英語 での Numerical aperture の使用例とその 日本語 への翻訳
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This angle is the same as the definition of the numerical aperture NA, so d= λ/ NA.
The numerical aperture of the optical pick-up head is 0.65, compared with 0.6 for DVD.
Positive meniscus lenses may be used to increase the numerical aperture of apositive lens assembly, without an undue increase in the aberrations.
The NA(numerical aperture) of the lens is an index for judging the brightness, resolution and depth of focus of the lens.
In general, the performance of an optical microscopedepends largely on the wavelength of light it uses and the numerical aperture(NA) of its objective lens.
X Line objectives' high numerical aperture(NA) enables them to gather more light for brighter, higher resolution images.
DESCRIPTION As a micro-lens that has low aberrations, high efficiency,and high numerical aperture(NA), the micro-Fresnel lens is under research and development.
Numerical aperture(NA) and opening angle of fiber optics are calculated by refractive indices of core and clad material. The equation is as follows:.
Silicone immersion objectives can be designed with a larger numerical aperture(NA) than water immersion objectives, increasing image resolution and brightness.
Fiber optic numerical aperture and aperture angle is calculated by the following formula in refractive index of core material and clad material.
Last but not least,absolute measurement performance is dependent upon wavelength and numerical aperture, without the limitations imposed by the physical size of a stylus tip.
A high numerical aperture stent inspection system has been developed, composed by a rotary stage, a CMOS camera and a triple illumination arrangement.
Focus Variation has the benefit of being very robust for the measurement of rough surfaces,but it requires high numerical aperture to achieve high vertical resolution.
By the combination of a high numerical aperture(NA) optical system, a rotational stage and a line-scan camera, unrolled sections of the outer and inner surfaces of the stent are obtained and image-processed at high speed.
Even if you change device generations and pattern size,by increasing the data transmission rate in accordance with the numerical aperture, it is possible to maintain the throughput of 10wph at least.
Furthermore, spatial resolution is reduced in principle, due to reasons including the use of near infrared light which has approximately twice the wavelength of visible light anduse of it at a low effective numerical aperture.
For instance,Interferometry provides the highest vertical resolution independently of the numerical aperture of the objective, but I has the drawback of being highly sensitive to vibration and requires large amount of acquired images to extract the areal information.
Fiber coupled laser diodes contains TO, I6-Za, Gf4, Gf410 packages, available with wide wavelength rage from 635nm to 980nm, fiber core diameters of 105μm, 200μm, 300μm,400μm with NA0.22 numerical aperture.
All techniques based onoptical measurement beam having a large numerical aperture, including imaging based techniques, interferometric or not, and confocal techniques are ineffective because the beam can not reach in the exploitable condition the bottom structures.
An immersion liquid may also be applied to other spaces in the lithographic apparatus, for example, between the mask and the projection system Immersion techniquesare well known in the art for increasing the numerical aperture of projection systems.
All the techniques based on anoptical measurement beam which has a high numerical aperture, which includes imaging based techniques, whether interferometric or not, and confocal techniques, are inoperative because the beam cannot reach the bottom of the structures under usable conditions.
An immersion liquid may also be applied to other spaces in the lithographic apparatus, for example, between the mask and the projection system Immersion techniquesare well known in the art for increasing the numerical aperture of projection systems.
The point of this is that exposure radiation allows imaging of smaller features because it will have a shorter wavelength in the liquid also,the effect of the liquid is to increase the numerical aperture(NA) of the system And may be considered to increase the depth of focus.