RE: re Re: Headlight Hype? or Facts

[rcohen@ameritech.net]

The problem is that your eye has a gain control called the iris.

Rob

-----Original Message-----
From: owner-quattro@coimbra.ans.net
[mailto:owner-quattro@coimbra.ans.net]On Behalf Of Robert Houk -
WorkGroup Server Firmware
Sent: Friday, March 12, 1999 3:27 PM
To: kirby.a.smith@lmco.com
Cc: quattro@coimbra.ans.net
Subject: Re: re Re: Headlight Hype? or Facts


   The diff between a 80/100 and 55/60 bulb is only just discernable.  I
think
   ...
--- and ---

   Huw is right.  The eye is logarithmic in response.  Further, there are
   ...

Isnt' the eye progressively more sensitive at low light levels than at
high light levels? I.e., at low-light-levels ("night"), doubling the
light energy is substantially more perceivable than at high-light-levels
("day")?

					-RDH