Equilateral Prisms are available in both Laser Quality and Analytical Quality polish designated as LQ (Laser Quality) and AQ (Analytical Quality).  Equilateral Prisms are available in BK7* Glass.  Equilateral Prisms are a dispersing type of prism typically used for wavelength separation applications.  The three sides of the prism are of equal length.  A light ray is twice refracted passing through the prism with total deviation a function of prism material index of refraction, and hence wavelength.

For more information about Prisms, refer to our Optics Tutorial page.

SPECIFICATIONS Material : BK7* Glass       Size Tolerance: ± 0.25mm Angle Tolerance: LQ = ±3 arc minutes                          AQ = ± 10 arc minutes     Surface Figure:  LQ = l/10 @ 633 nm nominal                         AQ = ~1l @ 633 nm nominal                       Surface Finish:   LQ = 20-10 both surfaces                          AQ = 60-40 both surfaces Clear aperture: central 80%  Chamfer: ~ 0.30mm @45 deg. (LQ = Laser Quality / AQ = Analytical Quality) All dimensions in mm

                          

SIZE  'L' x 'L' (mm)	QUALITY	PRODUCT #	PRICE	ORDER
25.0	Laser Quality Equilateral Prism	LQB250EP	$280.00	LQB250EP
25.0	Analytical Quality Equilateral Prism	AQB250EP	$115.00	AQB250EP
30.0	Laser Quality Equilateral Prism	LQB300EP	$285.00	LQB300EP
30.0	Analytical Quality Equilateral Prism	AQB300EP	$125.00	AQB300EP
40.0	Laser Quality Equilateral Prism	LQB400EP	$330.00	LQB400EP
40.0	Analytical Quality Equilateral Prism	AQB400EP	$155.00	AQB400EP
45.0	Laser Quality Equilateral Prism	LQB450EP	$350.00	LQB450EP
45.0	Analytical Quality Equilateral Prism	AQB450EP	$195.00	AQB450EP
50.0	Laser Quality Equilateral Prism	LQB500EP	$435.00	LQB500EP
50.0	Analytical Quality Equilateral Prism	AQB500EP	$225.00	AQB500EP
60.0	Laser Quality Equilateral Prism	LQB600EP	$490.00	LQB600EP

          *Other optical materials such as SF10 and UV grade Fused Silica are available
 

             · AR Coatings for all Equilateral Prisms are available ONLY by special Request

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