Invention Grant
- Patent Title: Digital planetarium apparatus
- Patent Title (中): 数位天文馆仪器
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Application No.: US11649681Application Date: 2007-01-04
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Publication No.: US07748852B2Publication Date: 2010-07-06
- Inventor: Junji Nishigaki
- Applicant: Junji Nishigaki
- Applicant Address: JP Osaka
- Assignee: Konica Minolta Planetarium Co., Ltd.
- Current Assignee: Konica Minolta Planetarium Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Sidley Austin LLP
- Priority: JP2006-003194 20060111
- Main IPC: G03B21/14
- IPC: G03B21/14
Abstract:
A digital planetarium apparatus includes an original image generator, an intermediate image generator, and a fish-eye lens. The original image generator is formed of two video projectors and generates semicircular images in display devices inside the respective video projectors. The intermediate image generator optically focuses the two semicircular images generated by the original image generator to thereby generate a circular image. The fish-eye lens projects the circular image generated by the intermediate image generator.
Public/Granted literature
- US20070159607A1 Digital planetarium apparatus Public/Granted day:2007-07-12
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