>... spectroscope Highly likely. Can be part of a laboratory equipment. Strangely (for me) both ends of the tube seems to be made for eye-viewing.
Perhaps this was used just part of a quality control /inspection process, rather than for measurements. Bulent --------------------------------------------------------------------- http://patoloji.gen.tr http://celasun.wordpress.com/ http://www.flickr.com/photos/bc_the_path/ http://photo.net/photodb/user?user_id=2226822 http://www.pentaxphotogallery.com/artists/bulentcelasun David Mann <[email protected]>, 8 Mar 2019 Cum, 12:19 tarihinde şunu yazdı: > > I'm wondering if it's some sort of spectroscope. > > Cheers, > Dave > > > On Mar 8, 2019, at 7:01 PM, Bulent Celasun <[email protected]> wrote: > > > > MArk, Matthew, > > > > Thank you both for your interest and help. > > I am pleased you also found this gadget intriguing. > > > > First, I must correct a typo for future generations who will look into > > this case: > >> I've found this tubular thing (9 - 22 cm in length, > > It is 9-11 cm in length. > > > > Matthew, your suggestion looks very promising I should say. > > The gadget is conceptually similar. It is just smaller. > > Also the ends of the tube seems to be designed for human eyes > > (consideration of viewing point). > > The image is just a band of rainbow. > > It may well be an "off axis guider" for another system. > > Perhaps, a microscope! > > I will look into this and if I find anything to satisfy our curiosity, > > I'll share it. > > > > Thanks again, > > > > Bulent > > > > --------------------------------------------------------------------- > > http://patoloji.gen.tr > > http://celasun.wordpress.com/ > > http://www.flickr.com/photos/bc_the_path/ > > http://photo.net/photodb/user?user_id=2226822 > > http://www.pentaxphotogallery.com/artists/bulentcelasun > > > > Matthew Hunt <[email protected]>, 7 Mar 2019 Per, 23:30 tarihinde şunu yazdı: > >> > >> The tiny prism makes me think of an off-axis guider for a telescope (the > >> prism functions as a mirror, diverting some of the light near the edge of > >> the field-of-view to an eyepiece or guide camera, while most of the light > >> goes to the main camera). > >> > >> See: > >> http://www.atscope.com.au/astrophoto.html > >> Specifically, the section "Photographing Galaxies, Nebulae, Globular > >> Clusters etc." > >> > >> On Thu, Mar 7, 2019 at 1:55 PM Bulent Celasun <[email protected]> > >> wrote: > >> > >>> I've found this tubular thing (9 - 22 cm in length, about 2 cm in > >>> diameter) in a thrift store. > >>> > >>> There is a single lens in each end. > >>> > >>> It has moveable parts like a mirror that rotates 360 degrees around > >>> the tube. During part of this travel it faces an oval hole on tube's > >>> wall where one can see a tiny prism inside which can intersect the > >>> tubular axis by moving a lever from outside. > >>> > >>> Directing the gadget toward a light source and looking at from the > >>> less populated end of the "tube" I see a typical rainbow. (Light > >>> travelling from one end to the other crossing the prism inside). > >>> > >>> Moving the lever properly while light reflecting from the mirror > >>> enters inside (and is reflected to cross the prism) makes two adjacent > >>> rainbows visible at the far end of the tube. > >>> > >>> Oh well! I am not sure if I was able to describe it... > >>> > >>> Anyway, I ask just out of curiosty. > >>> Has anyone ever seen something like this? > >>> > >>> https://www.flickr.com/photos/bc_the_path/sets/72157707409395914 > >>> > >>> Bulent > >>> --------------------------------------------------------------------- > >>> http://patoloji.gen.tr > >>> http://celasun.wordpress.com/ > >>> http://www.flickr.com/photos/bc_the_path/ > >>> http://photo.net/photodb/user?user_id=2226822 > >>> http://www.pentaxphotogallery.com/artists/bulentcelasun > >>> > >>> -- > >>> PDML Pentax-Discuss Mail List > >>> [email protected] > >>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and > >>> follow the directions. > >>> > >> -- > >> PDML Pentax-Discuss Mail List > >> [email protected] > >> http://pdml.net/mailman/listinfo/pdml_pdml.net > >> to UNSUBSCRIBE from the PDML, please visit the link directly above and > >> follow the directions. > > > > -- > > PDML Pentax-Discuss Mail List > > [email protected] > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above and > > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
