Patent ID: 11920191
Assignee: LIFE TECHNOLOGIES CORPORATION
Field: Measurement (Instruments)
Classification: CPC C  B  G | IPC B  C  G

Claim 0:
1. An instrument for biological analysis, comprising:
an excitation source;
an optical sensor configured to receive emissions from a biological sample in response to the excitation source;
an emission optical system comprising a sensor lens disposed along an emission optical path;
an imaging unit comprising:
a cavity containing the optical sensor, the cavity comprising a first surface, an opposing second surface, and a threaded housing;
a plate comprising an outer surface disposed on an outer side of the plate, an inner surface disposed on an inner side of the plate, and an elongated slot, the slot having a width and a length that is greater than the width;
the sensor lens disposed on the inner side of the plate; and
a focusing gear disposed on the outer surface of the plate and engaging the threaded housing so as to move the sensor lens along an optical axis thereof so as to adjust a focus of the sensor lens;

wherein the first surface comprises a surface of the sensor lens;
wherein the second surface comprises an optical sensor circuit board; and
wherein the sensor lens is adjustable by indirect engagement via the focusing gear;
wherein the focusing gear is slidable along the length of the slot.