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Post Mounting Angle Blocks
#8 (M4) Counterbore
8-32 (M4) Tapped Hole
8-32 (M4) Tapped Hole
KS05 Mirror Mount on an AM16C 16° Angle Block
35.3º (Magic Angle)
Click to Enlarge GL15-B Glan-Laser Polarizer secured to a KM100B Platform Mount by a PM3 Clamping Arm. The AM353T Angle Block helps orient the polarizer at a 35.3° angle.
Our Angle Blocks can be used to orient mirror mounts and other optomechanics at several fixed angles from 4° to 54.7°. They are available with either an 8-32 (M4) tap on top or a #8 (M4) counterbore on top. The bottom of the angle block has an 8-32 (M4) tapped hole for our Ø1/2" and Ø1" (Ø25 mm) posts. They are manufactured from black-anodized aluminum and are engraved with the part number for easy identification of the angle.
Additionally, Thorlabs offers an adjustable flip platform with tick marks engraved in 15° increments which can be used to hold components fixed at various angles.
Application Note: The Magic Angle
When using Thorlabs' Glan-Laser polarizers, we recommend securing the polarizer to a Kinematic Platform Mount, as shown in the photo to the right. The kinematic mount enables fine angle tuning and leaves a large clear edge around the polarizer, making it easier to maintain overlap of the pump and probe beams through the sample. In the photo, a 35.3° angle block is used, which requires the pump beam to be vertically polarized; this configuration allows the clamping arm to avoid touching the sides of the housing that have escape windows.
These Angle Blocks contain an 8-32 (M4) tapped hole that is designed to mate with optomechanical components that have a counterbored mounting hole, such as our Kinematic Platform Mounts and most of our Kinematic Mirror Mounts. The bottom of the angle block has an 8-32 (M4) tapped hole for post mounting.
These Angle Blocks contain a #8 (M4) counterbore that is designed to mate with optomechanical components that have a tapped mounting hole, such as our KM05(/M) Ø1/2" Kinematic Mirror Mount and Fixed Lens Mounts. The bottom of the angle block has an 8-32 (M4) tapped hole for post mounting.