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--- song_spectrograph [2024/09/09 19:14] – [Optical Design] jasonj
+++ song_spectrograph [2025/06/08 23:05] (current) – [Echelle grating] jasonj
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+{{:wiki:solar_spectrum_logo_11.png?400 |}}
 ====== The SONG spectrograph ======
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-  * The efficiency curves from Richardson Gratings testing are {{ :spec:spec:files:grating_efficiency_curves.pdf |here}}.
+  *  {{ :spec:spec:files:grating_efficiency_curves.pdf |Efficiency curves from Richardson Gratings testing }}
-  * The Zygot measurements are {{ :spec:spec:files:grating_zygot.pdf |here}}.
+  * {{ :spec:spec:files:grating_zygot.pdf |Zygot measurements}}.
@@ Line 68: / Line 70: @@
 Related documents
-  * Technical design drawings and specs {{ :docs:oc23040-prp-00001_signedos.pdf |file}}.
+  *  {{ :docs:oc23040-prp-00001_signedos.pdf |Technical design drawings and specs file}}.
-  * Detailed engineering drawing of mirror {{ :docs:song3_oap_370_rev2.pdf |file}}
+  * {{ :docs:song3_oap_370_rev2.pdf |Detailed engineering drawing of mirror file}}
   * When the parent mirror was polished, some edge effects were produced by the CNC machine.The remedy was to reduce the aperture 356 mm to 348 mm. The details are in this {{ :docs:song_apo_oap.pdf |report}}.
 ==== Flat mirrors ====
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 ==== Prism ====
-The prism blank was manufactured by Schott and polished by Vertex. It is made of [[https://www.schott.com/shop/advanced-optics/en/Optical-Glass/SF6/c/glass-SF6#:~:text=A%20classic%20glass%20type%20with,component%20for%20outstanding%20optical%20properties.| SF6]] material.
+The prism blank was manufactured by Schott. It is made of [[https://www.schott.com/shop/advanced-optics/en/Optical-Glass/SF6/c/glass-SF6#:~:text=A%20classic%20glass%20type%20with,component%20for%20outstanding%20optical%20properties.| SF6]] material.
+The polishing of the prism was carried out by Vertex Optics.
 The first polish resulted in a cracked prism.
 {{ :spec:spec:prism:sidewall_2.jpg?direct&200| (Sad) }}
-  * Prism specifications {{ :spec:spec:files:nmsu_prism_blank_specs.pdf |document}}
+  * {{ :spec:spec:files:nmsu_prism_blank_specs.pdf |Prism specifications document}}
+  *  {{ :spec:spec:files:signed_waiver_10030_282_01_rp_.pdf |Specification waiver}}
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 ==== Optical camera ====
+The camera has an Italian-made [[https://www.primalucelab.us/|Prima Luce Lab]] Esatto focuser ({{ :spec:spec:files:esatto-en-user-manual.pdf |instruction manual}}).
-  * Optical camera design {{ :spec:spec:files:song_000_optical_camera.pdf |document}}
+The focuser settings ...
+  * {{ :spec:spec:files:song_000_optical_camera.pdf |Optical camera design document}}
+  * {{ :spec:spec:files:song_apo_optical_test_results.pdf |Optical test results}} with interferometer (02/25)
+  * {{ :spec:spec:files:song_002_central_body.pdf |Camera body dimensions}}
 ==== Detector ====
 We have chosen to use the [[https://www.qhyccd.com/scientific-camera-qhy600pro-imx455/|QHY600 Pro]] detector with the liquid cooling option.
+===== Alignment diagrams =====
+ * {{ :spec:spec:files:song_apo_spectrograph_alignment_info_v2.pdf |Alignment document}}