Results 11 to 20 of about 165,986 (168)

Design of an improved Fresnel prism

Acta Physica Sinica, 2006
Based on the optimization of the optical material and internal reflection angle, we designed a model of improved Fresnel prism that is insensitive to the angle of incidence. In this device, the incident light is reflected twice at the same internal reflection angle on the interface between two kinds of glass and the air.
null Tao Wei-Dong, null Wang Biao
openaire   +2 more sources

Successful prism treatment for cyclic esotropia: A case report [PDF]

American Journal of Ophthalmology Case Reports
Purpose: To report a case of cyclic esotropia successfully treated with prismatic correction. Observations: A 9-year-old girl presented with intermittent esotropia and diplopia occurring over the previous 4 months.
Noriko Nishikawa, Yuriya Kawaguchi, Rui Fushitsu, Yumi Kuroda, Taiji Nagaoka   +4 more
doaj   +2 more sources

Scale-model experiments of applying a Fresnel prism to greenhouse covering

Solar Energy, 1991
Kenji Kurata
exaly   +2 more sources

Peli prism fitting for homonymous hemianopia: Case series for fitting variations

Indian Journal of Ophthalmology. Case Reports, 2023
Peli prisms are Fresnel prisms for visual field expansion in homonymous hemianopia. They can be dispensed as temporary (press-on) or permanent prisms. In this case series, we discuss the general fitting techniques and report fitting Peli prisms in four ...
Ranindita Saha, Vivek Reshamwala, Prem Nandhini Satgunam   +2 more
doaj   +1 more source

Outdoor degradation evaluation of multi-junction solar cell for four Fresnel concentrated photovoltaic systems

International Journal of Sustainable Energy, 2022
The degradation effect of triple-junction solar cells due to exposure in practical conditions and its influence on the performance of Fresnel concentrated photovoltaic system has been studied.
K. Mahalakshmi, K. S. Reddy, A. Subrahmanyam   +2 more
doaj   +1 more source

Prismatic treatment of acute acquired concomitant esotropia of 25 prism diopters or less

BMC Ophthalmology, 2022
Background This study aimed to assess the efficacy of prismatic treatment in a step-by-step manner to reduce prismatic strength in acute acquired concomitant esotropia (AACE) of 25 prism diopters (PD) or less.
Yan Wu, Xueliang Feng, Junhong Li, Min Chang, Jingjing Wang, Hua Yan   +5 more
doaj   +1 more source

Goos–Hänchen Lateral Displacements and Angular Deviations: When These Optical Effects Offset Each Other

Photonics, 2022
For optical beams transmitted by a right-angle prism, the Goos–Hänchen shift can never be seen as a pure effect. Indeed, the lateral displacement, caused by the total internal reflection, will always be accompanied by angular deviations generated by the ...
Stefano De Leo, Luca Maggio, Moreno d’Ambrosio   +2 more
doaj   +1 more source

Orthoptic treatment of esodeviation using fresnel prism.

JAPANESE ORTHOPTIC JOURNAL, 1986
OKAMURA, Wakayo, KOSAKI, Hiroko, MATSUMOTO, Fumiko, MIYAI, Emiko, IKEBUCHI, Junko, TAHARA, Machiko, YASUDA, Fumiko   +6 more
openaire   +2 more sources

Use of prisms in ophthalmology: a review Part 1. The use of prisms in strabismus: historical background, methodologies and their outcomes

Journal of Ophthalmology, 2020
The paper points to the principle of prisms: if a prism is placed in front of the strabismic eye, images of objects impinging upon the peripheral retina are projected to the central pit, which creates optimal conditions for cooperation of both eyes and ...
V.I. Serdiuchenko
doaj   +1 more source

Advanced Study of Optical Imaging Systems for Virtual Reality Head-Mounted Displays

Photonics, 2023
Driven by the rapid innovation of science and technology and industrial manufacturing technology, virtual reality display technology has developed rapidly. At present, the application of virtual reality display technology is expanding in many fields such
Zhongju Ren, Xiuhua Fu, Keyan Dong, Ying Lai, Jingjing Zhang   +4 more
doaj   +1 more source