Tab 04 Statement of Work

Statement of Work
This statement of work provides the requirements for quantity two (2) hemi-ellipsoidal mirrors.
The exact geometry and dimensions required for the mirror are provided on the next page. 










The hemi-ellipsoidal mirror has a semi-major axis of 6.000 inches and a semi-minor axis 5.916 inches. This yields an ellipse eccentricity of 0.1667 and a 2 inch separation of the foci.
The mirror shall be manufactured via electroforming.
The mirror substrate shall be Nickel (Ni).
The mirror shall have a flange with four thru holes for mounting purposes. Acceptable mirror thickness is 0.040 – 0.050’’.
The mirror shall have 1.5 inch diameter thru hole aligned 15° from the one focal point.
The inside (concave) surface of the mirror shall have:
o Surface finish of 10nm or better
o Surface quality of 80-50 (scratch-dig) or better
o Coated with a reflective coating to the following specifications:  Average reflection > 85% from 400 – 700 nm spectral range  Average reflection > 70% from 700 – 2,000 nm spectral range  Average reflection > 97% from 2 – 12 µm spectral range  Note: the reflectivity can be measured / verified on a witness coupon.  Note: Exact coating composition is flexible as long as it meets the above requirements.
The mandrel used for electroforming shall be delivered along with the two mirrors for storage and future use if needed.

Delivery will be to
NASA Glenn Research Center
Attn: Michael Presby
21000 Brookpark Rd
Bldg. 106 Rm. 108
Cleveland, OH 44135
Estimated period of performance is 3-4 months after receiving order.