erect image

erect image

[i′rekt ′im·ij]
(optics)
An image in which directions are the same as those in the object, in contrast to an inverted image.
References in periodicals archive ?
Tenders are invited for Standard Vernier Theodolite - One Set Consisting Of Following Specification: Accuracy 20 Seconds, Erect Image Using Prisms, Optical Plummet System Embeded In Circle, Dark Blue Coated Lenses, Steel Axis With Ball Bearings, Circles Made From Steel, Carrying Case.
The Cobb method has been used since 1948 to measure the magnitude of the angle on the PA erect image (9,10,21,24,29) The Cobb angle is found by first locating the endplates of the most angulated inferior and superior vertebrae of the curve.
A roof prism splits the light cone from an objective lens into two separate pathways, involving different internal reflections, before recombining them into an erect image at focus.
The erect image on the 14" screen of the MC-14 is distortion free edge-to-edge because of the use of high-quality telecentric optics.
Nakedeye green flashes are most often seen when an inferior mirage of the Sun's green upper fringe merges with the normal erect image, producing an elongated lenticular blob.
Lm10106 Having Accuracy 20 Second With Erect Image Using Prism Dark Blue Coated Lenses Optical Plummet System Embrdded In A Circle Of Pure Silver Steel Axis With Ball Bearing And Fibre Glass Carrying Case And Alluminium Triped Stand With Standard Accessories.
The compact, straight-through 8x21 finderscope, held securely with a 6-point bracket, can be focused and gives an erect image.
Their 7 [degrees] field and erect image make locating objects fast and easy.