Specifications

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LEDs and Lenses
Let there be LEDs
50 years ago, the LED was leading edge technology. Today it comes
as an optional, simple to replace light source for the new Keeler Slit
Lamp, which comes with a Halogen Lamp as standard, but offers
the powerful LED module if that’s your preferred light source.
Our LED has been carefully selected for its performance, with a
colour temperature of 3,800k, and a truly homogeneous light
patch. The imperceptible increase in blue light levels will increase
efficiency when fluorescence is required and give increased detail
to small structures, such as the endothelium.
Most halogen lamps have a life of around 100 hours. Typically, a
Keeler LED will provide 10,000 or more hours, giving you 100 times
the life of your halogen lamp. A small additional initial investment
will reap significant lifetime cost benefits.
Keeler Lenses and Optics
As you’d expect from Keeler, brilliant stereoscopic imagery, high
chromatic correction and crisp clarity come as standard with the
new Slit Lamp. We use high anomalous dispersion glass within the
15 element optical system to achieve this.
Combining top quality materials with our superior optical design
enables us to achieve remarkably low field curvature and low
optical distortion levels.
And to further enhance the optical performance, all glass to air
surfaces are multi-layer coated to improve light transmission.
Slit Lamps | New Keeler