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The Technology of Manufacture of a Positive Lens of Achromatic Dublet
Rail, Zdeněk ; Melich, Zbyněk ; Šrajer, Bohdan ; Šípová, Gabriela ; Ulrichová, Iva ; Franců, Helena ; Melich, Radek ; Vápenka, David ; Tomka, David ; Thoř, Tomáš
This paper deals with manufacturing of a positive lens of achromatic dublet. Diameter of the dublet is 158 mm and its focal length about 2500 mm. The glass material of the former lens was inhomogeneous and the dublet provided bad images. This is why we decided to manufacture new lens. The process was made by means of former machines of our workshop. The telescope with this dublet is placed at the Observatory of Turnov and serves for public astronomical observation.
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P3-TOP-TN-15001 Achievable microroughness of ASPIICS optical glass elements
Bartoníček, Jiří ; Budasz, Jiří ; Hadincová, Ivana ; Horodyská, Petra ; Kaucká, Iva ; Kovačičinová, Jana ; Lédl, Vít ; Melich, Radek ; Pleštil, Jan ; Poláková, Ivana ; Procháska, František ; Psota, Pavel ; Rail, Zdeněk ; Šípová, Gabriela ; Šrajer, Bohdan ; Ulrichová, Iva ; Václavík, Jan ; Vápenka, David ; Vít, Tomáš
The scope of this document is describe a test that investigates an achievable micro-roughness realized on different types of optical glasses [R1] that are planned to be employed for realization of PROBA3 coronagraph telescope. The test is realized with respect to the technological manufacturing possibilities of optical elements at TOPTEC facility.
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