convex lenses
Outward-curving glass pieces
Convex lenses are lenses that curve outward, thicker in the middle than at the edges.
They converge light rays passing through them to a focal point, making them useful for magnification and correcting farsightedness.
Reading glasses, magnifying glasses, and camera lenses use convex lenses.
The opposite of concave lenses.
Wave bending between media
- focal pointCenter of interest
- focal lengthLens-to-convergence-point distance
- light bendingRedirection of rays
- convergenceProcess of approaching sameness
real image · virtual image · magnification · prism · transparent · glass · projection · collimation
Corrective lenses worn
- spectaclesCorrective eyewear worn daily
- reading glassesCorrective lenses for close-up
- bifocalsDual-strength corrective lenses
- prescriptionMedical dispensing authorization
hyperopia · farsightedness · presbyopia · vision correction · optometry · optometrist · ophthalmology · frames
Instrument for viewing minute objects
- eyepieceLens you look through
- ocularOf the organ of sight
- specimenIndividual for examination
- slideSmooth continuous movement
illumination · laboratory · magnification · resolution · condenser · biological · microbiology · histology
Instrument magnifying faraway objects
- refractorLight-bending optical instrument
- observatoryFacility for celestial study
- stargazingObserving celestial bodies
- celestialOf the sky above
Galileo · Hubble · eyepiece · objective · aperture · focal length · achromatic · night sky
Image capturing device
- apertureAdjustable optical inlet
- shutterHinged window covering
- exposureState of being unprotected
- sensorInput-detecting device
zoom · wide-angle · f-stop · depth of field · viewfinder · SLR · digital · film
refraction
Wave bending between media
- focal pointCenter of interest
- focal lengthLens-to-convergence-point distance
- light bendingRedirection of rays
convergence · real image · virtual image · magnification · prism · transparent · glass · projection · collimation
eyeglasses
Corrective lenses worn
- spectaclesCorrective eyewear worn daily
- reading glassesCorrective lenses for close-up
- bifocalsDual-strength corrective lenses
prescription · hyperopia · farsightedness · presbyopia · vision correction · optometry · optometrist · ophthalmology · frames · magnifying glasses
microscope
Instrument for viewing minute objects
slide · illumination · laboratory · magnification · resolution · condenser · biological · microbiology · histology · cytology
telescope
Instrument magnifying faraway objects
- refractorLight-bending optical instrument
- observatoryFacility for celestial study
- stargazingObserving celestial bodies
celestial · Galileo · Hubble · eyepiece · objective · aperture · focal length · achromatic · night sky · planets
camera
Image capturing device
sensor · zoom · wide-angle · f-stop · depth of field · viewfinder · SLR · digital · film · resolution