DE102008016261A1 - Reflected light- or transmitted light unit's operating condition indicating arrangement for fluorescence microscope, has beam splitter or deflection element transmitting and indicating uncoupled light at position of microscope - Google Patents

Abstract

The arrangement has an illumination unit including a beam splitter (5) i.e. reflector, made of glass or a deflection element for producing an optical path for reflected light- or transmitted light illumination. The splitter or the deflection element uncouples the light from an illumination beam path and transmits the light at a position of a microscope ergonomic for an observer. The splitter or the element indicates the uncoupled light at the position of the microscope. An uncoupling area is matted to the splitter or the element for controlling a dazzle effect by the uncoupled light.

Description

The The invention relates to an arrangement for displaying the operating state a microscope, for example, for the operating state a reflected or transmitted light unit on microscopes.

For the display and detection of the operating state is in practice a luminous display is provided so that the user can quickly orient themselves can. This ad should be appropriately close and be placed on the observation position side so that it can be seen well by the user. This can be done by a suitable circuit on a board a light source, for example an LED, are controlled accordingly.

adversely Here is that the circuit on the board the additional Has to supply light source with energy. Furthermore, additional Cables to the indicating light source necessary. To create a dazzling effect Avoiding the observer is for a diffused light to worry about the ad. For this purpose, a scattering element, for example a diffuser, between the indicating light source and the Be provided for observers.

From the JP 2004/252035 A For example, a fluorescence microscope and an illuminator for fluorescence microscopes are known wherein the light passing through a beam splitter of a filter set is used to generate an indication of which filter set is currently in the beam path. For this purpose, the light passing through the beam splitter is directed onto a spectral sensor via a deflection mirror arranged in the axis of rotation of a reflector turret. By means of a spectral decomposition of the light, a statement can be made about the filter set used.

Of the Invention is based on the object, a device for display the operating state of a microscope, with which in a simple way and by a simple construction light different Spectral composition of largely arbitrary location be coupled to the illumination beam path of the microscope can and at an ergonomically favorable for the observer Position displayed on the housing of the microscope can be.

According to the invention solved this task by the means of the main claim. In the other claims are embodiments and Details of the invention disclosed.

So It is advantageous that as a means of coupling out of light Beam splitter or a deflecting element in the illumination beam path is provided. Such a beam splitter or reversing element often present in the illumination beam path of a microscope, For example, in a microscope with incident illumination. These Elements can then be used to extract for the Operating state display required light can be used.

A advantageous embodiment results when as a means for Decoupling of light a light guide or a light staircase in the illumination beam path is provided. A light staircase is understood to be an optical component which from several cascaded mirrors or consists of several prisms with reflective surfaces.

Advantageous It is also that as a means of forwarding and displaying the decoupled Light a light guide and / or a light staircase in the illumination beam path are provided, which in the light direction after the beam splitter or are arranged after the deflecting element.

Advantageous It may also be when the light stair or the light guide in Direction of light in front of the beam splitter or in front of the deflecting element are arranged in the illumination beam path.

to Facilitate the observation of the display of the operating state of the microscope, it is beneficial if to avoid Blinding effect by the decoupled light the decoupling point on Means for coupling the light is frosted.

A Improvement of the display can also be achieved by: a change in the color of the decoupled light arranged color filter in the beam path of the decoupled light is made.

Advantageous It may also be when the light guide and / or the light staircase are themselves dyed / is. These elements then consist of a suitable colored material. The coloring can for example also be done by fluorescence.

Advantageous is it that the light guide and / or the light staircase made of glass or consist of another suitable, mouldable material, for. B. made of PMMA.

It can also be advantageous if the exit surface of the Light staircase and the exit surface of the light guide frosted and / or colored.

With the arrangement according to the invention, the operating state of a reflected light and also a transmitted light illumination device of microscopes at an ergonomic position on the housing be determined by means of a luminous display by the observer. This provides a fast orientation of the observer in the vicinity of his observation position with respect to parameters of the illumination. In addition to an operating status display, a simultaneous display of the intensity of the set light intensity of the light source is made possible. It is also visible in narrow-band light sources, the color of the light source to the outside, which may be of interest for fluorescence applications, so that the operating state of the color and the intensity of the light exit surface is visible at the display position.

The Invention will hereinafter be an embodiment be explained in more detail. In the drawing show

1 an arrangement for incident light illumination beam path with a light staircase,

2 a light staircase in perspective,

3 a perspective view of a device according to the invention with a light guide behind the beam splitter,

4 an arrangement with a lens at the display position on the microscope and

5 an arrangement with an entrance surface of the light guide in front of the beam splitter.

In 1 is shown greatly simplified the optical structure of an inventive arrangement for incident light illumination beam path of a microscope. This beam path comprises a light source 1 , optical elements in the form of lenses 2 ; 3 and 4 or lens groups for shaping and guiding the illumination beam path. The arrangement for reflected illumination is arranged on upright microscopes above the microscope objective on the microscope stand. The lens 4 is in the light direction designed as a partially transmissive mirror beam splitter 5 downstream of which the light source 1 emitted light in the direction of the lens and the object to be illuminated, deflects. Through the lens (not in 1 shown) then the light coming from the object through the beam splitter 5 through to the eyepiece plane in which the object is imaged through the lens, for observation or recording. In the arrangement for Auflichtbeleuchtung is the beam splitter 5 a light staircase 6 downstream, which one through the beam splitter 5 from the illumination beam path hidden beam 7 is forwarded. In place of the light staircase 6 can also be a light guide or a fiber optic bundle for forwarding the light beam 7 be provided in the arrangement. The light beam 7 will be at the entrance area 8th in the light staircase 7 or the light guide and fed to the exit surface 9 forwarded. The exit surface 9 is located at the display position on the microscope housing at a well visible and ergonomic position for the observer. So that the light exiting here does not blind the observer, the exit surface can 9 be executed matted. The light guide or the light staircase 6 is the indicating element. The color of the exit surface 9 Exiting light can also be transmitted either through one between the beam splitter 7 and the light staircase 6 or a light guide provided color filter can be varied. Also, the brightness can be adjusted at this point varies.

In the 2 Perspective illustrated light staircase 6 preferably consists of a translucent, pourable or otherwise malleable plastic or glass, the material of the light staircase 6 or the light guide itself may be colored to match the color and the brightness of the exit surface 9 leaving light to vary. The light staircase 6 itself can also consist of a bundling of several light rods, light tubes, cylinders, cones or other suitable elements. Furthermore, any other suitable form of elements is conceivable with which light can be passed from one place to another. By such an arrangement, additional lighting for displaying the operating state of the microscope and its leads and brackets and the associated supply can be saved by an electronic circuit on the lighting board.

At the example in 2 illustrated light staircase 6 are arms on the sides 11 ; 12 arranged, which locking elements 13 ; 14 own, which attach to the light staircase 6 in the housing of the microscope in correspondingly formed notches (not shown) engage. The fastening of the light staircase 6 in the housing can also be done by gluing or in another suitable manner rigid or detachable.

In the perspective view 3 in which for functionally identical elements the same reference numerals as in 1 is used in the arrangement for displaying the operating state of the beam splitter 5 a light guide 15 with an entrance area 16 and an exit surface 17 for that the beam splitter 5 passing light bundles 7 downstream. Also, the exit surface 17 , which is arranged at a position ergonomically favorable for the observer on the microscope, be frosted or colored.

4 shows an arrangement in which the Entire light passing through the beam splitter 18 on one as a diffuser 20 formed exit surface impinges, which may also be colored. In the execution after 4 is between the beam splitter 5 and the diffuser 20 for example, a funnel-shaped element 19 provided, in which the beam splitter 5 passing light to the lens 20 is directed.

5 shows an inventive arrangement with a light guide 21 its light entrance surface 22 in the illumination beam path of the beam splitter 5 is positioned. The exit surface 23 of the light guide 21 , Here is also arranged at an ergonomically favorable position for the observer on the microscope, which may be frosted or colored. The light guides 21 is guided around the illumination beam path and arranged so that it does not affect the beam path.

The Invention has been described in relation to a particular embodiment described. However, it is obvious to a person skilled in the art, that modifications and changes are made can, without losing the scope of the following To leave claims.

1

light source

2, 3, 4

lenses

5

beamsplitter

6

light stairs

7

light beam

8th

entry surface

9

exit area

11; 12

poor

13; 14

locking element

15

optical fiber

16

entry surface

17

exit area

18

light

19

funnel shaped element

20

diffuser

21

optical fiber

22

Light entry surface

23

exit area

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - JP 2004/252035 A [0004]

Claims (11)

Arrangement for displaying the operating state of a microscope with a beam splitter ( 5 ) or a deflection element comprising lighting unit for generating a beam path for incident or transmitted light illumination, comprising - means for coupling light from the illumination beam path and for transmission of this light to an ergonomically favorable for the observer position of the microscope - and means for displaying the decoupled light this position. Arrangement according to claim 1, characterized in that as means for coupling out light, a beam splitter ( 5 ) or a deflection element is provided in the illumination beam path. Arrangement according to claim 1, characterized in that as means for coupling out light, a light guide ( 15 ; 21 ) or a light staircase ( 6 ) is provided in the illumination beam path. Arrangement according to claim 1, characterized in that as a means for forwarding and displaying the coupled-out light, a light guide ( 15 ; 21 ) and / or a light staircase ( 6 ) are provided in the illumination beam path, which in the light direction after the beam splitter ( 5 ) or are arranged after the deflecting element. Arrangement according to claim 1, characterized in that the light staircase ( 6 ) or the light guide ( 21 ) in the light direction in front of the beam splitter ( 5 ) or in front of the deflecting element in the illumination beam path. Arrangement according to one of claims 1 to 5, characterized in that to avoid glare by the decoupled light the decoupling point on the means for Outcoupling and forwarding of the decoupled light frosted is. Arrangement according to one of claims 1 to 6, characterized in that for changing the color of the decoupled light color filter provided in the beam path are. Arrangement according to one of claims 1 to 7, characterized in that the light guide ( 15 ; 21 ) and / or the light staircase ( 6 ) are themselves dyed / is. Arrangement according to one of claims 1 to 8, characterized in that the light guide ( 15 ; 21 ) and / or the light staircase ( 6 ) made of glass or other suitable moldable material. Arrangement according to one of claims 1 to 9, characterized in that for eliminating and filtering out harmful radiation, the light guide ( 15 ; 21 ) and / or the light staircase ( 6 ) are designed as filters with light-filtering properties / is. Arrangement according to one of the preceding claims 1 to 10, characterized in that the exit surface ( 9 ) the light staircase ( 6 ) and the exit surface ( 17 ; 23 ) of the light guide ( 15 ; 21 ) are frosted and / or dyed.