Dr. Erning Wihardjo Profile

Dr. Erning Wihardjo

Sr. Scientist at Univ Kristen Krida Wacana

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 11 November 2016 Paper

Pre-cataract surgery test using speckle pattern

Suganda Jutamulia, Erning Wihardjo, Joewono Widjaja

Proceedings Volume 10150, 101500C (2016) https://doi.org/10.1117/12.2244634

KEYWORDS: Surgery, Speckle, Semiconductor lasers, Retina, Speckle pattern, Eye, Collimation, Spatial frequencies, Opacity, Cornea

Read Abstract +

SPIE Journal Paper | 1 March 1995

Interferometric measurement of actual oblique astigmatism of ophthalmic lenses

Erning Wihardjo

OE, Vol. 34, Issue 03, (March 1995) https://doi.org/10.1117/12.10.1117/12.190404

KEYWORDS: Monochromatic aberrations, Lenses, Eye, Interferometry, Interferometers, Lens design, Beam splitters, Collimators, Wavefronts, Algorithm development

Read Abstract +

Proceedings Article | 1 December 1991 Paper

Accurate method for measuring oblique astigmatism and oblique power of ophthalmic lenses

Erning Wihardjo, Donald Silva

Proceedings Volume 1529, (1991) https://doi.org/10.1117/12.50480

KEYWORDS: Monochromatic aberrations, Eye, Lenses, Wavefronts, Interferometers, Lens design, Collimators, Chromium, Visual optics

Read Abstract +

SPIE Journal Paper | 1 June 1990

Parallel optical logic gates using one-dimensional spatial encoding

Erning Wihardjo, Demas Sanger

OE, Vol. 29, Issue 06, (June 1990) https://doi.org/10.1117/12.10.1117/12.55626

KEYWORDS: Computer programming, Image processing, Optical logic, Logic devices, Optical arrays, Array processing, Binary data

Read Abstract +

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years