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I was about to buy one of those a few months ago so I asked a friend about his experiences with one in a regular car. He was in an accident and said the docs were digging shards of glass from his face off and on for over a year. The glass was not tempered.

 

I checked with the seller of the Mirrors for Sevens and the Wink mirror he uses is also plain glass so I decided not to use it.

 

I use the Caterham mirror and added SPA side mirrors. I have a problem judging distances in the SPA convex mirrors and find myself using the flat center mirror when I need to know how close something is.

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Since the mirrorsforsevens panoramic mirror is my product, I feel it appropriate to address a couple of points about automotive rear view mirrors and tempered glass. I am not posting this as a solicitation for my product. If I am crossing any lines here, I encourage the site administrator(s) to promptly remove this post.

 

The mirrorsforsevens product does not use tempered glass. Most original equipment manufacturer's rear view mirrors do not use tempered glass. The windscreen mirror supplied by Caterham is not manufactured with tempered glass. With a few exceptions, most after market rear view mirrors do not use tempered glass either. For that matter, the windscreen in your car is not tempered, however the side and rear windows are.

 

The problems with glass shards being liberated in an impact are generally handled by using an two-sided adhesive tape or polymer substrate to keep the glass fragments in place after breakage. This is the method used in the mirrorsforsevens product. Windscreens use a similar approach by laminating untempered glass on both sides of a plastic sheet. This plastic sheet also provides a barrier to prevent ingress of flying objects and egress of human bodies in an accident.

 

The reason that tempered glass is not used is purely optical. The surface of tempered glass becomes wavy and rough during the tempering process. When the reflective coating is applied it amplifies the optical irregularities in the surface. This problem becomes more pronounced with first surface mirrors commonly used to prevent glare from the headlights of following cars.

 

I do not know what type of glass is used in the "Wink" brand mirror so I cannot comment on the incident Skip is referring to. The mirrorsforsevens mirror is not a "Wink" brand mirror, although it uses a similar multi-panel technique to provide a panoramic view.

 

As for Rob's concern about glare from following cars; The mirrorsforsevens panoramic mirror does not have any anti-glare properties. It is a simple second surface mirror similar to those provided by Spa Designs and others. Although I find the glare factor at night to be acceptable, some people may not. Since most of us drive our Sevens during daylight hours, the intent of the design was to make daylight driving safer and more enjoyable.

 

 

 

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bsimon,

 

Sorry, I made the assumption that yours was a Wink brand mirror. My friend had the Wink brand. I don't know what type of glass it was nor how the glass was attached to the frame, he just mentioned that it wasn't tempered and he got a face full of embedded glass from the accident.

 

Skip

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No problem Skip,

 

Just out of curiosity, did your friend come into direct contact with the Wink mirror during the shunt or was he hit with flying glass projectiles from the mirror as it disintegrated? I'm asking because I have a very large Wink brand mirror in one of my everyday vehicles. Maybe it's something I should be concerned about.

 

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No problem Skip,

 

Just out of curiosity, did your friend come into direct contact with the Wink mirror during the shunt or was he hit with flying glass projectiles from the mirror as it disintegrated? I'm asking because I have a very large Wink brand mirror in one of my everyday vehicles. Maybe it's something I should be concerned about.

My understanding was that he did a face plant into the Wink mirror. This was in a Nissan Sentra SE-R. I will ask him for more details next time I talk to him.

 

Skip

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  • 1 year later...

During LOG 29--when I put 515 miles on my Caterham in three days, despite being "parked" for most of Saturday--I realized driving on I-459 to Barber MSP that my vision to "lane-change" to the left was inadequate, since I hadn't packed the side screens with mirrors. I discussed mirrors and options with several fellow LSIS drivers there, and did an on-line search for some options and opinions. Bottom line--I got my multi-panel Mirrorsforsevens installed today and took the car out for a test/adjustment ride. I think the Mirrorforsevens is an excellent product in terms of increasing my driving safety.

 

No, I haven't driven at night, and it will probably be some time before I do. I've only had the car out at night twice in the 19 months that I've owned it. Also, I will probably discount any serious worries about shattered glass in a crash--I hope to avoid any impact--and if I worried too much about crashing, I'd have to drive something bigger with air bags.

 

Anyway, just my opinion, FWIW!

 

Taber

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For the record, I installed one of Bob's Mirrors for Sevens not too long after my last post on this in 2007. For awhile I kept the center and side mirrors on, then removed the side mirrors and a couple of months later removed the center mirror.

 

The Mirrors For Sevens is the only mirror on my car now. It took awhile to get used to but I won't be going back to regular mirrors. I've driven it at night a few times and did not have a problem with glare from cars behind me. The mirror is so short, a slight tilt of the head will get the reflections out of your eyes.

 

I sometimes wonder if I will get stopped by the police for not having side mirrors, I believe one on the driver side is required here in Colorado. "But officer, I actually have four mirrors on my car."

 

Skip

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Taber: does the Mirrorforsevens eliminate the need for mirrors on the side screens or windshield mounted mirrors? How wide is your field of vision, can you see both sides of the car as well as directly behind ? I recently replaced the windshield on my Caterham and am not happy with any of the mirrors I've found to install on the new windshield. I always hated the standard Caterham windshield mirror because of its size, plus it has lots of vibration. I purchased a small mirror on Ebay but the head adjusts just a few degrees and I can only see the carpet on the rear bulkhead. I have mirrors installed on the windshield stanchion but they cut in half the amount the doors will open making entry and exit harder. Mike

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I have the mirrorforsevens product as well and like it. I am still getting used to it but I have removed the passenger side mirror as I found I just do not need it. I still feel I need the driver side mirror as I cannot quite see everything I want to. I am yet to remove the center mirror as I continue to tweak positioning to avoid the roll bar which sits right in the middle of my line of sight with the mirrorforsevens.

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breezy,

The mirrorsforseven gives me visibility for at least one whole lane over to my left. As Bob told me before I bought it, my face appears between the first two panels on the left, and the bulk of the furtherest left panel allows me to see to merge into the "passing" lane--yes, I am old enough to remember when that is how you were taught to drive--stay to the right except to pass!

 

Of course, I have been driving with NOTHING but the Caterham "inside" mirror, so the improvement seems incredible to me.

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It's REAL simple. Buy this mirror and you will be safer than you were without it. I don't understand why people feel like they have to search for something better.

 

I have one on my car* and it has saved my bacon a few times - it is cheap insurance. The mirror(s) is much better than any other mirror I have tried - great visibility and it does not block your view ( a huge plus in my book). I do use it with a set of spa side mirrors. I do use it at night - which is not much of a problem as you can easily lean away from the glare if you need to.

 

All in all one of the best upgrades I've made to the car.

 

Tom

 

*when I have the windscreen on - Bob, when will you make a version for brooklands? :D

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A Brooklands adaptation would be quite a challenge. I imagine it would have to piggyback onto the inside wingnuts with a bracket of some sort, or be bolted to the scuttle strap. Might look a bit cludgy at best, and not very aerodynamic.

 

Currently, a convex SPA centerpost mirror is probably the best choice for Brooklands and aeroscreened cars.

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Ok Ok OK, enough already. I just ordered one. It's only money. I hope it will be here in time for the Roaring River Gathering so I can show it off. Russ

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Sounds pretty slick. But so far, I am quite happy w/my Caterham's set up: 2 convex side mirrors mounted on either side of the windshield and a center mounted rear view mirror. All work with or without the top on. All can easily be adjusted while seated in the driver's seat. I have great rearview vision even when strapped in for track days with a HANS device that severely limits head movement.

Edited by Kitcat
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I have the standarc Caterham center mirror and two convex Spa mirrors on the green car and the Mirror for Seven mirror with two flat mirror on the silver car. The Mirror for Seven has a little better coverage but it is hard to adjust for two different drivers.

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I think I will have to sit in a car that has the mirror for seven to truely see if it would work for me ... for now I continue to use the two Muth Signal Mirrors that work as brakelights too! And I have a pretty wide, generic, rearview tilt glare mirror mounted on the glass and bent up at the height of the tip of the windshield for max ahead viewing.

 

Rob

Edited by solder_guy
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