Courtesy of Avantier Inc
665738e4bf89a37c7029736a Screenshot 20240529 At 10

Case Study: Double Convex Lens for Indirect Ophthalmoscopes

Courtesy of Avantier Inc
665738e4bf89a37c7029736a Screenshot 20240529 At 10

An indirect ophthalmoscope is an instrument commonly used for eye examination, usually consisting of a light source and an imaging system. The light source emits a beam of visible or infrared light to the fundus of the eye, and the imaging system generates a fundus image by receiving the reflected light signal. One of the routine ophthalmic examination methods is to enlarge the fine structure of the eye so that doctors can more clearly observe the patient’s fundus lesions. 

Unlike direct ophthalmoscopes, the imaging system of indirect ophthalmoscopes consists of a front lens. The eye inspector generally holds the front lens in front of the subject’s eyes. The light reflected from the fundus of the examined eye first passes through the front lens to form an enlarged inverted real image, and then the enlarged real image is attached to the sensor through the imaging lens.

To read the entire case study, visit Avantier’s website.

Sponsored Recommendations

Download New Product Development Strategies White Paper

March 27, 2025
Discover the importance of new product innovation, different process methods, and best practices for optimizing your company’s strengths.

Manufacturing Considerations for Tolerancing Aspheres

March 13, 2025
Understand the critical factors in manufacturing aspheres and how Lacroix Optics ensures precise tolerancing in every optical component.

Explore Our Videos: Insights into Precision Optics

March 13, 2025
Get an inside look at Lacroix Optics with our collection of informative videos showcasing our capabilities, innovations, and processes.

Optical Assemblies: Reliable and Precise Solutions

March 13, 2025
Ensure your optical system works seamlessly with Lacroix Optics' custom optical assemblies. Discover the precision and reliability we bring to every project.