TM 11-5855-261-23
CHAPTER 3
FUNCTIONING OF EQUIPMENT
3-3. Optical Functions
3-1. General
The optical parts of the aiming light are the refractive
lens and scattershield.
light. It shows mechanical, optical, electronic, and con-
trol functions.
a. The refractive lens projects the infrared light in a
narrow, well-defined beam.
3-2. Mechanical Functions
b. The scattershield confines the infrared light in a
Aiming light mechanical equipment consists of azimuth
narrow beam after it passes through the lens. The scat-
and elevation adjusters, a weapon adapter foot, and an
tershield prevents anyone from seeing light scattered
aluminum housing assembly.
from the front surface of the lens, unless they are directly
a. The purpose of the azimuth and elevation adjusters
in front of the aiming light.
is to adjust the shot pattern to the center of the infrared
light beam. For the M 16 rifle, these adjustments are
3-4. Electronic Circuit Functions
identical to the M16 rifle daysight. After proper align-
Electronics circuits consist of the laser diode assembly,
ment, the round should impact in the center of the light
the laser electronics assembly, and wiring connected to
beam as seen with night vision equipment.
the batteries and the ON/OFF switch. The laser elec-
b. The aiming light weapon adapter foot attaches
tronics assembly drives the laser diode which emits in-
firmly to the weapon mounting bracket. The weapon
frared light pulses through the refractive lens.
adapter foot and the mounting bracket are mated first.
Then, the combination is attached to the weapon.
3-5. Control Circuit Functions
c. The aluminum housing assembly encloses the laser
The control circuit consists of the ON/OFF switch and
diode, optics, electronic circuitry, and batteries. Attach-
wiring to the batteries. The laser electronics assembly
ment points and accesses are provided for the scatter-
and laser diode are powered by to batteries when the
shield, battery cap, azimuth and elevation adjusters,
switch is on.
and the ON/OFF switch.
3-1
