40mm Sq x 200mm FL 24° Off-Axis Parabolic Mirror

Product Family Description

• High Quality Glass Substrate
• λ/4 or λ/2 Surface Accuracy
• Ideal for UV and Visible Applications

Our High Performance Off-Axis Parabolic Mirrors feature a superior surface accuracy glass substrate, making them ideal for UV and visible applications. Unlike standard parabolic mirrors, these off-axis mirrors direct and focus incident collimated light at a specific angle, allowing unrestricted access to the focal point. Typical applications include use in Czerny-Turner and Littrow spectrometer configurations, and in general collimator and beam expander setups.

High Performance Off-Axis Parabolic Mirrors have been replicated from masters which have passed stringent inspection criteria, including zonal interferometric and Foucault testing. The aspheric optical profile is holographically recorded onto the mirror substrate.

Note: The bare aluminum coating on these optics is delicate and can be easily scratched. If cleaning is required, non-contact methods such as compressed air or an air-blower should be used.

Technical Information

Parent Focal Length PFL	Reflected Effective Focal Length EFL	Y Offset	V	Off-Set Angle	Stock No.
125mm	134mm	67mm	9mm	30°	#90-976
200mm	209mm	85mm		24°	#90-977
275mm	279.1mm	67.5mm	4.1mm	14°	#90-978
					#90-980
	277.6mm	53mm	2.6mm	11°	#90-979