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Does anyone know if LED lighting will work for a chrono?
The existing setups I've looked at require extension cords and big bulbs; overall it looks like a pretty cumbersome setup. I was thinking about a 12v battery pack and a few focused LED lamps or MR-16 Halogens mounted to the base unit, pointing up at the sky screens. I'd rather use LED lamps as they require less current and don't get quite as hot.
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LED lighting for an indoor chrono? Will it work?
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#2
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Posted 10 March 2008 - 09:55 AM
i'm not sure if LED will work but the IR units CED sells work great. Just make sure your sensors are isolated from any fluorescent lighting sources.
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Posted 10 March 2008 - 11:58 AM
I've not tried it, but somewhere I read that Brian and Robbie used a couple of flashlights. They were in a bind to chrono some loads for a match so they turned the screens from straight up to horizontal. One held the flashlights and one shot the guns.
As long as there is no fluorescent lighting nearby, it may well work. Shucks, I may go to an indoor range later this week to give it a try. The chrono on one tripod and the flashlights on another.
Bill
As long as there is no fluorescent lighting nearby, it may well work. Shucks, I may go to an indoor range later this week to give it a try. The chrono on one tripod and the flashlights on another.
Bill
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Posted 10 March 2008 - 12:40 PM
Bill,
I'd try it, but I don't have that many arms, or a long enough reach
I'm sure it works fine with incandescent bulbs or halogen bulbs, I just didn't know if there's a problem with LED flicker, or if it operates at some frequency that the sensors don't like.
BTW, I think I found my own answer.
It looks like Midway has a (new?) "Shooting Chrony" set of LED lamps coming out. I could swear it wasn't listed there last week while I was researching this stuff
Yoshidaex, thanks for your input on the infrared setups. If I were buying a new one, that's probably what I'd go for. However, I'm trying to get a working setup with an existing Competition Electronics (?) model.
I'd try it, but I don't have that many arms, or a long enough reach
I'm sure it works fine with incandescent bulbs or halogen bulbs, I just didn't know if there's a problem with LED flicker, or if it operates at some frequency that the sensors don't like.BTW, I think I found my own answer.
It looks like Midway has a (new?) "Shooting Chrony" set of LED lamps coming out. I could swear it wasn't listed there last week while I was researching this stuff
Yoshidaex, thanks for your input on the infrared setups. If I were buying a new one, that's probably what I'd go for. However, I'm trying to get a working setup with an existing Competition Electronics (?) model.
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Posted 10 March 2008 - 12:42 PM
They should work as long as they're bright enough. The only reason you can't use fluorescent lights is because they cycle on and off too rapidly for the human eye to pick up on it.
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Posted 10 March 2008 - 04:49 PM
LED's don't typically flicker (over-driven, scanned, christmas lights, and other AC-direct-drive things excepted), which is the big problem with fluorescent lights, but you may have to match the response curves of the LEDs and the phototransistors to get a usable signal. White is probably the best to start with.
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Posted 10 March 2008 - 07:30 PM
A friend of mine bought 4 battery powered LED lights that are for closets, etc. The have double sided foam tape on them and he stuck them on the screens on his Beta and it works just fine inside. I think the lights were like 3 or 4 bucks at Family Dollar or a store like that.
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Posted 11 March 2008 - 05:45 AM
SLM, on Mar 10 2008, 10:30 PM, said:
A friend of mine bought 4 battery powered LED lights that are for closets, etc. The have double sided foam tape on them and he stuck them on the screens on his Beta and it works just fine inside. I think the lights were like 3 or 4 bucks at Family Dollar or a store like that.
Very good to know. That's even easier than the setup I was planning.
Thanks!
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Posted 13 March 2008 - 07:23 AM
A few years ago I was helping my brother in law with a science project and we needed to use a chronograph at night. Using a shooting chrony we simply rolled a piece of white cardboard into a loop set the chrony over the seem, inside the loop, on a stool and placed a Makita (90 degree) flash light next to it pointed up, it worked perfect.
This post has been edited by jmorris: 13 March 2008 - 07:23 AM
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