The Domus THOR-PRO-32 Lens is a drop-in optical accessory forthe 32W THOR-PRO head available as a honeycomb louvre or inpurple, red, blue, green oryellow.

It publishes a voltage. It is a disc.

• The record carries voltage = 24V and ac_dc = DC on apassive optical accessory. A lens has a diameter, a material and atransmission.
• Measured across the ten optical accessories in this catalogue, ten publish at leastone electrical field and two publish a voltage thisone and a PAR38 reflector.
• IT IS THE SAME TEMPLATE DEFAULT this programme has found on brackets, mounting plates, rodkits, exit-sign housings and panel frames. Harmless on a page a person reads; misleading in a filter, where someone looking for 24V components would be shown a piece ofglass.
• WE HAVE NOT REPEATED THOSE FIELDS HERE.

At 32 W the honeycomb is close to mandatory in an occupied space

• The honeycomb is an anti-glare louvre rather than a coloured lens a grid of cellsthat blocks light leaving at wide angles while passing the central beam.
• THE 32 W HEAD IS THE BRIGHTEST IN THE FAMILY, AND IT IS USUALLY MOUNTED HIGH AND AIMEDDOWN A LONG SIGHTLINE. That is precisely the arrangement that puts a very bright sourcein somebody’s eye-line from somewhere in the room.
• A NARROW REFLECTOR MAKES IT WORSE, NOT BETTER. Concentrating the beam alsoconcentrates the source, so the 15 and 24 optics that suit a 32W head are exactly the ones thatcreate the harshest direct view.
• SO ON THIS HEAD, PLAN A BLACK BAFFLE AND A HONEYCOMB TOGETHER FROM THE OUTSET not as a remedy after complaints.

Coloured lenses on the largest head

A coloured lens absorbs every wavelength except the one it passes; it does not convert whitelight to colour. ON A 32 W HEAD THAT MAKES THE DEEP COLOURS ACTUALLY VIABLE there is enough light that a red or blue filter still produces a usableeffect but you are running the family’s largest head to produce a modestoutput. For anything permanent, a coloured LED source produces its colour at the sourceand is far more efficient. A lens is for a temporary effect on fittings alreadyinstalled: a seasonal display, an event, a promotional period. Green and yellow lose least; red and blue lose most.

Nothing is published about the optics themselves

No datasheet, no transmission figures, no output loss for the honeycomb or any colour, nomaterial, and no cut-off angle. THE CUT-OFF ANGLE IS THE HONEYCOMB’S DEFININGSPECIFICATION it is the angle beyond which the source is no longer visible, andon a 32W head mounted at 6 metres it is the number that decides whether the louvre solves theproblem. The 32W head also publishes no lumen figures anywhere, so neither thestarting output nor the loss can be stated. WE HAVE NOT ESTIMATED EITHER. Tell us the mounting height, the viewing positions and the throw, and we will get both fromDomus before you order.

What is published

Where it works

• 32W heads in occupied spaces honeycomb, from the outset.
• Atria and showrooms with long sightlines.
• Temporary colour on installed fittings.
• Not without a black baffle too plan both together.
• Not to a lux target neither figure is published.

Specifying it

Drop-in optical accessory for THOR-PRO-32 heads. Honeycomb anti-glare louvre, or purple, red,blue, green or yellow lens. ITS RECORD PUBLISHES A VOLTAGE AND A DC SUPPLY ON A PIECE OF GLASS two of the ten opticalaccessories in this catalogue publish a voltage and all ten publish some electrical field, the sametemplate default found on brackets, plates and panel frames. AT 32 W THE HONEYCOMB IS CLOSE TOMANDATORY IN AN OCCUPIED SPACE: the brightest head in the family, usually mounted high and aimed down along sightline, is precisely the arrangement that puts a very bright source in somebody’s eye-line and anarrow reflector makes the direct view harsher, not softer. PLAN A BLACK BAFFLE AND A HONEYCOMB TOGETHERFROM THE OUTSET.

Supplied and supported by Lights For You.

Questions

Why does a lens have a voltage?

It should not. Its record publishes voltage 24V and ac_dc DC on a passive optical accessory a lens has a diameter, a material and a transmission. Across the ten optical accessories in this catalogue, all ten publish at least one electrical field and two publish a voltage; this is one of the two. It is the same template default found on brackets, mounting plates, rod kits and panel frames.

Does it matter?

On a page a person reads, not much. In a filter it does someone looking for 24V components would be shown a piece of glass. We have not repeated those fields here.

Is the honeycomb necessary at 32W?

Close to mandatory in an occupied space. The 32W head is the brightest in the family and is usually mounted high and aimed down a long sightline, which is precisely the arrangement that puts a very bright source in somebody’s eye-line from somewhere in the room.

Does a narrow reflector help with that?

No it makes it worse. Concentrating the beam also concentrates the source, so the 15 and 24 degree optics that suit a 32W head are exactly the ones that create the harshest direct view. Plan a black baffle and a honeycomb together from the outset rather than as a remedy after complaints.

Are coloured lenses viable on this head?

More so than on the smaller ones. There is enough light that a red or blue filter still produces a usable effect, where a 15W head filtered to deep red might be too dim. But you are running the family’s largest head to produce a modest output for anything permanent, a coloured LED source produces its colour at the source and is far more efficient. A lens is for a temporary effect on fittings already installed.

What is the honeycomb’s key specification?

The cut-off angle the angle beyond which the source is no longer visible. On a 32W head mounted at 6 metres it is the number that decides whether the louvre solves the problem, and it is not published anywhere.

Can you tell me the output loss?

No, and we have not estimated it. No transmission figures are published for the honeycomb or any colour, and the 32W head publishes no lumen figures anywhere either so neither the starting output nor the loss can be stated. Tell us the mounting height, the viewing positions and the throw and we will get both from Domus before you order.