Illumination apparatus, microscope apparatus, and cartridge
AssigneeOlympus Corporation
InventorKazuhiro HAYASHI
Life of this patent
Estimating the term…
Abstract
An illumination apparatus includes a surface light source that emits illumination light and a micro louver film that limits components of a divergence of the illumination light that are parallel to a light emission plane of the surface light source. The illumination apparatus satisfies the following conditional expression: 20°≤A≤60° (1) where A indicates, with reference to a direction for which the micro louver film limits the divergence of the illumination light, the maximum spread angle of the illumination light passing through the micro louver film.
Claims16
An illumination apparatus comprising:
- a surface light source configured to emit illumination light;
- and
- a micro louver film configured to limit components of a divergence of the illumination light that are parallel to a light emission plane of the surface light source, wherein
- the following conditional expression is satisfied:
- 20°≤A≤60° (1)
- where A indicates, with reference to a direction for which the micro louver film limits the divergence of the illumination light, a maximum spread angle of the illumination light passing through the micro louver film.
An illumination apparatus comprising:
- a surface light source;
- a transparent mount on which a sample is placed;
- a cartridge that includes an optical member and a mechanical structure, the optical member blocking at least a portion of illumination light emitted from the surface light source, the mechanical structure moving the optical member so as to change a position or posture of the optical member within the cartridge;
- a supporting base that supports the cartridge between the surface light source and the transparent mount in an attachable/detachable manner;
- and
- means for reporting the position or posture of the optical member to a user.
A carriage to be mounted in an illumination apparatus, the cartridge comprising:
- an optical member configured to block at least a portion of illumination light emitted from a surface light source of the illumination apparatus;
- a mechanical structure configured to move the optical member so as to change a position or posture of the optical member within the cartridge;
- and
- a display part that includes a scale and an indicator and displays information on the position or posture of the optical member, one of the scale and the indicator being moved in conjunction with the mechanical structure relative to another of the scale and the indicator.
Dependencies are inferred from the claim text.