CN212254540U

CN212254540U - Artificial cornea mirror column optical resolution tester

Info

Publication number: CN212254540U
Application number: CN202020368404.7U
Authority: CN
Inventors: 史伟云; 翟舒平; 杨秉尧; 翟嘉洁
Original assignee: Guangdong Jiayue Meishi Biotechnology Co ltd
Current assignee: Guangdong Jiayue Meishi Biotechnology Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-29
Anticipated expiration: 2030-03-20

Abstract

The utility model particularly discloses an artificial corneal mirror column optical resolution tester, which comprises an adjustable support, and also comprises a light source component, a resolution test card component, a collimating mirror component, a mirror column mounting component and a microscope component which are arranged on the adjustable support at intervals in sequence; the adjustable support comprises a bracket, at least one guide rail erected on the bracket and a graduated scale arranged on the bracket and parallel to the guide rail; the light source component comprises a sleeved supporting component arranged on the adjustable support, an LED light source, a condenser lens body and a filter lens body; after being condensed by the condenser body and filtered by the filter body, the light rays of the LED light source sequentially pass through the resolution test card and the collimating lens at an angle, are collimated by the collimating lens and then parallelly and directly pass through the artificial cornea lens column and the objective lens of the microscope. The utility model discloses can be accurate and obtain the optical resolution of artificial cornea mirror post fast, convenient debugging, operation and carry out the mass detection to artificial cornea mirror post.

Description

Artificial cornea mirror column optical resolution tester

Technical Field

The utility model relates to a biomedical engineering and optical instrument technical field, concretely relates to artificial cornea mirror column optical resolution tester.

Background

The artificial cornea is a product which is made of medical high polymer materials and is similar to a human cornea, and generally comprises a lens column and a peripheral bracket. The lens column is made of transparent material with excellent optical characteristics and stable physicochemical properties, and is used for replacing turbid cornea which obstructs an optical pathway of an eyeball after pathological changes, so that good optical resolution is required. At present, an optical resolution tester special for the artificial corneal microscope column is lacked, and when the artificial corneal microscope column is produced in batch, the tester needs to be convenient to operate and debug and also needs to be suitable for testing of large-batch products.

SUMMERY OF THE UTILITY MODEL

In view of the above, a need exists for an optical resolution tester for artificial keratoscope columns, which can accurately and rapidly obtain the optical resolution of the artificial keratoscope columns, and is convenient for debugging, operation and batch detection of the artificial keratoscope columns.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the optical resolution tester for the artificial keratoscope column comprises an adjustable support, and further comprises a light source assembly, a resolution test card assembly, a collimating mirror assembly, a column mounting assembly and a microscope assembly which are sequentially arranged on the adjustable support at intervals, wherein the distances of the resolution test card assembly, the collimating mirror assembly, the column mounting assembly and the microscope assembly can be adjusted according to the light source assembly; the adjustable support comprises a support, at least one guide rail erected on the support and a graduated scale arranged on the support and parallel to the guide rail; the light source assembly comprises a sleeved support assembly arranged on the adjustable support, an LED light source, a condenser lens body and a filter lens body, wherein the LED light source, the condenser lens body and the filter lens body are sequentially arranged in the sleeved support assembly at intervals; the resolution test card assembly comprises a first sliding block bracket movably connected to the guide rail in a guide way, a test card mounting plate arranged on the sliding block bracket and a resolution test card arranged on the test card mounting plate; the collimating mirror assembly comprises a second sliding block bracket movably connected to the guide rail in a guide way and a collimating mirror arranged on the second sliding block bracket; the mirror column mounting assembly comprises a third sliding block bracket movably connected to the guide rail in a guiding way and a mirror column mounting plate mounted on the third sliding block bracket, and the mirror column mounting plate is provided with a mirror column mounting through hole; the microscope assembly comprises a microscope mounting seat arranged on the adjustable support and a microscope arranged on the microscope mounting seat;

after being condensed by the condenser lens body and filtered by the filter lens body, the light rays of the LED light source pass through the resolution test card and the collimating lens in sequence at an angle, are collimated by the collimating lens and then pass through the artificial cornea lens column and the objective lens of the microscope in a parallel and direct way.

Furthermore, the microscope mounting base comprises a fourth slider bracket movably connected to the guide rail in a guiding manner and a screw rod fine-tuning moving platform; the lead screw fine adjustment moving platform comprises a fixed base and a distance-adjustable moving block movably connected to the fixed base, the fixed base is installed on a fourth sliding block support, and the microscope is installed on the distance-adjustable moving block.

Furthermore, the wavelength of the light filtered by the filter body is 530-550 nm.

Further, the light emitted by the LED light source is parallel light.

Furthermore, the emission angle of the light of the LED light source after being condensed by the condenser lens body is 6-11 degrees.

The utility model has the advantages that:

the utility model relates to an artificial corneal microscope column optical resolution tester which is respectively connected with a sliding block bracket through an adjustable support by a guide rail, thereby enabling a resolution test card, a collimating mirror, a microscope column and a microscope to rapidly adjust the distance relative to a light source component, and accurately determining positioning data through a graduated scale, and providing a movable adjusting platform convenient for operation for accurate measurement, calculation and debugging of the tester; the light emitted by the LED light source is polymerized through the condenser lens body, and is filtered through the filter lens body, so that light which is suitable for being observed by human eyes and has a specific wavelength and an emission angle is formed, and the definition of an image observed by a microscope can be ensured while the eye health of a tester is ensured; the artificial corneal column is quickly installed or replaced through the column installation through hole, and the secondary quick adjustment is carried out through the microscope focal length, so that the batch test of the column is realized; after light of the light source is condensed and filtered, the light penetrates through the resolution test card, has a certain emission angle, is collimated by the collimating lens to form parallel light, and the accuracy of resolution test is further improved.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of an artificial keratoscope column optical resolution tester of the present invention;

FIG. 2 is a schematic diagram of the optical resolution tester of the artificial keratoscope column of the present invention;

FIG. 3 is a front view of a resolution test card according to the present invention;

description of reference numerals:

an adjustable support 1; a light source assembly 2; a resolution test card assembly 3; a collimator lens assembly 4; a mirror post mounting assembly 5; a microscope assembly 6; a bracket 11; a guide rail 12; a scale 13; a socket support member 21; an LED light source 22; a condenser body 23; a filter body 24; a first slider bracket 31; a survey mark card mounting plate 32; a resolution test card 33; a second slider bracket 41; a collimating mirror 42; a third slider bracket 51; the mirror post mounting plate 52; a mirror post mounting through-hole 521; a microscope mount 61; a microscope 62; a fourth slider bracket 611; the lead screw fine tuning moving platform 612; a stationary base 6121; the distance moving block 6122 can be adjusted.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are combined below to describe the technical solutions of the present invention clearly and completely. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, the definitions of "first", "second", "third", "fourth" features may explicitly or implicitly include one or more of such features.

Examples

As shown in fig. 1 and 2, an optical resolution tester for an artificial keratoscope column includes an adjustable support 1, and further includes a light source assembly 2, a resolution test card assembly 3, a collimator lens assembly 4, a column mounting assembly 5 for mounting the artificial keratoscope column, and a microscope assembly 6 which are sequentially arranged on the adjustable support 1 at intervals, wherein the respective distances of the resolution test card assembly 3, the collimator lens assembly 4, the column mounting assembly 5, and the microscope assembly 6 can be adjusted according to the light source assembly 2; the adjustable support 1 comprises a bracket 11, at least one guide rail 12 arranged on the bracket 11 and a graduated scale 13 arranged on the bracket 11 and parallel to the guide rail 12; the light source assembly 2 comprises a sleeved support assembly 21 arranged on the adjustable support 1, and further comprises an LED light source 22, a condenser lens body 23 and a filter lens body 24, wherein the LED light source 22, the condenser lens body 23 and the filter lens body 24 are sequentially arranged in the sleeved support assembly 21 at intervals, and are used for converging light rays to form a light-emitting angle, and the filter lens body is used for filtering light rays beyond a limited wavelength; the resolution test card assembly 3 comprises a first sliding block bracket 31 movably connected to the guide rail 12 in a guiding manner, a test card mounting plate 32 arranged on the sliding block bracket, and a resolution test card 33 arranged on the test card mounting plate 32; the collimator lens assembly 4 comprises a second slider bracket 41 movably connected to the guide rail 12, and a collimator lens 42 mounted on the second slider bracket 41; the mirror column mounting assembly 5 comprises a third sliding block bracket 51 movably connected to the guide rail 12 in a guiding manner, and a mirror column mounting plate 52 mounted on the third sliding block bracket 51, wherein the mirror column mounting plate 52 is provided with a mirror column mounting through hole 521; the microscope assembly 6 comprises a microscope mounting seat 61 arranged on the adjustable support 1 and a microscope 62 arranged on the microscope mounting seat 61;

the light of the LED light source 22 is condensed by the condenser lens body 23 and filtered by the filter lens body 24, then sequentially passes through the resolution test card 33 and the collimating lens 42 at an angle, and is collimated by the collimating lens 42 and then parallelly and directly passes through the artificial cornea column and the objective lens of the microscope 62;

specifically, the condenser lens body is a convex lens; the bracket 11 is a cuboid rack; the resolution test card assembly 3, the collimating mirror assembly 4 and the mirror column mounting assembly 5 are all vertically arranged on the guide rail 12, and the guide rail 12 is parallel to the light source assembly 2 and the microscope assembly 6 respectively.

Further, the microscope mounting base 61 includes a fourth slider bracket 611 movably connected to the guide rail 12 and a lead screw fine adjustment moving platform 612; the lead screw fine adjustment moving platform 612 comprises a fixed base 6121 and a distance adjustable moving block 6122 movably connected to the fixed base 6121, the fixed base 6121 is installed on the fourth slider bracket 611, and the microscope 62 is installed on the distance adjustable moving block 6122.

As shown in fig. 1, the wavelength of light filtered by the filter body 24 is 530 nm to 550nm, and light with a wavelength other than 530 nm to 550nm is filtered by the filter body 24. The light is composed of electromagnetic radiation traveling in waves, the electromagnetic spectrum including radio waves, millimeter waves, microwaves, infrared light, visible light, ultraviolet light (UVA and UVB), x-rays, and gamma rays, the visible spectrum including the longest visible wavelength of about 700 nm and the shortest wavelength of about 400nm (nanometers or 10-9 meters), and the wavelength of light filtered by the filter body 24 is preferably 546nm in order to ensure that the light can be observed clearly and for a long time using the microscope 62 without damaging the eyes after passing through the resolution test card 33.

Further, the light emitted from the LED light source 22 is parallel light.

Further, the emission angle of the light of the LED light source 22 after being condensed by the condenser body 23 is 6 to 11 degrees.

Further, the resolution test card 33 is a u.s.air force 1951 resolution test card (as shown in fig. 3) or a 3nh ISO12233 resolution test card, etc.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The optical resolution tester for the artificial keratoscope column is characterized by comprising an adjustable support, and further comprising a light source assembly, a resolution test card assembly, a collimating mirror assembly, a column mounting assembly and a microscope assembly which are sequentially arranged on the adjustable support at intervals, wherein the column mounting assembly and the microscope assembly are used for mounting the artificial keratoscope column, and the resolution test card assembly, the collimating mirror assembly, the column mounting assembly and the microscope assembly can adjust respective distances according to the light source assembly; the adjustable support comprises a support, at least one guide rail erected on the support and a graduated scale arranged on the support and parallel to the guide rail; the light source assembly comprises a sleeved support assembly arranged on the adjustable support, an LED light source, a condenser lens body and a filter lens body, wherein the LED light source, the condenser lens body and the filter lens body are sequentially arranged in the sleeved support assembly at intervals; the resolution test card assembly comprises a first sliding block bracket movably connected to the guide rail in a guide way, a test card mounting plate arranged on the sliding block bracket and a resolution test card arranged on the test card mounting plate; the collimating mirror assembly comprises a second sliding block bracket movably connected to the guide rail in a guide way and a collimating mirror arranged on the second sliding block bracket; the mirror column mounting assembly comprises a third sliding block bracket movably connected to the guide rail in a guiding way and a mirror column mounting plate mounted on the third sliding block bracket, and the mirror column mounting plate is provided with a mirror column mounting through hole; the microscope assembly comprises a microscope mounting seat arranged on the adjustable support and a microscope arranged on the microscope mounting seat;

2. The keratoscope column optics resolution tester as claimed in claim 1, wherein the microscope mount comprises a fourth slider bracket movably guided on the guide rail and a lead screw fine tuning moving platform; the lead screw fine adjustment moving platform comprises a fixed base and a distance-adjustable moving block movably connected to the fixed base, the fixed base is installed on a fourth sliding block support, and the microscope is installed on the distance-adjustable moving block.

3. The apparatus as claimed in claim 1, wherein the light wavelength filtered by the filter body is 530-550 nm.

4. The keratoprosthesis column optical resolution tester as claimed in claim 1, wherein the light emitted from the LED light source is parallel light.

5. The apparatus as claimed in claim 4, wherein the emission angle of the light from the LED light source after being condensed by the condenser body is 6-11 degrees.