Home

Botmite

Construction
Details &
Photos

Camera
Transmitter
Hacks & Mods

Basic

Aerodynamics

Repair
Repair 2
Repair 3
Repair 4
Repair 5
Repair 6

Botmite2
B2-calcs1 tools
materials

Arc-Sec

from IMAGE page   from CAMERA page

Capture the Photon - Lens Work

   A lens is typically made from glass (Silicon or Quartz) or plastic; both are electrical insulators.  So, in general, electrons are inhibited or blocked from passing thru this material.  Light is reflected off the environment being sourced from the sun in daylight, naturally. A camera lens brings these waves of photons to a focus with various wavelengths converging together on a plane.  When enough of these waves arrive on the focal plane, the imaging detector (CMOS or CCD) can convert this photon pool to electron information which is moved along to a display.  
   Photons behave similarly to electrons, sharing both wave and particle characteristics.  As electromagnetic wavelength decreases, energy content and smaller size resolution increases.  Photons are considered without mass according to the study of Physics.
   Fundamentally, time and (light) energy form the core of this process. Light waves can be somewhat random or orientated - meaning polarized; traveling along a helix; traveling up and down or left-right.  This polarization can be changed with a mirror or prizm. 

Optical Resolution - Abstract

  Static camera lens and static target; relative positions held constant.  Without motion, time is significant to register ambient illumination of target as an image on the CCD.
   Daylight illumination in summer mid-latitude: from 120,000 lux brightest day to 200 lux very dark sky; typical overcast 2,000 lux.  Full moon night illumination about 1 lux.   A lux is a measurement of light per square meter per second of time.
   Since the amount of available ambient sunlight varies over this wide range, the time to image a target also varies along with the ability to resolve target features.
   Flash, light and laser illumination offer an alternative to quickly resolve target features especially when synchronized with the CMOS or CCD. 
   Increasing the ASA, ISO, DIN or speed of the CMOS or CCD imager reduces the amount of light necessary to photograph a target.  Faster frame rate coupled with a higher speed means sharper resolution of target features are possible. 

[Photos] [Aircraft] [Electronics] [Sensors]

.

.