Fiberoptic couplings

Applications

• X-Ray cameras
• Electron microscopy cameras
• MCP detector cameras
• iCCD / iCMOS cameras
• High speed cameras
• Night vision cameras

Features

• Efficiency up to 70% (1:1)
• Coupling of fiberoptic plates (1:1) or tapers
• Excellent resolution
• Removal of sensor cover glass by Proxitronic
• Virtually any sensor type can be used
• Additional phosphor, aluminium and ITO-layers possible

Product description

As a manufacturer of image intensifiers and low-light CCD cameras, Proxitronic has a profound experience in coupling fiber optics to CCD sensors. This means that almost any CCD camera can be equipped with an image intensifier to increase its sensitivity and to extend its spectral range into the UV range. In principle, the transmission of the screen-picture to the CCD can be done via a relay optic or via fiber optic coupling.

Fiber optic couplings
Transmission of the screen-picture to the image intensifier via a relay optic or via fiber optic coupling

As luminescent screens give off light distributed over an angle of 180° (halfspace, Lambert distribution), a relay optic transmits only a relatively small fraction of the complete light intensity. This means that for example a size 1:1 optic of the relative aperture 1:1.0 has a transmission of ca. 5%! For comparison, a high quality 1:1 fiber optic shows a transmission of up to 70%. This is why Proxitronic exclusively uses fiber optic couplings for low-light and high-speed cameras.

Whether a coupling is done with a 1:1 fiber optic block or a magnifying/minifying fiber optic taper depends on the active area of the image intensifier, the size of the CCD sensor and the application. The optic coupling implies the use of a coupling oil. On request, an optic glue can be used. The image intensifier is connected to the camera via a mechanic frame. Not only image intensifiers but also fiber optic plates or tapers can be coupled to virtually any CCD on the market.

Before a fiber optic is mounted to a CCD, it is necessary to remove the protective window of the CCD. Proxitronic has developed different procedures for this process and for a variety of many CCD types. Please note that the removal of the protective window implies the risk of damaging the CCD. This is why we recommend to supply the CCD without a protective window. Should you need for any reason some modification in the design, ask for an individual adaptation according to your wishes. Give us a call and we will find your personal solution.