Abstract: The present invention presents an optical apparatus and a method for combined use of at least two independent optical observation devices. At least two different and independent optical monoculars, designed for operating independently from each other in different light spectrumparts, are combined together. The independent optical monoculars are linked mechanically and electronically into a single optical system. At least two independent viewfinders and processors are electronically linked to each other. Electronic connection can be provided wired or wireless. The method for combined use of optical monoculars generates a single fused image from different light spectrum parts. An improved and detailed images are generated, which include data from different light spectrum parts. The fused image is generated dynamically in a real time mode.

Abstract: A clamping device for coupling optical devices in coaxial, tandem alignment includes a front clamp assembly that has elastically deformable split collar halves tightenable onto a front optical device by a screw tightenable into bores disposed transversely through a pair of arms extending radially from the split collar halves. A rear optical device support protrudes rearward from the front clamp assembly, and has a releasable fastener such as a screw or dovetail joint for supporting a rear optical device in coaxial alignment with the front optical device. Preferably, the arm is mounted to the front clamp assembly by means of a pivotable joint which is latchable in a first, rearward position, and a second, forward position in which the rear optical device is positioned along the side of the front optical device, so that the front device may be used independently of the rear device.