BLOCK CHARACTERISTICS
GBeam Aligner Block A10760
This optical block is for using an infinity-corrected objective lens to
guide laser light into an optical fiber with an attached FC connector or
to collimate and transmit the beam from a fiber-optic cable.
The block has two micrometers for positioning the optical fiber along
the X and Y axes and an additional micrometer at the bottom for fine
adjustments along the Z axis.
This block has a cover around the objective lens and an additional
cover for the entire block that further increases its light shielding
capability.
SPECIFICATIONS
Travels
Optical Fiber
Compatible
Type No.
Weight
XY-Axis Z-Axis Connector
Objective Lens
Infinity-corrected Objective lens
M20.32 × P0.706
Parfocal distance: 45 mm
Approx.
420 g
A10760
1 mm
3 mm
FC
NOTE: Objective lens and fiber-optic cable are not included.
* Supplied: Hex wrench
USING EXAMPLE 1: FOCUSING
BEAM ALIGNER BLOCK
A10760
Dimensional Outlines (Unit: mm)
OBJECTIVE LENS
SCREW
OPTICAL FIBER
C-MOUNT (FEMALE)
INFINITY-CORRECTED
OBJECTIVE LENS
TPMOC0209EB
USING EXAMPLE 2: COLLIMATOR
BEAM ALIGNER BLOCK
A10760
OPTICAL FIBER
70
52
INFINITY-CORRECTED
OBJECTIVE LENS
TPMOC0210EA
TPMOA0051EA
Technical Guide
Pupil Diameter and Parfocal Distance
PUPIL DIAMETER
OBJECTIVE
MOUNTING POSITION
1. Remove the two cover screws using a
Phillips-head screwdriver, and then
remove the cover.
2. Use the hexagonal wrench that comes
with the block to remove the two plate
screws, and then remove the plate.
PARFOCAL DISTANCE
Objective lens
Y-axis
adjustment
screw
SAMPLE SURFACE
TPMOC0223EA
Pupil Diameter
X-axis
Z-axis
The diameter of the beam that is emitted from the pupil
of an objective lens with a focal length f and a numerical
aperture NA is given by:
adjustment screw
adjustment screw
3. Attach an objective lens to the plate's
objective lens screw hole (M20.32
P0.706).
4. Reassemble the block by performing
steps 1 and 2 in reverse, and then
connect the block to other devices.
You can align the optical fiber by using
the X-, Y-, and Z-axis adjustment
screws. Only turn the Z-axis adjustment
screw after you have loosened the
screws in step 1.
Pupil diameter = 2 × f × NA
Parfocal Distance
The parfocal distance is the distance from the objective
mounting position of the objective lens to the sample at
which the sample is in-focus. The A10760 is designed to
be used with an objective lens whose parfocal distance
is 45 mm.
14
HAMAMATSU [ HAMAMATSU CORPORATION ]
