DD140295A1 - OBJECT HOLDER FOR MICROSCOPIC PREPARATES - Google Patents

Abstract

The invention relates to an object holder for microscopic Preparations used in object tables for microscopes, especially those with x-y movement, serves to receive standardized slides. The object of the invention is an object holder over which the Microscope lenses on a nosepiece with out of the vertical to the rear away from the user inclined axis of rotation throughout Movement range of the stage are collision-free switched can. The slide must be disabled from the User side be inserted, The components of the object holder are not built higher than the table above the table Slide thickness including the cover glass thickness. The barrel will therefore ordered versed. The raised operating handle of the Retaining lever is outside the switching range of the nosepiece placed. The touch of the holding lever with the table surface is avoided by grinding support points in the swivel range.

Description

ή 209 287

Title; Plantbrewer for microscopic preparations

Field of application of the invention

Object tables for microscopes, especially those with x-y population, for recording and screening microscopic specimens mounted on standardized slides.

Characteristics of the known technical solutions o b ^o l ' ^c > ^r * n *' ° n Obioifth-olter "stendr ized Obiekttraqer for microscopic preparations generally consist of a fixed part of the plant and a rotatably mounted holding lever in firmly connected combination. The holding force is introduced by a 'torsion spring in the retaining lever. The pivot bearing and the torsion spring are arranged in a barrel above the object system parts and thus above the specimen support surface of the object table.

The overhead barrel has always been a source of interference with the use of a nosepiece, which is generally part of the basic equipment of a microscope.

When turning the turret to advance another lens in unit with any specimen = barrel position within the table movement, there may be a collision between the lens and barrel. There is a risk of damage to these high-quality imaging systems. By constructive measures this drawback can be largely eliminated if an objective turret is present, whose axis of rotation is inclined from the perpendicular aer forward to the user.

It can not be avoided if a revolver is present, whose axis of rotation is inclined away from the vertical to the rear by the user. The barrel block generally locks the revolver, so that no functionally reliable solution is possible.

In both cases there is a requirement that the open side of the object holder faces the user in order to be able to insert the object holder without hindrance *

Object of the invention

New type of object holder while maintaining the proven mechanical principle of the previous embodiment, in which all disturbing increases, especially the barrel, are eliminated in the switching range of a revolving nosepiece with tilted axis of rotation for the entire Bewegungsbereieh the object table, so that the lens turret can be collided without collision.

The slide must be able to be inserted without hindrance from the user side.

Explanation of the essence of the invention

The invention has for its object to provide © object holder in which a nosepiece can be switched completely collision-free with the axis of rotation inclined backwards by the object holder is not designed higher in the switching range of the lenses than the slide and the slide from the user side disability ~ can be freely inserted.

This object is achieved in that the barrel is arranged completely submerged that the cocking lever handle is at the extreme and from the pivot bearing furthest farthest end, and dass.der the entire object holder in the switching range of the lenses is not higher than the Objektträge'rdicke. In addition, increased grinding support points in the form of indented balls are provided on the table surface in the swivel range of the lever »

209

embodiment

The invention will be explained in more detail below with reference to two schematic diagrams.

FIG. 1 shows the side view,

Figure 2 shows the top view of the embodiment. On a microscope stage (1) is a fixed part of the system

(2) arranged so that an applied slide (3) receives an oriented position. The plant part (2) is not higher than the slide (3). On the slide (3) an applied preparation is covered by a cover glass (4).

In the table top (1) a barrel (5) is arranged sunk with pivot bearing and torsion spring.

On the barrel (5) of the retaining lever (6) is freely rotatably mounted so that it is not higher than the cover glass (4). At the front end of the holding lever (6) is an elevated lever handle

The holding lever (6) tensioned by means of torsion spring the slide

(3) against the plant part (2).

The movement end positions of the holding lever (S) are limited by stops.

To insert the slide (3), the holding lever (6) with lever handle (7) is pressed against the torsion spring to the side.

In lever operation, the balls (8) pressed into the table top (I) prevent lever contact with the table surface (9), thereby preventing damage to them

Due to the described and represented.8 arrangement is a populated nosepiece (IQ) .mit tilted backwards axis of rotation (11) completely collision-free switchable.

The lever handle (7) lies outside the switching range of the nosepiece (10).

By the user, the slide (3) in the operating direction (12) can be freely inserted *

Claims (2)

Claim for invention 1. Object holder for microscopic preparations, especially on microscope stages, with an xy movement, consisting of a fixed contact part and a rotatably mounted holding lever, wherein the holding force is introduced by a torsion spring, which is arranged in a barrel in the retaining lever and the slide from the user side can be inserted without hindrance, characterized in that the barrel is arranged completely submerged, that the tension lever grip lies at the lever end furthest away from the pivot bearing, and that the entire object holder in the switching range of the objectives is not higher than the object carrier thickness. 2 _# object holder according to item 1, characterized in that elevated grinding support points are provided in the form of depressed balls on the table surface in the pivoting range of the lever. For this // page drawing