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US 10,095,022 B2Granted
Ocular optical system
AssigneeGenius Electronic Optical Co., Ltd.
InventorsJia-Sin Jhang, Mao Zong Lin, Yan Xuan Yin
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AssigneeGenius Electronic Optical Co., Ltd.
InventorsJia-Sin Jhang, Mao Zong Lin, Yan Xuan Yin
Estimating the term…
An ocular optical system adapted for an imaging ray of a display image being entered an observer's eye through the ocular optical system to form an image is provided. The ocular optical system includes a first lens and a second lens arranged in order from an eye-side to a display-side along an optical axis. Each of the first lens and the second lens has an eye-side surface and a display-side surface. A maximum distance between the display-side surface of the first lens and the eye-side surface of the second lens parallel to a direction of the optical axis is less than 5 millimeters, and the ocular optical system satisfies: 6≤DLD/EPD≤20. DLD is a diagonal length of the displayed image corresponding to a single pupil of the observer, and EPD represents an exit pupil diameter of the ocular optical system.
An ocular optical system, adapted for imaging of an imaging ray from a display screen which enters an eye of an observer via the ocular optical system, a side facing towards the eye being an eye-side, and a side facing towards the display screen being a display-side, wherein the ocular optical system comprises a first lens element and a second lens element in order from the eye-side to the display-side along an optical axis, each of the first lens element and the second lens element of the ocular optical system comprises an eye-side surface facing towards the eye-side and allowing the imaging ray to pass through and a display-side surface facing towards the display-side and allowing the imaging ray to pass through,
Dependencies are inferred from the claim text.