CN105549131A - Series verification eyeglasses for checking contact lens geometrical parameter measurement instrument - Google Patents
Series verification eyeglasses for checking contact lens geometrical parameter measurement instrument Download PDFInfo
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- CN105549131A CN105549131A CN201610060310.1A CN201610060310A CN105549131A CN 105549131 A CN105549131 A CN 105549131A CN 201610060310 A CN201610060310 A CN 201610060310A CN 105549131 A CN105549131 A CN 105549131A
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- test lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The present invention relates to series verification eyeglasses for checking a contact lens geometrical parameter measurement instrument, belonging to the field of the test and measurement technology and apparatuses. The series verification eyeglasses comprise diameter verification eyeglasses, series curvature radius verification eyeglasses and series center thickness verification eyeglasses; the diameter verification eyeglasses are plane lenses and are in a circle shape, and the front surfaces and the back surfaces of the diameter verification eyeglasses are planes; the series curvature radius verification eyeglasses are concave lenses and in a circle shape, and the front surfaces and the back surfaces of the series curvature radius verification eyeglasses are spherical surfaces; and the series center thickness verification eyeglasses are concave lenses and in a circle shape, and the front surfaces and the back surfaces of the series center thickness verification eyeglasses are spherical surfaces. Diameter verification eyeglasses, series curvature radius verification eyeglasses and series center thickness verification eyeglasses with different specifications and being closed to the structure of contact lens products are designed to realize the accurate checking of diameter indication errors, curvature radius indication errors and center thickness indication errors of contact lens geometrical parameter measurement instruments with different principles.
Description
Technical field
The present invention relates to a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, belonging to Measuring and Testing Technologies and Instruments field.
Background technology
On clinical ophthalmology, mainly contain three kinds for the ametropic correcting method of patient: wear the treatment of frame eyeglasses, wearing contact mirror and refractive surgery.Frame eyeglasses is worn in most patient's selection or contact lense is ametropia to rescue, and reaches the object improving eyesight.Due to contact lense have attractive in appearance, the visual field large, true depending on thing, wear the advantages such as comfortable, be subject to the favor of more and more consumer, especially the liking of young people and particular job person.Contact lense is commonly called as contact lenses, is directly attached to eye cornea surface and uses.The performance parameter evaluating contact lense product quality has a lot, has both comprised optical parametric and has also comprised geometric parameter, and wherein the geometric parameter such as diameter, radius-of-curvature and center thickness be directly connected to contact lense wear effect and eyesight safety.Contact lense geometric parameter measurement instrument is specifically designed to measure the instrument of all kinds of contact lense diameter, radius-of-curvature and center thickness, and the quality assessment and testing that whether accurate the measurement result provided is directly has influence on contact lense is joined.
Whether accurately examine or check the measurement result that contact lense geometric parameter measurement instrument provides, just need to provide corresponding calibration steps, corresponding Test lenses is used to test to it, therefore developing and design a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument indication error, is evaluate the whether accurate important means of the every geometric parameter measurement of this quasi-instrument.
Contact lense is by its material and form, and be generally divided into contact lens,hard and contact lens,soft, contact lens,hard geometric parameter is generally measured in atmosphere, and contact lens,soft geometric parameter needs to measure in the solution.Contact lense geometric parameter measurement instrument is of a great variety, principle is different, has sciagraphy, rise method, catoptric imaging method, contact thickness measuring method etc., therefore, Test lenses then needs to design for different parameters respectively, to meet the error of indication inspection of dissimilar contact lense geometric parameter measurement instrument.
Summary of the invention
The object of the invention is the problem that cannot verify to solve existing surveying instrument, there is provided a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, this eyeglass can be used for the rigorous examination of the diameter error of indication of contact lense geometric parameter measurement instrument, the radius-of-curvature error of indication and the center thickness error of indication, thus ensure measurement result that instrument provides accurately, reliable.
The object of the invention is to be achieved through the following technical solutions.
For checking a serial Test lenses for contact lense geometric parameter measurement instrument, comprising: serial diameter Test lenses, serial radius-of-curvature Test lenses and serial center thickness Test lenses; Diameter Test lenses is planar lens, and profile is circular, and front surface, rear surface are plane; Radius-of-curvature Test lenses is concavees lens, and profile is circular, and front surface, rear surface are sphere; Center thickness Test lenses is concavees lens, and profile is circular, and front surface, rear surface are sphere.
Described serial diameter Test lenses by having different-diameter specification, the planar lens of identical central thickness forms; Described serial radius-of-curvature Test lenses by have different rear surfaces radius-of-curvature, identical front surface radius-of-curvature, identical central thickness concavees lens form; Described serial center thickness Test lenses by have different center thickness, identical front surface radius-of-curvature, identical rear surface radius-of-curvature concavees lens form.
Described diameter Test lenses, radius-of-curvature Test lenses are identical with the material of center thickness Test lenses, are preferably colouless optical glass.
The all meticulous polishing in forward and backward surface of described diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses, by the isoparametric high-acruracy survey of diameter, radius-of-curvature and center thickness, ensure value accurately and effectively trace to the source.
The haptic lens of the structural design simulation reality of described diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses, can apply in atmosphere, also can apply in the solution, check with the error of indication of satisfied different contact lense geometric parameter measurement instrument.
Beneficial effect
1, of the present invention a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, by design close to the diameter Test lenses with different size of contact lense product structure, radius-of-curvature Test lenses and center thickness Test lenses, achieve the rigorous examination of the diameter error of indication of the contact lense geometric parameter measurement instrument of different principle, the radius-of-curvature error of indication and the center thickness error of indication.
2, of the present invention a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, comprise diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses, by the quality control to all kinds of lens structure parameter, the accurate definite value of the diameter of Test lenses, rear surface radius-of-curvature and center thickness three parameters can be ensured, and realize effectively tracing to the source.This structural design can use in atmosphere, also can use in the solution, has the advantage that structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of diameter Test lenses of the present invention;
Fig. 2 is the schematic diagram of radius-of-curvature Test lenses of the present invention;
Fig. 3 is the schematic diagram of center thickness Test lenses of the present invention.
Wherein, 1-diameter Test lenses, 2-radius-of-curvature Test lenses, 3-center thickness Test lenses, 4-front surface, 5-rear surface.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
Of the present invention a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, comprise diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses.Diameter Test lenses is for checking the diameter error of indication of contact lense geometric parameter measurement instrument, radius-of-curvature Test lenses is for checking the radius-of-curvature error of indication of contact lense geometric parameter measurement instrument, and center thickness Test lenses is for checking the center thickness error of indication of contact lense geometric parameter measurement instrument.
The invention provides a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument, comprising:
Diameter Test lenses, as shown in Figure 1.This diameter Test lenses is planar lens, and profile is circular, and front surface and rear surface are plane, by Φ 10mm, Φ 13mm and Φ 15mm tri-kinds of different-diameters but the identical planar lens of center thickness form.In process, the strict diameter controlling diameter Test lenses, and utilize high-accuracy projector and digital display calliper to measure its diameter, ensures that value accurately and effectively trace to the source.The expanded uncertainty of the diameter criteria value of diameter Test lenses can reach 0.01mm (k=2), meets the error of indication requirement of contact lense diameter measurement instrument ± 0.05mm completely.
Radius-of-curvature Test lenses, as shown in Figure 2.This radius-of-curvature Test lenses is concavees lens, and profile is circular, and front surface and rear surface are sphere, are made up of the concavees lens of R7mm, R8mm and R9mm tri-kinds of different rear surfaces radius-of-curvature.For reducing the processing quantity of sphere model, reduce costs, the front surface radius-of-curvature of the radius-of-curvature Test lenses of three kinds of different sizes is all identical, and center thickness is also identical.In process, strictly control rear surface spherical surface shape based on principle of interference, utilize high precision spherometer to measure surface curvature radius thereafter, ensure that value accurately and effectively trace to the source.The expanded uncertainty of the radius-of-curvature standard value of radius-of-curvature Test lenses can reach 0.01mm (k=2), meets the error of indication requirement of contact lense radius of curvature measurement instrument ± 0.05mm completely.
Center thickness Test lenses, as shown in Figure 3.This center thickness Test lenses is concavees lens, and profile is circular, and front surface and rear surface are sphere, are made up of the concavees lens of 0.20mm, 0.25mm and 0.30mm tri-kinds of different center thicknesses.For reducing the processing quantity of sphere model, the front surface radius-of-curvature of the Test lenses of three kinds of different center thicknesses is all identical, and rear surface radius-of-curvature is also identical.In process, the center thickness of strict control center thickness Test lenses, and utilize high-accuracy thickness gauge to measure its center thickness, ensures that value accurately and effectively trace to the source.The expanded uncertainty of the center thickness standard value of center thickness Test lenses can reach 0.002mm (k=2), meets the error of indication requirement of contact lense center thickness surveying instrument ± 0.005mm completely.
The material of described diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses is colourless crown optical glass, is conducive to like this keeping the stable of value and reproduction.
Described diameter Test lenses, radius-of-curvature Test lenses and center thickness Test lenses, can apply in atmosphere, also can apply in the solution, can meet the error of indication inspection of different contact lense geometric parameter measurement instrument.
Provided by the invention for checking the serial Test lenses of contact lense geometric parameter measurement instrument, can be used for checking the diameter error of indication of this quasi-instrument, the radius-of-curvature error of indication and the center thickness error of indication.
Specific works process is as follows: when testing to the diameter error of indication of contact lense geometric parameter measurement instrument, diameter Test lenses is taken out, and put into the diameter measurement unit of instrument, measure according to the diameter of operation instructions to diameter Test lenses of instrument, the diameter criteria value of the measured value obtained and diameter Test lenses is compared, the diameter error of indication of this instrument can be obtained, according to the method, the diameter Test lenses of three kinds of different sizes is measured respectively, obtains the corresponding diameter error of indication; When testing to the radius-of-curvature error of indication of contact lense geometric parameter measurement instrument, radius-of-curvature Test lenses is taken out, and put into the radius of curvature measurement unit of instrument, measure according to the rear surface radius-of-curvature of operation instructions to radius-of-curvature Test lenses of instrument, the radius-of-curvature standard value of measured value and radius-of-curvature Test lenses is compared, the radius-of-curvature error of indication of this instrument can be obtained, according to the method, the radius-of-curvature Test lenses of three kinds of different sizes is measured respectively, obtains the corresponding radius-of-curvature error of indication; When testing to the center thickness error of indication of contact lense geometric parameter measurement instrument, center thickness Test lenses is taken out, and put into the center thickness measuring unit of instrument, measure according to the center thickness of operation instructions to center thickness Test lenses of instrument, the center thickness standard value of measured value and center thickness Test lenses is compared, the center thickness error of indication of this instrument can be obtained, according to the method, the center thickness Test lenses of three kinds of different sizes is measured respectively, obtains the corresponding center thickness error of indication.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood to limit scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim basis is all protection scope of the present invention.
Claims (6)
1. for checking a serial Test lenses for contact lense geometric parameter measurement instrument, it is characterized in that: be made up of serial diameter Test lenses (1), serial radius-of-curvature Test lenses (2) and serial center thickness Test lenses (3); Described serial diameter Test lenses (1) by having different-diameter specification, the planar lens of identical central thickness forms; Described serial radius-of-curvature Test lenses (2) by have different rear surface (5) radius-of-curvature, identical front surface (4) radius-of-curvature, identical central thickness concavees lens form; Described serial center thickness Test lenses (3) by have different center thickness, identical front surface (4) radius-of-curvature, identical rear surface (5) radius-of-curvature concavees lens form.
2. a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument as claimed in claim 1, it is characterized in that: described diameter Test lenses (1) is planar lens, profile is circular, and front surface (4), rear surface (5) are plane; Described radius-of-curvature Test lenses (2) is concavees lens, and profile is circular, and front surface (4), rear surface (5) are sphere; Described center thickness Test lenses (3) is concavees lens, and profile is circular, and front surface (4), rear surface (5) are sphere.
3. a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument as claimed in claim 1 or 2, it is characterized in that: the material of described diameter Test lenses (1), radius-of-curvature Test lenses (2) and center thickness Test lenses (3) is colouless optical glass.
4. a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument as claimed in claim 3, it is characterized in that: the front surface (4) of described diameter Test lenses (1), radius-of-curvature Test lenses (2) and center thickness Test lenses (3), rear surface (5) all meticulous polishing.
5. a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument as claimed in claim 4, it is characterized in that: described diameter Test lenses (1), radius-of-curvature Test lenses (2) and center thickness Test lenses (3) can be applied in atmosphere, also can apply in the solution, check with the error of indication of satisfied different contact lense geometric parameter measurement instrument.
6. a kind of for checking the serial Test lenses of contact lense geometric parameter measurement instrument as claimed in claim 1 or 2, it is characterized in that: method of calibration is: when testing to the diameter error of indication of contact lense geometric parameter measurement instrument, diameter Test lenses (1) is taken out, and put into the diameter measurement unit of instrument, measure according to the diameter of operation instructions to diameter Test lenses (1) of instrument, the diameter criteria value of the measured value obtained and diameter Test lenses (1) is compared, the diameter error of indication of this instrument can be obtained; When testing to the radius-of-curvature error of indication of contact lense geometric parameter measurement instrument, radius-of-curvature Test lenses (2) is taken out, and put into the radius of curvature measurement unit of instrument, measure according to rear surface (5) radius-of-curvature of operation instructions to radius-of-curvature Test lenses (2) of instrument, the radius-of-curvature standard value of measured value and radius-of-curvature Test lenses (2) is compared, the radius-of-curvature error of indication of this instrument can be obtained; When testing to the center thickness error of indication of contact lense geometric parameter measurement instrument, center thickness Test lenses (3) is taken out, and put into the center thickness measuring unit of instrument, measure according to the center thickness of operation instructions to center thickness Test lenses (3) of instrument, the center thickness standard value of measured value and center thickness Test lenses (3) is compared, the center thickness error of indication of this instrument can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060310.1A CN105549131B (en) | 2016-01-29 | 2016-01-29 | A kind of serial Test lenses for being used to examine contact lense geometric parameter measurement instrument |
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| CN201610060310.1A CN105549131B (en) | 2016-01-29 | 2016-01-29 | A kind of serial Test lenses for being used to examine contact lense geometric parameter measurement instrument |
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| CN105549131A true CN105549131A (en) | 2016-05-04 |
| CN105549131B CN105549131B (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110123488A (en) * | 2019-05-27 | 2019-08-16 | 中国计量科学研究院 | Intraocular lens' diopter Test lenses and valued methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110123488A (en) * | 2019-05-27 | 2019-08-16 | 中国计量科学研究院 | Intraocular lens' diopter Test lenses and valued methods |
| CN110123488B (en) * | 2019-05-27 | 2023-12-29 | 中国计量科学研究院 | Intraocular lens diopter verification lens and value fixing method |
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| CN105549131B (en) | 2017-12-08 |
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