PROJECTION DEVICE AND PROJECTION LENS

• Main Authors: KURODA YASUTO, MIYATA YASUYUKI, SHIMIZU HITOSHI
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2021
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

Provided are a projection device and a projection lens that are highly convenient. A projection device (2) includes: a drive housing (55) having a projection (95) which projects from a center section (96); a projection lens (10) having a first rotary mechanism (88A); and a fan (92) for the intake or exhaust of gas. The center section (96) has a first A-side surface (55C1) on a first A-direction X1 side, which is one direction in a first direction X, and a second A-side surface (55D1) on a first B-direction X2 side, which is the other direction in the first direction X. The projection (95) has a first B-side surface (55C2) on the first A-direction X1 side, and a second B-side surface (55D2) on the first B-direction side facing the projection lens. The fan (92) faces the second A-side surface (55D1) and the second B-side surface (55D2). 本发明提供一种便利性高的投影装置及投影透镜。投影装置(2)具备：驱动壳体(55)，具有从中央部(96)突出的突出部(95)；投影透镜(10)，具有第1旋转机构(88A)；及风扇(92)，吸入或排出气体，中央部(96)在第1方向X的一侧即第1A方向X1侧具有第1A侧面(55C1)且在第1方向X的另一侧即第1B方向X2侧具有第2A侧面(55D1)，突出部(