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Optical device with at least one spectrally selective component

An optical device, a selective technology, applied in optics, optical components, filters, etc., to solve the problems of inaccurate spectral characteristics of detectors and reduced edge steepness

Active Publication Date: 2022-04-08
LEICA MICROSYSTEMS CMS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any increase in beam diameter inevitably results in a decrease in edge steepness
The smaller the edge steepness, the less precise the spectral characteristics of the detector

Method used

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  • Optical device with at least one spectrally selective component
  • Optical device with at least one spectrally selective component
  • Optical device with at least one spectrally selective component

Examples

Experimental program
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Embodiment Construction

[0076] refer to figure 1 , first an explanation will be given below of the use of the spectrally selective component 10 in an optical device according to the invention, in particular in a microscope, to spectrally influence the properties of the illumination light and / or the detection light.

[0077] in accordance with figure 1 In the exemplary embodiment of the spectrally selective component 10 is a variable edge filter, eg, a long pass filter or a short pass filter. As a long-pass filter, an edge filter only transmits the spectrum above a predetermined limit wavelength or the edge of the spectrum, while as a short-pass filter it transmits only the spectrum below the limit wavelength. It should be noted, however, that the following explanations are not limited to filters, but rather to components 10 according to the invention constituted to transmit the spectrum above the edge of the spectrum while reflecting in a defined way the spectrum below the edge of the spectrum (and ...

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Abstract

An optical device is described which has an optical system and at least one spectrally selective component which is arranged in a beam path for spectrally influencing light propagating along the beam path. The spectrally selective component includes an active surface having at least one spectral edge that varies with the position of incidence of light on the active surface. The active surface of the spectrally selective component is arranged at a point in the beam path at which a change in the spectral edge of the active surface caused by a change in the angle of incidence of light incident on the active surface is at least partially caused by light incident on the active surface. Changes in position on the active surface cause changes in the opposite direction of the spectral edge of the active surface to compensate. Alternatively, the effective surface is arranged in the beam path at the position of the image of the pupil of the optical system.

Description

technical field [0001] The invention relates to an optical device, in particular a microscope, having at least one spectrally selective component arranged in a beam path for spectrally influencing light propagating along the beam path, the spectrally selective component At least one active surface is included having a spectral edge that varies with the position of incidence of light on the active surface. Background technique [0002] In many optical setups, dichroic beam splitters are used to split or combine light, while colored filters are used to affect the spectral properties of the light. These components are usually configured such that as they are selected for implementation of the device, their spectral properties are determined, ie cannot be modified by the user anymore during operation of the device. For example, by arranging various filters on a filter wheel or filter slider, and switching one of these filters active depending on the application, some flexibilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20G02B21/00
CPCG02B5/20G02B21/0076G02B21/0064G02B21/16G02B21/361G02B5/285G02B27/142
Inventor H·古杰尔
Owner LEICA MICROSYSTEMS CMS GMBH
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