Dave Shafer

lens design optical design aberrations optics mirrors lenses geometrical optics aspherics telescope rays color freeform aspherics image humor catadioptric lens photography diffractive music opera dave shafer jewish diffraction-limited wide angle unobscured verdi zoom religion camera offner fast speed glasses light design bible humanist relay system optimization double-gauss schmidt egypt pictures cameras triplet mirror spherical aberration astronomy newsletter lithography torah god philosophy jews obscuration metasurface parabola telecentric search engine optimization lateral color astigmatism aspheric aperture stop april fools petzval lens design mirrors high na broad spectrum david shafer photos flowers size hybrid classics epic greek odysseus odyssey homer vignetting freeform ring field irrational mtf invention 3rd order aspheric shape secondary color laser double aspheric creativity eye glasses geometrial optics distortion pharaoh birds spherochromatism coma axial color glass apochromat shafer aplanatic funny moses exodus gounod laughter concentric monocentric stereo moon carl sagan space probes venus velikovsky optical designs focus testing aida hebrews diffraction light rays telescopes career sendak artist science home ark of the covenant atheist optcs health medicine food torah moses religion judaism mysteries bible god atheism free will tutorial aesthetics design theory business video interview design thinking global optimization local minima solution region design optimization optics education mistral provence operations mireille lnes wynne-dyson dyson germanium schiefspiegler conic aspheric secondary mirror field mirror aspheries cassegrain gregorian fresnel equivalent refracting surface interferometry inteference fringe spiral conjugates magnification afocal history patent spyglass achromat telephoto togetherness isolation amusing social distancing virus judasim joseph geometrical otpics diffractive surface reflective weight refractive sirens dragon fame hell heaven gods memorize milman parry illiad saga correction special glasses curved image linear field strip field annular field configuration reflection surfaces x-y polynomials lens designs chess problem rule set homer simpson chess deep learning artifical intelligence external pupil catadioptric wide field simple design monochromatic nature blossoms bees butterflies closeup war snopes fake news currency stocks money popper keynes markets economics nazi philanthropy osf hungary soros 5th order invisible cloaking scanning innovatiion moloch sacrifice sheep goat limping jacob rabbi crisco deli treyf kosher 5ht order higher order cell phone teriary color primary color flat image wide field of view diverger beam expander spherical aberration. point source null test dome innovation thinking assumptions stage illusion magic low vision string pull-overs frames knives scissors conics eyepiece compact design focal length relaxed design pixels field angle mummy mouth leonardo kite herodotus freud freemasons da vinci cradle corpus hermeticum computer swansea maksutov joe bietry dalí painting prisms surrealism illusion freeform aspheric pupil gabor round table wit algonquin quips dorothy parker poetry canaanites snakes serpent lilith eve sex judaism levites asherah leviathan adam lesn design obscurartion microscope werther romanticism goethe delibes massenet romeo and juliet lakme happiness humanism faith death exceptionalism grief yom kippur 9/11 loss spacecraft geometric optics prism induced aberrations aberratons beamsplitter prediction catastrophy orbits censorship mars planets sceince ancient history worlds in collision null lensesses otello simon boccanegra doge consumption la traviata jester rigoletto nebuchadnezzar babylonian captivity nabucco dna sephardim levi diaspora iq ashkenazi cohen genetics melanoma cancer sunblock sunscreen tans vaccines skin sisters writing feminist screenwriter film journalism nora ephron optics. telescopes design methods specgrum glass types office vacation fun summer plans club memory old age age retirement congratulations grandparents grandchild baby schneerson satmar chassid chabad lubavitch orthodox hasids hasidic challenge contest computer program gay psychology children books images travel feynman physics ancient israel yahweh women's suffrage woman humanist women's rights ernestine rose phenomenology husserl landscapes art competition alphabet word play hebrew hidden messages code polio salk vaccine diet shakespeare techniques new year resolutions humor spinoza kismet mind predestination brain fate