, and second light-integrating subassembly 29 includes a setting in the second light splitting
Semi-transparent semi-reflecting third light splitting piece 23 between piece 22 and second light source component 2；The first light source component 1 is arranged at second point
The rear of mating plate 22, and the collimated light beam of its output projects rear on the second light splitting piece 22 transmit along primary optic axis direction A；
The collimated light beam that the second light source component 2 exports is transmitted along with primary optic axis direction A perpendicular third optical axis direction C, so
After project on third light splitting piece 23 after transmit, then along primary optic axis direction A transmission after the reflection of the second light splitting piece 22；Institute
The light beam for stating the output of third light source assembly 3 is transmitted along with the 4th third optical axis direction C perpendicular optical axis direction D, then successively
It is transmitted after third light splitting piece 23 and the reflection of the second light splitting piece 22 along primary optic axis direction A；Second light splitting piece 22 and third
When light splitting piece 23 is in 45 ° with third optical axis direction C, the second light source component 2 is located at the right side of the second light splitting piece 22 and the
Three light source assemblies 3 are located at the top of third optical axis direction C, second light splitting piece 22 and third light splitting piece 23 with the second optical axis
When direction B is in 135 °, the second light source component 2 is located at the left side of the second light splitting piece 22 and third light source assembly 3 is located at third
The top of optical axis direction C, second light splitting piece 22 and third optical axis direction C is in 45 ° and third light splitting piece 23 and third optical axis
When direction C is in 135 °, the second light source component 2 is located at the right side of the second light splitting piece 22 and third light source assembly 3 is located at third
The lower section of optical axis direction C, second light splitting piece 22 and third optical axis direction C is in 135 ° and third light splitting piece 23 and third optical axis
When direction C is in 45 °, the second light source component 2 is located at the left side of the second light splitting piece 22 and third light source assembly 3 is located at third light
The lower section of axis direction C.First light-integrating subassembly 14 and 29 structure of the second light-integrating subassembly are simple, so that first light source component 1 and
The collimated light beam of two light source assemblies, 2/ third light source assembly 3 output only need to pass through simple transmission and/or reflection can be along first
Optical axis direction A transmission, the energy loss of light beam is small, is conducive to the accurate and reliable progress of detection.
The first light source component 1 includes semiconductor laser, and the semiconductor laser is arranged in the second light splitting piece
22 rear, and the collimated light beam of its output projects rear on the second light splitting piece 22 transmit along primary optic axis direction A.Partly lead
Body laser is small in size, light-weight, operating is reliable, little power consumption, high-efficient.
The second light source component 2 includes one first monochromatic LED testing light source 15, the first monochromatic LED testing light source
15 can be patch packing forms, which can be the green light of 530nm or 540nm, be also possible to
The blue light of 450nm perhaps 480nm is also possible to the feux rouges etc. of 610nm or 630nm, which the first monochromatic LED testing light source 15 is
A wavelength, so that it may the refractive index at which wavelength tested, the front of the first monochromatic LED testing light source 15 is equipped with one first
The front of loophole 17, first loophole 17 is equipped with one first collimation lens 19, the first monochromatic LED testing light source 15
It is arranged in the rear focus of the first collimation lens 19, for sending out the first monochromatic LED testing light source 15 through the first loophole 17
Light beam out is via becoming collimated light beam after the first collimation lens 19, the collimation that the first monochromatic LED testing light source 15 exports
Light beam along the third optical axis direction C perpendicular with primary optic axis direction A transmitted through third light splitting piece 23, and through the second light splitting piece 22
It is transmitted after reflection along primary optic axis direction A；The center of second light splitting piece 22, the center of third light splitting piece 23, the first collimation
The center at the center of lens 19, the center of the first loophole 17 and the first monochromatic LED testing light source 15 is respectively positioned on and primary optic axis
On direction A perpendicular third optical axis direction C.First monochromatic LED testing light source 15 is at low cost, and energy consumption is small, using safer；It will
First monochromatic LED testing light source 15 is converted to collimated light beam, and optical path coupling can be made more reliable.
The third light source assembly 3 includes one second monochromatic LED testing light source 16, the second monochromatic LED testing light source
16 can be patch packing forms, which can be identical as the first monochromatic LED testing light source 15, can be with
It is that the green light of 530nm perhaps 540nm is also possible to the blue light of 450nm perhaps 480nm and is also possible to 610nm or 630nm
Feux rouges etc., the front of the second monochromatic LED testing light source 16 are equipped with one second loophole 18, the second monochromatic LED test
Light source 16 is arranged in the rear focus of the first focus pack 4, for the second monochromatic LED testing light source 16 to be penetrated the second loophole
18 light beams issued are via becoming collimated light beam after the first focus pack 4, the standard that the second monochromatic LED testing light source 16 exports
Collimated optical beam projects on third light splitting piece 23 along the 4th optical axis direction D perpendicular with third optical axis direction C, and successively through third
It is transmitted after two secondary reflections of light splitting piece 23 and the second light splitting piece 22 along primary optic axis direction A；The center of the third light splitting piece 23,
The center of second loophole 18 and the center of the second monochromatic LED testing light source 16 are respectively positioned on perpendicular with third optical axis direction C
On 4th optical axis direction D.Second monochromatic LED testing light source 16 is at low cost, and energy consumption is small, using safer；Second monochromatic LED is surveyed
Examination light source 16 is converted to collimated light beam, can carry out focal power calculating.
First focus pack 4 includes a condenser lens 25.The setting structure is simple.
First image-forming assembly 6 and the second image-forming assembly 7 are a band tiltedly as the camera 27 of camera lens 26, described oblique as mirror
First 26 optical axis direction with respect to the angle of primary optic axis direction A with tiltedly as the imaging core of the opposite camera 27 of the optical axis direction of camera lens 26
The angle of plate plane meets the image conjugate relation of imaging lens inclination imaging.Tiltedly picture 26 imaging effect of camera lens is more preferable, acquisition
Image is more acurrate.
First photoelectric sensor assembly 8 is an area array cameras 27, line-scan digital camera 27 or photodiode.The setting can
Keep interference phenomenon detection more acurrate.
Second photoelectric sensor assembly 9 is a Position-Sensitive Detector or area array cameras 27.The setting can make eyeglass position
It is more acurrate to set calibration.
It further include being positioned close to mirror holder 28 at 4 focal plane of the first focus pack and for driving mirror holder 28 to move left and right
Motor, for driving the tested eyeglass 13 being mounted on mirror holder 28 to automatically move.The setting, which can drive, to be mounted on mirror holder 28
Tested eyeglass 13 automatically move, more convenient operation, position control is more accurate.
In the present embodiment, the diameter of the collimated light beam of the semiconductor laser output is less than 3mm, such as 1.5mm, wavelength
Greater than 650nm；The spectral width of the first monochromatic LED testing light source 15 is 10nm~50nm, central wavelength 546nm；Institute
The spectral width for stating the second monochromatic LED testing light source 16 is 10nm~50nm, central wavelength 546nm；First loophole
17 diameter is less than 0.5mm, and the preferably diameter of the first loophole 17 is less than 0.2mm；First loophole 17 and first is monochromatic
The distance of LED testing light source 15 is less than 0.5mm, such as 0.2mm；The diameter of second loophole 18 is less than 0.5mm, preferably the
The diameter of two loopholes 18 is less than 0.2mm；Second loophole 18 is less than at a distance from the second monochromatic LED testing light source 16
0.5mm, such as 0.2mm；The focal length of first collimation lens 19 is greater than 50mm, and the focal length of preferably the first collimation lens 19 is greater than
100mm；The focal length of the condenser lens 25 is greater than 50mm, and the preferably focal length of condenser lens 25 is greater than 100mm；Second loophole 18
Distance to condenser lens 25 is equal with the focal length of condenser lens 25；First light splitting piece 21 and the 4th light splitting piece 24, to list
The Transflective ratio of the light beam of color LED testing light source is 1:1, is greater than reflectivity for the light beam transmissivity of semiconductor laser,
Second light splitting piece 22 and third light splitting piece 23, the Transflective ratio to the light beam of monochromatic LED testing light source are 1:1.
The present embodiment lens index detection device working principle is as follows:
Before the immigration of tested eyeglass 13, first light source component 1 and second light source component 2 are closed, opens third light source group
Part 3, the array of light spots come in by the detection transmission of Hartmann's plate 30 of the second photoelectric sensor assembly 9, and using its position as subsequent quilt
Survey the reference position of the adjustment of 13 position of eyeglass and focal power calculating；Third light source assembly 3 is closed, second light source component 2 is opened, by
First photoelectric sensor assembly 8 detects interference phenomenon, the position d1 of the second reflecting mirror 12 when record interferes phenomenon；Close second
Light source assembly 2 opens third light source assembly 3, and moves into tested eyeglass 13, is come in by the monitoring projection of the second photoelectric sensor assembly 9
Actual spot array, and according to the calculations of offset of the reference position obtained in the position of actual spot array and step (1) this
When eyeglass center, then instruct user to adjust the position of tested eyeglass 13, make tested 13 center of eyeglass and optical path Center
It is overlapped, that is, completes the position adjustment of tested eyeglass 13；It can also be obtained simultaneously according in the position and step (1) of actual spot array
Reference position offset, to calculate the focal power of tested eyeglass 13；Third light source assembly 3 is closed, first light source component is opened
1, the light beam that first light source component 1 exports is focused by the first focus pack 4 in tested eyeglass 13, and on tested eyeglass 13,
Lower surface generates light scattering, is scattered respectively to tested 13 upper and lower surfaces of eyeglass by the first image-forming assembly 6 and the second image-forming assembly 7
Light imaging realizes that tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude measures, and tested 13 upper and lower surfaces of eyeglass scattering
Hot spot spatial altitude difference is center of lens physical thickness D0；First light source component 1 is closed, opens second light source component 2, again
It adjusts the position of the second reflecting mirror 12 and records in the first photoelectric sensor assembly 8 and occur the second reflecting mirror 12 when interference phenomenon again
Position d2, d2 and d1 difference it is related with center of lens optical thickness；According to center of lens physical thickness D0 and center of lens
Optical thickness relevant parameter d1, d2, to calculate the refractive index of tested eyeglass 13, calculation formula are as follows: n=1+ (d2-d1)/D0.
Lens index detection device of the present invention is to be generated by detection focus on light beam in tested 13 upper and lower surfaces of eyeglass
Scatter hot spot spatial altitude difference and interference phenomenon come obtain calculate refractive index relevant parameter, without making prism, without
The related angle of prism is detected, more convenient operation, and shorten detection cycle, on-line quick detection may be implemented；
Without making prism, optical element to be measured would not be destroyed, therefore is also very applicable for the detection of final lens product；And it scatters
The spatial altitude difference of hot spot and the detection of interference phenomenon, are also applied for the irregular face type eyeglass such as aspherical lens, cylinder eyeglass；
In addition two groups of light source assemblies are respectively set and cooperate Hartmann's plate 30 come correct eyeglass to be measured center whether with optical path Center pair
Standard, and the drift condition of array of light spots that is detected according to Hartmann's plate 30 detect focal power.
Embodiment 8:
A kind of lens index detection method, this method are based on the lens index detection device in embodiment 7, it is wrapped
Include following steps:
(1) before the immigration of tested eyeglass 13, first light source component 1 and second light source component 2 are closed, opens third light source
Component 3, the array of light spots come in by the detection transmission of Hartmann's plate 30 of the second photoelectric sensor assembly 9, and using its position as subsequent
The reference position that tested 13 position of eyeglass adjustment and focal power calculate；
(3) third light source assembly 3 is closed, second light source component 2 is opened, it is existing by the detection interference of the first photoelectric sensor assembly 8
As the position d1 of the second reflecting mirror 12 when record interferes phenomenon；
(4) second light source component 2 is closed, third light source assembly 3 is opened, and moves into tested eyeglass 13, is visited by the second photoelectricity
The actual spot array that the monitoring projection of component 9 is come in is surveyed, and according to the ginseng obtained in the position of actual spot array and step (1)
The center for examining the calculations of offset of position eyeglass at this time, then instructs user to adjust the position of tested eyeglass 13, makes measured lens
13 center of piece is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass 13；It simultaneously can also be according to actual spot array
The offset of the reference position obtained in position and step (1), to calculate the focal power of tested eyeglass 13；
(5) third light source assembly 3 is closed, opens first light source component 1, the light beam that first light source component 1 exports is by first
Focus pack 4 focuses at tested eyeglass 13, and generates light scattering in tested 13 upper and lower surfaces of eyeglass, by the first image-forming assembly 6
With the second image-forming assembly 7 respectively to the scattering light imaging of tested 13 upper and lower surfaces of eyeglass, realize that tested 13 upper and lower surfaces of eyeglass dissipate
The measurement of hot spot spatial altitude is penetrated, and tested 13 upper and lower surfaces of eyeglass scattering hot spot spatial altitude difference is that center of lens physics is thick
Spend D0；
(6) first light source component 1 is closed, second light source component 2 is opened, readjusts the position of the second reflecting mirror 12 and note
Record the difference and mirror for occurring position d2, d2 and the d1 of the second reflecting mirror 12 when interference phenomenon in the first photoelectric sensor assembly 8 again
Piece central optical thickness is related；
(7) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate measured lens
The refractive index of piece 13, calculation formula are as follows: n=1+ (d2-d1)/D0.
Claims (23)
1. a kind of lens index detection device, it is characterised in that: including light source module, center of lens physical thickness detection module
With center of lens optical thickness detection module, the light source module include for export the first light source component (1) of collimated light beam,
First focus pack (4), the center of lens physical thickness detection module include the first image-forming assembly (6) and the second image-forming assembly
(7), the center of lens optical thickness detection module include the first photoelectric sensor assembly (8), the second photoelectric sensor assembly (9),
The first reflecting mirror (11), moveable second reflecting mirror (12) that spectrum groupware (10), part are reflected, second photodetection
Component (9), the first reflecting mirror (11), spectrum groupware (10), the first focus pack (4) and first light source component (1) are along the first light
Axis direction (A) is set gradually from front to back, and moveable second reflecting mirror (12) is arranged in the side of spectrum groupware (10),
First photoelectric sensor assembly (8) is arranged in the other side of spectrum groupware (10), the focal plane position of first focus pack (4)
For placing tested eyeglass (13) between spectrum groupware (10) and the first reflecting mirror (11), first image-forming assembly (6) and
Second image-forming assembly (7) is separately positioned on above and below tested eyeglass (13), and the first light source component (1) is along the first light
The collimated light beam of axis direction (A) transmission focuses at tested eyeglass (13) via the first focus pack (4), while tested eyeglass
(13) upper and lower surfaces generate scattering hot spot and are detected by the first image-forming assembly (6) and the second image-forming assembly (7), first light
Light beam after source component (1) focuses also is partially transmitted in the second photoelectric sensor assembly (9) through the first reflecting mirror (11), and described the
One light source assembly (1) is also divided into two bundles through spectrum groupware (10) along the light beam that primary optic axis direction (A) is transmitted, a branch of to project
The backtracking on two-mirror (12) and by the second reflecting mirror (12) reflection, further leads to and is transmitted to the by spectrum groupware (10)
In one photoelectric sensor assembly (8), another beam is projected on the first reflecting mirror (11) and is reflected and former road by the first reflecting mirror (11)
It returns, is also reflected into the first photoelectric sensor assembly (8) via spectrum groupware (10), the light beam that two beams return enters the first light
For detecting interference phenomenon in electric probe assembly (8).
2. lens index detection device according to claim 1, it is characterised in that: the light of first reflecting mirror (11)
Reflectivity is greater than light transmission rate, is additionally provided with the second focusing between first reflecting mirror (11) and the second photoelectric sensor assembly (9)
The light beam that component (5) is used to converge first light source component (1) transmitted through the first reflecting mirror (11), the light reflectivity and light transmission
The light beam that rate is issued both for first light source component (1).
3. lens index detection device according to claim 1, it is characterised in that: first light source component (1) packet
One first monochromatic LED testing light source (15) is included, the front of the first monochromatic LED testing light source (15) is equipped with one first loophole
(17), the front of first loophole (17) is equipped with one first collimation lens (19), the first monochromatic LED testing light source
(15) it is arranged in the rear focus of the first collimation lens (19), for the first monochromatic LED testing light source (15) is saturating through first
The light beam that unthreaded hole (17) issues projects on the first focus pack (4) via collimated light beam is become after the first collimation lens (19).
4. lens index detection device according to claim 1, it is characterised in that: the spectrum groupware (10) includes one
Semi-transparent semi-reflecting the first light splitting piece (21), first focus pack (4) include a condenser lens (25), first light splitting piece
(21) center, the center of condenser lens (25), the center of the first collimation lens (19), the center of the first loophole (17) and
The center of one monochromatic LED testing light source (15) is respectively positioned on primary optic axis direction (A), the center of second reflecting mirror (12),
The center of first light splitting piece (21) and the center of the first photoelectric sensor assembly (8) are respectively positioned on perpendicular with primary optic axis direction (A)
The second optical axis direction (B) on, when the second reflecting mirror (12) are located at the left side of the first light splitting piece (21), first light splitting piece
(21) angle of side and the second optical axis direction (B) is 45 °, when the second reflecting mirror (12) are located at the right side of the first light splitting piece (21)
When side, the side of first light splitting piece (21) and the angle of the second optical axis direction (B) are 135 °.
5. lens index detection device according to claim 1, it is characterised in that: first image-forming assembly (6) and
Second image-forming assembly (7) is a band tiltedly as the camera (27) of camera lens (26), described oblique as the optical axis direction of camera lens (26) is opposite
The folder of the imager chip plane of the angle in primary optic axis direction (A) camera (27) opposite with the oblique picture optical axis direction of camera lens (26)
Angle meets the image conjugate relation of imaging lens inclination imaging.
6. a kind of lens index detection device, it is characterised in that: including light source module, center of lens physical thickness detection module
With center of lens optical thickness detection module, the light source module include for export the first light source component (1) of collimated light beam,
Removable the first focus pack (4), the center of lens physical thickness detection module include the first image-forming assembly (6) and second
Image-forming assembly (7), the center of lens optical thickness detection module include the first photoelectric sensor assembly (8), the second photodetection
Component (9), spectrum groupware (10), Hartmann's plate (30), moveable second reflecting mirror (12), second photoelectric sensor assembly
(9), Hartmann's plate (30), spectrum groupware (10), removable the first focus pack (4) and first light source component (1) are along first
Optical axis direction (A) is set gradually from front to back, the upper surface of Hartmann's plate (30) be coated with reflectance coating (32) for part instead
Penetrate the light beam of first light source component (1), the lower surface of Hartmann's plate (30) is equipped with array loophole (31) and is used for the
Two photoelectric sensor assemblies (9) project array of light spots, and moveable second reflecting mirror (12) is arranged in spectrum groupware (10)
Side, first photoelectric sensor assembly (8) are arranged in the other side of spectrum groupware (10), first focus pack (4)
Focal plane is located between spectrum groupware (10) and Hartmann's plate (30) for placing tested eyeglass (13), first image-forming assembly
(6) it is separately positioned on above and below tested eyeglass (13) with the second image-forming assembly (7), when removing the first focus pack (4),
The first light source component (1) is along the collimated light beam that primary optic axis direction (A) is transmitted transmitted through projecting after spectrum groupware (10)
On tested eyeglass (13) and Hartmann's plate (30) and enter the second photoelectric sensor assembly (9), and by the second photoelectric sensor assembly (9)
It detects Hartmann's plate (30) and throws incoming array of light spots, after insertion the first focus pack (4), the first light source component (1)
The collimated light beam transmitted along primary optic axis direction (A) is transmitted through spectrum groupware (10) and by the first focus pack (4) in measured lens
It is focused at piece (13), while tested eyeglass (13) upper and lower surfaces generate scattering hot spot and by the first image-forming assembly (6) and the second one-tenth
As component (7) are detected, the light beam that in addition first light source component (1) is transmitted along primary optic axis direction (A) is also through spectrum groupware (10)
It is divided into two bundles, it is a branch of to project on the second reflecting mirror (12) and reflected and backtracking by the second reflecting mirror (12), further lead to
It is transmitted in the first photoelectric sensor assembly (8) by spectrum groupware (10), another beam projects on Hartmann's plate (30) and by Hart
The upper surface of graceful plate (30) is reflected and backtracking, is also reflected into the first photoelectric sensor assembly (8) via spectrum groupware (10),
The light beam that two beams return enters in the first photoelectric sensor assembly (8) for detecting interference phenomenon.
7. lens index detection device according to claim 6, it is characterised in that: first light source component (1) packet
One first monochromatic LED testing light source (15) is included, the front of the first monochromatic LED testing light source (15) is equipped with one first loophole
(17), the front of first loophole (17) is equipped with one first collimation lens (19), the first monochromatic LED testing light source
(15) it is arranged in the rear focus of the first collimation lens (19), for the first monochromatic LED testing light source (15) is saturating through first
The light beam that unthreaded hole (17) issues projects on the first focus pack (4) via collimated light beam is become after the first collimation lens (19).
8. lens index detection device according to claim 6, it is characterised in that: the spectrum groupware (10) includes one
Semi-transparent semi-reflecting the first light splitting piece (21), first focus pack (4) include a condenser lens (25), first light splitting piece
(21) center, the center of condenser lens (25), the center of the first collimation lens (19), the center of the first loophole (17) and
The center of one monochromatic LED testing light source (15) is respectively positioned on primary optic axis direction (A), the center of second reflecting mirror (12),
The center of first light splitting piece (21) and the center of the first photoelectric sensor assembly (8) are respectively positioned on perpendicular with primary optic axis direction (A)
The second optical axis direction (B) on, when the second reflecting mirror (12) are located at the left side of the first light splitting piece (21), first light splitting piece
(21) angle of side and the second optical axis direction (B) is 45 °, when the second reflecting mirror (12) are located at the right side of the first light splitting piece (21)
When side, the side of first light splitting piece (21) and the angle of the second optical axis direction (B) are 135 °.
9. a kind of lens index detection device, it is characterised in that: including light source module, center of lens physical thickness detection module
With center of lens optical thickness detection module, the light source module includes the first light source component (1) for exporting collimated light beam
With second light source component (2), the first focus pack (4) and the first light-integrating subassembly (14), the center of lens physical thickness detection
Module includes the first image-forming assembly (6) and the second image-forming assembly (7), and the center of lens optical thickness detection module includes first
Photoelectric sensor assembly (8), the second photoelectric sensor assembly (9), spectrum groupware (10), Hartmann's plate (30), moveable second are instead
Penetrate mirror (12), second photoelectric sensor assembly (9), Hartmann's plate (30), spectrum groupware (10), the first light-integrating subassembly (14) and
Second light source component (2) is set gradually from front to back along primary optic axis direction (A), and the first light source component (1) setting is the
The side of one light-integrating subassembly (14), first focus pack (4) are arranged in first light source component (1) and the first light-integrating subassembly
(14) between, the upper surface of Hartmann's plate (30) is coated with reflectance coating (32) for partially reflecting first light source component (1)
Light beam, the lower surface of Hartmann's plate (30) are equipped with array loophole (31) and are used to throw to the second photoelectric sensor assembly (9)
Array of light spots is penetrated, in the side of spectrum groupware (10), first photoelectricity is visited for moveable second reflecting mirror (12) setting
It surveys component (8) to be arranged in the other side of spectrum groupware (10), the focal plane of first focus pack (4) is located at spectrum groupware (10)
For placing tested eyeglass (13) between Hartmann's plate (30), first image-forming assembly (6) and the second image-forming assembly (7) point
She Zhi not be above and below tested eyeglass (13), the light beam of first light source component (1) output is through the first light-integrating subassembly
(14) it transmits after reflecting along primary optic axis direction (A), and is focused by the first focus pack (4) in tested eyeglass (13), simultaneously
Tested eyeglass (13) upper and lower surfaces generate scattering hot spot and are detected by the first image-forming assembly (6) and the second image-forming assembly (7), together
When first light source component (1) be also divided into two bundles through spectrum groupware (10) along the light beam that primary optic axis direction (A) is transmitted, a branch of projection
It is reflected and backtracking on to the second reflecting mirror (12) and by the second reflecting mirror (12), further leads to and transmitted by spectrum groupware (10)
To in the first photoelectric sensor assembly (8), another beam projects on Hartmann's plate (30) and anti-by the upper surface of Hartmann's plate (30)
It penetrates and backtracking, is also reflected into the first photoelectric sensor assembly (8) via spectrum groupware (10), the light beam that two beams return enters
To in the first photoelectric sensor assembly (8) for detecting interference phenomenon, the second light source component (2) is along primary optic axis direction (A)
The collimated light beam of transmission is transmitted through the first light-integrating subassembly (14), spectrum groupware (10), tested eyeglass (13) and Hartmann's plate (30)
It is transmitted in the second photoelectric sensor assembly (9) after upper, and was projected by the second photoelectric sensor assembly (9) detection Hartmann's plate (30)
The array of light spots come.
10. lens index detection device according to claim 9, it is characterised in that: first light source component (1) packet
One first monochromatic LED testing light source (15) is included, the front of the first monochromatic LED testing light source (15) is equipped with one first loophole
(17), the front of first loophole (17) is equipped with one first collimation lens (19), the first monochromatic LED testing light source
(15) it is arranged in the rear focus of the first collimation lens (19), for the first monochromatic LED testing light source (15) is saturating through first
The light beam that unthreaded hole (17) issues projects on the first focus pack (4) via collimated light beam is become after the first collimation lens (19).
11. lens index detection device according to claim 9, it is characterised in that: second light source component (2) packet
One second monochromatic LED testing light source (16) is included, the front of the second monochromatic LED testing light source (16) is equipped with one second loophole
(18), the front of second loophole (18) is equipped with one second collimation lens (20), the second monochromatic LED testing light source
(16) it is arranged in the rear focus of the second collimation lens (20), for the second monochromatic LED testing light source (16) is saturating through second
The light beam that unthreaded hole (18) issues is via becoming collimated light beam after the second collimation lens (20).
12. lens index detection device according to claim 9, it is characterised in that: the spectrum groupware (10) includes
One semi-transparent semi-reflecting the first light splitting piece (21), the center of second reflecting mirror (12), the center of the first light splitting piece (21) and
The center of one photoelectric sensor assembly (8) is respectively positioned on the second optical axis direction (B) perpendicular with primary optic axis direction (A), when
When two-mirror (12) is located at the left side of the first light splitting piece (21), the side of first light splitting piece (21) and the second optical axis direction
(B) angle is 45 °, when the second reflecting mirror (12) are located at the right side of the first light splitting piece (21), first light splitting piece (21)
Side and the angle of the second optical axis direction (B) be 135 °.
13. lens index detection device according to claim 9, it is characterised in that: first light-integrating subassembly (14)
Including semi-transparent semi-reflecting second light splitting piece (22), first focus pack (4) includes a condenser lens (25), and described first
The center of monochromatic LED testing light source (15), the center of the first loophole (17), the center of the first collimation lens (19), focusing are saturating
The center of mirror (25) and the center of the second light splitting piece (22) are respectively positioned on the third optical axis direction perpendicular with primary optic axis direction (A)
(C) on, the center of the second monochromatic LED testing light source (16), the center of the second loophole (18), the second collimation lens (20)
Center and the center of the second light splitting piece (22) be respectively positioned on primary optic axis direction (A), when the first monochromatic LED testing light source (15)
When positioned at the left side of the second light splitting piece (22), the side of second light splitting piece (22) and the angle of third optical axis direction (C) are
135 °, when the first monochromatic LED testing light source (15) is located at the right side of the second light splitting piece (22), second light splitting piece (22)
The angle of side and third optical axis direction (C) are 45 °.
14. a kind of lens index detection device, it is characterised in that: detect mould including light source module, center of lens physical thickness
Block and center of lens optical thickness detection module, the light source module include the first light source component for exporting collimated light beam
(1) and second light source component (2), third light source assembly (3), the first light-integrating subassembly (14), the second light-integrating subassembly (29) and
One focus pack (4), the center of lens physical thickness detection module include the first image-forming assembly (6) and the second image-forming assembly
(7), the center of lens optical thickness detection module include the first photoelectric sensor assembly (8), the second photoelectric sensor assembly (9),
Spectrum groupware (10), Hartmann's plate (30), moveable second reflecting mirror (12), second photoelectric sensor assembly (9), Hart
Graceful plate (30), spectrum groupware (10), the first focus pack (4), the first light-integrating subassembly (14), first light source component (1) are along first
Optical axis direction (A) is set gradually from front to back, and second reflecting mirror (12) setting is in the side of spectrum groupware (10), and described the
One photoelectric sensor assembly (8) setting is located at light splitting in the other side of spectrum groupware (10), the focal plane of first focus pack (4)
For placing tested eyeglass (13) between component (10) and Hartmann's plate (30), first image-forming assembly (6) and the second imaging
Component (7) is separately positioned on above and below tested eyeglass (13), and the upper surface of Hartmann's plate (30) is coated with reflectance coating
(32) for partially reflecting the light beam of second light source component (2), the lower surface of Hartmann's plate (30) is equipped with array light transmission
Hole (31)；The collimated light beam of the first light source component (1) output transmitted through after the first light-integrating subassembly (14) still along primary optic axis
Direction (A) transmission, and focused by the first focus pack (4) in tested eyeglass (13), while tested eyeglass (13) upper and lower surfaces
It generates scattering hot spot and is detected by the first image-forming assembly (6) and the second image-forming assembly (7)；The third light source assembly (3) is located at
In the rear focus of first focus pack (4), the light beam of third light source assembly (3) output is successively through the second light-integrating subassembly (29)
Collimated light beam is focused to through the first focus pack (4) after reflecting with the first light-integrating subassembly (14) and is passed along primary optic axis direction (A)
Defeated, the collimated light beam that the third light source assembly (3) is transmitted along primary optic axis direction (A) is transmitted through tested eyeglass (13) and Hart
After graceful plate (30), the array of light spots transmitted through Hartmann's plate (30) is detected by the second photodetection detection components；Second light
Source component (2) output collimated light beam transmitted through the second light-integrating subassembly (29) and through the first light-integrating subassembly (14) reflection after along first
Optical axis direction (A) transmission, then be divided into two bundles through spectrum groupware (10), it is a branch of to project on the second reflecting mirror (12) and by second instead
It penetrates mirror (12) to reflect and backtracking, further leads to and be transmitted in the first photoelectric sensor assembly (8) by spectrum groupware (10), it is another
Beam is projected on Hartmann's plate (30) and is reflected and backtracking by Hartmann's plate (30) upper surface, also via spectrum groupware (10)
It is reflected into the first photoelectric sensor assembly (8), the light beam that two beams return enters in the first photoelectric sensor assembly (8) for detecting
Interference phenomenon.
15. lens index detection device according to claim 14, it is characterised in that: the spectrum groupware (10) includes
One semi-transparent semi-reflecting the first light splitting piece (21), the center of first photoelectric sensor assembly (8), the first light splitting piece (21) center
It is respectively positioned on the center of the second reflecting mirror (12) on the second optical axis direction (B) perpendicular with primary optic axis direction (A), described
When two-mirror (12) is located at the right side of the first light splitting piece (21), the side of first light splitting piece (21) and the second optical axis direction
(B) angle is 135 °, when second reflecting mirror (12) is located at the left side of the first light splitting piece (21), first light splitting piece
(21) angle of side and the second optical axis direction (B) is 45 °.
16. lens index detection device according to claim 14, it is characterised in that: first light-integrating subassembly (14)
Including semi-transparent semi-reflecting second light splitting piece (22), the second light source component (2) and third light source assembly (3) are arranged second
The same side of light splitting piece (22), second light-integrating subassembly (29) include a setting in the second light splitting piece (22) and second light source group
Semi-transparent semi-reflecting third light splitting piece (23) between part (2)；The first light source component (1) is arranged in the second light splitting piece (22)
Rear, and its output collimated light beam along primary optic axis direction (A) project on the second light splitting piece (22) after transmit；It is described
The collimated light beam of second light source component (2) output is transmitted along the third optical axis direction (C) perpendicular with primary optic axis direction (A),
Then it is transmitted after projecting on third light splitting piece (23), then along primary optic axis direction after the second light splitting piece (22) reflection
(A) it transmits；The light beam of third light source assembly (3) output is along fourth optical axis direction perpendicular with third optical axis direction (C)
(D) it transmits, is then successively transmitted after third light splitting piece (23) and the second light splitting piece (22) reflection along primary optic axis direction (A)；
When second light splitting piece (22) and third light splitting piece (23) are in 45 ° with third optical axis direction (C), the second light source component
(2) positioned at the second light splitting piece (22) right side and third light source assembly (3) be located at the top of third optical axis direction (C), described the
When two light splitting pieces (22) and third light splitting piece (23) are in 135 ° with the second optical axis direction (B), second light source component (2) position
In the second light splitting piece (22) left side and third light source assembly (3) be located at the top of third optical axis direction (C), second light splitting
Piece (22) and third optical axis direction (C) be in 45 ° and when third light splitting piece (23) and third optical axis direction (C) are in 135 °, and described the
Two light source assemblies (2) are located at the right side of the second light splitting piece (22) and third light source assembly (3) is located under third optical axis direction (C)
Side, second light splitting piece (22) and third optical axis direction (C) are in 135 ° and third light splitting piece (23) and third optical axis direction (C)
When in 45 °, the second light source component (2) is located at the left side of the second light splitting piece (22) and third light source assembly (3) is located at third
The lower section of optical axis direction (C).
17. lens index detection device according to claim 14, it is characterised in that: the first light source component (1)
Including semiconductor laser, the semiconductor laser is arranged at the rear of the second light splitting piece (22), and the collimation of its output
Light beam along primary optic axis direction (A) project on the second light splitting piece (22) after transmit.
18. lens index detection device according to claim 14, it is characterised in that: the second light source component (2)
Including one first monochromatic LED testing light source (15), the front of the first monochromatic LED testing light source (15) is equipped with one first light transmission
The front in hole (17), first loophole (17) is equipped with one first collimation lens (19), the first monochromatic LED testing light source
(15) it is arranged in the rear focus of the first collimation lens (19), for the first monochromatic LED testing light source (15) is saturating through first
The light beam that unthreaded hole (17) issues is via becoming collimated light beam, the first monochromatic LED testing light source after the first collimation lens (19)
(15) collimated light beam exported is along the third optical axis direction (C) perpendicular with primary optic axis direction (A) transmitted through third light splitting piece
(23), it and after the second light splitting piece (22) reflection along primary optic axis direction (A) transmits；The center of second light splitting piece (22),
The center of third light splitting piece (23), the center of the first collimation lens (19), the center of the first loophole (17) and the first monochromatic LED
The center of testing light source (15) is respectively positioned on the third optical axis direction (C) perpendicular with primary optic axis direction (A).
19. lens index detection device according to claim 14, it is characterised in that: the third light source assembly (3)
Including one second monochromatic LED testing light source (16), the front of the second monochromatic LED testing light source (16) is equipped with one second light transmission
Hole (18), the second monochromatic LED testing light source (16) are arranged in the rear focus of the first focus pack (4), are used for second
The light beam that monochromatic LED testing light source (16) is issued through the second loophole (18) after the first focus pack (4) via becoming collimating
Light beam, the collimated light beam of the second monochromatic LED testing light source (16) output is along the perpendicular with third optical axis direction (C) the 4th
Optical axis direction (D) projects on third light splitting piece (23), and two successively through third light splitting piece (23) and the second light splitting piece (22)
It is transmitted after secondary reflection along primary optic axis direction (A)；The center of the third light splitting piece (23), the second loophole (18) center and
The center of second monochromatic LED testing light source (16) is respectively positioned on fourth optical axis direction (D) perpendicular with third optical axis direction (C)
On.
20. a kind of lens index detection method, it is characterised in that: it the following steps are included:
(1) it before being inserted into tested eyeglass (13), opens first light source component (1), monitors the first light by the second photoelectric sensor assembly (9)
The spot center position of the light beam of source component (1), and as reference position；
(2) interference phenomenon is detected by the first photoelectric sensor assembly (8), and records and interferes in the first photoelectric sensor assembly (8)
The position d1 of second reflecting mirror (12) when phenomenon；
(3) it is inserted into tested eyeglass (13), by the reality of the light beam of the second photoelectric sensor assembly (9) monitoring first light source component (1)
Spot center position, and compared with reference position obtained in step (1), instruct user to adjust according to the deviation of the two
The position of tested eyeglass (13), when the actual facula center of the light beam of first light source component (1) is overlapped with reference position,
Tested eyeglass (13) center is overlapped with optical path Center, completes the position adjustment of tested eyeglass (13)；
(4) by the first image-forming assembly (6) and the second image-forming assembly (7) respectively to tested eyeglass (13) upper and lower surfaces scattering light at
Picture realizes tested eyeglass (13) upper and lower surfaces scattering hot spot spatial altitude measurement, and is tested the scattering of eyeglass (13) upper and lower surfaces
Hot spot spatial altitude difference is center of lens physical thickness D0；
(5) it readjusts the position of the second reflecting mirror (12) and records in the first photoelectric sensor assembly (8) and occur interference again now
As when the second reflecting mirror (12) position d2；
(6) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate tested eyeglass
(13) refractive index, calculation formula are as follows: n=1+ (d2-d1)/D0.
21. a kind of lens index detection method, it is characterised in that: it the following steps are included:
(1) it before tested eyeglass (13) and the first focus pack (4) move into, opens first light source component (1), by the second photoelectricity
Probe assembly (9) detects Hartmann's plate (30) and throws incoming array of light spots, and using its position as subsequent tested eyeglass (13)
The reference position that position adjustment and focal power calculate；
(2) the first focus pack (4) are moved into, detects interference phenomenon by the first photoelectric sensor assembly (8), and record and interfere now
As when the second reflecting mirror (12) position d1；
(3) the first focus pack (4) are removed, and move into tested eyeglass (13), by the second photoelectric sensor assembly (9) monitoring project into
The actual spot array come, and according to the calculations of offset of the reference position obtained in the position of actual spot array and step (1)
Then the center of eyeglass at this time instructs user to adjust the position of tested eyeglass (13), make tested eyeglass (13) center and light
Lu Zhizheng is overlapped, that is, completes the position adjustment of tested eyeglass (13)；It simultaneously can also position according to actual spot array and step
(1) offset of the reference position obtained in, to calculate the focal power of tested eyeglass (13)；
(4) it moves into again the first focus pack (4), readjust the position of the second reflecting mirror (12) and records the first photodetection group
Occurs the position d2 of the second reflecting mirror (12) when interference phenomenon in part (8) again, while by the first image-forming assembly (6) and the second one-tenth
As component (7) are respectively to the scattering light imaging of tested eyeglass (13) upper and lower surfaces, tested eyeglass (13) the upper and lower surfaces scattering of realization
The measurement of hot spot spatial altitude, and tested eyeglass (13) upper and lower surfaces scattering hot spot spatial altitude difference is that center of lens physics is thick
Spend D0；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate tested eyeglass
(13) refractive index, calculation formula are as follows: n=1+ (d2-d1)/D0.
22. a kind of lens index detection method, it is characterised in that: it the following steps are included:
(1) it before tested eyeglass (13) moves into, closes first light source component (1), opens second light source component (2), by second
Photoelectric sensor assembly (9) detects Hartmann's plate (30) and throws incoming array of light spots, and using its position as subsequent tested eyeglass
(13) reference position that position adjustment and focal power calculate；
(2) second light source component (2) are closed, opened first light source component (1), it is dry by detection in the first photoelectric sensor assembly (8)
Phenomenon is related to, the position d1 of the second reflecting mirror (12) when record interferes phenomenon；
(3) first light source component (1) is closed, opened second light source component (2), and move into tested eyeglass (13), by the second photoelectricity
The actual spot array that probe assembly (9) monitoring projection is come in, and obtained according in the position of actual spot array and step (1)
Reference position calculations of offset eyeglass at this time center, then instruct user to adjust the position of tested eyeglass (13), make
Tested eyeglass (13) center is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass (13)；It simultaneously can also be according to reality
The offset of the reference position obtained in the position and step (1) of array of light spots, to calculate the focal power of tested eyeglass (13)；
(4) second light source component (2) are closed, opened first light source component (1), readjust the position of the second reflecting mirror (12) simultaneously
Record the difference for occurring position d2, d2 and the d1 of the second reflecting mirror (12) when interference phenomenon in the first photoelectric sensor assembly (8) again
Value is related to center of lens optical thickness, while the light beam of first light source component (1) output can also be by the first focus pack (4) In
It is focused at tested eyeglass (13), and generates light in tested eyeglass (13) upper and lower surfaces and scatter, by the first image-forming assembly (6) and the
Two image-forming assemblies (7) to the scattering light imaging of tested eyeglass (13) upper and lower surfaces, realize tested eyeglass (13) upper and lower surfaces respectively
The measurement of hot spot spatial altitude is scattered, and tested eyeglass (13) upper and lower surfaces scattering hot spot spatial altitude difference is center of lens object
Manage thickness D0；
(5) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate tested eyeglass
(13) refractive index, calculation formula are as follows: n=1+ (d2-d1)/D0.
23. a kind of lens index detection method, it is characterised in that: it the following steps are included:
(1) before tested eyeglass (13) moves into, first light source component (1) and second light source component (2) are closed, opens third light
Source component (3), the array of light spots come in by the second photoelectric sensor assembly (9) detection Hartmann's plate (30) transmission, and by its position
The reference position calculated as subsequent tested eyeglass (13) position adjustment and focal power；
(3) third light source assembly (3) are closed, opened second light source component (2), detected and interfered by the first photoelectric sensor assembly (8)
Phenomenon, the position d1 of the second reflecting mirror (12) when record interferes phenomenon；
(4) second light source component (2) are closed, opened third light source assembly (3), and move into tested eyeglass (13), by the second photoelectricity
The actual spot array that probe assembly (9) monitoring projection is come in, and obtained according in the position of actual spot array and step (1)
Reference position calculations of offset eyeglass at this time center, then instruct user to adjust the position of tested eyeglass (13), make
Tested eyeglass (13) center is overlapped with optical path Center, that is, completes the position adjustment of tested eyeglass (13)；It simultaneously can also be according to reality
The offset of the reference position obtained in the position and step (1) of array of light spots, to calculate the focal power of tested eyeglass (13)；
(5) third light source assembly (3) are closed, opened first light source component (1), the light beam of first light source component (1) output is by the
One focus pack (4) focuses at tested eyeglass (13), and generates light scattering in tested eyeglass (13) upper and lower surfaces, by first
Image-forming assembly (6) and the second image-forming assembly (7) realize measured lens respectively to the scattering light imaging of tested eyeglass (13) upper and lower surfaces
Piece (13) upper and lower surfaces scatter the measurement of hot spot spatial altitude, and tested eyeglass (13) upper and lower surfaces scattering hot spot spatial altitude is poor
As center of lens physical thickness D0；
(6) first light source component (1) is closed, opened second light source component (2), readjust the position of the second reflecting mirror (12) simultaneously
Record the difference for occurring position d2, d2 and the d1 of the second reflecting mirror (12) when interference phenomenon in the first photoelectric sensor assembly (8) again
It is worth related to center of lens optical thickness；
(7) according to center of lens physical thickness D0 and center of lens optical thickness relevant parameter d1, d2, to calculate tested eyeglass
(13) refractive index, calculation formula are as follows: n=1+ (d2-d1)/D0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851360.5A CN110514411B (en) | 2019-09-10 | 2019-09-10 | Lens refractive index detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851360.5A CN110514411B (en) | 2019-09-10 | 2019-09-10 | Lens refractive index detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110514411A true CN110514411A (en) | 2019-11-29 |
| CN110514411B CN110514411B (en) | 2024-02-02 |
Family
ID=68631819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910851360.5A Active CN110514411B (en) | 2019-09-10 | 2019-09-10 | Lens refractive index detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110514411B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280007A (en) * | 2021-11-24 | 2022-04-05 | 中国科学院福建物质结构研究所 | Device and method for testing refractive index of optical material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469261A (en) * | 1994-04-05 | 1995-11-21 | Carl Zeiss, Inc. | Measurement of lens characteristics |
| CN1293361A (en) * | 2000-11-30 | 2001-05-02 | 中国科学院上海光学精密机械研究所 | Semiconductor laser interferometric device for real-time measurement of thickness and refractivity |
| US20170095146A1 (en) * | 2015-10-01 | 2017-04-06 | Joshua Noel Hogan | Combined optical thickness and physical thickness measurement |
| CN107462405A (en) * | 2017-09-27 | 2017-12-12 | 北京理工大学 | Broadband differential confocal Infrared Lens element refractive index measurement method and device |
| CN211013454U (en) * | 2019-09-10 | 2020-07-14 | 宁波法里奥光学科技发展有限公司 | Lens refractive index detection device |
-
2019
- 2019-09-10 CN CN201910851360.5A patent/CN110514411B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469261A (en) * | 1994-04-05 | 1995-11-21 | Carl Zeiss, Inc. | Measurement of lens characteristics |
| CN1293361A (en) * | 2000-11-30 | 2001-05-02 | 中国科学院上海光学精密机械研究所 | Semiconductor laser interferometric device for real-time measurement of thickness and refractivity |
| US20170095146A1 (en) * | 2015-10-01 | 2017-04-06 | Joshua Noel Hogan | Combined optical thickness and physical thickness measurement |
| CN107462405A (en) * | 2017-09-27 | 2017-12-12 | 北京理工大学 | Broadband differential confocal Infrared Lens element refractive index measurement method and device |
| CN211013454U (en) * | 2019-09-10 | 2020-07-14 | 宁波法里奥光学科技发展有限公司 | Lens refractive index detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280007A (en) * | 2021-11-24 | 2022-04-05 | 中国科学院福建物质结构研究所 | Device and method for testing refractive index of optical material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110514411B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10969299B2 (en) | Lens refractive index detection device and method | |
| CN201233362Y (en) | Multi optical spectrum imaging device for detecting fruit quality | |
| EP2181317B1 (en) | Broad-range spectrometer | |
| TW201205114A (en) | Linear chromatic confocal microscope system | |
| KR100487755B1 (en) | Method for measuring refractive power and apparatus therefor | |
| CN110260799A (en) | A kind of Spectral Confocal displacement sensor | |
| CN106725287B (en) | A kind of non-cpntact measurement device and method of ocular biometric parameters | |
| CN211013454U (en) | Lens refractive index detection device | |
| US4984883A (en) | Translation insensitive keratometer using moire deflectometry | |
| CN108562547A (en) | Laser crystal thermal stress double refractive inde measuring device and its method | |
| CN104825148A (en) | Device and method for measuring blood flow of blood vessels | |
| US20220187161A1 (en) | Deflectometry Measurement System | |
| CN110186653A (en) | The light axis consistency of non-imaging system is calibrated and is split as fixed-focus debugging device and method | |
| JP2021043181A (en) | Lens refractive index measuring device and method for measurement by the same | |
| CN110514142A (en) | A kind of surface shape detection apparatus and surface testing method | |
| JPH07509315A (en) | Spectrometer for Renzometer | |
| CN109253707A (en) | Hundred microns of range transmission-type interference testing devices | |
| JPS61280548A (en) | Apparatus for analyzing particle | |
| JP2001091223A (en) | Spacing measuring method and device | |
| CN209147932U (en) | A kind of laser imaging range-measurement system | |
| JPH02161332A (en) | Device and method for measuring radius of curvature | |
| CN112556991A (en) | Lens refractive index measuring device and measuring method thereof | |
| CN110514411A (en) | Lens index detection device and method | |
| CN210863101U (en) | Lens refractive index measuring device | |
| JP2000241128A (en) | Plane-to-plane space measuring apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |