negative lens

negative lens

[′neg·əd·iv ′lenz]
(optics)
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Tenders are invited for Best Form Positive Lens Plano Concave Negative Lens
Yeah, just to swallow so much that the country looks at you through this negative lens and corruption and cronyism and you're lying and you're - you want money and you're motivated by power," Conway said.
The psychological costs are often the more significant concern, as both observers and participants view participation through a negative lens.
Additionally, the 1 1/4-inch barrel contains a removable negative lens that allows you to vary the focal length with optional spacer rings.
Looking through the most negative lens are religious fundamentalists, doctrinaire psychoanalytical types, and, probably most dangerous, therapists who don't see themselves as homophobic but who really believe that being gay or lesbian is evidence of incomplete or immature psychological development and possibly the underlying cause of other psychological problems.
The more negative lens is slabbed-off to remove unwanted base down prism and this technique can be applied to D segments, E-line bifocals and even progressives, although the cosmesis of this final option will be compromised by the introduction of a subtle dividing line on one lens.
A negative lens with a focal length of 1 meter has a strength of -1 diopter, or -1.
The negative lens power shifts the focal point posterior to the retina, and in turn this prompts axial elongation and transient choroidal thinning leading to myopic refractive error.
To modify the negative lens, you will need a suitable convex tool.
As can be seen in Figure 5, the near vision potential was limited with both AIOLs, with a steep drop-off in VA as negative lens defocus increased, although the Synchrony group demonstrated significantly better median acuity at the -3.
Barlows typically consisted of a two-element negative lens that amplified 2 [yen] to 3 [yen] .
A Barlow typically consists of a doublet negative lens, which is usually easier to make than the optics in a sophisticated eyepiece.