CN210181899U

CN210181899U - Bisecting lens

Info

Publication number: CN210181899U
Application number: CN201920420946.1U
Authority: CN
Inventors: 任丽艳; 张振华; 于娜; 陈大胜; 于海崙
Original assignee: Changchun Great Wall Teaching Instrument Co Ltd
Current assignee: Changchun Great Wall Teaching Instrument Co Ltd
Priority date: 2019-03-30
Filing date: 2019-03-30
Publication date: 2020-03-24
Anticipated expiration: 2029-03-30

Abstract

The utility model discloses a than tired pair lens, including accurate optics guide rail, beam expanding lens and three-dimensional regulation support and light negative film and adjust the support, be equipped with long scale on the accurate optics guide rail, accurate optics guide rail bottom both sides all are equipped with the lift adjustment nail, the one end that accurate optics guide rail was kept away from to two lift adjustment nails all is equipped with the footing and adjusts the crossbeam, the one end that lift adjustment nail was kept away from to two footing adjustment crossbeams all is equipped with the lift base angle, accurate optics guide rail top is equipped with a plurality of horizontal big slides, the accurate optics guide rail is located and is equipped with a plurality of little slides between two horizontal big slides of one side, the utility model discloses the beneficial effect who reaches is: (1) the utility model discloses a for let the student not only know the demonstration effect to the section lens, can calculate the thickness of cut off part more, also can let the student simultaneously; (2) the interference experiment of polarized light is known through the polarizer set provided by us.

Description

Bisecting lens

Technical Field

The utility model relates to a than tired edge-to-edge lens belongs to experimental facilities technical field.

Background

The tangential lens device used by some schools at present comprises a tangential lens, and devices only realizing double-beam interference are all demonstration experiments, can only see effects, cannot calculate the thickness of a cut-off part, do not have related polarized light interference experiments, do not have good practicability, and have the defect that the experiments are unstable in real equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide and to cut the ja lens than tired, solved some schools at present and used ja lens device, including to cut the ja lens than tired, only realize that the device that two light beams interfere all is the demonstration experiment, can only see the effect, still can not calculate and is cut away partial thickness, also does not have the interference experiment of relevant polarized light, does not have the problem of fine practicality.

In order to solve the technical problem, the utility model provides a following technical scheme: the laser diode comprises a precision optical guide rail, a beam expander, a three-dimensional adjusting support of the beam expander, a light cathode plate and an adjusting support of the light cathode plate, wherein a long scale is arranged on the precision optical guide rail, lifting adjusting nails are arranged on two sides of the bottom of the precision optical guide rail, foot adjusting beams are arranged at one ends, far away from the precision optical guide rail, of the two lifting adjusting nails, lifting base angles are arranged at one ends, far away from the lifting adjusting nails, of the two foot adjusting beams, a plurality of transverse large sliding seats are arranged at the top of the precision optical guide rail, a plurality of small sliding seats are arranged between the two transverse large sliding seats at one side of the precision optical guide rail, a pair of lens groups, a semiconductor laser and a two-dimensional adjusting support of the semiconductor laser are respectively arranged on the two transverse large sliding seats at one side of the precision optical guide rail, and polarizer groups are, the beam expander and the three-dimensional adjustment support thereof are provided with a polarization analysis group on the small sliding seat between the polarization analysis group, two of the other sides of the precise optical guide rails are respectively provided with an imaging lens group and a micrometer eyepiece support on the large transverse sliding seat, the imaging lens group is positioned between the micrometer eyepiece support and the opposite-cutting lens group, and one end of the micrometer eyepiece support, far away from the imaging lens group, is provided with a micrometer eyepiece.

As an optimal technical scheme of the utility model, the one end that precision optics guide rail top was kept away from the micrometer eyepiece is equipped with square installation and does, and one side that precision optics guide rail one end was kept away from to this square mount pad is equipped with little white screen, and this square mount pad opposite side is equipped with big white screen, just little white screen and big white screen all are connected for dismantling with square mount pad.

As an optimal technical scheme of the utility model, semiconductor laser and two-dimentional regulation support are adjusted the support by laser instrument and two-position and are constituteed, beam expander and three-dimensional regulation support are adjusted the support by beam expander and tribit and are constituteed, light negative and adjust the support and comprise light negative and adjust the support, use the piece simultaneously to lens group and light negative and adjust the support.

As an optimized technical scheme of the utility model, the beveling lens group is last or is equipped with light negative film and adjusts the support.

The utility model discloses the beneficial effect who reaches is: the utility model discloses a let the student not only can know the demonstration effect to lens, more can calculate the thickness of being cut off the part, also can let the student simultaneously, through the polaroid group that we provided, know the relation of the experiment that relevant polarized light and lens of cutting interfered, this and today have done further perfection again to lens experiment appearance, not only extended student's knowledge face, let classmates also increased dense interest to the research of lens simultaneously, have fine practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural diagram of the large white screen of the present invention;

fig. 3 is a schematic structural view of the negative plate and the adjusting bracket thereof.

Fig. 4 is a schematic structural diagram of the small white screen of the present invention.

In the figure: 1. a semiconductor laser and a two-dimensional adjusting bracket thereof; 2. a polarizer group; 3. a polarization analyzer group; 4. a beam expander and a three-dimensional adjusting bracket thereof; 5. beveling the lens group; 6. an imaging lens group; 7. a micrometer eyepiece mount; 8. a micrometer eyepiece; 9. a large white screen; 10. a light shade sheet and an adjusting bracket thereof; 11. a small white screen; 12. a long scale; 13. lifting adjusting nails; 14. a bottom foot adjusting beam; 15. lifting a bottom corner; 16. a transverse large sliding seat; 17. a small slide seat; 18. precision optical guides.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-4, the dicorotric lens comprises a precision optical guide 18, a beam expander and its three-dimensional adjusting bracket 4, and a photocathode and its adjusting bracket 10, wherein a long scale 12 is arranged on the precision optical guide 18, lifting adjusting nails 13 are arranged on both sides of the bottom of the precision optical guide 18, a bottom adjusting beam 14 is arranged on one end of each of the two lifting adjusting nails 13 far from the precision optical guide 18, a lifting base angle 15 is arranged on one end of each of the two bottom adjusting beams 14 far from the lifting adjusting nails 13, a plurality of large transverse sliders 16 are arranged on the top of the precision optical guide 18, a plurality of small sliders 17 are arranged between the two large transverse sliders 16 on one side of the precision optical guide 18, a dicular lens group 5 and a semiconductor laser and its two-dimensional adjusting bracket 1 are respectively arranged on the two large transverse sliders 16 on one side of the precision optical guide 18, a polarizer group 2 is arranged on the small sliders 17 between the beam expander and its three, the beam expander and the small slide seat 17 between the three-dimensional adjusting support 4 and the polarizer group 2 are provided with a polarizer group 3, two transverse large slide seats 16 on the other side of the precise optical guide rail 18 are respectively provided with an imaging lens group 6 and a micrometer eyepiece support 7, the imaging lens group 6 is positioned between the micrometer eyepiece support 7 and the bisection lens group 5, and one end of the micrometer eyepiece support 7 far away from the imaging lens group 6 is provided with a micrometer eyepiece 8.

A square mounting part is arranged at one end of the top of the precision optical guide rail 18, which is far away from the micrometer eyepiece 8, a small white screen 11 is arranged at one side of the square mounting seat, which is far away from one end of the precision optical guide rail 18, a large white screen 9 is arranged at the other side of the square mounting seat, and the small white screen 11 and the large white screen 9 are detachably connected with the square mounting seat; the semiconductor laser and the two-dimensional adjusting bracket 1 thereof are composed of a laser and a two-position adjusting bracket, the beam expander and the three-dimensional adjusting bracket 4 thereof are composed of a beam expander and a three-position adjusting bracket, and the light cathode plate and the adjusting bracket 10 thereof are composed of a light cathode plate and an adjusting bracket; the bisection lens group 5 is provided with a light negative plate and an adjusting bracket 10 thereof, and the bisection lens group 5, the light negative plate and the adjusting bracket 10 thereof are used at the same time.

Specifically, when using the utility model discloses the time, 1, than the demonstration experiment of tired tangent lens and device thereof: (1) installing a laser and carrying out coarse adjustment, installing a small white screen 11, adjusting the laser to be coaxial with a mechanical shaft of a precise optical guide rail 18, and replacing a large white screen 9; (2) installing a lens to ensure that an optical axis is coaxial with a mechanical axis, (3) installing a bisection lens to ensure that the optical axis is coaxial with the mechanical axis; (4) installing a short focal length lens to adjust the light path again so that a clear image is presented on the large white screen 9.

2. The interference phenomenon brought by polarized light to the tangential lens is understood.

(1) When the polaroid P1 is placed at a proper position between the light source and the bisector lens group 5, interference fringes are still formed on the screen, namely the interference fringes are generated when linearly polarized light is incident on the bisector lens group 5, the distance between the fringes and the position are unchanged, and the brightness is halved. (2) On the basis of the step (1), a light cathode plate (a group of mutually perpendicular polarizing plates (P2, P3)) is placed close to the bisector lens group 5, the middle slit of the light cathode plate is aligned with the slit of the bisector lens group 5, the polarization direction of the polarizing plate P1 is adjusted to form an angle of 45 degrees with the transmission direction of the P2 and the P3, and then the stripes on the screen disappear because the vibration projected by the P1 to the P2 and the P3 becomes two mutually perpendicular vibrations, and the coherent condition of light is not satisfied, and the mutually parallel vibration components exist. (3) By placing the polarizer P4 between the light cathode and the receiving screen and rotating the polarizer P4, interference fringes again appear but the brightness is reduced again. This interference phenomenon is the well-known Fresnel-Arraea law of optics. 3. Calculation of the cut-out size of the lens cut-out the parts were mounted in the manner of fig. 1: the laser, the polarizer group 2, the analyzer group 3, the beam expander, the bisection lens group 5 and the micrometer eyepiece 8(1) are arranged on the two-dimensional transverse sliding base; (2) mounting small holes (a beam expander, a high-time adjustment laser such as a proportional-integral-cut lens, a polaroid and the like are determined during mounting and are coaxial with the guide rail); (3) a beam expander is arranged in front of the laser, and the beam expander is pushed and pulled back and forth, so that the imaging optical group is ensured to be positioned in the center of the image screen; (4) the bisection lens group 5 is arranged, so that the position of the distance between the lens and the beam expanding lens is exactly equal to the focal length of the lens, and an interference image formed by the front and rear push-pull lenses is positioned in the middle of the image screen; (5) removing the image screen, and installing the micrometer eye lens 8 to enable the image to be positioned at the through light hole of the micrometer eye lens 8; (6) a polarizer set is arranged in front of the laser, and a micrometer eyepiece 8 is observed to enable the imaging not to stimulate eyes.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents can be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Than tired pair of section lens, its characterized in that, including precision optics guide rail (18), beam expander lens and three-dimensional regulation support (4) and light negative and adjust support (10) thereof, be equipped with long scale (12) on precision optics guide rail (18), precision optics guide rail (18) bottom both sides all are equipped with lift adjusting nail (13), two the one end that precision optics guide rail (18) were kept away from in lift adjusting nail (13) all is equipped with footing adjusting beam (14), two the one end that lift adjusting nail (13) were kept away from in footing adjusting beam (14) all is equipped with lift base angle (15), precision optics guide rail (18) top is equipped with a plurality of horizontal big slide (16), be equipped with a plurality of little slides (17) between two horizontal big slide (16) that precision optics guide rail (18) are located one side, two of precision optics guide rail (18) one side be equipped with bisection the horizontal big slide (16) respectively and cut lens group (5) and laser semiconductor Ware and two-dimentional regulation support (1) thereof, be equipped with polarizer group (2) on beam expander and three-dimensional regulation support (4) and semiconductor laser and two-dimentional regulation support (1) between little slide (17), be equipped with on beam expander and three-dimensional regulation support (4) and the little slide (17) between polarizer group (2) analyzer group (3), two of precision optics guide rail (18) opposite side transversely be equipped with imaging lens group (6) and micrometer eyepiece support (7) on big slide (16) respectively, just imaging lens group (6) are located micrometer eyepiece support (7) and between micrometer eyepiece group (5), the one end that imaging lens group (6) were kept away from to micrometer eyepiece support (7) is equipped with micrometer eyepiece (8).

2. The dicer lens as claimed in claim 1, wherein the end of the top of the precision optical guide rail (18) far away from the micrometer eye lens (8) is provided with a square mounting seat, one side of the square mounting seat far away from the end of the precision optical guide rail (18) is provided with a small white screen (11), the other side of the square mounting seat is provided with a large white screen (9), and the small white screen (11) and the large white screen (9) are detachably connected with the square mounting seat.

3. The dicer lens as claimed in claim 1, characterized in that the semiconductor laser and its two-dimensional adjusting support (1) are composed of a laser and a two-position adjusting support, the beam expander and its three-dimensional adjusting support (4) are composed of a beam expander and a three-position adjusting support, and the photocathode and its adjusting support (10) are composed of a photocathode and an adjusting support.

4. A grazing incidence lens according to claim 1, characterized in that the pair of split lens sets (5) is provided with or provided with a light cathode and its adjusting bracket (10), the pair of split lens sets (5) and the light cathode and its adjusting bracket (10) being used simultaneously.