Surveying Reflector 64mm Total Station Circular Prism 5/8x11 Female Thread

Place of Origin China
Brand Name Leosurvey
Model Number AK11
Minimum Order Quantity 10 Pieces
Packaging Details Soft Bag; Box; Carton
Delivery Time 3-5 work day
Payment Terms T/T
Supply Ability 1000 pieces per month
Product Details
Prism Constant 0mm/-30mm Type Single Prism
Prism Size 64mm Thread Type 5/8x11 Female Thread
Package Bubble Soft Bag Target Plate Metal
Color Black And White Prism Type Topcon
Condition New Used For Total Station
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64mm Total Station Circular Prism


Surveying Reflector 64mm Circular Prism


5/8x11 Female Thread Circular Prism

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Product Description

Surveying Reflector Prism 64mm Total Station Premier Prism Assemblies


Model: AK11


Prism Data:

  1. Prism Constant: 0mm/-30mm
  2. Type: Single Prism
  3. Color: Black and White
  4. Prism Size: 64mm
  5. Weight: 1Kg
  6. Used For: Total Station (Sokkia, Nikon, Trimble, Pentax, Topcon etc.)
  7. Package: Soft Yellow Carrying Bag
  8. Target Plate: Metal
  9. Thread Type: 5/8x11 female thread


Item Introduction:

This complete tilting prism assembly comes with a 64mm prism mounted in a sealed canister.


The prism can either be mounted in a -30mm or zero offset position.


With Removable Metal Target Plate.


Tilting knob can fix the prism angle.


High reflection rate by aluminum coated prism


Un-foggy by aluminum coating on prism and sealed structure


Prism Comes with a protective padded nylon carrying case.


What is an optical survey prism

Optical Survey Prisms are a specially designed retro reflector, specifically a corner reflector, that is used to reflect the Electronic Distance Measurement (EDM) beam from a total station.

A survey prism reflects the EDM beam back to its source with both a wide angle of incidence and with high precision


Prism Measuring Accuracy

The range of a prism results from, among other things, its coating and the glass geometry. Measurement errors occur frequently at close ranges when prisms without anti-reflex coating are used, as the front of a prism always directly reflects a certain percentage of a signal. Errors occur in the use of prisms without copper coating on the back side when moisture droplets accumulate or the prism becomes foggy.

High standard quality prisms have a special coating on the reflective surfaces – the Anti-Reflex Coating, and a copper coating on the reverse side. Without these, the range of distance measuring, ATR and Powersearch would be reduced by up to 30%. The workmanship and the durability of the copper coating are decisive for a long life.

The glass dimensions, the position in the holder and with it the areal orientation, are important for measuring accuracy.


Centring Accuracy

Measurement errors occur if poor quality prism holders are used. The holder and the prism constitute a unit with which the centring and repeat accuracy is defined. The smallest dimensional change in the geometry of a glass prism or on the holder can lead to a deviation from the centring axis and thereby create measurement errors.


The beam deviation of a prism defines the its maximum range, according to the principle "entering beam should equal the exiting beam". The smaller the beam deviation (measured in angle seconds), the greater the directly reflected signal strength to the sender optic. The returned signal quality defines the maximum range of a measurement.



Surveying Reflector 64mm Total Station Circular Prism 5/8x11 Female Thread 0

Surveying Reflector 64mm Total Station Circular Prism 5/8x11 Female Thread 1