【convoy】H4 and B35AM options are updated

[PiercingTheDarkness]

Hmmm, okay, no good for me then. I need something for 300-350m for my store, I was hoping the L21B would be capable, but maybe not.

I wonder if Simon would ever consider the Vscel IR lasers. That’s entirely unfamiliar territory for me though.

[Simon_Mao]

@m47mu74nt

Hey! just noticed the presale for 940nm IR S2+ (10.81€ 32% de réduction|Lampe De Poche Convy S2 + Avec Led Ir, Lampe Torche Infrarouge 18650 Nm 940nm - Torches Et Lampes De Poche - AliExpress)
I will take it as soon as it is available :face_with_monocle:
Will it work with lighted metal switch ? (3.78€ |Kit de remplacement de boutons en silicone, bouton en acier inoxydable, interrupteur d'éclairage, convient pour (gris et noir lt+), C8, C8 +, S21A | AliExpress) : is the driver compatible? and the body ?

yes, suitable .

[Simon_Mao]

@Pilotboy

Is there a way of removing the AR coating from the glass on my convoy s2+?

I have the convoy s2+ with the 219b sw45k emitter and I noticed that when I remove the glass, the tint looks slightly better. When lighting up white objects with the glass in place they look a little green, and I suspect it has to do with the AR coating.

i have normal glass lens ,
i can send you some for free in your next parcel if you need it

[Rat]

Simon
Convoy S12 with IR LED,infrared 850nm when will they be available ?
Can you make me a Z1 850nm also?

“S12 IR”: https://www.aliexpress.com/item/1005003202778007.html?spm=a2g0o.detail.1000060.1.503170efEo8FCv&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.169870.0&scm_id=1007.13339.169870.0&scm-url=1007.13339.169870.0&pvid=eddd76e7-aaf3-4525-a46c-17b4465fcf75&\_t=gps-id:pcDetailBottomMoreThisSeller,scm-url:1007.13339.169870.0,pvid:eddd76e7-aaf3-4525-a46c-17b4465fcf75,tpp_buckets:668%232846%238110%231995&&pdp_ext_f={"sceneId":"3339","sku_id":"12000024639315134"}

thx

[Barkuti]

@Pilotboy

Is there a way of removing the AR coating from the glass on my convoy s2+? I have the convoy s2+ with the 219b sw45k emitter and I noticed that when I remove the glass, the tint looks slightly better. When lighting up white objects with the glass in place they look a little green, and I suspect it has to do with the AR coating.

@max

Lots of previous posts on how to remove AR coatings. One of which is what Lightbringer just mentioned. I advise you to search.

Are you listening, Simon? I hope you are.

Many people dislikes anti-reflective coatings. I dislike them too. This is because the standard anti-reflective coating used for flashlight lenses is λ/4 MgF₂ centered at 550nm, which being centered at 550nm, a frequency of green, boosts this frequency and those around it more than the remaining frequencies in the visible spectrum. This can be seen in the following graph chart at Edmund Optics:

In the above graph it can be clearly seen how the λ/4 MgF₂ 550nm curve is lowest around 550nm, and goes higher (higher reflection, or less effective) around it. Therefore, the gains of this AR-coating are unbalanced and noticeably screw up the tint and even the CRI of emitters to some extent.

What does this mean? Many customers would buy plain lenses anytime, lenses without anti-reflective coating. Customers of high-CRI lights and emitters, namely.

Hope this is of service.

[trakcon]

@Pilotboy

@Lightbringer

Scrub, scrub, scrub.

Seriously.

With what? And how do I not scratch it?

I use Sunshine Cloths to polish the coatings off.

[id30209]

I am using JoshK "Delete Green" paint on all Convoy lenses.

Well not all, i have a few without coating.

[JaredM]

I agree and am willing to buy extra lenses that are either uncoated or that have a green coating. Tint is so important and noticeable to most users while transmission losses are not.

To make things worse, recent AR coatings have been causing magenta artifacts around the periphery of the beam. This is terrible.

Please offer uncoated glass, especially for hi cri lights.

From a cost perspective, I’d rather put the money into better (clearer) glass than coatings.

[Lightbringer]

Ooh, UCL glass would be soooooo nice!

[Simon_Mao]

@Rat

Simon
Convoy S12 with IR LED,infrared 850nm when will they be available ?
Can you make me a Z1 850nm also?

“S12 IR”: 30.43€ |Convoy S12 mit IR LED, infrarot 850nm 940nm|Taschenlampen| - AliExpress

thx

it needs 17mm to 22mm adapter for the 17mm driver if installing the 850nm LED in Z1,
it’s better if i can find a IR LED which can bear 4.5A current

[Simon_Mao]

@Barkuti

@Pilotboy

Is there a way of removing the AR coating from the glass on my convoy s2? I have the convoy s2 with the 219b sw45k emitter and I noticed that when I remove the glass, the tint looks slightly better. When lighting up white objects with the glass in place they look a little green, and I suspect it has to do with the AR coating.

@max

Lots of previous posts on how to remove AR coatings. One of which is what Lightbringer just mentioned. I advise you to search.

Are you listening, Simon? I hope you are.

Many people dislikes anti-reflective coatings. I dislike them too. This is because the standard anti-reflective coating used for flashlight lenses is λ/4 MgF₂ centered at 550nm, which being centered at 550nm, a frequency of green, boosts this frequency and those around it more than the remaining frequencies in the visible spectrum. This can be seen in the following graph chart at Edmund Optics:

In the above graph it can be clearly seen how the λ/4 MgF₂ 550nm curve is lowest around 550nm, and goes higher (higher reflection, or less effective) around it. Therefore, the gains of this AR-coating are unbalanced and noticeably screw up the tint and even the CRI of emitters to some extent.

What does this mean? Many customers would buy plain lenses anytime, lenses without anti-reflective coating. Customers of high-CRI lights and emitters, namely.

Hope this is of service.

To solve this problem, I will change the blue ar-coating or the red into a green ar-coating. how do you think?

[Rayoui]

@Simon Mao

To solve this problem, I will change the blue ar-coating or the red into a green ar-coating. how do you think?

That would be great! I’d definitely buy a bunch of those.

[JaredM]

Exchange red for green, if this is our only option.

[id30209]

@Simon Mao

To solve this problem, I will change the blue ar-coating or the red into a green ar-coating. how do you think?

YES!

[Barkuti]

@Simon Mao

@Barkuti

…

Many people dislikes anti-reflective coatings. I dislike them too. This is because the standard anti-reflective coating used for flashlight lenses is λ/4 MgF₂ centered at 550nm, which being centered at 550nm, a frequency of green, boosts this frequency and those around it more than the remaining frequencies in the visible spectrum. This can be seen in the following graph chart at Edmund Optics:

In the above graph it can be clearly seen how the λ/4 MgF₂ 550nm curve is lowest around 550nm, and goes higher (higher reflection, or less effective) around it. Therefore, the gains of this AR-coating are unbalanced and noticeably screw up the tint and even the CRI of emitters to some extent.

What does this mean? Many customers would buy plain lenses anytime, …

To solve this problem, I will change the blue ar-coating or the red into a green ar-coating. how do you think?

Eeeh? How about no?

Above I was speaking about the λ/4 MgF₂ 550nm, a coating centered in a frequency of green (in the middle of the 400-700nm visible spectrum), which is a common low cost coating. This coating gives lenses a very subtle purplish colour, this is most noticeable when a source of light is seen reflected over its surface, makes it look purple. I am right now looking at an incandescent lightbulb reflected over the lens of an S21A I have at hand, and the bulb indeed looks purplish over the lens.

People is complaining about the effects of the standard anti-reflective coating in flashlight lenses. This is because the anti-reflective coating changes the tint of the beam, raising its Duv because of somewhat more green output. We already have enough green in most production led emitters, this is not what we want.

You said “I will change the blue ar-coating or the red into a green ar-coating”, but what does this mean?

If you change the anti-reflective coating for a different one without knowing the actual effects in the beam tint, how is this going to be a solution?

Plain or uncoated lenses are a known solution. 100% sure.

[id30209]

Yeah, what Barkuti said. If knowingly new AR coating will eliminate Duv raise then it’s ok to change process, otherwise plain and simple uncoated lenses are just perfect.

[Rayoui]

Ar coatings that show green reflections will lower Duv. If that’s what Simon means, then this would be an even better solution than uncoated glass.

[Barkuti]

@Rayoui

Ar coatings that show green reflections will lower Duv…

Are you really sure about this?

If Simon wants to endorse some new product, I can understand. But from the perspective of a buyer, a new product must provide a useful, advantageous reason to be.

I could for example say that, if aiming for lenses with a double coating, one could be set at 475nm (at the cyan dip the usual blue pumped white leds have), and the other could be centered at 650nm (to boost reds). I've checked a few led spectograms around here to conclude this (1, 2, 3 and 4). This would cover the visible spectrum a lot better, while a double coating may still be affordable.

Still, plain or uncoated lenses are a sure win. They're also the cheapest ones so, how about some uncoated lenses? ;-)

[JaredM]

Ultra clear (low iron) glass without coating would be my preference as well.

But again, if an AR coating(s) must be used, make sure that the reflections are green and NOT red/pink/purple.

[Rayoui]

@Barkuti

@Rayoui

Ar coatings that show green reflections will lower Duv…

Are you really sure about this?

If Simon wants to endorse some new product, I can understand. But from the perspective of a buyer, a new product must provide a useful, advantageous reason to be.

I could for example say that, if aiming for lenses with a double coating, one could be set at 475nm (at the cyan dip the usual blue pumped white leds have), and the other could be centered at 650nm (to boost reds). I’ve checked a few led spectograms around here to conclude this (1, 2, 3 and 4). This would cover the visible spectrum a lot better, while a double coating may still be affordable.

Still, plain or uncoated lenses are a sure win. They’re also the cheapest ones so, how about some uncoated lenses?

Yes, I’m sure. The advantage would be higher transmittance than uncoated glass and improved tint (lower Duv).

I have confirmed myself with my own examples of “green” AR coated glass that it does indeed slightly decrease Duv.

Price shouldn’t really be a concern. Simon’s current AR coated glass for the C8 is $3.94 for a set of two. I’d gladly pay a few extra cents for an improved coating. That said, clear uncoated glass would also be preferable to the currently available AR coated offerings.