Penta Prisms

Penta Prisms

Penta prism can deviate an incident beam without inverting or reversing to 90°.The deviation angle of 90° is independent of any rotation _of the prism about an axis parallel to the line of intersection _of the two reflecting faces. It is commonly used in Plumb Level, Surveying, Alignment, Range finding and Optical Tooling. The reflecting surfaces of this Prism must be coated with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated with aluminum or enhanced aluminum.

Standard Precision Penta Prism

Material:------------------------- BK7 Grade A optical glass
Dimension Tolerance:--------±0.2mm
90° Deviation Tolerance:---according to the table
Flatness: ------------------------ l/2(Standard), l/4(High Precision)@633nm
Reflectivity:--------------------- R > 95% per face @400-700 nm
Surface Quality: --------------60-40 scratch and dig
Coating on input and output sides:-------Uncoated

Size(mm)	1 Min. Deviation		30 Sec.Deviation		10 Sec.Deviation
A x h	Part No.	Unit Price	Part No.	Unit Price	Part No.	Unit Price
2.5 x 2.5	FPP1101	$22.0	FPP1201	$46.0	FPP1301	$62.0
7x5	FPP1102	$17.0	FPP1202	$41.0	FPP1303	$58.0
7 x 6	FPP1103	$16.0	FPP1203	$39.0	FPP1304	$56.0
10 x 10	FPP1104	$16.0	FPP1204	$39.0	FPP1305	$52.0
15 x 15	FPP1105	$16.0	FPP1205	$39.0	FPP1306	$49.0
20 x 20	FPP1106	$19.0	FPP1206	$43.0	FPP1307	$52.0

High Precision Penta Prism

By adding a wedge for deviation correction in output beam surface, it can be used as Percision Penta Prism. It is often used in Plumb Level, Surveying, Alignment, Rangefinding and Optical Tooling.

Material: ------------------------------------------------------- BK7 Grade A optical glass
Dimension Tolerance: -------------------------------------------------------------- ±0.2mm
90° Deviation Tolerance: ---------------------------------------------------------------- <5''
Flatness: -------------------------------------------------------------------------l /4@633nm
Reflectivity: ---------------------------------------------- R>90% per face @400-700nm
Surface Quality: --------------------------------------------------- 60-40 scratch and dig
Coating on input and output sides: ------------------------------------------- Uncoated

Size(mm)	1 Min. Deviation		10 Sec.Deviation
A x h	Part No.	Unit Price	Part No.	Unit Price
7x5	FPP1402	$68.0	FPP1502	$75.0
7x6	FPP1403	$66.0	FPP1503	$73.0
10 x 10	FPP1404	$62.0	FPP1504	$69.0
15 x 15	FPP1405	$59.0	FPP1505	$66.0
20 x 20	FPP1406	$62.0	FPP1506	$69.0

Note:

1. Prices listed above are for small quantity order. Please contact us for prices of OEM or volume
Quantity Request.
2. Custom-made non-standard Penta Prisms at any size are available upon request.
3. Besides Bk7, non-stand Penta Prisms made of other optical materials are availbale upon request.
4. Custom-made Penta Prisms with better flatness (<l/4@633nm), or better surface Quality(Better
than 40/20,or 20/10) are available up on request.
5. AR coating on the input/output surfaces are available. Please refer to page 30 for coating.

>>top