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US 2021/0063671 A1Published application
Optical element, method of producing optical element, and display device
AssigneeSeiko Epson Corporation
InventorAtsushi SAITO
Life of this patent
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Abstract
An optical element of the present disclosure includes a hologram layer, a resin substrate to which the hologram layer is adhered, and a holder portion that supports the resin substrate and has a thermal expansion coefficient smaller than that of the resin substrate. One of the holder portion and the resin substrate includes a contact surface along an axis extending in a plate thickness direction of the resin substrate, and the other of the holder portion and the resin substrate includes a pressing surface that presses the contact surface.
Claims10
An optical element comprising:
- a hologram layer;
- a resin substrate to which the hologram layer is adhered;
- and
- a holder portion configured to support the resin substrate and having a thermal expansion coefficient smaller than that of the resin substrate, wherein
- one of the holder portion and the resin substrate includes a contact surface along an axis extending in a plate thickness direction of the resin substrate, and
- other of the holder portion and the resin substrate includes a pressing surface that presses the contact surface.
3 more elements
Dependencies are inferred from the claim text.