Light and photography are one
Ringlights are ideal for macro and micro‐photography and can provide even and shadowless illumination. The ring is usually clamped around the camera lens or a stereo microscope's objective shroud.
These ringlights are studded with many light‐emitting diodes (LED) for uniform, highly efficient, cold light. LEDs have a rated life span of 100,000 hours and the light has daylight colour temperature. When compared side‐by‐side the OYK‐B144T is slightly blue in colour.
The two light sources differ in design but both have the same features. The OYK‐L72T has a dial type brightness adjuster whereas the B144T has a push button, step type adjuster. Both offer directional lighting via quadrant control. The diodes can be switched to use one, two, three or four quarters of the ring to achieve some shadowing effects. For stronger shadowing effects, consider a LED fibre light source, detailed lower down this page.
|Input voltage||100‐240V AC||90V‐264V AC|
|Brightness adjustable||0‐100% DIAL||0‐100% STEPS|
|Working Distance||40 ‐ 250mm||40 ‐ 250mm|
|Quantity of LEDs||74||144|
|Brightness||>15000mcd||20000Lux at height of 100mm|
|Colour of light||6500K||6400K|
Both units have Australian / New Zealand plug.
Warranty: 1 year
We have sold several hundred of these lights and only know of a couple of failures.
FIBRE OPTIC COLD LIGHT SOURCE
Very powerful and adaptable fibre light sources for macro and micro‐photography. OXD401 offers a very powerful 20W LED light, and has a stepless intensity adjustment. The fibre lights below will fit OXD401 model. Fibre lights from other manufacturers are sure to not fit properly and to the proper depths of the fibre light connection, which is the black, protruding fitting with three knurled knobs.
Notes: The OXD301 Halogen Cold Light Source has been discontinued. You can see the size comparison with the new model in the photo to the right. Replacement halogen bulbs are still available to purchase for use in the old system below. There are no replacement LED bulbs for the new units. CREE LED bulbs are soldered to the circuitry, and can't be replaced easily.
This item is the light‐source only; for a functioning unit a 'gooseneck' or fibre ringlight (OXD‐SG, OXD‐DG, OXD‐RL from the selection on this page) needs to be connected.
Voltages: 110 ‐ 240V 50/60Hz
Colour Temperature: 5600 degrees K ‐ daylight
Bulb: 24V 20W LED
Dimension: L230 x W74 x H130mm
discontinued OXD301 spare parts
If you require replacement bulbs for your old OXD301 light source we normally keep them in stock and can easily be purchased below using our online cart. If you require parts like circuitry, you can add them to the cart but you will need to follow up your order with some technical information, and possibly images of the required part. It is normally easier to contact us first if you need any spare parts other than bulbs.
FIBRE OPTIC LIGHTS
Note: These fibre lights require the fibre light source above (OXD401‐20).
Input end: ⌀ 16mm, length 13mm, with a flat area to prevent rotation.
Glass fibres with ground and polished ends enclosed in stainless steel sheathing. Optical fibre ⌀ 8mm.
Ringlights are especially designed for mounting on a dissecting microscope, but these lights are useful whenever a small specimen needs bright and shadow‐free illumination. The cable is pliable and the light needs to be held in position.
Goosenecks have a flexible cable that will remain in set position.
Sale price: OXD‐RL50 is too small to suit our microscopes. However, if they suit yours, pick up a real bargain with our now discounted price.
including double gooseneck
Designed for light microscopy but equally good for any application requiring focused, cold light illumination. 2000+ Lumens, 5000K colour temperature, high power white LED cold light source with a lamp life of 40,000 hours. Solid state intensity control is variable between 10 and 100%. Dual goosenecks feature focusable lenses for spot‐size adjustment. Base unit incorporates fan cooled universal power supply. Base is 7" W x 4.9" H x 8.8" D (178 x 125 x 224mm); Dual goosenecks are 23" (584mm) each; Weight is 7lb (3.2kg).
- High power white LEDs
- Consistent 5000K colour temperature
- Excellent light output uniformity
- Low (IR) heat
- Universal power supply (100‐240VAC, 50/60Hz)
- Low energy consumption
- Small footprint
- 2‐year warranty
- ETL, CE & RoHS Certification
- MADE IN THE U.S.A
MICROSCOPE HALOGEN BULBS
We stock a limited range of lamps and fuses which suit our microscopes and other light sources. They may also suit other suppliers' instruments. Particularly our fluorescent bulbs are a great buy and will work in many fluorescent microscopes.
We sell replacement bulbs for our microscopes and they may fit other microscope brands. We provide measurements and images to identify if our bulbs will fit your scope. It is not worth returning a single bulb because it does not suit, and our shipping charge makes ordering one bulb only economic when ordered with other goods.
Modern point light source bulbs for microscopes are available in two sizes, which are standard for 6V and 12V supplies. We have encountered a 6V bulb in the 12V size, but that is another manufacturer's idea on standards and we cannot help with these.
The brightness control on a microscope changes the voltage output and typically a 6V system will go to 7.8V. This over‐voltage produces a lot of extra brightness (but shortening lamp‐life) and brings the colour temperature closer to daylight. This was important when film was used, but with digital cameras colour temperature matters little. Colour can be adjusted by sliding a piece of white paper into the beam path and then select "white‐balance" in the camera's programme. Over‐voltage greatly reduces lamp life. Also, it is better if the voltage control is returned to low, prior to turning off, as there is a higher likelihood that filaments will fly off their pins when switched on while in over‐voltage.
Power consumption of any lamp is expressed in Watts. Any wattage lamp with the appropriate fitting and voltage can be used, but only to the maximum the instrument's transformer allows. Otherwise the transformer is overloaded and may burn out.
LED illumination in microscopy. LEDs use little power, furnish near white‐light and bulb life is long. Not all LEDs can be varied in intensity and none provide a point source which is a requirement for Köhler illumination. This gives compound microscopes best resolution and contrast. LED illumination for transmitted light microscopes is nonsense, and for stereomicroscopes, the popular LED ringlights are ideal for shadowless illumination. For other illumination from above using stereomicroscopes the main advantage of LED is that they are cheaper to produce.
|Cat. No.||Volts||Watts||Microscopes||Pin type|
|OBH006‐020T||6||20||OXJS500T, OXJS900T/ PHC, OXTL6445, OXJP302/304, OXJM904, OXJF series||G4|
|OBH006‐030T||30||OXJS500T, OXJS900T/ PHC, OXTL6445, OXJP302/304, OXJM904, OXJF series||G4|
OBH006‐030T is the same as Philips 5761 (6V/30W) G4 (Miniature 2‐Pin)
Catalogue numbers with a "R" suffix means that the a halogen bulb has a dichroic reflector.
OBH012‐010R has a pin distance of 5mm.
OBH012‐015R has a pin distance of 4.1mm.
Replacement Mercury UV lamp for fluorescence microscopy
Replacement cold fibre light bulb
Fuses are a safety device to protect an instrument from high currents. Frequently a burned out fuse indicates an internal problem. The strength of fuses is important; replacement fuses must match the manufacturer's recommendation. Strength of fuses is usually expressed in Amperes (A or Amps). Watt/volts = Amps. For a fuse W or V do not matter as a single figure, this needs to be in Amps.
Some fuses are designed for "fast blow" and others "slow blow". They will carry the letters F or S. Slow allows for short overcapacity for instruments which require more power during start-up. Fast is used where a fast action fuse is required to quickly protect a circuit from overvoltage.
OFF250-2 is suitable for OXJP300/ 2