阅读说明：本技术 一种平场无限远半复消40倍物镜 (flat field infinite half-complex elimination 40-time objective lens ) 是由 王昌进 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种平场无限远半复消40倍物镜,包括底座,上壳体和下壳体,底座活动连接上壳体,上壳体固定连接下壳体,底座上端固定安装摄像头,便于对动态观察过程的记录,底座下端嵌入的灯泡,灯泡内小而集中的灯丝不会使灯丝影像落在被检物体上,且底座下端表面均匀设置多组灯泡,使照明范围均匀布置,上壳体通过密封圈固定连接下壳体,良好的密封环境提供良好的观察条件,下壳体上端的物镜片内腔设置第二卡槽,便于镜片的拆卸和清洗,物镜片上端设置正透镜,正透镜下端设置负透镜,正透镜与负透镜之间设置空隙,使物镜的消色差效果好,负透镜下端设置半月形透镜,以达到校正场曲的缺陷,提高视场边缘成像质量的目的。(The invention discloses a flat field infinite semi-regressive 40-fold objective lens, which comprises a base, an upper shell and a lower shell, wherein the base is movably connected with the upper shell, the upper shell is fixedly connected with the lower shell, a camera is fixedly arranged at the upper end of the base and is convenient for recording a dynamic observation process, a bulb is embedded at the lower end of the base, a small and concentrated filament in the bulb can not lead a filament image to fall on an object to be detected, a plurality of groups of bulbs are uniformly arranged on the surface of the lower end of the base, so that an illumination range is uniformly distributed, the upper shell is fixedly connected with the lower shell through a sealing ring, good observation conditions are provided in a good sealing environment, a second clamping groove is arranged in an inner cavity of an objective lens at the upper end of the lower shell and is convenient for disassembling and cleaning the objective lens, a positive lens is arranged at the upper end of the objective lens, a negative lens is arranged at the, the purpose of correcting the defect of field curvature and improving the imaging quality of the edge of the field of view is achieved.)

1. The utility model provides a 40 times objective that disappears is partly repeated to flat field infinity, includes base (1), goes up casing (2) and lower casing (3), and base (1) swing joint goes up casing (2), goes up casing (2) fixed connection lower casing (3), its characterized in that: the inner cavity of the base (1) is provided with threads (11), the lower end of the base (1) is embedded into a bulb (12), the base (1) is movably connected with an upper shell (2), the upper end of the upper shell (2) is provided with a thread block (21), the inner cavity of the upper shell (2) is provided with a gear (22), the edge of the gear (22) is provided with a lug (221), the lower end of the upper shell (2) is provided with a first clamping groove (23), the upper shell (2) is fixedly connected with a lower shell (3), the upper end of the lower shell (3) is provided with an object lens (31), the inner cavity of the object lens (31) is provided with a second clamping groove (32), the upper end of the object lens (31) is provided with a positive lens (33), the lower end of the positive lens (33) is provided with a negative lens (34), the lower end of the negative lens (34) is provided with a half-moon-shaped lens (, the lower end of the fixing ring (37) is fixedly connected with a limiting sheet (38), and the lower end of the lower shell (3) is provided with an observation hole (39).

2. The flat-field infinity half-extinction 40-fold objective of claim 1, wherein: the bulb (12) is made of a material with a small filament.

3. The flat-field infinity half-extinction 40-fold objective of claim 1, wherein: the upper shell (2) is fixedly connected with the lower shell (3) through a sealing ring (4).

4. The flat-field infinity half-extinction 40-fold objective of claim 1, wherein: a gap (331) is provided between the positive lens (33) and the negative lens (34).

5. The flat-field infinity half-extinction 40-fold objective of claim 1, wherein: the upper end of the base (1) is fixedly provided with a camera (5).

6. the flat-field infinity half-extinction 40-fold objective of claim 1, wherein: the gear (22) and the first clamping groove (23) are matched to rotate the limiting piece (38).

Technical Field

The invention relates to the technical field of objective equipment, in particular to a flat field infinite semi-complex 40-time objective.

Background

The flat field objective lens is formed by adding a half-moon-shaped thick lens in a lens system of the objective lens so as to correct the defect of field curvature, the flat field objective lens has a flat field of view and is more suitable for microscopic examination and photomicrography, and the Zeiss in 2004 proposes that the ICCS objective lens is an ICCS objective lens which further corrects chromatic aberration of magnification and has no strain on the basis of the traditional flat field semi-apochromatic objective lens, enhances the transmittance of short wavelength, enhances the contrast and obviously improves the resolution.

This 40 times objective of half disappearing of flat field infinity, set up casing and lower casing, go up casing and pass through casing under the sealing washer fixed connection, good sealed environment provides good viewing condition, the casing upper end sets up the thing lens down, the inner chamber of objective sets up the upper end and sets up the second draw-in groove, be convenient for the dismantlement and the washing of lens, the upper end of objective sets up positive lens, the positive lens lower extreme sets up negative lens, set up the space between positive lens and the negative lens, it is effectual to make the achromatism of objective, the negative lens lower extreme sets up half moon shape lens, in order to reach the defect of rectifying the field curvature, improve the purpose of visual field edge imaging quality.

Disclosure of Invention

The invention aims to provide a flat field infinite semi-complex 40-time objective lens, which solves the problems of small observation range and chromatic aberration of an observed object in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a40-power objective lens capable of achieving infinite distance and semi-repeated extinction in a flat field comprises a base, an upper shell and a lower shell, wherein the upper shell is movably connected with the base, the lower shell is fixedly connected with the upper shell, threads are arranged on an inner cavity of the base, a bulb is embedded into the lower end of the base, a thread block is arranged at the upper end of the upper shell, a gear is arranged in the inner cavity of the upper shell, a convex block is arranged at the edge of the gear, a first clamping groove is formed in the lower end of the upper shell, an object lens is arranged at the upper end of the lower shell, a second clamping groove is formed in the inner cavity of the object lens, a positive lens is arranged at the upper end of the object lens, a negative lens is arranged at the lower end of the positive lens, a half-moon-shaped lens is arranged at the lower end of the negative lens, a fixed.

Furthermore, the bulb is made of a component made of a material with small and concentrated filaments.

further, the upper shell is fixedly connected with the lower shell through a sealing ring.

Further, a gap is arranged between the positive lens and the negative lens.

Further, a camera is fixedly installed at the upper end of the base.

Furthermore, the gear is matched with the first clamping groove to rotate the limiting piece.

Compared with the prior art, the invention has the following beneficial effects:

1. The invention provides a flat field infinite semi-repeated elimination 40-time objective lens which is provided with a base, wherein a bulb is embedded in the lower end of the base, the bulb is a component made of a small and concentrated filament material, a low-voltage, large-current and high-strength halogen lamp is selected as a lamp source, the small and concentrated filament does not enable a filament image to fall on an object to be detected, so that the observation process is influenced, and a plurality of groups of bulbs are uniformly arranged on the surface of the lower end of the base, so that the illumination range is uniformly distributed.

2. The invention provides a flat field infinite semi-double elimination 40-time objective lens which is provided with an upper shell and a lower shell, wherein the upper shell is fixedly connected with the lower shell through a sealing ring, a good sealed environment provides good observation conditions, the upper end of the lower shell is provided with an object lens, the upper end of the inner cavity of the object lens is provided with a second clamping groove, the lens is convenient to disassemble and clean, the upper end of the object lens is provided with a positive lens, the lower end of the positive lens is provided with a negative lens, a gap is arranged between the positive lens and the negative lens, the achromatic effect of the objective lens is good, and the lower end of the negative lens is provided with a half-moon-shaped lens, so that the purposes of correcting field curvature and.

3. According to the 40-time objective lens with the flat field infinite half-elimination function, the camera is fixedly arranged at the upper end of the base, so that the recording of the dynamic observation process is facilitated, and the accuracy of the observation result is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of an objective lens of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

Fig. 4 is a schematic view of the overall structure of the gear of the present invention.

In the figure: 1. a base; 11. a thread; 12. a bulb; 2. an upper housing; 21. a thread block; 22. a gear; 221. a bump; 23. a first card slot; 3. a lower housing; 31. an objective lens; 32. a second card slot; 33. A positive lens; 331. a void; 34. a negative lens; 35. a meniscus lens; 36. fixing the housing; 37. a stationary ring; 38. a limiting sheet; 39. an observation hole; 4. a seal ring; 5. a camera is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a flat field infinite half-double-elimination 40-fold objective lens comprises a base 1, an upper shell 2 and a lower shell 3, wherein the base 1 is movably connected with the upper shell 2, the upper shell 2 is fixedly connected with the lower shell 3 through a sealing ring 4, a good sealing environment provides good observation conditions, a thread 11 is arranged in an inner cavity of the base 1, a bulb 12 is embedded in the lower end of the base 1, the bulb 12 is a member made of a small and concentrated filament material, a low-voltage, large-current and high-strength halogen lamp is selected as a lamp source, the small and concentrated filament does not cause a filament image to fall on an object to be detected, so that the observation process is influenced, a plurality of groups of bulbs 12 are uniformly arranged on the surface of the lower end of the base 1, the illumination range is uniformly arranged, the base 1 is movably connected with the upper shell 2, a thread block 21 is arranged at the upper end of the upper, the lower end of the upper shell 2 is provided with a first clamping groove 23, the upper shell 2 is fixedly connected with the lower shell 3, the upper end of the lower shell 3 is provided with an object lens 31, the inner cavity of the object lens 31 is provided with a second clamping groove 32, the detachment and cleaning of the lens are convenient, the upper end of the object lens 31 is provided with a positive lens 33, the lower end of the positive lens 33 is provided with a negative lens 34, a gap 331 is arranged between the positive lens 33 and the negative lens 34, the achromatic effect of the object lens is good, the lower end of the negative lens 34 is provided with a half-moon-shaped lens 35, so as to achieve the purposes of correcting the defect of half-moon curvature and improving the imaging quality of the edge of the field of view, the surface of the object lens 31 is provided with a fixed shell 36, the lower end of the object lens 31 is provided with a fixed ring 37, the lower end of the fixed ring 37 is fixedly connected with a limiting piece 38, the gear 22, the accuracy of the observation result is ensured.

In summary, the following steps: the invention provides a 40-fold objective lens with flat field infinite half-elimination, which comprises a base 1, an upper shell 2 and a lower shell 3, wherein the base 1 is movably connected with the upper shell 2, the upper shell 2 is fixedly connected with the lower shell 3, the base 1 is arranged, a camera 5 is fixedly arranged at the upper end of the base 1, so that the recording of the process of dynamic observation is convenient, the accuracy of an observation result is ensured, a bulb 12 is embedded at the lower end of the base 1, the bulb 12 adopts a component made of a material with small and concentrated filaments, a lamp source adopts a halogen lamp with low voltage, large current and high strength, the small and concentrated filaments can not lead the filament image to fall on an object to be detected, so that the observation process is influenced, a plurality of groups of bulbs 12 are uniformly arranged on the surface of the lower end of the base 1, the illumination range is uniformly arranged, the upper shell 2 and the lower shell 3 are arranged, the upper shell 2 is fixedly connected with the lower shell, the upper end of the lower shell 3 is provided with an object lens 31, the inner cavity of the object lens 31 is provided with a second clamping groove 32, the object lens is convenient to disassemble and clean, the upper end of the object lens 31 is provided with a positive lens 33, the lower end of the positive lens 33 is provided with a negative lens 34, a gap 331 is arranged between the positive lens 33 and the negative lens 34, the achromatic effect of the object lens is good, and the lower end of the negative lens 34 is provided with a half-moon-shaped lens 35, so that the defect of field curvature correction is achieved, and the purpose of improving the imaging quality of the edge.

it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.