Specifications

Material: PMMA
Color: Transparent
Shape: Aspheric
Lens Diameter: 34MM
Focal Length: 40MM
Light Transmission: 93%
Temperature Resistance: -35+55℃
Standard: SGS/ROHS

Category:

Description

Google Cardboard Lenses 34mm Biconvex Lens 40 mm Focal Length Lens

Specifications

Material: PMMA
Color: Transparent
Shape: Aspheric
Lens Diameter: 34MM
Focal Length: 40MM
Light Transmission: 93%
Temperature Resistance: -35+55℃
Standard: SGS/ROHS

Parameters Value Unit Comments
Designed FOV 80 o Circular total field of view
Nyquist frequency 8.7 lp/mm Based on Nexus 5 screen resolution (1920 x
1080 px), pixel pitch 57.6 μm
Display cover glass
thickness
1.4 mm nd=1.5, v = 55
Design wavelength 550 nm +/- 25 nm (equal weighting)
Pupil diameter 15 mm Also known as the “eyebox”
Eye relief 18 mm From the designed eye pupil to lens surface
vertex
Nominal virtual image
distance
-667 mm
Lens diameter 34 mm
Lens edge thickness 1.5 mm At 34 mm diameter
Lens material PMMA nd=1.492, v = 57.4
Tab to screen distance 39.07 mm From the tab surface (facing display) to the front
surface of display coverglass

 

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