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HP Forum Archive 14

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Calcs on display - what lighting?
Message #1 Posted by Peter Khor on 10 Nov 2004, 4:45 a.m.

For those of you that 'display' your collection (or part of), what's your thot on lighting?

1) Incandescent 2) CF tube (does K temp color matter?) 3) Halogen (w/UV filter)

Specifically with regards to deterioration (I'd suppose UV would damage the plastic.

Also, for 'yellow lcd' (non HP calcs), are they more sensitive to UV than regular LCD's?

      
Re: Calcs on display - what lighting?
Message #2 Posted by Johnny Bjoern Rasmussen on 10 Nov 2004, 6:20 a.m.,
in response to message #1 by Peter Khor

Hi

I have no lights in my display rack yet. But I'm thinking of putting in a kind of 'cold' light, as neon, in small tubes. I have the IKEA BERTBY rack, and all the shelfs are in glass, and the rack is therefore very suitable for lightning.

As you write Peter, it's not a good idea to have halogen spots, and due to my racks compact design, I will not have halogen for another reason; heat.

Regards

Johnny

            
Re: Calcs on display - what lighting?
Message #3 Posted by Massimo (Italy) on 10 Nov 2004, 7:21 a.m.,
in response to message #2 by Johnny Bjoern Rasmussen

Watch out!

Massimo

                  
Re: Calcs on display - what lighting?
Message #4 Posted by Frank Boehm on 10 Nov 2004, 11:54 a.m.,
in response to message #3 by Massimo (Italy)

LOL, that's what I thought too :) (In fact, I have the very same one and already replaced the screws before the announcement, since they appeared to be not good enough...)

Back on topic, I would suggest a non-UV at all light - even better would be no light at all though, since most mid-70s plastics is very cheap and will yellow or degrade. This is not the case for HP calculators though ;) The yellow LCDs are yellow because of their UV-filter screen, so better store them away from light.

                  
Re: Calcs on display - what lighting?
Message #5 Posted by Johnny Bjoern Rasmussen on 11 Nov 2004, 6:00 a.m.,
in response to message #3 by Massimo (Italy)

I know about the mounting issue from IKEA. But as I bought the rack second hand, I applied the screws myself.

                  
Sorry I could not resist
Message #6 Posted by Tom (UK) on 11 Nov 2004, 2:13 p.m.,
in response to message #3 by Massimo (Italy)

Americans seem to have such a way with words - "beads may be inhaled into the child's lung and affect the lung function." Or put another way the child may choke to death?

The site also says "Please take the toy away from your child immediately and return it to your nearest IKEA Store!" If you were the child could you sue Ikea for trauma after the toy was taken from you, possibly forcably?

:-)

                        
Sorry; I could not resist either.
Message #7 Posted by James F. Chumbley on 12 Nov 2004, 5:37 a.m.,
in response to message #6 by Tom (UK)

Hey, Tom, If you want to criticize us Americans for our "way with words," that's OK; much of the time we deserve it. But weren't you also amused by the IKEA warning? "Please take the toy away from your child immediately and return it to your nearest IKEA Store!" Technically, I believe, the warning really means to return your CHILD to the IKEA store, "it" referring backwards to the closest noun preceding.

                              
Re: Sorry; I could not resist either.
Message #8 Posted by Sam Hughes on 14 Nov 2004, 10:17 a.m.,
in response to message #7 by James F. Chumbley

No, the sentence is worded correctly.

                                    
I could resist, but didn't.
Message #9 Posted by Sean on 15 Nov 2004, 9:56 a.m.,
in response to message #8 by Sam Hughes

You are CORRECT, sir! In the sentence, "it" refers back to the subject, not the "closest noun".

                                          
Re: I could resist, but didn't.
Message #10 Posted by Sean on 15 Nov 2004, 9:59 a.m.,
in response to message #9 by Sean

Sorry - that should say object.

      
The appropriate light is red LED (NT)
Message #11 Posted by db (channeling Norm again) on 10 Nov 2004, 2:33 p.m.,
in response to message #1 by Peter Khor

            
Re: The appropriate light is red LED (NT)
Message #12 Posted by Ed Look on 11 Nov 2004, 5:39 p.m.,
in response to message #11 by db (channeling Norm again)

Well, you might be able to compromise-

you can get red LCDs! (Or other colors, for that matter... but for readouts on a light background, black is always best.)


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