camera lens
optical lens | a lens that focuses the image in a camera |
condenser
optical condenser | lens used to concentrate light on an object |
| depth finder | navigational instrument used to measure the depth of a body of water (as by ultrasound or radar) |
| direction finder | radio, determines the direction of incoming radio waves |
divining rod
dowser
dowsing rod
waterfinder
water finder | forked stick that is said to dip down to indicate underground water or oil |
finder
viewfinder
view finder | optical device that helps a user to find the target of interest |
laser
optical maser | an acronym for light amplification by stimulated emission of radiation, an optical device that produces an intense monochromatic beam of coherent light |
| optical bench | apparatus for observation and measurement of optical phenomena |
| optical device | a device for producing or controlling light |
optical disk
optical disc | a disk coated with plastic that can store digital data as tiny pits etched in the surface, is read with a laser that scans the surface |
optical fiber
glass fiber
optical fibre
glass fibre | a very thin fiber made of glass that functions as a waveguide for light, used in bundles to transmit images |
| optical instrument | an instrument designed to aid vision |
optical pyrometer
pyroscope | a pyrometer that uses the color of the light emitted by a hot object |
| optical telescope | an astronomical telescope designed to collect and record light from cosmic sources |
panorama
cyclorama
diorama | a picture (or series of pictures) representing a continuous scene |
prism
optical prism | optical device having a triangular shape and made of glass or quartz, used to deviate a beam or invert an image |
rangefinder
range finder | a measuring instrument (acoustic or optical or electronic) for finding the distance of an object |
sonic depth finder
fathometer | depth finder for determining depth of water or a submerged object by means of ultrasound waves |
| stud finder | a small permanent magnet in a metal container, when the magnet clicks against the container it indicates that the magnet is directly over an iron nail that holds the wallboard to a stud |
optical density
transmission density
photographic density
absorbance | (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation |
view aspect prospect
scene
vista
panorama | the visual percept of a region, the most desirable feature of the park are the beautiful views |
fusion
optical fusion | the combining of images from the two eyes to form a single visual percept |
thesaurus
synonym finder | a book containing a classified list of synonyms |
word finder
wordfinder | a thesaurus organized to help you find the word you want but cannot think of |
finder
discoverer
spotter | someone who is the first to observe something |
| finder | someone who comes upon something after searching |
aberration
distortion
optical aberration | an optical phenomenon resulting from the failure of a lens or mirror to produce a good image |
| optical opacity | opacity to light |
| optical illusion | an optical phenomenon that results in a false or deceptive visual impression |
| optical phenomenon | a physical phenomenon related to or involving light |
| finder's fee | a fee that is paid to someone who finds a source of financial backing or to someone who brings people together for business purposes, the agency got a finder's fee when their candidate was hired as the new CEO |
| optical glass | clear homogeneous glass of known refractive index, used to make lenses |
optical crown
crown glass
optical crown glass | optical glass of low dispersion and low refractive index |
optical flint
flint glass | optical glass of high dispersion and high refractive index |
| optical | of or relating to or involving light or optics, optical supplies |
| ocular optic optical visual | relating to or using sight, ocular inspection, an optical illusion, visual powers, visual navigation |
ocular
optic
optical
opthalmic | of or relating to or resembling the eye, ocular muscles, an ocular organ, ocular diseases, the optic (or optical) axis of the eye, an ocular spot is a pigmented organ or part believed to be sensitive to light |