A high quality flat mirror made from tempered float glass, with aluminium and quartz coating. No ghost images because the reflective surface is on the front of the mirror!
High quality lenses made from acrylic glass. The budget solution for all optical experiments. Diameters between 13 and 62 mm, a whole range of different focal lengths. C: convergent lens D: divergent lens
High quality single lenses and achromatic systems of two lenses. Ideal for experiments and self-made optical instruments. Diameters between 18 and 50 mm, a whole range of different focal lengths. All lenses are surplus from production lines of optical instruments. 531+532OMG and 550-569OAL Diameters: 18 to 50 mm Focal lengths: +26.5 to +250 mm
The LensPen is a great tool for all of your optical equipment, including eyepieces, telescopes, spotting scopes, binoculars, microscopes, cameras, lenses, and more. Even your spectacles! Good for approximately 500 uses - No liquids are used...nothing to spill or dry out.
Choose Size On Right Its surface is covered with concentric grooves that refract the light. Nowadays they find wide use e.g. in light houses and overhead projectors. Well suited as magnifying glasses for reading small text. Some In the form of a round magnifying glass with handle, magnification 3x, with good resolution