Date: Fri, 21 Nov 1997 01:30:17 GMT Server: Apache/1.2b7 Connection: close Content-Type: text/html Last-Modified: Wed, 03 Sep 1997 21:37:21 GMT ETag: "49450a-c87-340dd891" Content-Length: 3207 Accept-Ranges: bytes
The virtual lens microscope is a coherent light device using the techniques of synthetic aperture imaging to produce 2D and 3D holographic images. Unlike conventional holography, the components of an object's 3D spatial Fourier transform are sensed in time sequence. The complex valued image is reconstructed with the inverse transform using the Essex ImSyn(tm) processor.
The synthetic aperture or lens is composed of a multiplicity of optical plane wave transmitter and receiver pairs. Each pair effectively senses a diffraction grating satisfying a Bragg scattering condition. By using arrays of transmitters and receivers, the speed of the sensing process can be greatly enhanced. This also admits the option of transmitting on multiple frequencies. Because the data is in digital format, it is a simple matter to correct for systematic phase errors and to implement common image processing algorithms.
The VLM is currently in the breadboard stage of development. Recent enhancements to the breadboard have produced new high resolution images that demonstrate that we can attain the theoretical resolution.
Essex is actively submitting development proposals and seeking strategic partners to initiate prototype development.
Call 800-53ESSEX and ask for the VLM product manager to discuss your application or special needs.