Many applications require wavelength switchable light sources. For example, in visual applications, different types of objects may require different illumination wavelengths to achieve optimal contrast. The Goptica WheeLED wavelength switchable LED light source allows users to manually switch between LED light sources with different wavelengths and/or white LEDs.

There are multiple wavelengths and white LED options available for users to choose from. The selected LED is installed in the light source chassis in the factory. Then, users can switch between the installed LEDs by manually turning the handwheel.

Contains high numerical aperture non spherical collimating optical devices that can achieve precise collimation and high light flux. The aperture diameter of the optical device is 22mm. Other optional optical components can be added to achieve fiber/optical coupling and other functions.

The light source consists of a 5-foot cable with a connector that can be inserted into the light source on one end and two bare wire terminals on the other end. The light source can be driven by a Goptica LED controller or other LED controllers and current sources. Only one driving channel is needed, as only one wavelength is powered at any time. The light source is equipped with overcurrent protection to prevent potential damage during the switching process.

The optional focusing module can be installed in front of the LED collimator to focus light onto a small point, which is the image of the LED emitter.

You can also use an optional light guide adapter to couple the LED light into the light guide, as shown in the following figure.

How to order WheeLED?

The steps are as follows:

1) The WheeLED wavelength switchable LED light source consists of a main frame (P/N: WLS-22-A). This rack can add up to 9 LEDs;

2) Add up to nine (9) required LED emitters (P/N: WLS LED-xxxx-xx) to your WheeLED;

3) When checking out, mark the handwheel position for each wavelength in the remarks section. For example: position 1:470nm, position 2:365nm, position 6:530nm.

- Switchable wavelength/color

- Up to 9 LED emitters

- Wide range of available wavelengths: UV/VIS/NIR and white light

- Standard 22mm diameter collimating optical element

- Optional focusing module

- Optional fiber optic coupling optical components

- Optional optical coupling optical components

- Optional LED controller

- Universal light source

- Microscope Illuminator

- Fiber optic and optical coupling