1. SPICA FPI envelopes – current status 16 th April, 2010 Hideo Matsuhara On behalf of FPI team

2. About the 3D file delivered on 16 th Apr. 2010 FPI_ASM_IOB(Trass)_Envelope(FPC)_New.zip Yellow: IOB proposed structure satisfying the FPIA stiffness requirement with top/bottom/side plates made of Aluminum Interferes SAFARI envelope (!) Too heavy! White/gray : MIRACLE – now the optics are updated. The CAD model now also includes Filter & Slit wheels, etc.(mostly final) Green, purple: FPC-G, FPC-S Light blue : SCI SAFARI is omitted, just for better seeing for other FPIs

4. FPI envelopes & IOB mount plate & MIRACLE alignment panel (1) MIRMES sits here?? MIRHES sits here??

5. FPI envelopes & IOB mount plate & MIRACLE alignment panel (2) SAFARI sits here

6. Inside the MIRACLE envelopes - FPC optics can be delivered soon Orientation of SCI is not the current version

7. Optics inside the envelopes (1) Paraxial focal plane of STA MIRACLE-L MIRACLE- S SCI FPC-G FPC-S

9. MIRACLE -long envelope

10. FPC-S envelope and optics inside The optics will be updated soon, but must be inside the current envelope

11. Near future updates, deliverables SCI optics will be included in the CAD file, and its orientation will be corrected in the next round FPC optics (under updates, new version will be available on 26 th Apr.) will also be included in the CAD file IOB mechanical design – to be discussed on 21 st Apr. at JAXA Looking for a solution to satisfy the serious stiffness requirements – need of a drastic idea? New SAFARI optics/envelopes will be included when available.. Envelopes MIRMES, MIRHES will be deliverable in early May (tbd) but no mechanical interference is expected with SAFARI