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Old Apr 30, 2002, 08:18 PM
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RPatrick's Avatar
Hurst, Texas USA
Joined Jan 2002
701 Posts
My Helmet Mounted Binocular project

It's complete!

HMMS V1.0 (Helmet Mounted Magnification System)

The binoculars are attached to the helmet to allow easy transition from launch to long range vision. They are the focus free type which allow hands off use at any range.

This helmet can be alot of fun. I have already logged two successful flights using it. It is amazing how far away my plane can be flown using this thing!

RPatrick
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Old Apr 30, 2002, 08:35 PM
ὅπερ ἔδει δεῖξαι
Gerald's Avatar
Joined May 2000
3,335 Posts
I think I might need one of those to see some of my planes from SHORT distance.
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Old May 01, 2002, 01:15 AM
Registered User
Alexandria, VA
Joined Feb 2002
259 Posts
needs safety sticker

Caution: Objects in HMMS are farther than they appear
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Old May 01, 2002, 01:41 AM
All under control, Grommit!
leccyflyer's Avatar
United Kingdom, Aberdeen
Joined Sep 2000
12,550 Posts
A nice modification would be a swivel mount on the binoculars. That would make the HMMS v1.1 a true multi-functional device and greatly increase it's appeal in more crowded semi-urban environments. By turning the binoculars through 180 degrees the system could then also be used for flying really large models close in on a very small field.

Brian
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Old May 01, 2002, 06:17 AM
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RPatrick's Avatar
Hurst, Texas USA
Joined Jan 2002
701 Posts
For launch or close in flying, the binoculars can be propped up by the "bill" of the helmet so that they are not in use. Just pull forward, flip up, and push. Then to use them again just flip them up, pull forward and then lower them down and they will slide into place.

The length of the cord is set to place the binoculars at just the right level for my eyes, but could be made adjustable.

RPatrick
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Old May 01, 2002, 07:30 AM
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stephen.s1's Avatar
North Branford, CT
Joined Jun 2001
690 Posts
Nice idea. Focus free?? Never heered of such a thing in all my born daze.

Tell more about that feature please.

Cheers
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Old May 01, 2002, 08:17 AM
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RPatrick's Avatar
Hurst, Texas USA
Joined Jan 2002
701 Posts
Focus Free Binoculars

They are made by Bushnell. The feature is called "Perma-focus".

They are designed to be used for viewing fast moving sporting events. In my opinion, this includes flying RC planes!

When I look through them I can clearly see both near and far objects without adjusting anything. I don't know exactly how they work, but its amazing. I think the technology is similar to what is used in wide angle focus free photography.

One note, if your vision is not 20 / 20, you will have to use your glasses or contacts to see well with the Perma-focus system.

RPatrick
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Old May 01, 2002, 10:07 AM
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Sparky Paul's Avatar
Palmdale, CA
Joined Oct 2000
13,371 Posts
I've done something similar with a Camcorder:
http://www.angelfire.com/indie/aeros...hotography.htm
During lulls in the flying it is possible to zoom the lens a bit...
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Old May 01, 2002, 01:39 PM
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RPatrick's Avatar
Hurst, Texas USA
Joined Jan 2002
701 Posts
Quote:
Caution: Objects in HMMS are farther than they appear
You got that right!

It is easy to lose track of how far away the plane is and flip up the binoculars too early... Whoops...! This is why I always have the plane flying straight and level directly back to me whenever I flip them up.

Also, when using the helmet I cannot let the plane slip out of the field of view. Once lost I would be scrambling to find it again, hopefully before it is too late...!

Paul - Great idea with the eye level viewfinder

RPatrick
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Old May 01, 2002, 04:03 PM
It's just PLANE silly!
balsaman's Avatar
Ontario
Joined Jan 2002
915 Posts
ahhhh.. e-zoners with too much time on their hands.

Very cool none the less.

Eric
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Old Mar 04, 2003, 02:33 PM
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HIGHFLYER99's Avatar
North East
Joined Nov 2001
1,198 Posts
Quote:
Originally posted by RPatrick
You got that right!

It is easy to lose track of how far away the plane is and flip up the binoculars too early... Whoops...! This is why I always have the plane flying straight and level directly back to me whenever I flip them up.

Also, when using the helmet I cannot let the plane slip out of the field of view. Once lost I would be scrambling to find it again, hopefully before it is too late...!

Paul - Great idea with the eye level viewfinder

RPatrick
Patrick, what is the power of these binoculars you are using?
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Old Mar 04, 2003, 02:59 PM
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William A's Avatar
Tacoma,WA USA
Joined Jun 2001
3,902 Posts
Quote:
Originally posted by flyandcrash
Patrick, what is the power of these binoculars you are using?
And 'field of view' ?
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Old Mar 04, 2003, 03:19 PM
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RPatrick's Avatar
Hurst, Texas USA
Joined Jan 2002
701 Posts
Bushnell Binocular Specs

P R O D U C T I N F O R M A T I O N




SPECIAL FEATURES :

- Fully Coated Lens Coating
- Fold Down Eyecups
- Wide Angle

* Note: the PermaFocus models are designed for viewing distant objects. The close focus limit is subjective, and dependent on the user's eyesight.

MODEL #
17-3507

MAGNIFICATION X OBJECTIVE LENS
7x35
FOCUS SYSTEM
Focus Free
PRISM SYSTEM
Porro
FIELD OF VIEW ft@1000yds/m@1000m
578/193
EXIT PUPIL (mm)
5.0

WEIGHT (oz/g)
22.5/638

ADAPT FOR TRIPOD
Yes
GREAT FOR
Stadium Sports, Outdoor/Nature, General Use/Vacation
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Old Mar 04, 2003, 03:32 PM
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FX1SUB's Avatar
NJ
Joined Mar 2002
788 Posts
Aw c'mon take the next step
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Old Mar 04, 2003, 03:48 PM
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HIGHFLYER99's Avatar
North East
Joined Nov 2001
1,198 Posts
MOUNTING

I HAVE A PAIR OF LOW POWER binocs that are would be just right to keep track of my plane when I want to go for altitude records and snap some pics way up. But I can't fashion a homemade way to keep them on my face.
I wish there were a such thing and binocular goggles as I'm not asking for much magnification power at all. In fact, too much would be detrimental.
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