CN2494513Y - Phase contrast device of inverted biologic microscope - Google Patents

Abstract

A phase contrast device of inverted biologic microscope includes an optical collector with an adjustable central annular diaphragm. The annular diaphragm is arranged near the rear focal surface of the optical collector. The device is provided with a phase contrast annular plate 2 conjugated with the annular diaphragm and a central telescope 1 used to observe the registration situation of the annular diaphragm and the phase contrast annular plate 2. The phase contrast annular plate 2 is arranged in the opposite position of the optical length from an objective to an ocular and is movably connected with a microscope handle 3. The device avoids the trouble of preparing a special objective. Compared with a normal device, the device causes a more excellent imaging quality during a light field observation and can realize rapid switch between a phase contrast observation and the light field observation.

Description

Contrast unit of reverse biologic microscope

Technical field

The utility model relates to a kind of servicing unit of inverted biologic microscope.

Background technology

Conventional inverted biologic microscope comprises the condenser with ring light hurdle in adjustable, the ring light hurdle places near the condenser back focal plane, with the phase contrast object lens of ring light hurdle conjugation and the centering telescope that is used for observing ring light hurdle and phase contrast object lens alignment situation, the phase contrast object lens are installed in object lens inside, thereby generally all need dispose each cover of light field object lens and phase contrast object lens, make accessory too much, bother during use, and the phase contrast object lens can not move, if making light field with the phase contrast object lens observes, then luminous flux is restricted, and then influence image quality, when doing the phase contrast observation, can only be equipped with special-purpose phase contrast object lens, so it in use, it is poly-to have increased the operation step, and has increased the cost of complete inverted biologic microscope, and buyer difficulty bears.

Summary of the invention

The purpose of this utility model provides a kind of cost saving, the convenient inverted biologic microscope contrast unit that uses.

The technical solution of the utility model is achieved in that

A kind of inverted biologic microscope contrast unit, it comprises that condenser, ring light hurdle with ring light hurdle in adjustable place near the condenser back focal plane, it is characterized in that: it is provided with the phase contrast ring plate with ring light hurdle conjugation, and the centering telescope that is used for observing ring light hurdle and phase contrast ring plate alignment situation, phase contrast ring plate be placed in object lens to the eyepiece light path relative position and with handle of microscope between be movable and be connected.

Above-mentioned contrast unit of reverse biologic microscope is characterized in that described phase contrast ring plate makes slide plate or rotating disk, and slide plate or rotating disk are provided with object lens and/or through hole.

Above-mentioned contrast unit of reverse biologic microscope is characterized in that the object lens on the described phase contrast ring plate are installed on microscope slide plate or the rotating disk in groups by different enlargement ratios.

After inverted biologic microscope is configured to contrast unit, no longer need the special-purpose phase contrast object lens of a cover, the ring light hurdle and the phase contrast ring plate that only need configuration one cover light field object lens and adapt with it, when doing the light field observation, ring light hurdle and phase contrast ring plate shift out light path, when doing the phase contrast observation, ring light hurdle and phase contrast ring plate shift-in light path, thereby can between two kinds of view modes, quicken conversion, and compare with conventional inverted biologic microscope, image quality was better when light field was observed, because phase contrast ring plate shifts out from light path, imaging is not exerted an influence, and avoided being equipped with the trouble of special-purpose phase contrast object lens, reduced the cost when phase contrast is observed.

Description of drawings

Fig. 1 is an index path of the present utility model.

Fig. 2 is the installation site synoptic diagram of phase contrast ring plate among Fig. 1.

But Fig. 3 is a phase contrast ring plate shown in Figure 2 divides two-layer push-pull structure synoptic diagram in the straight channel type structure.

Fig. 4 is that phase contrast ring plate shown in Figure 2 is individual layer push-pull structure synoptic diagram in the straight channel type structure.

Fig. 5 is that phase contrast ring plate can be realized the structural representation that the object lens of different multiples are replaced among Fig. 2 in half-open slot type structure.

Fig. 6 is that phase contrast ring plate is disk rotational structure synoptic diagram.

Specific embodiment

See also Fig. 1 and Fig. 2, a kind of inverted biologic microscope contrast unit, the function that constitutes inverted biologic microscope is by light source, collecting lens, the ring light hurdle, condenser, object lens and centering telescope 1 are realized, described contrast unit comprises the condenser with ring light hurdle in adjustable, the ring light hurdle places near the condenser back focal plane, with the phase contrast ring plate 2 of ring light hurdle conjugation and the centering telescope 1 that is used for observing ring light hurdle and phase contrast ring plate 2 cover situations, phase contrast ring plate 2 is placed in the relative position of object lens to the eyepiece light path, centering telescope 1 adopts plug-in type to be connected with eyepiece stalk, its objective is and is convenient to change sight glass.

Referring to Fig. 2, this is a kind of legend with inverted biologic microscope contrast unit installation position of structure shown in Figure 1, it improves on the basis of existing inverted biologic microscope and obtains, promptly at the storing object lens place that has inverted biologic microscope now, put into the phase contrast ring plate 2 that is equipped with phase contrast object lens and light field object lens, storing place of phase contrast ring plate 2 is positioned at the upper end of inverted biologic microscope handle 3.

Fig. 3 or Fig. 4 have provided handle 3 upper ends and have had straight trough, make the different embodiments that phase contrast ring plate 2 can not drawer type from the handle 3; Fig. 3 is that two layers of phase contrast ring plates 2 minutes are plug-type, and object lens and through hole can be aimed between the levels, and through hole is made light field and observed and use; Fig. 4 is that phase contrast ring plate 2 adopts the plug-type light path corresponding position that is installed in handle 3 of individual layer.

But Fig. 5 is handle 3 upper ends has half-open groove, make the embodiment of the drawer type that phase contrast ring plate 2 can change from half-open groove, and it can adopt the phase contrast ring plate 2 of different multiples to carry out mutual alternative in using.

Fig. 6 has annular groove in handle 3 upper ends of inverted biologic microscope, phase contrast ring plate 2 is made rotating disk 4 rotate in annular groove, has through hole on the rotating disk 4, can make light field and observe use.

Aforesaid contrast unit of reverse biologic microscope, described centering telescope 1 is by placing microscope ocular to the light path of 2 of phase contrast ring plates removable Bertrand lens and microscope ocular to form.

In the foregoing description, object lens are according to the magnification difference, be placed on phase contrast ring plate 2 or the rotating disk 4 in groups.

Through more than be the phase contrast ring plate 2 of skateboard structure after being provided with or be to put respectively on the phase contrast ring plate 2 of rotary-disk type structure the corresponding eyeglass that amplifies 4,10,20,40,60 multiplying powers is arranged.

Its usage of inverted biologic microscope after above-mentioned the setting is identical with the using method of conventional inverted biologic microscope, and makes it very convenient when the enlargement ratio conversion is observed.

Claims (3)

1, a kind of contrast unit of reverse biologic microscope, it comprises that condenser, ring light hurdle with ring light hurdle in adjustable place near the condenser back focal plane, it is characterized in that: it is provided with the phase contrast ring plate (2) with ring light hurdle conjugation, and the centering telescope (1) that is used for observing ring light hurdle and phase contrast ring plate (2) alignment situation, phase contrast ring plate (2) be placed in object lens to the eyepiece light path relative position and with handle of microscope (3) between be movable and be connected.

2, contrast unit of reverse biologic microscope according to claim 1 is characterized in that described phase contrast ring plate (2) is slide plate or rotating disk, and slide plate or rotating disk are provided with object lens and/or through hole.

3, contrast unit of reverse biologic microscope according to claim 1 and 2 is characterized in that the object lens on the described phase contrast ring plate (2) are installed on microscope slide plate or the rotating disk (4) in groups by different enlargement ratios.

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