Multispektrale Irisvorrichtung

Details

Veröffentlichungs-Nr.

EP3285116

Aktenzeichen

EP16184475

Anmeldetag

17. August 2016

Veröffentlichung

8. Juli 2020

Erteilung

8. Juli 2020

Rechtsraum

EP

IPC

G03B11/00G03B9/06

Abstract

The invention relates to an iris device (1) for optical imaging systems (71), comprising an aperture arrangement (5) and to a medical imaging system (72) comprising a sensor (15), in particular a camera (15a). Conventional iris devices (1) known from the art unavoidably suffer a necessary trade-off between the depth of field and the amount of light transmitted through the optical system (71), i.e. in particular the amount of light incident on the sensor (15). This disadvantage results from the fact that iris devices (Wo one) of the art transmit or reject light in the same way for all wavelengths (43), i.e. show a spectrally flat transmission property. The disadvantages of prior art iris devices (1) are overcome by the present invention by providing an aperture arrangement (5) which comprises simultaneously at least two apertures (5a) coaxially arranged with respect to a light-transmission direction (70), each of the at least two apertures (5a) limiting light in a different spectral band (49) of the at least two discrete non-overlapping spectral bands (49). The inventive medical imaging system (72) solves the above disadvantages by further comprising at least one inventive iris device (1).

Anmelder

Firma

Leica Instruments (Singapore) Pte. Ltd.

Land

🇸🇬 Singapur

Fachgebiete