Homebuilt underwater robot

 

PCB camera

Cheap PCB B/W camera. Intended as primary vision because of high sensibility. Cost 30€. Colour cameras with the same prize has only 1lux sensiblity, 20 times worst.
For colour video recording I use second hand consumer camera (4lux/F1.8).

PCB camera: Cheap B/W dome camera. Used in CCTV systems.PCB camera: Cheap B/W dome camera. Used in CCTV systems.

PCB camera sensor: Sensor of the PCB camera (chip in the middle).PCB camera sensor: Sensor of the PCB camera (chip in the middle).

PCB camera lens: 3.6mm/F2.0 lens. DIP16 chip for scale.PCB camera lens: 3.6mm/F2.0 lens. DIP16 chip for scale.

Parameres

  1. Sensor: LG 1/3” CCD
  2. Horizontal resolution: 420 TV lines
  3. Minimum illumination: 0.05 lux/F1.2
  4. Video output: 1.0Vpp, 75Ω (BNC plug)
  5. Power supply: 12V
  6. Power comsumption: 100mA
  7. Operating temperature: -10°C~+50°C
  8. Lens: 3.6mm/F2.0 (angle of view 67°)
Note that althought sensor sensivity is 0.05lux, the real sensivity is less because of lens. 0.05lux is for F1.2, but lens have F2.0.
Videou output is suitable for any TV/VCR etc.

Example pictures

Test scene (light): Source of light: 2x100WTest scene (light): Source of light: 2x100W Test scene (dark): Source of light: 1x40WTest scene (dark): Source of light: 1x40W Test scene (infrared): Source of light: infrared LEDTest scene (infrared): Source of light: infrared LED Photo of the postcard: Visible disortions caused by the low quality lens.Photo of the postcard: Visible disortions caused by the low quality lens. Test scene full color: Taken by digital camera (Canon A75). Exposition time: 1s.Test scene full color: Taken by digital camera (Canon A75). Exposition time: 1s.