|
 Click on the links below to find out more information.
If you want to select wavelength(s) - VERY FAST, the DeltaRAM X™ microscope illumination system allows you to get any desired wavelength of light from 250 to 650 nm in a millisecond under computer control.
The patented DeltaRAM X™ MI comes complete with everything you need: regulated power supply, starter, high intensity light source, and DeltaRAM X™ wavelength control. Light is coupled to your scope via high efficiency liquid light guide. All we need to know is the make and model of the scope that you intend to use and whether you will attach it to a microscope direct or to an epi port, so that we can provide the best adaptor.
Back to top.
When a broadband light source with virtually a point source is required as for illuminating a monochromator slit, a small high-pressure xenon arc lamp has no peer. The intensity of an arc lamp is extremely high and reasonably continuous throughout the region from 240 to 1200 nanometers – more than enough for microscope illumination.
While the DeltaRAM X™ MI offers the ultimate in speed, its intensity is great as well. The essential ingredient of intensity is the unique light source.
At the heart of virtually every OBB Light Source is a proprietary on-axis ellipsoidal reflector. Our reflectors collect up to 70 % of the radiant energy from the arc lamp – vs 12 % for typical condenser systems. The ellipse literally wraps around the arc lamp, collecting 5 to 6 times more output power than from a conventional system.
The arc source is located at one focus of the ellipse, and the radiation is reflected by the ellipse to the other focus. Since the light is brought to a focus by reflection rather than refraction (through a lens), there are no losses from absorption or lens-surface back-reflection. Since it collects light more efficiently, and focuses it more effectively, an OBB Light Source produces up to 11 times more power to illuminate the narrow slit of a monochromator – typically 1 mm - than other light sources.
Our elliptical reflectors are proprietary in design and the coating used. They are NOT cheap electro-formed reflectors, which can distort with heat, and can degrade within months. Our proprietary design ensures that distortion of the critical ellipsoid does not occur as the lamp reaches its operating temperature. This ensures thermal stability of the focus guaranteeing that the light is delivered through the monochromator slit. The coating ensures reasonably long operating life – typically 2-3 years.
While conventional lamp housings resemble chimneys emitting ozone and requiring cumbersome venting, the OBB compact high intensity light source has a sealed lamp housing that requires no ozone venting.
The lamp housing can accommodate both xenon and mercury lamps, just choose the lamp(s) that best meet your need.
|
Lamp power capacity: 75 to 100 watts
Height: 100 mm (3.9 inches)
Width: 100 mm (3.9 inches)
Length: 210 mm (8.3 inches)
Weight: 1.9 kg (4.2 pounds)
Window diameter (D): 65 mm |
 |
Back to top.
The DeltaRAM X™ MI comes with a 75 W compact arc xenon lamp as standard. The xenon gas used in the lamp provides continuous spectra from 250 nm to 1,200 nm of course at varying intensity (refer to spectral output graph).
Back to top.
Lamp power supply is a highly regulated DC unit that provides very stable power for xenon lamp. While stability is important for all applications, it is particularly important for imaging.
Input (user selectable): 105-120 V/60 Hz or 210-240 V/50 Hz
Power rating: 0 to 150 watts
Operating voltage: 14 to 24 volts
Operating current: 0 to 8 amps
Pre-Ignition voltage: > 85 volts
Ripple at maximum current: < 10 milli-volts
Stability after warm-up: 0.2 %
Line voltage regulation: 0.1% current variation for 5 volts line change
Load regulation: 0.1 % current variation for 50 % change in load impedance
Dimensions: 4.5 X 10.75 X 12.5 inches, 11.5 X 27.3 X 31.8 cm
Weight: 12 pounds, 5.45 kg
Ignition noise can disrupt, or even destroy, sensitive equipment in the vicinity of an Arc Lamp during start-up. This can be quite a concern in a crowded lab environment. OBB Engineers introduced an igniter that is integrated onto the lamp housing. This design provides an effective EMI shield which contains the EMI pulse, providing a safer and more convenient environment in which to do your research.
Igniter Dimensions: 3.96 X 3.96 X 1.55 inches, 100.58 X 100.58 X 39.51 mm
Back to top.
Represents the next bold step in the evolution of light sources. The compact, proprietary (patented) single monochromator design permits the selection of any single wavelength in two milliseconds or less. This means that the speed of the wavelength change is independent of proximity. For example to change from 300 nm to 650 nm takes the same time as to change from 300 nm to 320 nm. If you want to change between 300 nm – 500 nm – 340 nm and 600 nm, it can be done faster than 8 milliseconds. Obviously you may want to pause at the individual wavelengths for some period of time – which is for you to define. The DeltaRAM X™ minimizes the downtime between measurements.
The DeltaRAM X™ is ideally suited for multi-wavelength applications as well as excitation scanning. It is easily controlled via a single low voltage signal line, computer interface and basic software is included. DeltaRAM X™ delivers powerful excitation wavelength from 250 - 650 nm under synch-lock computer control. Synch-lock control, locks the DeltaRAM X™ monochromator to the camera exposure or frame readout. The DeltaRAM X™ saves you money by not requiring purchase of additional excitation filters for each dye you wish to use. Synch-lock allows accurate timing to be retained between camera and illuminator.
Systems not synch-locked can be plagued with synchronization problems or latency due to operating events or user clicking events. Try this in another imaging software package click and drag a window either the illuminator will stop moving, or images will stop being acquired until the mouse button is released. This does not happen with OBB's sync lock!
The DeltaRAM X™ comes complete with a computer-controlled shutter to prevent photo bleaching of sample. The spectral bandwidth is continuously adjustable from zero to twenty-four nm.
Back to top.
Excitation wavelength range—250 - 650 nm
-
Wavelength selection speed < 2 milliseconds
-
Beam uniformity < 5%
-
Low stray-light 10-4
-
Wavelength accuracy +/- 1 nm
-
15 mW of optical output at 10nm bandwidth
-
Wavelength bandwidth adjustable from 0 - 24nm
-
Two meter Liquid Light guide and adapter for user specified fluorescence microscope either direct or epi port coupled
Back to top.
The DeltaRAM X™ MI comes complete with USB 1.1 compatible interface, basic control software package, Windows 2K, XP compliant.
Back to top.
|
Click here to select products and receive a quote within 2 business days |
 |
Call us or have an OBB Representative call you to help answer all of your questions |
|
